Surgical knife safety handle having user operable lock

Details Surgical knife safety handle having user operable lock Surgical knife safety handle having user operable lock

2011-03-22

2011-03-22

Ho, (Jackie) Tan-Uyen T (Department: 3773)

Surgery

Instruments

Cutting, puncturing or piercing

Reexamination Certificate

active

07909840

ABSTRACT:
A surgical knife safety device having a handle, a blade connected to the handle, and a guard carried by the handle for sliding movement between a retracted position in which the blade is exposed for use, and an extended position for covering the sharp cutting edge of the blade. In the retracted position, an enlarged guard radius is provided at the distal end of the handle to allow improved handle control and blade orientation. The enlarged guard radius is positioned to allow the user to firmly grip a large distal handle portion which is preferably molded as a single piece with the blade holder, preventing unwanted blade or handle movement due to guard mechanism tolerances. A spring, such as leaf spring or a cantilever beam, and a pair of detents or slots are provided to fix the guard in the extended or retracted position and to provide resistance during movement between the two positions. Additionally, a pushback prevention mechanism, a user operable lock and a drop-force operable lock are provided to prevent accidental retraction of the guard from the fully extended and guarded position.

REFERENCES:
patent: 1195169 (1916-08-01), Adcock
patent: 1914153 (1933-06-01), Ogden
patent: 2304332 (1942-12-01), Bodkin
patent: 2512237 (1950-06-01), Mravik
patent: 2885780 (1959-05-01), Campbell
patent: 3383763 (1968-05-01), Strandfors
patent: 3706106 (1972-12-01), Leopoldi
patent: 3905101 (1975-09-01), Shepherd
patent: 3906626 (1975-09-01), Riuli
patent: 3943627 (1976-03-01), Stanley, Jr.
patent: 3967377 (1976-07-01), Wells
patent: 4091537 (1978-05-01), Stevenson, Jr.
patent: 4375218 (1983-03-01), DiGeronimo
patent: 4393587 (1983-07-01), Kloosterman
patent: 4414974 (1983-11-01), Dotson et al.
patent: 4491132 (1985-01-01), Aikins
patent: 4499898 (1985-02-01), Knepshield et al.
patent: 4500220 (1985-02-01), Hashimoto
patent: 4516575 (1985-05-01), Gerhard et al.
patent: 4523379 (1985-06-01), Osterhout et al.
patent: 4538356 (1985-09-01), Knepshield et al.
patent: 4576164 (1986-03-01), Richeson
patent: D283544 (1986-04-01), Schmidt et al.
patent: 4630378 (1986-12-01), Kulp et al.
patent: 4660287 (1987-04-01), Decker
patent: 4662075 (1987-05-01), Mastel et al.
patent: 4719915 (1988-01-01), Porat et al.
patent: 4735202 (1988-04-01), Williams
patent: 4757612 (1988-07-01), Peyrot
patent: 4815218 (1989-03-01), Gordy
patent: 4823457 (1989-04-01), Prochaska
patent: 4825545 (1989-05-01), Chase et al.
patent: 4826339 (1989-05-01), Sasaki
patent: 4910821 (1990-03-01), Kieferle
patent: 4958625 (1990-09-01), Bates et al.
patent: 4985034 (1991-01-01), Lipton
patent: 5015252 (1991-05-01), Jones
patent: 5035703 (1991-07-01), Baskas
patent: 5071426 (1991-12-01), Dolgin et al.
patent: 5139507 (1992-08-01), Dolgin et al.
patent: 5203865 (1993-04-01), Siepser
patent: 5207696 (1993-05-01), Matwijcow
patent: 5222951 (1993-06-01), Abidin et al.
patent: 5250063 (1993-10-01), Abidin et al.
patent: 5254128 (1993-10-01), Mesa
patent: 5275606 (1994-01-01), Abidin et al.
patent: 5292329 (1994-03-01), Werner
patent: 5299357 (1994-04-01), Wonderley et al.
patent: 5309641 (1994-05-01), Wonderley et al.
patent: 5312429 (1994-05-01), Noack
patent: 5330492 (1994-07-01), Haugen
