Epidural nerve release kit

Abstract

The invention discloses an epidural nerve releasing kit, and relates to the technical field of medical instruments. Comprising an epidural needle used for puncturing into the epidural space, a nerve releasing catheter entering the epidural space through the epidural needle, a locking connector matched with the nerve releasing catheter for medicine injection and an electrical stimulation assembly for conveying stimulation current to a pain part through the nerve releasing catheter. Through mutual cooperation of the epidural needle, the nerve releasing catheter, the locking connector and the electrical stimulation assembly, a doctor is assisted in completing a nerve releasing operation, and the operation efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to an epidural neurolysis kit. Background Art

[0002] Epidural neurolysis is a procedure that releases some of the scar tissue surrounding a compressed nerve in the epidural space of the spine to allow medication to reach the affected area. This procedure is used to relieve pain caused by the scarring.

[0003] Epidural scarring most commonly occurs after back surgery, when bleeding into the epidural space occurs and the subsequent healing process replaces the epidural fat with fibrotic tissue. This is a natural consequence of surgical intervention. Sometimes, a ruptured disc with leaking disc contents can also cause scarring.

[0004] How to provide an epidural neurolysis kit to facilitate medical personnel to conveniently perform epidural neurolysis surgery has become a difficult problem that needs to be solved urgently by those skilled in the art. Summary of the Invention

[0005] The purpose of the present invention is to provide an epidural neurolysis kit to solve the problem of lack of special surgical instruments in epidural neurolysis surgery.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] An epidural neurolysis kit comprises an epidural needle for puncturing into the epidural space, a neurolysis catheter for entering the epidural space through the epidural needle, a locking joint for cooperating with the neurolysis catheter for drug injection, and an electrical stimulation component for delivering stimulation current to the painful area through the neurolysis catheter.

[0008] Optionally, the epidural needle includes a needle seat, a needle tube, a liner core and a liner core seat, wherein the needle tube is mounted on the needle seat; the liner core is mounted on the liner core seat, the liner core is inserted into the needle tube, and the liner core seat corresponds to the needle seat;

[0009] The front end needle of the needle tube is inclined at a preset angle compared to the body of the needle tube.

[0010] Optionally, the neurolysis catheter includes an outer catheter and a spring, the outer catheter is installed on the outside of the spring, the front end of the spring is exposed from the outer catheter, the front end of the spring is provided with a round head for avoiding tissue damage, and the front end of the spring is provided with a structure with a larger spacing for drug infusion.

[0011] Optionally, the locking joint includes a first connecting member and a second connecting member threadedly connected together, the first connecting member includes a first external connecting tube, a silicone hose for connecting to the external catheter is coaxially provided inside the front end of the first external connecting tube, and an external thread is provided on the outer side of the rear end of the first external connecting tube;

[0012] The second connecting member includes a second external connecting tube, the front end inner wall of the second external connecting tube is provided with an internal thread corresponding to the external thread on the outer wall of the first external connecting tube; the front end of the second external connecting tube is provided with a hard round tube, and the rear end of the second external connecting tube is provided with a cannula for connecting to an external syringe.

[0013] When the first external connecting tube and the second external connecting tube are connected together, the silicone hose and the hard round tube are abutted together. At this time, the silicone hose squeezes the outer catheter, and the lumen of the silicone hose, the lumen of the hard round tube and the lumen of the cannula are connected.

[0014] Optionally, the electrical stimulation component includes a guide wire and a stimulation cable, and the guide wire is detachably inserted into the outer catheter; the tail end of the stimulation cable is connected to the neurostimulator, and the front conductive part is overlapped on the rear end body of the guide wire.

[0015] Optionally, a handle is installed at the rear end of the guide wire, and the handle is insulated.

[0016] Optionally, the front end of the stimulation cable is further provided with a clip electrically connected to the guide wire.

[0017] Compared with the prior art, the present invention has the following beneficial technical effects:

[0018] The present invention provides an epidural neurolysis kit, comprising an epidural needle for puncturing and entering the epidural space, a neurolysis catheter for entering the epidural space through the epidural needle, a locking connector for drug injection in conjunction with the neurolysis catheter, and an electrical stimulation assembly for delivering a stimulating current to the painful area through the neurolysis catheter. The present invention utilizes the epidural needle, neurolysis catheter, locking connector, and electrical stimulation assembly to coordinate and assist surgeons in performing neurolysis procedures, improving surgical efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below with reference to the accompanying drawings.

