CN113855182A - A puncture needle kit that can be grasped and fixed for vertebral body puncture - Google Patents

Abstract

Translated fromChinese

本发明公开了一种椎体穿刺用可抓取固定的穿刺针套件，其特征在于，包括：外套筒、引导通道管、椎体穿刺针、防滑柄、握持柄、固定尖爪、镍钛合金弹片；该穿刺针套件的引导通道管头端设计有四片固定尖爪，四片固定尖爪构成的端面从侧面看呈现斜角，可以适应引导通道头端与椎体横突倾斜接触，四个抓都可抓附在椎体上，更加稳固，且四片固定尖爪可张开抓附，使抓附力更加稳固；穿刺针从该引导通道管经皮进入后在对椎体穿刺过程中定位稳固，不会发生移位情况发生。

The invention discloses a graspable and fixed puncture needle kit for vertebral body puncture, which is characterized by comprising: an outer sleeve, a guide channel tube, a vertebral body puncture needle, a non-slip handle, a grip handle, a fixed sharp claw, a nickel Titanium alloy shrapnel; the head end of the guide channel tube of the puncture needle set is designed with four fixed claws, and the end surface formed by the four fixed claws presents an oblique angle when viewed from the side, which can adapt to the oblique contact between the head end of the guide channel and the transverse process of the vertebral body , the four grips can be attached to the vertebral body, which is more stable, and the four fixed claws can be opened and attached to make the gripping force more stable; The positioning is stable during the puncture process, and no displacement occurs.

Description

Centrum puncture is with can snatching fixed pjncture needle external member

Technical Field

The invention belongs to the field of centrum puncture instruments, and particularly relates to a grasping and fixing puncture needle kit for centrum puncture.

Background

The percutaneous centrum puncture is to puncture to the centrum by a puncture instrument under the guidance of CT or perspective imaging equipment, and aims to extract centrum tissues for biopsy, or is used for the purposes of preventing the centrum of a patient from collapsing, relieving pain and improving the life quality of the patient by injecting bone cement into the centrum through the puncture on the centrum in the vertebroplasty;

before the puncture needle enters the vertebral body through the skin for puncture, a puncture channel needs to be created, and the puncture needle forms a certain inclination angle with the transverse process of the vertebral body after reaching the vertebral body, so when the puncture needle is subjected to inward puncture thrust, the puncture needle is very easy to slip due to the small contact area between the puncture needle tip and the vertebral body surface and the inclination angle, and the puncture position deviates or the puncture needle cannot be smoothly punctured into the vertebral body at all; in order to solve the problem, a puncture needle guide barrel with a circle of sharp-pointed-claw thorns at the head end is designed, but certain defects still exist: this puncture needle guide cylinder of sharp claw thorn is taken to head end is inclination contact with the centrum after sending into the centrum, so sharp claw thorn of this guide cylinder also only two claws or three claws thereon can be grabbed and attach on the centrum transverse process, and all the other sharp claw thorn do not play a role, and when the puncture needle punctured through this guide cylinder, this guide cylinder can not firm grab and attach on the transverse process, just also can't play the fixed effect of puncture needle location in puncture process.

Disclosure of Invention

In order to solve the technical problems, the invention designs a grabbing and fixing puncture needle kit for centrum puncture, wherein four fixing sharp claws are designed at the end of a guide channel tube of the puncture needle kit, the end surface formed by the four fixing sharp claws presents an oblique angle when viewed from the side and can adapt to the oblique contact of the end of the guide channel and a transverse process of a centrum, the four claws can be grabbed and attached to the centrum and are more stable, and the four fixing sharp claws can be opened and grabbed, so that the grabbing force is more stable; the puncture needle is positioned stably in the process of puncturing the vertebral body after entering from the guide channel tube through the skin, and the displacement can not occur.

In order to achieve the technical effects, the invention is realized by the following technical scheme: the utility model provides a centrum puncture is with can snatching fixed pjncture needle external member which characterized in that includes: the device comprises an outer sleeve, a guide channel tube, a vertebral body puncture needle, an anti-skid handle, a holding handle, a fixed sharp claw and a nickel-titanium alloy elastic sheet;

the guide channel tube is movably sleeved in the outer sleeve, and the centrum puncture needle is movably sleeved in the guide channel tube; the outer walls at the tail ends of the outer sleeve and the guide channel pipe are connected with anti-skid handles; the tail end of the centrum puncture needle is connected with a holding handle; four fixed sharp claws are hinged at the head end of the guide channel tube, and each fixed sharp claw is connected with the guide channel tube through a nickel-titanium alloy elastic sheet;

furthermore, length scale marks are arranged on the outer surfaces of the outer sleeve, the guide channel tube and the centrum puncture needle;

furthermore, the four fixed sharp claws are different in length, the four fixed sharp claws are cylindrical after being folded, and the four fixed sharp claws are inclined angles when being folded or separated from each other from the side;

further, the length of the centrum puncture needle is larger than that of the guide channel tube, and the length of the guide channel tube is larger than that of the outer sleeve.

