US3895637A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self propelled conduit traversing device
Assignee: Individual
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Filing: 1973-10-19
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Granted: 1975-07-22
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Expires: 1993-10-19
Abstract
Abstract A tubular organ traversing device includes a trailing inflatable radially expandable anchor member having a high restraint gripping periphery and a leading inflatable advancing member with a radially expandable trailing section, having a surface engaging periphery of less restraint than that of the anchor member and a longitudinally expandable leading section. A multilumen flexible tube is secured to and extends through the anchor member to a forward section of the advancing member through an elastomeric axial well in its rear. One lumen communicates with the anchor member and a second lumen to the advancing member and the two lumens are connected by way of a valve system to a pressurized fluid and exhaust and the valve system is controlled to sequentially first deflate both members, inflate the advancing member, inflate the anchor member, deflate the advancing member and then deflate the anchor member to commence the next cycle.
Inventors
- 👤 Daniel S J Choy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:55
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/01; A61M25/0105; A61M25/0116; A61M25/10; A61M25/1002; A61M2025/1043; A61M2025/1086
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
160 words
A self propelled conduit traversing device comprising a longitudinally extending flexible tubular member having first and second lumens, an inflatable transversely expandable anchor member connected to said tubular member and communicating with said first lumen, an inflatable advancing member connected to said tubular member and communicating with said second lumen and including a transversely expandable section and a longitudinally expandable section, said advancing member including a front wall affixed to said tubular member and a rear wall having a central opening and an axially extending elastomeric tube having a rear end joined to the border of said opening and a front end secured to said tubular member proximate said front end wall, said elastomeric tube surrounding and being radially spaced from said tubular member, and actuating means for connecting said first and second lumens to a source of pressurized fluid and exhaust in a predetermined sequence to expand and deflate said anchor member and advancing in accordance with said sequence.
Claim 2
Dependent Claim
160 words
A self propelled conduit traversing device comprising a longitudinally extending flexible tubular member having first and second lumens, an inflatable transversely expandable anchor member connected to said tubular member and communicating with said first lumen, an inflatable advancing member connected to said tubular member and communicating with said second lumen and including a transversely expandable section and a longitudinally expandable section, said advancing member including a front wall affixed to said tubular member and a rear wall having a central opening and an axially extending elastomeric tube having a rear end joined to the border of said opening and a front end secured to said tubular member proximate said front end wall, said elastomeric tube surrounding and being radially spaced from said tubular member, and actuating means for connecting said first and second lumens to a source of pressurized fluid and exhaust in a predetermined sequence to expand and deflate said anchor member and advancing in accordance with said sequence.
Claim 3
Dependent Claim
28 words
The device of claim 1 wherein said tubular member includes a service third lumen projecting to the distal end of the forwardmost of said anchor and advancing members.
Claim 4
Dependent Claim
28 words
The device of claim 1 wherein said anchor and advancing members are longitudinally spaced along said tubular member, said advancing member being disposed forwardly of said anchor member.
Claim 5
Dependent Claim
36 words
The device of claim 3 wherein said actuating means is programmed to cyclically seQuentially first deflate said anchor and advancing members, inflate said advancing member, then inflate said anchor member and then deflate said advancing member.
Claim 6
Dependent Claim
28 words
The device of claim 4 wherein said advancing member transversely expanding section first fully expands then said longitudinally extending section fully expands when said expanding member is pressurized.
Claim 7
Dependent Claim
16 words
The device of claim 1 wherein said longitudinally expanding section comprises an accordian pleated peripheral wall.
Claim 8
Dependent Claim
190 words
A self propelled conduit traversing device comprising a longitudinally extending flexible tubular member having first and second lumens, an inflatable transversely expandable anchor member connected to said tubular member and communicating with said first lumen, an inflatable advancing member connected to said tubular member and communicating with said second lumen and including a transversely expandable first section and a longitudinally expandable second section in free fluid communication with said first section and upon inflation of said advancing member, said second section expanding subsequent to the expansion of said first section, said advancing member including a front wall affixed to said tubular member and a rear wall having a central opening and an axially extending elastomeric tube having a rear end joined to the border of said opening and a front end secured to said tubular member proximate said front end wall, said elastomeric tube surrounding and being radially spaced from said tubular member, and actuating means for connecting said first and second lumens to a source of pressurized fluid and exhaust in a predetermined sequence to expand and deflate said anchor member, and advancing member in accordance with said sequence.
Claim 9
Dependent Claim
190 words
A self propelled conduit traversing device comprising a longitudinally extending flexible tubular member having first and second lumens, an inflatable transversely expandable anchor member connected to said tubular member and communicating with said first lumen, an inflatable advancing member connected to said tubular member and communicating with said second lumen and including a transversely expandable first section and a longitudinally expandable second section in free fluid communication with said first section and upon inflation of said advancing member, said second section expanding subsequent to the expansion of said first section, said advancing member including a front wall affixed to said tubular member and a rear wall having a central opening and an axially extending elastomeric tube having a rear end joined to the border of said opening and a front end secured to said tubular member proximate said front end wall, said elastomeric tube surrounding and being radially spaced from said tubular member, and actuating means for connecting said first and second lumens to a source of pressurized fluid and exhaust in a predetermined sequence to expand and deflate said anchor member, and advancing member in accordance with said sequence.
Claim 10
Dependent Claim
25 words
The device of claim 7 wherein the wall thickness of said transversely expandable section is less than the wall thickness of said longitudinally expandable section.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-07-21 | 1979-01-20 | 1979-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-21 | 1983-01-20 | 1983-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-21 | 1987-01-20 | 1987-07-22 | $7700.00 | Window Closed / Lapsed |