CN221083690U - Laminboard lifting tool - Google Patents

Abstract

The utility model discloses a vertebral plate lifting tool, which comprises two clamping rods, wherein flexible pieces are arranged in the middle parts of the clamping rods; the two embedded ends of the grasping forceps are respectively connected to the two clamping rods; the inner sides of the two clamping rods are provided with a plurality of tooth claws, and the two grabbing pincers are respectively arranged on two sides of the flexible piece. According to the utility model, the tooth claws between the two clamping rods are fixed, and the two grabbing pincers are arranged on the clamping rods, so that the stability of grabbing the vertebral plate can be improved, and the operation is convenient. According to the utility model, the flexible piece is arranged between the two grasping forceps, so that the two grasping forceps can control the clamping rods to perform different operations, the function that one part of the clamping rods are fixed and the other part of the clamping rods are movable can be realized, the second grasping of the vertebral plate during separation of the yellow ligament can be avoided, the operation time is saved, the operation visual field of an operator is increased, the complete vertebral plate osseous structure with the spinous process can be reserved to the greatest extent, and the surgical instrument is convenient to receive and implant back.

Description

Laminboard lifting tool

Technical Field

The utility model belongs to the technical field of medical appliances, and particularly relates to a vertebral plate lifting tool.

Background

At present, in order to reduce nerve injury and maintain spine stability of patients clinically encountering spinal canal tumors, laminectomy decompression and tumor excision are generally adopted, and spine stability of the patients can be maintained to the greatest extent by adopting a laminectomy technology for retaining spinous processes. In order to keep the lamina as intact as possible and take it out when the lamina is resected, conventionally we use a causticizer (toothed straight forceps) to separate the adhesion between the dura mater sac and the ligamentum flavum by using a stripper while pulling the lamina. When the tumor position relates to more vertebral bodies, the yellow ligament needs to be separated, an assistant needs to downwards extend by staggered hands to grasp the vertebral plate again, the process is complicated, and when the spinal processes are clamped and lifted by the causticizing pliers, on one hand, soft tissues on the spinal processes are damaged, on the other hand, the holding force is limited to a certain extent, and the spinal cord or the dural sac is damaged easily to fall off.

Patent publication No. CN205795742U, name are patent application of novel dark lamina drag hook, novel dark lamina drag hook is by two clamp handle portion cross hinge, two clamp handle portion tip is connected with the clamp arm that is less than the clamp handle portion through two fall connecting portions respectively, clamp arm tip is provided with the clamp respectively, novel be provided with clamp jaw aperture scale and elasticity aperture fixed part on the dark lamina drag hook, novel dark lamina drag hook of utilizing this kind of structure, can avoid the slippage phenomenon that sled the patient transverse process lower part arouses with dark lamina drag hook, need not extend the wound to transverse process lower part, the wound degree of depth when reducible operation shortens the operation healing period, can avoid long-time extrusion muscle to arouse the phenomenon such as blood circulation is unsmooth, muscle healing delays. Although the vertebral plate can be lifted, the fixation and lifting cannot be completed simultaneously, and the operation is inconvenient.

Disclosure of utility model

In order to overcome the problems in the prior art, the utility model aims to provide a vertebral plate lifting tool, which can realize lifting while fixing through the arrangement of two grabbing pliers and can directly grab double-side vertebral plates without damaging spinous processes.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a lamina lifting tool comprising:

the middle parts of the two clamping rods are respectively provided with a flexible piece;

the two embedded ends of the gripping pliers are respectively connected to the two clamping rods;

the inner sides of the two clamping rods are respectively provided with a plurality of tooth claws, and the two grabbing pincers are respectively arranged on two sides of the flexible piece along the axial direction of the clamping rods.

Optionally, the embedded ends of the gripping pliers are arranged between two adjacent tooth claws along the axial direction of the clamping rod.

Optionally, the teeth inside the two clamping bars are arranged oppositely and have the same number.

Optionally, the tooth claw is a curved rod, and concave sides of the tooth claws face the same direction.

Optionally, the tooth claw is matched with the shape of the vertebral plate of the spine.

Optionally, the grasping forceps comprise two forceps rods, the two forceps rods are connected through a hinge, and handles are arranged at the tops of the forceps rods.

Optionally, the gripping pliers comprise a first gripping pliers, a second gripping pliers and a third gripping pliers which are arranged along the axial direction of the clamping rod; wherein the second grasping forceps are arranged between the first grasping forceps and the third grasping forceps; the handles of the second holding forceps are connected with each other, and the handles of the first holding forceps and the third holding forceps are separated from each other.

