Surgery – Instruments – Means for inserting or removing conduit within body
Patent
1998-06-26
2000-09-12
Buiz, Michael
Surgery
Instruments
Means for inserting or removing conduit within body
606194, A61F 1100
Patent
active
061171409
ABSTRACT:
Inventive catheters are disclosed which employ a variety of devices for preventing unwanted motion of the catheter tip. These methods include the use of a slidably mounted annular shim located in the tip of the catheter which may frictionally engage the guidewire element, and an annular brush with bristles. In the later case, the extent of the frictional engagement between the tip and the guidewire is determined by the orientation of the bristles. The present invention is also directed to a catheter in which unwanted motion is prevented by the presence of a tension/compression cable extending from the proximal end of the catheter shaft to the distal end of the catheter shaft. In the unlocked position, the tension/compression cable has slack in it while in the engaged position, the cable is either under tension or under compression.
REFERENCES:
patent: 4932959 (1990-06-01), Horzewski et al.
patent: 4936310 (1990-06-01), Engstrom et al.
patent: 5443457 (1995-08-01), Ginn et al.
patent: 5788707 (1998-08-01), Del Toro et al.
patent: 5810867 (1998-09-01), Zarbatany et al.
Bui Vy Q.
Buiz Michael
Sci-Med Life Systems, Inc.
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