[54] SYSTEM FOR EVULSING SUBCUTANEOUS TISSUE
[75] Inventors: Ryoichi Konou, Hachioji; Ryoji Masubnchi, Hamura; Jin Kira, Sagarnihara; Takabiro Kogasaka; Hiroshi Okabe. both of Hachioji, all of Japan
[73] Assignee: Olympus Optical Co., Ltd.. Tokyo. Japan
[21] Appl. No.: 676,856
[22] Filed: Jul. 3,1996
[30] Foreign Application Priority Data
M. 7, 1995 [JP] Japan 7-172140
Jul. 7, 1995 [JP] Japan 7-172342
Jul. 7, 1995 [JP] Japan 7-172467
Sep. 29, 1995 [JP] Japan 7-253310
Feb. 19, 1996 [JP] Japan 8-030424
Feb. 20, 1996 [JP] Japan 8-031690
Jun. 26, 1996 [JP] Japan 8-166063
[51] Int CI.6 A61B 1/04
[52] U.S. CI 600/114; 606/190; 606/191;
606/192; 606/159; 606/167
[58] Field of Search 600/104. 114;
606/1. 119, 151. 190, 191, 192. 193, 194. 195, 196, 197, 198, 199, 200. 205. 142, 143. 159. 157. 158, 174; 604/96, 95. 97
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A system for evulsing subcutaneous tissue includes an endoscope adapted to be inserted into subcutaneous tissue through a skin cut portion to observe tissue to be evulsed and existing under the skin, a dissecting unit adapted to be inserted into the subcutaneous tissue through the skin cut portion so as to dissect the tissue, to be evulsed, from surrounding tissue in order to form a cavity along the tissue to be evulsed and below the skin, a cavity maintaining unit adapted to be inserted from the skin cut portion into the cavity formed by the dissecting unit and to be retained in the cavity in order to maintain, around the tissue to be evulsed, a treatment space which permits the endoscope to be inserted and removed and which enables treatment of the tissue to be evulsed, and at least one treatment tool adapted to be inserted into the treatment space maintained by the cavity maintaining unit in order to perform, in the treatment space, treatment required to evulse the tissue to be evulsed.
14 Claims, 64 Drawing Sheets
