Omnidirectional nucleus pulposus forceps for intervertebral foramen endoscope

Abstract

The omni-directional nucleus pulposus forceps comprise a bracket, a fixed handle is arranged at the bottom of the rear end of the bracket, a movable handle distributed corresponding to the fixed handle is arranged at the bottom of the bracket, a fixed pipe is arranged at the top end of the bracket, an inner cavity of the front end of the fixed pipe is rotationally connected with a forceps pipe, and the forceps pipe is connected with a forceps handle. An alloy memory hose is arranged at the end, away from the fixing pipe, of the pincer pipe, and two grab buckets capable of being opened and closed are arranged at the end, away from the pincer pipe, of the alloy memory hose. By shifting the shifting block back and forth and rotating the shifting block by taking the rotating shaft as the circle center, the connecting wire is pulled and pushed, so that the connecting wire pulls or pushes the end part of the alloy memory hose, the alloy memory hose realizes the actions of bending, pushing and pulling back and forth, an orthopedist can perform an operation conveniently, the operation difficulty is reduced, and the operation efficiency is improved. And the patient can clean more thoroughly.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical instruments, and in particular relates to an omnidirectional nucleus pulposus forceps used for a transforaminal endoscopic view. Background Art

[0002] Transforaminal endoscopic discectomy (TELEVISION) is a minimally invasive procedure designed to relieve low back pain and / or radiating leg pain caused by a herniated disc. This procedure utilizes a transforaminal endoscope (a tiny camera and light source) to directly visualize the intervertebral foramen (the opening between the vertebrae), allowing for precise treatment. Specialized instruments (nucleus pulposus forceps / straight forceps) are used under the microscope to remove or reduce the herniated disc material, relieving pressure on the nerve roots.

[0003] However, due to the small grasping part of the nucleus pulposus forceps, it can only grasp a small part of the diseased tissue each time, and the forceps tube cannot rotate axially and laterally, and the control range is limited. Many corners that can be seen under the percutaneous foraminal endoscope cannot be grasped, resulting in incomplete surgical removal. Utility Model Content

[0004] The purpose of the utility model is to provide an omnidirectional nucleus pulposus forceps for intervertebral foraminal endoscopy to solve the technical problems raised in the background technology.

[0005] To achieve the above-mentioned purpose, the specific technical solution of the present invention is as follows: an omnidirectional nucleus pulposus forceps for percutaneous endoscopic discectomy, comprising a bracket, a fixed handle is provided at the bottom of the rear end of the bracket, a movable handle is provided at the bottom of the bracket and is distributed corresponding to the fixed handle, a fixed tube is provided at the top of the bracket, a clamp tube is rotatably connected to the front end inner cavity of the fixed tube, an alloy memory hose is provided at the end of the clamp tube away from the fixed tube, and two openable and closable grab buckets are provided at the end of the alloy memory hose away from the clamp tube, and a toggle mechanism for driving the alloy memory hose to bend forward and backward is provided on the fixed tube.

[0006] Preferably, a knob is sleeved on the clamp tube near the fixed tube, and a plurality of abutting blocks distributed in a circumferential array and in contact with the surface of the knob are provided on the side wall of the fixed tube.

[0007] Preferably, the knob is a circular structure, the knob is fixedly connected to the clamp tube, and the side wall of the knob is provided with anti-slip grooves.

[0008] Preferably, the abutting block is made of rubber material.

[0009] Preferably, the toggle mechanism includes a toggle block and a connecting wire, one end of the toggle block is located above the fixed tube, the bottom of the toggle block is located in the inner cavity of the fixed tube, and the toggle block is rotatably connected to a connecting seat through a rotating shaft, the bottom of the connecting seat is fixedly connected to the upper surface of the fixed tube, a cavity is provided inside the alloy memory hose, one end of the connecting wire is fixedly connected to the bottom side wall of the toggle block, and the other end of the connecting wire passes through the inner cavity of the fixed tube and the clamp tube, and is fixedly connected to the inner wall of the end of the cavity.

[0010] Preferably, the grab is provided with a plurality of sharp teeth evenly distributed on the right side.