[0020] Figure 1 This is a schematic structural diagram of the epidural neurolysis kit of the present invention;

[0021] Figure 2 This is a schematic diagram of the structure of the thin catheter of the present invention;

[0022] Figure 3 This is a schematic diagram of the explosion structure of the locking member of the present invention;

[0023] Figure 4 is a cross-sectional view of the locking member of the present invention;

[0024] Figure 5 Schematic diagram of the guidewire structure of the present invention;

[0025] Figure 6 This is a schematic diagram of the stimulation cable structure of the present invention.

[0026] Description of reference numerals: 1. epidural needle; 2. neurolysis catheter; 3. locking connector; 4. electrical stimulation assembly;

[0027] 11. Needle seat; 12. Needle tube; 13. Liner core; 14. Liner core seat;

[0028] 21. Outer tube; 22. Spring; 23. Round head;

[0029] 31. First connecting member; 32. Second connecting member;

[0030] 311. First external connecting pipe; 312. Silicone hose;

[0031] 321. Second external connecting tube; 322. Hard round tube; 323. Intubation tube;

[0032] 41. Guidewire; 42. Stimulation cable;

[0033] 411. Handle; 421. Clip. DETAILED DESCRIPTION

[0034] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0035] like Figure 1-6 As shown, an epidural neurolysis kit includes an epidural needle 1 for puncturing into the epidural space, a neurolysis catheter 2 for entering the epidural space through the epidural needle 1, a locking joint 3 for cooperating with the neurolysis catheter 2 for drug injection, and an electrical stimulation component 4 for delivering stimulation current to the painful area through the neurolysis catheter 2.

[0036] Specifically, the epidural needle 1 includes a needle seat 11, a needle tube 12, a liner 13, and a liner seat 14. The needle tube 12 is mounted on the needle seat 11; the liner 13 is mounted on the liner seat 14, and the liner 13 is inserted into the needle tube 12. The liner seat 14 corresponds to the needle seat 11.

[0037] The front needle tip of the needle tube 12 is tilted at a preset angle relative to the body of the needle tube 12 .

[0038] Specifically, the neurolysis catheter 2 includes an outer catheter 21 and a spring 22. The outer catheter 21 is installed on the outside of the spring 22, and the front end of the spring 22 is exposed from the outer catheter 21. The front end of the spring 22 is provided with a round head 23 for avoiding tissue damage. The front end of the spring 22 is provided with a structure with a larger spacing for drug infusion.

[0039] The medicine outlet 24 is manufactured by adjusting the pitch size of the spring 22 , and the medicine flows into the epidural space through the gap of the spring 22 body.

[0040] Specifically, the locking joint 3 includes a first connecting member 31 and a second connecting member 32 that are threadedly connected together. The first connecting member 31 includes a first external connecting tube 311. A silicone hose 312 for connecting to the external conduit 21 is coaxially provided inside the front end of the first external connecting tube 311. An external thread is provided on the outer side of the rear end of the first external connecting tube 311.

[0041] The second connecting member 32 includes a second external connecting tube 321. The inner wall of the front end of the second external connecting tube 321 is provided with an internal thread corresponding to the external thread on the outer wall of the first external connecting tube 311. A hard round tube 322 is provided inside the front end of the second external connecting tube 321. The rear end of the second external connecting tube 321 is installed with a cannula 323 for connecting to an external syringe.

[0042] When the first external connecting tube 311 and the second external connecting tube 321 are connected together, the silicone hose 312 and the hard round tube 322 are abutted together. At this time, the silicone hose 312 squeezes the outer catheter 21, and the lumen of the silicone hose 312, the lumen of the hard round tube 322 and the lumen of the cannula 323 are connected.

[0043] Specifically, the electrical stimulation component 4 includes a guide wire 41 and a stimulation cable 42. The guide wire 41 is detachably inserted into the outer catheter 21. The tail end of the stimulation cable 42 is connected to the nerve stimulator, and the front conductive part is overlapped on the rear end body of the guide wire 41.

[0044] Specifically, a handle 411 is installed at the rear end of the guide wire 41, and the handle 411 is insulated.

[0045] Specifically, the front end of the stimulation cable 42 is further provided with a clip 421 electrically connected to the guide wire 41. An insulating protective sleeve is installed on the outside of the clip 421.

[0046] The working process of the present invention is as follows:

[0047] Puncture operation: insert the epidural needle 1 into the human body.

