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. 22, 1999
Filed:
Jan. 13, 1997
Jeremy Marshall, Oxford, GB;
David Danvers Crossman, Oxford, GB;
Owen Mumford Limited, Oxford, GB;
Abstract
A lancet has a needle (2) embedded in a plastics body (1), its tip (3) projecting from the forward end but being initially encased in a cap (4). This cap (4) may be integrally moulded with the body, around the needle tip (3), and be sheared away before use. The needle (2) can be pushed back in relation to the body (1) after use, conveniently by applying the cap (4) to the tip (3), until the tip is safely flush with, or set back with respect to the leading end of the body (1). The rear end of the body (1) has a structure (9) to prevent the rear end of the needle (2) being pushed forwards again. To ensure that the tip disappears, the body (1) may be formed with an intermediate, resiliently flexible bridge (19) stiff enough to remain rigid during pricking. But when the needle (2) is forced back and pressure is also applied to the part of the body forward of the bridge (19), the needle (2) and that forward part move back with respect to the rear part of the body. Then the forward part is released to move forwards, sprung by the bridge (19), leaving the needle held by the rear part.