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[Air pressure vascular clamp. Experimental study and clinical application]
1Hospital of Combination of Chinese Traditional and Western Medicine, Jilin.
Zhonghua Wai Ke Za Zhi [Chinese Journal of Surgery]
|April 1, 1992
Summary
A novel air pressure vascular clamp minimizes vascular injury during surgery. This adjustable clamp, suitable for various vessel sizes, improves blood flow obstruction control and enhances vascular anastomosis success rates.
Area of Science:
- Vascular Surgery
- Biomedical Engineering
- Surgical Devices
Background:
- Vascular clamps are essential in surgery but can cause vessel damage.
- Existing clamps may lack adjustability for different vessel types and compression durations.
- Minimizing iatrogenic injury is crucial for successful vascular anastomosis.
Purpose of the Study:
- To design and evaluate a novel air pressure vascular clamp for surgical use.
- To compare the efficacy and safety of the air pressure clamp against conventional clamps.
- To assess the impact of the clamp on vascular injury and anastomosis outcomes.
Main Methods:
- An air pressure vascular clamp was designed and tested.
- Comparative study on 90 rats involving femoral artery injury and anastomosis.
- Assessment of vascular injury using operating, light, and electron microscopy.
- Clinical application in 43 patients with 119 vascular anastomoses.
Main Results:
- The air pressure clamp demonstrated the least number and degree of vascular injuries.
- Clamp pressure is adjustable to occlude blood flow, accommodating various vessel calibers.
- Successful clinical outcomes in 119 vascular anastomoses across 43 patients.
Conclusions:
- The air pressure vascular clamp offers a safer alternative, reducing surgical trauma.
- Adjustable pressure and suitability for diverse vessel sizes enhance surgical precision.
- This clamp is expected to increase unobstructed vascular anastomosis rates, particularly in challenging cases.