CN219271058U - Hook knife for intervertebral foramen mirror - Google Patents

Abstract

The utility model provides a bush-hook for an intervertebral foramen mirror, and belongs to the technical field of medical appliances. Solves the problems of complicated steps and low operation efficiency of the prior foramen mirror operation. The utility model comprises a probe rod, wherein the lower end of the probe rod is provided with a cutting part and a clamp rod, the cutting part is clamped with the clamp rod and forms a corner with the axis of the probe rod, the corner is an obtuse angle, the inner side of the cutting part is provided with a first cutting edge, the tail end of the clamp rod is hinged with the probe rod, the tip of the clamp rod is provided with a second cutting edge which is matched with the first cutting edge and is arranged at an included angle with the first cutting edge, the tail part of the clamp rod is provided with a steering device for controlling the clamp rod to clamp, the top of the steering device is higher than the probe rod, and the cutting part and the clamp rod are further provided with a matched secondary cutting device. The multifunctional hook knife realizes the multifunctional use, reduces the operation difficulty and improves the operation efficiency.

Description

Hook knife for intervertebral foramen mirror

Technical Field

The utility model belongs to the technical field of medical appliances, and relates to a bush-hook for an intervertebral foramen mirror.

Background

The lumbar percutaneous foramen mirror operation is a minimally invasive operation for treating lumbar disc herniation, which is developed in recent years, and is favored by doctors and patients because of small trauma and quick recovery. The operation needs to deal with various probing and excision situations of ligamentum flavum, disc and fibrous tissues. In the operation of the foramen mirror, a doctor usually needs to insert a probe into the foramen mirror, observe through an endoscope and align the probe with tissues such as a yellow ligament so as to cut the tissues, and nerve tissues are usually distributed near the yellow ligament, and the probe needs to avoid the nerve tissues during the cutting process.

At present, a commonly used method is that a probe is used for probing and separating tissues in an operation, when the tissues such as yellow ligaments and the like needing to be cut are encountered, the probe is firstly taken out, and then tools such as scissors, nucleus pulposus pincers and the like are additionally put into the tissues for cutting.

In view of the above, we propose a hook knife for an intervertebral foramen mirror to solve the problems of complicated steps and low efficiency of the intervertebral foramen mirror operation in the prior art.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model provides the bush-hook for the foramen mirror, which solves the problem of complicated steps of the foramen mirror operation and improves the operation efficiency.

The technical scheme adopted by the utility model is as follows:

the utility model provides a bush-hook for foraminicope, includes the probe rod, the lower extreme of probe rod is equipped with cutting part and binding clip, cutting part and binding clip are mutually clamped and form the turning with the axis of probe rod, the turning is the obtuse angle, cutting part is equipped with first cutting edge in the inboard at the turning, the tail end of binding clip with the probe rod is articulated, the pointed end of binding clip be equipped with the second cutting edge and with first cutting edge is the contained angle setting, the second cutting edge cooperatees with first cutting edge, the afterbody of binding clip is provided with the turning device who is used for controlling the binding clip to clamp, turning device's top exceeds the probe rod, still be provided with matched with secondary excision device on cutting part and the binding clip.

The working principle of the technical scheme is as follows:

when the intervertebral foraminiferous mirror operation is carried out, the hook knife is inserted into the intervertebral foraminiferous mirror, the endoscope is used for probing and separating tissues, the cutting part and the probe rod are arranged at an obtuse angle, and a doctor can conveniently operate to insert the first cutting edge and the second cutting edge below tissues such as ligamentum flavum to be cut and cut the tissues. In order to avoid the nearby nerve tissue, when the first blade and the second blade are not easy to cut or difficult to cut the tissue such as the ligamentum flavum, etc. by transversely forcefully cutting, the clamp rod is controlled by the steering device to clamp the cutting part so as to cut the tissue such as the ligamentum flavum, etc. secondarily. Compared with the traditional method of probing and separating tissues by using the probing hooks, when the tissues such as the yellow ligament and the like to be cut are encountered, the probing hooks are taken out firstly, and then tools such as scissors, nucleus pulposus pliers and the like are put in for cutting, so that the trouble of switching tools in the operation process is avoided, the restriction of the size and the dimension of the tools is avoided, the operation difficulty is reduced, and the operation efficiency is improved.

