Thrombectomy catheter deployment system

US7935077B2 · kind B2 · utility

Assignee

• MEDRAD, Inc. · US

Inventors

• Eric J. Thor · Arden Hills, US
• Michael J. Bonnette · Minneapolis, US
• Nicole Jaye Aasen · Minneapolis, US
• Martyn Stuart Abbott · Dallas, US
• Douglas J. Ball · Blaine, US
• Walter Charles Croll · Maplewood, US
• David C. Cummings · Crouse, US
• Chad Nicholas Grant · San Diego, US
• Mark A. Hilse · Ham Lake, US
• James Fredrick Karpinski · Blaine, US
• Daniel Joseph Kneip · Anna, US
• Jeffrey William Rogers · Plano, US
• Ernest Ralph Scherger, III · Center City, US
• John L. Teschendorf · Lino Lakes, US
• Stephen E. Weisel · Montrose, US
• David W. West · Richardson, US

Key dates

• Filing date: Sep 28, 2005
• Grant date: May 3, 2011
• Expiry date: Jun 6, 2028

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61M2205/6018
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A thrombectomy catheter deployment system which greatly simplifies setup procedures and operation of a thrombectomy catheter includes a stand alone drive unit and a disposable pump/catheter assembly which is manually placed into a carriage assembly in the drive unit. The pump/catheter assembly has a plurality of preconnected components including tubular structure and a thrombectomy catheter connected thereto and is transported into or out of the interior of the drive unit for automatic high pressure pump piston head engagement or disengagement with a reciprocating linear actuator and for automatic engagement or disengagement of an effluent waste tube with a roller pump. A barcode reader senses specific operational data pertaining to an individual pump and provides an interface for operation of the reciprocating linear actuator. A bubble trap incorporated for effective debubbling of saline solution is closely coupled to an insert molded pump having an improved valve arrangement. A spiked bag with large tubing is incorporated for bubble-free transfer of saline.