US20180168860A1 - Steerable laser probe - Google Patents
Steerable laser probe Download PDFInfo
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- US20180168860A1 US20180168860A1 US15/899,432 US201815899432A US2018168860A1 US 20180168860 A1 US20180168860 A1 US 20180168860A1 US 201815899432 A US201815899432 A US 201815899432A US 2018168860 A1 US2018168860 A1 US 2018168860A1
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- United States
- Prior art keywords
- housing tube
- optic fiber
- actuation structure
- flexible housing
- illustratively
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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- RBXZEQMETUQOLG-UHFFFAOYSA-N CC(C1)C(C)CC1=C=C=CC=C Chemical compound CC(C1)C(C)CC1=C=C=CC=C RBXZEQMETUQOLG-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F9/00—Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
- A61F9/007—Methods or devices for eye surgery
- A61F9/008—Methods or devices for eye surgery using laser
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/18—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves
- A61B18/20—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using laser
- A61B18/201—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using laser with beam delivery through a hollow tube, e.g. forming an articulated arm ; Hand-pieces therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/18—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves
- A61B18/20—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using laser
- A61B18/22—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using laser the beam being directed along or through a flexible conduit, e.g. an optical fibre; Couplings or hand-pieces therefor
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F9/00—Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
- A61F9/007—Methods or devices for eye surgery
- A61F9/008—Methods or devices for eye surgery using laser
- A61F9/00821—Methods or devices for eye surgery using laser for coagulation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F9/00—Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
- A61F9/007—Methods or devices for eye surgery
- A61F9/008—Methods or devices for eye surgery using laser
- A61F2009/00861—Methods or devices for eye surgery using laser adapted for treatment at a particular location
- A61F2009/00863—Retina
Definitions
- the present disclosure relates to a surgical instrument, and, more particularly, to a steerable laser probe.
- ophthalmic procedures require a laser energy source.
- ophthalmic surgeons may use laser photocoagulation to treat proliferative retinopathy.
- Proliferative retinopathy is a condition characterized by the development of abnormal blood vessels in the retina that grow into the vitreous humor. Ophthalmic surgeons may treat this condition by energizing a laser to cauterize portions of the retina to prevent the abnormal blood vessels from growing and hemorrhaging.
- a surgeon is able aim the laser at a plurality of targets within the eye, e.g., by guiding or moving the laser from a first target to a second target within the eye. It is also important that the surgeon is able to easily control a movement of the laser. For example, the surgeon must be able to easily direct a laser beam by steering the beam to a first position aimed at a first target, guide the laser beam from the first position to a second position aimed at a second target, and hold the laser beam in the second position. Accordingly, there is a need for a surgical laser probe that can be easily guided to a plurality of targets within the eye.
- a steerable laser probe may comprise a handle, an actuation structure having an actuation structure distal end and an actuation structure proximal end, a flexible housing tube, and an optic fiber disposed within an inner bore of the handle and the flexible housing tube.
- a compression of the actuation structure may be configured to extend the actuation structure distal end relative to the actuation structure proximal end.
- an extension of the actuation structure distal end relative to the actuation structure proximal end may be configured to gradually curve the flexible housing tube and the optic fiber.
- a decompression of the actuation structure may be configured to retract the actuation structure distal end relative to the actuation structure proximal end.
- a retraction of the actuation structure distal end relative to the actuation structure proximal end may be configured to gradually straighten the flexible housing tube and the optic fiber.
- FIG. 2 is a schematic diagram illustrating a flexible housing tube
- FIG. 3 is a schematic diagram illustrating an exploded view of a steerable laser probe assembly
- FIGS. 4A, 4B, 4C, 4D, and 4E are schematic diagrams illustrating a gradual curving of an optic fiber
- FIGS. 5A, 5B, 5C, 5D, and 5E are schematic diagrams illustrating a gradual straightening of an optic fiber
- FIGS. 6A and 6B are schematic diagrams illustrating a handle
- FIG. 7 is a schematic diagram illustrating a flexible housing tube
- FIG. 8 is a schematic diagram illustrating an exploded view of a steerable laser probe assembly
- FIGS. 9A, 9B, 9C, 9D, and 9E are schematic diagrams illustrating a gradual curving of an optic fiber
- FIGS. 10A, 10B, 10C, 10D, and 10E are schematic diagrams illustrating a gradual straightening of an optic fiber.
- FIGS. 1A and 1B are schematic diagrams illustrating a handle 100 .
- FIG. 1A illustrates a top view of a handle 100 .
- handle 100 may comprise a handle distal end 101 , a handle proximal end 102 , a handle end plug 110 , a fixation mechanism housing 115 , and an actuation structure 120 having an actuation structure distal end 121 and an actuation structure proximal end 122 .
- actuation structure 120 may comprise a plurality of actuation arms 125 .
- each actuation arm 125 of a plurality of actuation arms 125 may comprise one or more extension joints 126 .
- an application of a force to actuation structure 120 may be configured to compress actuation structure 120 .
- a surgeon may compress actuation structure 120 by applying a force to a portion of actuation structure 120 .
- an application of a force to a portion of an actuation arm 125 of a plurality of actuation arms 125 may be configured to compress actuation structure 120 .
- a surgeon may compress actuation structure 120 by applying a force to a portion of an actuation arm 125 of a plurality of actuation arms 125 .
- actuation structure 120 may be compressed by an application of one or more forces at one or more locations around an outer perimeter of actuation structure 120 .
- the one or more locations may comprise any of a plurality of locations around the outer perimeter of actuation structure 120 .
- a surgeon may compress actuation structure 120 by squeezing actuation structure 120 .
- the surgeon may compress actuation structure 120 by squeezing actuation structure 120 at any particular location of a plurality of locations around an outer perimeter of actuation structure 120 .
- a surgeon may rotate handle 100 and compress actuation structure 120 in any rotational orientation of a plurality of rotational orientations of handle 100 .
- a compression of actuation structure 120 may be configured to increase a distance between actuation structure distal end 121 and actuation structure proximal end 122 .
- a compression of actuation structure 120 may be configured to extend actuation structure distal end 121 relative to actuation structure proximal end 122 .
- an application of a force having a magnitude in a range of 0.6 to 1.6 pounds to a portion of actuation structure 120 may be conic) figured to compress actuation structure 120 , e.g., an application of a force having a magnitude of 1.1 pounds to a portion of actuation structure 120 may be configured to compress actuation structure 120 .
- an application of a force having a magnitude less than 0.6 pounds or greater than 1.6 pounds to a portion of actuation structure 120 may be configured to compress actuation structure 120 .
- a compression of actuation structure 120 may be configured to extend actuation structure distal end 121 in a range of 0.02 to 0.06 inches relative to actuation structure proximal end 122 .
- a compression of actuation structure 120 may be configured to extend actuation structure distal end 121 less than 0.02 inches or greater than 0.06 inches relative to actuation structure proximal end 122 .
- a compression of actuation structure 120 may be configured to increase a distance between actuation structure distal end 121 and actuation structure proximal end 122 in a range of 0.5 to 2.5 percent.
- a compression of actuation structure 120 may be configured to increase a distance between actuation structure distal end 121 and actuation structure proximal end 122 by less than 0.5 percent or greater than 2.5 percent.
- a compression of actuation structure 120 may be configured to increase a distance between handle distal end 101 and handle proximal end 102 .
- a compression of actuation structure 120 may be configured to extend handle distal end 101 relative to handle proximal end 102 .
- a compression of actuation structure 120 may be configured to expand an extension joint 126 of a particular actuation arm 125 of a plurality of actuation arms 125 .
- an expansion of an extension joint 126 of a particular actuation arm 125 may be configured to extend the particular actuation arm 125 , e.g., by increasing a distance between a distal end of the particular actuation arm 125 and a proximal end of the particular actuation arm 125 .
- an expansion of an extension joint 126 of a particular actuation arm 125 may be configured to extend a distal end of the particular arm 125 relative to actuation structure proximal end 122 .
- an expansion of an extension joint 126 of a particular actuation arm 125 may be configured to expand an extension joint 126 of each actuation arm 125 of a plurality of actuation arms 125 .
- an expansion of an extension joint 126 of a particular actuation arm 125 may be configured to extend actuation structure distal end 121 relative to actuation structure proximal end 122 .
- an expansion of an extension joint 126 of a particular actuation arm 125 may be configured to extend handle distal end 101 relative to handle proximal end 102 .
- a compression of actuation structure 120 may be configured to expand a plurality of extension joints 126 of a particular actuation arm 125 .
- an expansion of a plurality of extension joints 126 of a particular actuation arm 125 may be configured to expand a plurality of extension joints 126 of each actuation arm 125 of a plurality of actuation arms.
- an expansion of a plurality of extension joints 126 of a particular actuation arm 125 may be configured to extend actuation structure distal end 121 relative to actuation structure proximal end 122 .
- an expansion of a plurality of extension joints 126 of a particular actuation arm 125 may be configured to extend handle distal end 101 relative to handle proximal end 102 .
- a decompression of actuation structure 120 may be configured to decrease a distance between actuation structure distal end 121 and actuation structure proximal end 122 .
- a decompression of actuation structure 120 may be configured to retract actuation structure distal end 121 relative to actuation structure proximal end 122 .
- a removal of a force having a magnitude in a range of 0.6 to 1.6 pounds from a portion of actuation structure 120 may be configured to decompress actuation structure 120 , e.g., a removal of a force having a magnitude of 1.1 pounds from a portion of actuation structure 120 may be configured to decompress actuation structure 120 .
- a removal of a force having a magnitude less than 0.6 pounds or greater than 1.6 pounds from a portion of actuation structure 120 may be configured to decompress actuation structure 120 .
- a decompression of actuation structure 120 may be configured to retract actuation structure distal end 121 in a range of 0.02 to 0.06 inches relative to actuation structure proximal end 122 .
- a decompression of actuation structure 120 may be cons figured to retract actuation structure distal end 121 less than 0.02 inches or greater than 0.06 inches relative to actuation structure proximal end 122 .
- a decompression of actuation structure 120 may be configured to decrease a distance between actuation structure distal end 121 and actuation structure proximal end 122 in a range of 0.5 to 2.5 percent.
- a decompression of actuation structure 120 may be configured to decrease a distance between actuation structure distal end 121 and actuation structure proximal end 122 by less than 0.5 percent or greater than 2.5 percent. In one or more embodiments, a decompression of actuation structure 120 may be configured to decrease a distance between handle distal end 101 and handle proximal end 102 . Illustratively, a decompression of actuation structure 120 may be configured to retract handle distal end 101 relative to handle proximal end 102 . In one or more embodiments, a decompression of actuation structure 120 may be configured to collapse an extension joint 126 of a particular actuation arm 125 of a plurality of actuation arms 125 .
- a collapse of an extension joint 126 of a particular actuation arm 125 may be configured to retract the particular actuation arm 125 , e.g., by decreasing a distance between a distal end of the particular actuation arm 125 and a proximal end of the particular actuation arm 125 .
- a collapse of an extension joint 126 of a particular actuation arm 125 may be configured to retract a distal end of the particular arm 125 relative to actuation structure proximal end 122 .
- a collapse of an extension joint 126 of a particular actuation arm 125 may be configured to collapse an extension joint 126 of each actuation arm 125 of a plurality of actuation arms 125 .
- a collapse of an extension joint 126 of a particular actuation arm 125 may be configured to retract actuation structure distal end 121 relative to actuation structure proximal end 122 .
- a collapse of an extension joint 126 of a particular actuation arm 125 may be configured to retract handle distal end 101 relative to handle proximal end 102 .
- a decompression of actuation structure 120 may be configured to collapse a plurality of extension joints 126 of a particular actuation arm 125 .
- a collapse of a plurality of extension joints 126 of a particular actuation arm 125 may be configured to collapse a plurality of extension joints 126 of each actuation arm 125 of a plurality of actuation arms.
- a collapse of a plurality of extension joints 126 of a particular actuation arm 125 may be configured to retract actuation structure distal end 121 relative to actuation structure proximal end 122 .
- a collapse of a plurality of extension joints 126 of a particular actuation arm 125 may be configured to retract handle distal end 101 relative to handle proximal end 102 .
- actuation structure 120 may be manufactured from any suitable material, e.g., polymers, metals, metal alloys, etc., or from any combination of suitable materials.
- actuation structure 120 may be manufactured from a shape memory material.
- actuation structure 120 may be manufactured using a selective laser sintering machine.
- actuation structure 100 may be manufactured by additive manufacturing or 3 D printing.
- actuation structure 120 may be manufactured from a material suitable for sterilization by a medical autoclave.
- actuation structure 120 may be manufactured from a material, e.g., Nylon, configured to withstand exposure to temperatures, pressures, and ambient conditions present in a medical autoclave without degradation.
- actuation structure 120 may be configured to function normally after exposure in a temperature 250° F. for 15 minutes at an atmospheric pressure of 15 psi.
- actuation structure 120 may be configured to be used in a surgical procedure and then sterilized by a medical autoclave at least three times.
- actuation structure 120 may be configured to be used in a surgical procedure and then sterilized by a medical autoclave more than three times.
- actuation structure 120 may have a density in a range of 0.02 to 0.06 pounds per cubic inch, e.g., actuation structure 120 may have a density of 0.041 pounds per cubic inch.
- actuation structure 120 may have a density less than 0.02 pounds per cubic inch or greater than 0.06 pounds per cubic inch.
- actuation structure 120 may have a mass in a range of 0.01 to 0.03 pounds, e.g., actuation structure 120 may have a mass of 0.024 pounds.
- actuation structure 120 may have a mass less than 0.01 pounds or greater than 0.03 pounds.
- actuation structure 120 may have a volume in a range of 0.3 to 0.7 cubic inches, e.g., actuation structure 120 may have a volume of 0.577 cubic inches. Illustratively, actuation structure 120 may have a volume less than 0.3 cubic inches or greater than 0.7 cubic inches. In one or more embodiments, actuation structure 120 may have a surface area in a range of 10.0 to 20.0 square inches, e.g., actuation structure 120 may have a surface area of 14.87 square inches. Illustratively, actuation structure 120 may have a surface area less than 10.0 square inches or greater than 20.0 square inches.
- FIG. 1B illustrates a cross-sectional view of a handle 100 .
- handle 100 may comprise an inner bore 140 , an optic fiber housing 145 , and a flexible housing tube housing 150 .
- handle 100 may be manufactured from any suitable material, e.g., polymers, metals, metal alloys, etc., or from any combination of suitable materials.
- FIG. 2 is a schematic diagram illustrating a flexible housing tube 200 .
- flexible housing tube 200 may comprise a flexible housing tube distal end 201 and a flexible housing tube proximal end 202 .
- Flexible housing tube 200 may be manufactured from any suitable material, e.g., polymers, metals, metal alloys, etc., or from any combination of suitable materials.
- flexible housing tube 200 may comprise a shape memory material, e.g., Nitinol.
- flexible housing tube 200 may be manufactured from a material having an ultimate tensile strength in a range of 700 to 1000 MPa.
- flexible housing tube 200 may be manufactured from a material having ultimate tensile strength less than 700 MPa or greater than 1000 MPa. In one or more embodiments, flexible housing tube 200 may be manufactured from a material having a modulus of elasticity in a range of 30 to 80 GPa. In variousratively, flexible housing tube 200 may be manufactured from a material having a modulus of elasticity less than 30 GPa or greater than 80 GPa.
- flexible housing tube 200 may be manufactured with dimensions suitable for performing microsurgical procedures, e.g., ophthalmic surgical procedures.
- flexible housing tube 200 may be manufactured at gauge sizes commonly used in ophthalmic surgical procedures, e.g., 23 gauge, 25 gauge, etc.
- flexible housing tube 200 may be configured to be inserted in a cannula, e.g., a cannula used during an ophthalmic surgical procedure.
- one or more properties of flexible housing tube 200 may be optimized to reduce friction as flexible housing tube 200 is inserted into a cannula.
- one or more properties of flexible housing tube 200 may be optimized to reduce friction as flexible housing tube 200 is removed from a cannula.
- flexible housing tube 200 may have an ultimate tensile strength in a range of 1000 to 1100 MPa. In one or more embodiments, flexible housing tube 200 may have an ultimate tensile strength less than 1000 MPa or greater than 1100 MPa.
- an optic fiber 210 may be disposed within flexible housing tube 200 .
- optic fiber 210 may comprise an optic fiber distal end 211 and an optic fiber proximal end 212 .
- optic fiber 210 may be configured to transmit light, e.g., laser light.
- optic fiber 210 may be disposed within flexible housing tube 200 wherein optic fiber distal end 211 may be adjacent to flexible housing tube distal end 201 .
- a portion of optic fiber 210 may be fixed to a portion of flexible housing tube 200 , e.g., by an adhesive or any suitable fixation means.
- FIG. 3 is a schematic diagram illustrating an exploded view of a steerable laser probe assembly 300 .
- a steerable laser probe assembly 300 may comprise a handle 100 , a flexible housing tube 200 having a flexible housing tube distal end 201 and a flexible housing tube proximal end 202 , an optic fiber 210 having an optic fiber distal end 211 and an optic fiber proximal end 212 , a fixation mechanism 310 , and a light source interface 320 .
- light source interface 320 may be configured to interface with optic fiber 210 , e.g., at optic fiber proximal end 212 .
