Measuring and testing – Specimen stress or strain – or testing by stress or strain... – By loading of specimen
Patent
1998-02-18
1999-06-29
Noori, Max H.
Measuring and testing
Specimen stress or strain, or testing by stress or strain...
By loading of specimen
73833, G01N 310
Patent
active
059182849
ABSTRACT:
A semi-automated machine for singulating individual surgical needles from an bulk supply and attaching a suture to the surgical needle is described. Each of the surgical needles has a suture receiving opening formed therein for receiving a suture. The machine includes a needle singulation station, a precise positioning station, a suture feeding station, a swage station, a pull-test station and an off-load station. A universal gripper mounted on a rotary indexing device automatically receives each individual needle in a predetermined orientation and conveys the needle for sequential processing from station to station to form the needle-suture assembly. A swage station is provided for swaging the needle to close the suture receiving opening about the suture to secure said suture thereto and form therefrom a needle and suture assembly. The suture pull-test station tests each needle suture bond with a pre-determined pull for quality control. This pull is adjustable via a precision spring tension device. The pull test station includes two sets of jaws for gripping the suture, the first for the quality control pull test, and the second for a destructive test in which the strength of the bond is measured for adjusting the swage dies and for statistical quality control purposes. A final off-load station provides an apparatus for assembling a predetermined number of need-suture assemblies in a bundle for subsequent packaging.
REFERENCES:
patent: 2736194 (1956-02-01), Dilts
patent: 2782635 (1957-02-01), Knight
patent: 4475404 (1984-10-01), Rutledge, Jr. et al.
patent: 4722384 (1988-02-01), Matsutani
patent: 4924709 (1990-05-01), Plyter
patent: 5131533 (1992-07-01), Alpern
patent: 5438746 (1995-08-01), Demarest et al.
patent: 5473810 (1995-12-01), Demarest et al.
patent: 5485668 (1996-01-01), Demarest et al.
patent: 5487308 (1996-01-01), Demarest et al.
patent: 5500991 (1996-03-01), Demarest et al.
patent: 5608962 (1997-03-01), Colligan et al.
patent: 5844142 (1998-12-01), Blanch et al.
Blanch John F.
Demarest David D.
Esteves Anthony
Ethicon Inc.
Noori Max H.
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