WO2013035497A1 - 手術用器具 - Google Patents
手術用器具 Download PDFInfo
- Publication number
- WO2013035497A1 WO2013035497A1 PCT/JP2012/070599 JP2012070599W WO2013035497A1 WO 2013035497 A1 WO2013035497 A1 WO 2013035497A1 JP 2012070599 W JP2012070599 W JP 2012070599W WO 2013035497 A1 WO2013035497 A1 WO 2013035497A1
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- WO
- WIPO (PCT)
- Prior art keywords
- probe
- cutting
- instrument
- trabecular meshwork
- vitrectomy
- Prior art date
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/32—Surgical cutting instruments
- A61B17/3203—Fluid jet cutting instruments
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/32—Surgical cutting instruments
- A61B17/3205—Excision instruments
-
- 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
- A61F9/00736—Instruments for removal of intra-ocular material or intra-ocular injection, e.g. cataract instruments
- A61F9/00763—Instruments for removal of intra-ocular material or intra-ocular injection, e.g. cataract instruments with rotating or reciprocating cutting elements, e.g. concentric cutting needles
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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
- A61F9/00781—Apparatus for modifying intraocular pressure, e.g. for glaucoma treatment
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/18—Applying electric currents by contact electrodes
- A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
- A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
- A61N1/3601—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation of respiratory organs
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00535—Surgical instruments, devices or methods, e.g. tourniquets pneumatically or hydraulically operated
- A61B2017/00544—Surgical instruments, devices or methods, e.g. tourniquets pneumatically or hydraulically operated pneumatically
-
- 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
- A61B2090/0801—Prevention of accidental cutting or pricking
- A61B2090/08021—Prevention of accidental cutting or pricking of the patient or his organs
Definitions
- the present invention relates to a surgical instrument.
- Glaucoma is one of the major diseases of the eye and can cause blindness, so proper treatment is essential. Glaucoma occurs when intraocular pressure continues to be abnormally high over a long period of time, and the increase in intraocular pressure is caused by impaired outflow of aqueous humor. Therefore, for glaucoma, treatment for appropriately flowing out aqueous humor is performed.
- the trabeculotomy instrument described in Patent Document 1 is a flexible structure as a whole including the distal end portion where the trabeculectomy is performed, the operability may not be high. Further, in trabeculectomy surgery, the part to be excised is appropriately excised, and the part that is not excised is required to have a function of reliably preventing excision. It is thought that the structure for preventing excision is not clear.
- the problem to be solved by the present invention is to provide an ophthalmic surgical instrument that is excellent in operability and reliably prevents the removal of a portion that should not be excised.
- a surgical instrument is a surgical instrument used in trabeculectomy surgery, and includes a gripping part gripped by a practitioner and a rod shape from an end of the gripping part.
- a probe having rigidity arranged so as to extend to the outflow port, and the probe is formed on a side surface of the probe, and the outflow port flows out the washing liquid toward the trabecular meshwork which is a resection site.
- the washing liquid that has flowed out of the probe is collected as waste liquid, and a suction port that sucks the trabecular meshwork into the probe, a cutting unit that cuts the trabecular meshwork sucked into the suction port, and more than the suction port and the cutting unit. It is arranged on the distal end side of the probe and has a shape extending to the side surface where the suction port is formed at the distal end of the probe.
- the cutting portion and Schlemm Pipe outer wall and A vitreous body that is located between and protects the outer wall of the Schlemm's canal, which is a non-resected site, from excision and suction, and transmits power, sends out cleaning fluid, and collects waste fluid in vitrectomy surgery Connected to a power supply unit for vitrectomy in the ablation device, and a first delivery unit for sending power for cutting from the device to the cutting unit, and for vitrectomy in the vitrectomy device Connected to the second feeding part for sending the washing liquid from the vitrectomy device to the outlet and the suction part for vitrectomy in the vitrectomy device, And a third delivery section for sending the waste liquid sucked at the suction port and the cut trabecular meshwork to the vitrectomy device.
- the surgical instrument according to the present invention is an ophthalmic surgical instrument that has a probe having rigidity and excellent operability and excises the trabecular meshwork, and the trabecular meshwork is disposed at the distal end side of the probe.
- a protective part is provided between the cutting part and the Schlemm's outer wall to protect the Schlemm's outer wall from excision and suction. Therefore, the excision of Schlemm's outer wall is reliably suppressed while the trabecular meshwork is reliably excised. Therefore, a surgical instrument capable of performing an effective surgical treatment for glaucoma is realized.
- trabeculectomy for glaucoma patients can be performed by connecting the surgical instrument of the present invention to an apparatus for vitrectomy surgery. This contributes to simplification, space saving, and cost reduction of the medical system by combining the device part of the system for vitrectomy and the system for trabeculectomy that had been constructed separately. Then, there is a remarkable effect.
- the probe includes an inner cylinder portion disposed so as to share a longitudinal axis, and the cutting portion is formed on a side surface of the inner cylinder portion, so that the relative rotation motion of the inner cylinder portion relative to the probe or A cutting blade for cutting the excision site by translational movement may be provided.
- the inner cylinder part that is relatively movable inside the probe is provided, and the cutting blade provided in the inner cylinder part performs a cutting function by the relative movement of the inner cylinder part.
