Patent US3665928A successfully refreshed from Google Patents.
US3665928A
Expired / Lapsed
US
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Self propelled catheter
Assignee: Individual
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Filing: 1969-10-06
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Granted: 1972-05-30
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Expires: 1989-10-06
Abstract
Abstract A catheter effective for self movement within a passageway comprises an elongated tube having a first channel extending axially thereof and a member operatively hingedly connected to the forward end of the tube. The member is provided with means such as a plurality of angularly projecting parts for gripping the walls of the passageway. Means are provided to oscillate the member within the passageway so that the projecting parts alternately grip one side wall of the passageway and then another. The oscillating means preferably comprises a fluid system which includes two channels connecting with the channel of the elongated tube, extending forwardly and outwardly therefrom, and provided with openings proximate the oscillating member. When a fluid is forced through the main channel it is directed by fluid control means to enter one and then the other of the laterally extending channels to pressurize different surface parts of the member, thereby to cause the oscillation thereof.
Inventors
- 👤 Louis R M Del Guercio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:20
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/01; A61M25/0105; A61M25/0116
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
139 words
A catheter effective for movement within a passageway defined by a plurality of walls comprising a catheter tube, a member operatively hingedly connected to the forward end of said tube for side-to-side oscillation, means operatively connected to said member and effective to grip the walls of the passageway as said member advances therethrough, and means operatively connected to said tube and effective to oscillate said member from side to side, whereby said gripping means alternately engages the opposite walls of the passageway, thereby to advance said tube along said passageway, said tube having a channel extending axially thereof and communicating with said member, said channel being adapted to receive and pass a fluid toward said member, and means operatively connected to said channel and effective to oscillate said member in response to the flow of fluid through said channel.
Claim 2
Dependent Claim
139 words
A catheter effective for movement within a passageway defined by a plurality of walls comprising a catheter tube, a member operatively hingedly connected to the forward end of said tube for side-to-side oscillation, means operatively connected to said member and effective to grip the walls of the passageway as said member advances therethrough, and means operatively connected to said tube and effective to oscillate said member from side to side, whereby said gripping means alternately engages the opposite walls of the passageway, thereby to advance said tube along said passageway, said tube having a channel extending axially thereof and communicating with said member, said channel being adapted to receive and pass a fluid toward said member, and means operatively connected to said channel and effective to oscillate said member in response to the flow of fluid through said channel.
Claim 3
Dependent Claim
115 words
In the catheter of claim 1, said tube having second and third channels communicating with said first channel and extending toward said member, each of said second and third channels having an opening in registration with said member, said openings being laterally spaced from each other and proximate to different surface parts of said member, and fluid control means operatively connected to said first channel and effective to direct a fluid passing through said first channel alternately to one and then the other of said second and third channels, thereby to cause said fluid to pass through one and then the other of said openings in said channels, whereby said member is caused to oscillate.
Claim 4
Dependent Claim
45 words
In the catheter of claim 2, a second tube operatively connected catheter tube, said second tube being in communication with the openings in said second and third channels and being effective to draw a fluid from said openings after the fluid passes through said channels.
Claim 5
Dependent Claim
110 words
The catheter of claim 2, in which said fluid control means comprises a first control tube having first and second orifices and a passageway therebetween, said first orifice being positioned in registration with and proximate to one of said surface parts on said member and said second orifice connecting with said first channel in a position to direct a fluid in said first channel toward (a) said second or (b) said third channel in response to (a) the substantial constriction of said first orifice when said surface part is in a first position and (b) the substantial opening of said orifice when said surface part is in a second position.
Claim 6
Dependent Claim
115 words
In the catheter of claim 4, a second control tube having first and second orifices and a passageway therebetween, said first orifice of said second control tube being positioned in registration with and proximate to the other of said surface parts of said member, and said second orifice of said second control tube connecting with said first channel opposite to said second orifice of said first control tube and in a position to direct a fluid in said first channel toward (a) said third and (b) said second channel in response to the (a) construction and (b) opening of said first orifice of said second tube by said other surface part when said member oscillates.
Claim 7
Dependent Claim
36 words
The catheter of claim 5, in which said first and second control tubes have parts extending axially of said first tube and parts extending laterally of said tube, said lateral parts terminating at said second orifices.
Claim 8
Dependent Claim
39 words
In the catheter of claim 6, a constricted nozzle at a part of said first channel positioned rearwardly of said second and third channels, said second orifices of said first and second control tubes being positioned proximate said nozzle.
Claim 9
Dependent Claim
110 words
The catheter of claim 3, in which said fluid control means comprises a first control tube having first and second orifices and a passageway therebetween, said first orifice being positioned in registration with and proximate to one of said surface parts on said member and said second orifice connecting with said first channel in a position to direct a fluid in said first channel towaRd (a) said second or (b) said third channel in response to (a) the substantial construction of said first orifice when said surface part is in a first position and (b) the substantial opening of said orifice when said surface part is in a second position.
Claim 10
Dependent Claim
115 words
In the catheter of claim 8, a second control tube having first and second orifices and a passageway therebetween, said first orifice of said second control tube being positioned in registration with and proximate to the other of said surface parts of said member, and said second orifice of said second control tube connecting with said first channel opposite to said second orifice of said first control tube and in a position to direct a fluid in said first channel toward (a) said third and (b) said second channel in response to the (a) constriction and (b) opening of said first orifice of said second tube by said other surface part when said member oscillates.
Claim 11
Dependent Claim
36 words
The catheter of claim 9, in which said first and second control tubes have parts extending axially of said first tube and parts extending laterally of said tube, said lateral parts terminating at said second orifices.
Claim 12
Dependent Claim
39 words
In the catheter of claim 10, a constricted nozzle at a part of said first channel positioned rearwardly of said second and third channels, said second orifices of said first and second control tubes being positioned proximate said nozzle.
Claim 13
Dependent Claim
31 words
The catheter of claim 11, in which said means for gripping the walls of said passageway comprise a plurality of projecting parts operatively connected to the outer surface of said member.
Claim 14
Dependent Claim
18 words
In the catheter of claim 11, a flexible collar operatively connected between said member and said catheter tube.
Claim 15
Dependent Claim
29 words
The catheter of claim 11, in which said catheter tube is provided with a plurality of openings for drainage of material from the passageway into which said catheter advances.
Claim 16
Dependent Claim
18 words
In the catheter of claim 7, a flexible collar operatively connected between said member and said catheter tube.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-30 | 1975-11-29 | 1976-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-30 | 1979-11-29 | 1980-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-30 | 1983-11-29 | 1984-05-30 | $7700.00 | Window Closed / Lapsed |