CN215458491U

CN215458491U - Puncture expansion assembly for percutaneous vertebroplasty

Info

Publication number: CN215458491U
Application number: CN202122094703.3U
Authority: CN
Inventors: 牟国良; 严奇; 徐翔
Original assignee: Canwell Medical Co ltd
Current assignee: Canwell Medical Co ltd
Priority date: 2021-09-01
Filing date: 2021-09-01
Publication date: 2022-01-11
Anticipated expiration: 2031-09-01

Abstract

The utility model discloses a puncture expansion assembly for percutaneous vertebroplasty, which comprises a cannula assembly, a puncture needle core assembly and a handle, wherein the cannula assembly comprises a cannula body and a connecting seat, and the connecting seat is fixed on the side wall of the top of the cannula body; the puncture needle core assembly comprises a needle core and a puncture seat, and the needle core is fixed on the puncture seat; the needle core is located inside the sleeve body, the puncture seat is located at the top of the connecting seat, the handle is provided with a clamping groove hole penetrating through end faces on two sides of the handle, and the connecting seat and the puncture seat can be detachably connected in the clamping groove hole. The utility model has simple structure and convenient operation.

Description

Puncture expansion assembly for percutaneous vertebroplasty

Technical Field

The utility model relates to the field of medical instruments, in particular to a puncture and expansion assembly for percutaneous vertebroplasty.

Background

With the further expansion of the aging population proportion, the incidence of osteoporotic vertebral compression fracture in China is increasing day by day. Clinically, osteoporotic spine fracture is one of the common fractures of the old, and accounts for about 45% of osteoporotic fractures. Percutaneous vertebroplasty is widely applied to treatment of senile thoracolumbar osteoporotic fracture, and is the most successful and effective minimally invasive technique for treating the diseases at present. This operation usually needs puncture expansion subassembly to puncture, fix a position a plurality of centrums simultaneously, and current puncture expansion subassembly handle is bulky, leads to operation in-process mutual interference, and the operation is inconvenient, can't carry out many punctures simultaneously, and the operation time is long.

Therefore, the technical problem to be solved is how to provide a puncture and dilation assembly for percutaneous vertebroplasty, which is convenient to use and has high surgical efficiency.

SUMMERY OF THE UTILITY MODEL

In view of the above, the utility model provides a puncture and dilation assembly for percutaneous vertebroplasty, which is convenient to operate, can perform multiple punctures simultaneously, and has short operation time.

In order to achieve the purpose, the utility model adopts the following technical scheme: a puncture expansion assembly for percutaneous vertebroplasty comprises a cannula assembly, a puncture needle core assembly and a handle, wherein the cannula assembly comprises a cannula body and a connecting seat, and the connecting seat is fixed on the side wall of the top of the cannula body; the puncture needle core assembly comprises a needle core and a puncture seat, and the needle core is fixed on the puncture seat; the needle core is located inside the sleeve body, the puncture seat is located at the top of the connecting seat, the handle is provided with a clamping groove hole penetrating through end faces on two sides of the handle, and the connecting seat and the puncture seat can be detachably connected in the clamping groove hole.

The utility model has the beneficial effects that: sleeve pipe body and connecting seat fixed connection, the puncture seat is located the top of fixing base, the nook closing member is located the inside of sleeve pipe body, the leading-in patient vertebra department of sleeve pipe body through the nook closing member, the joint slotted hole that sets up on the handle is used for joint puncture seat and connecting seat, conveniently exert the effort and send nook closing member and sleeve pipe to the target location, because the joint can be dismantled with connecting seat and puncture seat to the handle, when patient needs many punctures, get into the internal sleeve pipe body of patient and nook closing member with handle and puncture and dismantle, cooperate all the other sleeve pipe bodies and nook closing member to send into the internal target location of patient, accomplish the operation, the operation is simple, high efficiency.

Preferably, an external threaded pipe is fixedly arranged at the top of the connecting seat and is communicated with the sleeve body, a mounting pipe is fixedly arranged in the middle of one side of the puncture seat, and the needle core is positioned in the middle of the mounting pipe; the installation pipe is the internal thread pipe, external thread pipe and internal thread pipe adaptation are connected.

