[미국특허]
Balloon catheter having metal balloon and method of making same
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61M-029/00
A61M-025/10
A61F-002/82
A61F-002/91
출원번호
US-0587821
(2012-08-16)
등록번호
US-9463305
(2016-10-11)
발명자
/ 주소
Boyle, Christopher T.
Bailey, Steven R.
Banas, Christopher E.
Palmaz, Julio C.
출원인 / 주소
Advanced Bio Prosthetic Surfaces, Ltd., a wholly owned subsidiary of Palmaz Scientific, Inc.
대리인 / 주소
Rosenbaum, David G.
인용정보
피인용 횟수 :
0인용 특허 :
140
초록▼
A metal balloon catheter having a main tubular body, a metal balloon proximate a distal end of the main tubular body, a central annulus extending along an entire longitudinal aspect of the catheter for accommodating a guidewire therethrough and an inflation annulus adjacent the central annulus which
A metal balloon catheter having a main tubular body, a metal balloon proximate a distal end of the main tubular body, a central annulus extending along an entire longitudinal aspect of the catheter for accommodating a guidewire therethrough and an inflation annulus adjacent the central annulus which extends along the longitudinal axis of the main tubular body and terminates in fluid flow communication with an inflation chamber of the metal balloon. The metal balloon catheter may be either unitary integral metal catheter in which the main tubular body and the balloon are fabricated of metal, or it may consist of a polymeric main tubular body and a metal balloon.
대표청구항▼
1. A balloon catheter comprising: at least two metal balloons positioned generally concentrically relative to each other and at least one annular lumen defined between the at least two metal balloons, wherein each of the at least two metal balloons consists of metal, and an innermost one of the at l
1. A balloon catheter comprising: at least two metal balloons positioned generally concentrically relative to each other and at least one annular lumen defined between the at least two metal balloons, wherein each of the at least two metal balloons consists of metal, and an innermost one of the at least two metal balloons has a solid wall thickness and is coupled at its proximal and distal ends to a catheter body member, and an outermost one of the at least two metal balloons has a plurality of openings passing through a wall thickness and in fluid flow communication with the at least one annular lumen. 2. The catheter of claim 1, further comprising at least one pharmacologically active agent disposed within the annular lumen and elutable through the plurality of openings. 3. The catheter of claim 2, further comprising an inflation lumen and an inflation port, the inflation port being in fluid flow communication with the the inflation lumen. 4. The catheter of claim 3, further comprising an introductory lumen in fluid flow communication with the annular lumen such that the at least one pharmacologically active agent may be introduced into the annular lumen through the introductory lumen. 5. The catheter of claim 2, wherein the plurality of openings are dimensioned to permit elution of the at least one pharmacologically active agent only upon application of a positive pressure to the innermost balloon. 6. The catheter of claim 2, wherein the metal is radiopaque. 7. The catheter of claim 2, wherein the metal is selected from the group consisting of titanium, vanadium, aluminum, nickel, tantalum, zirconium, chromium, silver, gold, silicon, magnesium, niobium, scandium, platinum, cobalt, palladium, manganese, molybdenum and alloys thereof. 8. The catheter of claim 2, wherein the wall thickness of each of the at least two metal balloons is between about 3 μm and 10 μm. 9. The catheter of claim 2, wherein both the at least two metal balloons deflate under the influence of at least one of a shape memory, superelastic or elastic property of the metal. 10. The catheter of claim 2, wherein the catheter body member is fabricated of a material selected from the group consisting of polymers and metals.
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