- the surgical instrument of the present invention is a surgical instrument used in trabeculectomy, and is formed on the outflow port through which the cleaning liquid flows out toward the trabecula as a resection site, and on the side surface of the probe.
- the cleaning liquid that has flowed out of the outlet is collected as waste liquid, and includes a suction port that sucks the trabecular meshwork into the probe, and a cutting portion that cuts the trabecular meshwork sucked into the suction port.
- the outer wall of Schlemm's canal which is a non-resected site, can be excised and aspirated by being positioned between the cut and the Schlemm's canal outer wall during trabeculectomy with the cut part.
- a protection unit for protecting, in a state attached to said probe by said mounting portion characterized in that and a regulation unit for adjusting the distance between the protective portion and the suction port.
- the surgical instrument of the present invention can be used by being attached to, for example, an existing ophthalmic surgical instrument by the configuration having the protective part and the attaching part. Therefore, there is a remarkable effect that it contributes to a large cost reduction in ophthalmic surgery.
- the distance between the protective part and the suction port can be adjusted, the distance can be adjusted to be suitable for the ophthalmic surgery to be performed, thereby contributing to appropriate surgery.
- the suction port can be positioned at the trabecular band to be excised with the protective part in the Schlemm's canal. A trabeculectomy can be performed.
- the figure which shows the surgical instrument in one Example of this invention The figure which shows the state connected to the control apparatus.
- the figure which shows 1st Embodiment of the surgical instrument of this invention The figure which shows the state which the inner cylinder part rotated in 1st Embodiment.
- the side view which shows 2nd Embodiment of the surgical instrument of this invention The side view which shows 3rd Embodiment of the surgical instrument of this invention.
- the side view which shows 4th Embodiment of the surgical instrument of this invention The figure which shows the state which the inner cylinder part moved in 4th Embodiment.
- the figure which shows the example of the mode of the glaucoma surgery using the surgical instrument of this invention The enlarged view of FIG.
- FIG. 11 The figure which looked at FIG. 11 from the top.
- the enlarged view of FIG. The figure which shows the example of the procedure prior to FIG. 10 in glaucoma surgery.
- FIG. 3 is a partial cross-sectional view of an attachment type surgical instrument.
- FIG. 1 shows a surgical instrument 1 (hereinafter, instrument) in one embodiment of the present invention.
- instrument 1 is an instrument that is used particularly in excision of trabecular meshwork in glaucoma surgery, and includes a probe 2, a body part 3, and a cable tube part 4.
- the probe 2 is a part that extends from the distal end side of the body part 3 and is inserted into the patient's eye.
- the probe has a cylindrical shape that is linearly formed from the body 4, and as shown in the enlarged portion surrounded by the one-dot chain line, the probe 2 has a small-diameter portion 2 a with a small diameter located on the tip side, and the body 3.
- the large-diameter portion 2b on the side.
- the diameter of the probe 2 (small diameter part 2a, large diameter part 2b) may be a numerical value suitable for excision of the trabecular meshwork.
- the small-diameter portion 2 a of the probe 2 has a hole portion 20 formed in the side surface near the tip of the hollow cylindrical portion 20, and a protective portion 21 on the side surface opposite to the hole portion 20 and the tip end surface side.
- the tip of the probe 2 is inserted into the trabecular meshwork at the time of surgery.
- the inside of the cylindrical part 20 is connected to a suction mechanism as will be described later, and a part of the trabecular meshwork is sucked into the hole part 20.
- a cutter (cutting portion) is provided inside the hole 20, and the trabecular meshwork sucked by the cutter is cut and sucked toward the body portion 3.
- the cleaning liquid soiled by the operation is also sucked from the hole portion 20 toward the body portion 3.
- the large-diameter portion 2b of the probe 2 has a hole 23 on the side surface near the tip.
- the hole portion 23 is connected from a portion where the cleaning liquid is supplied, and the cleaning liquid flows out (spouts and injects) from the hole portion 23 toward the distal end of the probe, that is, toward the periphery of the treatment position during surgery.
- the material of the probe 2 may be a metal or a rigid resin, for example.
- the body part 3 is a part gripped by the practitioner at the time of surgery, and has, for example, a cylindrical shape suitable for gripping and includes a driving part for driving a cutting part (described later).
- the excised trabecular meshwork, the cleaning liquid, and the dirty waste liquid are sent from the probe (or to the probe) through the inside of the body part 3.
- the cable tube portion 4 extends from the rear end side of the body portion 3 and relates to power supply, cleaning liquid supply, excision site, and waste liquid recovery.
- the cable / tube section 4 may be provided with a plurality of cables or tubes. For example, as shown in FIG. 1 and the like, three cables (or the power cable 40), that is, a power cable 40, a cleaning liquid (cleaning fluid) supply tube 41, and a waste liquid tube 42 are used. It is sufficient to provide 4) if each of the bipolar wires is counted.
- the power cable 40 supplies power for excision processing at the tip of the probe 2 as will be described later.
- the cleaning liquid supply tube 41 is a tube for sending the cleaning liquid to the treatment site during the trabeculectomy.
- the waste liquid tube 42 is a tube for collecting and discarding the excised trabecular meshwork, the dirty waste liquid after washing the surgical site, bleeding from the surgical site, and the like.
- the instrument 1 is used by being connected to the control device 5 during surgery.
- the control device 5 includes a power source 50 (power supply unit), a cleaning liquid supply unit 51, and a suction unit 52 as main components.
