Source: https://patents.justia.com/patent/5112330
Timestamp: 2019-10-21 16:08:34
Document Index: 454222858

Matched Legal Cases: ['arts 626', 'art 622', 'arts 626', 'art 607', 'art 642', 'arts 702', 'art 206', 'art 206', 'art 203', 'art 702', 'art 206', 'art 206', 'arts 703', 'arts 102', 'arts 702', 'art 642', 'arts 703', 'arts 702']

US Patent for Resectoscope apparatus Patent (Patent # 5,112,330 issued May 12, 1992) - Justia Patents Search
Justia Patents EndoscopicUS Patent for Resectoscope apparatus Patent (Patent # 5,112,330)
May 23, 1989 - Olympus
The great feature of this embodiment is that, as the tip parts 626a and 626b of the insulating tubes 625a and 625b are made small in the diameter and have an angle .theta. with the shaft part 622a, as shown in FIG. 55, the tip parts 626a and 626b will be able to come deep into the clearance between the optical sighting tube 404 and the inside diameter of the insertable part 607 of the sheath 402, the loop 622c will be able to be made larger and a larger tissue piece will be able to be resected in one operation. In case the insulating tubes 625a and 625b are small in the diameter over the entire length, the wall thicknesses of the insulating tubes 625a and 625b will reduce and therefore the insulation will reduce. On the contrary, in case they are formed to be large in the diameter over the entire length, the length of the loop 622c will become short and the resecting capacity will reduce. The other formations, operations and effects are the same as in the seventh embodiments.
The electrode part 642 comprises shaft parts 702a and 702b as holding parts inserted through guide pipes 243 secured on both lower sides of the tip of a guide tube 225, extended parallelly to a slider part 206 along the guide tube 225 and bent downward at right angles with the guide tube 225 within the slider part 206, a cord part 203 connected electrically and mechanically to the rear end of the shaft part 702b within the slider part 206 and extended to the outside of the slider part 206, parallel parts 703a and 703b provided on the tip sides of the shaft parts 102a and 102b and projected upward and forward at a small angle .theta. with the shaft parts 702a and 702b from the guide pipes 243 in case the electrode part 642 is retracted into the body 207 and a loop 704 connecting these parallel parts 703a and 703b at both tips, set substantially at right angles with the shaft parts 702a and 702b, bent downward and forming an arcuate loop.
3973568 August 10, 1976 Iglesias
2419131 DEX
54-33394 March 1979 JPX
57-190542 November 1982 JPX
60-104111 July 1985 JPX
61-180001 November 1986 JPX
Patent number: 5112330
Application Number: 7/355,740
Current U.S. Class: Endoscopic (606/46); 128/4