The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 14, 1995
Filed:
Apr. 15, 1994
Robert W King, Lexington, MA (US);
Hewlett-Packard Company, Palo Alto, CA (US);
Abstract
A shaft for an invasive bodily probe which includes a central core, a metal sheath surrounding the core and an outer elastomeric coating. A membrane formed of a textile layer disposed between two layers of a flexible, tough film is disposed between the sheath and the outer elastomeric coating. The membrane typically is formed of a woven material whose interstices have been completely filled by two layers of a urethane material. The membrane completely seals the sheath and core to protect the patient from electrical currents carried by wires within the core, and to prevent bacteria and fluids from being trapped in cuts in the shaft. The wires are also protected from damage from bodily fluids and cleaning solutions, since the core is sealed from the environment. A method for preparation of such a shaft includes the formation of a laminate comprised of a layer of a textile encapsulated between two layers of a flexible film, formation of a tube of this laminate, and the sliding of the tube over the existing core and sheath. Adhesive may be used to bond the membrane to the outer elastomeric coating.