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A miniature suture tensiometer for laparoscopic applications.

¹Department of Surgical Research and Development, Ethicon Endo-Surgery, Inc., Cincinnati, Ohio, USA. Jcumming@eesus.jnj.com

Journal of Investigative Surgery : the Official Journal of the Academy of Surgical Research

|November 9, 2000

Summary

A new miniature suture tensiometer accurately measures suture tension in open and laparoscopic surgery. This data aids in developing devices for secure knot tying during minimally invasive procedures.

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Area of Science:

Surgical instrumentation
Minimally invasive surgery
Biomedical engineering

Background:

Suture tension is critical for surgical performance.
Accurate suture tensioning is challenging in laparoscopic surgery due to space constraints and instrument mechanics.
Existing methods for judging suture tension in laparoscopy are often imprecise.

Purpose of the Study:

To develop and validate a miniature suture tensiometer for use in both open and laparoscopic procedures.
To assess the accuracy and range of the developed tensiometer.
To utilize measured suture tension data for improving laparoscopic knot-tying devices.

Main Methods:

Development of a miniature suture tensiometer.
Testing the tensiometer's accuracy over a 2-lb range.

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Application of the tensiometer during laparoscopic surgery to collect real-time suture tension data.

Main Results:

The miniature suture tensiometer demonstrated a maximum error of 0.05 lb over a 2-lb range.
The device was successfully employed in laparoscopic surgery to measure suture tension.
Collected tension data informed the design of a novel laparoscopic knot-tying device.

Conclusions:

The developed miniature suture tensiometer provides accurate suture tension measurements in various surgical settings.
This technology enables objective assessment of suture tension, overcoming limitations of laparoscopic procedures.
The findings contribute to the development of more reliable and secure knot-tying solutions for laparoscopic surgery.