Internal arteriovenous fistula puncture needle for blood purification

An arteriovenous fistula and blood purification technology, which can be used in drug devices, other medical devices, suction devices, etc., can solve the problem of metal needles easily damaging blood vessels, etc., to avoid acupuncture infection, improve blood collection, and ensure healthy. Effect

Pending Publication Date: 2020-01-14
毛坤剑
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  • Abstract
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  • Claims
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Problems solved by technology

[0004] One of the objectives of the present invention is to propose an arteriovenous fistula puncture needle for blood purification, which solves the technical problem in

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  • Internal arteriovenous fistula puncture needle for blood purification
  • Internal arteriovenous fistula puncture needle for blood purification
  • Internal arteriovenous fistula puncture needle for blood purification

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[0032] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. Obviously, the described embodiments are only some, but not all, embodiments of the present invention. Based on the embodiments of the present invention, all other implementations obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

[0033] refer to figure 1 , an arteriovenous fistula puncture needle for blood purification, comprising a fluororesin cannula indwelling needle 2 and a puncturing mechanism 5 . The fluororesin cannula indwelling needle 2 includes an indwelling fluororesin cannula 7, which is indwelled in the patient's body during the patient's blood purification process. The puncture mechanism 5 is used for puncturing the patient's blood purification arteriovenous fistula, and the puncture mechanism...

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Abstract

The invention relates to an internal arteriovenous fistula puncture needle for blood purification, which belongs to the technical field of blood purification equipment, and solves the technical problem that in the prior art, when a remaining part of a remaining needle moves or a blood sampling angle of the remaining needle is adjusted, a metal needle easily damages blood vessels. The internal arteriovenous fistula puncture needle for blood purification comprises a fluororesin sleeve remaining needle and a puncture mechanism, and the fluororesin sleeve remaining needle comprises a remaining fluororesin sleeve. In the blood purification process of a patient, the remaining fluororesin sleeve is indwelled in the body of the patient. The puncture mechanism is used for puncture of internal arteriovenous fistula for blood purification of the patient, the puncture mechanism is lined on the fluororesin sleeve remaining needle, arteriovenous puncture is conducted through the puncture mechanism,and the fluororesin sleeve remaining needle is made to enter arteries and veins. Only the fluororesin sleeve is reserved in the blood vessel, and no metal needle is reserved. Due to the fact that theremaining fluororesin sleeve is soft, the arm can be moved or the position and the blood sampling angle of the remaining fluororesin sleeve can be adjusted in the hemodialysis process, and the large blood sampling amount can be obtained.

Description

technical field [0001] The invention relates to the technical field of blood purification equipment, in particular to an arteriovenous fistula puncture needle for blood purification. Background technique [0002] Since the first application of arteriovenous fistula in hemodialysis in 1962, arteriovenous fistula has been the most ideal permanent access for patients with end-stage renal failure. Arteriovenous fistula can provide the required blood flow for hemodialysis treatment. However, there are many reasons that affect the use time of arteriovenous fistula, and the most important reason is the damage to blood vessels caused by frequent puncture. Therefore, the puncture technique and the protection of the fistula vessels are crucial. [0003] At this stage, most patients with blood purification use traditional dialysis fistula needles. However, traditional dialysis fistula needles all use metal needles. This metal needle has at least the following defects: (1) During the w...

Claims

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Application Information

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IPC IPC(8): A61M1/16
CPCA61M1/1601A61M1/1621A61M2202/0413A61M2202/0021
Inventor 毛坤剑许新建纪学鑫
Owner 毛坤剑
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