Hemodialysis (HD) internal fistula buttonhole puncture remaining needle device

Abstract

The invention discloses an Hemodialysis (HD) internal fistula buttonhole puncture remaining needle device, and relates to the technical field of medical instruments. The HD internal fistula buttonholepuncture remaining needle device comprises a remaining buttonhole, a puncture base, a puncture needle, a liquid sealing tube and a blunt needle, wherein the remaining buttonhole is separably arrangedat the front end of the puncture base; the puncture needle can penetrate in from the rear end of the puncture base and can penetrate out through the head end of the remaining buttonhole; after puncturing, the puncture base is separated from the remaining buttonhole, the remaining buttonhole is remained, and the blunt needle can puncture from the rear end of the remaining buttonhole. After first puncturing of the HD internal fistula buttonhole puncture remaining needle device, a puncture passage is remained, repeated puncture is not required, inserting of the blunt needle is convenient, and meanwhile, the probabilities of tissue infection and errhysis around internal fistula can be reduced.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a hemodialysis internal fistula buttonhole puncture and indwelling needle device. Background technique [0002] Hemodialysis (HD), referred to as hemodialysis, is also known as artificial kidney and kidney dialysis in popular terms. It is one of the most commonly used kidney replacement therapy methods; Remove harmful substances and excess water in the blood to achieve the purpose of purifying blood, correcting water, electrolyte and acid-base balance; according to different treatment methods, it is divided into intermittent hemodialysis and continuous hemodialysis; except for chronic renal failure In addition to replacement therapy, it is also widely used in acute renal failure, multiple organ failure, severe trauma, acute necrotizing pancreatitis, hyperkalemia, hypernatremia, drug or poison poisoning caused by different reasons. It has certain significance for alleviat...

AI Technical Summary

Problems solved by technology

[0003] Arteriovenous fistula is the preferred vascular access for hemodialysis, but repeated puncture of blood vessels is unavoidable, and repeated punctures will cause mechanical damage to the vessel wall, leading to a series of pathophysiological changes in the vessel wall. Common complications of puncture include: Bleeding, puncture failure, hematoma, aneurysm, thrombus, stenosis, etc., often lead to fistula failure. Vascular access is the "lifeline" for maintaining dialysis patients. Most dialysis patients use autologous arteriovenous internal fistula as long-term vascular access Therefore, the maintenance of arteriovenous fistula directly affects the service life of vascular access, as well as the quality of dialysis and life of patients; arteriovenous fistula puncture methods mainly include: regional method, rope ladder method, buttonhole method; buttonhole method The same puncture point, the same angle, and the same depth are used each time the needle is inserted, and a subcutaneous tunnel is formed after repeated puncture for about 2 months. Afterwards, a pure needle puncture tunnel is used for dialysis. The internal fistula is limited and the condition of the autologous blood vessels is poor. Patients also have a higher puncture success rate, and can prolong the service life of the internal fistula, and reduce complications such as hemangioma, vascular stenosis, and thrombus; Needle point, needle angle, and needle depth need to be the same, and repeated puncture by the same nurse for 2 months (about 6-8 times to form a subcutaneous tunnel); at the same time, the scab needs to be removed before puncture, which takes too long , before performing buttonhole puncture, wet compresses and disinfection should be carried out to remove scabs, requiring patients to go to the dialysis center in advance and delaying the time on the computer, the operation is more complicated and the cost is higher; Infection, bleeding at the buttonhole puncture point of buttonhole puncture can also lead to infection; the difficulty of blunt needle insertion during puncture is not convenient for medical staff to operate. Based on the above problems, the promotion and application of buttonhole puncture methods for internal fistula are restricted. There is no special puncture needle and puncture device for buttonhole puncture that solve the above problems

Images