The invention also aims to provide a use method of the grasping and fixing puncture needle set for centrum puncture, which comprises the following steps:

(1) before use, the catheter is disinfected to ensure that the head end of the guide channel catheter is positioned in the outer sleeve and the head end of the centrum puncture needle is positioned in the guide channel catheter;

(2) under the guidance of CT guidance or fluoroscopy equipment, the handheld outer sleeve is communicated with the guide channel tube and the centrum puncture needle to be punctured together percutaneously; at the moment, the head end of the whole kit should form an inclined angle with the vertebral body;

(3) the outer sleeve is gradually retreated, and the fixed sharp claw at the head end of the guide channel pipe is elastically stretched under the action of the nickel-titanium alloy elastic sheet;

(4) pushing the guide channel tube forwards to enable the fixing sharp claw at the head end of the guide channel tube to be pierced on a vertebral body and to be grabbed and attached to the vertebral body surface for fixing;

(5) after the guide channel tube is firmly grabbed, force is applied to the centrum puncture needle forwards to enable the centrum puncture needle to puncture into the centrum.

The invention has the beneficial effects that:

the head end of a guide channel tube of the puncture needle kit is provided with four fixed pointed claws, the end surface formed by the four fixed pointed claws presents an oblique angle when viewed from the side surface, the head end of the guide channel can be adapted to be obliquely contacted with a transverse process of a vertebral body, the four claws can be grabbed and attached to the vertebral body more stably, and the four fixed pointed claws can be unfolded and grabbed and attached to ensure that the grabbing force is more stable; the puncture needle is positioned stably in the process of puncturing the vertebral body after entering from the guide channel tube through the skin, and the displacement can not occur; the length scale marks on the sleeve are convenient for mastering the puncture depth.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of the overall structure of a grasping and fixing puncture needle set for centrum puncture 1;

FIG. 2 is a schematic view of the overall structure of a grasping and fixing puncture needle set forcentrum puncture 2;

FIG. 3 is a schematic view of the outer sleeve of a graspable and securable spike assembly for use in a vertebral body puncture;

FIG. 4 is a schematic view of a guide channel tube structure of a grasping and fixing puncture needle set for centrum puncture 1;

FIG. 5 is a schematic view of the structure of a guide channel tube of a graspable and fixed needle set forcentrum puncture 2;

FIG. 6 is a schematic view of a centrum puncture needle configuration of a graspable and securable puncture needle assembly for centrum puncture;

FIG. 7 is an enlarged partial schematic view A of a graspable, securable puncture needle assembly for use in a vertebral body puncture;

FIG. 8 is an enlarged partial schematic view B of a graspable, fixed needle assembly for use in a vertebral body puncture;

in the drawings, the components represented by the respective reference numerals are listed below:

1-outer sleeve, 2-guide channel tube, 3-centrum puncture needle, 4-antiskid handle, 5-holding handle, 6-fixed sharp claw and 7-nickel-titanium alloy shrapnel.

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.

Examples

Referring to fig. 1 to 8, a grasping and fixing puncture needle set for vertebral body puncture is characterized by comprising: the puncture needle comprises an outer sleeve 1, aguide channel tube 2, acentrum puncture needle 3, ananti-skidding handle 4, a holding handle 5, a fixedsharp claw 6 and a nickel-titanium alloyelastic sheet 7;

aguide channel tube 2 is movably sleeved in the outer sleeve 1, and acentrum puncture needle 3 is movably sleeved in theguide channel tube 2; the outer walls of the tail ends of the outer sleeve 1 and theguide channel pipe 2 are connected withanti-skid handles 4; the tail end of thecentrum puncture needle 3 is connected with a holding handle 5; four fixedsharp claws 6 are hinged at the head end of theguide channel tube 2, and each fixedsharp claw 6 is connected with theguide channel tube 2 through a nickel-titanium alloyelastic sheet 7;

length scale marks are arranged on the outer surfaces of the outer sleeve 1, theguide channel tube 2 and thecentrum puncture needle 3; the puncture depth is convenient to master;

the four fixedsharp claws 6 are different in length, the four fixedsharp claws 6 are cylindrical after being folded, and the four fixedsharp claws 6 are seen as an inclined angle from the side after being folded or separated; the side surfaces of the four fixedsharp claws 6 are inclined angles, so that the angle between the puncture kit and a vertebral body after percutaneous puncture such as in vivo can be adapted, the four fixedsharp claws 6 can be adhered to the surface of the vertebral body, the stability is enhanced, and the vertebral body puncture is carried out by the vertebralbody puncture needle 3 under the positioning and guiding action of theguide channel tube 2 in the later period, so that the position deviation condition cannot occur;

the length of thecentrum puncture needle 3 is longer than that of theguide channel tube 2, and the length of theguide channel tube 2 is longer than that of the outer sleeve 1.