[0011] The utility model of an omnidirectional nucleus pulposus forceps for intervertebral foraminal endoscopy has the following advantages:

[0012] 1. The utility model moves the toggle block back and forth, and the toggle block rotates with the rotating shaft as the center of the circle, thereby pulling and pushing the connecting wire, so that the connecting wire pulls or pushes the end of the alloy memory hose, so that the alloy memory hose can achieve the action of bending and pushing back and forth, which is convenient for orthopedic surgeons to perform surgery, reduces the difficulty of operation, and is conducive to more thorough removal of patients.

[0013] 2. The grab bucket allows for grabbing larger diseased tissues each time, allowing for more thorough removal of protruding annulus fibrosus or nucleus pulposus. Combined with the 360° rotatable clamp, all-round rotation control can be achieved, making surgical operations easier. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a connection diagram of the toggle block and the alloy memory hose in the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the grab bucket in the utility model;

[0018] Explanation of the marks in the figure: 1. Bracket; 2. Fixed handle; 3. Movable handle; 4. Fixed tube; 5. Clamp tube; 6. Knob; 7. Tightening block; 8. Alloy memory hose; 9. Grab bucket; 10. Toggle block; 11. Connecting seat; 12. Connecting wire; 13. Cavity; 14. Sharp teeth. DETAILED DESCRIPTION

[0019] Hereinafter, only certain exemplary embodiments are briefly described. As will be appreciated by those skilled in the art, the described embodiments may be modified in various ways without departing from the spirit or scope of the embodiments of the present invention. Therefore, the drawings and description are to be regarded as illustrative in nature and not restrictive.

[0020] In the description of the embodiments of the present invention, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc. indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0022] In the embodiments of the present invention, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present invention based on specific circumstances.

[0023] The disclosure below provides many different embodiments or examples for implementing different structures of the embodiments of the present invention. In order to simplify the disclosure of the embodiments of the present invention, the components and settings of specific examples are described below. Of course, these are merely examples and are not intended to limit the embodiments of the present invention. In addition, the embodiments of the present invention may repeat reference numbers and / or reference letters in different examples. Such repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed.

[0024] In order to better understand the purpose, structure and function of the present invention, the following is a further detailed description of the omnidirectional nucleus pulposus forceps for transforaminal endoscopic discectomy of the present invention in conjunction with the accompanying drawings.

[0025] like Figure 1-3 As shown, the utility model discloses an omnidirectional nucleus pulposus forceps for transforaminal endoscopic discectomy, comprising a bracket 1, a fixed handle 2 disposed at the rear bottom of the bracket 1, a movable handle 3 disposed at the bottom of the bracket 1 corresponding to the fixed handle 2, a fixed tube 4 disposed at the top of the bracket 1, a clamp tube 5 rotatably connected to the front end of the fixed tube 4, a knob 6 sleeved on the clamp tube 5 near the fixed tube 4, and a plurality of abutments 7 disposed on the sidewall of the fixed tube 4 in a circumferential array and contacting the surface of the knob 6. The friction between the abutments 7 and the knob 6 is increased by the cooperation between the abutments 7 and the knob 6, so that the knob 6 rotates with the clamp tube 5 only when the operator manually rotates the knob 6. When the operator releases the knob 6, the friction prevents the knob 6 from rotating on its own, thereby improving the stability of the structure. The knob 6 is a circular structure, fixedly connected to the clamp tube 5, and the sidewall of the knob 6 is provided with anti-slip grooves to facilitate the rotation of the knob 6. The pressing block 7 is made of rubber material, which increases the friction between the pressing block 7 and the knob 6 .