Preferably, the handle is a block-shaped shell and comprises a forefinger end and a little finger end, the width of the forefinger end is larger than that of the little finger end, and the clamping slot hole is close to the forefinger end.

Preferably, the size of the opening of the clamping slot hole corresponding to the top of the handle is smaller than that of the opening of the clamping slot hole corresponding to the bottom of the handle.

Preferably, the bottom of the handle is a wave surface which is adapted to be held by fingers and corresponds to the direction of the index finger tip pointing to the little finger tip.

Preferably, the sleeve body is fixedly arranged in the middle of the connecting seat, and arc faces convenient for fingers to hold are arranged at the positions, close to the two sides of the sleeve body, of the bottom end of the connecting seat.

Preferably, the puncture seat is clamped in the clamping groove hole, and the top of the puncture seat extends out of the clamping groove hole.

Preferably, the connecting seat and the puncture seat are made of any one of plastic and metal.

Drawings

FIG. 1 is a first schematic view of the assembly of a percutaneous vertebroplasty penetrating dilator assembly according to the present invention;

FIG. 2 is a second schematic view of the assembly of a percutaneous vertebroplasty penetration and dilation assembly of the present invention;

fig. 3 is a schematic view of the handle of a penetrating and dilating component for percutaneous vertebroplasty according to the present invention.

1 sleeve assembly, 11 sleeve pipe bodies, 12 connecting seats, 2 puncture needle core assemblies, 21 needle cores, 22 puncture seats, 3 handles, 31 index finger ends, 32 little finger ends, 4 external thread pipes, 5 mounting pipes, 6 clamping slotted holes, 7 cambered surfaces and 8 wavy surfaces.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 3 of the drawings, a puncture dilating assembly for percutaneous vertebroplasty according to an embodiment of the present invention includes a cannula assembly 1, a puncture core assembly 2 and a handle 3, wherein the cannula assembly 1 includes a cannula body 11 and a connecting seat 12, and the connecting seat 12 is fixed on a top side wall of the cannula body 11; the puncture needle core assembly 2 comprises a needle core 21 and a puncture seat 22, wherein the middle part of one side of the puncture seat 22 is fixedly provided with an installation tube 5, the needle core 21 is fixed on the puncture seat 22, and one end of the needle core is positioned in the middle of the installation tube 5; the stylet 21 is located inside the sleeve body 11, the mounting tube 5 is fixedly connected with the top of the connecting seat 12, the handle 3 is provided with a clamping groove hole 6 penetrating through the end faces of two sides of the handle, and the connecting seat 12 and the puncture seat 22 can be detachably connected in the clamping groove hole 6.

In other embodiments, the piercing seat is directly abutted against the connecting seat and is correspondingly embedded into the clamping slot hole.

In other embodiments, the top of the connecting seat 12 is fixedly provided with an external threaded pipe 4, the external threaded pipe 4 is communicated with the sleeve body 11, the mounting pipe 5 is an internal threaded pipe, and the external threaded pipe 4 is in adaptive connection with the internal threaded pipe.

In other embodiments, the handle 3 is a block-shaped housing including a finger end 31 and a small finger end 32, the finger end 31 having a width dimension greater than a width dimension of the small finger end 32, and the snap slot 6 being adjacent to the finger end 31.

In other embodiments, the size of the opening of snap slot 6 corresponding to the top of handle 3 is smaller than the size of the opening corresponding to the bottom of the handle.

Specifically, the bottom of the handle 3 is a wavy surface 8 adapted to be held by fingers corresponding to the direction from the index finger end 31 to the little finger end 32. The finger holding state of the medical staff is matched, so that the force application is convenient, and the handle is convenient to be held by hand to puncture and guide the cannula body and the needle core.

In other embodiments, the sleeve body 11 is fixedly located in the middle of the connecting seat 12, and the bottom end of the connecting seat 12 is provided with the arc surfaces 7 for facilitating fingers to hold at positions close to two sides of the sleeve body 11. When the connecting seat enters the clamping slot hole, the bottom end surface of the connecting seat is in matched transition with the bottom end surface of the handle, so that the holding hand feeling of medical staff is not influenced.