- the power supply 50 supplies power to the instrument 1 when the power cable 40 of the instrument 1 is connected.
- the instrument 1 drives a cutting part by the supplied electric power.
- the power source 50 may convert commercial power into power suitable for the instrument 1 (for example, a relatively low voltage value) and supply the converted power to the instrument 1.
- the cleaning liquid supply unit 51 supplies the cleaning liquid to the instrument 1 by connecting the cleaning liquid tube 41 of the instrument 1.
- the suction part 52 sucks the waste liquid, the excision site and the like through the instrument 1 by connecting the waste liquid tube 42 of the instrument 1.
- 3 to 8 are cross-sectional views showing detailed configurations of the instrument 1 in a plurality of embodiments. The configuration and operation of the instrument 1 in each embodiment will be described with reference to these drawings. 3 to 8 are schematic diagrams, for example, the length in the illustrated vertical direction is compressed.
- FIG. 3 shows an axial sectional view of the probe 2 and the body portion 3 in the first embodiment.
- the probe 2 includes the cylindrical portion 20 shown in FIG. 1 as an outer cylindrical portion (outer cylindrical portion), and an inner cylindrical portion 25 (inner cylindrical portion) inside thereof.
- the inner cylinder part 25 is arranged so as to be able to move relative to the outer cylinder part (cylindrical part 20).
- the inner cylinder portion 25 has a cylindrical shape with a hollow inside, and a hole portion 24 is also formed in the inner cylinder portion 25 at a position overlapping the inside of the hole portion 22 of the outer cylinder portion 20 in the positional relationship of FIG. .
- a passage formed inside the inner cylinder portion 25 connects from the hole portion 24 to the waste liquid tube 41.
- a protection part 21 is arranged over the right side and the upper side of the outer cylinder part 20 in the figure.
- the protection part 21 may have a plate shape bent along the outer shape of the outer cylinder part 20, for example.
- the probe 2 may be configured to be inserted and fixed in a hole formed in the body 3, for example.
- the protection part 21 should just be made into the form inserted and fixed to the hole formed in the taper part of the boundary of the small diameter part 2a and the large diameter part 2b, for example.
- the cylindrical portion 20 (outer cylinder portion) is formed integrally with the large diameter portion 2b.
- the cylindrical portion 20 (outer cylinder portion) is formed separately from the large diameter portion 2b and has a large diameter. It may be inserted into the portion 2b.
- a passage for the cleaning liquid that penetrates to the cleaning liquid tube through the hole portion 23 and the body portion 3 is formed.
- the cleaning liquid is supplied from the cleaning liquid supply section 51 of the control device 5 together with an appropriate water pressure, passes through the body section 3 and the probe 2, and is ejected from the hole section 23 around the surgical site.
- the suction part 52 of the control device 5 sucks the inside of the holes 22 and 24 so that the adjacent trabecular meshwork (fiber column) A part of the whole belt) is sucked.
- the cleaning liquid for cleaning the surgical site is also sucked into the holes 22 and 24.
- a motor 30 is provided in the body 3.
- the motor 30 is arranged at the center position of the body portion 3 so as to share the axis of the probe 2 and the rotation axis.
- the motor 30 is supplied with electric power from the control device 5 through the electric power cable 40 and causes the inner cylinder portion 25 to rotate around the axis of the probe 2.
- FIG. 4 shows a state in which the inner cylinder portion 25 is rotated about 90 degrees.
- a cutter 24a is formed at the end of the hole 24 of the inner cylinder 25 (for example, the end in the left-right direction in the figure), and the inner cylinder 25 rotates with respect to the outer cylinder 20, so that the hole is as described above.
- the trabecular meshwork sucked into 22 and 24 is cut by the cutter 24a.
- a cutter may also be formed in the hole portion 22 of the outer cylinder portion 20. The cut trabecular meshwork and the waste liquid are sucked to the suction part 52 through the passage in the inner cylinder part 25 and further through the waste liquid tube.
- the trabecular meshwork and waste liquid stored in the suction unit 52 may be discarded by an appropriate method, for example.
- FIG. 5 shows another embodiment of the instrument 1.
- the parts indicated by the same reference numerals as those in FIGS. 3 and 4 are the same parts, and redundant description is omitted.
- an air cylinder mechanism is provided instead of the motor 30.
- the control device 5 ′ is equipped with a pump 53 instead of the power supply unit 50.
- the appliance 1 is equipped with an air tube 40 ′ that supplies air as power instead of the power cable 40.
- the instrument 1 has a cylinder 31 formed in the body portion 3 and includes a piston 32 and a screw portion 33.
- the cylinder 31 is formed in a cylindrical shape that shares an axis with the probe 2, and a piston 32 is arranged in the cylinder 31 so as to be movable in the vertical direction in the figure.
- the piston 32 is formed with a thread groove, and is engaged with the thread groove of the thread portion 33.
- the screw part 33 is fixed to the inner cylinder part 25.
- FIG. 6 shows a third embodiment of the instrument 1.
- the instrument 1 has a cylinder 34 formed in the body portion 3, and includes a piston 35, a gear 36, and a rack 37.
- the cylinder 34 is formed in a cylindrical shape whose axial direction is orthogonal to the axial direction of the probe 2, and is disposed in the cylinder 34 so that the piston 35 can move in the horizontal direction in the figure.
