Title:
METHODS FOR MANUFACTURING A CLIP AND CLIP
Document Type and Number:
WIPO Patent Application WO2004060169
Kind Code:
A3
Abstract:
The present invention relates to a method of making clips which can be used to engage body tissue for the purpose of closing wounds. Such clips are generally annular in shape and have radially inwardly extending tines. The present invention first forms a precursor which, in one embodiment, has the tines extending radially outwardly from the annular body and then forms the clip by inverting the precursor such that the tines extend radially inwardly. In an alternate embodiment, the precursor is formed with an over-sized lateral dimension and then compressed inwardly to bring the tines closer together and to reduce the lateral dimension of the precursor. It is preferred to manufacture such clips from a superelastic alloy such as nickel-titanium, in which case the inverted or compressed precursor must be heated and quenched to heat set the clip in its final shape.
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Inventors:
CARLEY MICHAEL T
GINN RICHARD S
GINN RICHARD S
Application Number:
PCT/US2003/040812
Publication Date:
September 10, 2004
Filing Date:
December 17, 2003
Export Citation:
Assignee:
INTEGRATED VASCULAR SYS INC (US)
International Classes:
A61B17/00; A61B17/064; A61B17/068; A61B17/08; H03K3/356; A61B19/00; (IPC1-7): A61B17/00; A61B17/064
Domestic Patent References:
| WO2000056227A1 | 2000-09-28 |
Foreign References:
| US20020188318A1 | 2002-12-12 | |||
| US20020082641A1 | 2002-06-27 | |||
| FR2722975A1 | 1996-02-02 | |||
| US4665906A | 1987-05-19 |
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