Laparoscopic surgical instrument and laparoscopic surgery device

Abstract

The invention provides a laparoscopic surgical instrument and a laparoscopic surgery device. The laparoscopic surgical instrument comprises a blood vessel blocking structure and a blood vessel puncture structure, the laparoscopic surgical instrument is clamped to a blood vessel through the blood vessel blocking structure so that the blood vessel near the clamped portion can deform, a puncture assembly is made to move so that the puncture assembly can puncture the blood vessel in the long-axis direction of one section of the deformed blood vessel, and therefore the blood vessel puncture successrate is increased. In addition, the laparoscopic surgery device can combine the laparoscopic surgical instrument with a cooling module and is used for performing cold perfusion operation on the punctured blood vessel in the laparoscopic surgery, and the laparoscopic surgical instrument has the effects of being high in cooling efficiency and uniform in cooling effect.

Description

Technical field [0001] The embodiments of the present application relate to a medical device, in particular to a laparoscopic surgical instrument and a laparoscopic surgical equipment. Background technique [0002] The technological progress of laparoscopic surgery has led to new developments in laparoscopic partial nephrectomy. However, the surgical requirements are high. When removing tumors and suturing wounds, a vascular blocking clip is needed to temporarily block the renal artery, reduce blood loss, provide a clear surgical field, and reopen the arterial blood flow after the operation is completed. This surgical step puts the kidney in a warm ischemic state, which seriously affects renal function. Therefore, the resection of the tumor and the suture of the wound must be completed in a limited time. Studies have found that lowering kidney temperature can effectively reduce renal metabolic rate, reduce the negative effects of ischemia, and provide longer operation time on th...

AI Technical Summary

Problems solved by technology

[0003] Aiming at the above-mentioned kidney warm ischemia problem, Chinese Patent No. CN201510553456.5 provides a kidney cooling bag, which cools the kidney by contacting the bag with the surface of the kidney, but the cooling efficiency of this solution is low

[0004] In addition, Chinese Patent No. CN201010239955.4 provides a renal artery occlusion and cold perfusion device, which fixes the renal artery puncture needle on the renal artery occlusion clamp, and lowers the temperature of the kidney by perfusing cooling liquid. The achievable cooling efficiency is relatively high. However, since the renal artery puncture needle provided in this case is fixed vertically and horizontally at 60° in the middle of the front half of the renal artery blocking clip, the puncture needle and blocking clip are integrated. The formed overall circumferential dimension is relatively large, which is likely to cause difficulty in entering the Trocar channel as a whole; in addition, when the blood vessel is flattened, the cross section of the nearby blood vessel will take on an elliptical shape due to the flattening, and also due to the puncture needle It is vertical and vertical, fixed on the renal artery blocking clamp at 60° horizontally, so that the puncture needle tends to puncture the clamped blood vessel in the direction of the short axis of the oval cross-section, and the puncture stroke is short, so it is easy to cause the blood vessel to be blocked. The risk of puncture is also high for abnormal puncture, so doctors often need to make adjustments during the operation, such as flipping blood vessels, to avoid the occurrence of the above abnormalities, resulting in inconvenient and difficult operations

In addition, since the head of the puncture needle is a rigid hollow needle, other mechanical injuries are likely to be caused by the operation of the renal artery blocking clip during the operation.

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