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:
Jun. 09, 1987
Filed:
Oct. 16, 1985
William R Dubrul, Santa Barbara, CA (US);
Charles J Heyler, III, Thousand Oaks, CA (US);
McGhan Medical Corporation, Santa Barbara, CA (US);
Abstract
A tissue expander, of the type containing within the interior of its expandable shell an injection reservoir self-sealing to punctures by a hypodermic needle, is disclosed. The tissue expander includes a reinforcing member or insert which is substantially more rigid than the expandable shell, is larger than the injection reservoir, and is mounted to the expandable shell with its center substantially at the apex of the shell and substantially superimposed with the center of injection reservoir. The reinforcing member substantially prevents folding of the expandable shell over the injection reservoir and thereby substantially prevents inadvertent puncture of the expandable shell by a needle which is directed into the injection reservoir. Magnetically detectable material is mounted into the injection reservoir to enable an externally applied magnet locator to find the injection reservoir when the entire tissue expander assembly is temporarily implanted in a patient.