- the rack 37 is fixed to the piston 35 and moves integrally with the piston 37 from side to side.
- the gear 36 forms a cam mechanism with the rack 37 and converts the translational motion of the rack 37 into a rotational motion.
- the gear 36 is fixed to the inner cylinder portion 25.
- the instrument 1 moves in the left-right direction as shown in the drawing, and the rack 37 moves in the left-right direction together with the movement. Is converted into rotational movement of the gear 36 by the cam mechanism between the rack 37 and the gear 36. As the gear 36 rotates, the inner cylinder portion 25 also rotates. Thereby, the cutter 24 a of the hole 24 of the inner cylinder part 25 cuts the trabecular meshwork sucked into the hole 24.
- FIG. 3 and FIG. 4 is a rotational motion at a constant speed in the same direction, and the rotational motion of the inner cylindrical portion 25 in FIGS. 5 and 6 is a predetermined rotational angle in the forward and reverse directions. Repeat the width rotation.
- FIGS. 7 and 8 show a fourth embodiment of the instrument 1.
- the inner cylinder part 25 moves in the vertical direction in the figure.
- the instrument 1 is formed with a cylinder 31 and includes a piston 38.
- the cylinder 31 is formed in a cylindrical shape sharing an axis with the probe 2, and a piston 38 is disposed in the cylinder 31 so as to be movable in the vertical direction in the figure.
- the piston 38 is fixed to the inner cylinder portion 25.
- FIG. 8 shows a state where the inner cylinder portion 25 has moved downward in the figure.
- the cutter 24 a of the hole 24 of the inner cylinder part 25 cuts the trabecular meshwork sucked into the hole 24.
- the cutter 24a may be formed at the upper end of the hole 24 of the inner cylinder 25. Or the moving distance of the inner cylinder part 25 is lengthened, the cutter 24a is formed in the edge part of the upper and lower sides in the hole 24 of the inner cylinder part 25, and the trabecular meshwork is cut
- the hole 22 of the outer cylinder part 25 may be provided with a cutter.
- the instrument 1 having the above-described configuration is used for resection of trabecular meshwork in glaucoma surgical treatment.
- aqueous humor is generated in the ciliary body located in the lower portion of the iris 104 of the eye.
- this aqueous humor flows out of a corner in the circumferential direction of the anterior chamber 101 after being pushed to the crystalline lens 105.
- the trabecular meshwork 102 and Schlemm's canal 103 exist at the corners.
- the trabecular meshwork 102 serves as a filter that limits the outflow of aqueous humor.
- Schlemm's canal 103 has a structure for the outflow of aqueous humor.
- the surgical instrument 1 is an effective instrument in the surgical treatment for glaucoma.
- An example of a surgical method using the instrument 1 is as follows.
- the microscope 30 In preparation for the operation, tilt the microscope 30 to 45 degrees toward the surgeon so that the trabecular meshwork can be seen from the front through the angle mirror.
- the cornea is incised with a knife (for example, 1.7 mm), the aqueous humor is slightly removed, and a viscoelastic substance is injected. In order to make it easier to see, it is especially good to fill the corners.
- the probe 2 After confirming the trabecular meshwork by placing the angle mirror, the probe 2 is inserted into the Schlemm's canal 103 to start excision. As shown in FIG. 10, the instrument 1 is moved toward the side in which the hole 21 is formed in the Schlemm's canal 103. At this time, the direction in which the instrument 1 moves forward is the same as the direction in which the protection part 21 is extended.
- Rotating in the clockwise direction and then counterclockwise makes it possible to excise from 90 to 120 degrees. (If cataract surgery is performed at the same time, spread the 1.7 mm corneal incision to 3.0 mm and insert the lens.) Finally, wash the viscoelastic material and reflux hemorrhage and remove it completely. Make sure that the aqueous humor does not leak through. In order to maintain the intraocular pressure to some extent, if necessary, the wound is sutured by one needle (for example, 10-0 nylon).
- Advantages of this operation include, for example, low invasiveness that the incision of the cornea 100 is small and Schlemm's canal is not easily damaged, and certainty that the trabecula can be cut while actually viewed.
- early glaucoma with high intraocular pressure of 21 mmHg or more in the early and middle stages may be an early surgical indication rather than increasing eye drops.
- the trabecular meshwork is excised (curetted) using the instrument 1 of the present invention (note that the expression of trabeculectomy is excised from the anterior chamber side to the Schlemm's canal wall in a predetermined angle range, Including exposure of the trabecular meshwork).
- the Schlemm tube outer wall is protected by the protection part 21.
- the protection unit 21 can have various shapes. 11 to 13A show an embodiment of the protection unit 21. 11 is a perspective view, FIG. 12 is a view of FIG. 11 viewed from above, and FIG. 13A is a view of FIG. 11 viewed from the hole 22 side. As described above, the protection portion 21 is disposed so as to contact the side surface opposite to the side surface where the hole portion 22 is formed in the small-diameter portion 2a of the probe 2, and bends along the tip shape of the probe 2, It extends in a direction substantially parallel to the tip surface.
- the front part 21a of the protection part 21 may be triangular (or tapered) (however, the corners may be curved). In this shape, as shown in FIG. 10, when the probe 2 is advanced along the Schlemm's tube 103, the tip of the protection portion 21 is tapered in the traveling direction, so that the probe 2 can be smoothly advanced.
