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| 국가/구분 | United States(US) Patent 등록 |
|---|---|
| 국제특허분류(IPC7판) |
|
| 출원번호 | US-0128948 (1993-09-29) |
| 발명자 / 주소 |
|
| 출원인 / 주소 |
|
| 인용정보 | 피인용 횟수 : 343 인용 특허 : 0 |
Disclosed herein is a catheter device for treatment of disease in biological conduits. The device has inner and outer coaxial catheter members, each having an inflatable balloon attached near its distal end. When the balloons are inflated, a sealed treatment chamber is created between the balloons.
Disclosed herein is a catheter device for treatment of disease in biological conduits. The device has inner and outer coaxial catheter members, each having an inflatable balloon attached near its distal end. When the balloons are inflated, a sealed treatment chamber is created between the balloons. The length of the treatment chamber is adjustable by sliding the coaxial catheter members with respect to each other to obtain a desired separation between the attached balloons before inflation. Biological debris is trapped within the chamber and removed by infusion and aspiration of a flushing fluid, reducing the risk of myocardial infarction. Adjunctive treatment devices can be inserted into the sealed treatment chamber through a lumen of the outer coaxial member.
An adjustable treatment chamber for insertion into a biological conduit, comprising: inner and outer coaxial catheter members, both members having a distal end and a proximal end and being slidable with respect to each other; two expandable sealing members, one sealing member being disposed near the
An adjustable treatment chamber for insertion into a biological conduit, comprising: inner and outer coaxial catheter members, both members having a distal end and a proximal end and being slidable with respect to each other; two expandable sealing members, one sealing member being disposed near the distal end of each catheter member; means for expanding the sealing members to form a pair of seals with the biological conduit, an adjustable length treatment chamber being defined within the conduit and between the seals an intermediate coaxial catheter member located between the inner and the outer coaxial catheter members and having a distal end and a proximal end, the intermediate catheter member being slidable and rotatable with respect to the other catheter members; and burden loosening means disposed near the distal end of the intermediate catheter member for sliding and axial rotation within the treatment chamber to loosen plaque burden deposited on the biological conduit, whereby, when the adjustable treatment chamber catheter is inserted into the biological conduit and the catheter members are slid with respect to each other to extend the distal end of the inner catheter member beyond the distal end of the outer catheter member and to adjust the longitudinal separation between the sealing members to a predetermined distance, the sealing members then being expanded, the adjustable length treatment chamber is created within the conduit and between the seals.
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