Classifications

• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
  • A61B46/00—Surgical drapes
  • A61B46/10—Surgical drapes specially adapted for instruments, e.g. microscopes
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
  • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
  • A61B1/00142—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with means for preventing contamination, e.g. by using a sanitary sheath
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
  • A61B17/00—Surgical instruments, devices or methods
  • A61B17/00234—Surgical instruments, devices or methods for minimally invasive surgery
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
  • A61B34/00—Computer-aided surgery; Manipulators or robots specially adapted for use in surgery
  • A61B34/30—Surgical robots
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
  • A61B34/00—Computer-aided surgery; Manipulators or robots specially adapted for use in surgery
  • A61B34/30—Surgical robots
  • A61B34/35—Surgical robots for telesurgery
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
  • A61B34/00—Computer-aided surgery; Manipulators or robots specially adapted for use in surgery
  • A61B34/30—Surgical robots
  • A61B34/37—Leader-follower robots
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
  • A61B34/00—Computer-aided surgery; Manipulators or robots specially adapted for use in surgery
  • A61B34/70—Manipulators specially adapted for use in surgery
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
  • A61B46/00—Surgical drapes
  • A61B46/40—Drape material, e.g. laminates; Manufacture thereof
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
  • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
  • A61B90/08—Accessories or related features not otherwise provided for
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
  • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
  • A61B90/36—Image-producing devices or illumination devices not otherwise provided for
  • A61B90/361—Image-producing devices, e.g. surgical cameras
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
  • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
  • A61B90/90—Identification means for patients or instruments, e.g. tags
  • A61B90/98—Identification means for patients or instruments, e.g. tags using electromagnetic means, e.g. transponders
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
  • A61B17/00—Surgical instruments, devices or methods
  • A61B2017/00477—Coupling
• • 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
  • A61B2018/00053—Mechanical features of the instrument of device
  • A61B2018/00172—Connectors and adapters therefor
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
  • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
  • A61B90/08—Accessories or related features not otherwise provided for
  • A61B2090/0813—Accessories designed for easy sterilising, i.e. re-usable
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
  • A61B46/00—Surgical drapes
  • A61B46/20—Surgical drapes specially adapted for patients
  • A61B46/23—Surgical drapes specially adapted for patients with means to retain or hold surgical implements
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16H—GEARING
  • F16H1/00—Toothed gearings for conveying rotary motion
  • F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
  • F16H1/20—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T29/00—Metal working
  • Y10T29/49—Method of mechanical manufacture
  • Y10T29/49815—Disassembling
  • Y10T29/49817—Disassembling with other than ancillary treating or assembling
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T403/00—Joints and connections
  • Y10T403/59—Manually releaseable latch type