In conclusion, the head end of the guide channel tube of the puncture needle set is provided with four fixed pointed claws, the end surface formed by the four fixed pointed claws presents an oblique angle when viewed from the side surface, the head end of the guide channel can be adapted to obliquely contact with a transverse process of a vertebral body, the four claws can be grabbed and attached to the vertebral body and are more stable, and the four fixed pointed claws can be unfolded and grabbed, so that the grabbing force is more stable; the puncture needle is positioned stably in the process of puncturing the vertebral body after entering from the guide channel tube through the skin, and the displacement can not occur; the length scale marks on the sleeve are convenient for mastering the puncture depth.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims (6)

Translated fromChinese

1.一种椎体穿刺用可抓取固定的穿刺针套件，其特征在于，包括：外套筒、引导通道管、椎体穿刺针、防滑柄、握持柄、固定尖爪、镍钛合金弹片；1. A puncture needle set that can be grasped and fixed for vertebral puncture, it is characterized in that, comprises: outer sleeve, guide channel tube, vertebral puncture needle, anti-skid handle, grip handle, fixed sharp claw, nickel-titanium alloy shrapnel;所述外套筒内可活动的套接引导通道管，引导通道管内可活动的套接椎体穿刺针；外套筒和引导通道管的尾端处外壁上均连接防滑柄；椎体穿刺针的尾端处连接握持柄；引导通道管头端处铰接四片固定尖爪，每片固定尖爪与引导通道管之间通过镍钛合金弹片连接。A guide channel tube is movable in the outer sleeve, and a vertebral body puncture needle is movable in the guide channel tube; the outer sleeve and the outer wall of the tail end of the guide channel tube are both connected with anti-slip handles; the vertebral body puncture needle A grip handle is connected to the rear end of the guide channel tube; four fixed sharp claws are hinged at the head end of the guide channel tube, and each piece of fixed sharp claws is connected to the guide channel tube through a nickel-titanium alloy shrapnel.2.根据权利要求1所述一种椎体穿刺用可抓取固定的穿刺针套件，其特征在于，所述外套筒、引导通道管、椎体穿刺针外表面上均有长度刻度标示。2 . The graspable and fixed puncture needle kit for vertebral body puncture according to claim 1 , wherein the outer sleeve, the guide channel tube and the vertebral body puncture needle have length scale marks on the outer surface. 3 .3.根据权利要求1所述一种椎体穿刺用可抓取固定的穿刺针套件，其特征在于，所述固定尖爪有四片，每片长度不一，四片固定尖爪合拢后呈圆柱状，四片固定尖爪合拢或分开后从侧面看成倾斜角度。3. The puncture needle set for vertebral body puncture that can be grasped and fixed according to claim 1, wherein the fixed sharp claws have four pieces, and each piece has different lengths. Cylindrical, the four fixed claws are closed or separated to form an oblique angle from the side.4.根据权利要求1所述一种椎体穿刺用可抓取固定的穿刺针套件，其特征在于，所述椎体穿刺针长度大于引导通道管长度，引导通道管长度大于外套筒长度。4 . The graspable and fixed puncture needle kit for vertebral puncture according to claim 1 , wherein the length of the vertebral puncture needle is greater than the length of the guide channel tube, and the length of the guide channel tube is greater than the length of the outer sleeve. 5 .5.根据权利要求1-4任一项所述一种椎体穿刺用可抓取固定的穿刺针套件的使用方法，其特征在于，包括以下步骤：5. according to any one of claims 1-4, the use method of a puncture needle set that can be grasped and fixed for vertebral body puncture, is characterized in that, comprises the following steps:(1)使用前进行消毒处理，保证引导通道管头端位于外套筒内，椎体穿刺针头端位于引导通道管内；(1) Sterilize before use to ensure that the head end of the guide channel tube is located in the outer sleeve, and the head end of the vertebral body puncture needle is located in the guide channel tube;(2)在CT引导或透视设备引导下，手持外套筒连通引导通道管和椎体穿刺针一起经皮穿刺至椎体待穿刺点处；此时整个套件头端应与椎体面呈倾斜角度；(2) Under the guidance of CT or fluoroscopy equipment, hold the outer sleeve connected to the guide channel tube and the vertebral body puncture needle to percutaneously puncture the vertebral body to be punctured; at this time, the head end of the entire kit should be inclined to the vertebral body surface. angle;(3)逐渐往后退外套筒，引导通道管头端的固定尖爪在镍钛合金弹片作用下，会被弹力张开；(3) Gradually retreat the outer sleeve, and the fixed claws at the head end of the guide channel tube will be opened by the elastic force under the action of the nickel-titanium alloy shrapnel;(4)往前推引导通道管，使其头端的固定尖爪刺在椎体上，并抓附住椎体面固定；(4) Push the guide channel tube forward, so that the fixed claws at the head end pierce the vertebral body, and fix it by grasping the vertebral body surface;(5)引导通道管抓附牢固后，往前对椎体穿刺针施力，使其穿刺进椎体。(5) After the guide channel tube is firmly grasped, force the vertebral body puncture needle forward to puncture the vertebral body.6.根据权利要求1-4任一项所述一种椎体穿刺用可抓取固定的穿刺针套件，其公开了一种椎体穿刺用可抓取固定的穿刺针套件在椎体穿刺术中的应用。6. The graspable and fixed puncture needle set for vertebral puncture according to any one of claims 1-4, which discloses a graspable and fixed puncture needle set for vertebral puncture in vertebral puncture. applications in .

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