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Renal artery blockage and cold infusion device for laparoscopic surgeries

A renal artery and surgery technology, applied in the field of clinical medical surgery, can solve the problems of poor cooling effect, high cost, complicated operation, etc., and achieve the effect of reducing blood loss and ensuring protection.

Inactive Publication Date: 2013-02-06
沈瑞林
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although both have certain effects, the cooling effect of the former two is poor, and the operation of the latter is complicated and expensive

Method used

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  • Renal artery blockage and cold infusion device for laparoscopic surgeries

Examples

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Comparison scheme
Effect test

Embodiment 1

[0017] Example 1: Renal artery occlusion and cold perfusion system used in animal experiments

[0018] After the experimental pigs were anesthetized, they were placed in the supine position, and a laparoscope was placed next to the umbilical cord at a place about 2-3 cm above the umbilical level as Trocar A. Trocar B was selected to be 7-10 cm above Trocar A, and hole B was used to block the renal artery during the operation. Trocar C is located on the same vertical line as Trocar B, and the three form an equilateral triangle. After successful puncture, the renal artery occlusion cold perfusion experiment was performed under the pneumoperitoneum pressure of 13-15 mmHg. Find the kidney, incise the peritoneum and perirenal fascia longitudinally slightly outside the hilus, separate it toward the renal pedicle, and see the renal artery and vein. After separating a small amount of fat, the renal artery will be fully freed. Pull out Trocar A, insert the renal artery occlusion and ...

Embodiment 2

[0019] Example 2: Renal artery occlusion and cold perfusion system used in human partial nephrectomy

[0020] After general anesthesia, take the left decubitus position (90 degrees), sterilize and spread a towel, insert a Trocar A on the right side of the navel and place a laparoscope, and inflate the abdominal cavity with a pneumoperitoneum pressure of 13-15 mmHg. Trocar B was placed under the right costal margin of the anterior axillary line, Trocar C was placed 2 cm above the medial anterior superior iliac spine, and Trocar D was placed slightly above Trocar A at the posterior axillary line. Find the kidney, incise the peritoneum and perirenal fascia longitudinally slightly outside the hilum, separate it toward the renal pedicle, separate the tissue around the renal artery with an ultrasonic knife, and fully free the renal artery. The diameter of the renal artery is about 3 mm, and the length of the main trunk is about 3 cm. Find the tumor and fully free the surrounding tis...

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Abstract

The invention discloses a renal artery blockage and cold infusion device for laparoscopic surgeries, which comprises a renal artery blockage clip, wherein the renal artery blockage clip is integrated with a renal artery puncture needle, is connected with an infusion tube capable of simultaneously and continuously infusing normal saline or kidney protection fluid of 0 to 4 DEG C to the kidney, and is an ordinary 4cm bent vascular clamp which is widely used for blocking renal arteries in partial nephrectomy at present; the renal artery puncture needle is similar to a vascular sclerosis needle, and consists of a needle core and a sheath; the renal artery blockage clip and the renal artery puncture needle are fixedly connected with each other to be integrated; and the renal artery puncture needle is fixed to the middle part of the front half of the renal artery blockage clip vertically and at 60 degrees to a horizontal direction. The renal artery blockage and cold infusion device has the characteristics of rational design, simple structure, material cost saving, simple operation, capability of effectively reducing haemorrhage in the surgeries, protecting renal function, remarkably prolonging renal blockage time (longer than 1 hour) in the surgeries without damaging the renal function, greatly reducing the risk of laparoscopic partial nephrectomy, extensively developing the laparoscopic partial nephrectomy, and the like.

Description

technical field [0001] The invention relates to a laparoscopic nephrectomy and cold perfusion system and its application in laparoscopic partial nephrectomy, belonging to the technical field of clinical medicine and surgery. Background technique [0002] Partial nephrectomy has developed rapidly in recent years and is mainly used for benign tumors such as renal cancer with tumor diameter less than 3cm, solitary renal tumor, bilateral renal tumor, renal hamartoma, segmental renal vascular malformation, and duplication of renal malformation with drainage. Unsmooth, localized renal injury with hemorrhage and urine extravasation, multiple stones confined to the upper or lower pole of the kidney, and other diseases, the operation is more difficult, the main difficulty lies in the control of bleeding during operation, the treatment of renal incision and the However, the concept of preserving renal function has been affirmed by domestic and international urology circles, so this op...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/122A61B17/00
Inventor 沈瑞林
Owner 沈瑞林
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