A subcutaneous buried puncture device for hemodialysis arteriovenous puncture

A technology of hemodialysis and venipuncture, applied in dialysis systems, catheters, guide needles, etc., can solve the problems of affecting the success rate of puncture, adversely affecting the safety of hemodialysis, and fear of patients, so as to improve the success rate of puncture and prevent falsehoods. Aneurysm, the effect of large blood flow

Inactive Publication Date: 2019-01-01
中山肾康医疗科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Hemodialysis requires frequent blood vessel punctures, causing patients to be afraid of punctures, which affects the success rate of punctures and is not conducive to safe hemodialysis

Method used

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  • A subcutaneous buried puncture device for hemodialysis arteriovenous puncture

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Comparison scheme
Effect test

Embodiment 1

[0016] Please refer to the figure, in an embodiment of the present invention, a subcutaneously embedded puncture device for hemodialysis arteriovenous puncture includes a puncture island 1, a venous puncture part 2 and an arterial puncture part 3, and the puncture island 1 adopts a high biocompatibility It is made of high-quality PC material, with no burr on the surface and ultra-thin structure, so as to reduce the discomfort brought to the patient when buried under the skin; 1. The arterial puncture part 3 is a blind hole. When the puncture island 1 is buried, the openings of the venous puncture part 2 and the arterial puncture part 3 face outward, and a layer of puncture membrane is detachably installed on the tops of the venous puncture part 2 and the arterial puncture part 3. The membrane can be made of excellent biocompatibility and puncture-resistant silica gel or other materials. Once the service life of the puncture membrane is reached, the puncture island 1 can be sepa...

Embodiment 2

[0019] The material of the venous end 4, the arterial end 5, and the vascular loop 6 can also be polyester, polytetrafluoroethylene or natural mulberry silk.

[0020] Anastomose the arteriovenous end with the arteriovenous end respectively, connect the end to the puncture island, and form a short circuit with the posterior vascular loop. For each dialysis, after the skin is disinfected, the puncture needle can be inserted from the front (arterial end) and rear (venous end) of the puncture island to complete the dialysis. It is easy to operate, even junior nurses can easily operate it, effectively avoiding puncture failure. There is no need for cuff binding during puncture, further reducing the chance of thrombus formation.

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Abstract

The invention relates to a medical device and disclosed is a subcutaneous buried puncture device for arteriovenous puncture in hemodialysis, including an arterial end, a venous end, a puncture island,a venous puncture part, an arterial puncture part and a vasospasm, the venous puncture part and the arterial puncture part are arranged on the puncture island, a layer of puncture film is detachablyinstalled on the top of the venipuncture part and the arterial puncture part. The venipuncture part is communicated with the venous end, the arterial end is communicated with the arterial puncture part, and the blood vessel loop between the venipuncture part and the arterial puncture part is communicated, so that the arteriovenous short circuit can be realized, and sufficient blood flow can be ensured after the puncture island is connected. The device is implanted subcutaneously in the forearm of the patient and consists of an arterial end, a venous end, a puncture island and a vasospasm to replace a patient who currently needs an artificial blood vessel. Compared with the prior art, the invention has the advantages of convenient puncture, effective prevention of infection, long service life, replaceable puncture membrane and the like.

Description

technical field [0001] The invention relates to a medical device, in particular to a subcutaneous buried puncture device for hemodialysis arteriovenous puncture. Background technique [0002] Hemodialysis, referred to as hemodialysis, also known as artificial kidney or kidney dialysis in popular terms, is a kind of blood purification technology. It uses the principle of semi-permeable membrane to remove various harmful and redundant metabolic wastes and excess electrolytes from the body through dispersion, so as to purify the blood and correct the water-electrolyte and acid-base balance. Arteriovenous fistula is the best vascular access for hemodialysis, and pseudoaneurysm formation and thrombosis are the main causes of fistula failure. After the fistula fails, the main treatment method is to implant artificial blood vessels to connect the arteriovenous ends. Hemodialysis requires frequent blood vessel punctures, which causes patients to be afraid of punctures, affects the...

Claims

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Application Information

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IPC IPC(8): A61M25/06A61M1/16
CPCA61M1/16A61M25/0606A61M25/065A61M25/0662A61M2025/0687
Inventor 陆磊
Owner 中山肾康医疗科技有限公司
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