CN211862877U - Instrument assembly for OLIF operation - Google Patents

Abstract

The utility model belongs to the technical field of the medical instrument technique and specifically relates to an apparatus subassembly for OLIF operation is related to, include L shape direction drag hook, S-shaped abdominal cavity drag hook, nerve stripper, centrum distractor, bone pilot pin, two bulb spanners, L shape direction drag hook configuration quantity be no less than two. The utility model discloses the cooperation is used and can be drawn back smoothly and be close to abdominal musculature in OLIF operation, exposes the affected part smoothly and establishes the operation passageway to draw out nerve, strut the intervertebral space and carry out the operation, the utility model discloses it is multiple functional, simple and convenient and the practicality is high.

Description

Instrument assembly for OLIF operation

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to an apparatus subassembly for OLIF operation.

Background

The OLIF operation is different from the traditional lumbar vertebra operation in back operation, is an operation method for entering from the front of the abdomen side through the abdominal muscle gap, can complete the lumbar intervertebral fusion of two segments generally by 4-5 cm, has small incision and does not need to cut off the muscle, and all enter in the muscle gap, and has much less wound compared with the traditional posterior operation; although minimally invasive surgery is adopted, because the OLIF technology directly loosens and struts the lumbar intervertebral space, the spinal deformity orthopedic device has a strong orthopedic effect on the spinal deformity, and can greatly shorten the segments fixed by the surgery, namely the orthopedic effect which can be achieved only by fixing 5 segments in the prior posterior surgery can be achieved, and the orthopedic effect can be achieved only by fixing 2-3 segments by adopting the OLIF surgery.

The OLIF operation reverses the view that the traditional lumbar vertebra operation needs back incision, and is suitable for various lumbar vertebra degenerative diseases, such as lumbar spondylolisthesis, unstable lumbar vertebra, lumbar intervertebral disc source lumbago, lumbar vertebra degenerative lateral bending and the like, and most of the posterior ways of the traditional lumbar vertebra can adopt the OLIF operation.

At present, surgical instruments such as muscle retraction instruments and intervertebral space distraction instruments used in OLIF operations are directly taken from the instruments in European and American countries, but due to differences of regions, environments and the like, a plurality of instruments are possibly not suitable for physiological curvature of Asians and surgical habits of doctors, and therefore a reasonable, simple and practical instrument assembly more suitable for the Asians is needed to better perform OLIF operations.

The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information constitutes prior art already known to a person skilled in the art.

Disclosure of Invention

The utility model relates to a technical problem is realized through following scheme:

an instrument assembly for OLIF operation is characterized by comprising L-shaped guide draw hooks, S-shaped abdominal cavity draw hooks, a nerve dissector, a vertebral body distractor, a bone positioning needle and a double-ball-head wrench, wherein the L-shaped guide draw hooks are not less than two in configuration quantity.

Further, L shape direction drag hook contains straight integrative handle of plateform and arm-tie, the arm-tie hook of inboard buckling is directed to the front end of arm-tie, and it has the guide pin hole that runs through the central line to open on arm-tie length direction's the central line, is located open respectively on the position of guide pin hole both sides long banding with the parallel guide groove in guide pin hole, all open the compound hole that has round hole and slotted hole combination in the guide groove, the guide pin hole is non-confined one-level step cylinder slot hole, the guide pin hole is kept away from the one end of arm-tie hook is the guide pin entry, is close to the one end of arm-tie hook is the guide pin export.

Furthermore, the S-shaped abdominal cavity drag hook comprises a drag hook head and a drag hook handle.

Furthermore, the nerve dissector comprises a dissecting head, a connecting rod and a dissector handle, wherein the dissecting head is designed with a smooth bending part.

Furthermore, the vertebral body dilator comprises a dilator rod, scale marks are arranged on the dilator rod, the front end of the dilator rod is flat, and a square connecting end matched with other instruments to be quickly detached and replaced is arranged at the tail end of the dilator.

Furthermore, the bone positioning needle is a polished rod, the head end of the bone positioning needle is a pointed end, and the bone positioning needle can be arranged in the guide pin hole in a penetrating mode.

Further, double-bulb spanner with L shape direction drag hook can cooperate the use, this double-bulb spanner include spanner head end piece, spanner rod, periphery cover and be equipped with the spanner handle of silica gel material, spanner head end piece comprises rectangular block and two ball posts, two the ball post perpendicular to the rectangular block just is in bilateral symmetry sets up on the inboard one side of rectangular block, but the tip bulb department joint of this ball post is in the round hole department in compound hole, spanner rod front side is close to the design of outwards buckling in the position of spanner head end piece, the design of here outwards buckling does not shelter from doctor's operation field of vision in the operation.