- the protection part 21 also serves as a guide part for advancing the tip of the probe along the Schlemm's canal.
- the tip 21b of the protection part 21 may have a sharp shape. This shape is suitable for inserting the probe by inserting the tip 21b of the protective portion 21 into the trabecular meshwork when the tip of the probe is advanced into the trabecular meshwork at the beginning of surgery as shown in FIG. is there.
- the upper end of the protection part 21 in the figure may be round and concave. This is suitable because it does not damage the Schlemm's canal along the curved shape of the Schlemm's canal during surgery.
- the shape of the upper end of the protection part 21 may be a mountain-shaped concave shape.
- the illustration upper end of a protection part is good also as a flat shape.
- the shape of the upper end of the protection part 21 in the figure is not limited to the examples of FIGS. 13A and 13B, and may be a shape that protects the non-cut part and serves as a guide part.
- the distance d from the protective part 21 (the upper end) to the hole part 22 is within the range from when the protective part 21 enters the trabecular meshwork until it contacts the Schlemm's canal. It sets so that the part 22 may come to the position of the trabecular meshwork which should be excised.
- the position of the trabecular meshwork to be excised may include, for example, the side of the trabecular meshwork in the Schlemm's canal that is close to the center of the eye (the side where the probe is inserted into the Schlemm's canal).
- the glaucoma surgical instrument 1 of the present invention can coexist with existing medical devices.
- the mechanism is shown in FIG.
- FIG. 14 shows a surgical system for vitrectomy.
- the system includes a vitrectomy control device 500 and a vitrectomy instrument 100.
- the vitrectomy control device 500 includes a vitrectomy power supply unit 50 (or pump 53), a cleaning liquid supply unit 51, and a suction unit 52.
- the vitrectomy device 100 includes a cable or a tube, and connects them to the power supply unit 50 (or pump 53), the cleaning liquid supply unit 51, and the suction unit 52, so that the excision unit of the vitrectomy device 100 is obtained.
- Power is supplied to drive the cutter for excision of the affected area (vitreous body), cleaning fluid is supplied to the surgical site, and the excised site (vitreous body) and the waste liquid returned from the surgical site are aspirated and collected .
- a vitrectomy operation using the vitrectomy instrument 100 becomes possible.
- the function required for the trabeculectomy control device 5 (5 ') is close to the function of the existing vitrectomy control device 500, and both devices can be used together. It is. That is, the above-described control device 5 (5 ') for the instrument 1 of the present invention can also be used (substitute) by the vitrectomy control device 500 of FIG. This simplifies the system in ophthalmology, saves space, and reduces costs by combining the device part of the system for vitrectomy and the system for trabeculectomy that had been constructed separately. It can contribute greatly. In addition, the apparatus which has not only the vitrectomy control apparatus 500 but another similar function may be used.
- the instrument 1 may be used for a vitreous resection operation. Since the instrument 1 has equipment necessary for vitrectomy, high versatility capable of dealing with both glaucoma and vitreous can be realized.
- FIG. 17 shows a perspective view of an attachment-type instrument in which only the protective part is attached.
- the object to which this is attached may be, for example, the vitreous surgery instrument 200 shown in FIG. Below, the case where it attaches to the instrument 200 is demonstrated.
- the instrument 200 is assumed to have the same structure and shape as the instrument 1 except that the protective part is not formed.
- the probe of the instrument 200 has a small diameter portion 220 and a large diameter portion 230, a hole portion 221 is formed in the small diameter portion 220, and a hole is formed in the tapered portion from the large diameter portion 230 to the small diameter portion 220.
- a portion 231 is formed.
- the cleaning liquid is supplied from the hole portion 231 to the treatment portion.
- the hole 221 is equipped with a cutter, sucks the trabecular meshwork (or vitreous body), cuts it with the cutter, and sends it to the control device together with the waste liquid.
- the attachment type surgical instrument 300 (hereinafter referred to as instrument) shown in FIG. 17 includes a distal end side cylindrical portion 310 (attachment portion), a trunk side cylindrical portion 320 (attachment portion), and a connection portion 330 (adjustment portion).
- a protection portion 311 is formed on the distal end side cylindrical portion 310, and the distal end side cylindrical portion 310, the body side cylindrical portion 320, and the connection portion 330 are arranged in this order from the distal end side of the probe of the instrument 200.
- a through-hole 312 into which the probe of the instrument 200 is inserted is formed in the center portion in the axial direction in the distal end side cylindrical portion 310, the trunk side cylindrical portion 320, and the connection portion 330.
- FIG. 18 is a partial cross-sectional view of the instrument 300 attached to the instrument 200, that is, the instrument 200 inserted into the through hole 312.
- the instrument 300 includes a structure for positioning the protector 311 together with a structure for attaching to the instrument 200. These are described below.
- the flange portion 312 and the fitting portion 313 are formed in the distal end side cylindrical portion 310.
- the flange portion 312 is formed in a shape protruding outward in the circumferential direction on the outer peripheral surface of the distal end side cylindrical portion 310.
- the fitting portion 313 is formed so that a concave shape and a convex shape in the axial direction are repeated along the circumferential direction at the lower end in the figure of the distal end side cylindrical portion 310, that is, the end portion on the body side.
- connection portion 330 is formed with a recess 332 and a thread groove portion 331.
