Powered variable seal diameter trocar employing a winepress mechanism

US00802564lB2

(12) Ul1l1€(l States P2116111 (10) Patent No.: US 8,025,641 B2 Bettuchi (45) Date of Patent: Sep. 27, 2011 (54) POWERED VARIABLE SEAL DIAMETER 5.197.955 A * 3/1993 $t_<?Ph@I1$ TROCAR EMPLOYINGAWINEPRESS 2 §;;:<f§“a1 ~~~~~~~~~~~~~~~~~~~~~~~~ ~~ 351/7 MECHANISM 5:304:143 A 4/1994 Green et 41. 5,308,336 A 5/1994 Hart et al. (75) Inventor: Michael Bettuchi, Middletown, CT (US) 5,334,164 A * 8/1994 Guy et al. ................... .. 604/248 5,342,315 A 8/1994 Rowe (73) Assignee: Tyco Healthcare Group LP, New 5,350,364 A * 9/1994 Stephens et al. ....... .. 604/167.06 5,366,445 A 11/1994 Haber Haven’ CT (US) 5 385 552 A 1/1995 Haber ( * ) Notice" Subject to any disclaimer the term of t1iis Q gm ~ 1 , , astro patent is extended or adjusted under 35 5,391,153 A 2/1995 Haber U_S_C_ 154(b) by 0 dayS_ 5,391,154 A 2/1995 Young 5,397,314 A 3/1995 Farley (21) Appl. No.: 12/957,573 (Continued) (22) Filed; ])e¢_ 1, 2010 OTHER PUBLICATIONS _ _ _ European Search Report EP 08 25 1792 dated Sep. 1, 2008. (65) Prior Publication Data Us 2011/0152777 A1 11111. 23, 2011 (eemmued) Related U.S. Application Data ZBeiC)?l:Vl”ZeI:£r*ib(I21fl1;;if_sI\I]1)1L{“ItIC€/131651 (60) Provisional application No. 61/287,813, filed on Dec. 18, 2009. (57) ABSTRACT (51) Int‘ Cl‘ surgical ‘access apparatus includespan access member~having a longitudinal passageway providing access to a tissue A61B 17/34 (2006.01) . _ / _ / _ site. An elongated seal member mounted to the access mem(52) U.S. Cl. ....... .. 604/167.03, 604 167.01, 604 167.04, ber has an erifiee with a Variable inner dimension The e1en_ (58) F_ Id f Cl $104/t2_5e gated seal member establishes a sealing relation about an le 0 aSSl Ca loll ' t t d ' ' t d d t t Search ........ 604/164.014164.04,164.07, 164.12, $f,§§f,f§m :3,,;j,:f,i;‘;1i,§,,;§;,,,,i,,1j,?,;V§§,i,,,1,3,§1,S,‘;‘f,§‘, 604/165~04> 167~01’167~03> 256> 264$ orifice. The powered adjustment mechanism includes trailing _ _ 251/149_"1*149"3> 4 and leading hubs longitudinally spaced and adapted for relaSee apphcanon file for Complete Search h15tOry~ tive rotation about an axis defined by the access member. A _ plurality of spokes extends between the hubs and defines first (56) Referenees Clted and second minimum internal dimensions when in first and

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U.S. Patent Sep. 27,2011 Sheet 2 0f3 US 8,025,641 B2