‘ US005685821A I ‘ United States Patent [191 [11] Patent Number: 5,685,821 Pike [45] Date of Patent: Nov. 11, 1997 [54] METHOD AND APPARATUS FOR 5,022,332 6/1991 0118116316131. ........................... .. 123/4 PERFORMING ENDOSCOPIC SURGICAL 5,152,746 10/1992 3116356116131. ....................... .. 604/33 5,195,960 3/1993 HOSSalIl 6131.. PROCEDURES 5,213,571 5/1993 116163131. ............................. .. 604/31 [75] Inventor: Harold Levon Pike. Castle Rock, C010. 5,254,037 10/1993 McEwen ................................. .. 604/66 5,267,956 12/1993 Beuchat. 5,269,239 12/1993 Takehana et a1. ........................ .. 123/4 [73] Assignee: Arthrotek, Warsaw, Ind. 5,313,936 5/1994 Miyazaki et 31.. 5,391,144 2/1995 Sakurai a =11. ............................ .. 123/6 [21] Appl. No.: 659,773 FOREIGN PATENT DOCUMENTS [22] Filed: May 6,1996 3400253 1/1986 WLPO. Related US. Application Data 3500233 3/1936 WLPO. 9200303 6/1992 wn>o. [63] Continuation of Ser. No. 963,448, Oct. 19, 1992, abandoned. OTHER PUBLICATIONS [51] 1m. (:1.6 ................................................... .. A611; 1/015 Dolk, et a1.. ‘Three Irrigation Systems for Motorized Arthro [52] U8. c1. ................ .. 600/113; 600/156; 604/35 scopic Surggery: A Comparative Experimental and Clinical [58] Field of Search .......................... .. 604/30-35, 65-67; Study". The Journal of Arthroscopic and Related Surgery, 600/118, 156-159 vol. 5, N0. 4. 1989. Dolk, et al., “Elevated Position of Suction Out?ow During [56] References Cited Arthroscopic Motorized Surgery: An Experimental Study”. The Journal of Arthroscopic and Related Surgery. vol. 5. No. U.S. PATENT DOCUMENTS 4, 1989. 3,900,022 8/1975 Widran. Dolk, et al., “Elevated Position of the Irrigation Out?ow 4,007,742 2/1977 Banko. During Arthroscopy: An Experimental Study”, The Journal 4,180,074 12/1979 Murry et a1. . of Arthroscopic and Related Surgery. v01. 5. No. 2, 1989. 4,203,444 5/1980 Bonnell et a1. . 4,261,360 4/1981 Perez , Primary Examiner-Mark Bockelman 4,343,300 8/1982 Hatto? ...................................... .. 128/6 Attorney, Agent, or Firm-Harness. Dickey & Pierce. P.L.C. 4,349,014 9/1982 Takamatsu ................................ .. 128/6 4,423,727 l/1984 Widran et a1. . [57] ABSTRACT 4,493,694 1/1985 Wuchinich. 4,493,695 1/1985 Cook. An apparatus for performing endoscopic surgical procedures 4,604,089 8/1986 Santangelo et a1. . within an internal body cavity. The apparatus includes an 4,650,462 3/1987 DeSatnick et a1. . imaging unit for viewing the internal body cavity. In 4,662,871 5/1987 Rafelson. addition, the apparatus includes an intra-articular unit for 4,671,792 6/1987 Borsanyi . providing a ?ow of ?uid into the internal body cavity as well 4,750,902 6/1988 Wuchinich et a1. . as for controllably withdrawing ?uid from the internal body 4,795,424 111989 Burner . 4,798,580 1/1989 DeMeo et a1. . cavity. The apparatus further includes a cart which allows 4,862,872 9/1989 Yabe et a1. ................................ .. 128/6 electrical intercommunication between the imaging unit and 4,9(R,277 2/1990 Mathies et a1. . the intra-articular unit whereby the operation of the imaging 4,920,413 4/1990 Nakamura et a1. ....................... .. 128/6 unit and the intra-articular unit are interdependent. 4,947,245 8/1990 Ogawaetal. 128/6 4,996,975 3/1991 Nakamura ................................. .. 128/6 20 Claims, 12 Drawing Sheets 5,000,733 3/1991 Mathies et a]. . US. Patent Nov. 11,1997 Sheet 1 of 12 5,685,821 IO / 246 SUPPLY 240 22| 238 40 5,685,821 US. Patent Nov. 11, 1997 Sheet 2 0f 12 /26 ‘\I ‘11.- MJ —24 ill D "LU ‘7 '=' 58 §mr.:::| ‘HI 22 E1 ‘M1, "11' 62 16O US. Patent 5,685,821 Nov. 11, 1997 Sheet 3 of 12 3O 36 / j wM .©(©w“©®.@w/1 1 llllllllllll :2Mw5. 9 3“ /,11.M - - /i WH/H.J4.// ===Z=.==Z //,H / lllllllIllll . 4 US. Patent Nov. 11, 1997 Sheet 7 of 12 5,685,821 US. Patent Nov. 11, 1997 Sheet 8 of 12 5,685,821 0mm 1,48 US. Patent Nov. 11, 1997 Sheet 9 of 12 5,685,821 mm NNN
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