- light source interface 320 may comprise a standard light source connecter, e.g., an SMA connector.
- a portion of flexible housing tube 200 may be fixed to a portion of handle 100 , e.g., flexible housing tube proximal end 202 may be fixed to handle distal end 101 .
- a portion of flexible housing tube 200 may be fixed to a portion of handle 100 , e.g., by an adhesive or any suitable fixation means.
- a portion of flexible housing tube 200 may be disposed within flexible housing tube housing 150 , e.g., flexible housing tube proximal end 202 may be disposed within flexible housing tube housing 150 .
- a portion of flexible housing tube 200 may be fixed within flexible housing tube housing 150 , e.g., by an adhesive or any suitable fixation means.
- flexible housing tube 200 may be fixed within flexible housing tube housing 150 by a press fit, a weld, a setscrew, etc.
- optic fiber 210 may be disposed within inner bore 140 , optic fiber housing 145 , flexible housing tube housing 150 , and flexible housing tube 200 . In one or more embodiments, optic fiber 210 may be disposed within flexible housing tube 200 wherein optic fiber distal end 211 may be adjacent to flexible housing tube distal end 201 . In one or more embodiments, a portion of optic fiber 210 may be fixed to a portion of flexible housing tube 200 , e.g., by an adhesive or any suitable fixation means. Illustratively, a portion of optic fiber 210 may be fixed within optic fiber housing 145 , e.g., by an adhesive or any suitable fixation means.
- fixation mechanism 310 may be configured to fix a portion of optic fiber 210 within optic fiber housing 145 , e.g., fixation mechanism 310 may be disposed within fixation mechanism housing 115 and optic fiber housing 145 .
- fixation mechanism 310 may be configured to fix a portion of optic fiber 210 within optic fiber housing 145 , e.g., by a press fit or any suitable fixation means.
- fixation mechanism 310 may comprise a set screw, e.g., configured to fix a portion of optic fiber 210 within optic fiber housing 145 .
- a compression of actuation structure 120 may be configured to extend actuation structure distal end 121 relative to actuation structure proximal end 122 .
- an extension of actuation structure distal end 121 relative to actuation structure proximal end 122 may be configured to extend handle distal end 101 relative to handle proximal end 102 .
- an extension of handle distal end 101 relative to handle proximal end 102 may be configured to extend flexible housing tube 200 relative to handle proximal end 102 .
- an extension of flexible housing tube 200 relative to handle proximal end 102 may be configured to extend flexible housing tube 200 relative to optic fiber 210 .
- a portion of optic fiber 210 may be configured to resist an extension of flexible housing tube 200 relative to optic fiber 210 .
- an extension of flexible housing tube 200 relative to optic fiber 210 may be configured to compress a portion of flexible housing tube 200 , e.g., a portion of optic fiber 210 fixed to a portion of flexible housing tube 200 may be configured compress a portion of flexible housing tube 200 .
- a compression of a portion of flexible housing tube 200 may be configured to cause flexible housing tube 200 to gradually curve.
- a gradual curving of flexible housing tube 200 may be configured to gradually curve optic fiber 210 .
- a compression of actuation structure 120 may be configured to gradually curve flexible housing tube 200 .
- a compression of actuation structure 120 may be configured to gradually curve optic fiber 210 .
- a decompression of actuation structure 120 may be configured to retract actuation structure distal end 121 relative to actuation structure proximal end 122 .
- a retraction of actuation structure distal end 121 relative to actuation structure proximal end 122 may be configured to retract handle distal end 101 relative to handle proximal end 102 .
- a retraction of handle distal end 101 relative to handle proximal end 102 may be configured to retract flexible housing tube 200 relative to handle proximal end 102 .
- a retraction of flexible housing tube 200 relative to handle proximal end 102 may be configured to retract flexible housing tube 200 relative to optic fiber 210 .
- a portion of optic fiber 210 e.g., a portion of optic fiber 210 fixed to flexible housing tube 200 , may be configured to facilitate a retraction of flexible housing tube 200 relative to optic fiber 210 .
- a retraction of flexible housing tube 200 relative to optic fiber 210 may be configured to decompress a portion of flexible housing tube 200 , e.g., a portion of optic fiber 210 fixed to a portion of flexible housing tube 200 may be configured decompress a portion of flexible housing tube 200 .
- a decompression of a portion of flexible housing tube 200 may be configured to cause flexible housing tube 200 to gradually straighten.
- a gradual straightening of flexible housing tube 200 may be configured to gradually straighten optic fiber 210 .
- a decompression of actuation structure 120 may be configured to gradually straighten flexible housing tube 200 .
- a decompression of actuation structure 120 may be configured to gradually straighten optic fiber 210 .
- FIGS. 4A, 4B, 4C, 4D, and 4E are schematic diagrams illustrating a gradual curving of an optic fiber 210 .
- FIG. 4A illustrates a straight optic fiber 400 .
- optic fiber 210 may comprise a straight optic fiber 400 , e.g., when actuation structure 120 is fully decompressed.
- optic fiber 210 may comprise a straight optic fiber 400 , e.g., when flexible housing tube 200 is fully retracted relative to optic fiber 210 .
- a line tangent to optic fiber distal end 211 may be parallel to a line tangent to flexible housing tube proximal end 202 , e.g., when optic fiber 210 comprises a straight optic fiber 400 .
- FIG. 4B illustrates an optic fiber in a first curved position 410 .
- a compression of actuation structure 120 may be configured to gradually curve optic fiber 210 from a straight optic fiber 400 to an optic fiber in a first curved position 410 .
- a compression of actuation structure 120 may be configured to extend actuation structure distal end 121 relative to actuation structure proximal end 122 .
- an extension of actuation structure distal 121 end relative to actuation structure proximal end 122 may be configured to extend flexible housing tube 200 relative to optic fiber 210 .
- an extension of flexible housing tube 200 relative to optic fiber 210 may be configured to compress a portion of flexible housing tube 200 .
- a compression of a portion of flexible housing tube 200 may be configured to gradually curve flexible housing tube 200 .
- a gradual curving of flexible housing tube 200 may be configured to gradually curve optic fiber 210 , e.g., from a straight optic fiber 400 to an optic fiber in a first curved position 410 .
- a line tangent to optic fiber distal end 211 may intersect a line tangent to flexible housing tube proximal end 202 at a first angle, e.g., when optic fiber 210 comprises an optic fiber in a first curved position 410 .
- the first angle may comprise any angle greater than zero degrees.
- the first angle may comprise a 45 degree angle.
- FIG. 4C illustrates an optic fiber in a second curved position 420 .
- a compression of actuation structure 120 may be configured to gradually curve optic fiber 210 from an optic fiber in a first curved position 410 to an optic fiber in a second curved position 420 .
- a compression of actuation structure 120 may be configured to extend actuation structure distal end 121 relative to actuation structure proximal end 122 .
- an extension of actuation structure distal 121 end relative to actuation structure proximal end 122 may be configured to extend flexible housing tube 200 relative to optic fiber 210 .
- an extension of flexible housing tube 200 relative to optic fiber 210 may be configured to compress a portion of flexible housing tube 200 .
- a compression of a portion of flexible housing tube 200 may be configured to gradually curve flexible housing tube 200 .
- a gradual curving of flexible housing tube 200 may be configured to gradually curve optic fiber 210 , e.g., from an optic fiber in a first curved position 410 to an optic fiber in a second curved position 420 .
- a line tangent to optic fiber distal end 211 may intersect a line tangent to flexible housing tube proximal end 202 at a second angle, e.g., when optic fiber 210 comprises an optic fiber in a second curved position 420 .
- the second angle may comprise any angle greater than the first angle.
- the second angle may comprise a 90 degree angle.
- FIG. 4D illustrates an optic fiber in a third curved position 430 .
- a compression of actuation structure 120 may be configured to gradually curve optic fiber 210 from an optic fiber in a second curved position 420 to an optic fiber in a third curved position 430 .
- a compression of actuation structure 120 may be configured to extend actuation structure distal end 121 relative to actuation structure proximal end 122 .
- an extension of actuation structure distal 121 end relative to actuation structure proximal end 122 may be configured to extend flexible housing tube 200 relative to optic fiber 210 .
- an extension of flexible housing tube 200 relative to optic fiber 210 may be configured to compress a portion of flexible housing tube 200 .
- a compression of a portion of flexible housing tube 200 may be configured to gradually curve flexible housing tube 200 .
- a gradual curving of flexible housing tube 200 may be configured to gradually curve optic fiber 210 , e.g., from an optic fiber in a second curved position 420 to an optic fiber in a third curved position 430 .
- a line tangent to optic fiber distal end 211 may intersect a line tangent to flexible housing tube proximal end 202 at a third angle, e.g., when optic fiber 210 comprises an optic fiber in a third curved position 430 .
- the third angle may comprise any angle greater than the second angle.
- the third angle may comprise a 135 degree angle.
- FIG. 4E illustrates an optic fiber in a fourth curved position 440 .
- a compression of actuation structure 120 may be configured to gradually curve optic fiber 210 from an optic fiber in a third curved position 430 to an optic fiber in a fourth curved position 440 .
- a compression of actuation structure 120 may be configured to extend actuation structure distal end 121 relative to actuation structure proximal end 122 .
- an extension of actuation structure distal 121 end relative to actuation structure proximal end 122 may be configured to extend flexible housing tube 200 relative to optic fiber 210 .
- an extension of flexible housing tube 200 relative to optic fiber 210 may be configured to compress a portion of flexible housing tube 200 .
- a compression of a portion of flexible housing tube 200 may be configured to gradually curve flexible housing tube 200 .
- a gradual curving of flexible housing tube 200 may be configured to gradually curve optic fiber 210 , e.g., from an optic fiber in a third curved position 430 to an optic fiber in a fourth curved position 440 .
- a line tangent to optic fiber distal end 211 may be parallel to a line tangent to flexible housing tube proximal end 202 , e.g., when optic fiber 210 comprises an optic fiber in a fourth curved position 440 .
- one or more properties of a steerable laser probe may be adjusted to attain one or more desired steerable laser probe features.
- a length that flexible housing tube distal end 201 extends from handle distal end 101 may be adjusted to vary an amount of compression of actuation structure 120 configured to curve flexible housing tube 200 to a particular curved position.
- a stiffness of flexible housing tube 200 may be adjusted to vary an amount of compression of actuation structure 120 configured to curve flexible housing tube 200 to a particular curved position.
- a material comprising flexible housing tube 200 may be adjusted to vary an amount of compression of actuation structure 120 configured to curve flexible housing tube 200 to a particular curved position.
- a geometry of actuation structure 120 may be adjusted to vary an amount of compression of actuation structure 120 configured to curve flexible housing tube 200 to a particular curved position.
- one or more locations within flexible housing tube 200 wherein optic fiber 210 may be fixed to a portion of flexible housing tube 200 may be adjusted to vary an amount of compression of actuation structure 120 configured to curve flexible housing tube 200 to a particular curved position.
- optic fiber 210 may be enclosed in an optic fiber sleeve configured to, e.g., protect optic fiber 210 , vary a stiffness of optic fiber 210 , vary an optical property of optic fiber 210 , etc.
- an optic fiber sleeve may be configured to compress a portion of flexible housing tube 200 .
- a portion of an optic fiber sleeve may be fixed within optic fiber housing 145 , e.g., by an adhesive or any suitable fixation means.
- a portion of an optic fiber sleeve may be fixed to a portion of flexible housing tube 200 , e.g., by an adhesive or any suitable fixation means.
- a compression of actuation structure 120 may be configured to extend flexible housing tube 200 relative to an optic fiber sleeve.
- a portion of an optic fiber sleeve e.g., a portion of an optic fiber sleeve fixed to a portion of flexible housing tube 200 , may be configured to resist an extension of flexible housing tube 200 relative to the optic fiber sleeve.
- an extension of flexible housing tube 200 relative to an optic fiber sleeve may be configured to compress a portion of flexible housing tube 200 .
- a compression of a portion of flexible housing tube 200 may be configured to gradually curve flexible housing tube 200 .
- a gradual curving of flexible housing tube 200 may be configured to gradually curve optic fiber 210 .
- optic fiber 210 may comprise a buffer, a cladding disposed in the buffer, and a core disposed in the cladding.
- at least a portion of optic fiber 210 may comprise a buffer configured to protect an optical property of optic fiber 210 .
- at least a portion of optic fiber 210 may comprise a buffer configured to protect an optical layer of optic fiber 210 , e.g., the buffer may protect an optical layer of a curved portion of optic fiber 210 .
- at least a portion of optic fiber 210 may comprise a polyimide buffer configured to protect an optical property of optic fiber 210 .
- at least a portion of optic fiber 210 may comprise a Kapton buffer configured to protect an optical property of optic fiber 210 .
- a steerable laser probe may be configured to indicate, e.g., to a surgeon, a direction that optic fiber 210 may curve, e.g., due to a compression of actuation structure 120 .
- a portion of a steerable laser probe e.g., handle 100
- a portion of handle 100 may comprise an arrow marking configured to indicate a direction that optic fiber 210 may curve.
- a portion of flexible housing tube 200 may comprise a mark configured to indicate a direction that optic fiber 210 may curve.
- flexible housing tube 200 may comprise a slight curve, e.g., a curve less than 7.5 degrees, when actuation structure 120 is fully decompressed.
- flexible housing tube 200 may comprise a slight curve, e.g., a curve equal to or greater than 7.5 degrees, when actuation structure 120 is fully decompressed.
- flexible housing tube 200 may comprise a slight curve configured to indicate a direction that optic fiber 210 may curve, e.g., due to a compression of actuation structure 120 .
- FIGS. 5A, 5B, 5C, 5D, and 5E are schematic diagrams illustrating a gradual straightening of an optic fiber 210 .
- FIG. 5A illustrates a fully curved optic fiber 500 .
- optic fiber 210 may comprise a fully curved optic fiber 500 , e.g., when actuation structure 120 is fully compressed.
- optic fiber 210 may comprise a fully curved optic fiber 500 , e.g., when flexible housing tube 200 is fully extended relative to optic fiber 210 .
- a line tangent to optic fiber distal end 211 may be parallel to a line tangent to flexible housing tube proximal end 202 , e.g., when optic fiber 210 comprises a fully curved optic fiber 500 .
- FIG. 5B illustrates an optic fiber in a first partially straightened position 510 .
- a decompression of actuation structure 120 may be configured to gradually straighten optic fiber 210 from a fully curved optic fiber 500 to an optic fiber in a first partially straightened position 510 .
- a decompression of actuation structure 120 may be configured to retract actuation structure distal end 121 relative to actuation structure proximal end 122 .
- a retraction of actuation structure distal end 121 relative to actuation structure proximal end 122 may be configured to retract flexible housing tube 200 relative to optic fiber 210 .
- a portion of optic fiber 210 may be configured to facilitate a retraction of flexible housing tube 200 relative to optic fiber 210 .
- a retraction of flexible housing tube 200 relative to optic fiber 210 may be configured to decompress a portion of flexible housing tube 200 .
- a decompression of a portion of flexible housing tube 200 may be configured to gradually straighten flexible housing tube 200 .
- a gradual straightening of flexible housing tube 200 may be configured to gradually straighten optic fiber 210 , e.g., from a fully curved optic fiber 500 to an optic fiber in a first partially straightened position 510 .
- a line tangent to optic fiber distal end 211 may intersect a line tangent to flexible housing tube proximal end 202 at a first partially straightened angle, e.g., when optic fiber 210 comprises an optic fiber in a first partially straightened position 510 .
- the first partially straightened angle may comprise any angle less than 180 degrees.
- the first partially straightened angle may comprise a 135 degree angle.
- FIG. 5C illustrates an optic fiber in a second partially straightened position 520 .
- a decompression of actuation structure 120 may be configured to gradually straighten optic fiber 210 from an optic fiber in a first partially straightened position 510 to an optic fiber in a second partially straightened position 520 .
- a decompression of actuation structure 120 may be configured to retract actuation structure distal end 121 relative to actuation structure proximal end 122 .
- a retraction of actuation structure distal end 121 relative to actuation structure proximal end 122 may be configured to retract flexible housing tube 200 relative to optic fiber 210 .
- a portion of optic fiber 210 may be configured to facilitate a retraction of flexible housing tube 200 relative to optic fiber 210 .
- a retraction of flexible housing tube 200 relative to optic fiber 210 may be configured to decompress a portion of flexible housing tube 200 .
- a decompression of a portion of flexible housing tube 200 may be configured to gradually straighten flexible housing tube 200 .
- a gradual straightening of flexible housing tube 200 may be configured to gradually straighten optic fiber 210 , e.g., from an optic fiber in a first partially straightened position 510 to an optic fiber in a second partially straightened position 520 .
- a line tangent to optic fiber distal end 211 may intersect a line tangent to flexible housing tube proximal end 202 at a second partially straightened angle, e.g., when optic fiber 210 comprises an optic fiber in a second partially straightened position 520 .
- the second partially straightened angle may comprise any angle less than the first partially straightened angle.
- the second partially straightened angle may comprise a 90 degree angle.
- FIG. 5D illustrates an optic fiber in a third partially straightened position 530 .
- a decompression of actuation structure 120 may be configured to gradually straighten optic fiber 210 from an optic fiber in a second partially straightened position 520 to an optic fiber in a third partially straightened position 530 .
- a decompression of actuation structure 120 may be configured to retract actuation structure distal end 121 relative to actuation structure proximal end 122 .
