CN213156233U - Adjustable nucleus pulposus pincers - Google Patents

Abstract

The utility model discloses a nucleus pulposus pincers with adjustable, including handle, binding clip, go up binding clip and binding clip down, the binding clip with the position that the handle is connected is provided with angle adjustment mechanism, go up the binding clip with the binding clip is rotationally installed down the tip of binding clip, be provided with first connecting wire and second connecting wire in the binding clip, the one end of first connecting wire with go up binding clip rotatable coupling, the other end passes behind the angle adjustment mechanism with the handle is connected, angle adjustment mechanism is including adjusting the runner, the central point of adjusting the runner puts and is formed with the screw hole, the one end of second connecting wire with binding clip rotatable coupling down, the other end with adjust on the runner screw hole spiro union. The utility model discloses a lower binding clip angularly adjustable effectively improves the working angle scope of nucleus pulposus pincers, and its simple structure is suitable for the popularization moreover.

Description

Adjustable nucleus pulposus pincers

Technical Field

The utility model relates to a nucleus pulposus pincers, concretely relates to nucleus pulposus pincers with adjustable belongs to the medical instrument field.

Background

The nucleus pulposus clamp is an instrument used in minimally invasive surgery and is mainly used for clamping nucleus pulposus. The angle of the existing nucleus pulposus clamp can not be adjusted, the lower clamp head is fixed with the clamp rod, when an operation is carried out, the operable space of a minimally invasive operation is very limited, so that the nucleus pulposus clamp with various angles needs to be used in the operation, the nucleus pulposus clamp needs to be frequently replaced in the operation, the operation risk is increased, the physical consumption of doctors is very large, in addition, various nucleus pulposus clamps need to be purchased in a hospital, the purchase cost is high, and the nucleus pulposus clamp with an adjustable angle and a simple structure needs to be researched and developed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a nucleus pulposus pincers with adjustable to solve the technical problem among the prior art, its lower binding clip angularly adjustable effectively improves the working angle scope of nucleus pulposus pincers, and simple structure is suitable for the popularization moreover.

The utility model provides a nucleus pulposus pincers with adjustable, including handle, binding clip, go up binding clip and binding clip down, the binding clip with the position that the handle is connected is provided with angle adjustment mechanism, go up the binding clip with the binding clip is rotationally installed down the tip of binding clip, be provided with first connecting wire and second connecting wire in the binding clip, the one end of first connecting wire with go up binding clip rotatable coupling, the other end passes behind the angle adjustment mechanism with the handle is connected, angle adjustment mechanism is including adjusting the runner, the central point of adjusting the runner puts and is formed with the screw hole, the one end of second connecting wire with binding clip rotatable coupling down, the other end with adjust on the runner screw hole spiro union.

In the adjustable nucleus pulposus pincers, preferably, the handle comprises a fixed handle and a movable handle which are rotatably connected through a rotating shaft, and the fixed handle is fixedly connected with the angle adjusting mechanism.

In the adjustable nucleus pulposus pincers, preferably, the angle adjusting mechanism further comprises a shell, the adjusting rotating wheel is rotatably installed in the shell, the adjusting rotating wheel comprises a main wheel body, a shifting wheel and a center wheel which are coaxially arranged, wherein the shifting wheel is arranged on the outer wall of the main wheel body, an axial through hole is formed in the main wheel body, the center wheel is arranged in the through hole, the center wheel is fixedly connected with the main wheel body through a fan-shaped connecting rib, so that a three-quarter circular cavity is formed between the outer wall of the center wheel and the inner wall of the main wheel body (15), the first connecting wire penetrates through the cavity and is connected with the movable handle, the threaded hole is formed in the center wheel, and the second connecting wire is in threaded connection with the threaded hole.

In the adjustable nucleus pulposus pincers, preferably, a first limiting groove and a second limiting groove are formed in the shell, the main wheel body is accommodated in the first limiting groove, the thumb wheel is accommodated in the second limiting groove, and an opening is formed in the bottom of the second limiting groove, so that part of the thumb wheel extends out of the shell.

