Auxiliary implanting device for arteriovenous internal fistula indwelling needle

Abstract

The present invention relates to an auxiliary implanting device for an arteriovenous internal fistula indwelling needle. The auxiliary implanting device for the arteriovenous internal fistula indwelling needle at least comprises an indwelling needle assembly for establishing a fluid passage communicating with an inside of an operation subject, a blood return observation chamber arranged in the indwelling needle assembly and configured to return blood to the empty chamber when a needle tip of the indwelling needle assembly pricks the inside of the operation subject, and a hose arranged in the indwelling needle assembly and configured to return blood to the empty hose when one end of the hose is implanted into the inside of the operation subject along with the needle tip, and the auxiliary implanting device further comprises a visualization assembly and a manipulator assembly, the manipulator assembly is used for grasping the indwelling needle assembly and assisting to implant the operation subject, and wherein the manipulator assembly adjusts needle implanting operation postures of the indwelling needle assembly implanting into the operation subject based on chamber body blood return information and / or hose body blood return information of the indwelling needle assembly obtained by treatment of the visualization assembly.

Description

technical field [0001] The invention relates to the technical field of indwelling needles, in particular to an auxiliary insertion device for indwelling needles in arteriovenous fistulas. Background technique [0002] At present, arteriovenous fistula (AVF) has become the first choice for vascular access in maintenance hemodialysis patients because of its sufficient blood flow, safety and convenience, and is called the "lifeline" of hemodialysis patients. However, clinically, internal fistulas are often narrowed and occluded due to various reasons and lose their function, resulting in the failure of normal dialysis. How to take good care of internal fistulas and prolong the service life of internal fistulas is a problem that every nurse in the dialysis room needs to pay attention to. Regarding arteriovenous fistula, fistula is vascular access or autogenous arteriovenous fistula, which is the lifeline of hemodialysis patients and is responsible for leading blood out of the ex...

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Problems solved by technology

[0003] Although AVF is recognized as the best vascular access, the mature problem of autogenous arteriovenous fistula has always been a difficult problem for professional nurses engaged in hemodialysis

[0006] This type of automatic device injects drugs completely according to the preset plan. However, due to the large difference between the operation of injecting drugs and the operation of puncturing the arteriovenous fistula indwelling needle, the puncture operation of the arteriovenous indwelling needle is very complicated and needs to be based on multiple procedures. It is still difficult to realize the accuracy of indwelling needle puncture with a single sensor, and limited by the progress of image processing technology, the existing literature has not proposed a standard for guiding the automatic device to perform indwelling needle puncture. It is difficult to apply the automatic needle sticking device to puncture the indwelling needle of arteriovenous fistula

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