Definitions

• Embodiments of the invention relate to the field of field of mechanical couplers; and more specifically, to a mechanical coupler for transferring motion from a teleoperated actuator to an attached surgical instrument.
• Minimally invasive medical techniques have been used to reduce the amount of extraneous tissue which may be damaged during diagnostic or surgical procedures, thereby reducing patient recovery time, discomfort, and deleterious side effects.
• Traditional forms of minimally invasive surgery include endoscopy.
• One of the more common forms of endoscopy is laparoscopy, which is minimally invasive inspection or surgery within the abdominal cavity.
• laparoscopy is minimally invasive inspection or surgery within the abdominal cavity.
• cannula sleeves are passed through small (approximately 12 mm) incisions in the musculature of the patient's abdomen to provide entry ports through which laparoscopic surgical instruments can be passed in a sealed fashion.
• the laparoscopic surgical instruments generally include a
• Typical surgical end effectors include clamps, graspers, scissors, staplers, and needle holders, for example.
• the surgical instruments are similar to those used in conventional (open) surgery, except that the working end or end effector of each surgical instrument is separated from its handle by an approximately 30 cm. long extension tube, for example, so as to permit the operator to introduce the end effector to the surgical site and to control movement of the end effector relative to the surgical site from outside a patient's body.
• the surgical instrument In order to provide improved control of the working tools, it may be desirable to control the surgical instrument with teleoperated actuators.
• the surgeon may operate controls on a console to indirectly manipulate the instrument that is connected to the teleoperated actuators.
• the surgical instrument is detachably coupled to the teleoperated actuators so that the surgical instrument can be separately sterilized and selected for use as needed instrument for the surgical procedure to be performed.
• the surgical instrument may be changed during the course of a surgery.
• Performing surgery with teleoperated surgical instruments creates new challenges.
• One challenge is the need to maintain the region adjacent the patient in a sterile condition.
• the motors, sensors, encoders and electrical connections that are necessary to control the surgical instruments typically cannot be sterilized using conventional methods, e.g., steam, heat and pressure or chemicals, because they would be damaged or destroyed in the sterilization process.
• surgeon will typically employ several different surgical instruments during a procedure.
• a number of different surgical instruments will typically be introduced through the same trocar sleeve during the operation to limit the number of incisions required.
• there are a limited number of instrument holders available often fewer than the number of surgical instruments used during a procedure. Therefore the surgical instruments may be attached and detached from the same instrument holder a number of times during an operation.
• a number of connections are required between the surgical instrument and the teleoperated actuator and its controller. Connections are required to transmit the actuator forces, electrical signals, and data. This makes the attachment of the surgical instrument to the teleoperated actuator and its controller complex.
• a sterile adapter for coupling a surgical instrument and a surgical instrument manipulator includes a bottom component and a coupling component.
• the bottom component includes a bottom component opening with a bottom lip having a locking mechanism.
• the coupling component is rotatably coupled to the bottom component.
• the coupling component includes an engagement feature that engages the surgical instrument manipulator.
• the coupling component further includes a locking
• the coupling component may include a retention tab that is aligned with the keyway to insert the coupling component into the bottom component opening and then misaligned with the keyway to retain the coupling component in the bottom component opening.
• a ramp may be provided on a leading edge of a pocket to facilitate engaging the coupling component with the surgical instrument manipulator.
• FIG. 1 is a view of an illustrative patient-side portion of a teleoperated surgical system.
• FIG. 2 is a side view of a surgical instrument for use with a
• FIG. 3A is an illustration of an exemplary embodiment of a coupling of a surgical instrument, a carriage of a surgical instrument manipulator, and an instrument sterile adapter (ISA).
• ISA instrument sterile adapter
• FIG. 3B is an illustration of an exemplary embodiment of the coupler system of FIG. 3A.
• FIG. 4 is an illustration of an exemplary embodiment of an
• FIG. 5 is an illustration of an ISA bottom component and a plurality of ISA couplers.
• FIG. 6 is an illustration of an exemplary embodiment of an ISA
• FIG. 7 is an illustration of a plurality of ISA couplers coupled with the
• FIG. 8 is an illustration of an exemplary embodiment of an ISA top component having one ISA coupler placed in a top component opening.
• FIG. 9 is illustration of a cut-away ISA top component coupled to the
• FIG. 10 is an illustration of an exemplary embodiment of a top
• FIG. 1 1 is an illustration of an exemplary embodiment of the underside of an ISA.
• FIG. 12 is an illustration of an exemplary embodiment of an
• FIG. 13A is an illustration of an exemplary embodiment of an ISA bottom component having a locking mechanism illustrated as a boss.
• FIG. 13B is an enlarged illustration of the boss locking mechanism illustrated in a portion of Figure 13A.
• FIG. 13C is an illustration of an exemplary embodiment of an ISA bottom component having a locking mechanism illustrated as a ratchet.
• FIG. 13D is an enlarged illustration of the ratchet locking mechanism illustrated in a portion of Figure 13C
• FIG. 16A is an illustration of an exemplary embodiment of an ISA bottom engagement feature approaching a carriage engagement feature without an entry ramp.
• FIG. 16B is an illustration of the exemplary embodiment of Figure
• FIG. 17A is an illustration of an exemplary embodiment of an ISA bottom engagement feature approaching a carriage engagement feature that includes an entry ramp.
• FIG. 17B is an illustration of the exemplary embodiment of Figure
• FIG. 18A is an illustration of an exemplary embodiment of an ISA bottom engagement feature that includes an entry ramp approaching a carriage engagement feature.
• FIG. 18B is an illustration of the exemplary embodiment of Figure
• spatially relative terms such as “beneath”, “below”, “lower”, “above”, “upper”, and the like may be used herein for ease of description to describe one element's or feature's relationship to another element(s) or feature(s) as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as “below” or “beneath” other elements or features would then be oriented “above” the other elements or features. Thus, the exemplary term “below” can encompass both an orientation of above and below. The device may be otherwise oriented (e.g., rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