In the adjustable nucleus pulposus clamp, preferably, two symmetrically arranged mounting plates are arranged at the end part of the clamp rod, and the upper clamp head and the lower clamp head are rotatably connected with the mounting plates through rotating shafts.

In the adjustable nucleus pulposus clamp, a partition board is preferably arranged in the clamp rod, the partition board divides the internal space of the clamp rod into an upper channel and a lower channel which have the same size, the first connecting wire is arranged in the upper channel, and the second connecting wire is arranged in the lower channel.

In the adjustable nucleus pulposus clamp, preferably, one end of the clamp rod, which is close to the angle adjusting mechanism, is further provided with a flushing joint with a downward opening, and an inner hole of the flushing joint is communicated with the upper channel and the lower channel.

In the adjustable nucleus pulposus clamp, preferably, the outer wall of the clamp rod is provided with scale values.

Compared with the prior art, the utility model discloses an go up binding clip and binding clip all with tong bar rotatable coupling down, lower binding clip passes through second connecting wire and angle adjustment mechanism threaded connection, makes the angle of binding clip down can adjust according to the demand. The utility model discloses can adjust the angle between binding clip and the tong pole according to the demand, effectively improve the working range of nucleus pulposus pincers, use the utility model discloses can replace many among the prior art nucleus pulposus pincers, need not to change the pliers in the art, not only improve operation speed, reduce the operation risk, still reduce the purchasing cost of hospital.

Drawings

Fig. 1 is an isometric view of the present invention;

FIG. 2 is an exploded view of the angle adjustment mechanism;

figure 3 is a semi-sectional view of the upper and lower binding clip and the ends of the jawset.

Description of reference numerals: 1-handle, 2-first connecting wire, 3-clamp rod, 4-upper clamp head, 5-lower clamp head, 6-angle adjusting mechanism, 7-second connecting wire, 8-adjusting rotating wheel, 9-threaded hole, 10-fixed handle, 11-movable handle, 12-shell, 13-first limiting groove, 14-second limiting groove, 15-main wheel body, 16-shifting wheel, 17-center wheel, 18-fan-shaped connecting rib, 19-cavity, 20-mounting plate, 21-partition plate and 22-flushing joint.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present invention, and should not be construed as limiting the present invention.

The embodiment of the utility model provides a: as shown in fig. 1-3, an adjustable nucleus pulposus clamp comprises a handle 1, a clamp rod 3, an upper clamp head 4 and a lower clamp head 5, it is characterized in that an angle adjusting mechanism 6 is arranged at the connecting position of the clamp rod 3 and the handle 1, the upper clamp head 4 and the lower clamp head 5 are rotatably arranged at the end part of the clamp rod 3, a first connecting wire 2 and a second connecting wire 7 are arranged in the clamp rod 3, the first connecting wire 2 and the second connecting wire 7 are both hard steel wires and have higher hardness, the bending cannot be generated when thrust or tension is applied, one end of the first connecting wire 2 is rotatably connected with the upper tong head 4, the other end of the first connecting wire passes through the angle adjusting mechanism 6 and then is connected with the handle 1, the angle adjusting mechanism 6 comprises an adjusting rotating wheel 8, a threaded hole 9 is formed in the center position of the adjusting rotating wheel 8, one end of the second connecting wire 7 is rotatably connected with the lower tong head 5, and the other end of the second connecting wire is in threaded connection with the threaded hole 9 in the adjusting rotating wheel 8.

