Metal deforming – By tool-couple embodying nonplanar tool-face – Similar tool-faces
Reexamination Certificate
2001-06-20
2002-11-19
Crane, Daniel C. (Department: 3725)
Metal deforming
By tool-couple embodying nonplanar tool-face
Similar tool-faces
C029S282000
Reexamination Certificate
active
06481262
ABSTRACT:
SUMMARY OF THE INVENTION
The present invention provides a stent crimping device that may be used by the physician or other medical personnel to securely crimp a stent onto a balloon catheter prior to an interventional procedure. One object of the present invention is to provide circular stepped crimps at each end of the stent and along predetermined locations along the length of the stent. The number of intermediate circular stepped crimps can vary depending on the length of the stent. The circular stepped crimps provide points of high frictional resistence which significantly reduce the possibility that the stent will slip off of the catheter balloon when being delivered for an interventional procedure. Another object of the invention is to provide a simple hand-held crimping device that may be used on-site with a variety stents and delivery catheters thus obviating the need to stock a large inventory of pre-crimped stent/catheter devices.
In one embodiment of the present invention, the stent crimping device is made of a pair of sliding plates each having a number of raised, narrow ribs. The plates are oriented so that the narrow ribs face each other in a mutually opposed relationship. A stent bearing catheter may be placed between the opposing ribs such that the longitudinal axis of the stent is perpendicular to that of the ribs. Upon receipt of the stent bearing catheter, the sliding plates are pressed together and moved relative to one another thereby allowing the ribs to create the stepped circular crimps on the stent.
In a second embodiment, the stent crimping device includes an upper member having a number of downward facing concave semicircular crimping sectors and a lower member having a number of upward facing concave semicircular crimping sectors. The upper and lower members are oriented in a housing such that the upward and downward facing crimping sectors are mutually opposed to each other. In use, a stent bearing catheter is placed between the upper and lower members and the members are pressed together with a controlled degree of force to cause the crimping sectors to engage and form the semicircular stepped crimps on the stent.
While the embodiments described here are intended for use as hand-held devices, as will be apparent to those skilled in the art, the concept of a stepped circular crimp, whether it be rolled into a stent with straight ribs or impressed with semicircular sectors, may be readily adapted to high volume production machinery as well.
These and other advantages of the present invention will become more apparent from the following detailed description thereof when taken in conjunction with the following drawings.
REFERENCES:
patent: 141992 (1873-08-01), Carr
patent: 579214 (1897-03-01), Adams
patent: 696289 (1902-03-01), Williams
patent: 852290 (1907-04-01), Neal
patent: 915184 (1909-03-01), Keirn
patent: 1045886 (1912-12-01), Reay
patent: 1051777 (1913-01-01), Mars
patent: 1230561 (1917-06-01), Chige
patent: 1268171 (1918-06-01), Spaulding
patent: 1758261 (1930-05-01), Leland
patent: 1966593 (1934-01-01), O'Russa
patent: 2419678 (1947-04-01), Duenas et al.
patent: 2452857 (1948-11-01), Mesaros
patent: 2465433 (1949-03-01), Doniger
patent: 2553479 (1951-05-01), Schrmarge et al.
patent: 3496684 (1970-02-01), Banning et al.
patent: 3898897 (1975-08-01), Jauhianinen
patent: 4016738 (1977-04-01), Puchko
patent: 4047420 (1977-09-01), Edwards
patent: 4107964 (1978-08-01), Smith
patent: 4215871 (1980-08-01), Hirsch et al.
patent: 4468224 (1984-08-01), Enzmann et al.
patent: 4576142 (1986-03-01), Schiff
patent: 4644936 (1987-02-01), Schiff
patent: 4681092 (1987-07-01), Cho et al.
patent: 4697573 (1987-10-01), Schiff
patent: 4901707 (1990-02-01), Schiff
patent: 4907336 (1990-03-01), Gianturco
patent: 4987722 (1991-01-01), Koebbeman
patent: 5132066 (1992-07-01), Charlesworth et al.
