Nerve entrapment releasing needle

Abstract

The utility model belongs to the technical field of medical instruments, and discloses a nerve entrapment releasing needle which comprises a cutter handle and a cutter bar, the cutter bar comprises a cutter body and a cutter head, and the cutter head comprises a puncture needle, a stopper and a groove. The puncture needle is in the shape of a knife needle tip with a sharp groove, and the shape of the needle tip of the puncture needle is displayed clearly under ultrasonic guidance, so that the puncture process is easier and smoother, and the damage to related tissues is small; the stopper is a smooth anti-damage blunt end; one end of the groove is designed to be a smooth blunt end, the nerve is prevented from being damaged when the groove slides on the surface of the nerve, and the blunt end at the other end of the groove can prevent the clamped and pressed ligament from sliding out of the groove in the nerve releasing process. The knife handle is designed to be anti-skidding, so that the holding is more stable. The outer side of the scalpel handle is provided with two concave marks in the coaxial direction, and it is ensured that the puncture needle of the scalpel head is perpendicular to the corresponding ligament of the clamping and pressing nerve. The nerve entrapment releasing needle solves the problems that an existing nerve entrapment releasing needle is large in operation difficulty and not accurate enough.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field, concretely relates to a nerve compression release needle. BACKGROUND

[0002] Wrist arthroscopic minimally invasive surgery is guided puncture function to wrist joint parts through using ultrasonic guide instrument and relevant equipment, then open operation instrument such as this nerve compression release needle is used to strip wrist joint nerve tissue, but it is not conducive to cut off or damage wrist joint nerve tissue, thereby delaying operation process.

[0003] The nerve compression release needle is based on the intended use of the surgical needle in open operation instrument, that is, used to explore, probe, pick, prick the target tissue of wrist joint, and the product produced by combining with clinical practice. It is worth mentioning that the cutter head part of the product is very thin, and the cutter head includes a puncture needle with a sharp needle tip shape, a blocker with an anti-damage and smooth blunt head structure and a groove with a U-shaped concave type smooth blunt head structure. The blocker and the groove can avoid damaging or cutting off the wrist joint nerve tissue when sliding on the nerve surface, and play a protective role. The puncture needle can accurately puncture the target tissue under ultrasonic guidance, so that the operation is more smoothly completed. Therefore, the nerve compression release needle causes less trauma to the human body, has low infection rate, less pain during operation, fast postoperative recovery, short hospitalization time, small side effects and high safety. SUMMARY

[0004] To solve the problem that the traditional surgical needle in the prior art causes cut or damage to the wrist joint nerve tissue during wrist arthroscopic minimally invasive surgery, the utility model provides a nerve compression release needle. After the nerve compression release needle enters the wrist joint wound of a patient, it accurately explores, probes, picks and pricks the target tissue of the wrist joint under ultrasonic guidance. In this process, it is not easy to cause cut or damage to the nerve tissue at the wrist joint, and the problem of high operation difficulty of the existing nerve compression release needle is avoided.

[0005] To achieve the above-mentioned purpose, the technical scheme of the utility model is as follows:

[0006] A nerve compression releasing needle comprises a two-part knife rod and a knife handle, and the knife rod and the knife handle are an integral structure; the knife rod comprises a knife head and a knife body; the knife head comprises a puncture needle, a stopper and a groove; the puncture needle is provided with a sharp needle tip; the puncture needle is connected to one side of the groove; the groove is a smooth blunt structure of a U-shaped groove type; the other side of the groove is connected to the stopper; the stopper is a smooth damage-preventing blunt structure; the knife body is a slender cylindrical structure; the knife rod and the knife handle are coaxial concentric cylindrical structures; the front end of the outer surface of the knife handle is provided with two radially symmetrical concave marks in the coaxial direction; and the rear end of the outer surface of the knife handle is provided with a knurled structure, and the knurled structure of the knife handle has an anti-skid function and conforms to the ergonomic characteristics.

[0007] Further, the knurled structure of the knife handle is processed by a lathe in one time.