In a further technical scheme, the first cutting edge and the second cutting edge form a hook edge angle when in matched contact, and the hook edge angle is an obtuse angle.

The obtuse angle bush-hook is constituteed to first cutting edge and second cutting edge, is favorable to improving the success rate of cutting off the yellow ligament to can improve the efficiency of operation.

In a further technical scheme, the secondary excision device comprises a first clamp tooth and a second clamp tooth, wherein the first clamp tooth is arranged on the outer side of a corner of the cutting part, the second clamp tooth is arranged on the inner side of a corner of the clamp rod, and the first clamp tooth is matched with the second clamp tooth.

The clamp rod and the cutting part are clamped, and the functions of the nucleus pulposus clamp are equivalent to those of the nucleus pulposus clamp under the cooperation of the first clamp tooth and the second clamp tooth, so that tissues such as ligamentum flavum can be effectively resected or moved.

In a further technical scheme, the secondary cutting device comprises a third blade and a fourth blade, the third blade is arranged on the outer side of a corner of the cutting part, the fourth blade is arranged on the inner side of a corner of the clamp rod, and the third blade is matched with the fourth blade.

The clamp rod is clamped with the cutting part, and tissues such as the ligamentum flavum are directly sheared under the cooperation of the third blade and the fourth blade, so that the efficiency of cutting the tissues such as the ligamentum flavum by the foraminiferous surgery can be improved, and the surgical risk can be reduced.

In further technical scheme, turn to the device and include horizontal pole, pole setting, ring cover, the afterbody of pincers pole is provided with the spout that inclines towards the probe rod, the horizontal pole slides and sets up in the spout, the tip of horizontal pole is connected with the pole setting, the ring cover is established in the pole setting and with probe rod fixed connection.

The pole setting is upwards pulled, and the pole setting is vertical to rise under the restriction of ring cover, and the pole setting drives the horizontal pole and removes in the spout, and the pincers pole that articulates the setting with the probe rod just keeps away from with cutting part gradually at the in-process that the pole setting promoted, and conversely, pushes down the pole setting, and the pincers pole just is close to with cutting part gradually at the in-process that the pole setting descends.

In a further technical scheme, the shape of the loop is a bar, the two ends of the loop are respectively provided with a sliding hole and a fixed hole, the vertical rod is sleeved in the sliding hole, and the probe rod is tightly arranged in the fixed hole.

The oval ring sleeve is beneficial to saving materials and space, and the sliding holes and the fixing holes on the ring sleeve can effectively provide sliding for the vertical rod and fix the ring sleeve on the probe rod.

In a further technical scheme, the top end of the vertical rod is fixedly connected with a finger ring.

The finger ring is convenient for medical staff to use, and the upright rod is conveniently lifted or pressed down.

In a further technical scheme, the probe rod and the cutting part are integrally formed.

The integrated probe rod and the cutting part can improve the integral structural strength of the bush-hook for the foramen mirror.

In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows:

1. the utility model can directly insert the first blade and the second blade under the tissues such as the yellow ligament to be cut and cut when probing and separating the tissues, compared with the traditional tools such as the exploring hook, the scissors, the nucleus pulposus clamp and the like, the utility model simplifies the operation steps, is not limited by the size and the dimension of the tools, reduces the operation difficulty and improves the operation efficiency.

2. The utility model can avoid nearby nerve tissues, when tissues such as ligamentum flavum which are difficult to cut off or inconvenient to cut off by transverse force are not convenient, the clamp rod is clamped with the cutting part, and the tissues such as ligamentum flavum are clamped or sheared under the cooperation of the first clamp tooth and the second clamp tooth or the cooperation of the third blade and the fourth blade, so that the efficiency of cutting the tissues such as ligamentum flavum by using the foramen flavum can be improved, and the surgical risk is reduced.