- a retraction of actuation structure distal end 121 relative to actuation structure proximal end 122 may be configured to retract flexible housing tube 200 relative to optic fiber 210 .
- a portion of optic fiber 210 may be configured to facilitate a retraction of flexible housing tube 200 relative to optic fiber 210 .
- a retraction of flexible housing tube 200 relative to optic fiber 210 may be configured to decompress a portion of flexible housing tube 200 .
- a decompression of a portion of flexible housing tube 200 may be configured to gradually straighten flexible housing tube 200 .
- a gradual straightening of flexible housing tube 200 may be configured to gradually straighten optic fiber 210 , e.g., from an optic fiber in a second partially straightened position 520 to an optic fiber in a third partially straightened position 530 .
- a line tangent to optic fiber distal end 211 may intersect a line tangent to flexible housing tube proximal end 202 at a third partially straightened angle, e.g., when optic fiber 210 comprises an optic fiber in a third partially straightened position 530 .
- the third partially straightened angle may comprise any angle less than the second partially straightened angle.
- the third partially straightened angle may comprise a 45 degree angle.
- FIG. 5E illustrates an optic fiber in a fully straightened position 540 .
- a decompression of actuation structure 120 may be configured to gradually straighten optic fiber 210 from an optic fiber in a third partially straightened position 530 to an optic fiber in a fully straightened position 540 .
- a decompression of actuation structure 120 may be configured to retract actuation structure distal end 121 relative to actuation structure proximal end 122 .
- a retraction of actuation structure distal end 121 relative to actuation structure proximal end 122 may be configured to retract flexible housing tube 200 relative to optic fiber 210 .
- a portion of optic fiber 210 may be configured to facilitate a retraction of flexible housing tube 200 relative to optic fiber 210 .
- a retraction of flexible housing tube 200 relative to optic fiber 210 may be configured to decompress a portion of flexible housing tube 200 .
- a decompression of a portion of flexible housing tube 200 may be configured to gradually straighten flexible housing tube 200 .
- a gradual straightening of flexible housing tube 200 may be configured to gradually straighten optic fiber 210 , e.g., from an optic fiber in a third partially straightened position 530 to an optic fiber in a fully straightened position 540 .
- a line tangent to optic fiber distal end 211 may be parallel to a line tangent to flexible housing tube proximal end 202 , e.g., when optic fiber 210 comprises an optic fiber in a fully straightened position 540 .
- a surgeon may aim optic fiber distal end 211 at any of a plurality of targets within an eye, e.g., to perform a photocoagulation procedure, to illuminate a surgical target site, etc.
- a surgeon may aim optic fiber distal end 211 at any target within a particular transverse plane of the inner eye by, e.g., rotating handle 100 to orient flexible housing tube 200 in an orientation configured to cause a curvature of flexible housing tube 200 within the particular transverse plane of the inner eye and varying an amount of compression of actuation structure 120 .
- a surgeon may aim optic fiber distal end 211 at any target within a particular sagittal plane of the inner eye by, e.g., rotating handle 100 to orient flexible housing tube 200 in an orientation configured to cause a curvature of flexible housing tube 200 within the particular sagittal plane of the inner eye and varying an amount of compression of actuation structure 120 .
- a surgeon may aim optic fiber distal end 211 at any target within a particular frontal plane of the inner eye by, e.g., varying an amount of compression of actuation structure 120 to orient a line tangent to optic fiber distal end 211 wherein the line tangent to optic fiber distal end 211 is within the particular frontal plane of the inner eye and rotating handle 100 .
- a surgeon may aim optic fiber distal end 211 at any target located outside of the particular transverse plane, the particular sagittal plane, and the particular frontal plane of the inner eye, e.g., by varying a rotational orientation of handle 100 and varying an amount of compression of actuation structure 120 .
- a surgeon may aim optic fiber distal end 211 at any target of a plurality of targets within an eye, e.g., without increasing a length of a portion of a steerable laser probe within the eye.
- a surgeon may aim optic fiber distal end 211 at any target of a plurality of targets within an eye, e.g., without decreasing a length of a portion of a steerable laser probe within the eye.
- FIGS. 6A and 6B are schematic diagrams illustrating a handle 600 .
- FIG. 6A illustrates a top view of a handle 600 .
- handle 600 may comprise a handle distal end 601 , a handle proximal end 602 , a handle end plug 610 , a fixation mechanism housing 615 , and an actuation structure 120 having an actuation structure distal end 121 and an actuation structure proximal end 122 .
- actuation structure 120 may comprise a plurality of actuation arms 125 .
- each actuation arm 125 of a plurality of actuation arms 125 may comprise one or more extension joints 126 .
- FIG. 1 illustrates a top view of a handle 600 .
- handle 600 may comprise a handle distal end 601 , a handle proximal end 602 , a handle end plug 610 , a fixation mechanism housing 615 , and an actuation structure 120 having an actuation structure distal end
- handle 600 may comprise an inner bore 640 , a cable housing 645 , and a flexible housing tube housing 650 .
- handle 600 may be manufactured from any suitable material, e.g., polymers, metals, metal alloys, etc., or from any combination of suitable materials.
- FIG. 7 is a schematic diagram illustrating a flexible housing tube 200 .
- an optic fiber 210 may be disposed within flexible housing tube 200 .
- optic fiber 210 may comprise an optic fiber distal end 211 and an optic fiber proximal end 212 .
- optic fiber 210 may be configured to transmit light, e.g., laser light, illumination light, etc.
- optic fiber 210 may be disposed within flexible housing tube 200 wherein optic fiber distal end 211 may be adjacent to flexible housing tube distal end 201 .
- a portion of optic fiber 210 may be fixed to an inner portion of flexible housing tube 200 , e.g., by an adhesive or any suitable fixation means.
- a cable 710 may be disposed within flexible housing tube 200 .
- cable 710 may comprise a cable distal end 711 and a cable proximal end 712 .
- cable 710 may be disposed within flexible housing tube 200 wherein cable distal end 711 may be adjacent to flexible housing tube distal end 201 .
- a portion of cable 710 may be fixed to a portion of flexible housing tube 200 , e.g., by an adhesive or any suitable fixation means.
- a portion of cable 710 may be fixed to flexible housing tube 200 by a weld, a loop, a tie, etc.
- FIG. 8 is a schematic diagram illustrating an exploded view of a steerable laser probe assembly 800 .
- a steerable laser probe assembly 800 may comprise a handle 600 , a flexible housing tube 200 having a flexible housing tube distal end 201 and a flexible housing tube proximal end 202 , an optic fiber 210 having an optic fiber distal end 211 and an optic fiber proximal end 212 , a cable 710 having a cable distal end 711 and a cable proximal end 712 , a fixation mechanism 810 , and a light source interface 320 .
- light source interface 320 may be configured to intern face with optic fiber 210 , e.g., at optic fiber proximal end 212 .
- light source interface 320 may comprise a standard light source connecter, e.g., an SMA connector.
- a portion of flexible housing tube 200 may be fixed to a portion of handle 600 , e.g., flexible housing tube proximal end 202 may be fixed to handle distal end 601 .
- a portion of flexible housing tube 200 may be fixed to a portion of handle 600 , e.g., by an adhesive or any suitable fixation means.
- a portion of flexible housing tube 200 may be disposed within flexible housing tube housing 650 , e.g., flexible housing tube proximal end 202 may be disposed within flexible housing tube housing 650 .
- a portion of flexible housing tube 200 may be fixed within flexible housing tube housing 650 , e.g., by an adhesive or any suitable fixation means.
- flexible housing tube 200 may be fixed within flexible housing tube housing 650 by a press fit, a weld, a setscrew, etc.
- optic fiber 210 may be disposed within inner bore 640 , flexible housing tube housing 650 , and flexible housing tube 200 .
- optic fiber 210 may be disposed within flexible housing tube 200 wherein optic fiber distal end 211 may be adjacent to flexible housing tube distal end 201 .
- a portion of optic fiber 210 may be fixed to a portion of flexible housing tube 200 , e.g., by an adhesive or any suitable fixation means.
- cable 710 may be disposed within cable housing 645 , inner bore 640 , flexible housing tube housing 650 , and flexible housing tube 200 .
- cable 710 may be disposed within flexible housing tube 200 wherein cable distal end 711 may be adjacent to flexible housing tube distal end 201 .
- a portion of cable 710 may be fixed to a portion of flexible housing tube 200 , e.g., by an adhesive or any suitable fixation means.
- a portion of cable 710 may be fixed to flexible housing tube 200 by a weld, a loop, a tie, etc.
- a portion of cable 710 may be fixed within cable housing 645 , e.g., by an adhesive or any suitable fixation means.
- fixation mechanism 810 may be configured to fix a portion of cable 710 within cable housing 645 , e.g., fixation mechanism 810 may be disposed within fixation mechanism housing 615 and cable housing 645 .
- fixation mechanism 810 may be configured to fix a portion of cable 710 within cable housing 645 , e.g., by a press fit or any suitable fixation means.
- fixation mechanism 810 may comprise a set screw, e.g., configured to fix a portion of cable within cable housing 645 .
- a compression of actuation structure 120 may be configured to extend actuation structure distal end 121 relative to actuation structure proximal end 122 .
- an extension of actuation structure distal end 121 relative to actuation structure proximal end 122 may be configured to extend handle distal end 601 relative to handle proximal end 602 .
- an extension of handle distal end 601 relative to handle proximal end 602 may be configured to extend flexible housing tube 200 relative to handle proximal end 602 .
- an extension of flexible housing tube 200 relative to handle proximal end 602 may be configured to extend flexible housing tube 200 relative to cable 710 .
- a portion of cable 710 may be configured to resist an extension of flexible housing tube 200 relative to cable 710 .
- an extension of flexible housing tube 200 relative to cable 710 may be configured to compress a portion of flexible housing tube 200 , e.g., a portion of cable 710 fixed to a portion of flexible housing tube 200 may be configured compress a portion of flexible housing tube 200 .
- a compression of a portion of flexible housing tube 200 may be configured to cause flexible housing tube 200 to gradually curve.
- a gradual curving of flexible housing tube 200 may be configured to gradually curve optic fiber 210 .
- a compression of actuation structure 120 may be configured to gradually curve flexible housing tube 200 .
- a compression of actuation structure 120 may be configured to gradually curve optic fiber 210 .
- a decompression of actuation structure 120 may be configured to retract actuation structure distal end 121 relative to actuation structure proximal end 122 .
- a retraction of actuation structure distal end 121 relative to actuation structure proximal end 122 may be configured to retract handle distal end 601 relative to handle proximal end 602 .
- a retraction of handle distal end 601 relative to handle proximal end 602 may be configured to retract flexible housing tube 200 relative to handle proximal end 602 .
- a retraction of flexible housing tube 200 relative to handle proximal end 602 may be configured to retract flexible housing tube 200 relative to cable 710 .
- a portion of cable 710 e.g., a portion of cable 710 fixed to flexible housing tube 200
- a retraction of flexible housing tube 200 relative to cable 710 may be configured to decompress a portion of flexible housing tube 200 , e.g., a portion of cable 710 fixed to a portion of flexible housing tube 200 may be configured decompress a portion of flexible housing tube 200 .
- a decompression of a portion of flexible housing tube 200 may be configured to cause flexible housing tube 200 to gradually straighten.
- a gradual straightening of flexible housing tube 200 may be configured to gradually straighten optic fiber 210 .
- a decompression of actuation structure 120 may be configured to gradually straighten flexible housing tube 200 .
- a decompression of actuation structure 120 may be configured to gradually straighten optic fiber 210 .
- FIGS. 9A, 9B, 9C, 9D, and 9E are schematic diagrams illustrating a gradual curving of an optic fiber 210 .
- FIG. 9A illustrates a straight optic fiber 900 .
- optic fiber 210 may comprise a straight optic fiber 900 , e.g., when actuation structure 120 is fully decompressed.
- optic fiber 210 may comprise a straight optic fiber 900 , e.g., when flexible housing tube 200 is fully retracted relative to cable 710 .
- a line tangent to optic fiber distal end 211 may be parallel to a line tangent to flexible housing tube proximal end 202 , e.g., when optic fiber 210 comprises a straight optic fiber 900 .
- FIG. 9B illustrates an optic fiber in a first curved position 910 .
- a compression of actuation structure 120 may be configured to gradually curve optic fiber 210 from a straight optic fiber 900 to an optic fiber in a first curved position 910 .
- a compression of actuation structure 120 may be configured to extend actuation structure distal end 121 relative to actuation structure proximal end 122 .
- an extension of actuation structure distal 121 end relative to actuation structure proximal end 122 may be configured to extend flexible housing tube 200 relative to cable 710 .
- an extension of flexible housing tube 200 relative to cable 710 may be configured to compress a portion of flexible housing tube 200 .
- a compression of a portion of flexible housing tube 200 may be configured to gradually curve flexible housing tube 200 .
- a gradual curving of flexible housing tube 200 may be configured to gradually curve optic fiber 210 , e.g., from a straight optic fiber 900 to an optic fiber in a first curved position 910 .
- a line tangent to optic fiber distal end 211 may intersect a line tangent to flexible housing tube proximal end 202 at a first angle, e.g., when optic fiber 210 comprises an optic fiber in a first curved position 910 .
- the first angle may comprise any angle greater than zero degrees.
- the first angle may comprise a 45 degree angle.
- FIG. 9C illustrates an optic fiber in a second curved position 920 .
- a compression of actuation structure 120 may be configured to gradually curve optic fiber 210 from an optic fiber in a first curved position 910 to an optic fiber in a second curved position 920 .
- a compression of actuation structure 120 may be configured to extend actuation structure distal end 121 relative to actuation structure proximal end 122 .
- an extension of actuation structure distal 121 end relative to actuation structure proximal end 122 may be configured to extend flexible housing tube 200 relative to cable 710 .
- an extension of flexible housing tube 200 relative to cable 710 may be configured to compress a portion of flexible housing tube 200 .
- a compression of a portion of flexible housing tube 200 may be configured to gradually curve flexible housing tube 200 .
- a gradual curving of flexible housing tube 200 may be configured to gradually curve optic fiber 210 , e.g., from an optic fiber in a first curved position 910 to an optic fiber in a second curved position 920 .
- a line tangent to optic fiber distal end 211 may intersect a line tangent to flexible housing tube proximal end 202 at a second angle, e.g., when optic fiber 210 comprises an optic fiber in a second curved position 920 .
- the second angle may comprise any angle greater than the first angle.
- the second angle may comprise a 90 degree angle.
- FIG. 9D illustrates an optic fiber in a third curved position 930 .
- a compression of actuation structure 120 may be configured to gradually curve optic fiber 210 from an optic fiber in a second curved position 920 to an optic fiber in a third curved position 930 .
- a compression of actuation structure 120 may be configured to extend actuation structure distal end 121 relative to actuation structure proximal end 122 .
- an extension of actuation structure distal 121 end relative to actuation structure proximal end 122 may be configured to extend flexible housing tube 200 relative to cable 710 .
- an extension of flexible housing tube 200 relative to cable 710 may be configured to compress a portion of flexible housing tube 200 .
- a compression of a portion of flexible housing tube 200 may be configured to gradually curve flexible housing tube 200 .
- a gradual curving of flexible housing tube 200 may be configured to gradually curve optic fiber 210 , e.g., from an optic fiber in a second curved position 920 to an optic fiber in a third curved position 930 .
- a line tangent to optic fiber distal end 211 may intersect a line tangent to flexible housing tube proximal end 202 at a third angle, e.g., when optic fiber 210 comprises an optic fiber in a third curved position 930 .
- the third angle may comprise any angle greater than the second angle.
- the third angle may comprise a 135 degree angle.
- FIG. 9E illustrates an optic fiber in a fourth curved position 940 .
- a compression of actuation structure 120 may be configured to gradually curve optic fiber 210 from an optic fiber in a third curved position 930 to an optic fiber in a fourth curved position 940 .
- a compression of actuation structure 120 may be configured to extend actuation structure distal end 121 relative to actuation structure proximal end 122 .
- an extension of actuation structure distal 121 end relative to actuation structure proximal end 122 may be configured to extend flexible housing tube 200 relative to cable 710 .
- an extension of flexible housing tube 200 relative to cable 710 may be configured to compress a portion of flexible housing tube 200 .
- a compression of a portion of flexible housing tube 200 may be configured to gradually curve flexible housing tube 200 .
- a gradual curving of flexible housing tube 200 may be configured to gradually curve optic fiber 210 , e.g., from an optic fiber in a third curved position 930 to an optic fiber in a fourth curved position 940 .
- a line tangent to optic fiber distal end 211 may be parallel to a line tangent to flexible housing tube proximal end 202 , e.g., when optic fiber 210 comprises an optic fiber in a fourth curved position 940 .
- one or more properties of a steerable laser probe may be adjusted to attain one or more desired steerable laser probe features.
- a length that flexible housing tube distal end 201 extends from handle distal end 601 may be adjusted to vary an amount of compression of actuation structure 120 configured to curve flexible housing tube 200 to a particular curved position.
- a stiffness of flexible housing tube 200 may be adjusted to vary an amount of compression of actuation structure 120 configured to curve flexible housing tube 200 to a particular curved position.
- a material comprising flexible housing tube 200 may be adjusted to vary an amount of compression of actuation structure 120 configured to curve flexible housing tube 200 to a particular curved position.