• object generally refers to a component or group of
• an object may refer to either a pocket or a boss of a disk within the specification or claims.
• object may refer to either a pocket or a boss of a disk within the specification or claims.
• instrument and “surgical instrument” are used herein to describe a medical device configured to be inserted into a patient's body and used to carry out surgical or diagnostic procedures.
• the instrument includes an end effector.
• the end effector may be a surgical tool associated with one or more surgical tasks, such as a forceps, a needle driver, a shears, a bipolar cauterizer, a tissue stabilizer or retractor, a clip applier, an anastomosis device, an imaging device (e.g., an endoscope or ultrasound probe), and the like.
• Some instruments used with embodiments of the invention further provide an articulated support (sometimes referred to as a "wrist") for the surgical tool so that the position and orientation of the surgical tool can be manipulated with one or more mechanical degrees of freedom in relation to the instrument's shaft.
• many surgical end effectors include a functional mechanical degree of freedom, such as jaws that open or close, or a knife that translates along a path.
• Surgical instruments may also contain stored (e.g., on a semiconductor memory inside the instrument) information that may be permanent or may be updatable by the surgical system. Accordingly, the system may provide for either one-way or two-way information communication between the instrument and one or more system components.
• pocket may be construed broadly as a recess of a
• a boss may be configured as any shape or size.
• One use of a boss is to participate in a mating process with a pocket through insertion of the boss into the pocket.
• the terms "boss” and “protrusion” are used interchangeably.
• engagement feature may be construed broadly as a
• mating may be construed broadly as any event in which two or more objects are connected in a manner allowing the mated objects to operate in conjunction with one another. It should be noted that mating does not require a direct connection (e.g., direct physical or electrical connection) but that a multiplicity of objects or components may be used to mate two or more objects. For example, objects A and B may be mated through the use of object C. As another example, objects D and E may mate when object D, a protrusion, is received into the recess of object E, a pocket. Throughout the specification and claims, the terms "mate,”
• Coupled means "connect” or “engage” are used interchangeably.
• detachably coupled or “detachably mated” may be construed to mean a coupling or mating event between two or more objects that is not permanent. This means that objects that are detachably coupled may be uncoupled and separated such that they no longer operate in conjunction.
• the protrusion of the boss is inherently smaller than opening of the pocket.
• the difference between the size of the protrusion and the size of the opening is the amount of backlash between the boss and the pocket.
• FIG. 1 is a view of an illustrative patient-side portion 100 of a
• the patient-side portion 100 includes support assemblies 1 10 and one or more surgical instrument manipulators 1 12 at the end of each support assembly.
• the support assemblies optionally include one or more unpowered, lockable setup joints that are used to position the surgical instrument manipulator(s) 1 12 with reference to the patient for surgery.
• the patient-side portion 100 rests on the floor.
• the patient-side portion may be mounted to a wall, to the ceiling, to the operating table 126, which also supports the patient's body 1 22, or to other operating room equipment.
• the patient-side portion 100 is shown as including four surgical instrument manipulators 1 12, more or fewer surgical instrument manipulators 1 12 may be used.
• the patient-side portion 100 may consist of a single assembly as shown, or it may include two or more separate assemblies, each optionally mounted in various possible ways.
• Each surgical instrument manipulator 1 12 supports one or more surgical instruments 1 20 that operate at a surgical site within the patient's body 1 22.
• Each surgical instrument manipulator 1 12 may be provided in a variety of forms that allow the associated surgical instrument to move with one or more mechanical degrees of freedom (e.g., all six Cartesian degrees of freedom, five or fewer Cartesian degrees of freedom, etc.).
• mechanical or control constraints restrict each surgical instrument manipulator 1 1 2 to move its associated surgical instrument around a center of motion on the surgical instrument that stays stationary with reference to the patient, and this center of motion is typically located to be at the position where the surgical instrument enters the body.
• a functional teleoperated surgical system will generally include a vision system portion (not shown) that enables the operator to view the surgical site from outside the patient's body 122.
• the vision system typically includes a surgical instrument that has a video-image-capture function 128 (a "camera instrument") and one or more video displays for displaying the captured images.
• the camera instrument 128 includes optics that transfer the images from the distal end of the camera instrument 1 28 to one or more imaging sensors (e.g., CCD or CMOS sensors) outside of the patient's body 122.
• the imaging sensor(s) may be positioned at the distal end of the camera instrument 128, and the signals produced by the sensor(s) may be transmitted along a lead or wirelessly for processing and display on the video display.
• An illustrative video display is the stereoscopic display on the surgeon's console in surgical systems commercialized by Intuitive Surgical, Inc., Sunnyvale, California.
• a functional teleoperated surgical system will further include a control system portion (not shown) for controlling the movement of the surgical instruments 120 while the instruments are inside the patient.
• the control system portion may be at a single location in the surgical system, or it may be distributed at two or more locations in the system (e.g., control system portion components may be in the system's patient-side portion 100, in a dedicated system control console, or in a separate equipment rack).
• the teleoperated master/slave control may be done in a variety of ways, depending on the degree of control desired, the size of the surgical assembly being controlled, and other factors.
• control system portion includes one or more manually-operated input devices, such as a joystick, exoskeletal glove, a powered and gravity- compensated manipulator, or the like. These input devices control teleoperated motors which, in turn, control the movement of the surgical instrument.
• manually-operated input devices such as a joystick, exoskeletal glove, a powered and gravity- compensated manipulator, or the like.