3. The utility model has simple structure, convenient use, strong practicability and various functions, and can cope with various problems in the operation of the intervertebral foramen mirror.

Drawings

The utility model will now be described by way of example and with reference to the accompanying drawings in which:

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the structure of the clamp lever of the present utility model away from the cutting portion;

FIG. 3 is an enlarged schematic view of a portion of FIG. 1 at A;

FIG. 4 is a schematic view of the construction of the collar of the present utility model;

FIG. 5 is a schematic structural view of embodiment 2 of the present utility model;

FIG. 6 is a schematic view showing a structure of the clamp bar away from the cutting portion according to embodiment 2 of the present utility model;

FIG. 7 is an enlarged partial schematic view at B in FIG. 5;

reference numerals: the novel tool comprises a 1-probe rod, a 2-cutting part, a 3-clamp rod, a 4-first blade, a 5-second blade, a 6-first clamp tooth, a 7-second clamp tooth, an 8-third blade, a 9-fourth blade, a 10-cross rod, a 11-vertical rod, a 12-ring sleeve, a 13-chute, a 14-sliding hole, a 15-fixed hole and a 16-finger ring.

Detailed Description

For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, which are generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, as provided in the accompanying drawings, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, are intended to be within the scope of the present application.

In the description of the embodiments of the present application, it should be noted that, directions or positional relationships indicated by terms such as "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or those that are conventionally put in use of the inventive product, are merely for convenience of description and simplicity of description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

The present utility model will be described in detail with reference to fig. 1 to 3.

Example 1:

this embodiment provides a bush-hook for foraminioscope, refer to fig. 1 and 2, including probe rod 1, probe rod 1 is rectangular shape, the lower extreme of probe rod 1 is equipped with cutting part 2 and pincers pole 3, cutting part 2 and pincers pole 3 looks pincer and form the turning with the axis of probe rod 1, the turning is the obtuse angle, cutting part 2 is equipped with first cutting edge 4 in the inboard at the turning, the tail end and the probe rod 1 of pincers pole 3 are articulated, the pointed end of pincers pole 3 is equipped with second cutting edge 5 and is the contained angle setting with first cutting edge 4 between, second cutting edge 5 cooperatees with first cutting edge 4, the afterbody of pincers pole 3 is connected with and is used for controlling pincers pole 3 to clamp and turns to the device, turn to the top of device and exceeds probe rod 1, still be equipped with matched with secondary excision device on cutting part 2 and the pincers pole 3.

Specifically, the cutting part 2 and the probe rod 1 are arranged at an obtuse angle of 130 degrees, so that a doctor can conveniently operate to insert the first blade 4 and the second blade 5 under tissues such as ligamentum flavum to be cut and cut the tissues. In order to avoid the nearby nerve tissue, when the first blade 4 and the second blade 5 are not easy to cut or are inconvenient to cut the tissue such as the ligamentum flavum laterally, the clamp rod 3 is clamped with the cutting part 2 by using the steering device to cut the tissue such as the ligamentum flavum secondarily. Compared with the traditional method of probing and separating tissues by using the probing hooks, when the tissues such as the yellow ligament and the like to be cut are encountered, the probing hooks are taken out firstly, and then tools such as scissors, nucleus pulposus pliers and the like are put in for cutting, so that the trouble of switching tools in the operation process is avoided, the restriction of the size and the dimension of the tools is avoided, the operation difficulty is reduced, and the operation efficiency is improved.

In this embodiment, referring to fig. 3, the first blade 4 and the second blade 5 form a hook edge angle when they are in mating contact, and the hook edge angle is an obtuse angle.

Specifically, the first blade 4 and the second blade 5 form an obtuse angle hook knife, and the obtuse angle is 120 degrees, so that the success rate of cutting off the ligamentum flavum is improved, and the operation efficiency can be improved.

