Patent DE592549C successfully refreshed from Google Patents.
US5314409A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catheter for esophageal perfusion
Assignee: UVA Licensing and Ventures Group
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Filing: 1993-03-11
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Granted: 1994-05-24
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Expires: 2013-03-11
Abstract
Abstract An esophageal perfusion catheter, having an outer housing, a plurality of flexible, tubular channel members within said outer housing, and at least two spaced balloon members encompassing said catheter. Two of the channel members are in fluid communication with each of two balloons. One of the balloons is about 150 millimeters from the distal end of said catheter and about 75 millimeters from the other balloon. A third of the tubular channel members is an esophageal perfusion aspirating channel and is in communication with a port at the distal end of the catheter. A fourth of the tubular channel members serves as a gastric aspirating channel. A fifth of the tubular channel members serves as an aspirating channel. The sixth channel member, serves as an air vent. The esophageal perfusion aspirating channel has a ID of about 3 millimeters. The gastric aspirating channel has a ID of about 2 millimeters. The two channel members which communicate with the balloons have a ID of about 1 millimeter. The interior space between the outer housing and the channel members can be filled with silicone.
Inventors
- 👤 Jerzy Sarosiek
- 👤 Richard W. McCallum
- 👤 Ravinder K. Mittal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:03
CPC Classifications
A; A61; A61J; A61J15/00; A61J15/0003; A61J15/0026; A61J15/003; A61J15/0046; A61J15/0049; A61J15/0073; A61M; A61M25/00; A61M25/10; A61M25/1011; A61J15/0096; A61M25/0021; A61M25/0023; A61M25/0026; A61M2025/0036; A61M2025/004; A61M2025/1043; A61M2025/1052; A61M2210/00; A61M2210/10; A61M2210/1042; A61M2210/105
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
207 words
An esophageal perfusion catheter, the catheter comprising: an outer housing, a plurality of flexible, tubular channel members within said outer housing, at least two spaced balloon members encompassing said catheter, a first of said tubular channel members being in fluid communication with a first of said at least two balloons, said first balloon being closer to the distal end of said catheter than the second balloon, a second of said tubular channel members being in fluid communication with a second of said at least two balloons, a third of said tubular channel members being an esophageal perfusion aspirating channel and being in communication with at least one port, said at least one port being at the distal end of said catheter, a fourth of said tubular channel members being a gastric aspirating channel, said gastric aspirating channel being in fluid communication with a plurality of ports positioned at the distal end of the catheter, a fifth of said tubular channel members being an aspirating channel, said fifth channel member being in communication with a port above said second balloon, and a sixth channel member, said sixth channel member being an air vent and being in fluid communication with a port positioned below and proximate the second balloon.
Claim 2
Dependent Claim
207 words
An esophageal perfusion catheter, the catheter comprising: an outer housing, a plurality of flexible, tubular channel members within said outer housing, at least two spaced balloon members encompassing said catheter, a first of said tubular channel members being in fluid communication with a first of said at least two balloons, said first balloon being closer to the distal end of said catheter than the second balloon, a second of said tubular channel members being in fluid communication with a second of said at least two balloons, a third of said tubular channel members being an esophageal perfusion aspirating channel and being in communication with at least one port, said at least one port being at the distal end of said catheter, a fourth of said tubular channel members being a gastric aspirating channel, said gastric aspirating channel being in fluid communication with a plurality of ports positioned at the distal end of the catheter, a fifth of said tubular channel members being an aspirating channel, said fifth channel member being in communication with a port above said second balloon, and a sixth channel member, said sixth channel member being an air vent and being in fluid communication with a port positioned below and proximate the second balloon.
Claim 3
Dependent Claim
19 words
The esophageal perfusion catheter of claim 1, wherein said esophageal perfusion channel has a ID of about 3 millimeters.
Claim 4
Dependent Claim
19 words
The esophageal perfusion catheter of claim 1, wherein said gastric aspirating channel has a ID of about 2 millimeters.
Claim 5
Dependent Claim
22 words
The esophageal perfusion catheter of claim 1, wherein said first and said second channel members have a ID of about 1 millimeter.
Claim 6
Dependent Claim
18 words
The esophageal perfusion catheter of claim 1, wherein said fifth channel has a ID of about 2 millimeters.
Claim 7
Dependent Claim
26 words
The esophageal perfusion catheter of claim 1, wherein the interior space between said outer housing and said channel members is filled with a flexible polymeric material.
Claim 8
Dependent Claim
23 words
The esophageal perfusion catheter of claim 1, wherein the interior space between said outer housing and said channel members is filled with silicone.
Claim 9
Dependent Claim
20 words
The esophageal perfusion catheter of claim 1, wherein said balloons are spaced apart on the order of about 75 millimeters.
Claim 10
Dependent Claim
27 words
The esophageal perfusion catheter of claim 1, wherein said first balloon is spaced on the order of about 150 millimeters from the distal end of said catheter.
Claim 11
Dependent Claim
31 words
The esophageal perfusion catheter of claim 1, wherein two ports are provided proximate to, and above, said first balloon, said ports being in communication with said third, esophageal perfusion aspirating channel.
Claim 12
Dependent Claim
25 words
The esophageal perfusion catheter of claim 10, further comprising a plurality of stop cocks, each channel member being connected to one of said stop cocks.
References Cited (Backward Citations)
US2854982A
Cited
US3394705A
Cited
US4100246A
Cited
US4423725A
Cited
US4714460A
Cited
US4676778A
Cited
US5071406A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-05-23 | 1997-11-22 | 1998-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-05-23 | 2001-11-22 | 2002-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-05-23 | 2005-11-22 | 2006-05-24 | $7700.00 | Window Closed / Lapsed |