- a geometry of actuation structure 120 may be adjusted to vary an amount of compression of actuation structure 120 configured to curve flexible housing tube 200 to a particular curved position.
- one or more locations within flexible housing tube 200 wherein optic fiber 210 may be fixed to a portion of flexible housing tube 200 may be adjusted to vary an amount of compression of actuation structure 120 configured to curve flexible housing tube 200 to a particular curved position.
- optic fiber 210 may be enclosed in an optic fiber sleeve configured to, e.g., protect optic fiber 210 , vary a stiffness of optic fiber 210 , vary an optical property of optic fiber 210 , etc.
- optic fiber 210 may comprise a buffer, a cladding disposed in the buffer, and a core disposed in the cladding.
- at least a portion of optic fiber 210 may comprise a buffer configured to protect an optical property of optic fiber 210 .
- At least a portion of optic fiber 210 may comprise a buffer configured to protect an optical layer of optic fiber 210 , e.g., the buffer may protect an optical layer of a curved portion of optic fiber 210 .
- at least a portion of optic fiber 210 may comprise a polyimide buffer configured to protect an optical property of optic fiber 210 .
- at least a portion of optic fiber 210 may comprise a Kapton buffer configured to protect an optical property of optic fiber 210 .
- a steerable laser probe may be configured to indicate, e.g., to a surgeon, a direction that optic fiber 210 may curve, e.g., due to a compression of actuation structure 120 .
- a portion of a steerable laser probe e.g., handle 600
- a portion of handle 600 may comprise an arrow marking configured to indicate a direction that optic fiber 210 may curve.
- a portion of flexible housing tube 200 may comprise a mark configured to indicate a direction that optic fiber 210 may curve.
- flexible housing tube 200 may comprise a slight curve, e.g., a curve less than 7.5 degrees, when actuation structure 120 is fully decompressed.
- flexible housing tube 200 may comprise a slight curve, e.g., a curve equal to or greater than 7.5 degrees, when actuation structure 120 is fully decompressed.
- flexible housing tube 200 may comprise a slight curve configured to indicate a direction that optic fiber 210 may curve, e.g., due to a compression of actuation structure 120 .
- a location wherein cable 710 may be fixed to flexible housing tube 200 may be adjusted to vary an amount of compression of actuation structure 120 configured to curve flexible housing tube 200 to a particular curved position.
- a portion of cable 710 may be fixed to an outer portion of flexible housing tube 200 .
- cable 710 may be fixed to flexible housing tube 200 at a plurality of fixation points, e.g., to vary one or more properties of a steerable laser probe.
- a length of cable 710 may be adjusted to vary an amount of compression of actuation structure 120 configured to curve flexible housing tube 200 to a particular curved position.
- a steerable laser probe may comprise one or more redundant cables 710 .
- one or more redundant cables 710 may be configured to maintain a particular curved position of flexible housing tube 200 , e.g., in the event that cable 710 breaks or fails.
- one or more redundant cables 710 may be configured to maintain a particular curved position of flexible housing tube 200 , e.g., in the event that a cable 710 fixation means fails.
- one or more redundant cables 710 may be configured to maintain a particular curved position of flexible housing tube 200 , e.g., in the event that cable 710 is no longer configured to maintain the particular curved position of flexible housing tube 200 .
- one or more redundant cables 710 may be configured to maintain a particular curved position of flexible housing tube 200 wherein cable 710 is also configured to maintain the particular curved position of flexible housing tube 200 .
- flexible housing tube 200 may comprise an access window configured to allow access to a portion cable 710 .
- cable 710 may be fixed to a portion of flexible housing tube 200 , e.g., by looping a portion of cable 710 through an aperture in flexible housing tube 200 .
- cable 710 may be fixed to a portion of flexible housing tube 200 , e.g., by a purely mechanical means.
- cable 710 may be fixed to a portion of flexible housing tube 200 in a manner other than by an adhesive, a weld, etc.
- cable 710 may be fixed to a portion of flexible housing tube 200 wherein a portion of cable 710 is configured to fail at a first applied failure force and a fixation means that fixes a portion of cable 710 to a portion of flexible housing tube 200 is configured to fail at a second applied failure force.
- the second applied failure force may be greater than the first applied failure force.
- FIGS. 10A, 10B, 10C, 10D, and 10E are schematic diagrams illustrating a gradual straightening of an optic fiber 210 .
- FIG. 10A illustrates a fully curved optic fiber 1000 .
- optic fiber 210 may comprise a fully curved optic fiber 1000 , e.g., when actuation structure 120 is fully compressed.
- optic fiber 210 may comprise a fully curved optic fiber 1000 , e.g., when flexible housing tube 200 is fully extended relative to wire 710 .
- a line tangent to optic fiber distal end 211 may be parallel to a line tangent to flexible housing tube proximal end 202 , e.g., when optic fiber 210 comprises a fully curved optic fiber 1000 .
- FIG. 10B illustrates an optic fiber in a first partially straightened position 1010 .
- a decompression of actuation structure 120 may be configured to gradually straighten optic fiber 210 from a fully curved optic fiber 1000 to an optic fiber in a first partially straightened position 1010 .
- a decompression of actuation structure 120 may be configured to retract actuation structure distal end 121 relative to actuation structure proximal end 122 .
- a retraction of actuation structure distal end 121 relative to actuation structure proximal end 122 may be configured to retract flexible housing tube 200 relative to cable 710 .
- a portion of cable 710 may be configured to facilitate a retraction of flexible housing tube 200 relative to cable 710 .
- a retraction of flexible housing tube 200 relative to cable 710 may be configured to decompress a portion of flexible housing tube 200 .
- a decompression of a portion of flexible housing tube 200 may be configured to gradually straighten flexible housing tube 200 .
- a gradual straightening of flexible housing tube 200 may be configured to gradually straighten optic fiber 210 , e.g., from a fully curved optic fiber 1000 to an optic fiber in a first partially straightened position 1010 .
- a line tangent to optic fiber distal end 211 may intersect a line tangent to flexible housing tube proximal end 202 at a first partially straightened angle, e.g., when optic fiber 210 comprises an optic fiber in a first partially straightened position 1010 .
- the first partially straightened angle may comprise any angle less than 180 degrees.
- the first partially straightened angle may comprise a 135 degree angle.
- FIG. 10C illustrates an optic fiber in a second partially straightened position 1020 .
- a decompression of actuation structure 120 may be configured to gradually straighten optic fiber 210 from an optic fiber in a first partially straightened position 1010 to an optic fiber in a second partially straightened position 1020 .
- a decompression of actuation structure 120 may be configured to retract actuation structure distal end 121 relative to actuation structure proximal end 122 .
- a retraction of actuation structure distal end 121 relative to actuation structure proximal end 122 may be configured to retract flexible housing tube 200 relative to cable 710 .
- a portion of cable 710 may be configured to facilitate a retraction of flexible housing tube 200 relative to cable 710 .
- a retraction of flexible housing tube 200 relative to cable 710 may be configured to decompress a portion of flexible housing tube 200 .
- a decompression of a portion of flexible housing tube 200 may be configured to gradually straighten flexible housing tube 200 .
- a gradual straightening of flexible housing tube 200 may be configured to gradually straighten optic fiber 210 , e.g., from an optic fiber in a first partially straightened position 1010 to an optic fiber in a second partially straightened position 1020 .
- a line tangent to optic fiber distal end 211 may intersect a line tangent to flexible housing tube proximal end 202 at a second partially straightened angle, e.g., when optic fiber 210 comprises an optic fiber in a second partially straightened position 1020 .
- the second partially straightened angle may comprise any angle less than the first partially straightened angle.
- the second partially straightened angle may comprise a 90 degree angle.
- FIG. 10D illustrates an optic fiber in a third partially straightened position 1030 .
- a decompression of actuation structure 120 may be configured to gradually straighten optic fiber 210 from an optic fiber in a second partially straightened position 1020 to an optic fiber in a third partially straightened position 1030 .
- a decompression of actuation structure 120 may be configured to retract actuation structure distal end 121 relative to actuation structure proximal end 122 .
- a retraction of actuation structure distal end 121 relative to actuation structure proximal end 122 may be configured to retract flexible housing tube 200 relative to cable 710 .
- a portion of cable 710 may be configured to facilitate a retraction of flexible housing tube 200 relative to cable 710 .
- a retraction of flexible housing tube 200 relative to cable 710 may be configured to decompress a portion of flexible housing tube 200 .
- a decompression of a portion of flexible housing tube 200 may be configured to gradually straighten flexible housing tube 200 .
- a gradual straightening of flexible housing tube 200 may be configured to gradually straighten optic fiber 210 , e.g., from an optic fiber in a second partially straightened position 1020 to an optic fiber in a third partially straightened position 1030 .
- a line tangent to optic fiber distal end 211 may intersect a line tangent to flexible housing tube proximal end 202 at a third partially straightened angle, e.g., when optic fiber 210 comprises an optic fiber in a third partially straightened position 1030 .
- the third partially straightened angle may comprise any angle less than the second partially straightened angle.
- the third partially straightened angle may comprise a 45 degree angle.
- FIG. 10E illustrates an optic fiber in a fully straightened position 1040 .
- a decompression of actuation structure 120 may be configured to gradually straighten optic fiber 210 from an optic fiber in a third partially straightened position 1030 to an optic fiber in a fully straightened position 1040 .
- a decompression of actuation structure 120 may be configured to retract actuation structure distal end 121 relative to actuation structure proximal end 122 .
- a retraction of actuation structure distal end 121 relative to actuation structure proximal end 122 may be configured to retract flexible housing tube 200 relative to cable 710 .
- a portion of cable 710 may be configured to facilitate a retraction of flexible housing tube 200 relative to cable 710 .
- a retraction of flexible housing tube 200 relative to cable 710 may be configured to decompress a portion of flexible housing tube 200 .
- a decompression of a portion of flexible housing tube 200 may be configured to gradually straighten flexible housing tube 200 .
- a gradual straightening of flexible housing tube 200 may be configured to gradually straighten optic fiber 210 , e.g., from an optic fiber in a third partially straightened position 1030 to an optic fiber in a fully straightened position 1040 .
- a line tangent to optic fiber distal end 211 may be parallel to a line tangent to flexible housing tube proximal end 202 , e.g., when optic fiber 210 comprises an optic fiber in a fully straightened position 1040 .
- a surgeon may aim optic fiber distal end 211 at any of a plurality of targets within an eye, e.g., to perform a photocoagulation procedure, to illuminate a surgical target site, etc.
- a surgeon may aim optic fiber distal end 211 at any target within a particular transverse plane of the inner eye by, e.g., rotating handle 600 to orient flexible housing tube 200 in an orientation configured to cause a curvature of flexible housing tube 200 within the particular transverse plane of the inner eye and varying an amount of compression of actuation structure 120 .
- a surgeon may aim optic fiber distal end 211 at any target within a particular sagittal plane of the inner eye by, e.g., rotating handle 600 to orient flexible housing tube 200 in an orientation configured to cause a curvature of flexible housing tube 200 within the particular sagittal plane of the inner eye and varying an amount of compression of actuation structure 120 .
- a surgeon may aim optic fiber distal end 211 at any target within a particular frontal plane of the inner eye by, e.g., varying an amount of compression of actuation structure 120 to orient a line tangent to optic fiber distal end 211 wherein the line tangent to optic fiber distal end 211 is within the particular frontal plane of the inner eye and rotating handle 600 .
- a surgeon may aim optic fiber distal end 211 at any target located outside of the particular transverse plane, the particular sagittal plane, and the particular frontal plane of the inner eye, e.g., by varying a rotational orientation of handle 600 and varying an amount of compression of actuation structure 120 .
- a surgeon may aim optic fiber distal end 211 at any target of a plurality of targets within an eye, e.g., without increasing a length of a portion of a steerable laser probe within the eye.
- a surgeon may aim optic fiber distal end 211 at any target of a plurality of targets within an eye, e.g., without decreasing a length of a portion of a steerable laser probe within the eye.
Abstract
A steerable laser probe may include a handle, an actuation structure having an actuation structure distal end and an actuation structure proximal end, a flexible housing tube, and an optic fiber disposed within an inner bore of the handle and the flexible housing tube. An extension of the actuation structure distal end relative to the actuation structure proximal end may be configured to gradually curve the flexible housing tube and the optic fiber. A retraction of the actuation structure distal end relative to the actuation structure proximal end may be configured to gradually straighten the flexible housing tube and the optic fiber.
Description
- This Application is a continuation of prior application Ser. No. 14/027,997, filed Sep. 16, 2013.
- The present disclosure relates to a surgical instrument, and, more particularly, to a steerable laser probe.
- A wide variety of ophthalmic procedures require a laser energy source. For example, ophthalmic surgeons may use laser photocoagulation to treat proliferative retinopathy. Proliferative retinopathy is a condition characterized by the development of abnormal blood vessels in the retina that grow into the vitreous humor. Ophthalmic surgeons may treat this condition by energizing a laser to cauterize portions of the retina to prevent the abnormal blood vessels from growing and hemorrhaging.
- In order to increase the chances of a successful laser photocoagulation procedure, it is important that a surgeon is able aim the laser at a plurality of targets within the eye, e.g., by guiding or moving the laser from a first target to a second target within the eye. It is also important that the surgeon is able to easily control a movement of the laser. For example, the surgeon must be able to easily direct a laser beam by steering the beam to a first position aimed at a first target, guide the laser beam from the first position to a second position aimed at a second target, and hold the laser beam in the second position. Accordingly, there is a need for a surgical laser probe that can be easily guided to a plurality of targets within the eye.
- The present disclosure presents a steerable laser probe. In one or more embodiments, a steerable laser probe may comprise a handle, an actuation structure having an actuation structure distal end and an actuation structure proximal end, a flexible housing tube, and an optic fiber disposed within an inner bore of the handle and the flexible housing tube. Illustratively, a compression of the actuation structure may be configured to extend the actuation structure distal end relative to the actuation structure proximal end. In one or more embodiments, an extension of the actuation structure distal end relative to the actuation structure proximal end may be configured to gradually curve the flexible housing tube and the optic fiber. Illustratively, a decompression of the actuation structure may be configured to retract the actuation structure distal end relative to the actuation structure proximal end. In one or more embodiments, a retraction of the actuation structure distal end relative to the actuation structure proximal end may be configured to gradually straighten the flexible housing tube and the optic fiber.
