Tissue retractor for use through a cannula

Details Tissue retractor for use through a cannula Tissue retractor for use through a cannula

1997-08-29

1999-12-28

Leubecker, John P.

Surgery

Specula

Retractor

600210, 600204, A61B 1313

Patent

active

060074876

ABSTRACT:
Devices and methods for performing percutaneous spinal surgery under direct visualization and through a single cannula are shown. A device (10) is provided which includes an elongated cannula (20) having a first inner diameter (D.sub.I) and an outer diameter (D.sub.O) sized for percutaneous introduction into a patient. The cannula (20) defines a working channel (25) between its ends (21, 22) which has a second diameter (D.sub.2) equal to the diameter (D.sub.I) of the cannula sized for receiving a tool therethrough. An elongated viewing element (50) is engageable to the cannula (20) adjacent the working channel (25), preferably by a fixture (30). The fixture (30) includes a housing (31) attachable to the proximal end (22) of the cannula (20) that defines a working channel opening (35) which is in communication with the working channel (25). The housing (31) also defines an optics bore (60) adjacent the working channel opening (35). In certain embodiments, the fixture (30) supports the viewing element (50) for translation and/or rotation within the optics bore (60) along the longitudinal axis of the bore, and for rotation of the housing (31) relative to the cannula (20) so that the longitudinal axis of the optics bore (60) will rotate about the longitudinal axis of the working channel (25). Methods are also provided for performing spinal surgeries percutaneously with direct visualization and without the requirement for a fluid-maintained workspace.

REFERENCES:
patent: 465161 (1891-12-01), Chase
patent: 2235979 (1941-03-01), Brown
patent: 2255657 (1941-09-01), Freedman
patent: 2482116 (1949-09-01), Lanahan
patent: 2575253 (1951-11-01), Bicek
patent: 2666428 (1954-01-01), Glenner
patent: 2756742 (1956-07-01), Barton
patent: 2829649 (1958-04-01), Glenner
patent: 2886004 (1959-05-01), Morrison
patent: 3486505 (1969-12-01), Morrison
patent: 3570498 (1971-03-01), Weighton
patent: 3626471 (1971-12-01), Florin
patent: 3651800 (1972-03-01), Wilbanks
patent: 3941127 (1976-03-01), Froning
patent: 3964480 (1976-06-01), Froning
patent: 4049000 (1977-09-01), Williams
patent: 4232660 (1980-11-01), Coles
patent: 4344419 (1982-08-01), Burgin
patent: 4350151 (1982-09-01), Scott
patent: 4461281 (1984-07-01), Carson
patent: 4498902 (1985-02-01), Ash et al.
patent: 4545374 (1985-10-01), Jacobson
patent: 4562832 (1986-01-01), Wilder et al.
patent: 4573448 (1986-03-01), Kambin
patent: 4586491 (1986-05-01), Carpenter
patent: 4638799 (1987-01-01), Moore
patent: 4655216 (1987-04-01), Tischer
patent: 4674501 (1987-06-01), Greenberg
patent: 4678459 (1987-07-01), Onik et al.
patent: 4700694 (1987-10-01), Shishido
patent: 4736738 (1988-04-01), Lipovsek et al.
patent: 4750475 (1988-06-01), Yoshihashi
patent: 4750487 (1988-06-01), Zanetti
patent: 4762120 (1988-08-01), Hussein
patent: 4875897 (1989-10-01), Lee
patent: 4899729 (1990-02-01), Gill et al.
patent: 4905082 (1990-02-01), Nishigaki et al.
patent: 4947896 (1990-08-01), Bartlett
patent: 4972827 (1990-11-01), Kishi et al.
patent: 5004457 (1991-04-01), Wyatt et al.
patent: 5071410 (1991-12-01), Pazell
patent: 5125396 (1992-06-01), Ray
patent: 5158543 (1992-10-01), Lazarus
patent: 5171279 (1992-12-01), Mathews
patent: 5195541 (1993-03-01), Obenchain
patent: 5201729 (1993-04-01), Hertzmann et al.
patent: 5242444 (1993-09-01), MacMillan
patent: 5334150 (1994-08-01), Kaali
patent: 5354302 (1994-10-01), Ko
patent: 5357983 (1994-10-01), Mathews
patent: 5376076 (1994-12-01), Kaali
patent: 5380291 (1995-01-01), Kaali
patent: 5392766 (1995-02-01), Masterson et al.
patent: 5395317 (1995-03-01), Kambin
patent: 5396880 (1995-03-01), Kagan et al.
patent: 5437637 (1995-08-01), Lieber et al.
patent: 5439449 (1995-08-01), Mapes et al.
patent: 5439464 (1995-08-01), Shapiro
patent: 5441041 (1995-08-01), Sauer et al.
patent: 5443058 (1995-08-01), Ough
patent: 5445142 (1995-08-01), Hassler, Jr.
patent: 5472426 (1995-12-01), Bonati et al.
patent: 5534009 (1996-07-01), Lander
patent: 5551947 (1996-09-01), Kaali
patent: 5562696 (1996-10-01), Nobles et al.
patent: 5603688 (1997-02-01), Upsher
patent: 5667472 (1997-09-01), Finn et al.
patent: 5667473 (1997-09-01), Finn et al.
patent: 5667478 (1997-09-01), McFarlin et al.
Laparoscopic Bone Dowel Surgical Technique Sofamor Danek The Spine Specialist.
Spinal Endoscopy, Evolution, Applications & Foundations; Hallett H. Mathews, M.D.
Laparoscopic Bone Dowel Instruments Brochure; Sofamor Danek, 1995.
Micro-Endo Systems Brochure; Sofamor Danek, 1994.

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