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Newly designed occluder pin for presacral hemorrhage
V M Stolfi1, J W Milsom, I C Lavery
1Cleveland Clinic Foundation, Ohio.
Diseases of the Colon and Rectum
|February 1, 1992
Summary
A novel ridged hemorrhage occluder pin effectively controls presacral venous bleeding during rectal surgery. This new surgical pin design requires greater extraction force than smooth pins, demonstrating its improved efficacy and safety in clinical use.
Area of Science:
- Surgical Innovation
- Biomedical Engineering
- Anatomical Studies
Background:
- Presacral venous bleeding during rectal surgery poses significant hemostatic challenges.
- Conventional methods for controlling this bleeding are often inadequate.
Purpose of the Study:
- To develop and evaluate a new hemorrhage occluder pin for managing presacral venous bleeding.
- To determine optimal pin shaft length based on sacral vertebral body thickness.
- To compare the retention strength of the new pin against conventional devices.
Main Methods:
- Cadaveric pelvis dissection and sacral vertebral body thickness measurement.
- Computerized dynamometry to measure pin extraction forces.
- Clinical assessment of the new pin's efficacy in patients.
Main Results:
- Significantly higher extraction forces were required for ridged pins compared to smooth pins.
- Pin shaft length (12mm vs. 7mm) did not significantly affect extraction force.
- The new pin was successfully used in three patients to control hemorrhage without complications.
Conclusions:
- The newly designed hemorrhage occluder pin with a ridged shaft offers improved control of presacral venous bleeding.
- This device represents a potentially superior method for managing surgical hemorrhage in this anatomical region.