- The above and further advantages of the present invention may be better understood by referring to the following description in conjunction with the accompanying drawings in which like reference numerals indicate identical or functionally similar elements:
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FIGS. 1A and 1B are schematic diagrams illustrating a handle; -
FIG. 2 is a schematic diagram illustrating a flexible housing tube; -
FIG. 3 is a schematic diagram illustrating an exploded view of a steerable laser probe assembly; -
FIGS. 4A, 4B, 4C, 4D, and 4E are schematic diagrams illustrating a gradual curving of an optic fiber; -
FIGS. 5A, 5B, 5C, 5D, and 5E are schematic diagrams illustrating a gradual straightening of an optic fiber; -
FIGS. 6A and 6B are schematic diagrams illustrating a handle; -
FIG. 7 is a schematic diagram illustrating a flexible housing tube; -
FIG. 8 is a schematic diagram illustrating an exploded view of a steerable laser probe assembly; -
FIGS. 9A, 9B, 9C, 9D, and 9E are schematic diagrams illustrating a gradual curving of an optic fiber; -
FIGS. 10A, 10B, 10C, 10D, and 10E are schematic diagrams illustrating a gradual straightening of an optic fiber. -
FIGS. 1A and 1B are schematic diagrams illustrating ahandle 100.FIG. 1A illustrates a top view of ahandle 100. Illustratively,handle 100 may comprise a handledistal end 101, a handleproximal end 102, ahandle end plug 110, a fixation mechanism housing 115, and anactuation structure 120 having an actuation structuredistal end 121 and an actuation structureproximal end 122. In one or more embodiments,actuation structure 120 may comprise a plurality ofactuation arms 125. Illustratively, eachactuation arm 125 of a plurality ofactuation arms 125 may comprise one ormore extension joints 126. In one or more embodiments, an application of a force toactuation structure 120 may be configured to compressactuation structure 120. For example, a surgeon may compressactuation structure 120 by applying a force to a portion ofactuation structure 120. Illustratively, an application of a force to a portion of anactuation arm 125 of a plurality ofactuation arms 125 may be configured to compressactuation structure 120. For example, a surgeon may compressactuation structure 120 by applying a force to a portion of anactuation arm 125 of a plurality ofactuation arms 125. - In one or more embodiments,
actuation structure 120 may be compressed by an application of one or more forces at one or more locations around an outer perimeter ofactuation structure 120. Illustratively, the one or more locations may comprise any of a plurality of locations around the outer perimeter ofactuation structure 120. For example, a surgeon may compressactuation structure 120 by squeezingactuation structure 120. Illustratively, the surgeon may compressactuation structure 120 by squeezingactuation structure 120 at any particular location of a plurality of locations around an outer perimeter ofactuation structure 120. For example, a surgeon may rotatehandle 100 and compressactuation structure 120 in any rotational orientation of a plurality of rotational orientations ofhandle 100. - In one or more embodiments, a compression of
actuation structure 120 may be configured to increase a distance between actuation structuredistal end 121 and actuation structureproximal end 122. Illustratively, a compression ofactuation structure 120 may be configured to extend actuation structuredistal end 121 relative to actuation structureproximal end 122. In one or more embodiments, an application of a force having a magnitude in a range of 0.6 to 1.6 pounds to a portion ofactuation structure 120 may be conic) figured to compressactuation structure 120, e.g., an application of a force having a magnitude of 1.1 pounds to a portion ofactuation structure 120 may be configured to compressactuation structure 120. Illustratively, an application of a force having a magnitude less than 0.6 pounds or greater than 1.6 pounds to a portion ofactuation structure 120 may be configured to compressactuation structure 120. In one or more embodiments, a compression ofactuation structure 120 may be configured to extend actuation structuredistal end 121 in a range of 0.02 to 0.06 inches relative to actuation structureproximal end 122. Illustratively, a compression ofactuation structure 120 may be configured to extend actuation structuredistal end 121 less than 0.02 inches or greater than 0.06 inches relative to actuation structureproximal end 122. In one or more embodiments, a compression ofactuation structure 120 may be configured to increase a distance between actuation structuredistal end 121 and actuation structureproximal end 122 in a range of 0.5 to 2.5 percent. Illustratively, a compression ofactuation structure 120 may be configured to increase a distance between actuation structuredistal end 121 and actuation structureproximal end 122 by less than 0.5 percent or greater than 2.5 percent. In one or more embodiments, a compression ofactuation structure 120 may be configured to increase a distance between handledistal end 101 and handleproximal end 102. Illustratively, a compression ofactuation structure 120 may be configured to extend handledistal end 101 relative to handleproximal end 102. In one or more embodiments, a compression ofactuation structure 120 may be configured to expand anextension joint 126 of aparticular actuation arm 125 of a plurality ofactuation arms 125. Illustratively, an expansion of anextension joint 126 of aparticular actuation arm 125 may be configured to extend theparticular actuation arm 125, e.g., by increasing a distance between a distal end of theparticular actuation arm 125 and a proximal end of theparticular actuation arm 125. In one or more embodiments, an expansion of anextension joint 126 of aparticular actuation arm 125 may be configured to extend a distal end of theparticular arm 125 relative to actuation structureproximal end 122. Illustratively, an expansion of anextension joint 126 of aparticular actuation arm 125 may be configured to expand anextension joint 126 of eachactuation arm 125 of a plurality ofactuation arms 125. In one or more embodiments, an expansion of anextension joint 126 of aparticular actuation arm 125 may be configured to extend actuation structuredistal end 121 relative to actuation structureproximal end 122. Illustratively, an expansion of anextension joint 126 of aparticular actuation arm 125 may be configured to extend handledistal end 101 relative to handleproximal end 102. In one or more embodiments, a compression ofactuation structure 120 may be configured to expand a plurality of extension joints 126 of aparticular actuation arm 125. Illustratively, an expansion of a plurality of extension joints 126 of aparticular actuation arm 125 may be configured to expand a plurality of extension joints 126 of eachactuation arm 125 of a plurality of actuation arms. In one or more embodiments, an expansion of a plurality of extension joints 126 of aparticular actuation arm 125 may be configured to extend actuation structuredistal end 121 relative to actuation structureproximal end 122. Illustratively, an expansion of a plurality of extension joints 126 of aparticular actuation arm 125 may be configured to extend handledistal end 101 relative to handleproximal end 102. - In one or more embodiments, a decompression of
actuation structure 120 may be configured to decrease a distance between actuation structuredistal end 121 and actuation structureproximal end 122. Illustratively, a decompression ofactuation structure 120 may be configured to retract actuation structuredistal end 121 relative to actuation structureproximal end 122. In one or more embodiments, a removal of a force having a magnitude in a range of 0.6 to 1.6 pounds from a portion ofactuation structure 120 may be configured to decompressactuation structure 120, e.g., a removal of a force having a magnitude of 1.1 pounds from a portion ofactuation structure 120 may be configured to decompressactuation structure 120. Illustratively, a removal of a force having a magnitude less than 0.6 pounds or greater than 1.6 pounds from a portion ofactuation structure 120 may be configured to decompressactuation structure 120. In one or more embodiments, a decompression ofactuation structure 120 may be configured to retract actuation structuredistal end 121 in a range of 0.02 to 0.06 inches relative to actuation structureproximal end 122. Illustratively, a decompression ofactuation structure 120 may be cons figured to retract actuation structuredistal end 121 less than 0.02 inches or greater than 0.06 inches relative to actuation structureproximal end 122. In one or more embodiments, a decompression ofactuation structure 120 may be configured to decrease a distance between actuation structuredistal end 121 and actuation structureproximal end 122 in a range of 0.5 to 2.5 percent. Illustratively, a decompression ofactuation structure 120 may be configured to decrease a distance between actuation structuredistal end 121 and actuation structureproximal end 122 by less than 0.5 percent or greater than 2.5 percent. In one or more embodiments, a decompression ofactuation structure 120 may be configured to decrease a distance between handledistal end 101 and handleproximal end 102. Illustratively, a decompression ofactuation structure 120 may be configured to retract handledistal end 101 relative to handleproximal end 102. In one or more embodiments, a decompression ofactuation structure 120 may be configured to collapse anextension joint 126 of aparticular actuation arm 125 of a plurality ofactuation arms 125. Illustratively, a collapse of anextension joint 126 of aparticular actuation arm 125 may be configured to retract theparticular actuation arm 125, e.g., by decreasing a distance between a distal end of theparticular actuation arm 125 and a proximal end of theparticular actuation arm 125. In one or more embodiments, a collapse of anextension joint 126 of aparticular actuation arm 125 may be configured to retract a distal end of theparticular arm 125 relative to actuation structureproximal end 122. Illustratively, a collapse of anextension joint 126 of aparticular actuation arm 125 may be configured to collapse anextension joint 126 of eachactuation arm 125 of a plurality ofactuation arms 125. In one or more embodiments, a collapse of anextension joint 126 of aparticular actuation arm 125 may be configured to retract actuation structuredistal end 121 relative to actuation structureproximal end 122. Illustratively, a collapse of anextension joint 126 of aparticular actuation arm 125 may be configured to retract handledistal end 101 relative to handleproximal end 102. In one or more embodiments, a decompression ofactuation structure 120 may be configured to collapse a plurality of extension joints 126 of aparticular actuation arm 125. Illustratively, a collapse of a plurality of extension joints 126 of aparticular actuation arm 125 may be configured to collapse a plurality of extension joints 126 of eachactuation arm 125 of a plurality of actuation arms. In one or more embodiments, a collapse of a plurality of extension joints 126 of aparticular actuation arm 125 may be configured to retract actuation structuredistal end 121 relative to actuation structureproximal end 122. Illustratively, a collapse of a plurality of extension joints 126 of aparticular actuation arm 125 may be configured to retract handledistal end 101 relative to handleproximal end 102. - In one or more embodiments,
actuation structure 120 may be manufactured from any suitable material, e.g., polymers, metals, metal alloys, etc., or from any combination of suitable materials. Illustratively,actuation structure 120 may be manufactured from a shape memory material. In one or more embodiments,actuation structure 120 may be manufactured using a selective laser sintering machine. Illustratively,actuation structure 100 may be manufactured by additive manufacturing or 3D printing. In one or more embodiments,actuation structure 120 may be manufactured from a material suitable for sterilization by a medical autoclave. Illustratively,actuation structure 120 may be manufactured from a material, e.g., Nylon, configured to withstand exposure to temperatures, pressures, and ambient conditions present in a medical autoclave without degradation. For example,actuation structure 120 may be configured to function normally after exposure in a temperature 250° F. for 15 minutes at an atmospheric pressure of 15 psi. In one or more embodiments,actuation structure 120 may be configured to be used in a surgical procedure and then sterilized by a medical autoclave at least three times. Illustratively,actuation structure 120 may be configured to be used in a surgical procedure and then sterilized by a medical autoclave more than three times. - In one or more embodiments,
actuation structure 120 may have a density in a range of 0.02 to 0.06 pounds per cubic inch, e.g.,actuation structure 120 may have a density of 0.041 pounds per cubic inch. Illustratively,actuation structure 120 may have a density less than 0.02 pounds per cubic inch or greater than 0.06 pounds per cubic inch. In one or more embodiments,actuation structure 120 may have a mass in a range of 0.01 to 0.03 pounds, e.g.,actuation structure 120 may have a mass of 0.024 pounds. Illustratively,actuation structure 120 may have a mass less than 0.01 pounds or greater than 0.03 pounds. In one or more embodiments,actuation structure 120 may have a volume in a range of 0.3 to 0.7 cubic inches, e.g.,actuation structure 120 may have a volume of 0.577 cubic inches. Illustratively,actuation structure 120 may have a volume less than 0.3 cubic inches or greater than 0.7 cubic inches. In one or more embodiments,actuation structure 120 may have a surface area in a range of 10.0 to 20.0 square inches, e.g.,actuation structure 120 may have a surface area of 14.87 square inches. Illustratively,actuation structure 120 may have a surface area less than 10.0 square inches or greater than 20.0 square inches. -
FIG. 1B illustrates a cross-sectional view of ahandle 100. Illustratively, handle 100 may comprise aninner bore 140, anoptic fiber housing 145, and a flexiblehousing tube housing 150. In one or more embodiments, handle 100 may be manufactured from any suitable material, e.g., polymers, metals, metal alloys, etc., or from any combination of suitable materials. -
FIG. 2 is a schematic diagram illustrating aflexible housing tube 200. Illustratively,flexible housing tube 200 may comprise a flexible housing tubedistal end 201 and a flexible housing tubeproximal end 202.Flexible housing tube 200 may be manufactured from any suitable material, e.g., polymers, metals, metal alloys, etc., or from any combination of suitable materials. Illustratively,flexible housing tube 200 may comprise a shape memory material, e.g., Nitinol. In one or more embodiments,flexible housing tube 200 may be manufactured from a material having an ultimate tensile strength in a range of 700 to 1000 MPa. Illustratively,flexible housing tube 200 may be manufactured from a material having ultimate tensile strength less than 700 MPa or greater than 1000 MPa. In one or more embodiments,flexible housing tube 200 may be manufactured from a material having a modulus of elasticity in a range of 30 to 80 GPa. Illustratively,flexible housing tube 200 may be manufactured from a material having a modulus of elasticity less than 30 GPa or greater than 80 GPa. - In one or more embodiments,
flexible housing tube 200 may be manufactured with dimensions suitable for performing microsurgical procedures, e.g., ophthalmic surgical procedures. Illustratively,flexible housing tube 200 may be manufactured at gauge sizes commonly used in ophthalmic surgical procedures, e.g., 23 gauge, 25 gauge, etc. In one or more embodiments,flexible housing tube 200 may be configured to be inserted in a cannula, e.g., a cannula used during an ophthalmic surgical procedure. For example, one or more properties offlexible housing tube 200 may be optimized to reduce friction asflexible housing tube 200 is inserted into a cannula. In one or more embodiments, one or more properties offlexible housing tube 200 may be optimized to reduce friction asflexible housing tube 200 is removed from a cannula. Illustratively,flexible housing tube 200 may have an ultimate tensile strength in a range of 1000 to 1100 MPa. In one or more embodiments,flexible housing tube 200 may have an ultimate tensile strength less than 1000 MPa or greater than 1100 MPa. - In one or more embodiments, an
optic fiber 210 may be disposed withinflexible housing tube 200. Illustratively,optic fiber 210 may comprise an optic fiberdistal end 211 and an optic fiberproximal end 212. In one or more embodiments,optic fiber 210 may be configured to transmit light, e.g., laser light. Illustratively,optic fiber 210 may be disposed withinflexible housing tube 200 wherein optic fiberdistal end 211 may be adjacent to flexible housing tubedistal end 201. In one or more embodiments, a portion ofoptic fiber 210 may be fixed to a portion offlexible housing tube 200, e.g., by an adhesive or any suitable fixation means. -
FIG. 3 is a schematic diagram illustrating an exploded view of a steerablelaser probe assembly 300. In one or more embodiments, a steerablelaser probe assembly 300 may comprise ahandle 100, aflexible housing tube 200 having a flexible housing tubedistal end 201 and a flexible housing tubeproximal end 202, anoptic fiber 210 having an optic fiberdistal end 211 and an optic fiberproximal end 212, afixation mechanism 310, and alight source interface 320. Illustratively,light source interface 320 may be configured to interface withoptic fiber 210, e.g., at optic fiberproximal end 212. In one or more embodiments,light source interface 320 may comprise a standard light source connecter, e.g., an SMA connector. - Illustratively, a portion of
flexible housing tube 200 may be fixed to a portion ofhandle 100, e.g., flexible housing tubeproximal end 202 may be fixed to handledistal end 101. In one or more embodiments, a portion offlexible housing tube 200 may be fixed to a portion ofhandle 100, e.g., by an adhesive or any suitable fixation means. Illustratively, a portion offlexible housing tube 200 may be disposed within flexiblehousing tube housing 150, e.g., flexible housing tubeproximal end 202 may be disposed within flexiblehousing tube housing 150. In one or more embodiments, a portion offlexible housing tube 200 may be fixed within flexiblehousing tube housing 150, e.g., by an adhesive or any suitable fixation means. For example,flexible housing tube 200 may be fixed within flexiblehousing tube housing 150 by a press fit, a weld, a setscrew, etc. - Illustratively,
optic fiber 210 may be disposed withininner bore 140,optic fiber housing 145, flexiblehousing tube housing 150, andflexible housing tube 200. In one or more embodiments,optic fiber 210 may be disposed withinflexible housing tube 200 wherein optic fiberdistal end 211 may be adjacent to flexible housing tubedistal end 201. In one or more embodiments, a portion ofoptic fiber 210 may be fixed to a portion offlexible housing tube 200, e.g., by an adhesive or any suitable fixation means. Illustratively, a portion ofoptic fiber 210 may be fixed withinoptic fiber housing 145, e.g., by an adhesive or any suitable fixation means. In one or more embodiments,fixation mechanism 310 may be configured to fix a portion ofoptic fiber 210 withinoptic fiber housing 145, e.g.,fixation mechanism 310 may be disposed withinfixation mechanism housing 115 andoptic fiber housing 145. Illustratively,fixation mechanism 310 may be configured to fix a portion ofoptic fiber 210 withinoptic fiber housing 145, e.g., by a press fit or any suitable fixation means. In one or more embodiments,fixation mechanism 310 may comprise a set screw, e.g., configured to fix a portion ofoptic fiber 210 withinoptic fiber housing 145. - Illustratively, a compression of