- the concave portion 332 is a concave shape formed along the circumferential direction on the inner peripheral surface of the connection portion 330 and is fitted to the flange portion 312 of the distal end side cylindrical portion 310. Thereby, the front end side cylindrical part 310 and the connection part 330 can slide in the circumferential direction.
- the thread groove portion 331 is a thread groove formed in the lower part of the drawing from the concave portion 332 on the inner peripheral surface of the connection portion 330.
- the trunk side cylindrical portion 320 includes a thread groove portion 321, a fitting portion 323, and a bolt 322.
- the thread groove portion 321 is a thread groove formed on the outer peripheral surface of the body side cylindrical portion 320 and is screwed with the thread groove portion 331 of the connection portion 330. Thereby, by rotating the connecting portion 330 about the axis, the connecting portion 330 and the body side cylindrical portion 320 are relatively moved in the vertical direction in the drawing.
- the fitting portion 323 is formed so that a concave shape and a convex shape in the axial direction are repeated along the circumferential direction on the upper end side of the trunk side cylindrical portion 320 in the figure, and the fitting portion 313 of the distal end side cylindrical portion 310 is formed. Mates with. As a result, the body side cylindrical portion 320 and the front end side cylindrical portion 310 can be relatively moved in the vertical direction in the drawing while the fitting portions 313 and 323 are fitted.
- the bolt 322 is screwed into a through hole formed in the side surface of the trunk side cylindrical portion 320.
- the body side cylindrical portion 320 is fixed (positioned) to the instrument 200 by tightening the bolt 322 in a state where the instrument 200 is inserted into the instrument 300 and is in an appropriate position. Note that the bolt 322 may not be provided, and the body-side cylindrical portion 320 may be fixed by being press-fitted with an appropriate pressure.
- the connecting portion 330 When the connecting portion 330 is rotated clockwise around the axis while the trunk-side cylindrical portion 320 is fixed to the instrument 200 by the bolt 322, the trunk-side cylindrical portion 320 is fixed. It moves upward in the figure while moving. Since the flange portion 312 and the concave portion 332 are fitted, the distal end side cylindrical portion 310 also moves upward in the drawing as the connecting portion 330 moves upward. During the upward movement of the distal end side cylindrical portion 310, the rotation of the distal end side cylindrical portion 310 around the axis is restricted (prohibited) by the fitting of the fitting portions 313 and 323. Therefore, the distal end side cylindrical portion 310 does not rotate but translates upward in the drawing. Naturally, when the connecting portion 330 is rotated in the opposite direction, the distal end side cylindrical portion 310 is translated downward in the figure.
- the distal end side cylindrical portion 310 is It moves in the vertical direction in the figure.
- the protective part 311 can be appropriately positioned by adjusting the rotation angle of the connection part 330. That is, the distance (d in FIG. 15) from the protective portion 311 (the upper end thereof) to the hole 221 can be adjusted appropriately.
- Such an attachment-type instrument 300 can be used by attaching to an existing ophthalmic surgical instrument (for example, an ophthalmic surgical instrument or a glaucoma instrument, but may be another ophthalmic surgical instrument). There is an effect of cost reduction.
- the treatment of rotating the connection portion 330 and appropriately adjusting the distance from the protection portion 311 (the upper end thereof) to the hole portion 221 may be performed manually by a practitioner (operator). Therefore, it may be performed by a machine.
- An example of a device for this purpose is shown in FIG.
- the apparatus 400 includes a gripping unit 401, clamping units 402 and 403, a motor 410, a measuring unit 420, and a control unit 430 as main structures.
- the grip part 401 is a part that grips the connection part 330 from the outside in the radial direction.
- the gripper 401 may be arranged at intervals in the circumferential direction or over the entire circumference.
- the sandwiching portions 402 and 403 are rod-shaped portions, and are movable in the horizontal direction in the figure. As shown in FIG. 19, the upper end (right end in the figure) of the protection part 311 and the upper end (right end in the figure) of the hole 221 are connected. Clamp (with appropriate pressure).
- the motor 410 is driven, for example, as a step motor so that the gripper 401 rotates by a commanded angle around the axis.
- the distance between the respective tips of the measurement unit 420 and the clamping units 402 and 403 is measured.
- a measurement method a known electronic measurement method may be used.
- the control unit 430 has the same structure as an ordinary computer, that is, a CPU for information processing such as various calculations, a RAM of a temporary storage unit as a work area of the CPU, a ROM for storing various necessary information such as programs, and the like. . While monitoring the measurement result of the measurement unit 420, the control unit 430 uses a motor to adjust the rotation angle so that the distance from the protection unit 311 (the upper end) to the hole 221 becomes an optimum distance in the trabeculectomy. Command to 410.
- This control by the control unit 430 may be, for example, feedback control. That is, the measurement value in the measurement unit 420 is fed back to calculate a difference from the target value (target distance), and the calculation result is input to an appropriately designed controller, and the output is input to the motor 410. And it is sufficient. By such control, the distance from the protective part 311 (the upper end) to the hole part 221 can be adjusted to an optimum distance.
- FIGS. 20 is a perspective view of a second example of an attachment-type surgical instrument
- FIG. 21 is a perspective view of a third example of the attachment-type surgical instrument
- FIG. 22 is a side view of FIG. 20 or FIG. It is the figure seen from.
