Retainer arrangement and method for applying a membrane to a physiological sensing unit

US4359054A · kind A · utility

Assignee

• Hellige GmbH · DE

Inventors

• Helmut Leist · Freiburg im Breisgau, DE
• Karl-Heinz Pomorin · Stegen, DE

Key dates

• Filing date: Jun 22, 1981
• Grant date: Nov 16, 1982
• Expiry date: Jun 22, 2001

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B5/1477
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

Disclosed herein are a method and a retainer arrangement for applying a membrane to a physiological sensing unit for the transcutaneous determination of the magnitude of physiological quantities, particularly for measuring the partial pressure of gases in blood or the like. The invention proposes the preparation of a preassembly thus constituting a spare part which will be ready for application to the sensing unit when needed. The preassembly comprises a membrane, a clamping ring for removably assembling the membrane with the sensing unit, and means, including an auxiliary retainer element, for temporarily and removably securing the membrane to the clamping ring prior to assembly with the sensing unit.