Compact axial output diaphragm pump for vascular surgery

Abstract

The invention discloses a compact axial output diaphragm pump for vascular surgery. The compact axial output diaphragm pump for vascular surgery comprises a pneumatic diaphragm pump and an automatic reversing valve arranged on the pneumatic diaphragm pump, wherein the pneumatic diaphragm pump comprises a pump housing, a central connecting pipe, two end covers and the two diaphragms, wherein the left end and right end of the central connecting pipe do not communicate with each other; the central connecting pipe passes through a central through hole; the two diaphragms are respectively arrangedat the left end and right end of the central connecting pipe in a sealing and sleeving manner; front cavities are formed by the diaphragms and the end covers; a rear cavity is formed between the diaphragm and the pump housing; and the automatic reversing valve comprises a three-position six-way reversing valve and a two-position four-way reversing valve which are in parallel connection. The central connecting pipe is used for connecting the two diaphragms in series, and enables the two diaphragms to have the same working frequency and the same swinging direction, so that the smooth output of pressure and blood flow is ensured; meanwhile the automatic reversing valve is set to change the air pressure of the rear cavities at the two ends of the pump housing; and the two front cavities alternatively pump blood to the downstream part of a blood vessel, so that the normal blood circulation of the blood vessel is maintained, and the window time of surgery is prolonged. The compact axial output diaphragm pump has stable output and compact structure, and reserves surgical space.

Description

technical field [0001] The present invention relates to a compact axial output diaphragm pump for vascular surgery. Background technique [0002] Atherosclerosis is a disease with a very high incidence rate, and it is also the culprit of stroke. At present, carotid endarterectomy is mainly used to remove the hardened plaque in the blood vessel to prevent stroke. The surgical method of arterial endarterectomy needs to tie up the carotid artery to cut off the flow and then cut the carotid artery for stripping. Since the brain cannot tolerate ischemia for a long time, the operation window is short, and the operation requires high skill for doctors. . Contents of the invention [0003] The object of the present invention is to overcome the above-mentioned shortcomings, and provide a compact axial output diaphragm pump for vascular surgery. [0004] To achieve the above object, the specific scheme of the present invention is as follows: [0005] A compact axial output diaphr...

AI Technical Summary

Problems solved by technology

[0002] Atherosclerosis is a disease with a very high incidence rate, and it is also the culprit of stroke. At present, carotid endarterectomy is mainly used to remove the hardened plaque in the blood vessel to prevent stroke. The surgical method of arterial endarterectomy needs to tie up the carotid artery to cut off the flow and then cut the carotid artery for stripping. Since the brain cannot tolerate ischemia for a long time, the operation window is short, and the operation requires high skill for doctors.

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