- the example of FIGS. 20 to 22 is a simpler form than the example of FIG. 17 and the like, and is a form that is attached only to the tip of an existing instrument (for example, described in the case of the instrument 200).
- the instrument 300a shown in FIG. 20 has a protection portion 311 above the bending portion 340 that is curved and extended on both the left and right sides.
- the protection part 311 may have the same shape as the protection part 21 described above.
- the instrument 300a is mounted from the distal end side of the instrument 200, for example, so that the probe of the instrument 200 is inserted into the bending portion 340.
- the fixation of the instrument 300a to the instrument 200 may be performed, for example, by pressing the probe of the instrument 200 into the bending portion 340.
- the bending portion 340 may be fixed to the instrument 200 by crimping (pressing and deforming) the bending portion 340 from the outside with an instrument such as pliers.
- an adhesive (adhesive material) layer may be formed inside the curved portion 340 and fixed to the instrument 200 by adhesion (adhesion).
- the instrument 21 has a protective part 311 formed above a cylindrical part 341 of a cylindrical shape in the instrument 300b shown in FIG.
- the instrument 300b is mounted from the distal end side of the instrument 200, for example, so that the probe of the instrument 200 is inserted into the cylindrical portion 341.
- the fixation of the instrument 300b to the instrument 200 may be performed, for example, by pressing the probe of the instrument 200 into the cylindrical portion 341. Or after inserting the probe of the instrument 200 in the cylindrical part 341, the form fixed to the instrument 200 by crimping (pressing and deform
- an adhesive (adhesive material) layer may be formed inside the cylindrical portion 341 and fixed to the instrument 200 by adhesion (adhesion).
- a plate-shaped length adjusting portion 311 a is formed on the lower side of the protective portion 311 in the instruments 300 a and 300 b.
- the protection unit 311 The distance d from the upper end to the inhalation port 22 is set to a length suitable for trabeculectomy in glaucoma surgery in the above-described sense.
- the thickness of the length adjusting unit 311a is set in accordance with the dimensions of the existing instrument 200 so as to satisfy this requirement.
- a glaucoma surgical instrument can be created at low cost by attaching the instruments 300a and 300b having the simple configuration described above to an existing instrument (not limited to the instrument 200).
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- Ophthalmology & Optometry (AREA)
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- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
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Abstract
Description
2 プローブ
3 胴体部(把持部)
4 ケーブル・チューブ部
40 電力ケーブル(第1送出部)
40’ エアチューブ(第1送出部)
41 洗浄液チューブ(第2送出部)
42 廃液チューブ(第3送出部)
Claims (3)
- 線維柱帯切除手術で使用される手術用器具であって、
施術者が把持する把持部と、
その把持部の端部から棒状に延びるように配置された剛性を有するプローブと、
を備え、前記プローブは、
切除部位である線維柱帯に向けて洗浄液を流出する流出口と、
前記プローブの側面に形成されて、前記流出口から流出した洗浄液を廃液として回収するとともに、線維柱帯をプローブ内部へ吸引する吸引口と、
その吸引口へ吸引された線維柱帯を切断する切断部と、
前記吸引口および切断部よりも前記プローブの先端側に配置されて、前記プローブの先端において前記吸引口が形成された側面の側に延設された形状を有し、前記切断部による線維柱帯切除中に、前記切断部とシュレム管外壁との間に位置することで、非切除部位であるシュレム管外壁を切除および吸引から保護する保護部と、を備え、
硝子体切除手術における動力の伝達と洗浄液の送出と廃液の回収とを行う硝子体切除用装置における硝子体切除用の動力供給部に接続されて、その装置から前記切断部に切断のための動力を送るための第1送出部と、
前記硝子体切除用装置における硝子体切除用の洗浄液供給部に接続されて、その硝子体切除用装置から前記流出口に洗浄液を送るための第2送出部と、
前記硝子体切除用装置における硝子体切除用の吸引部に接続されて、その硝子体切除用装置へ前記吸引口で吸引された廃液および切断された線維柱帯を送るための第3送出部と、
を備えたことを特徴とする手術用器具。 - 前記プローブ内部に長手方向軸を共有するように配置された内筒部を備え、
前記切断部は、その内筒部の側面に形成されて、プローブに対する内筒部の相対的な回転運動または並進運動によって切除部位を切断する切断刃を備えた請求の範囲第1項に記載の手術用器具。 - 線維柱帯切除手術で使用される手術用器具であって、
切除部位である線維柱帯に向けて洗浄液を流出する流出口と、前記プローブの側面に形成されて、前記流出口から流出した洗浄液を廃液として回収するとともに、線維柱帯をプローブ内部へ吸引する吸引口と、その吸引口へ吸引された線維柱帯を切断する切断部と、を備えた剛性を有するプローブに、前記手術用器具を取り付けるための取り付け部と、
前記吸引口および切断部よりも前記プローブの先端側に配置されて、前記プローブの先端において前記吸引口が形成された側面の側に延設された形状を有し、前記切断部による線維柱帯切除中に、前記切断部とシュレム管外壁との間に位置することで、非切除部位であるシュレム管外壁を切除および吸引から保護する保護部と、
前記取り付け部によって前記プローブに取り付けられた状態で、前記保護部と前記吸引口との間の距離を調節する調節部と、
