Blood vessel anastomat and application method thereof

Abstract

The invention discloses a blood vessel anastomat and an application method thereof. The convenience of the vascular anastomosis surgical operation is improved, and the technical risk of vascular tearing in the surgery is lowered. The blood vessel anastomat structurally comprises a fixed sleeve, a movable sleeve and a lock catch; a limit shoulder is arranged at one end of the fixed sleeve, and an anastomosis connection end is arranged at the other end of the fixed sleeve; the movable sleeve sleeves the sleeve wall of the fixed sleeve, and a hanging needle is arranged at the end away from the limit shoulder; an inner hole of the movable sleeve is matched with the cylinder wall of the fixed sleeve in a key and groove mode, and only has the motion degree of freedom of sliding in the axial direction of the fixed sleeve; the lock catch is made of an elastic material, is in an annular shape, and is provided with a locking part, and the shape of an inner hole of the lock catch is matched withthat of the anastomosis connection end. By adopting the blood vessel anastomat, the convenience of the vascular anastomosis surgical operation can be improved, the time of the vascular anastomosis surgery is reduced, the surgical risk can be reduced, and the surgical success rate is improved, so that the surgery is safer.

Description

technical field [0001] The invention relates to the technical field of blood vessel anastomosis, in particular to a blood vessel stapler and a use method thereof. Background technique [0002] Vascular anastomosis is a surgical technique that connects two blood vessels into one. Vascular anastomosis technology began more than one hundred years ago with the application of manual sutures such as Carrel, A, (1908) and Hopfnet, E, (1903) for vascular grafting and replantation of amputated limbs. After more than one hundred years of development, this The technology has been widely used in various surgical procedures. For example, in many fields such as plastic surgery, hepatobiliary surgery, cardiothoracic surgery, urology, obstetrics and gynecology, vascular anastomosis technology is required. Vascular anastomosis is one of the most important steps in the above-mentioned operation, and its success or failure is directly related to whether the tissue in the operation can surviv...

AI Technical Summary

Problems solved by technology

For the vascular suture anastomosis method, although it is the "gold" standard of vascular anastomosis, it still has the following technical defects: 1. The suture will cause damage to the intima of the vessel; 2. The exposure of the suture in the lumen will interfere with the normal flow of blood ;3. Operations such as inversion of the anastomotic stoma will increase the risk of vascular embolism; 4. The operation is cumbersome and the operation time is long; 5. The personal ability of the doctor is high, and it is difficult to master the essentials of the operation without training in a short period of time; 6. .Surgical quality is easily affected by the doctor's psychological and physiological fluctuations; 7. Blood vessels are elastic, soft, and stretchable human tissues. 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-and-loop anastomosis can greatly simplify the operation steps and shorten the operation time, there are still the following technical disadvantages: In actual operation, many blood vessels to be connected have obvious differences in diameter. In the mechanical nail-ring anastomosis method, the inner diameters of the two plastic rings must be consistent, which cannot meet the anastomosis requirements when the diameters of the vessel sections are different; when the vessel wall is hung on a small needle, each section of the vessel to be connected needs to undergo Six times of large-distance pulling can complete the fixation operation, which makes the operation more difficult and inconvenient in actual operation, and improper operation can easily cause accidental tearing of blood vessels, and even lead to the failure of the operation in severe cases

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