Hollow needle knife and application method thereof

Abstract

The invention discloses a hollow needle knife and an application method thereof, and belongs to the field of medical instruments. The hollow needle knife comprises a needle knife handle, a hollow needle knife body, a soft sleeve and a positioning and fixing mechanism, wherein the hollow needle knife body is fixedly connected to the front end face of the needle knife handle; and the positioning and fixing mechanism sleeves the hollow needle knife body with the soft sleeve in a positioning mode, the cutting capacity of the needle knife is fully utilized, the position and positioning relation of the soft sleeve and the needle knife are adjusted through the positioning and fixing mechanism, and during sweeping and scattering actions, the soft sleeve shields and protects a knife edge and is embedded into a focus at the same time. Therefore, it is guaranteed that the soft tissue is not damaged during sweeping and stripping treatment, after stripping and sweeping treatment, the soft sleeve can be conveniently left in the focus of a patient, the adhesion position is separated, and the rapid and accurate medical effect is achieved. The problems that in the prior art, a needle point only has a penetrating function, and the sweeping action cutting capacity is poor are solved. In addition, the hollow needle knife body has a precise medicine feeding function.

Description

technical field [0001] The invention relates to the field of medical equipment, more specifically to a hollow needle knife and an application method thereof. Background technique [0002] Currently, there are two types of needle medical devices used clinically, one is a solid needle and the other is a hollow needle. The needle tip of the existing hollow needle only has the function of piercing. When encountering the tissue with relatively strong toughness in the human lesion, it does not have the ability to cut, and it is difficult to perform medical treatment. It can only be pried by the needle or other hard objects. It is easy to accidentally injure other soft tissues of the patient or bring pain to the patient. Although the "ordinary small needle knife" has the ability to penetrate and cut, the knife edge is sharp and has no shielding function to protect the knife edge. got hurt. [0003] The existing acupuncture-knife treatment method is to use the needle-knife to ente...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems in the prior art that the common needle knife or other acupuncture therapy does not have the ability to cut, incise and keep tubes to isolate the adhesion tissue when sweeping away, the present invention provides a "hollow needle knife and its application method", Make full use of the cutting ability of the needle knife, and then adjust the position and positioning relationship between the soft sleeve and the needle knife through the positioning and fixing mechanism. Effectively isolate the drug while retaining the anti-inflammatory injection channel to avoid the pain of repeated treatment for patients

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