In other embodiments, the puncture seat 22 is snapped into the snap slot 6, and the top of the puncture seat 22 extends out of the snap slot 6. When the puncture seat is detached, the medical staff can press the puncture seat with force, so that the puncture seat and the handle are detached.

Specifically, the connecting seat 12 and the puncture seat 22 are made of any one of plastic and metal, and the plastic material is injection molded.

When the puncture expansion assembly is used, the handle can be detached, and the simultaneous puncture operation of a plurality of vertebral bodies can avoid mutual interference; the whole structure of the handle accords with the ergonomics, and is convenient for a surgeon to control and feel comfortable;

during operation, firstly, the puncture needle is used for puncture and positioning under the C-arm machine, and the puncture needle is ensured to be in the vertebral pedicle on the positive lateral position image. Second, the handle is removed, leaving the cannula assembly and the introducer core assembly on the pedicle. And finally, repeating the operation 1, and performing puncture and positioning on the adjacent vertebral bodies by using a second puncture. The adjacent centrums can not touch each other by using tools simultaneously, thereby shortening the operation time and reducing the radiation damage of medical care personnel during CT perspective. Is convenient for popularization and use.

For the device and the using method disclosed by the embodiment, the description is simple because the device and the using method correspond to the method disclosed by the embodiment, and the relevant points can be referred to the description of the method part.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The puncture expansion assembly for the percutaneous vertebroplasty is characterized by comprising a sleeve assembly (1), a puncture core assembly (2) and a handle (3), wherein the sleeve assembly (1) comprises a sleeve body (11) and a connecting seat (12), and the connecting seat (12) is fixed on the side wall of the top of the sleeve body (11); the puncture needle core assembly (2) comprises a needle core (21) and a puncture seat (22), and the needle core (21) is fixed on the puncture seat (22); the stylet (21) is located inside the sleeve body (11), the puncture seat (22) is located at the top of the connecting seat (12), a clamping groove hole (6) which runs through the end faces of the two sides of the handle is formed in the handle (3), and the connecting seat (12) and the puncture seat (22) can be detachably connected into the clamping groove hole (6).

2. The puncture and dilation assembly for percutaneous vertebroplasty according to claim 1, wherein an external threaded tube (4) is fixedly arranged at the top of the connection seat (12), the external threaded tube (4) is communicated with the cannula body (11), a mounting tube (5) is fixedly arranged in the middle of one side of the puncture seat (22), and the needle core (21) is positioned in the middle of the mounting tube (5); the installation pipe (5) is an internal thread pipe, and the external thread pipe (4) is connected with the internal thread pipe in an adaptive mode.

3. A puncture and dilation assembly for percutaneous vertebroplasty according to claim 1, wherein the handle (3) is a block-shaped housing comprising an index finger end (31) and a small finger end (32), the width of the index finger end (31) is larger than the width of the small finger end (32), and the snap slot (6) is close to the index finger end (31).

4. A percutaneous vertebroplasty dilatation assembly according to claim 3, wherein the size of the opening of the snap slot (6) corresponding to the top of the handle (3) is smaller than the size of the opening corresponding to the bottom of the handle.

5. A puncture and dilation assembly for percutaneous vertebroplasty according to claim 4, wherein the bottom of the handle (3) is a wavy surface (8) adapted to be held by fingers corresponding to the direction of the index finger tip (31) pointing to the little finger tip (32).

6. The puncture and dilation assembly for percutaneous vertebroplasty according to claim 1, wherein the cannula body (11) is fixedly located in the middle of the connecting seat (12), and the bottom end of the connecting seat (12) is provided with an arc surface (7) for facilitating finger holding at a position close to two sides of the cannula body (11).

7. A puncture dilation assembly for percutaneous vertebroplasty according to claim 1, wherein the puncture seat (22) is snapped into the snap-in slot (6), and the top of the puncture seat (22) extends out of the snap-in slot (6).

8. The penetrating dilator assembly for percutaneous vertebroplasty according to claim 1, wherein the connecting seat (12) and the penetrating seat (22) are made of any one of plastic and metal.