[0048] Introduction operation of the outer catheter 21: insert the guide wire 41 into the outer catheter 21, the front end of the guide wire 41 abuts against the round head 23, and the outer catheter 21 with the guide wire 41 is inserted into the epidural needle 1, wherein the guide wire 41 plays a supporting and guiding role, and by pushing the guide wire 41 forward, the neurolysis catheter 2 is driven to move synchronously.

[0049] Electrical stimulation operation: insert the tail end of the stimulation cable 42 into the nerve stimulator, hold the insulating handle 421, and connect the front end of the stimulation cable 42 to the guide wire 41.

[0050] Injection operation: pull out the guide wire 41 in the outer catheter 21, put the silicone hose 312 in the first connecting piece 31 on the tail end of the outer catheter 21, and then thread the second external connecting tube 321 in the second connecting piece 32 to the first external connecting tube 311 in the first connecting piece 31. During the installation of the second connecting piece 32, the hard round tube 322 in the second connecting piece 32 squeezes the silicone hose 312, causing the silicone hose 312 to deform and firmly clamp the outer catheter 21. After the second connecting piece 32 is installed, insert the syringe with liquid medicine into the cannula 323 to perform the injection operation.

[0051] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0052] The embodiments described above are merely descriptions of preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by persons skilled in the art should fall within the scope of protection defined by the claims of the present invention.

Claims

1. An epidural neurolysis kit, characterized by: The invention comprises an epidural needle (1) for puncturing into the epidural space, a neurolysis catheter (2) for entering the epidural space through the epidural needle (1), a locking joint (3) for cooperating with the neurolysis catheter (2) for drug injection, and an electrical stimulation component (4) for delivering a stimulation current to a painful area through the neurolysis catheter (2).

2. The epidural neurolysis kit according to claim 1, characterized in that: The epidural needle (1) comprises a needle seat (11), a needle tube (12), a liner (13) and a liner seat (14); the needle tube (12) is mounted on the needle seat (11); the liner (13) is mounted on the liner seat (14); the liner (13) is inserted into the interior of the needle tube (12); the liner seat (14) and the needle seat (11) correspond to each other; The front needle tip of the needle tube (12) is tilted at a preset angle relative to the body of the needle tube (12).

3. The epidural neurolysis kit according to claim 1, characterized in that: The neurolysis catheter (2) comprises an outer catheter (21) and a spring (22), wherein the outer catheter (21) is mounted on the outside of the spring (22), and the front end of the spring (22) is exposed from the outer catheter (21), and the front end of the spring (22) is provided with a round head (23) for avoiding tissue damage, and the front end of the spring (22) is provided with a structure with a large spacing for drug infusion.

4. The epidural neurolysis kit according to claim 3, characterized in that: The locking joint (3) comprises a first connecting piece (31) and a second connecting piece (32) threadedly connected together, the first connecting piece (31) comprising a first external connecting tube (311), a silicone hose (312) for connecting to the external conduit (21) being coaxially arranged inside the front end of the first external connecting tube (311), and an external thread being arranged on the outside of the rear end of the first external connecting tube (311); The second connecting member (32) includes a second external connecting tube (321), the inner wall of the front end of the second external connecting tube (321) is provided with an internal thread corresponding to the external thread on the outer wall of the first external connecting tube (311); a hard round tube (322) is provided inside the front end of the second external connecting tube (321), and a cannula (323) for connecting to an external syringe is installed at the rear end of the second external connecting tube (321). When the first external connecting tube (311) and the second external connecting tube (321) are connected together, the silicone hose (312) and the hard circular tube (322) are in contact with each other. At this time, the silicone hose (312) squeezes the outer catheter (21), and the lumen of the silicone hose (312), the lumen of the hard circular tube (322) and the lumen of the cannula (323) are connected.

5. The epidural neurolysis kit according to claim 3, characterized in that: The electrical stimulation component (4) comprises a guide wire (41) and a stimulation cable (42), wherein the guide wire (41) is detachably plugged into the outer catheter (21); the tail end of the stimulation cable (42) is connected to the nerve stimulator, and the front conductive part is clamped on the rear end body of the guide wire (41).

6. The epidural neurolysis kit according to claim 5, characterized in that: A handle (411) is installed at the rear end of the guide wire (41), and the handle (411) is insulated.

7. The epidural neurolysis kit according to claim 5, characterized in that: The front end of the stimulation cable (42) is also provided with a clip (421) electrically connected to the guide wire (41).

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