• the forces generated by the teleoperated motors are transferred via drivetrain mechanisms, which transmit the forces from the teleoperated motors to the surgical instrument 1 20.
• the input devices that control the manipulator(s) may be provided at a location remote from the patient, either inside or outside the room in which the patient is placed. The input signals from the input devices are then transmitted to the control system portion. Persons familiar with
• both the surgical instrument 120 and an optional entry guide 124 are removably coupled to the distal end of a manipulator 1 12, with the surgical instrument 120 inserted through the entry guide 124.
• Teleoperated actuators in the manipulator 1 12 move the surgical instrument 120 as a whole.
• the manipulator 1 12 further includes an instrument carriage 130.
• the surgical instrument 120 is detachably connected to the carriage 1 30.
• the teleoperated actuators housed in the carriage 130 provide a number of controller motions which the surgical instrument 120 translates into a variety of movements of the end effector on the surgical instrument.
• the teleoperated actuators in the carriage 130 move only one or more components of the surgical instrument 120 rather than the instrument as a whole.
• Inputs to control either the instrument as a whole or the instrument's components are such that the input provided by a surgeon to the control system portion (a "master” command) is translated into a corresponding action by the surgical instrument (a "slave” response).
• FIG. 2 is a side view of an illustrative embodiment of the surgical instrument 120, comprising a distal portion 250 and a proximal control mechanism 240 coupled by an elongate tube 210.
• the distal portion 250 of the surgical instrument 120 may provide any of a variety of surgical tools, such as the forceps 254 shown, a needle driver, a cautery device, a cutting tool, an imaging device (e.g., an endoscope or ultrasound probe), or a combined device that includes a combination of two or more various tools and imaging devices.
• the surgical tool 254 is coupled to the elongate tube 210 by a "wrist" 252 that allows the orientation of the surgical tool to be manipulated with reference to the instrument tube 21 0.
• Surgical instruments that are used with the invention may control their end effectors (surgical tools) with a plurality of rods and/or flexible cables.
• Rods which may be in the form of tubes, may be combined with cables to provide a "push/pull" control of the end effector with the cables providing flexible sections as required.
• a typical elongate tube 210 for a surgical instrument 120 is small, perhaps five to eight millimeters in diameter, roughly the diameter of a large soda straw. The diminutive scale of the mechanisms in the surgical instrument 120 creates unique mechanical conditions and issues with the construction of these
• the cables must fit within the elongate tube 210 and be able to bend as they pass through the wrist joint 252.
• a sterile component such as an instrument sterile adapter (ISA)
• ISA instrument sterile adapter
• the placement of an instrument sterile adapter between the surgical instrument 120 and the surgical instrument manipulator 1 30 includes the benefit of ensuring a sterile coupling point for the surgical instrument 120 and the surgical instrument manipulator 130. This permits removal of surgical instruments from the surgical instrument manipulator 1 30 and exchange with other surgical instruments during the course of a surgery.
• FIG. 3A shows a portion of an exemplary embodiment of a proximal control mechanism 240 of a surgical instrument 120, a carriage 31 0 of a teleoperated surgical instrument manipulator 130, and an instrument sterile adapter (ISA) 300 in a coupled condition.
• ISA instrument sterile adapter
• FIG. 3B shows an exploded view of the coupler system of FIG. 3A.
• the first stage of the coupling process includes the ISA 300 coupling with the carriage 130.
• Carriage drivers 320 on the carriage 130 are rotated to engage the corresponding ISA couplers 330.
• the surgical instrument 120 is coupled with the ISA 300.
• the ISA couplers 330 are rotated by the carriage drivers 320 to engage corresponding instrument drivers (not shown).
• the instrument sterile adapter is assembled from a plurality of components, including, among others, a top component, a bottom component and one or more couplers. A coupler is positioned through an opening in the bottom component, and then the top component is joined with the bottom component.
• FIG. 4 shows an exemplary embodiment of an assembled ISA 300.
• the ISA 300 includes an ISA top component 410, an ISA bottom
• FIG. 4 illustrates the ISA 300 including five ISA couplers 330.
• the number of ISA couplers 330 is not limited to five, but may be more than or less than five.
• FIG. 5 a view of an ISA bottom component 420 and a plurality of ISA couplers 330 is shown.
• the ISA bottom component 420 includes a plurality of bottom component openings 530.
• Each coupler 330 is associated with a corresponding opening 530.
• Each bottom component opening 530 is partially surrounded by a bottom lip 540, and each bottom lip 540 includes one or more keyways 550.
• the ISA coupler 330 includes two ISA bottom engagement features 610, two ISA top engagement features 600 (one is hidden from view), two ISA locking mechanism openings 640, two retention tabs 630, and an ISA coupler lip 620. It should be noted that the number of engagement features, retention tabs, and locking mechanism openings are variable. In addition, various configurations of the top and bottom engagement features 600, 610 may be used. For example, the bottom engagement feature 610 could be a recessed feature rather than a projecting feature as shown. [0066] Referring again to Figure 5, each ISA coupler 330 is positioned in a corresponding bottom component opening 530.
• the ISA coupler 330 is rotated to align the retention tabs 630 with the keyways 550 to allow the ISA coupler to be inserted into the corresponding bottom component opening 530.
• the ISA coupler lip 620 is larger than the bottom component opening 530 and limits the distance the ISA coupler 330 can be inserted into the bottom component opening.
• the ISA coupler 330 is then rotated to unalign the retention tabs 630 with the keyways 550 so as to retain the ISA coupler in the corresponding bottom component opening 530.
• FIG. 7 an illustration of a plurality of ISA couplers 330 coupled with the ISA bottom component 420 is shown.
• the ISA top component 410 of the ISA 300 includes five top component openings 810, through which five ISA couplers 330 pass. Furthermore, each top component opening 810 includes two keyway fillers 820. The number of keyway fillers 820 included in each top component opening 810 may be varied but should correspond with the number of keyways 550 included in each bottom component opening 530 of the ISA bottom component 420.
• FIG. 9 illustrates the ISA top component 410 coupled to the ISA bottom component 420.