Optionally, the flexible member includes a first flexible member disposed between the first grasping forceps and a second grasping forceps, and a second flexible member disposed between the second grasping forceps and a third grasping forceps.

Optionally, two handles of the second gripping pliers are respectively provided with a handle buckle, and the two handle buckles can be mutually clamped.

Optionally, the flexible member is a rubber rod.

Compared with the prior art, the utility model has the following beneficial effects:

According to the vertebral plate lifting tool, the toothed claw between the two clamping rods is fixed, and the two grabbing clamps are arranged on the clamping rods, so that the stability of grabbing vertebral plates can be improved, and the operation is convenient. According to the utility model, the flexible piece is arranged between the two grasping forceps, so that the two grasping forceps can control the clamping rods to perform different operations, the function that one part of the clamping rods are fixed and the other part of the clamping rods are movable can be realized, the second grasping of the vertebral plate during separation of the yellow ligament can be avoided, the operation time is saved, the operation visual field of an operator is increased, the complete vertebral plate osseous structure with the spinous process can be reserved to the greatest extent, and the surgical instrument is convenient to receive and implant back. In the technique of laminectomy, the lamina that remains in the spinous process is traditionally removed, and the lamina or spinous process is grasped with a causticizer, which may result in unstable grasping or damage to the spinous process tissue. The utility model can directly grasp the two side vertebral plates without damaging the spinous process, and completely remove the vertebral plate with the spinous process by matching with nerve stripper.

Drawings

The drawings described herein are for illustration purposes only and are not intended to limit the scope of the present disclosure in any way. In addition, the shapes, proportional sizes, and the like of the respective components in the drawings are merely illustrative for aiding in understanding the present utility model, and are not particularly limited. In the drawings:

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

FIG. 2 is a schematic diagram of an embodiment of the present utility model;

FIG. 3 is a schematic front view of a second embodiment of the grasping forceps of the utility model;

FIG. 4 is a schematic view of a second embodiment of the grasping forceps of the utility model;

the clamping rod 1-clamping rod 2-tooth claw 3-flexible piece 31-first flexible piece 32-second flexible piece 4-grasping forceps 41-first grasping forceps 42-second grasping forceps 43-third grasping forceps 401-clamp rod 402-handle 421-handle buckle.

Detailed Description

In order to make the technical solution of the present utility model better understood by those skilled in the art, the technical solution of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, shall fall within the scope of the utility model.

It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

The present utility model will be described in detail with reference to the accompanying drawings.

As shown in fig. 1, the laminboard lifting tool of the utility model comprises two clamping rods 1 and two grasping forceps 4, wherein flexible pieces 3 are arranged in the middle of the clamping rods 1, and two embedded ends of the grasping forceps 4 are respectively connected to the two clamping rods 1. In particular, the lengths of the two clamping bars 1 are identical.

A plurality of tooth claws 2 are arranged on the two clamping rods 1, and the tooth claws 2 are arranged on the inner sides opposite to each other between the two clamping rods 1. The tooth claw 2 is a curved rod piece, the concave sides of a plurality of tooth claws 2 face the same direction, and the tooth claw 2 and the two clamping rods 1 are in the same plane. Specifically, the number of the teeth 2 on the two clamping bars 1 is the same and the teeth are arranged oppositely. Specifically, the number of the tooth claws 2 on each clamping rod 1 is four, and two tooth claws 2 are respectively arranged on two sides of the flexible piece 3 along the axial direction of the clamping rod 1. The embedded ends of the grasping forceps 4 are arranged between two adjacent tooth claws 2 along the axial direction of the clamping rod 1.

Optionally, the teeth 2 on the same clamping rod 1 are parallel to each other. Optionally, the tooth claw 2 is matched with the shape of the vertebral plate of the spine. Specifically, the ends of the two clamping rods 1 are provided with the tooth claws 2, and the ends of the two clamping rods 1 on the same side are provided with the tooth claws 2.

Specifically, the two grasping forceps 4 are respectively disposed at two sides of the flexible member 3, the grasping forceps 4 include two forceps rods 401, the two forceps rods 401 are connected through a hinge, and grips 402 are disposed at the tops of the forceps rods 401.

When the vertebral plate lifting tool is used, the two-sided vertebral plates are gripped and fixed by the gripping forceps 4 through the tooth claws 2, while the dural sac and the ligamentum flavum are separated, and the other gripping forceps 4 are lifted.

