Patent · US Expired

Device for the production of a cold treatment-gas for cryotherapy

US4841969A · kind A · utility

5Cited by

5References

4Claims

0Family size

Assignee

Messer Griesheim GmbH · DE

Inventors

Andreas Donnerhack · Krefeld, DE
Kurt P. Schneider · Nettetal, DE

Key dates

Filing date	Jun 1, 1987
Grant date	Jun 27, 1989
Priority date	—
Expiry date	Jun 1, 2007

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S220/901
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A device for producing cyrotherapy with liquid nitrogen includes a container for the liquid nitrogen with electrical heating in its interior. The container has a maximum volume of 50 l and the electrical heating is a heating element comprising a self-regulating strip heater secured in the interior of the container.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.