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Unobstructing Microdevices for Self-Clearing Implantable Catheters

Technology Benefits

Compatible with a wide range of catheter pore sizesLow cost per device fabricatedDurable; initial testing showed that microactuators subjected to over 250 million cycles of actuation did not experience any significant change in its mechanical property

Technology Application

Integrate into existing implantable catheters to alleviate flow obstruction

Detailed Technology Description

Dr. Jack Judy and colleagues in the Department of Bioengineering at UCLA have developed an unobstructing microdevice for self-clearing catheters that alleviates flow obstruction. The researchers designed micro-mechanical mechanisms to disrupt the accumulation of biological material and keep catheter pores clear of debris. This device may be directly integrated into commercially available catheter systems for use in existing surgical techniques (e.g. chronically implanted catheters). The technology holds great promise in actively managing the long-term cellular occlusion problems of conventional catheters.

Supplementary Information

Patent Number: US20110313340A1
Application Number: US13164587A
Inventor: Judy, Jack W. | Lee, Hyowon | Bergsneider, Marvin
Priority Date: 18 Jun 2010
Priority Number: US20110313340A1
Application Date: 20 Jun 2011
Publication Date: 22 Dec 2011
IPC Current: A61M000100
US Class: 604008
Assignee Applicant: The Regents of the University of California
Title: UNOBSTRUCTING MICRODEVICES FOR SELF-CLEARING IMPLANTABLE CATHETERS
Usefulness: UNOBSTRUCTING MICRODEVICES FOR SELF-CLEARING IMPLANTABLE CATHETERS
Summary: Cantilever-based magnetic microactuator for self-clearing a flow pore in a human implant i.e. self-clearing ventricular catheter (claimed), utilized for a surgeon to treat a hydrocephalus patient.
Novelty: Cantilever-based magnetic microactuator for self-clearing flow pore in ventricular catheter utilized for surgeon to treat hydrocephalus patient, has actuator plate comprising magnet responsive to magnetic field

Industry

Biomedical

Sub Group

Medical Implant

Application No.

9604039

Others

Background

Implanted medical catheters are now an integral part of clinical care. However, many chronically implanted catheter systems are plagued with reduced performance as a result of prolonged accumulation of biological debris. For the neurological disorder hydrocephalus, obstruction of the shunt tubing that diverts cerebrospinal fluid (CSF) from the brain is one of the most commonly occurring complications and can lead to serious injury to the patient. Catheter obstruction therefore mandates frequent monitoring of a patient’s condition and eventual catheter replacement.

Tech ID/UC Case

23507/2010-175-0

Related Cases

2010-175-0

Country/Region

USA

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