Endoluminal coil delivery system having a mechanical release mec

Details Endoluminal coil delivery system having a mechanical release mec Endoluminal coil delivery system having a mechanical release mec

1996-10-22

1998-05-05

Buiz, Michael

Surgery

Instruments

Forceps

606191, 606198, A61B 1728

Patent

active

057467692

ABSTRACT:
The invention provides endoluminal coil delivery systems and methods for positioning a coil within a body lumen. In particular, the device uses a mechanical latch in the form of jaws to positively engage the coil during positioning. The coil may be restrained in a straight configuration from within the coil, using an internal coilwire, or from outside using a catheter. Thus, the mechanism for releasing the coil to form its relaxed convoluted shape is separate from the mechanism for disengaging the coil from the delivery system. The use of an internal core wire allows a coil having a helical outer surface to be torqued against a fallopian tube or other body lumen wall, thereby firmly anchoring the coil in the target position prior to disengaging the delivery system.

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patent: 5312415 (1994-05-01), Palermo
patent: 5354295 (1994-10-01), Guglielmi et al.
Gupta, D.N. et al., "Antifertility Effect of an Intrafallopian Tubal Copper Device," Indian J. Exp. Biol., vol. 14, pp. 316-319, May, 1976.
Ross, P.L. et al., "Transcatheter Tubal Sterilization in Rabbits," Investigative Radiology, vol. 29, No. 5, pp. 570-573, 1994.

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