patent: 5133732 (1992-07-01), Wiktor
patent: 5183085 (1993-02-01), Timmermans
patent: 5189786 (1993-03-01), Ishikawa et al.
patent: 5195539 (1993-03-01), Dryud et al.
patent: 5209143 (1993-05-01), Sweet
patent: 5217434 (1993-06-01), Arney
patent: 5353623 (1994-10-01), Bobenhausen
patent: 5377400 (1995-01-01), Homm
patent: 5437083 (1995-08-01), Williams et al.
patent: 5456667 (1995-10-01), Ham et al.
patent: 5458615 (1995-10-01), Klemm et al.
patent: 5476505 (1995-12-01), Limon
patent: 5540124 (1996-07-01), Srhoj
patent: 5546646 (1996-08-01), Williams et al.
patent: 5626604 (1997-05-01), Cottone, Jr.
patent: 5630830 (1997-05-01), Verbeek
patent: 5653691 (1997-08-01), Rupp et al.
patent: 5672169 (1997-09-01), Verbeek
patent: 5695515 (1997-12-01), Orejola
patent: 5715723 (1998-02-01), Owens
patent: 5725519 (1998-03-01), Penner et al.
patent: 5738674 (1998-04-01), Williams et al.
patent: 5746764 (1998-05-01), Green et al.
patent: 5768935 (1998-06-01), Owens
patent: 5783227 (1998-07-01), Dunham
patent: 5785715 (1998-07-01), Schatz
patent: 5787572 (1998-08-01), Toms
patent: 5795289 (1998-08-01), Wyttenbach
patent: 5810838 (1998-09-01), Solar
patent: 5810873 (1998-09-01), Morales
patent: 5836952 (1998-11-01), Davis et al.
patent: 5860966 (1999-01-01), Tower
patent: 5893852 (1999-04-01), Morales
patent: 5893867 (1999-04-01), Bagaoisan et al.
patent: 5911452 (1999-06-01), Yan
patent: 5920975 (1999-07-01), Morales
patent: 5938696 (1999-08-01), Goicoechea et al.
patent: 5951540 (1999-09-01), Verbeek
patent: 5972016 (1999-10-01), Morales
patent: 5974652 (1999-11-01), Kimes et al.
patent: 6009614 (2000-01-01), Morales
patent: 6024737 (2000-02-01), Morales
patent: 6063102 (2000-05-01), Morales
patent: 6074381 (2000-06-01), Dinh
patent: 6082990 (2000-07-01), Jackson et al.
patent: 6092273 (2000-07-01), Villareal
patent: 6125523 (2000-10-01), Brown
patent: 2211694 (1998-02-01), None
patent: 297 14 857 (1997-10-01), None
patent: 0 303 889 (1989-02-01), None
patent: 0 303 889 (1989-02-01), None
patent: 0 562 478 (1993-09-01), None
patent: 0 630 623 (1994-12-01), None
patent: 0 630 623 (1994-12-01), None
patent: 0 826 346 (1998-03-01), None
patent: 0 873 731 (1998-10-01), None
patent: 0 938 880 (1999-09-01), None
patent: WO 01/21076 (2001-03-01), None
patent: 975 797 (1951-03-01), None
patent: 159065 (1921-02-01), None
patent: 2 088 811 (1982-06-01), None
patent: 127831 (1989-06-01), None
patent: 1488086 (1989-06-01), None
patent: WO 97/09946 (1997-03-01), None
patent: WO 98/14120 (1998-04-01), None
patent: WO 98/19633 (1998-05-01), None
C. R. Bard Brochure, The Extraordinary Stent (Undated).
Ching Denise
Stack Richard S.
Advanced Cardiovascular Systems Inc.
Crane Daniel C.
Fulwider Patton Lee & Utecht LLP
LandOfFree
Stent crimping tool does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Stent crimping tool, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Stent crimping tool will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2984059