Ganglion puncture needle

Abstract

The invention relates to the technical field of puncture needles, in particular to a ganglion puncture needle. The ganglion puncture needle comprises a connecting pipe, a push rod and an elastic strip, wherein the head end of the connecting pipe is provided with an opening, the tail of the connecting pipe is provided with a needle body, the tail of the needle body is a sharp part, the pipe wall ofthe connecting pipe is obliquely provided with a branch pipe communicated with the connecting pipe, the head end of the elastic strip is located in the branch pipe, the tail end of the elastic strippenetrates through the connecting pipe to reach the sharp part, the push rod is movably inserted in the branch pipe, is connected with the head end of the elastic strip and push the elastic strip to move in the connecting pipe in the axial direction and radial direction of the connecting pipe, and the tail end of the elastic strip is provided with an annular part formed by bending. The ganglion puncture needle has the advantages that the annular part rotates to constantly stir cyst fluid in the cyst, so that the cyst fluid moves to the sharp part, the cyst fluid is accordingly uniform and easyto absorb, it is ensured that the cyst fluid is sucked thoroughly, meanwhile, the rotary motion of the elastic strip is utilized to avoid the situation that substances in the cyst fluid block a needle cavity of the needle body, and the dredging effect on the needle cavity of the needle body is good.

Description

technical field [0001] The invention relates to the technical field of puncture needles, in particular to a ganglion cyst puncture needle. Background technique [0002] Ganglion cyst is a cystic mass that occurs in the tendon sheath of a joint, a condition caused by degeneration of connective tissue around the joint capsule. Cysts contain colorless transparent or orange, light yellow thick mucus, mostly in the dorsum of the wrist and dorsum of the foot. Using puncture to extract the cyst fluid, and then injecting adrenocortical hormone or hyaluronidase has a certain effect on the treatment of ganglion cysts, and the trauma is small. However, because the cyst fluid is relatively viscous and has poor fluidity, it is difficult to aspirate thoroughly, which leads to the recurrence of ganglion cysts after puncture treatment. In addition, because the cyst fluid is relatively viscous, it is easy to block the puncture needle during aspiration, resulting in poor aspiration, and the...

AI Technical Summary

Problems solved by technology

However, the above scheme also has the following problems: (1) Since the active magnetic sliding sleeve and the passive magnetic sliding sleeve use magnetic force to cooperate and move synchronously, since the two are separated by the needle seat during the movement, the magnetic force is relatively small, and with the The increase in the number of long-term use will cause demagnetization of the two, which may cause the problem that the active magnetic sliding sleeve cannot drive the passive magnetic sliding sleeve during the movement of the two, resulting in the passive magnetic sliding sleeve being unable to drive the movement of the hook portion of the elastic strip, thus It is impossible to stir the cyst fluid in the cyst; (2) Since the passive magnetic sliding sleeve drives the hook part to move only along the vertical direction of the side hole, the stirring efficiency of the cyst fluid in the cyst is low; (3 ) Since the passive magnetic sliding sleeve drives the elastic strip to move along the axial direction of the needle body, when the needle cavity is blocked, the active magnetic sliding sleeve needs to be moved up and down greatly, and the dredging efficiency is relatively slow

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