The utility model integrates a set of intervertebral treatment instrument for OLIF operation which is simple, practical, convenient to operate and complete in function, the whole set of instrument occupies small operation space, the L-shaped guiding drag hook is mainly used for retracting muscle tissue on one side of the back, and more than two L-shaped guiding drag hooks can establish an operation channel to expose the affected part; the better tissue such as muscle that emphasizes on drawing abdominal cavity one side of its pliability of S-shaped abdominal cavity drag hook, two bulb spanner can use with the cooperation of L shape direction drag hook, in the operation when only using can draw the affected part to both sides with the cooperation application of force of two bulb spanner when the power of drawing of L shape direction drag hook is not enough.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of a set of instruments of an instrument assembly for OLIF surgery according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of the L-shaped guiding hook according to the embodiment of the present invention;

fig. 3 is another angle structure diagram of the L-shaped guiding retractor according to the embodiment of the present invention;

fig. 4 is a schematic structural view of the S-shaped abdominal retractor according to the embodiment of the present invention;

fig. 5 is a schematic top view of the S-shaped abdominal retractor according to the embodiment of the present invention;

FIG. 6 is a schematic view of a nerve dissector according to an embodiment of the present invention;

FIG. 7 is a schematic view of the structure of the vertebral body distractor and a partial view of the distraction rod according to the embodiment of the present invention;

FIG. 8 is a schematic structural view of a bone alignment pin according to an embodiment of the present invention;

fig. 9 is a schematic structural view of a double-ball-end wrench according to an embodiment of the present invention;

FIG. 10 is a schematic structural view of a wrench head end piece of a double ball end wrench according to an embodiment of the present invention;

icon:

the retractor comprises an L-shaped guide retractor 1, a handle 11, a retractor 12, a retractor hook 13, a guide pin hole 14, a guide groove 15, a composite hole 16, a guide pin inlet 17, a guide pin outlet 18, an S-shaped abdominal cavity retractor 2, a retractor head 21, a retractor handle 22, a nerve dissector 3, a dissecting head 31, a connecting rod 32, a dissecting device handle 33, a vertebral body distracter 4, a distracting rod 41, a joint end 42, a bone positioning needle 5, a double-ball-head wrench 6, a wrench head end piece 61, a wrench rod 62, a wrench handle 63, a rectangular block 64 and a ball column 65.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The present invention will be described in further detail below with reference to specific embodiments and with reference to the accompanying drawings.

Example (b): please refer to fig. 1-10:

the utility model provides an apparatus assembly for OLIF operation which characterized in that, includes L shape direction drag hook 1, S shape abdominal cavity drag hook 2, nerve stripper 3, centrum spreader 4, bone pilot pin 5, two bulb spanners 6, in the apparatus assembly L shape direction drag hook 1 configuration quantity be no less than two.

The L-shaped guiding drag hook 1 comprises a straight-plate-shaped integrated handle 11 and a pull plate 12, the front end of the pull plate 12 is provided with a pull plate hook 13 bent inwards, a guide pin hole 14 penetrating through a central line is formed in the central line of the length direction of the pull plate 12, the guide pin hole 14 is a non-closed first-level step cylindrical long hole, a non-closed part is a slit penetrating through the guide pin hole 14 in the length direction, the width of the slit is smaller than the diameter of the guide pin, the guide pin is ensured not to be separated from the preset moving range, in the specific implementation, the guide pin hole 14 in a non-closed state can clearly observe the sliding track of the bone positioning pin 5 in the guide pin hole, guide grooves 15 parallel to the guide pin hole 14 are respectively formed in the positions at two sides of the guide pin hole 14, composite holes 16 combining round holes and long slotted holes are formed in the guide grooves 15, the guide pin hole 14 is a non-closed first-level step cylindrical long hole, the end of the guide pin hole 14 far away from the draw plate hook 13 is a guide pin inlet 17, and the end close to the draw plate hook 13 is a guide pin outlet 18.

The S-shaped abdominal cavity retractor 2 comprises a retractor head 21 and a retractor handle 22.

The nerve dissector 3 comprises a dissecting head 31, a connecting rod 32 and a dissector handle 33, wherein a smooth bending part is designed at the end of the dissecting head 31.

