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Maintenance of a Lateral Fluid Percussion Injury Device

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The LPD-II: a modified locked percutaneous device that permits safe subcutaneous access.

C Yu¹, G D Harris

¹Department of Pediatrics, East Carolina University Brody School of Medicine, Greenville, North Carolina, USA.

ASAIO Journal (American Society for Artificial Internal Organs : 1992)

|February 24, 2001

Summary

The modified locked percutaneous device (LPD-II) allows implantation without subcutaneous tissue. Adding a skin stop collar (SSC) may improve success rates for this new percutaneous device.

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Area of Science:

Biomedical Engineering
Surgical Devices
Percutaneous Implants

Background:

The original locked percutaneous device (LPD-I) required significant subcutaneous adipose tissue for successful implantation.
Skin downgrowth and local infection were common issues with the LPD-I.
A modified device, LPD-II, was developed to address these limitations.

Purpose of the Study:

To evaluate the efficacy of the modified LPD-II, with and without a novel skin stop collar (SSC).
To determine if the LPD-II can be implanted without relying on subcutaneous adipose tissue.
To assess the impact of the SSC on the success rate of LPD-II implantation.

Main Methods:

A comparative study involving two groups of rabbits implanted with LPD-II.
Group 1: LPD-II without SSC (n=6).
Group 2: LPD-II with SSC (n=5).
Implant success and complications were monitored for over 6 months to 1 year.

Main Results:

LPD-II without SSC showed a success rate of 33% (2/6) over 6 months.
LPD-II with SSC demonstrated a higher success rate of 80% (4/5) over 1 year.
One unrelated death occurred in the SSC group.

Conclusions:

The LPD-II's mesh collar skin connector functions effectively as a locked percutaneous device without a subcutaneous tissue connector.
LPD-II offers greater implantation site flexibility, not requiring subcutaneous adipose tissue.
The SSC shows potential to increase LPD-II implantation success, especially with a soft mesh collar material.