• the ISA couplers 330 are not shown to allow the bottom lip 540 and keyway 550 features of the bottom component to be seen.
• FIG. 9 illustrates the ISA top component 410 cut along line 9— 9 in Figure 8 and the forward half of the ISA top component removed. After the ISA couplers 330 are inserted into the corresponding bottom component openings 530, the ISA top component 410 is then placed on top of the ISA bottom component 420 such that the ISA couplers 330 pass through the corresponding top component openings 81 0 in the ISA top component 41 0.
• the keyway fillers 820 of the ISA top component 410 align with the keyways 550 of the ISA bottom component 420.
• the alignment of the keyway fillers 820 and the keyways 550 locks the ISA couplers 330 between the ISA bottom component 420 and the ISA top component 410.
• the illustration of FIG. 9 shows that the keyway filler 820 of the top component 410 and the bottom lip 540 of the bottom component 420 create a complete lip when the top component 41 0 and then bottom component 420 are coupled.
• FIG. 10 illustrates an exemplary embodiment of the ISA top
• the ISA coupler 330 is not shown in FIG. 10 in order to illustrate how the keyway filler 820 aligns with the keyway 550 to create a solid lip preventing the ISA coupler 330 from dislodging.
• the keyway filler 820 is configured to be the counterpart to the keyway 550.
• other shapes may be used for the keyways 550 and the keyway fillers 820.
• the ISA 300 is shown to include five ISA couplers 330.
• the number of ISA couplers 330 is not limited to five; other embodiments may contain more than or less than five.
• ISA couplers 330 is not limited to that as illustrated in FIG. 11 , and ISA couplers may be arranged in various patterns.
• FIG. 6 shows an exemplary embodiment of an ISA coupler 330.
• the ISA coupler 330 includes two ISA bottom engagement features 610, two ISA top engagement features 600, two ISA locking mechanism openings 640, two retention tabs 630, and an ISA coupler lip 620.
• the portion of the ISA coupler 330 that includes the ISA bottom engagement features 610 projects through the bottom component opening 530.
• the portion of the ISA coupler 330 that includes the ISA top engagement features 600 projects through the top component opening 81 0.
• FIG. 12 an exemplary illustration of the carriage 310 is shown.
• the carriage 310 is shown to have five carriage drivers 320.
• Each carriage driver 320 is driven in a rotational manner by a motor (not shown).
• the number of carriage drivers 320 and motors can be varied depending on various factors such as, among other things, the size of the support assembly 1 10 and the size of the teleoperated surgical instrument manipulator 130.
• each carriage driver 320 is shown to have two carriage engagement features 1220.
• the carriage 310 of the surgical instrument manipulator 130 couples with the ISA 300 through an engagement process between the carriage engagement features 1220 of the carriage driver 320 and the ISA bottom engagement features 610 of the ISA coupler 330, which will be described below.
• the number of carriage engagement features 1220 and ISA bottom engagement features 610 is not limited to two. In other embodiments, the number may be more than or less than two.
• Each carriage driver 320 contains a spring-loaded mechanism such that when a force is applied to the carriage driver 320 (e.g., from projecting engagement features on a corresponding driven element), the carriage driver 320 recedes slightly into the carriage 310.
• the spring-loaded mechanism provides the necessary force to couple the ISA bottom engagement features 61 0 with the carriage engagement features 1220 when they come into alignment as the carriage drivers 320 rotate.
• the ISA couplers 330 may rotate as the carriage drivers 320 turn. It is necessary to ensure that the ISA bottom engagement features 610 engage the carriage engagement features 1 220 so that a surgical instrument attached to the ISA 300 can be properly controlled.
• a locking mechanism may be implemented within the ISA 300.
• the locking mechanism implemented within the ISA 300 is a
• FIG. 13A illustrates an embodiment of an ISA bottom component 420.
• the ISA bottom component 420 includes a plurality of bottom component openings 530.
• each bottom component opening 530 is partially surrounded by a bottom lip 540, and each bottom lip 540 includes one or more keyways 550 and one or more locking mechanisms 1 310.
• the ISA coupler 330 Prior to any coupling with the carriage 310 or the surgical instrument 120, the ISA coupler 330 does not sit flush against the bottom lip 540 or the locking mechanism(s) 1310 and is free to rotate completely in either direction. However, when an attempt to couple the carriage 310 with the ISA 300 is made, the carriage drivers 320 push the ISA couplers 330 against the bottom lip 540 or the locking mechanism(s) 1310. When the ISA coupler 330 is pushed up toward the bottom lip 540, one of two situations occur: (1 ) the ISA coupler lip 620 comes in contact with the locking mechanism(s) 1310 or (2) the ISA locking mechanism opening 640 and the locking mechanism 1310 are in alignment and the ISA coupler lip 620 is pushed flush against the bottom lip 540.
• the ISA coupler 330 is illustrated as a boss.
• the ISA locking mechanism opening 640 is aligned with the ISA locking mechanism 1310, the ISA coupler 330 is pushed flush against the bottom lip 540.
• the ISA coupler rotates with the carriage drivers 310 against the bottom lip 540 until the ISA locking mechanism opening(s) 640 and the locking mechanism(s) 1310 are aligned.
• the locking mechanism opening(s) 61 0 and the locking mechanism(s) 1 310 are aligned, the ISA coupler lip 620 is pushed flush against the bottom lip 540.
• the ISA coupler lip 620 is pushed flush against the bottom lip 540 and the locking mechanism 1310 is embodied as a boss, the ISA coupler 330 is prevented from rotating in either direction.
• carriage engagement features 1220 are not initially aligned at the time the carriage drivers 320 come in contact with the ISA couplers 330, the friction between the ISA couplers 330 and carriage drivers 320 will cause the ISA couplers 330 to rotate with the carriage drivers 320.
• the ISA couplers 330 rotate such that the ISA locking mechanism opening(s) 640 are aligned with the locking mechanism(s) 1 31 0, the ISA coupler lip 620 will be pushed flush against the bottom lip 540.
• the torque from the motors is more powerful than the friction created by the force of the spring-loaded mechanisms in the carriage drivers 320 so the carriage drivers 320 continue to rotate as the ISA couplers remain stationary.
• FIG. 13C the locking mechanism 1 320 is illustrated as a ratchet.
• FIG. 13D is a detail drawing of a portion of Figure 13C that shows the ratchet locking mechanism.
• the ISA coupler lip 620 slides along in the slip direction of the ratchet until it hits a ratchet wall.
• the ISA coupler 330 has slid along the slip and hit the ratchet wall, the ISA coupler lip 620 sits flush against the bottom lip 540.
