Straightening device for flexible tubular structures

Details Straightening device for flexible tubular structures Straightening device for flexible tubular structures

1989-06-26

1990-05-29

Grieb, William H.

Surgery

Truss

Perineal

128772, A61B 100

Patent

active

049286692

ABSTRACT:
A straightening device for endoscopic instruments or the like, the device having an elongated cable provided with a shoulder adjacent its distal end, an elongated, normally flexible non-compressible, coiled wire sheath surrounding the cable in sliding contact therewith, the coils of the sheath normally contacting each other, the distal end of the sheath being in abutment with the distal shoulder of the cable, a bearing block having a bore non-rotatably, slidably receiving a proximal end portion of the cable, stop on the bearing block in abutment with the proximal end of the sheath, and a power generating element adapted to forcibly engage the bearing block and the proximal end portion of the cable to place the cable in tension and apply straightening force to the sheath.

REFERENCES:
patent: 3547103 (1970-12-01), Cook
patent: 3847140 (1974-11-01), Ayella
patent: 3854473 (1974-12-01), Matsuo
patent: 4043323 (1977-08-01), Komiya
patent: 4215703 (1980-08-01), Willson
patent: 4732163 (1988-03-01), Bonello et al.

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