Emergency self-expanding peripheral arteriovenous cannula and using method thereof

A technology of arteriovenous and venous blood vessels, applied in the direction of catheters, stents, etc., can solve problems such as the inability to quickly establish peripheral vascular access, circulatory life treatment, etc., and achieve the effects of preventing blood side leakage and leakage, reducing pollution, and reducing clinical operations

Inactive Publication Date: 2021-03-12
北京嘉维科技开发有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0003] In view of this, the present invention aims to solve the problem that in the prior art, when the patient has hypotension and hypovolemia, the peripheral vascular access cannot be quickly established for extracorporeal circulation life-saving treatment. The present invention provides an emergency self-expanding Peripheral arteriovenous catheters and methods of use thereof

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  • Emergency self-expanding peripheral arteriovenous cannula and using method thereof
  • Emergency self-expanding peripheral arteriovenous cannula and using method thereof
  • Emergency self-expanding peripheral arteriovenous cannula and using method thereof

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Embodiment

[0043]In the emergency treatment scene of respiratory and circulatory failure, most patients will experience hypotension, hypovolemia, etc., routinely disinfect the skin of the patient's intubation site, and coat the inner guide wire 3 with a puncture needle that can tear the guide sheath 2 1 After the patient's skin is punctured, the needle pierces the inner wall of the peripheral arterial and venous blood vessels. After the blood flows out from the tail of the puncture needle, the guide wire 3 is pushed through the lumen of the puncture needle 1 into the lumen of the peripheral arterial and venous blood vessels of the patient. Hold the puncture needle 1 firmly by hand, push the tearable guide sheath 2 along the puncture needle 1 and the catheter guide wire 3 into the patient's peripheral arterial and venous blood vessel lumen, withdraw the puncture needle 1 and the guide wire 3, and wait for guidance The sheath 2 enters the blood vessel, and 1 / 3-1 / 2 of the total length of the...

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Abstract

The invention relates to the technical field of medical instruments, in particular to an emergency self-expanding peripheral arteriovenous cannula and a using method thereof. The problem that in the prior art, under the emergency condition, when a patient has the conditions of low blood pressure and low blood volume, a peripheral vascular access cannot be quickly established for extracorporeal circulation life treatment is solved. According to the technical scheme, the product comprises a puncture assembly and an intubation assembly; wherein the front end of the cannula body is connected witha blood vessel covered stent, the outer wall of the blood vessel covered stent is sleeved with a release sleeve, the release sleeve can slide along the outer wall of the blood vessel covered stent, and the diameter of the release sleeve is larger than that of the cannula body; a guide sheath is of a hollow cylindrical structure with one conical end formed by integrally buckling a first assembly and a second assembly which are symmetrical in structure; The intubation tube assembly is arranged in the guide sheath, a puncture needle is arranged in a blood vessel covered stent and the intubation tube body in a penetrating mode, the two ends of the puncture needle extend out of the guide sheath, and the guide wire is arranged in the puncture needle in a penetrating mode.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to an emergency self-expanding peripheral arteriovenous cannula and a method for using the same. Background technique [0002] At present, the skin at the patient's peripheral arteriovenous vessels (mainly femoral artery and vein, internal jugular vein or axillary artery) is firstly disinfected in clinical practice, and then the puncture needle is percutaneously punctured or the skin is incised to expose the patient's arterial and veins, and the guide wire is guided Put the end of the puncture needle into the patient's arteriovenous blood vessels, withdraw the puncture needle, separate the tissue with blunt force along the guide wire with the cannula with the inner sheath, and insert the cannula with the inner sheath into the patient's peripheral arteriovenous blood vessels, Withdraw the inner sheath and complete the procedure. It requires the patient's peripheral arteries ...

Claims

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Application Information

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IPC IPC(8): A61M25/00A61F2/90A61F2/95
CPCA61F2/90A61F2/95A61F2002/9511A61M25/0082
Inventor 不公告发明人
Owner 北京嘉维科技开发有限公司
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