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:
Jan. 23, 1996
Filed:
Apr. 12, 1994
William H Hollister, Nelson, NH (US);
Smiths Industries Medical Systems, Inc., Keene, NH (US);
Abstract
A blood collection assembly is disclosed in which the tube holder to which the contaminated end of a blood collection cannula is inserted. To prevent any contaminated blood from being exposed to the user, or bystanders, an elastic pierceable sheath is fixedly aligned within the tube holder so that the tip and at least a portion of the cannula, when fully inserted to the tube holder, are enveloped within the sheath. Any blood dripped from the cannula is therefore retained within the sheath. To obtain samples of blood for testing, a VACUTAINER tube is inserted to the opposite end of the tube holder. The rubber stopper at the top of the VACUTAINER, upon insertion, would slidably push the closed end of the sheath toward the tip of the cannula so that the former is pierced by the latter. Thereafter, the rubber stopper of the VACUTAINER tube is likewise pierced by the cannula so that a fluid communication path is effected between the inside of the VACUTAINER tube and the blood collection bag to which the blood collection cannula is connected. Internal locking means within the tube holder provides fixed retention of the cannula within the sheath and the tube holder so that the cannula would remain in place within the tube holder.