Surgery – Instruments – Means for inserting or removing conduit within body
Patent
1995-08-01
1997-05-13
Hafer, Robert A.
Surgery
Instruments
Means for inserting or removing conduit within body
606192, 606194, 606195, A61F 1100
Patent
active
056287542
ABSTRACT:
The present invention is for a stent delivery guide catheter to be used in percutaneous transluminal coronary angioplasty (PTCA). The stent delivery guide catheter consists of a guide catheter body having proximal and distal ends with a cylindrical outer wall and a coaxial inner wall defining a inner lumen. A bladder is formed between the inner and outer walls and is in fluid communication with an inflation lumen. A radially expandable and compressible stent is located inside the guide catheter body and is removably attached to the inner wall in the area of the bladder. In use, a balloon catheter is slid inside the guide catheter with the balloon positioned under the stent. When the bladder is inflated, the stent is compressed radially inward and is deposited on the balloon catheter. The present invention can also be used without the stent to facilitate the exchange of an over-the-wire balloon catheter. The balloon catheter is pulled proximal to the inflatable bladder inside the guide catheter. The bladder is then inflated and compressed to hold the guidewire while the balloon catheter is exchanged.
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Boyle William J.
Krejol Paul W.
Lunn Peter A.
Shevlin Michael R.
Shy James M.
Hafer Robert A.
Medtronic Inc.
Patton Harold R.
Plunkett Dianne M. F.
Shevlin Michael R.
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