• the ISA coupler lip 620 is pushed flush against the bottom lip 540 and the locking mechanism 1320 is embodied as a ratchet, the ISA coupler 330 is prevented from rotating in the direction against the ratchet wall.
• the motors that drive the carriage drivers 320 are configured to rotate the carriage drivers 320, and consequently the ISA couplers 330, in the direction against the ratchet. If the ISA bottom engagement features 610 and the carriage engagement features 1220 are not initially aligned at the time the carriage drivers 320 come in contact with the ISA couplers 330, the friction between the ISA couplers 330 and carriage drivers 320 will cause the ISA couplers 330 to rotate with the carriage drivers 320.
• the torque from the motors is more powerful than the friction created by the force of the spring-loaded mechanisms in the carriage drivers 320 so once the ISA coupler lip 620 rotates to hit the ratchet wall, the carriage drivers 320 continue to rotate as the ISA couplers remain stationary. As the carriage drivers 320 rotate, it will bring the carriage engagement features 1220 into alignment with the ISA bottom engagement features 610. When the carriage engagement features 1220 and the ISA bottom engagement features 610 are in alignment, the pressure from the spring-loaded mechanism of the carriage 310 will cause the carriage engagement features 1220 and the ISA bottom engagement features 610 to engage.
• the locking mechanism 1320 is embodied as a ratchet
• the ISA coupler 330 is properly engaged with the carriage drivers 320, it is possible to rotate the ISA coupler 330 in the direction opposite that in which the ISA coupler lip 620 rotates to hit the ratchet wall. This allows the ISA coupler 330 to be rotated to a desired position prior to engaging a surgical instrument manipulator 130 with the ISA 300.
• the ISA coupler 330 is properly engaged with the carriage drivers 320, it is preferable for the ISA coupler 330 to be permitted to rotate freely in either direction.
• the instrument drivers 71 0 of the instrument 120 attempt to couple with the ISA couplers 330, the instrument drivers 71 0 place pressure on the ISA couplers 330. This in turn presses the ISA coupler lip 620 below the depth of the locking mechanism 131 0 or 1320, and allows the ISA coupler 330 to avoid the locking mechanism 1310 or 1 320 and rotate freely in either direction.
• the pockets may be located on the carriage drivers 320 and the bosses to be located on the ISA couplers 330 as shown in the figures provided.
• one embodiment may have the carriage drivers 320 including bosses and the ISA couplers 330 including pockets.
• the locking mechanism may be formed on the ISA top component 41 0 and extend into the ISA bottom component 420.
• the teleoperated surgical instrument manipulator 130 includes a software module that enables the surgical instrument manipulator 1 30 to detect when a proper engagement between the ISA 300 and the surgical instrument manipulator 130 (through the ISA couplers 330 and the carriage drivers 31 0) has occurred.
• a proper engagement event may be detected by the software module through the analysis of the amount of torque applied to the motors of the carriage 310.
• the ISA bottom engagement features 61 0 have coupled with the carriage engagement features 1 220 and the motors are attempting to drive the ISA couplers 330 against restriction of the locking mechanism.
• the software module detects an increased torque on each motor. The detection of this increased torque indicates a proper engagement and the absence of the increased torque indicates that the ISA bottom engagement features 610 have not successfully coupled with the carriage engagement features 1220.
• the software module may communicate the absence or completion of a proper engagement to surgical personnel. This communication may occur in numerous ways. Examples of possible ways a proper engagement may be communicated are, among other things, flashing a light on the surgical instrument manipulator 130 or changing a light of a first color on the surgical instrument manipulator 1 1 2 to a second color (such as red to green).
• FIG. 14 shows an embodiment of the ISA 300 and the surgical
• the surgical instrument manipulator 1 30 includes one or more carriage drivers 320 that provide rotary motion to drive a surgical instrument.
• the ISA includes a like number of ISA couplers 330 that transfer the rotary motion from the carriage drivers 320 to the surgical instrument.
• each carriage driver 320 includes two carriage engagement features 1220 in form of pockets.
• the corresponding ISA coupler 330 includes a like number of ISA bottom engagement features 610 in the form of bosses. Each ISA engagement feature 610 mates with a corresponding carriage engagement feature 1220 to provide a positive connection between the carriage driver 320 and the ISA coupler 330.
• carriage engagement features may be in form of bosses and the ISA bottom engagement features may be in the form of pockets.
• carriage engagement features may include both pockets and bosses and the ISA bottom engagement features may be in the form of bosses and pockets as necessary to mate with the corresponding carriage engagement features.
• FIG. 15 shows an embodiment of the ISA 300 and a surgical instrument 120 with the ISA and the surgical instrument rotated away from each other to show the surfaces that engage each other.
• the ISA couplers 330 engage corresponding instrument drivers 1500 to transfer the rotary motion from the carriage drivers 320 (Fig. 14) to the surgical instrument 120.
• each instrument driver 1500 includes two instrument engagement features 1520 in form of pockets.
• the corresponding ISA coupler 330 includes a like number of ISA top engagement features 600 in the form of bosses.
• Each ISA engagement feature 600 mates with a corresponding instrument engagement feature 1520 to provide a positive connection between the ISA coupler 330 and the instrument driver 1500. In other embodiments different numbers of engagement features may be used.
• instrument engagement features may be in form of bosses and the ISA top engagement features may be in the form of pockets.
• instrument engagement features may include both pockets and bosses and the ISA top engagement features may be in the form of bosses and pockets as necessary to mate with the corresponding instrument engagement features.
• One solution presented above discusses implementing a locking mechanism in the ISA 300 which restricts ability of the ISA couplers 330 to rotate during the engagement process, thereby ensuring that the friction caused by the ISA bottom engagement features 610 coming into contact with the carriage disks 320 did not prevent a proper engagement between the ISA bottom engagement features 610 and the carriage engagement features 1220.
• the motors may be limited as to the rotational speed of the carriage drivers 320.
• the rotational speed of the carriage drivers 320 By limiting the rotational speed of the carriage drivers 320, it can be ensured that the spring-loaded mechanism of the carriage drivers 320 will be sufficiently strong to engage the ISA bottom engagement features 610 with the carriage engagement features 1220.
