Precise puncture needle with guiding function

Abstract

The invention relates to the technical field of puncture needles, in particular to a precise puncture needle with a guiding function. The precise puncture needle comprises a puncture needle body, a needle handle and a guiding wire, wherein the upper end of the puncture needle body extends into the needle handle, a sealing block is arranged in the needle handle, the upper end of the puncture needlebody is fixedly connected with the sealing block, the upper end of the puncture needle body extends out of the upper surface of the sealing block, a spacer is arranged in an inner cavity of the puncture needle body and extends to a needle head from the inner cavity of the puncture needle body at the sealing block, the upper end and the lower end of the spacer are sealed, and the spacer divides the interior of the puncture needle body into a wire insertion channel and a contrast agent channel. Compared with an ultrasonic guiding puncture needle, the puncture needle has the advantages that thewhole puncture needle is simpler in structure and lower in cost, the defect of ultrasonic guiding when the ultrasonic guiding puncture needle is inserted into deep tissue of a human body is effectively overcome, and the whole puncture needle with the guiding function is wider in application range and higher in practicability.

Description

technical field [0001] The invention relates to the technical field of puncture needles, in particular to a precise puncture needle with a guiding function. Background technique [0002] The puncture needle is a medical device for puncturing the femoral artery during interventional therapy. The traditional puncture needle adopts the tip opening of the needle, and the doctor needs to puncture according to the experience and the state of the human body when puncturing. Cause femoral artery injury, cause puncture site hematoma, femoral artery dissection and other complications. In addition, the existing puncture needle cannot insert the guiding wire in time after puncturing and spraying blood, which may easily cause excessive blood loss of the patient and pollute the operating table. [0003] In order to solve the inaccurate positioning of the traditional puncture needle during the puncture process and rely entirely on the doctor's experience for puncture, people can use ultr...

AI Technical Summary

Problems solved by technology

The invention guides the puncture process by setting a micro-ultrasonic probe in the inner cavity of the puncture sleeve close to the needle, and the ultrasonic-guided puncture needle solves the problem of inaccurate positioning caused by the existing doctors' experience in puncture to a certain extent. , but the ultrasound-guided puncture needle requires the use of an ultrasound probe, a wire assembly connected to the ultrasound probe, and a power supply, resulting in a complex structure and high cost of the entire puncture needle, and the diameter of the entire puncture needle sleeve also needs to be increased, resulting in The wound left on the human body is larger

In addition, the ultrasound-guided puncture process is only suitable for guided puncture of human surface tissues, and cannot guide puncture of deeper tissues and organs of the human body.

Images