In this embodiment, referring to fig. 3, the secondary cutting device includes a third blade 8 and a fourth blade 9, the third blade 8 is disposed outside the corner of the cutting portion 2, the fourth blade 9 is disposed inside the corner of the clamp bar 3, and the third blade 8 and the fourth blade 9 are engaged.

Specifically, the clamp rod 3 is clamped with the cutting part 2, and tissues such as the ligamentum flavum are directly sheared under the cooperation of the third cutting edge 8 and the fourth cutting edge 9, so that the efficiency of cutting the tissues such as the ligamentum flavum by the foraminiferous surgery can be improved, and the surgical risk can be reduced.

In this embodiment, the steering device includes a cross bar 10, a vertical rod 11, and a ring 12, the tail of the clamp rod 3 is provided with a chute 13 inclined toward the probe rod 1, the cross bar 10 is slidably mounted in the chute 13, the end of the cross bar 10 is fixedly connected with the vertical rod 11, and the ring 12 is sleeved on the vertical rod 11 and is fixedly connected with the probe rod 1.

Specifically, the vertical rod 11 is pulled upwards, the vertical rod 11 vertically ascends under the limit of the loop 12, the vertical rod 11 drives the cross rod 10 to move in the chute 13, the clamp rod 3 hinged with the probe rod 1 is gradually far away from the cutting part 2 in the lifting process of the vertical rod 11, and conversely, the vertical rod 11 is pressed downwards, and the clamp rod 3 is gradually close to the cutting part 2 in the descending process of the vertical rod 11.

In this embodiment, referring to fig. 4, the loop 12 is in a strip shape, two ends of the loop 12 are respectively provided with a sliding hole 14 and a fixing hole 15, the upright rod 11 is sleeved in the sliding hole 14, and the probe rod 1 is tightly installed in the fixing hole 15.

In particular, the oval collar 12 is advantageous in terms of material and space saving, and the sliding holes 14 and the fixing holes 15 provided thereon are effective in providing sliding movement for the upright 11 and in fixing the collar 12 to the probe 1.

In this embodiment, the top end of the upright 11 is fixedly connected with a finger ring 16.

In particular, the finger ring 16 is convenient for the medical staff to use, and to lift or push down the upright 11.

In this embodiment, the probe rod 1 and the cutting portion 2 are integrally formed.

Specifically, the integrally formed probe rod 1 and the cutting part 2 can improve the overall structural strength of the bush-hook for the foramen mirror.

In summary, compared with the prior art, the utility model has the following beneficial effects:

1. the utility model can directly insert the first blade 4 and the second blade 5 under the tissues such as the yellow ligament to be cut and cut when probing and separating the tissues, compared with the traditional tools such as a exploring hook, scissors, nucleus pulposus forceps and the like, the utility model simplifies the operation steps, is not limited by the size and the dimension of the tools, reduces the operation difficulty and improves the operation efficiency.

2. The utility model can avoid nearby nerve tissues, when tissues such as ligamentum flavum which are difficult to cut off or inconvenient to cut off by transverse force are not convenient, the clamp rod 3 is clamped with the cutting part 2, the tissues such as ligamentum flavum are clamped or sheared under the cooperation of the third cutting edge 8 and the fourth cutting edge 9, the efficiency of cutting the tissues such as ligamentum flavum by the foramen mirror operation can be improved, and the utility model is beneficial to reducing operation risks.

3. The utility model has simple structure, convenient use, strong practicability and various functions, and can cope with various problems in the operation of the intervertebral foramen mirror.

Working principle:

when the operation of the intervertebral foramen mirror is carried out, the hook knife is inserted into the intervertebral foramen mirror, the endoscope is used for probing and separating tissues, and when the cutting is needed, the first blade 4 and the second blade 5 are inserted under the tissues such as yellow ligament to be cut, and the tissues are cut. In order to avoid nearby nerve tissues, when the first blade 4 and the second blade 5 are not easy to cut or are inconvenient to cut tissues such as ligamentum flavum, etc. by transversely forcing, the finger ring 16 is used for lifting the upright rod 11 upwards, so that the clamp rod 3 and the cutting part 2 are far away from each other, the tissues such as ligamentum flavum to be cut extend between the clamp rod 3 and the cutting part 2, the upright rod 11 is pressed down, the tissues such as ligamentum flavum to be cut are sheared, the efficiency of cutting the tissues such as ligamentum flavum by using the foraminium mirror operation is improved, and the surgical risk is reduced.