[0026] An alloy memory hose 8 is provided at one end of the clamp tube 5 away from the fixed tube 4, and two closable grab buckets 9 are provided at one end of the alloy memory hose 8 away from the clamp tube 5, and a toggle mechanism for driving the alloy memory hose 8 to bend forward and backward is provided on the fixed tube 4, and the toggle mechanism includes a toggle block 10 and a connecting wire 12, one end of the toggle block 10 is located above the fixed tube 4, the bottom of the toggle block 10 is located in the inner cavity of the fixed tube 4, and the toggle block 10 is rotatably connected to the connecting seat 11 through a rotating shaft, and the bottom of the connecting seat 11 is fixedly connected to the upper surface of the fixed tube 4, and the alloy memory hose 8 A cavity 13 is provided inside, one end of the connecting wire 12 is fixedly connected to the bottom side wall of the toggle block 10, and the other end of the connecting wire 12 passes through the inner cavity of the fixed tube 4 and the clamp tube 5 and is fixedly connected to the inner wall of the end of the cavity 13. By toggling the toggle block 10 back and forth, the toggle block 10 rotates with the rotating shaft as the center of the circle, thereby pulling or pushing the connecting wire 12, so that the connecting wire 12 pulls or pushes the end of the alloy memory hose 8, so that the alloy memory hose 8 can realize the action of bending and pushing back and forth, which is convenient for orthopedic surgeons to perform surgery, reduces the difficulty of operation, and is conducive to more thorough removal of patients. The grab bucket 9 is provided with a plurality of sharp teeth 14 evenly distributed on the right side. The structure for controlling the opening and closing of the grab bucket 9 is the structure for controlling the opening and closing of the chuck of the existing nucleus pulposus forceps. It will not be elaborated here. The chuck is simply changed to the grab bucket 9. Through the setting of the grab bucket 9, larger diseased tissue can be grabbed each time, so that the protruding annulus fibrosus or nucleus pulposus can be removed more thoroughly. In combination with the 360° rotatable clamp tube 5, all-round rotation control can be achieved, making the surgical operation easier. Through the setting of the sharp teeth 14, the diseased tissue can be quickly removed.

[0027] It is understood that the present invention is described by way of certain embodiments, and those skilled in the art will appreciate that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. Furthermore, under the guidance of the present invention, these features and embodiments may be modified to suit specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are intended to be protected by the present invention.

Claims

1. An omnidirectional nucleus pulposus forceps for intervertebral foraminal endoscopy, comprising a bracket (1), a fixed handle (2) provided at the bottom of the rear end of the bracket (1), and a movable handle (3) provided at the bottom of the bracket (1) and corresponding to the fixed handle (2), characterized in that: A fixed tube (4) is provided at the top end of the bracket (1), a clamp tube (5) is rotatably connected to the inner cavity of the front end of the fixed tube (4), an alloy memory hose (8) is provided at one end of the clamp tube (5) away from the fixed tube (4), and two closable grab buckets (9) are provided at one end of the alloy memory hose (8) away from the clamp tube (5), and a toggle mechanism for driving the alloy memory hose (8) to bend forward and backward is provided on the fixed tube (4).

2. The omnidirectional nucleus pulposus forceps for transforaminal endoscopic discectomy according to claim 1, characterized in that: A knob (6) is sleeved on the clamp tube (5) near the fixed tube (4), and a plurality of abutting blocks (7) distributed in a circumferential array and in contact with the surface of the knob (6) are provided on the side wall of the fixed tube (4).

3. The omnidirectional nucleus pulposus forceps for transforaminal endoscopic discectomy according to claim 2, characterized in that: The knob (6) is a circular structure, the knob (6) is fixedly connected to the clamp tube (5), and the side wall of the knob (6) is provided with anti-slip grooves.

4. The omnidirectional nucleus pulposus forceps for transforaminal endoscopic discectomy according to claim 2, characterized in that: The pressing block (7) is made of rubber material.

5. The omnidirectional nucleus pulposus forceps for transforaminal endoscopic discectomy according to claim 1, characterized in that: The toggle mechanism includes a toggle block (10) and a connecting wire (12), one end of the toggle block (10) is located above the fixed tube (4), the bottom of the toggle block (10) is located in the inner cavity of the fixed tube (4), and the toggle block (10) is rotatably connected to a connecting seat (11) via a rotating shaft, the bottom of the connecting seat (11) is fixedly connected to the upper surface of the fixed tube (4), a cavity (13) is provided inside the alloy memory hose (8), one end of the connecting wire (12) is fixedly connected to the bottom side wall of the toggle block (10), and the other end of the connecting wire (12) passes through the inner cavity of the fixed tube (4) and the clamp tube (5), and is fixedly connected to the inner wall of the end of the cavity (13).

6. The omnidirectional nucleus pulposus forceps for transforaminal endoscopic discectomy according to claim 1, characterized in that: The grab bucket (9) is provided with a plurality of sharp teeth (14) evenly distributed on the right side.

Images