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Developing and validating an implantable suture tension sensor.

F P J den Hartog¹, Y Yurtkap¹, J Vlot²

¹Department of Surgery, ErasmusMC, University Medical Center, Rotterdam, the Netherlands.

|April 25, 2024

Summary

This summary is machine-generated.

Researchers developed a cost-effective implantable sensor to measure suture tension in real-time during abdominal wall closure. This device aims to optimize tension, preventing complications like surgical site infections and incisional hernias.

Keywords:

Biomedical sensor Incisional hernia Laparotomy Suture tension

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Area of Science:

Biomedical Engineering
Surgical Innovation
Medical Device Development

Background:

Suture tension critically impacts sutured tissues, especially in abdominal wall closure.
Suboptimal tension can lead to tissue necrosis, surgical site infections, and incisional hernias.

Purpose of the Study:

To evaluate a novel, cost-effective device for in-situ, real-time measurement of suture tension.

Main Methods:

Developed an implantable suture tension sensor using a force sensing resistor and an analog-to-digital converter.
Designed and 3D-printed a sensor probe housing.
Validated the sensor using a computer-controlled abdominal wall model (AbdoMAN).

Main Results:

The sensor translates suture tension into force on the resistor.
A formula correlating sensor readout to force was derived using calibration weights.
Preliminary validation showed the sensor detecting increased suture tension with rising intra-abdominal pressure in the AbdoMAN model.

Conclusions:

The implantable suture tension sensor shows capability for real-time tension recording.
Initiated validation process for the developed sensor.
This technology can enhance understanding of incisional hernia development.