Blood vessel blocker capable of controlling blood flow volume

Abstract

The invention discloses a blood vessel blocker capable of controlling the blood flow volume. The blood vessel blocker comprises a supporting plate and a squeezing plate which are oppositely arranged on the two sides of a blood vessel. The supporting plate is connected with a support spanning the blood vessel, a groove with the central line perpendicular to the squeezing plate is formed in the end, located outside the squeezing plate, on the support, an air bag and a guiding block moving along the central line of the groove are arranged in the groove, the air bag is communicated with an inflating device, and the guiding block is connected with a squeezing plate through a connecting rod. The blood vessel blocker further comprises a pressure sensor used for measuring the pressure of the blood vessel, and a probe of the pressure sensor is arranged on the inner side of the supporting plate or the squeezing plate. By means of the blood vessel blocker, blood flow blocking at any degree can be obtained in operation according to experimental needs, and thus the blood flow blocking situation of blood vessels of different thicknesses and different kinds can be more accurately and more visually measured; meanwhile, the reversible operation of increasing or decreasing of the blood flow volume can be achieved, and convenience is provided for blood flow volume detection related experiments or treatment control.

Description

Technical field [0001] The invention relates to a medical device, in particular to a blood vessel blocker capable of controlling blood flow according to actual needs. Background technique [0002] In medical research, it is often necessary to observe the effects of different degrees of ischemia on the function of its blood supply tissues and organs, but for a long time there has been a lack of instruments that can flexibly control blood flow in blood vessels according to actual needs. In traditional research, medical research People usually block the blood flow by ligating the surgical thread or injecting embolic agents. Both of the above two methods have serious shortcomings: surgical thread ligation can only achieve the purpose of completely blocking blood vessels, and the effects of different degrees of ischemia on tissues and organs cannot be observed; while the way of injecting embolic agents, it is difficult to control the embolization of blood vessels. The degree of ische...

AI Technical Summary

Problems solved by technology

[0002] In medical research, it is often necessary to observe the effects of different degrees of ischemia on the function of its blood supply tissue and organs, but for a long time there has been a lack of instruments that can flexibly control blood flow in blood vessels according to actual needs. In traditional research, medical research Patients usually block blood flow through surgical thread ligation or injection of embolism

Both of the above two methods have serious shortcomings: surgical thread ligation can only achieve the purpose of completely blocking blood vessels, and cannot observe the impact of different degrees of ischemia on tissues and organs; and the way of injecting embolic agents is difficult to control the blockage of embolic agents on blood vessels degree, which also makes the degree of ischemia difficult to control

Therefore, the current research on the effects of different degrees of ischemia on tissues and organs generally adopts the method of complete blockage, that is, the method of completely cutting off the blood flow. observation

Moreover, the blockage of blood flow by these methods is irreversible, and it is difficult to observe the functional changes of tissues and organs after blood flow reperfusion

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