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Laparoscopic-Assisted Seldinger Technique for Peritoneal Dialysis Catheter Insertion

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A computer assisted method for guide-wore and catheter evaluation.

A Patriciu¹, D Mazilu, D Petrisor

¹Johns Hopkins Medical Institutions, Johns Hopkins University, Baltimore, Maryland 21224

Conference Proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual Conference

|February 7, 2007

Summary

We created a new testing method to measure forces from guide wires and catheters on tissues during urological procedures. This simulation accurately reflects real-world stress, improving device safety and performance evaluation.

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Area of Science:

Biomedical Engineering
Urological Device Testing
Medical Simulation

Background:

Guide wires and catheters can cause tissue stress during urological procedures.
Prior methods assessed device properties (stiffness, friction) but didn't quantify tissue impact.
Individual physical properties do not fully represent device ensemble behavior.

Purpose of the Study:

To develop a novel testing method for evaluating forces exerted by guide wires and catheters on anatomical structures.
To provide a realistic simulation of the urological environment for device assessment.
To bridge the gap between device physical properties and their actual effect on tissues.

Main Methods:

Utilized a computer-controlled test stand to simulate the urological environment.
Incorporated a tortuous path and a simulated stone obstruction into the model.
Developed a method to realistically evaluate forces applied to anatomical structures.

Main Results:

The developed method shows significant promise in evaluating device performance.
Results align with real-life measures of stress on anatomical structures.
The simulation accurately reflects wire/catheter performance in a realistic context.

Conclusions:

The new testing method provides a realistic evaluation of forces from urological instruments.
The model's modularity allows adaptation for simulating other medical fields.
This approach enhances the assessment of device safety and efficacy in urology.