• the limited rotational speed of the carriage drivers 320 allows the spring-loaded mechanism of the instrument drivers 1520 to reliably engage the ISA top engagement features 600.
• carriage drivers only the carriage drivers provide a spring-loaded mechanism that cause engagement of both the carriage engagement features with the ISA bottom engagement features and the ISA top engagement features with the instrument engagement features.
• a limitation of the rotational speed of the motors that drive the carriage drivers 320 may be controlled by a software module.
• the rotational speed of the motor may be limited by the applied voltage, current, and/or frequency of the current.
• the appropriate rotational speed of the carriage drivers 320 may be established by an analysis of the geometry and physics associated with the ISA couplers 330, the carriage and instrument drivers 320, 1520, and the associated spring-loaded mechanisms.
• the engagement feature configured as a
• pocket may be configured with an entry ramp to increase the ease of the process of mating with the engagement feature configured as a boss.
• the carriage 310 and the ISA 300 will be described. However, it should be understood that these features may also be used to couple the instrument 120 and the ISA 300.
• the engagement feature of the carriage 310 is configured as a pocket and the engagement figure of the ISA 300 is configured as a boss.
• the engagement feature of the carriage 31 0 may be configured as a boss and the engagement feature of the ISA 300 may be configured as a pocket.
• FIG. 16A an exemplary illustration of an ISA bottom
• boss 610 approaching a carriage pocket 1220 without an entry ramp is illustrated. It is seen in FIG. 16A that carriage pocket wall 1600 is at a 90- degree angle 1 621 in relation to the surface 121 0 of the carriage disk 320.
• the ISA bottom boss 610 will insert into the carriage pocket 1220 only when the two engagement features are in direct alignment.
• the size of the protrusion of the ISA bottom boss 61 0 will correspond almost exactly to size of the opening of the carriage pocket 1 220 to decrease the backlash that may arise during rotation of the carriage drivers 320 and the ISA couplers 330 after a successful proper engagement. Therefore, it is difficult for the ISA bottom boss 610 to be inserted into the carriage pocket 1220, especially when the carriage drivers 320 are rotating at a high speed.
• FIG. 16B an exemplary illustration of a failed attempt at coupling the ISA bottom boss 61 0 with the carriage pocket 1220 is illustrated. As is seen in FIG. 16B, the ISA bottom boss 610 may bypass the carriage pocket 1220, resulting in a failed attempt to couple the two engagement features.
• FIG. 17A an exemplary illustration of an ISA bottom boss 610 approaching a carriage pocket 1221 including an entry ramp 1720 is illustrated. It is seen in FIG. 17A that a wall of the carriage pocket 1221 includes an entry ramp 1 720 and a straight portion 1700.
• the entry ramp 1720 is seen to form an obtuse angle of more than 90 degrees in relation to the surface 1210 of the carriage disk 320 that supports the ISA bottom boss 610 before it engages the carriage pocket 1 221 .
• the entry ramp 1720 allows the ISA bottom boss 610 to begin insertion into the carriage pocket 1221 before the leading ISA boss wall 1770 reaches the trailing pocket wall 1 750.
• FIG. 17B an exemplary illustration of an ISA bottom boss 610 approaching a carriage pocket 1221 and using the entry ramp 1720 to begin insertion into the carriage pocket 1221 is shown.
• the ISA bottom boss 610 begins sliding down the entry ramp 1 720
• the ISA boss 1760 begins to enter carriage pocket 1 221 .
• the leading ISA boss wall 1770 comes in contact with the trailing pocket wall 1750 and the ISA bottom boss 61 0 is prevented from bypassing the carriage pocket 1 221 .
• the spring-loaded mechanism of the carriage driver 320 is then able to propel the insertion of the ISA bottom boss 610 into the carriage pocket 1221 .
• the carriage driver 320 contains a spring-loaded mechanism, the carriage driver 320 will rise from the carriage to cause the ISA bottom boss 61 0 to enter the carriage pocket 1221 .
• the angle 1721 of entry ramp 1720 in relation to the surface 1 210 of the carriage disk 320 shown is only one exemplary embodiment.
• the angle of the entry ramp may be more than or less than the angle 1 721 shown.
• the entry ramp 1720 will always form an obtuse angle with the surface 1210 of the carriage disk 320.
• the entry ramp 1720 should be configured so that the straight portion 1700 of the wall of the carriage pocket 1221 provides an adequate bearing surface to support the ISA bottom boss 610 when driven against the straight portion of the wall.
• the straight portion 1700 of the wall needs to be sufficiently high to prevent the ISA coupler 330 from disengaging from the carriage driver 320 when driven in the reverse direction from the direction for engagement.
• FIG. 18A an exemplary illustration of an ISA bottom
• boss 181 0 that includes an entry ramp 1820 approaching a carriage pocket 1220 is illustrated. It is seen in FIG. 18A that a trailing ISA boss wall 1840 wall includes an entry ramp 1820 that forms an obtuse angle of more than 90 degrees in relation to the lower surface 1830 of the ISA bottom boss 1810, the lower surface supporting the ISA coupler 330 on the surface 1210 of the carriage disk 320 before it engages the carriage pocket 1221 .
• FIG. 18B an exemplary illustration of the ISA bottom boss 181 0 approaching the carriage pocket 1 220 and using the entry ramp 1820 to begin insertion into the carriage pocket 1220.
• the entry ramp 1820 allows the ISA bottom boss 1810 to begin insertion into the carriage pocket 1220 before the leading ISA boss wall 1870 reaches the trailing pocket wall 1850.
• the leading ISA boss wall 1870 comes in contact with the trailing pocket wall 1850 and the ISA bottom boss 1810 is prevented from bypassing the carriage pocket 1220.
• the spring-loaded mechanism of the carriage driver 320 is then able to propel the insertion of the ISA bottom boss 61 0 into the carriage pocket 1220. As suggested by Figure 17B, if the carriage driver 320 contains a spring-loaded mechanism, the carriage driver 320 will rise from the carriage to cause the ISA bottom boss 1810 to enter the carriage pocket 1220.
• the angle of the entry ramp may be more than or less than the angle shown. However, the entry ramp 1820 will always form an obtuse angle with the lower surface 1830 of the ISA bottom boss 1810. It will be appreciated that the entry ramp 1820 should be configured so that the straight portion of the trailing ISA boss wall 1840 wall provides an adequate bearing surface to support the ISA bottom boss 610 when driven against the straight portion of the wall. At a minimum, the straight portion of the trailing ISA boss wall 1840 needs to be sufficiently high to prevent the ISA coupler 330 from disengaging from the carriage driver 320 when driven in

