A small lumen anastomat and a method for using the same

Abstract

The invention discloses a small lumen anastomat and a method for using the same, in order to solve the technical problem of arterial blood vessel and human body small lumen anastomosis. The structurecomprises a fixed sleeve, a movable sleeve and a locking buckle. One end of the fixed sleeve is provided with a cylinder shoulder. The other end of the fixed sleeve is provided with an anastomosis connection end. The movable sleeve sleeves the cylinder wall of the fixed sleeve and provided with a hanging needle, and the movable sleeve has the freedom of movement sliding along the length directionof the fixed sleeve. When the length of the movable sleeve meets the requirement that one end close to the cylinder shoulder is in contact with the cylinder shoulder, the anastomotic connection end isexposed relative to the end face of the other end of the movable sleeve. The locking buckle is made of elastic material and has an annular shape and is provided with a locking part. The inner hole shape of the locking buckle is matched with the shape of the anastomotic connection end. The anastomat is characterized in that the cylinder wall of the fixed sleeve is provided with at least one recessin the direction of the inner cavity, and the outer shape of the cylinder cavity of the movable sleeve is adapted to the outer shape of the fixed sleeve. The anastomat can improve the success rate ofthe operation and make the operation more safe.

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 and a use method thereof. 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 qu...

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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