Example 2:

unlike embodiment 1, referring to fig. 5 to 7, the secondary cutting device includes a first jaw 6 and a second jaw 7, the first jaw 6 being provided outside the corner of the cutting portion 2, the second jaw 7 being provided inside the corner of the jaw 3, the first jaw 6 and the second jaw 7 being engaged.

Specifically, the clamping rod 3 and the cutting part 2 are used for clamping, and the first clamping tooth 6 and the second clamping tooth 7 are matched, so that the function of nucleus pulposus clamp is realized, and tissues such as ligamentum flavum can be effectively resected or moved.

The foregoing examples merely represent specific embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the present application. It should be noted that, for those skilled in the art, several variations and modifications can be made without departing from the technical solution of the present application, which fall within the protection scope of the present application.

Claims (8)

1. The utility model provides a bush-hook for foraminioscope, includes probe rod (1), its characterized in that, the lower extreme of probe rod (1) is equipped with cutting part (2) and binding clip (3), cutting part (2) and binding clip (3) are mutually clamped and form the turning with the axis of probe rod (1), the turning is the obtuse angle, cutting part (2) are equipped with first cutting edge (4) in the inboard at turning, the tail end of binding clip (3) with probe rod (1) are articulated, the pointed end of binding clip (3) be equipped with second cutting edge (5) and with be the contained angle setting between first cutting edge (4), second cutting edge (5) cooperate with first cutting edge (4), the afterbody of binding clip (3) is provided with the turning device who is used for controlling binding clip (3) to clamp, the top of turning device exceeds probe rod (1), still be provided with matched with secondary excision device on cutting part (2) and the binding clip (3).

2. A bush-hook for an intervertebral foramen mirror according to claim 1, wherein the first blade (4) and the second blade (5) form a hook angle when in mating contact, the hook angle being an obtuse angle.

3. A bush-hook for an intervertebral foramen mirror according to claim 1, wherein the secondary cutting device comprises a first forceps tooth (6) and a second forceps tooth (7), the first forceps tooth (6) is arranged outside the corner of the cutting part (2), the second forceps tooth (7) is arranged inside the corner of the forceps rod (3), and the first forceps tooth (6) and the second forceps tooth (7) are matched.

4. A bush-hook for an intervertebral foramen mirror according to claim 1, wherein the secondary cutting means comprises a third blade (8) and a fourth blade (9), the third blade (8) being arranged outside the corner of the cutting portion (2), the fourth blade (9) being arranged inside the corner of the clamp bar (3), the third blade (8) and the fourth blade (9) being co-operating.

5. The bush-hook for the foramen mirror according to claim 1, wherein the steering device comprises a cross rod (10), a vertical rod (11) and a loop (12), a chute (13) inclined towards the probe rod (1) is arranged at the tail of the clamp rod (3), the cross rod (10) is slidably arranged in the chute (13), the end part of the cross rod (10) is connected with the vertical rod (11), and the loop (12) is sleeved on the vertical rod (11) and is fixedly connected with the probe rod (1).

6. The bush-hook for the foramen mirror according to claim 5, wherein the shape of the ring sleeve (12) is a bar shape, two ends of the ring sleeve (12) are respectively provided with a sliding hole (14) and a fixing hole (15), the upright rod (11) is sleeved in the sliding hole (14), and the probe rod (1) is tightly arranged in the fixing hole (15).

7. The hook knife for the foramen mirror according to claim 5, wherein the top end of the upright (11) is fixedly connected with a finger ring (16).

8. A bush-hook for an intervertebral foramen mirror according to any one of claims 1 to 7, wherein the probe (1) and the cutting part (2) are integrally formed.

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