The vertebral body distractor 4 comprises an distraction rod 41, scale marks are arranged on the distraction rod 41, the front end of the distraction rod is flat, and a square connecting end 42 matched with other instruments to be quickly disassembled and replaced is arranged at the tail end of the distractor.

The bone positioning needle 5 is a polished rod and the head end thereof is a pointed end, and the bone positioning needle 5 can be penetrated in the guide pin hole 14.

Double-bulb spanner 6 with L shape direction drag hook 1 can cooperate the use, this double-bulb spanner 6 include spanner head end piece 61, spanner rod 62, periphery cover are equipped with the spanner handle 63 of silica gel material, spanner head end piece 61 comprises rectangular block 64 and two ball columns 65, two ball column 65 is perpendicular to rectangular block 64, and the bilateral symmetry sets up on the inboard one side of rectangular block 64, but the tip bulb department joint of this ball column 65 is in the round hole department in compound hole, spanner rod 62 front side is close to the design of outwards buckling in spanner head end piece 61's position.

In a specific embodiment, the tip of the bone positioning needle 5 is inserted into the vertebra of the patient and fixed relatively, the bone positioning needle 5 passes through the guide pin hole 14 of the L-shaped guiding retractor 1, and the assembly is matched with at least two groups of tissues such as muscle of the patient to be retracted in the operation, so that the affected part is exposed and an operation channel is established; when the force for retracting the L-shaped guiding retractor 1 to the two sides is not enough and is not enough to completely expose the affected part, the doctor can use the double-ball spanner 6, the ball column 65 slides to the round hole of the composite hole from the position close to the guide pin entrance 17 along the guiding groove 15 along the direction of the pulling plate hook, the design of the small diameter of the long slotted hole of the composite hole limits that the ball column 65 clamped at the position can not slide freely to the direction close to the pulling plate hook 13, and at the moment, the doctor applies force to the double-ball spanner 6 correspondingly to the two sides so as to expand the opening area of the operation channel established by the L-shaped guiding retractor 1.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the claims above, any of the claimed embodiments may be used in any combination. The information in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information constitutes prior art already known to a person skilled in the art.

Claims (7)

1. An instrument assembly for OLIF operation is characterized by comprising L-shaped guide draw hooks, S-shaped abdominal cavity draw hooks, a nerve dissector, a vertebral body distractor, a bone positioning needle and a double-ball-head wrench, wherein the L-shaped guide draw hooks are not less than two in configuration quantity.

2. The instrument assembly as claimed in claim 1, wherein the L-shaped guiding retractor comprises a handle and a pulling plate integrally formed in a straight plate shape, the pulling plate hook is bent inward at a front end of the pulling plate, a guiding pin hole penetrating through a center line is formed on a center line of the pulling plate in a length direction, elongated guiding grooves parallel to the guiding pin hole are formed on two sides of the guiding pin hole, a composite hole combining a circular hole and a slotted hole is formed in each guiding groove, the guiding pin hole is a non-closed one-step cylindrical long hole, an end of the guiding pin hole far away from the pulling plate hook is a guiding pin inlet, and an end of the guiding pin hole near the pulling plate hook is a guiding pin outlet.

3. The instrument assembly of claim 1, wherein said S-shaped laparoscopic retractor comprises a retractor head and a retractor handle.

4. The instrument assembly of claim 1, wherein said nerve dissector comprises a dissecting head, a connecting rod, and a dissector handle, said dissecting head being designed with a rounded bend.

5. The instrument assembly of claim 1, wherein the vertebral body distractor comprises an distracting rod, the distracting rod is provided with graduation lines and has a flattened front end, and the distracting rod has a square coupling end at the tail end for cooperating with other instruments.

6. The instrument assembly of claim 2, wherein the bone positioning needle is a polished rod and the tip end is a pointed end, the bone positioning needle being insertable into the guide pin hole.

7. The instrument assembly of claim 2, wherein the wrench with a double ball head and the L-shaped guiding retractor can be used in cooperation, the wrench with a double ball head comprises a wrench head end piece, a wrench rod, and a wrench handle made of silica gel, the wrench head end piece comprises a rectangular block and two ball posts, the two ball posts are perpendicular to the rectangular block and are arranged symmetrically on one side of the inner side of the rectangular block, the ball heads at the end parts of the ball posts can be clamped in the round holes of the composite holes, and the front side of the wrench rod close to the wrench head end piece is bent outwards.

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