A blood flow blocking stent for preventing blood vessel adhesion

Abstract

The invention discloses a blood flow blocking support for preventing vascular adhesion. The blood flow blocking support comprises an internal sleeve (1) and an internal blocking plug (2), wherein theinternal blocking plug (2) is arranged in the internal sleeve (1). The internal sleeve (1) is a silica gel hose, the internal sleeve (1) is provided with a crack (3), and the crack (3) is arranged inthe length extending direction of the internal sleeve (1). The internal sleeve (1) sleeves a front-section outer lantern ring (4) and a rear-section outer lantern ring (5), the front-section outer lantern ring (4) and the rear-section outer lantern ring (5) are arranged in a spaced mode, the front-section outer lantern ring (4) is in a ring shape formed through butt joint of two semi-circular ring, the front-section outer lantern ring (4) is externally sleeved with a semi-circular-ring-shaped front-section elastic lantern ring (6), the rear-section outer lantern ring (5) is in a ring shape formed through butt joint of two semi-circular ring, and the rear-section outer lantern ring (5) is externally sleeved with a semi-circular-ring-shaped rear-section elastic lantern ring (7). In the technical scheme, blood is blocked through the blood flow blocking support so as to obtain a clear operation view, and the blood flow blocking support is simple in structure and good in blocking effect.

Description

technical field [0001] The invention relates to a blood flow blocking stent for preventing blood vessel adhesion, which belongs to the field of medical devices. Background technique [0002] The heart is the most important organ in the body of vertebrates. Its main function is to provide pressure for blood flow and to move blood to all parts of the body. The role of the heart is to promote blood flow, provide sufficient blood flow to organs and tissues to supply oxygen and various nutrients, and take away metabolic end products (such as carbon dioxide, inorganic salts, urea and uric acid, etc.), so that cells can maintain Normal metabolism and function. In heart and great vessel surgery, it is often necessary to block a certain section of blood vessel, so that the adjacent blood vessels at the blocked part can be opened for surgical operation. The existing blocking method mainly uses aortic clamp to block. However, heart and great vessel surgery often requires a long oper...

AI Technical Summary

Problems solved by technology

However, heart and large vessel surgery often requires a long operation time. If the aorta is clamped with aortic clamp to block the blood flow, the inner wall of the blood vessel will adhere to the time course.

Therefore, during the operation, the aortic clamp should be loosened according to the specified time interval. When the aortic clamp is loosened, blood will flow out of the aorta, which will increase the blood loss during the operation and increase the risk of the operation.

Moreover, after the aortic clamp is released, a large amount of blood will flow into the surgical field to block the surgical field. At this time, a blood-sucking operation is required, which is cumbersome, prolongs the operation time, and further increases the operation risk.

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