Patent US4625176A successfully refreshed from Google Patents.
EP0341988B1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Prostate balloon dilator
Assignee: American Medical Systems LLC
•
Filing: 1989-05-09
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Granted: 1993-01-13
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Expires: 2009-05-09
Abstract
No abstract record available.
Inventors
- 👤 Pratap Konudulla Reddy
- 👤 Michael Andrew Mikulich
- 👤 David Winston Clark
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 20:14
CPC Classifications
A; A61; A61M; A61M29/00; A61M29/02; A61M25/00; A61M25/10; A61M25/1011; A61M2025/1043; A61M2025/1079; A61M2210/00; A61M2210/16; A61M2210/166
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
139 words
An apparatus for dilation of the prostate urethra comprising: an impervious urinary catheter (10) for insertion in the prostate urethra (11), said catheter having a proximal section (14) and a distal section (16); dilation means (18) mounted on said proximal section (14) of the catheter; location means (20) mounted on the catheter; and activation means located at said distal section of the catheter for dilating said dilation means (18), characterised in that the location means (20) are mounted on the catheter at a distance of at least about 1 cm from the dilation means so that the location means is positionable at the bulbous urethra distal from the external sphincter and fixable thereat to hold the catheter in place when the dilation means is positioned at the prostate urethra, and activation means are provided to fix said location means.
Claim 2
Dependent Claim
31 words
An apparatus according to claim 1 wherein said dilation means is a dilation balloon (18) and said location means is a location balloon (20) of lesser size than the dilation balloon.
Claim 3
Dependent Claim
18 words
An apparatus according to claim 2 wherein said dilation balloon is made of a multi-layer limited distensible material.
Claim 4
Dependent Claim
41 words
An apparatus according to claim 3 wherein said multi-layer limited distensible material comprises an inner and outer layer of silicone and a middle layer of a limited distensible fabric, or an outer layer of silicone and an inner layer of polyester.
Claim 5
Dependent Claim
49 words
An apparatus according to claim 2 wherein said dilation balloon 18 and said location balloon (20) each have a proximal end and a distal end, and the distal end (24) of the dilation balloon has an integral protuberance of thicker and stiffer material than the remainder of the balloon.
Claim 6
Independent Claim
23 words
An apparatus according to any one of claims 3 to 5 wherein a lubricant is placed between the layers of the multi-layered material.
Claim 7
Independent Claim
53 words
An apparatus according to any one of claims 2 to 6 wherein said catheter has three lumens extending from said proximal section, one lumen (38) in communication with said dilation balloon, one lumen (44) in communication with said location balloon, and one lumen (34) adapted for communication with the bladder of a subject.
References Cited (Backward Citations)
No citation records indexed.
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