[0008] Further, the knife rod and the knife handle are made of stainless steel.

[0009] Further, the knife rod and the knife handle are reusable products.

[0010] Compared with the prior art, the device has the advantages that: (1) the knife head of the device only leaves a punctate wound on the patient after the operation, has small trauma, low infection rate, wide treatment range, fast effect, small side effect and fast recovery; (2) the device is made of medical stainless steel and has excellent biocompatibility; (3) the device is reusable, has high use rate, reduces production cost and avoids resource waste; (4) the device is used for micro-invasive operation and can intuitively show the operation process; (5) the device has relatively low auxiliary condition requirement, reduces the operation process and operation time and improves efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0011] Fig. 1 It is a three-dimensional schematic view of the device in Example 1.

[0012] Fig. 2 It is a schematic view of the device in Example 1.

[0013] Fig. 3 It is a schematic view of the knife head of the device in Example 1.

[0014] In the figure: knife rod 1, knife handle 2, knife head 11, knife body 12, puncture needle 111, stopper 112 and groove 113. DETAILED DESCRIPTION

[0015] In order to enable the person skilled in the art to better understand the technical scheme of the device, the device is further explained and described below in combination with the drawings.

[0016] Embodiment 1

[0017] Referring to Figs. 1-3 A nerve compression releasing needle, comprising a cutter rod 1 and a cutter handle 2, the cutter rod 1 and the cutter handle 2 are an integral structure; the cutter rod 1 comprises a cutter head 11 and a cutter body 12, the cutter head 11 comprises a puncture needle 111, a stopper 112 and a groove 113, characterized in that the puncture needle 111 is a sharp needle tip shape, the puncture needle 111 is connected to one side of the groove 113, the groove 113 is a "U-shaped" smooth blunt structure design, the other side of the groove 113 is connected to the stopper 112, the stopper 112 is a smooth damage-free blunt structure; the cutter body 12 is an elongated cylindrical structure; the cutter rod 1 and the cutter handle 2 are coaxial concentric cylindrical structures; the front end of the outer surface of the cutter handle 2 has two coaxial radial symmetric concave marks, the rear end of the outer surface of the cutter handle 2 is a knurled structure, the knurled part of the cutter handle 2 has an anti-skid function, and meets the ergonomic characteristics.

[0018] The knurled part of the cutter handle 2 is processed by a lathe.

[0019] The cutter rod 1 and the cutter handle 2 are both made of stainless steel.

[0020] The cutter rod 1 and the cutter handle 2 are both reusable products.

[0021] In addition, it should be noted that the patent described as a nerve compression releasing needle, but also applicable to other endoscopic minimally invasive surgery, as long as the puncture needle, the stopper, the groove type nerve compression releasing needle of equivalent design, the name can be different. Any equivalent or simple change made according to the structure, features and principles described in the patent concept is included in the protection scope of the patent. The skilled in the art of the patent can make various modifications or supplements or use similar ways to replace the described specific embodiments, as long as it does not deviate from the structure of the patent or exceed the scope defined in the claims, and it should belong to the protection scope of the patent.

Claims

1. A nerve compression releasing needle, comprising a two-part structure of a blade rod and a handle, the blade rod and the handle being an integral structure; the blade rod comprising a two-part structure of a blade head and a blade body; The tool head comprises a puncture needle, a stopper and a groove, characterized in that, the puncture needle being in the shape of a sharp needle tip, the puncture needle being connected to one side of the groove, the groove being a "U-shaped" smooth blunt structure, the other side of the groove being connected to the stopper, the stopper being a smooth and non-injurious blunt structure; the blade body being in the shape of an elongated cylinder; the blade rod and the handle being coaxial and concentric cylindrical structures; the rear end of the outer surface of the handle being in the shape of knurling, the knurling part of the handle having an anti-slip function and conforming to the ergonomic characteristics.

2. The nerve compression releasing needle according to claim 1, wherein The blade rod and the handle are made of stainless steel.

3. The nerve compression releasing needle according to claim 2, wherein The blade rod and the handle are reusable products.

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