Surgical instrument
| Title: | Surgical instrument |
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| Patent Number: | 7,404,822 |
| Publication Date: | July 29, 2008 |
| Appl. No: | 10/494050 |
| Application Filed: | October 23, 2002 |
| Abstract: | A surgical instrument includes: grip handles (2, 3) which are articulated to each other around a fulcrum pin (4) so that the jaws can be moved from an open position to a closed position; and connecting elements (5) which can be used to: (i) lock the handles (2, 3) in a determined, constant position when a first force is exerted on the handles; and (ii) unlock the handles (2, 3) when a second force is exerted on same. |
| Inventors: | Viart, Guy (Saint-Leger, FR); Leroy, Eric (Saint Nicolas les Arras, FR); Leroy, Jean-Yves (Campagne les Hesdin, FR); Pommier, Arnaud (Raimbeaucourt, FR) |
| Assignees: | Orthotec, LLC (Beverly Hills, CA, US) |
| Claim: | 1. Surgical instrument comprising handles (2 , 3) articulated about a pivotal axis (4) for moving jaws, from an open position to a closed position, comprising connection means (5) which permit on the one hand, under a first pressure on the handles (2 , 3) locking the handles in a predetermined and constant position, and on the other hand, under the influence of a second pressure on said handles (2 , 3) unlocking the handles wherein an open recess (12) is provided to pass through from side to side of a thickness of the second handle (3) such that a hooking region of a catch (13), which is constituted by at least one tooth (14), is directed in a direction of a hook (9) secured to the first handle (2), and wherein the connection means (5) are constituted on the first handle (2) by an ear (6) permitting securement of the hook (9), and on the second handle (3), by the open recess (12) in which is secured the catch (13). |
| Claim: | 2. Surgical instrument according to claim 1 , wherein the hook (9) comprises a hooking portion (10) and a resilient return portion which is constituted by a spring (11) to place said hook (9) in a same and single position when the handles are in the unlocked position. |
| Claim: | 3. Surgical instrument according to claim 1 , wherein the ear (6) is pierced by a hole (7) to receive an axle (8) permitting the securement of the hook (9) on the first handle (2). |
| Claim: | 4. Surgical instrument according to claim 3 , wherein the catch (13) comprises the at least one tooth (14) formed by a hollow which is delimited by a first inclined surface (15) forming an access ramp within said tooth, and by another inclined surface (16) constituting an access ramp from said tooth. |
| Claim: | 5. Surgical instrument according to claim 4 , wherein a thickness of the catch (13) is formed by a surface (17) with a curved profile connecting the inclined surfaces (15 and 16). |
| Claim: | 6. Surgical instrument according to claim 4 , wherein the inclined surfaces (15 , 16) are positioned in separate and parallel planes so as to facilitate sliding of a hooking portion (10) of the hook (9). |
| Claim: | 7. Surgical instrument according to claim 2 , wherein the catch (13) is positioned and fixed within the opening recess (12) such that a bottom of a recess of the at least one tooth (14) is located within said recess (12) at a same level as a securement axle (8) of the hook (9) on the first handle (2). |
| Current U.S. Class: | 606/208 |
| Patent References Cited: | 2544197 March 1951 Vosbikian et al. 2652832 September 1953 Castroviejo 4462404 July 1984 Schwarz 4722339 February 1988 Dreier et al. 4961742 October 1990 Torre 5104397 April 1992 Santangelo et al. 5314424 May 1994 Nicholas 5425743 June 1995 Nicholas 5653729 August 1997 Chappuis et al. 5730740 March 1998 Wales et al. 5752960 May 1998 Nallakrishnan 6139563 October 2000 Cosgrove et al. 6202517 March 2001 Dolan 6446344 September 2002 Gontar 198 41 249 May 2000 0 392 548 October 1990 |
| Assistant Examiner: | Mendoza, Michael G. |
| Primary Examiner: | Hayes, Michael J. |
| Attorney, Agent or Firm: | Blakely Sokoloff Taylor & Zafman |
| Accession Number: | edspgr.07404822 |
| Database: | USPTO Patent Grants |
| Language: | English |
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