When the angle of the lower binding clip 5 needs to be adjusted, only the adjusting rotating wheel 8 needs to be rotated, and the adjusting wheel 8 is in threaded connection with one end of the second connecting wire 7 through the threaded hole 9 on the adjusting wheel 8, so that when the adjusting wheel 8 is rotated, the adjusting wheel 8 only rotates in the axial direction, does not move in the axial direction, and can drive the second connecting wire 7 in threaded connection with the adjusting wheel to move forwards or backwards, so that the lower binding clip 5 is driven to rotate, and the adjustment of the included angle between the lower binding clip 5 and the binding clip 3 is realized. The upper tong head 4 can be controlled by operating the handle 1, so that the upper tong head and the lower tong head 5 are matched to clamp nucleus pulposus.

Because the utility model discloses can adjust the angle of binding clip 5 down, need not to change nucleus pulposus pincers repeatedly in the art, only need adjust down the angle of binding clip 5 can. Reduces the physical consumption of the doctor and improves the success rate of the operation.

In a specific embodiment, the handle 1 comprises a fixed handle 10 and a movable handle 11, which are rotatably connected by a rotating shaft, the fixed handle 10 being fixedly connected with the angle adjustment mechanism 6.

The angle adjusting mechanism 6 further comprises a shell 12, the shell 12 is of a bilateral symmetry structure, the angle adjusting mechanism can be fixedly connected through a bolt, or the angle adjusting mechanism can be fixedly connected through a buckle, the adjusting rotating wheel 8 can be rotatably installed in the shell 12, the adjusting rotating wheel 8 comprises a main wheel body 15, a shifting wheel 16 and a center wheel 17, the shifting wheel 16 is arranged on the outer wall of the main wheel body 15, an axial through hole is formed in the main wheel body 15, the center wheel 17 is arranged in the through hole, the center wheel 17 is fixedly connected with the main wheel body 15 through a fan-shaped connecting rib 18, a three-quarter circular ring-shaped cavity 19 is formed between the outer wall of the center wheel 17 and the inner wall of the main wheel body 15, the first connecting wire 2 penetrates through the cavity 19 and is connected with the movable handle 11, the threaded hole 9 is formed in the center wheel 17.

It should be noted that the height of the cavity 19 should be slightly larger than the diameter of the first connecting wire 2, so that the first connecting wire 2 is not flipped over. With this structural design, the diameter of the main wheel body 15 can be made sufficiently large in a limited space, because the larger the diameter of the main wheel body 15, the more convenient it is to manipulate it. And the adjustable angle of the lower binding clip 5 does not need to be too large, and the displacement distance caused by three-quarter rotation of the main wheel body 15 completely meets the use requirement. The dial wheel 16 is located at the bottom outside the housing 12 and can be dialed by the doctor with his fingers, and is preferably knurled on its outer wall for ease of handling.

Further, the housing 12 has a first limiting groove 13 and a second limiting groove 14, the main wheel body 15 is accommodated in the first limiting groove 13, the thumb wheel 16 is accommodated in the second limiting groove 14, and the bottom of the second limiting groove 14 has an opening, so that a part of the thumb wheel 16 extends out of the housing 12. The first limiting groove 13 and the second limiting groove 14 can axially limit the main wheel body 15 and the dial wheel 16, and prevent the main wheel body and the dial wheel from generating axial displacement.

Furthermore, the end of the clamp rod 3 is provided with two symmetrically arranged mounting plates 20, and the upper clamp head 4 and the lower clamp head 5 are rotatably connected with the mounting plates 20 through rotating shafts. A partition plate 21 is arranged in the clamping rod 3, the partition plate 21 divides the inner space of the clamping rod 3 into an upper channel and a lower channel which are equal in size, the first connecting wire 2 is arranged in the upper channel, and the second connecting wire 7 is arranged in the lower channel. And one end of the clamp rod 3, which is close to the angle adjusting mechanism 2, is also provided with a flushing joint 22 with a downward opening, and an inner hole of the flushing joint 22 is communicated with the upper channel and the lower channel. The outer wall of the clamp rod 3 is provided with a scale value.

