A kind of auxiliary implantation device for indwelling needle of arteriovenous fistula

Abstract

The present invention relates to an auxiliary insertion device for arteriovenous fistula indwelling needles, at least comprising: an indwelling needle assembly, which is used to establish a fluid passage connected to the inside of an operation object, and a blood return observation chamber provided on the indwelling needle assembly, It is configured to guide blood back into its empty compartment when the needle tip of the indwelling needle assembly is pierced into the operation object, and the flexible tube provided on the indwelling needle assembly is configured to be inserted with the needle tip at one end When operating the inside of the object, the blood is returned to its empty tube, and the auxiliary insertion device also includes a visualization component and a manipulator component, and the manipulator component is used to grasp the indwelling needle assembly and assist it to be placed into the operation object, wherein the The manipulator component adjusts its needle insertion operation posture for placing the indwelling needle assembly into the operation object based on the cartridge body blood return information and / or tube body blood return information about the indwelling needle assembly processed by the visualization component.

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...

AI Technical Summary

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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