actuation structure 120 may be configured to extend actuation structuredistal end 121 relative to actuation structureproximal end 122. In one or more embodiments, an extension of actuation structuredistal end 121 relative to actuation structureproximal end 122 may be configured to extend handledistal end 101 relative to handleproximal end 102. Illustratively, an extension of handledistal end 101 relative to handleproximal end 102 may be configured to extendflexible housing tube 200 relative to handleproximal end 102. In one or more embodiments, an extension offlexible housing tube 200 relative to handleproximal end 102 may be configured to extendflexible housing tube 200 relative tooptic fiber 210. Illustratively, a portion ofoptic fiber 210, e.g., a portion ofoptic fiber 210 fixed toflexible housing tube 200, may be configured to resist an extension offlexible housing tube 200 relative tooptic fiber 210. In one or more embodiments, an extension offlexible housing tube 200 relative tooptic fiber 210 may be configured to compress a portion offlexible housing tube 200, e.g., a portion ofoptic fiber 210 fixed to a portion offlexible housing tube 200 may be configured compress a portion offlexible housing tube 200. Illustratively, a compression of a portion offlexible housing tube 200 may be configured to causeflexible housing tube 200 to gradually curve. In one or more embodiments, a gradual curving offlexible housing tube 200 may be configured to gradually curveoptic fiber 210. Illustratively, a compression ofactuation structure 120 may be configured to gradually curveflexible housing tube 200. In one or more embodiments, a compression ofactuation structure 120 may be configured to gradually curveoptic fiber 210. - Illustratively, a decompression of
actuation structure 120 may be configured to retract actuation structuredistal end 121 relative to actuation structureproximal end 122. In one or more embodiments, a retraction of actuation structuredistal end 121 relative to actuation structureproximal end 122 may be configured to retract handledistal end 101 relative to handleproximal end 102. Illustratively, a retraction of handledistal end 101 relative to handleproximal end 102 may be configured to retractflexible housing tube 200 relative to handleproximal end 102. In one or more embodiments, a retraction offlexible housing tube 200 relative to handleproximal end 102 may be configured to retractflexible housing tube 200 relative tooptic fiber 210. Illustratively, a portion ofoptic fiber 210, e.g., a portion ofoptic fiber 210 fixed toflexible housing tube 200, may be configured to facilitate a retraction offlexible housing tube 200 relative tooptic fiber 210. In one or more embodiments, a retraction offlexible housing tube 200 relative tooptic fiber 210 may be configured to decompress a portion offlexible housing tube 200, e.g., a portion ofoptic fiber 210 fixed to a portion offlexible housing tube 200 may be configured decompress a portion offlexible housing tube 200. Illustratively, a decompression of a portion offlexible housing tube 200 may be configured to causeflexible housing tube 200 to gradually straighten. In one or more embodiments, a gradual straightening offlexible housing tube 200 may be configured to gradually straightenoptic fiber 210. Illustratively, a decompression ofactuation structure 120 may be configured to gradually straightenflexible housing tube 200. In one or more embodiments, a decompression ofactuation structure 120 may be configured to gradually straightenoptic fiber 210. -
FIGS. 4A, 4B, 4C, 4D, and 4E are schematic diagrams illustrating a gradual curving of anoptic fiber 210.FIG. 4A illustrates a straightoptic fiber 400. In one or more embodiments,optic fiber 210 may comprise a straightoptic fiber 400, e.g., whenactuation structure 120 is fully decompressed. Illustratively,optic fiber 210 may comprise a straightoptic fiber 400, e.g., whenflexible housing tube 200 is fully retracted relative tooptic fiber 210. Illustratively, a line tangent to optic fiberdistal end 211 may be parallel to a line tangent to flexible housing tubeproximal end 202, e.g., whenoptic fiber 210 comprises a straightoptic fiber 400. -
FIG. 4B illustrates an optic fiber in a firstcurved position 410. In one or more embodiments, a compression ofactuation structure 120 may be configured to gradually curveoptic fiber 210 from a straightoptic fiber 400 to an optic fiber in a firstcurved position 410. Illustratively, a compression ofactuation structure 120 may be configured to extend actuation structuredistal end 121 relative to actuation structureproximal end 122. In one or more embodiments, an extension of actuation structure distal 121 end relative to actuation structureproximal end 122 may be configured to extendflexible housing tube 200 relative tooptic fiber 210. Illustratively, an extension offlexible housing tube 200 relative tooptic fiber 210 may be configured to compress a portion offlexible housing tube 200. In one or more embodiments, a compression of a portion offlexible housing tube 200 may be configured to gradually curveflexible housing tube 200. Illustratively, a gradual curving offlexible housing tube 200 may be configured to gradually curveoptic fiber 210, e.g., from a straightoptic fiber 400 to an optic fiber in a firstcurved position 410. In one or more embodiments, a line tangent to optic fiberdistal end 211 may intersect a line tangent to flexible housing tubeproximal end 202 at a first angle, e.g., whenoptic fiber 210 comprises an optic fiber in a firstcurved position 410. In one or more embodiments, the first angle may comprise any angle greater than zero degrees. For example, the first angle may comprise a 45 degree angle. -
FIG. 4C illustrates an optic fiber in a secondcurved position 420. In one or more embodiments, a compression ofactuation structure 120 may be configured to gradually curveoptic fiber 210 from an optic fiber in a firstcurved position 410 to an optic fiber in a secondcurved position 420. Illustratively, a compression ofactuation structure 120 may be configured to extend actuation structuredistal end 121 relative to actuation structureproximal end 122. In one or more embodiments, an extension of actuation structure distal 121 end relative to actuation structureproximal end 122 may be configured to extendflexible housing tube 200 relative tooptic fiber 210. Illustratively, an extension offlexible housing tube 200 relative tooptic fiber 210 may be configured to compress a portion offlexible housing tube 200. In one or more embodiments, a compression of a portion offlexible housing tube 200 may be configured to gradually curveflexible housing tube 200. Illustratively, a gradual curving offlexible housing tube 200 may be configured to gradually curveoptic fiber 210, e.g., from an optic fiber in a firstcurved position 410 to an optic fiber in a secondcurved position 420. In one or more embodiments, a line tangent to optic fiberdistal end 211 may intersect a line tangent to flexible housing tubeproximal end 202 at a second angle, e.g., whenoptic fiber 210 comprises an optic fiber in a secondcurved position 420. In one or more embodiments, the second angle may comprise any angle greater than the first angle. For example, the second angle may comprise a 90 degree angle. -
FIG. 4D illustrates an optic fiber in a thirdcurved position 430. In one or more embodiments, a compression ofactuation structure 120 may be configured to gradually curveoptic fiber 210 from an optic fiber in a secondcurved position 420 to an optic fiber in a thirdcurved position 430. Illustratively, a compression ofactuation structure 120 may be configured to extend actuation structuredistal end 121 relative to actuation structureproximal end 122. In one or more embodiments, an extension of actuation structure distal 121 end relative to actuation structureproximal end 122 may be configured to extendflexible housing tube 200 relative tooptic fiber 210. Illustratively, an extension offlexible housing tube 200 relative tooptic fiber 210 may be configured to compress a portion offlexible housing tube 200. In one or more embodiments, a compression of a portion offlexible housing tube 200 may be configured to gradually curveflexible housing tube 200. Illustratively, a gradual curving offlexible housing tube 200 may be configured to gradually curveoptic fiber 210, e.g., from an optic fiber in a secondcurved position 420 to an optic fiber in a thirdcurved position 430. In one or more embodiments, a line tangent to optic fiberdistal end 211 may intersect a line tangent to flexible housing tubeproximal end 202 at a third angle, e.g., whenoptic fiber 210 comprises an optic fiber in a thirdcurved position 430. In one or more embodiments, the third angle may comprise any angle greater than the second angle. For example, the third angle may comprise a 135 degree angle. -
FIG. 4E illustrates an optic fiber in a fourthcurved position 440. In one or more embodiments, a compression ofactuation structure 120 may be configured to gradually curveoptic fiber 210 from an optic fiber in a thirdcurved position 430 to an optic fiber in a fourthcurved position 440. Illustratively, a compression ofactuation structure 120 may be configured to extend actuation structuredistal end 121 relative to actuation structureproximal end 122. In one or more embodiments, an extension of actuation structure distal 121 end relative to actuation structureproximal end 122 may be configured to extendflexible housing tube 200 relative tooptic fiber 210. Illustratively, an extension offlexible housing tube 200 relative tooptic fiber 210 may be configured to compress a portion offlexible housing tube 200. In one or more embodiments, a compression of a portion offlexible housing tube 200 may be configured to gradually curveflexible housing tube 200. Illustratively, a gradual curving offlexible housing tube 200 may be configured to gradually curveoptic fiber 210, e.g., from an optic fiber in a thirdcurved position 430 to an optic fiber in a fourthcurved position 440. In one or more embodiments, a line tangent to optic fiberdistal end 211 may be parallel to a line tangent to flexible housing tubeproximal end 202, e.g., whenoptic fiber 210 comprises an optic fiber in a fourthcurved position 440. - In one or more embodiments, one or more properties of a steerable laser probe may be adjusted to attain one or more desired steerable laser probe features. Illustratively, a length that flexible housing tube
distal end 201 extends from handledistal end 101 may be adjusted to vary an amount of compression ofactuation structure 120 configured to curveflexible housing tube 200 to a particular curved position. In one or more embodiments, a stiffness offlexible housing tube 200 may be adjusted to vary an amount of compression ofactuation structure 120 configured to curveflexible housing tube 200 to a particular curved position. Illustratively, a material comprisingflexible housing tube 200 may be adjusted to vary an amount of compression ofactuation structure 120 configured to curveflexible housing tube 200 to a particular curved position. In one or more embodiments, a geometry ofactuation structure 120 may be adjusted to vary an amount of compression ofactuation structure 120 configured to curveflexible housing tube 200 to a particular curved position. Illustratively, one or more locations withinflexible housing tube 200 whereinoptic fiber 210 may be fixed to a portion offlexible housing tube 200 may be adjusted to vary an amount of compression ofactuation structure 120 configured to curveflexible housing tube 200 to a particular curved position. - In one or more embodiments, at least a portion of
optic fiber 210 may be enclosed in an optic fiber sleeve configured to, e.g., protectoptic fiber 210, vary a stiffness ofoptic fiber 210, vary an optical property ofoptic fiber 210, etc. Illustratively, an optic fiber sleeve may be configured to compress a portion offlexible housing tube 200. In one or more embodiments, a portion of an optic fiber sleeve may be fixed withinoptic fiber housing 145, e.g., by an adhesive or any suitable fixation means. Illustratively, a portion of an optic fiber sleeve may be fixed to a portion offlexible housing tube 200, e.g., by an adhesive or any suitable fixation means. In one or more embodiments, a compression ofactuation structure 120 may be configured to extendflexible housing tube 200 relative to an optic fiber sleeve. Illustratively, a portion of an optic fiber sleeve, e.g., a portion of an optic fiber sleeve fixed to a portion offlexible housing tube 200, may be configured to resist an extension offlexible housing tube 200 relative to the optic fiber sleeve. In one or more embodiments, an extension offlexible housing tube 200 relative to an optic fiber sleeve may be configured to compress a portion offlexible housing tube 200. Illustratively, a compression of a portion offlexible housing tube 200 may be configured to gradually curveflexible housing tube 200. In one or more embodiments, a gradual curving offlexible housing tube 200 may be configured to gradually curveoptic fiber 210. - Illustratively,
optic fiber 210 may comprise a buffer, a cladding disposed in the buffer, and a core disposed in the cladding. In one or more embodiments, at least a portion ofoptic fiber 210 may comprise a buffer configured to protect an optical property ofoptic fiber 210. Illustratively, at least a portion ofoptic fiber 210 may comprise a buffer configured to protect an optical layer ofoptic fiber 210, e.g., the buffer may protect an optical layer of a curved portion ofoptic fiber 210. In one or more embodiments, at least a portion ofoptic fiber 210 may comprise a polyimide buffer configured to protect an optical property ofoptic fiber 210. For example, at least a portion ofoptic fiber 210 may comprise a Kapton buffer configured to protect an optical property ofoptic fiber 210. - Illustratively, a steerable laser probe may be configured to indicate, e.g., to a surgeon, a direction that
optic fiber 210 may curve, e.g., due to a compression ofactuation structure 120. In one or more embodiments, a portion of a steerable laser probe, e.g., handle 100, may be marked in a manner configured to indicate a direction thatoptic fiber 210 may curve. For example, a portion ofhandle 100 may comprise an arrow marking configured to indicate a direction thatoptic fiber 210 may curve. Illustratively, a portion offlexible housing tube 200 may comprise a mark configured to indicate a direction thatoptic fiber 210 may curve. In one or more embodiments,flexible housing tube 200 may comprise a slight curve, e.g., a curve less than 7.5 degrees, whenactuation structure 120 is fully decompressed. Illustratively,flexible housing tube 200 may comprise a slight curve, e.g., a curve equal to or greater than 7.5 degrees, whenactuation structure 120 is fully decompressed. In one or more embodiments,flexible housing tube 200 may comprise a slight curve configured to indicate a direction thatoptic fiber 210 may curve, e.g., due to a compression ofactuation structure 120. -
FIGS. 5A, 5B, 5C, 5D, and 5E are schematic diagrams illustrating a gradual straightening of anoptic fiber 210.FIG. 5A illustrates a fully curvedoptic fiber 500. In one or more embodiments,optic fiber 210 may comprise a fully curvedoptic fiber 500, e.g., whenactuation structure 120 is fully compressed. Illustratively,optic fiber 210 may comprise a fully curvedoptic fiber 500, e.g., whenflexible housing tube 200 is fully extended relative tooptic fiber 210. In one or more embodiments, a line tangent to optic fiberdistal end 211 may be parallel to a line tangent to flexible housing tubeproximal end 202, e.g., whenoptic fiber 210 comprises a fully curvedoptic fiber 500. -
FIG. 5B illustrates an optic fiber in a first partially straightenedposition 510. In one or more embodiments, a decompression ofactuation structure 120 may be configured to gradually straightenoptic fiber 210 from a fully curvedoptic fiber 500 to an optic fiber in a first partially straightenedposition 510. Illustratively, a decompression ofactuation structure 120 may be configured to retract actuation structuredistal end 121 relative to actuation structureproximal end 122. In one or more embodiments, a retraction of actuation structuredistal end 121 relative to actuation structureproximal end 122 may be configured to retractflexible housing tube 200 relative tooptic fiber 210. Illustratively, a portion ofoptic fiber 210, e.g., a portion ofoptic fiber 210 fixed to a portion offlexible housing tube 200, may be configured to facilitate a retraction offlexible housing tube 200 relative tooptic fiber 210. In one or more embodiments, a retraction offlexible housing tube 200 relative tooptic fiber 210 may be configured to decompress a portion offlexible housing tube 200. Illustratively, a decompression of a portion offlexible housing tube 200 may be configured to gradually straightenflexible housing tube 200. In one or more embodiments, a gradual straightening offlexible housing tube 200 may be configured to gradually straightenoptic fiber 210, e.g., from a fully curvedoptic fiber 500 to an optic fiber in a first partially straightenedposition 510. Illustratively, a line tangent to optic fiberdistal end 211 may intersect a line tangent to flexible housing tubeproximal end 202 at a first partially straightened angle, e.g., whenoptic fiber 210 comprises an optic fiber in a first partially straightenedposition 510. In one or more embodiments, the first partially straightened angle may comprise any angle less than 180 degrees. For example, the first partially straightened angle may comprise a 135 degree angle. -
FIG. 5C illustrates an optic fiber in a second partially straightenedposition 520. In one or more embodiments, a decompression ofactuation structure 120 may be configured to gradually straightenoptic fiber 210 from an optic fiber in a first partially straightenedposition 510 to an optic fiber in a second partially straightenedposition 520. Illustratively, a decompression ofactuation structure 120 may be configured to retract actuation structuredistal end 121 relative to actuation structureproximal end 122. In one or more embodiments, a retraction of actuation structuredistal end 121 relative to actuation structureproximal end 122 may be configured to retractflexible housing tube 200 relative tooptic fiber 210. Illustratively, a portion ofoptic fiber 210, e.g., a portion ofoptic fiber 210 fixed to a portion offlexible housing tube 200, may be configured to facilitate a retraction offlexible housing tube 200 relative tooptic fiber 210. In one or more embodiments, a retraction offlexible housing tube 200 relative tooptic fiber 210 may be configured to decompress a portion offlexible housing tube 200. Illustratively, a decompression of a portion offlexible housing tube 200 may be configured to gradually straightenflexible housing tube 200. In one or more embodiments, a gradual straightening offlexible housing tube 200 may be configured to gradually straightenoptic fiber 210, e.g., from an optic fiber in a first partially straightenedposition 510 to an optic fiber in a second partially straightenedposition 520. Illustratively, a line tangent to optic fiberdistal end 211 may intersect a line tangent to flexible housing tubeproximal end 202 at a second partially straightened angle, e.g., whenoptic fiber 210 comprises an optic fiber in a second partially straightenedposition 520. In one or more embodiments, the second partially straightened angle may comprise any angle less than the first partially straightened angle. For example, the second partially straightened angle may comprise a 90 degree angle. -
FIG. 5D illustrates an optic fiber in a third partially straightenedposition 530. In one or more embodiments, a decompression ofactuation structure 120 may be configured to gradually straightenoptic fiber 210 from an optic fiber in a second partially straightenedposition 520 to an optic fiber in a third partially straightenedposition 530. Illustratively, a decompression ofactuation structure 120 may be configured to retract actuation structuredistal end 121 relative to actuation structureproximal end 122. In one or more embodiments, a retraction of actuation structuredistal end 121 relative to actuation structureproximal end 122 may be configured to retractflexible housing tube 200 relative tooptic fiber 210. Illustratively, a portion ofoptic fiber 210, e.g., a portion ofoptic fiber 210 fixed to a portion offlexible housing tube 200, may be configured to facilitate a retraction offlexible housing tube 200 relative tooptic fiber 210. In one or more embodiments, a retraction offlexible housing tube 200 relative tooptic fiber 210 may be configured to decompress a portion offlexible housing tube 200. Illustratively, a decompression of a portion offlexible housing tube 200 may be configured to gradually straightenflexible housing tube 200. In one or more embodiments, a gradual straightening offlexible housing tube 200 may be configured to gradually straightenoptic fiber 210, e.g., from an optic fiber in a second partially straightenedposition 520 to an optic fiber in a third partially straightenedposition 530. Illustratively, a line tangent to optic fiberdistal end 211 may intersect a line tangent to flexible housing tubeproximal end 202 at a third partially straightened angle, e.g., whenoptic fiber 210 comprises an optic fiber in a third partially straightenedposition 530. In one or more embodiments, the third partially straightened angle may comprise any angle less than the second partially straightened angle. For example, the third partially straightened angle may comprise a 45 degree angle. -