The structure, features and effects of the present invention have been described in detail above according to the embodiment shown in the drawings, and the above description is only the preferred embodiment of the present invention, but the present invention is not limited to the implementation scope shown in the drawings, and all changes made according to the idea of the present invention or equivalent embodiments modified to the same changes should be considered within the protection scope of the present invention when not exceeding the spirit covered by the description and drawings.

Claims (8)

1. An adjustable nucleus pulposus clamp comprises a handle (1), a clamp rod (3), an upper clamp head (4) and a lower clamp head (5), and is characterized in that an angle adjusting mechanism (6) is arranged at the position where the clamp rod (3) is connected with the handle (1), the upper clamp head (4) and the lower clamp head (5) are rotatably arranged at the end part of the clamp rod (3), a first connecting wire (2) and a second connecting wire (7) are arranged in the clamp rod (3), one end of the first connecting wire (2) is rotatably connected with the upper clamp head (4), the other end of the first connecting wire penetrates through the angle adjusting mechanism (6) and is connected with the handle (1), the angle adjusting mechanism (6) comprises an adjusting rotating wheel (8), a threaded hole (9) is formed at the central position of the adjusting rotating wheel (8), one end of the second connecting wire (7) is rotatably connected with the lower clamp head (5), the other end is in threaded connection with the threaded hole (9) on the adjusting rotating wheel (8).

2. The adjustable nucleus pulposus clamp of claim 1, wherein: the handle (1) comprises a fixed handle (10) and a movable handle (11) which are rotatably connected through a rotating shaft, and the fixed handle (10) is fixedly connected with the angle adjusting mechanism (6).

3. The adjustable nucleus pulposus clamp of claim 2, wherein: the angle adjusting mechanism (6) further comprises a shell (12), the adjusting rotating wheel (8) is rotatably installed in the shell (12), the adjusting rotating wheel (8) comprises a main wheel body (15), a shifting wheel (16) and a center wheel (17) which are coaxially arranged, the shifting wheel (16) is arranged on the outer wall of the main wheel body (15), an axial through hole is formed in the main wheel body (15), the center wheel (17) is arranged in the through hole, the center wheel (17) is fixedly connected with the main wheel body (15) through a fan-shaped connecting rib (18), so that a three-quarter circular cavity (19) is formed between the outer wall of the center wheel (17) and the inner wall of the main wheel body (15), the first connecting wire (2) penetrates through the cavity (19) and is connected with the movable handle (11), and a threaded hole (9) is formed in the center wheel (17), the second connecting wire (7) is in threaded connection with the threaded hole (9).

4. The adjustable nucleus pulposus clamp of claim 3, wherein: the shell (12) is internally provided with a first limiting groove (13) and a second limiting groove (14), the main wheel body (15) is accommodated in the first limiting groove (13), the thumb wheel (16) is accommodated in the second limiting groove (14), and the bottom of the second limiting groove (14) is provided with an opening, so that part of the thumb wheel (16) extends out of the shell (12).

5. The adjustable nucleus pulposus clamp of claim 1, wherein: the end part of the clamp rod (3) is provided with two mounting plates (20) which are symmetrically arranged, and the upper clamp head (4) and the lower clamp head (5) are rotationally connected with the mounting plates (20) through rotating shafts.

6. The adjustable nucleus pulposus clamp of claim 1 or 5, wherein: the novel clamp is characterized in that a partition plate (21) is arranged in the clamp rod (3), the partition plate (21) divides the inner space of the clamp rod (3) into an upper channel and a lower channel which are equal in size, the first connecting wire (2) is arranged in the upper channel, and the second connecting wire (7) is arranged in the lower channel.

7. The adjustable nucleus pulposus clamp of claim 6, wherein: one end of the clamp rod (3) close to the angle adjusting mechanism (6) is further provided with a flushing joint (22) with a downward opening, and an inner hole of the flushing joint (22) is communicated with the upper channel and the lower channel.

8. The adjustable nucleus pulposus clamp of claim 6, wherein: the outer wall of the clamp rod (3) is provided with a scale value.

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