A small lumen stapler

Abstract

Disclosed are a small lumen anastomat and a use method therefor, wherein same aim at solving the technical problem of anastomosis of an arterial blood vessel and a human body small lumen. The small lumen anastomat structurally comprises: a fixed sleeve (100), a movable sleeve (200) and a lock catch (400), wherein one end of the fixed sleeve (100) is provided with a sleeve shoulder, and the other end of the fixed sleeve (100) is provided with an anastomosis connecting end; the movable sleeve (200) is sleeved on a sleeve wall of the fixed sleeve (100), and is provided with hanging needles (230, 260), and the movable sleeve (200) has the degree of freedom of movement of sliding in a lengthwise direction of the fixed sleeve (100); the length of the movable sleeve (200) satisfies the condition where when the end of the movable sleeve close to the sleeve shoulder is attached to the sleeve shoulder, the anastomosis connecting end is exposed relative to an end face of the other end of the movable sleeve (200); the lock catch (400) is made of an elastic material, has an annular contour and is provided with a locking part, and the shape of an inner hole of the lock catch (400) matches the contour of the anastomosis connecting end; and a sleeve wall face of the fixed sleeve (100) is provided with at least one recessed portion in an inner cavity direction, and the contour of a sleeve cavity of the movable sleeve (200) matches the contour of an outer wall of the fixed sleeve (100). The device can improve the success rate of a surgery and enable the surgery to be safer.

Description

technical field [0001] The invention relates to the technical field of blood vessel and human small lumen anastomosis, in particular to a small lumen stapler. Background technique [0002] Human lumen anastomosis is a surgical technique that connects two broken lumens of the human body into one. Vascular suture anastomosis is a vascular anastomosis method that uses sutures to butt and suture the broken ends of blood vessels. Although it is the "gold" standard of vascular anastomosis, it also has the following defects: 1. The suture causes damage to the intima of the vessel; 2. The suture is exposed to the lumen and interferes with the normal blood flow; 3. The anastomotic stoma is turned inward, etc. , increasing the risk of vascular embolism. 4. The operation is cumbersome and the operation time is long; 5. The doctor's skill requirements are high, and it is difficult to master it proficiently in a short period of time without training. 6. The quality of the operation is...

AI Technical Summary

Problems solved by technology

Vascular suture anastomosis is a vascular anastomosis method that uses sutures to butt and suture the broken ends of blood vessels. Although it is the "gold" standard of vascular anastomosis, it also has the following defects: 1. The suture causes damage to the intima of the vessel; 2. The suture is exposed to the lumen and interferes with the normal blood flow; 3. The anastomotic stoma is turned inward, etc. , increased risk of vascular embolism

4. The operation is cumbersome and the operation time is long; 5. The doctor's skills are required to be high, and it is difficult to master them proficiently in a short period of time without training

6. The quality of surgery is easily affected by the doctor's psychological and physiological fluctuations; 7. Blood vessels are elastic, soft, and stretchable human tissues, so it is difficult to position them by manual suture, and it is difficult to suture accurately with needles

Although the application of vascular mechanical nail-loop anastomosis obviously simplifies the operation and shortens the operation time, it also has the following disadvantages: figure 1 As shown, the inner diameters of the two plastic rings must be the same, so blood vessels with different diameters cannot be anastomosed

Causes doctors to feel inconvenient and flexible to operate

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