FIG. 5E illustrates an optic fiber in a fully straightenedposition 540. In one or more embodiments, a decompression ofactuation structure 120 may be configured to gradually straightenoptic fiber 210 from an optic fiber in a third partially straightenedposition 530 to an optic fiber in a fully straightenedposition 540. Illustratively, a decompression ofactuation structure 120 may be configured to retract actuation structuredistal end 121 relative to actuation structureproximal end 122. In one or more embodiments, a retraction of actuation structuredistal end 121 relative to actuation structureproximal end 122 may be configured to retractflexible housing tube 200 relative tooptic fiber 210. Illustratively, a portion ofoptic fiber 210, e.g., a portion ofoptic fiber 210 fixed to a portion offlexible housing tube 200, may be configured to facilitate a retraction offlexible housing tube 200 relative tooptic fiber 210. In one or more embodiments, a retraction offlexible housing tube 200 relative tooptic fiber 210 may be configured to decompress a portion offlexible housing tube 200. Illustratively, a decompression of a portion offlexible housing tube 200 may be configured to gradually straightenflexible housing tube 200. In one or more embodiments, a gradual straightening offlexible housing tube 200 may be configured to gradually straightenoptic fiber 210, e.g., from an optic fiber in a third partially straightenedposition 530 to an optic fiber in a fully straightenedposition 540. Illustratively, a line tangent to optic fiberdistal end 211 may be parallel to a line tangent to flexible housing tubeproximal end 202, e.g., whenoptic fiber 210 comprises an optic fiber in a fully straightenedposition 540. - Illustratively, a surgeon may aim optic fiber
distal end 211 at any of a plurality of targets within an eye, e.g., to perform a photocoagulation procedure, to illuminate a surgical target site, etc. In one or more embodiments, a surgeon may aim optic fiberdistal end 211 at any target within a particular transverse plane of the inner eye by, e.g.,rotating handle 100 to orientflexible housing tube 200 in an orientation configured to cause a curvature offlexible housing tube 200 within the particular transverse plane of the inner eye and varying an amount of compression ofactuation structure 120. Illustratively, a surgeon may aim optic fiberdistal end 211 at any target within a particular sagittal plane of the inner eye by, e.g.,rotating handle 100 to orientflexible housing tube 200 in an orientation configured to cause a curvature offlexible housing tube 200 within the particular sagittal plane of the inner eye and varying an amount of compression ofactuation structure 120. In one or more embodiments, a surgeon may aim optic fiberdistal end 211 at any target within a particular frontal plane of the inner eye by, e.g., varying an amount of compression ofactuation structure 120 to orient a line tangent to optic fiberdistal end 211 wherein the line tangent to optic fiberdistal end 211 is within the particular frontal plane of the inner eye androtating handle 100. Illustratively, a surgeon may aim optic fiberdistal end 211 at any target located outside of the particular transverse plane, the particular sagittal plane, and the particular frontal plane of the inner eye, e.g., by varying a rotational orientation ofhandle 100 and varying an amount of compression ofactuation structure 120. In one or more embodiments, a surgeon may aim optic fiberdistal end 211 at any target of a plurality of targets within an eye, e.g., without increasing a length of a portion of a steerable laser probe within the eye. Illustratively, a surgeon may aim optic fiberdistal end 211 at any target of a plurality of targets within an eye, e.g., without decreasing a length of a portion of a steerable laser probe within the eye. -
FIGS. 6A and 6B are schematic diagrams illustrating ahandle 600.FIG. 6A illustrates a top view of ahandle 600. Illustratively, handle 600 may comprise a handledistal end 601, a handleproximal end 602, ahandle end plug 610, afixation mechanism housing 615, and anactuation structure 120 having an actuation structuredistal end 121 and an actuation structureproximal end 122. In one or more embodiments,actuation structure 120 may comprise a plurality ofactuation arms 125. Illustratively, eachactuation arm 125 of a plurality ofactuation arms 125 may comprise one or more extension joints 126.FIG. 6B illustrates a cross-sectional view of ahandle 600. Illustratively, handle 600 may comprise aninner bore 640, acable housing 645, and a flexiblehousing tube housing 650. In one or more embodiments, handle 600 may be manufactured from any suitable material, e.g., polymers, metals, metal alloys, etc., or from any combination of suitable materials. -
FIG. 7 is a schematic diagram illustrating aflexible housing tube 200. Illustratively, anoptic fiber 210 may be disposed withinflexible housing tube 200. In one or more embodiments,optic fiber 210 may comprise an optic fiberdistal end 211 and an optic fiberproximal end 212. Illustratively,optic fiber 210 may be configured to transmit light, e.g., laser light, illumination light, etc. In one or more embodiments,optic fiber 210 may be disposed withinflexible housing tube 200 wherein optic fiberdistal end 211 may be adjacent to flexible housing tubedistal end 201. In one or more embodiments, a portion ofoptic fiber 210 may be fixed to an inner portion offlexible housing tube 200, e.g., by an adhesive or any suitable fixation means. Illustratively, acable 710 may be disposed withinflexible housing tube 200. In one or more embodiments,cable 710 may comprise a cabledistal end 711 and a cableproximal end 712. Illustratively,cable 710 may be disposed withinflexible housing tube 200 wherein cabledistal end 711 may be adjacent to flexible housing tubedistal end 201. Illustratively, a portion ofcable 710 may be fixed to a portion offlexible housing tube 200, e.g., by an adhesive or any suitable fixation means. For example, a portion ofcable 710 may be fixed toflexible housing tube 200 by a weld, a loop, a tie, etc. -
FIG. 8 is a schematic diagram illustrating an exploded view of a steerablelaser probe assembly 800. In one or more embodiments, a steerablelaser probe assembly 800 may comprise ahandle 600, aflexible housing tube 200 having a flexible housing tubedistal end 201 and a flexible housing tubeproximal end 202, anoptic fiber 210 having an optic fiberdistal end 211 and an optic fiberproximal end 212, acable 710 having a cabledistal end 711 and a cableproximal end 712, afixation mechanism 810, and alight source interface 320. Illustratively,light source interface 320 may be configured to intern face withoptic fiber 210, e.g., at optic fiberproximal end 212. In one or more embodiments,light source interface 320 may comprise a standard light source connecter, e.g., an SMA connector. - Illustratively, a portion of
flexible housing tube 200 may be fixed to a portion ofhandle 600, e.g., flexible housing tubeproximal end 202 may be fixed to handledistal end 601. In one or more embodiments, a portion offlexible housing tube 200 may be fixed to a portion ofhandle 600, e.g., by an adhesive or any suitable fixation means. Illustratively, a portion offlexible housing tube 200 may be disposed within flexiblehousing tube housing 650, e.g., flexible housing tubeproximal end 202 may be disposed within flexiblehousing tube housing 650. In one or more embodiments, a portion offlexible housing tube 200 may be fixed within flexiblehousing tube housing 650, e.g., by an adhesive or any suitable fixation means. For example,flexible housing tube 200 may be fixed within flexiblehousing tube housing 650 by a press fit, a weld, a setscrew, etc. - Illustratively,
optic fiber 210 may be disposed withininner bore 640, flexiblehousing tube housing 650, andflexible housing tube 200. In one or more embodiments,optic fiber 210 may be disposed withinflexible housing tube 200 wherein optic fiberdistal end 211 may be adjacent to flexible housing tubedistal end 201. In one or more embodiments, a portion ofoptic fiber 210 may be fixed to a portion offlexible housing tube 200, e.g., by an adhesive or any suitable fixation means. Illustratively,cable 710 may be disposed withincable housing 645,inner bore 640, flexiblehousing tube housing 650, andflexible housing tube 200. In one or more embodiments,cable 710 may be disposed withinflexible housing tube 200 wherein cabledistal end 711 may be adjacent to flexible housing tubedistal end 201. Illustratively, a portion ofcable 710 may be fixed to a portion offlexible housing tube 200, e.g., by an adhesive or any suitable fixation means. For example, a portion ofcable 710 may be fixed toflexible housing tube 200 by a weld, a loop, a tie, etc. Illustratively, a portion ofcable 710 may be fixed withincable housing 645, e.g., by an adhesive or any suitable fixation means. In one or more embodiments,fixation mechanism 810 may be configured to fix a portion ofcable 710 withincable housing 645, e.g.,fixation mechanism 810 may be disposed withinfixation mechanism housing 615 andcable housing 645. Illustratively,fixation mechanism 810 may be configured to fix a portion ofcable 710 withincable housing 645, e.g., by a press fit or any suitable fixation means. In one or more embodiments,fixation mechanism 810 may comprise a set screw, e.g., configured to fix a portion of cable withincable housing 645. - Illustratively, a compression of
actuation structure 120 may be configured to extend actuation structuredistal end 121 relative to actuation structureproximal end 122. In one or more embodiments, an extension of actuation structuredistal end 121 relative to actuation structureproximal end 122 may be configured to extend handledistal end 601 relative to handleproximal end 602. Illustratively, an extension of handledistal end 601 relative to handleproximal end 602 may be configured to extendflexible housing tube 200 relative to handleproximal end 602. In one or more embodiments, an extension offlexible housing tube 200 relative to handleproximal end 602 may be configured to extendflexible housing tube 200 relative tocable 710. Illustratively, a portion ofcable 710, e.g., a portion ofcable 710 fixed toflexible housing tube 200, may be configured to resist an extension offlexible housing tube 200 relative tocable 710. In one or more embodiments, an extension offlexible housing tube 200 relative tocable 710 may be configured to compress a portion offlexible housing tube 200, e.g., a portion ofcable 710 fixed to a portion offlexible housing tube 200 may be configured compress a portion offlexible housing tube 200. Illustratively, a compression of a portion offlexible housing tube 200 may be configured to causeflexible housing tube 200 to gradually curve. In one or more embodiments, a gradual curving offlexible housing tube 200 may be configured to gradually curveoptic fiber 210. Illustratively, a compression ofactuation structure 120 may be configured to gradually curveflexible housing tube 200. In one or more embodiments, a compression ofactuation structure 120 may be configured to gradually curveoptic fiber 210. - Illustratively, a decompression of
actuation structure 120 may be configured to retract actuation structuredistal end 121 relative to actuation structureproximal end 122. In one or more embodiments, a retraction of actuation structuredistal end 121 relative to actuation structureproximal end 122 may be configured to retract handledistal end 601 relative to handleproximal end 602. Illustratively, a retraction of handledistal end 601 relative to handleproximal end 602 may be configured to retractflexible housing tube 200 relative to handleproximal end 602. In one or more embodiments, a retraction offlexible housing tube 200 relative to handleproximal end 602 may be configured to retractflexible housing tube 200 relative tocable 710. Illustratively, a portion ofcable 710, e.g., a portion ofcable 710 fixed toflexible housing tube 200, may be configured to facilitate a retraction offlexible housing tube 200 relative tocable 710. In one or more embodiments, a retraction offlexible housing tube 200 relative tocable 710 may be configured to decompress a portion offlexible housing tube 200, e.g., a portion ofcable 710 fixed to a portion offlexible housing tube 200 may be configured decompress a portion offlexible housing tube 200. Illustratively, a decompression of a portion offlexible housing tube 200 may be configured to causeflexible housing tube 200 to gradually straighten. In one or more embodiments, a gradual straightening offlexible housing tube 200 may be configured to gradually straightenoptic fiber 210. Illustratively, a decompression ofactuation structure 120 may be configured to gradually straightenflexible housing tube 200. In one or more embodiments, a decompression ofactuation structure 120 may be configured to gradually straightenoptic fiber 210. -
FIGS. 9A, 9B, 9C, 9D, and 9E are schematic diagrams illustrating a gradual curving of anoptic fiber 210.FIG. 9A illustrates a straightoptic fiber 900. In one or more embodiments,optic fiber 210 may comprise a straightoptic fiber 900, e.g., whenactuation structure 120 is fully decompressed. Illustratively,optic fiber 210 may comprise a straightoptic fiber 900, e.g., whenflexible housing tube 200 is fully retracted relative tocable 710. Illustratively, a line tangent to optic fiberdistal end 211 may be parallel to a line tangent to flexible housing tubeproximal end 202, e.g., whenoptic fiber 210 comprises a straightoptic fiber 900. -
FIG. 9B illustrates an optic fiber in a firstcurved position 910. In one or more embodiments, a compression ofactuation structure 120 may be configured to gradually curveoptic fiber 210 from a straightoptic fiber 900 to an optic fiber in a firstcurved position 910. Illustratively, a compression ofactuation structure 120 may be configured to extend actuation structuredistal end 121 relative to actuation structureproximal end 122. In one or more embodiments, an extension of actuation structure distal 121 end relative to actuation structureproximal end 122 may be configured to extendflexible housing tube 200 relative tocable 710. Illustratively, an extension offlexible housing tube 200 relative tocable 710 may be configured to compress a portion offlexible housing tube 200. In one or more embodiments, a compression of a portion offlexible housing tube 200 may be configured to gradually curveflexible housing tube 200. Illustratively, a gradual curving offlexible housing tube 200 may be configured to gradually curveoptic fiber 210, e.g., from a straightoptic fiber 900 to an optic fiber in a firstcurved position 910. In one or more embodiments, a line tangent to optic fiberdistal end 211 may intersect a line tangent to flexible housing tubeproximal end 202 at a first angle, e.g., whenoptic fiber 210 comprises an optic fiber in a firstcurved position 910. In one or more embodiments, the first angle may comprise any angle greater than zero degrees. For example, the first angle may comprise a 45 degree angle. -
FIG. 9C illustrates an optic fiber in a secondcurved position 920. In one or more embodiments, a compression ofactuation structure 120 may be configured to gradually curveoptic fiber 210 from an optic fiber in a firstcurved position 910 to an optic fiber in a secondcurved position 920. Illustratively, a compression ofactuation structure 120 may be configured to extend actuation structuredistal end 121 relative to actuation structureproximal end 122. In one or more embodiments, an extension of actuation structure distal 121 end relative to actuation structureproximal end 122 may be configured to extendflexible housing tube 200 relative tocable 710. Illustratively, an extension offlexible housing tube 200 relative tocable 710 may be configured to compress a portion offlexible housing tube 200. In one or more embodiments, a compression of a portion offlexible housing tube 200 may be configured to gradually curveflexible housing tube 200. Illustratively, a gradual curving offlexible housing tube 200 may be configured to gradually curveoptic fiber 210, e.g., from an optic fiber in a firstcurved position 910 to an optic fiber in a secondcurved position 920. In one or more embodiments, a line tangent to optic fiberdistal end 211 may intersect a line tangent to flexible housing tubeproximal end 202 at a second angle, e.g., whenoptic fiber 210 comprises an optic fiber in a secondcurved position 920. In one or more embodiments, the second angle may comprise any angle greater than the first angle. For example, the second angle may comprise a 90 degree angle. -
FIG. 9D illustrates an optic fiber in a thirdcurved position 930. In one or more embodiments, a compression ofactuation structure 120 may be configured to gradually curveoptic fiber 210 from an optic fiber in a secondcurved position 920 to an optic fiber in a thirdcurved position 930. Illustratively, a compression ofactuation structure 120 may be configured to extend actuation structuredistal end 121 relative to actuation structureproximal end 122. In one or more embodiments, an extension of actuation structure distal 121 end relative to actuation structureproximal end 122 may be configured to extendflexible housing tube 200 relative tocable 710. Illustratively, an extension offlexible housing tube 200 relative tocable 710 may be configured to compress a portion offlexible housing tube 200. In one or more embodiments, a compression of a portion offlexible housing tube 200 may be configured to gradually curveflexible housing tube 200. Illustratively, a gradual curving offlexible housing tube 200 may be configured to gradually curveoptic fiber 210, e.g., from an optic fiber in a secondcurved position 920 to an optic fiber in a thirdcurved position 930. In one or more embodiments, a line tangent to optic fiberdistal end 211 may intersect a line tangent to flexible housing tubeproximal end 202 at a third angle, e.g., whenoptic fiber 210 comprises an optic fiber in a thirdcurved position 930. In one or more embodiments, the third angle may comprise any angle greater than the second angle. For example, the third angle may comprise a 135 degree angle. -
FIG. 9E illustrates an optic fiber in a fourthcurved position 940. In one or more embodiments, a compression ofactuation structure 120 may be configured to gradually curveoptic fiber 210 from an optic fiber in a thirdcurved position 930 to an optic fiber in a fourthcurved position 940. Illustratively, a compression ofactuation structure 120 may be configured to extend actuation structuredistal end 121 relative to actuation structureproximal end 122. In one or more embodiments, an extension of actuation structure distal 121 end relative to actuation structureproximal end 122 may be configured to extendflexible housing tube 200 relative tocable 710. Illustratively, an extension offlexible housing tube 200 relative tocable 710 may be configured to compress a portion offlexible housing tube 200. In one or more embodiments, a compression of a portion offlexible housing tube 200 may be configured to gradually curveflexible housing tube 200. Illustratively, a gradual curving offlexible housing tube 200 may be configured to gradually curveoptic fiber 210, e.g., from an optic fiber in a thirdcurved position 930 to an optic fiber in a fourthcurved position 940. In one or more embodiments, a line tangent to optic fiberdistal end 211 may be parallel to a line tangent to flexible housing tubeproximal end 202, e.g., whenoptic fiber 210 comprises an optic fiber in a fourthcurved position 940. - In one or more embodiments, one or more properties of a steerable laser probe may be adjusted to attain one or more desired steerable laser probe features. Illustratively, a length that flexible housing tube
distal end 201 extends from handledistal end 601 may be adjusted to vary an amount of compression ofactuation structure 120 configured to curveflexible housing tube 200 to a particular curved position. In one or more embodiments, a stiffness offlexible housing tube 200 may be adjusted to vary an amount of compression ofactuation structure 120 configured to curveflexible housing tube 200 to a particular curved position. Illustratively, a material comprisingflexible housing tube 200 may be adjusted to vary an amount of compression ofactuation structure 120 configured to curveflexible housing tube 200 to a particular curved position. In one or more embodiments, a geometry ofactuation structure 120 may be adjusted to vary an amount of compression ofactuation structure 120 configured to curveflexible housing tube 200 to a particular curved position. Illustratively, one or more locations withinflexible housing tube 200 whereinoptic fiber 210 may be fixed to a portion offlexible housing tube 200 may be adjusted to vary an amount of compression ofactuation structure 120 configured to curveflexible housing tube 200 to a particular curved position. - In one or more embodiments, at least a portion of