を備えたことを特徴とする手術用器具。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP12830334.4A EP2754427B1 (en) | 2011-09-06 | 2012-08-13 | Surgical instrument |
US14/238,117 US20140194916A1 (en) | 2011-09-06 | 2012-08-13 | Surgical instrument |
CN201280042708.2A CN103781445B (zh) | 2011-09-06 | 2012-08-13 | 手术用器具 |
KR1020147004141A KR101626103B1 (ko) | 2011-09-06 | 2012-08-13 | 수술용 기구 |
IL230888A IL230888A0 (en) | 2011-09-06 | 2014-02-09 | surgical instrument |
US15/654,276 US10463385B2 (en) | 2011-09-06 | 2017-07-19 | Surgical instrument |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011-193780 | 2011-09-06 | ||
JP2011193780A JP5000000B1 (ja) | 2011-09-06 | 2011-09-06 | 手術用器具 |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/238,117 A-371-Of-International US20140194916A1 (en) | 2011-09-06 | 2012-08-13 | Surgical instrument |
US15/654,276 Division US10463385B2 (en) | 2011-09-06 | 2017-07-19 | Surgical instrument |
Publications (1)
Publication Number | Publication Date |
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WO2013035497A1 true WO2013035497A1 (ja) | 2013-03-14 |
Family
ID=46793948
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Application Number | Title | Priority Date | Filing Date |
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PCT/JP2012/070599 WO2013035497A1 (ja) | 2011-09-06 | 2012-08-13 | 手術用器具 |
Country Status (7)
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US (2) | US20140194916A1 (ja) |
EP (1) | EP2754427B1 (ja) |
JP (1) | JP5000000B1 (ja) |
KR (1) | KR101626103B1 (ja) |
CN (1) | CN103781445B (ja) |
IL (1) | IL230888A0 (ja) |
WO (1) | WO2013035497A1 (ja) |
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US8529622B2 (en) | 2010-02-05 | 2013-09-10 | Sight Sciences, Inc. | Intraocular implants and related kits and methods |
ES2961369T3 (es) | 2012-03-20 | 2024-03-11 | Sight Sciences Inc | Sistemas de entrega ocular |
JP5458205B1 (ja) * | 2013-06-28 | 2014-04-02 | 株式会社中京メディカル | 手術用器具 |
US10299958B2 (en) | 2015-03-31 | 2019-05-28 | Sight Sciences, Inc. | Ocular delivery systems and methods |
DE102015208646A1 (de) * | 2015-05-08 | 2016-11-10 | Frank Zastrow | Chirurgisches Handgerät sowie eine Schutzeinrichtung |
JP6770291B2 (ja) * | 2015-09-01 | 2020-10-14 | マニー株式会社 | 硝子体手術用プローブ |
CN105662700A (zh) * | 2016-01-07 | 2016-06-15 | 佛山市禾才科技服务有限公司 | 一种双液流管的眼科手术刀 |
US10555834B2 (en) * | 2016-07-11 | 2020-02-11 | Novartis Ag | Vitrectomy probe with rotary cutter and associated devices, systems, and methods |
EP3563815A4 (en) * | 2016-12-27 | 2020-05-27 | Rohto Pharmaceutical Co., Ltd. | SURGICAL INSTRUMENT |
CN107174399B (zh) * | 2017-05-27 | 2019-07-12 | 天津优视眼科技术有限公司 | 一种内路实施的施莱姆氏管手术输送系统 |
WO2019160508A1 (en) * | 2018-02-19 | 2019-08-22 | Singapore Health Services Pte Ltd | Method and apparatus for shearing tissue at a target surgical site |
EP3856318A4 (en) * | 2018-09-28 | 2022-06-15 | Flow Medical Corporation | CATHETER APPARATUS |
GB2581316B (en) * | 2018-11-08 | 2023-08-09 | Nachum Zvi | Device for removing liquid from an eye of a subject |
US11504270B1 (en) | 2019-09-27 | 2022-11-22 | Sight Sciences, Inc. | Ocular delivery systems and methods |
JP2021137326A (ja) | 2020-03-05 | 2021-09-16 | 株式会社中京メディカル | 眼科手術用器具 |
CN115590677A (zh) * | 2022-10-20 | 2023-01-13 | 微创视神医疗科技(上海)有限公司(Cn) | 小梁网切除设备 |
JP7411297B1 (ja) | 2023-08-28 | 2024-01-11 | 株式会社トラベクター | 眼科手術用器具、眼内切除用部材及びその製造方法 |
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- 2012-08-13 US US14/238,117 patent/US20140194916A1/en not_active Abandoned
- 2012-08-13 KR KR1020147004141A patent/KR101626103B1/ko active IP Right Grant
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Also Published As
Publication number | Publication date |
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US10463385B2 (en) | 2019-11-05 |
KR20140057274A (ko) | 2014-05-12 |
EP2754427A1 (en) | 2014-07-16 |
US20140194916A1 (en) | 2014-07-10 |
KR101626103B1 (ko) | 2016-05-31 |
JP2013052168A (ja) | 2013-03-21 |
EP2754427B1 (en) | 2019-04-03 |
CN103781445B (zh) | 2015-11-25 |
EP2754427A4 (en) | 2015-04-22 |
US20170311970A1 (en) | 2017-11-02 |
JP5000000B1 (ja) | 2012-08-15 |
IL230888A0 (en) | 2014-03-31 |
CN103781445A (zh) | 2014-05-07 |
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