Bypass blood vessel guiding device for internal arteriovenous fistula of artificial blood vessel

Abstract

The invention discloses a bypass blood vessel guiding device for internal arteriovenous fistula of an artificial blood vessel. The bypass blood vessel guiding device comprises a guiding syringe and a connector, wherein the rear end of the connector can be connected with the artificial blood vessel; the guiding syringe is fixedly mounted at the front end of the connector; a sleeve head is fixed outside the syringe needle of the guiding syringe; one end of the artificial blood vessel is arranged at the rear end of the connector in a sleeving manner, a fixing ring for fixing the artificial blood vessel on the connector tightly sleeves the artificial blood vessel, a barrier chip for spacing the fixing ring is fixed on the connector, and the end part of the artificial blood vessel and the end part of the fixing ring are separately jointed with the rear side of the barrier chip. The bypass blood vessel guiding device disclosed by the invention is quite simple in structure, reasonable in design and convenient to use and operate; the blood vessel guiding device can be used for forming a tunnel, so that the artificial blood vessel can be smoothly guided from the tunnel, the whole process has small damage to blood vessels and tissues of a patient, the process operation of a surgery is simple, the pain of the patient can be relieved, and the probability of infection of the patient is reduced.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and in particular relates to an artificial vessel arteriovenous fistula diversion vessel guiding device. Background technique [0002] Chronic renal failure is the progressive progression of various chronic kidney diseases, causing irreversible loss of nephrons and renal function, resulting in clinical syndrome characterized by retention of metabolites, disturbance of water, electrolyte and acid-base balance, and endocrine disorders. The advanced stage of renal failure is uremia. [0003] With the development of society and the emergence of an aging population, the incidence of chronic kidney disease and the chronic renal failure caused by it is increasing year by year in the world. There are about 2.2 to 2.7 million people with end-stage renal failure in the world every year. Patients receiving dialysis treatment It is growing at a rate of 10% to 12% per year. The prevalence of chronic...

AI Technical Summary

Problems solved by technology

Its disadvantages are: (1) as an object that enters the human body, especially in close contact with the patient's blood, it should have a medical device produced by a unit with strict medical qualifications; (2) all the devices currently used may cause the patient's Damage to subcutaneous blood vessels and tissues, and ligation with sutures or pulling the end of the artificial blood vessel may cause damage to the end of the artificial blood vessel, which increases the pain of the patient; because the size of the tunnel is difficult to control with a hemostat, it cannot Ensure that the tunnel is completely consistent with the thickness of the artificial blood vessel. If the blood vessel is too small, it will be compressed, and if it is too large, a gap will be left; (3) The operation process is difficult to operate, prolonging the operation time and increasing the chance of infection

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