optic fiber 210 may be enclosed in an optic fiber sleeve configured to, e.g., protectoptic fiber 210, vary a stiffness ofoptic fiber 210, vary an optical property ofoptic fiber 210, etc. Illustratively,optic fiber 210 may comprise a buffer, a cladding disposed in the buffer, and a core disposed in the cladding. In one or more embodiments, at least a portion ofoptic fiber 210 may comprise a buffer configured to protect an optical property ofoptic fiber 210. Illustratively, at least a portion ofoptic fiber 210 may comprise a buffer configured to protect an optical layer ofoptic fiber 210, e.g., the buffer may protect an optical layer of a curved portion ofoptic fiber 210. In one or more embodiments, at least a portion ofoptic fiber 210 may comprise a polyimide buffer configured to protect an optical property ofoptic fiber 210. For example, at least a portion ofoptic fiber 210 may comprise a Kapton buffer configured to protect an optical property ofoptic fiber 210. - Illustratively, a steerable laser probe may be configured to indicate, e.g., to a surgeon, a direction that
optic fiber 210 may curve, e.g., due to a compression ofactuation structure 120. In one or more embodiments, a portion of a steerable laser probe, e.g., handle 600, may be marked in a manner configured to indicate a direction thatoptic fiber 210 may curve. For example, a portion ofhandle 600 may comprise an arrow marking configured to indicate a direction thatoptic fiber 210 may curve. Illustratively, a portion offlexible housing tube 200 may comprise a mark configured to indicate a direction thatoptic fiber 210 may curve. In one or more embodiments,flexible housing tube 200 may comprise a slight curve, e.g., a curve less than 7.5 degrees, whenactuation structure 120 is fully decompressed. Illustratively,flexible housing tube 200 may comprise a slight curve, e.g., a curve equal to or greater than 7.5 degrees, whenactuation structure 120 is fully decompressed. In one or more embodiments,flexible housing tube 200 may comprise a slight curve configured to indicate a direction thatoptic fiber 210 may curve, e.g., due to a compression ofactuation structure 120. - In one or more embodiments, a location wherein
cable 710 may be fixed toflexible housing tube 200 may be adjusted to vary an amount of compression ofactuation structure 120 configured to curveflexible housing tube 200 to a particular curved position. For example, a portion ofcable 710 may be fixed to an outer portion offlexible housing tube 200. Illustratively,cable 710 may be fixed toflexible housing tube 200 at a plurality of fixation points, e.g., to vary one or more properties of a steerable laser probe. In one or more embodiments, a length ofcable 710 may be adjusted to vary an amount of compression ofactuation structure 120 configured to curveflexible housing tube 200 to a particular curved position. Illustratively, a steerable laser probe may comprise one or moreredundant cables 710. In one or more embodiments, one or moreredundant cables 710 may be configured to maintain a particular curved position offlexible housing tube 200, e.g., in the event thatcable 710 breaks or fails. Illustratively, one or moreredundant cables 710 may be configured to maintain a particular curved position offlexible housing tube 200, e.g., in the event that acable 710 fixation means fails. In one or more embodiments, one or moreredundant cables 710 may be configured to maintain a particular curved position offlexible housing tube 200, e.g., in the event thatcable 710 is no longer configured to maintain the particular curved position offlexible housing tube 200. Illustratively, one or moreredundant cables 710 may be configured to maintain a particular curved position offlexible housing tube 200 whereincable 710 is also configured to maintain the particular curved position offlexible housing tube 200. - In one or more embodiments,
flexible housing tube 200 may comprise an access window configured to allow access to aportion cable 710. Illustratively,cable 710 may be fixed to a portion offlexible housing tube 200, e.g., by looping a portion ofcable 710 through an aperture inflexible housing tube 200. In one or more embodiments,cable 710 may be fixed to a portion offlexible housing tube 200, e.g., by a purely mechanical means. For example,cable 710 may be fixed to a portion offlexible housing tube 200 in a manner other than by an adhesive, a weld, etc. Illustratively,cable 710 may be fixed to a portion offlexible housing tube 200 wherein a portion ofcable 710 is configured to fail at a first applied failure force and a fixation means that fixes a portion ofcable 710 to a portion offlexible housing tube 200 is configured to fail at a second applied failure force. In one or more embodiments, the second applied failure force may be greater than the first applied failure force. -
FIGS. 10A, 10B, 10C, 10D, and 10E are schematic diagrams illustrating a gradual straightening of anoptic fiber 210.FIG. 10A illustrates a fullycurved optic fiber 1000. - In one or more embodiments,
optic fiber 210 may comprise a fullycurved optic fiber 1000, e.g., whenactuation structure 120 is fully compressed. Illustratively,optic fiber 210 may comprise a fullycurved optic fiber 1000, e.g., whenflexible housing tube 200 is fully extended relative to wire 710. In one or more embodiments, a line tangent to optic fiberdistal end 211 may be parallel to a line tangent to flexible housing tubeproximal end 202, e.g., whenoptic fiber 210 comprises a fullycurved optic fiber 1000. -
FIG. 10B illustrates an optic fiber in a first partially straightenedposition 1010. In one or more embodiments, a decompression ofactuation structure 120 may be configured to gradually straightenoptic fiber 210 from a fullycurved optic fiber 1000 to an optic fiber in a first partially straightenedposition 1010. Illustratively, a decompression ofactuation structure 120 may be configured to retract actuation structuredistal end 121 relative to actuation structureproximal end 122. In one or more embodiments, a retraction of actuation structuredistal end 121 relative to actuation structureproximal end 122 may be configured to retractflexible housing tube 200 relative tocable 710. Illustratively, a portion ofcable 710, e.g., a portion ofcable 710 fixed to a portion offlexible housing tube 200, may be configured to facilitate a retraction offlexible housing tube 200 relative tocable 710. In one or more embodiments, a retraction offlexible housing tube 200 relative tocable 710 may be configured to decompress a portion offlexible housing tube 200. Illustratively, a decompression of a portion offlexible housing tube 200 may be configured to gradually straightenflexible housing tube 200. In one or more embodiments, a gradual straightening offlexible housing tube 200 may be configured to gradually straightenoptic fiber 210, e.g., from a fullycurved optic fiber 1000 to an optic fiber in a first partially straightenedposition 1010. Illustratively, a line tangent to optic fiberdistal end 211 may intersect a line tangent to flexible housing tubeproximal end 202 at a first partially straightened angle, e.g., whenoptic fiber 210 comprises an optic fiber in a first partially straightenedposition 1010. In one or more embodiments, the first partially straightened angle may comprise any angle less than 180 degrees. For example, the first partially straightened angle may comprise a 135 degree angle. -
FIG. 10C illustrates an optic fiber in a second partially straightenedposition 1020. In one or more embodiments, a decompression ofactuation structure 120 may be configured to gradually straightenoptic fiber 210 from an optic fiber in a first partially straightenedposition 1010 to an optic fiber in a second partially straightenedposition 1020. Illustratively, a decompression ofactuation structure 120 may be configured to retract actuation structuredistal end 121 relative to actuation structureproximal end 122. In one or more embodiments, a retraction of actuation structuredistal end 121 relative to actuation structureproximal end 122 may be configured to retractflexible housing tube 200 relative tocable 710. Illustratively, a portion ofcable 710, e.g., a portion ofcable 710 fixed to a portion offlexible housing tube 200, may be configured to facilitate a retraction offlexible housing tube 200 relative tocable 710. In one or more embodiments, a retraction offlexible housing tube 200 relative tocable 710 may be configured to decompress a portion offlexible housing tube 200. Illustratively, a decompression of a portion offlexible housing tube 200 may be configured to gradually straightenflexible housing tube 200. In one or more embodiments, a gradual straightening offlexible housing tube 200 may be configured to gradually straightenoptic fiber 210, e.g., from an optic fiber in a first partially straightenedposition 1010 to an optic fiber in a second partially straightenedposition 1020. Illustratively, a line tangent to optic fiberdistal end 211 may intersect a line tangent to flexible housing tubeproximal end 202 at a second partially straightened angle, e.g., whenoptic fiber 210 comprises an optic fiber in a second partially straightenedposition 1020. In one or more embodiments, the second partially straightened angle may comprise any angle less than the first partially straightened angle. For example, the second partially straightened angle may comprise a 90 degree angle. -
FIG. 10D illustrates an optic fiber in a third partially straightenedposition 1030. In one or more embodiments, a decompression ofactuation structure 120 may be configured to gradually straightenoptic fiber 210 from an optic fiber in a second partially straightenedposition 1020 to an optic fiber in a third partially straightenedposition 1030. Illustratively, a decompression ofactuation structure 120 may be configured to retract actuation structuredistal end 121 relative to actuation structureproximal end 122. In one or more embodiments, a retraction of actuation structuredistal end 121 relative to actuation structureproximal end 122 may be configured to retractflexible housing tube 200 relative tocable 710. Illustratively, a portion ofcable 710, e.g., a portion ofcable 710 fixed to a portion offlexible housing tube 200, may be configured to facilitate a retraction offlexible housing tube 200 relative tocable 710. In one or more embodiments, a retraction offlexible housing tube 200 relative tocable 710 may be configured to decompress a portion offlexible housing tube 200. Illustratively, a decompression of a portion offlexible housing tube 200 may be configured to gradually straightenflexible housing tube 200. In one or more embodiments, a gradual straightening offlexible housing tube 200 may be configured to gradually straightenoptic fiber 210, e.g., from an optic fiber in a second partially straightenedposition 1020 to an optic fiber in a third partially straightenedposition 1030. Illustratively, a line tangent to optic fiberdistal end 211 may intersect a line tangent to flexible housing tubeproximal end 202 at a third partially straightened angle, e.g., whenoptic fiber 210 comprises an optic fiber in a third partially straightenedposition 1030. In one or more embodiments, the third partially straightened angle may comprise any angle less than the second partially straightened angle. For example, the third partially straightened angle may comprise a 45 degree angle. -
FIG. 10E illustrates an optic fiber in a fully straightenedposition 1040. In one or more embodiments, a decompression ofactuation structure 120 may be configured to gradually straightenoptic fiber 210 from an optic fiber in a third partially straightenedposition 1030 to an optic fiber in a fully straightenedposition 1040. Illustratively, a decompression ofactuation structure 120 may be configured to retract actuation structuredistal end 121 relative to actuation structureproximal end 122. In one or more embodiments, a retraction of actuation structuredistal end 121 relative to actuation structureproximal end 122 may be configured to retractflexible housing tube 200 relative tocable 710. Illustratively, a portion ofcable 710, e.g., a portion ofcable 710 fixed to a portion offlexible housing tube 200, may be configured to facilitate a retraction offlexible housing tube 200 relative tocable 710. In one or more embodiments, a retraction offlexible housing tube 200 relative tocable 710 may be configured to decompress a portion offlexible housing tube 200. Illustratively, a decompression of a portion offlexible housing tube 200 may be configured to gradually straightenflexible housing tube 200. In one or more embodiments, a gradual straightening offlexible housing tube 200 may be configured to gradually straightenoptic fiber 210, e.g., from an optic fiber in a third partially straightenedposition 1030 to an optic fiber in a fully straightenedposition 1040. Illustratively, a line tangent to optic fiberdistal end 211 may be parallel to a line tangent to flexible housing tubeproximal end 202, e.g., whenoptic fiber 210 comprises an optic fiber in a fully straightenedposition 1040. - Illustratively, a surgeon may aim optic fiber
distal end 211 at any of a plurality of targets within an eye, e.g., to perform a photocoagulation procedure, to illuminate a surgical target site, etc. In one or more embodiments, a surgeon may aim optic fiberdistal end 211 at any target within a particular transverse plane of the inner eye by, e.g.,rotating handle 600 to orientflexible housing tube 200 in an orientation configured to cause a curvature offlexible housing tube 200 within the particular transverse plane of the inner eye and varying an amount of compression ofactuation structure 120. Illustratively, a surgeon may aim optic fiberdistal end 211 at any target within a particular sagittal plane of the inner eye by, e.g.,rotating handle 600 to orientflexible housing tube 200 in an orientation configured to cause a curvature offlexible housing tube 200 within the particular sagittal plane of the inner eye and varying an amount of compression ofactuation structure 120. In one or more embodiments, a surgeon may aim optic fiberdistal end 211 at any target within a particular frontal plane of the inner eye by, e.g., varying an amount of compression ofactuation structure 120 to orient a line tangent to optic fiberdistal end 211 wherein the line tangent to optic fiberdistal end 211 is within the particular frontal plane of the inner eye androtating handle 600. Illustratively, a surgeon may aim optic fiberdistal end 211 at any target located outside of the particular transverse plane, the particular sagittal plane, and the particular frontal plane of the inner eye, e.g., by varying a rotational orientation ofhandle 600 and varying an amount of compression ofactuation structure 120. In one or more embodiments, a surgeon may aim optic fiberdistal end 211 at any target of a plurality of targets within an eye, e.g., without increasing a length of a portion of a steerable laser probe within the eye. Illustratively, a surgeon may aim optic fiberdistal end 211 at any target of a plurality of targets within an eye, e.g., without decreasing a length of a portion of a steerable laser probe within the eye. - The foregoing description has been directed to particular embodiments of this invention. It will be apparent; however, that other variations and modifications may be made to the described embodiments, with the attainment of some or all of their advantages. Specifically, it should be noted that the principles of the present invention may be implemented in any system. Furthermore, while this description has been written in terms of a medical device, the teachings of the present invention are equally suitable to any systems where the functionality may be employed. Therefore, it is the object of the appended claims to cover all such variations and modifications as come within the true spirit and scope of the invention.
Claims (20)
1. An ophthalmic laser probe comprising:
a handle having a handle distal end and a handle proximal end;
an actuation structure of the handle having an actuation structure distal end and an actuation structure proximal end;
a housing tube housing of the handle;
an inner bore of the handle;
a single housing tube having a single housing tube distal end and a single housing tube proximal end wherein the single housing tube proximal end is disposed in the housing tube housing; and
an optic fiber having an optic fiber distal end and an optic fiber proximal end wherein the optic fiber is disposed in the inner bore, the housing tube housing, and the single housing tube wherein the optic fiber distal end is adjacent to the single housing tube distal end and wherein a compression of the actuation structure is configured to extend the single housing tube relative to the handle proximal end and curve the optic fiber and the single housing tube.
2. The ophthalmic laser probe of claim 1 wherein the actuation structure is manufactured by additive manufacturing.
3. The ophthalmic laser probe of claim 1 wherein the compression of the actuation structure is configured to extend the actuation structure distal end relative to the actuation structure proximal end.
4. The ophthalmic laser probe of claim 1 wherein the compression of the actuation structure is configured to extend the handle distal end relative to the handle proximal end.
5. The ophthalmic laser probe of claim 1 wherein the compression of the actuation structure is configured to extend the single housing tube relative to the optic fiber.
6. The ophthalmic laser probe of claim 1 wherein the compression of the actuation structure is configured to compress a portion of the single housing tube.
7. The ophthalmic laser probe of claim 1 wherein a decompression of the actuation structure is configured to retract the single housing tube relative to the handle proximal end.
8. The ophthalmic laser probe of claim 1 wherein a decompression of the actuation structure is configured to straighten the optic fiber.
9. The ophthalmic laser probe of claim 1 wherein a decompression of the actuation structure is configured to straighten the single housing tube.
10. The ophthalmic laser probe of claim 1 wherein a decompression of the actuation structure is configured to decompress a portion of the single housing tube.
11. An ophthalmic laser probe comprising:
a handle having a handle distal end and a handle proximal end;
an actuation structure of the handle having an actuation structure distal end and an actuation structure proximal end;
a housing tube housing of the handle;
an inner bore of the handle;
a single housing tube having a single housing tube distal end and a single housing tube proximal end wherein the single housing tube proximal end is disposed in the housing tube housing; and
an optic fiber having an optic fiber distal end and an optic fiber proximal end wherein the optic fiber is disposed in the inner bore, the housing tube housing, and the single housing tube wherein the optic fiber distal end is adjacent to the single housing tube distal end and wherein a decompression of the actuation structure is configured to retract the single housing tube relative to the handle proximal end and straighten the optic fiber and the single housing tube.
12. The ophthalmic laser probe of claim 11 wherein the actuation structure is manufactured by additive manufacturing.
13. The ophthalmic laser probe of claim 11 wherein the decompression of the actuation structure is configured to retract the actuation structure distal end relative to the actuation structure proximal end.
14. The ophthalmic laser probe of claim 11 wherein the decompression of the actuation structure is configured to retract the handle distal end relative to the handle proximal end.
15. The ophthalmic laser probe of claim 11 wherein the decompression of the actuation structure is configured to retract the single housing tube relative to the optic fiber.
16. The ophthalmic laser probe of claim 11 wherein the decompression of the actuation structure is configured to decompress a portion of the single housing tube.
17. The ophthalmic laser probe of claim 11 wherein a compression of the actuation structure is configured to extend the single housing tube relative to the handle proximal end.
18. The ophthalmic laser probe of claim 11 wherein a compression of the actuation structure is configured to curve the optic fiber.
19. The ophthalmic laser probe of claim 11 wherein a compression of the actuation structure is configured to curve the single housing tube.
20. The ophthalmic laser probe of claim 11 wherein a compression of the actuation structure is configured to compress a portion of the single housing tube.
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US9931246B2 (en) | 2018-04-03 |
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