patent: 5330493 (1994-07-01), Haining
patent: 5336235 (1994-08-01), Myers
patent: 5344424 (1994-09-01), Roberts et al.
patent: 5352220 (1994-10-01), Abidin et al.
patent: 5361902 (1994-11-01), Abidin et al.
patent: 5370654 (1994-12-01), Abidin et al.
patent: 5411512 (1995-05-01), Abidin et al.
patent: 5417704 (1995-05-01), Wonderley
patent: 5431672 (1995-07-01), Cote et al.
patent: 5433321 (1995-07-01), Abidin et al.
patent: 5475925 (1995-12-01), Newman et al.
patent: 5496340 (1996-03-01), Abidin et al.
patent: 5507762 (1996-04-01), Abidin et al.
patent: 5528811 (1996-06-01), Abidin et al.
patent: 5545175 (1996-08-01), Abidin et al.
patent: 5569281 (1996-10-01), Abidin et al.
patent: 5577850 (1996-11-01), Mishima
patent: 5620454 (1997-04-01), Pierce et al.
patent: 5662221 (1997-09-01), Abidin et al.
patent: 5662669 (1997-09-01), Abidin et al.
patent: 5664668 (1997-09-01), Zainal et al.
patent: 5665099 (1997-09-01), Pilo et al.
patent: D386526 (1997-11-01), Ito
patent: 5683407 (1997-11-01), Jolly et al.
patent: 5727682 (1998-03-01), Abidin et al.
patent: 5741289 (1998-04-01), Jolly et al.
patent: 5749886 (1998-05-01), Abidin et al.
patent: 5752968 (1998-05-01), Jolly et al.
patent: 5792162 (1998-08-01), Jolly et al.
patent: 5827309 (1998-10-01), Jolly et al.
patent: 5908432 (1999-06-01), Pan
patent: 5919201 (1999-07-01), Carter et al.
patent: 5924206 (1999-07-01), Cote et al.
patent: D421303 (2000-02-01), Cote et al.
patent: 6065889 (2000-05-01), Maruyama et al.
patent: 6089775 (2000-07-01), Yokouchi
patent: 6112420 (2000-09-01), Schickerling
patent: 6391041 (2002-05-01), Edens
patent: D463555 (2002-09-01), Etter et al.
patent: D465279 (2002-11-01), Etter et al.
patent: D466214 (2002-11-01), Otsuka
patent: 6503262 (2003-01-01), Edens
patent: D470938 (2003-02-01), Howell et al.
patent: 6569175 (2003-05-01), Robinson
patent: 6626925 (2003-09-01), Newman et al.
patent: 6629985 (2003-10-01), Kiehne
patent: D496730 (2004-09-01), Morawski et al.
patent: 6854187 (2005-02-01), Huan
patent: D504513 (2005-04-01), Morawski et al.
patent: 6884240 (2005-04-01), Dykes
patent: 7022128 (2006-04-01), Morawski et al.
patent: 7055248 (2006-06-01), Cote
patent: D533944 (2006-12-01), Sullivan et al.
patent: 7150754 (2006-12-01), Ziemer
patent: D537528 (2007-02-01), Christensen et al.
patent: D571010 (2008-06-01), Cote
patent: 7387637 (2008-06-01), Morawski et al.
patent: 2002/0065532 (2002-05-01), Harrold et al.
patent: 2002/0143352 (2002-10-01), Newman et al.
patent: 2004/0215174 (2004-10-01), Morawski et al.
patent: 2005/0015104 (2005-01-01), Morawski et al.
patent: 2005/0119680 (2005-06-01), Dykes
patent: 3722899 (1989-01-01), None
patent: 0 162 170 (1985-11-01), None
patent: 0 555 196 (1993-08-01), None
patent: 0 653 190 (1995-05-01), None
patent: 0 701 798 (1996-03-01), None
patent: 244896 (1995-04-01), None
patent: WO 93/11916 (1993-06-01), None
patent: WO 93/21837 (1993-11-01), None
patent: WO 97/37599 (1997-10-01), None
patent: WO 01/05312 (2001-01-01), None
patent: WO 03/099145 (2003-12-01), None
Oasis Medical Inc., “Oasis Premier Shield Safety Scalpels”, Oasis Product Catalog, 2006, Glendora California.

Affiliated with

Also associated with

Rating

Surgical knife safety handle having user operable lock does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Surgical knife safety handle having user operable lock, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Surgical knife safety handle having user operable lock will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2736043