Examples

As shown in fig. 2, the flexible member 3 includes a first flexible member 31 and a second flexible member 32, and the grasping forceps 4 includes a first grasping forceps 41, a second grasping forceps 42, and a third grasping forceps 43. Wherein the handles 402 of the second grasping forceps 42 are connected to each other, and the handles 402 of the first grasping forceps 41 and the third grasping forceps 43 are separated from each other. The first flexible member 31 is disposed between the first grasping forceps 41 and the second grasping forceps 42, and the second flexible member 32 is disposed between the second grasping forceps 42 and the third grasping forceps 43.

Optionally, as shown in fig. 3 to 4, the grip 402 of the second gripping pliers 42 has two handles, two grip buckles 421 are disposed on the inner sides of the two handles, the two grip buckles 421 are matched with each other, and the two grip buckles 421 can be clamped with each other when the grip 402 is closed.

In particular, the flexible member 3 has elasticity, and the clamping bar 1 is a rigid member. Optionally, the flexible member 3 is a rubber rod, and the materials of the clamping rod 1 and the grasping forceps 4 are made of titanium alloy.

The laminectomy tool of the present embodiment is suitable for multiple vertebral bodies, and can grasp and fix bilateral lamina through the second grasping forceps 42, and can perform separation by sliding and lifting through the first grasping forceps 41 and the third grasping forceps 43, and when one of the first grasping forceps 41 and the third grasping forceps 43 is difficult to perform separation by lifting, the other can perform separation by bidirectional sliding and lifting.

The device elements in the above embodiments are conventional device elements unless otherwise specified, and the structural arrangement, operation or control modes in the embodiments are conventional arrangement, operation or control modes in the art unless otherwise specified.

Finally, it is noted that the above-mentioned embodiments are merely for illustrating the technical solution of the present utility model, and that other modifications and equivalents thereof by those skilled in the art should be included in the scope of the claims of the present utility model without departing from the spirit and scope of the technical solution of the present utility model.

Claims (10)

1. A lamina lifting tool, comprising:

the two clamping rods (1), wherein flexible pieces (3) are arranged in the middle of each clamping rod (1);

At least two grasping forceps (4), wherein two embedded ends of the grasping forceps (4) are respectively connected to the two clamping rods (1);

The inner sides of the two clamping rods (1) are respectively provided with a plurality of tooth claws (2), and the two grabbing pincers (4) are respectively arranged on two sides of the flexible piece (3) along the axial direction of the clamping rods (1).

2. A laminoplasty lifting tool as claimed in claim 1, wherein the embedded ends of the grasping forceps (4) are arranged between two adjacent teeth (2) along the axial direction of the clamping rod (1).

3. A laminoplasty lifting tool as claimed in claim 1, wherein the teeth (2) inside two of said clamping bars (1) are oppositely disposed and equal in number.

4. A laminboard lifting tool as claimed in claim 1, wherein the tooth pawls (2) are curved bars and the concave sides of a plurality of tooth pawls (2) are oriented the same.

5. A lamina lifting tool according to claim 1, characterized in that the tooth claw (2) matches the shape of the spinal lamina.

6. The lamina lifting tool according to claim 1, wherein the grasping forceps (4) comprise two forceps rods (401), the two forceps rods (401) are connected through a hinge, and a grip (402) is arranged at the top of each forceps rod (401).

7. A laminectomy tool as claimed in claim 6, wherein the gripping jaws comprise a first gripping jaw (41), a second gripping jaw (42) and a third gripping jaw (43) arranged in the axial direction of the clamping rod (1); wherein the second grasping forceps (42) are arranged between the first grasping forceps (41) and a third grasping forceps (43); the handles (402) of the second grasping forceps (42) are connected with each other, and the handles (402) of the first grasping forceps (41) and the third grasping forceps (43) are separated from each other.

8. A laminectomy tool as claimed in claim 7, wherein the flexible member (3) comprises a first flexible member (31) and a second flexible member (32), the first flexible member (31) being disposed between the first and second grasping forceps (41, 42), the second flexible member (32) being disposed between the second and third grasping forceps (42, 43).

9. The lamina lifting tool according to claim 7, wherein two handles of the handle (402) of the second grasping forceps (42) are respectively provided with a handle buckle (421), and the two handle buckles (421) can be mutually clamped.

10. A laminboard lifting tool as claimed in claim 1, wherein the flexible member (3) is a rubber rod.