Landscapes

• Health & Medical Sciences (AREA)
• Life Sciences & Earth Sciences (AREA)
• Surgery (AREA)
• Engineering & Computer Science (AREA)
• Heart & Thoracic Surgery (AREA)
• Veterinary Medicine (AREA)
• Public Health (AREA)
• Biomedical Technology (AREA)
• General Health & Medical Sciences (AREA)
• Medical Informatics (AREA)
• Molecular Biology (AREA)
• Animal Behavior & Ethology (AREA)
• Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
• Robotics (AREA)
• Pathology (AREA)
• Oral & Maxillofacial Surgery (AREA)
• Physics & Mathematics (AREA)
• Electromagnetism (AREA)
• Biophysics (AREA)
• Radiology & Medical Imaging (AREA)
• Optics & Photonics (AREA)
• Surgical Instruments (AREA)
• Manipulator (AREA)
• Chemical & Material Sciences (AREA)
• Organic Chemistry (AREA)
• Polymers & Plastics (AREA)
• Medicinal Chemistry (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Computer Networks & Wireless Communication (AREA)
• Theoretical Computer Science (AREA)
• General Physics & Mathematics (AREA)
• Microelectronics & Electronic Packaging (AREA)
• Computer Hardware Design (AREA)
• Materials For Medical Uses (AREA)
• Mechanical Engineering (AREA)
• Accommodation For Nursing Or Treatment Tables (AREA)
• Endoscopes (AREA)

Priority Applications (8)

Applications Claiming Priority (16)

Related Child Applications (2)

Publications (2)

Family

ID=54067678

Family Applications (8)

Family Applications Before (2)

Family Applications After (5)

Country Status (7)

Cited By (2)

Families Citing this family (453)

Citations (5)

Family Cites Families (129)