CN217592990U

CN217592990U - Micro-needle knife

Info

Publication number: CN217592990U
Application number: CN202122866980.1U
Authority: CN
Inventors: 杨涛; 温广毅; 杨鹏程
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-11-22
Filing date: 2021-11-22
Publication date: 2022-10-18
Anticipated expiration: 2031-11-22

Abstract

The utility model provides a micro-needle knife, includes pole portion and establishes the hook portion at pole portion one end, the one end and the pole portion of hook portion are connected and hook portion and pole portion structure as an organic whole, the other end of hook portion is sharp-pointed shape. The utility model discloses the principle: aiming at the diseases of patients with stenotic tenosynovitis, thecal cyst, hyperosteogeny affecting joint movement in partial joint cavity, free and abandoned bone block, ligament, foreign matter, partial internal fixation, tennis elbow, hyperosteogeny affecting calcaneus movement and the like; the micro-needle knife is inserted into an affected part, the end part of the hook part is sharp, so that the resistance of the micro-needle knife is reduced, and after the hook part reaches a designated position, the hook part hooks the tissue and pulls the tissue outwards to cut the tissue.

Description

Micro-needle knife

Technical Field

The utility model relates to a medical instrument, in particular to a micro-needle knife.

Background

When a patient suffers from diseases such as tenosynovitis, ganglion cyst and joint cavity hyperosteogeny at a narrow position such as a hand, the patient cannot be treated by normal operation, and tissues such as muscle, bone and the like at an affected part are difficult to cut off, so that effective treatment is difficult to form at present, and a tool with a small wound and capable of entering the narrow position for operation is needed.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a micro-needle knife which can cut off tissues at narrow parts.

In order to solve the technical problem, the technical scheme of the utility model is that: the utility model provides a micro-needle knife, includes pole portion and establishes the hook portion at pole portion one end, the one end and the pole portion of hook portion are connected and hook portion and pole portion structure as an organic whole, the other end of hook portion is sharp-pointed shape. The utility model discloses the principle: aiming at the diseases of tenosynovitis, ganglion cyst, joint cavity hyperosteogeny and the like at the narrow positions of the hands and the like of a patient; the micro-needle knife is inserted into an affected part, the end part of the hook part is sharp, so that the resistance of the micro-needle knife is reduced, and after the hook part reaches a designated position, the hook part hooks the tissue and pulls the tissue outwards to cut the tissue.

As an improvement, the rod part is of a hollow structure, and a peeping channel is formed in the rod part.

As an improvement, an inflow channel and an outflow channel are arranged in the wall of the rod part, and both the inflow channel and the outflow channel penetrate through two ends of the rod part.

As an improvement, the cross section of the rod part is narrow at two ends and wide in the middle.

As an improvement, the peeping channel is arranged in the middle of the rod part, and the inflow channel and the outflow channel are respectively positioned at two opposite sides of the peeping channel.

As a refinement, the shank is diamond-shaped.

Compared with the prior art, the utility model the beneficial effect who brings is:

the micro needle knife is inserted into an affected part, the end part of the hook part is sharp, so that the resistance of the micro needle knife entering is reduced, and after the hook part reaches a designated position, the hook part hooks the tissue and pulls the tissue outwards to cut the tissue; the utility model not only has small wound, but also can form effective treatment.

Drawings

Fig. 1 is a sectional view of a first microneedle blade.

Fig. 2 is a cross-sectional view of a second microneedle blade.

Fig. 3 is a cross-sectional view of a third microneedle blade.

Fig. 4 is a cross-sectional view of a hollow shaft.

Fig. 5 is a cross-sectional view of a solid stem.

Detailed Description

The present invention will be further explained with reference to the drawings.

As shown in fig. 1 to 3, a microneedle blade includes a shaft portion 1 and a hook portion 2 disposed at a distal end of the shaft portion 1, the hook portion 2 and the shaft portion 1 are of an integrated metal structure, and the hook portion 2 can be formed by laser cutting. One end of the hook part 2 is connected with the far end of the rod part 1, an opening of the hook part 2 is formed in one side of the connecting end of the hook part 2, one surface 22, facing the rod part 1, of the hook part 2 is arc-shaped and is a blade surface, tissues can be cut off, and one surface 21, facing away from the rod part 1, of the hook part 2 is sharp, so that resistance can be reduced. As shown in fig. 2, the rod part 1 is a hollow structure, a peeping channel 13 is formed in the rod part 1, a lens 3 of a peeping lens is embedded in the rod part, an optical fiber 31 of an external endoscope is fixed at the near end of the rod part 1 through a threaded joint, the optical fiber 31 is butted with the embedded lens 3, and the condition of a distal end surgical site is observed through the embedded lens 3 in the peeping channel; as shown in fig. 3, an endoscope can also be inserted into the peeping channel, and the lens 3 of the endoscope is arranged at the distal end of the rod part 1 and aligned with the hook part 2, so that the position can be found by the aid of the endoscope when performing an operation. As shown in fig. 1, the shaft portion 1 has a solid structure, and can be operated without the aid of an endoscope. As shown in fig. 4 and 5, an inflow channel 11 and an outflow channel 12 are arranged in the wall of the rod part 1, the inflow channel 11 and the outflow channel 12 both penetrate through two ends of the rod part 1, during operation, the blood stasis at the affected part may block the visual field of the endoscope, at this time, a cleaning liquid can be injected from the inflow channel 11, the cleaning liquid reaches the hook part 2 along the rod part 1, washes the blood stasis at the hook part 2, and is taken out through the outflow channel 12, so that the visual field of the endoscope is ensured to be clear. The cross section of the rod part 1 is narrow at two ends and wide in the middle, like the diamond-shaped rod part 1, the peeping channel 13 is arranged in the middle of the rod part 1, the inflow channel 11 and the outflow channel 12 are respectively positioned on two opposite sides of the peeping channel 13, and the inflow channel 11 and the outflow channel 12 are arranged at enough positions under the condition that the large-diameter peeping channel 13 is met.

The utility model discloses the principle: aiming at the diseases of patients suffering from stenosing tenosynovitis, thecal cyst, hyperosteogeny affecting joint movement in partial joint cavities, freely discarded bone blocks, ligaments, foreign bodies, partial internal fixed objects, tennis elbow, hyperosteogeny affecting calcaneus movement and the like; the micro needle knife is inserted into an affected part, the end part of the hook part 2 is sharp, so that the resistance of the micro needle knife entering is reduced, and after the hook part 2 reaches a designated position, the hook part 2 hooks the tissue and pulls the tissue outwards to cut the tissue. The foreign bodies in the joint cavity and the like can be taken out by extending the special pliers into the access channels at the two sides of the rod part.

Claims

1. A microneedle blade, characterized by: the hook part is arranged at one end of the rod part, one end of the hook part is connected with the rod part, the hook part and the rod part are of an integral structure, and the other end of the hook part is sharp; the rod part is of a hollow structure, and a peeping channel is formed in the rod part; an inflow channel and an outflow channel are arranged in the wall of the rod part, and both the inflow channel and the outflow channel penetrate through two ends of the rod part.

2. A microneedle blade according to claim 1, characterized in that: the section of the rod part is narrow at two ends and wide in the middle.

3. A microneedle blade according to claim 2, characterized in that: the peeping channel is arranged in the middle of the rod part, and the inflow channel and the outflow channel are respectively positioned on two opposite sides of the peeping channel.

4. A microneedle blade according to claim 2, characterized in that: the rod part is in a diamond shape.