Patent US5213575A successfully refreshed from Google Patents.
US5213575A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Two-piece retrievable catheter forming straight and T-shape configurations
Assignee: Individual
•
Filing: 1990-03-20
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Granted: 1993-05-25
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Expires: 2010-03-20
Abstract
Abstract A retrievable two piece catheter for percutaneous insertion into the common bile duct or similar vessel or canal of a patient is disclosed. The catheter is introduced as a single unit over a cannula and then formed in-situ within the duct into a T-tube configuration. Two sutures threaded through a main catheter are attached to a shorter distal auxiliary catheter, one in the center of the auxiliary catheter and one at an end thereof. After the two piece catheter has been inserted to the desired location and the cannula removed, the sutures are manipulated to maneuver the auxiliary catheter until it lies generally perpendicular to the elongated main catheter to thereby form the T-tube in fluid communication with each other. A suture-locking device provides self-retaining characteristics and the T-tube catheter can be easily retrieved, repositioned or exchanged. The T-tube catheter can be modified within a long distal limb to stent the Ampulla of Vater after balloon sphincteroplasty. A second type of two piece catheter with a self-retaining loop can be used as an internal biliary drainage catheter when treating distal common bile duct obstructions.
Inventors
- 👤 Daniel M. Scotti
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:55
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/01; A61M25/02; A61M25/04
Claims Analysis
Total Claims: 33
Claim 1
Independent Claim
149 words
A connectable two piece retrievable catheter for insertion into the duct of a patient to provide a conduit from inside the duct to outside the body wall of the patient, said catheter comprising a first catheter piece, a second catheter piece releasably connectable to said first catheter piece, and connecting means attached to said second catheter piece for connecting said second catheter piece to said first catheter piece in different first and second configurations upon manipulation of said connecting means while said second catheter piece is positioned within said duct, said second catheter piece connected in longitudinal alignment with said first catheter piece when in said first configuration and in transverse relationship with said first catheter piece when in said second configuration, said second catheter piece having fluid communication means providing fluid communication between said duct and said first catheter piece when arranged in at least said second configuration.
Claim 2
Dependent Claim
149 words
A connectable two piece retrievable catheter for insertion into the duct of a patient to provide a conduit from inside the duct to outside the body wall of the patient, said catheter comprising a first catheter piece, a second catheter piece releasably connectable to said first catheter piece, and connecting means attached to said second catheter piece for connecting said second catheter piece to said first catheter piece in different first and second configurations upon manipulation of said connecting means while said second catheter piece is positioned within said duct, said second catheter piece connected in longitudinal alignment with said first catheter piece when in said first configuration and in transverse relationship with said first catheter piece when in said second configuration, said second catheter piece having fluid communication means providing fluid communication between said duct and said first catheter piece when arranged in at least said second configuration.
Claim 3
Dependent Claim
32 words
The catheter of claim 1, wherein said first catheter piece comprises an elongated main catheter and said second catheter piece comprises an elongated auxiliary catheter of shorter length than said main catheter.
Claim 4
Dependent Claim
28 words
The catheter of claim 1, further including means for altering the shape of a portion of said second catheter piece from a straight configuration to a loop configuration.
Claim 5
Dependent Claim
40 words
The catheter of claim 1, further including storage means connectable to the proximal end of said first catheter piece for storage of a portion of said connecting means, said storage means arranged in fluid communication with said first catheter piece.
Claim 6
Dependent Claim
14 words
The catheter of claim 1, wherein said connecting means comprises a pair of sutures.
Claim 7
Dependent Claim
34 words
The catheter of claim 5, wherein the manipulation of one of said sutures configures said first catheter piece and said second catheter piece in said longitudinal alignment and in fluid communication with each other.
Claim 8
Dependent Claim
34 words
The catheter of claim 6, wherein the manipulation of another of said sutures configures said second catheter piece in said transverse relationship to said first catheter piece and in fluid communication with each other.
Claim 9
Dependent Claim
29 words
The catheter of claim 7, further including locking means for locking said sutures to maintain the configuration of said first catheter piece with respect to said second catheter piece.
Claim 10
Dependent Claim
41 words
The catheter of claim 7, wherein said fluid communication means includes a hole along the length of said second catheter piece for receiving an end of said first catheter piece when arranged in said transverse relationship to maintain fluid communication therebetween.
Claim 11
Dependent Claim
45 words
The catheter of claim 9, wherein said one of said sutures is attached to one end of said second catheter piece and said another of said sutures extends through said hole and is attached to said second catheter piece at a location opposite said hole.
Claim 12
Dependent Claim
20 words
The catheter of claim 9, wherein said hole is arranged off center along the length of said second catheter piece.
Claim 13
Dependent Claim
27 words
The catheter of claim 9, further including a slit formed in said second catheter piece extending from said hold to one end of said second catheter piece.
Claim 14
Dependent Claim
142 words
A two piece retrievable catheter for insertion into the common bile duct of a patient to provide a conduit from inside the duct to outside the body wall of the patient, said catheter comprising a main catheter, an auxiliary catheter, and connecting means attached to said auxiliary catheter for connecting said auxiliary catheter to said main catheter upon manipulation of said connecting means, said manipulation of said connecting means arranging said auxiliary catheter between a first position in longitudinal alignment with said main character for insertion of said catheter into said common bile duct and a second position in angular relationship with said main catheter for fluid communication with said common bile duct, said auxiliary catheter including a hole along the length thereof for receiving an end of said main catheter when arranged in said angular relationship to maintain fluid communication therebetween.
Claim 15
Dependent Claim
142 words
A two piece retrievable catheter for insertion into the common bile duct of a patient to provide a conduit from inside the duct to outside the body wall of the patient, said catheter comprising a main catheter, an auxiliary catheter, and connecting means attached to said auxiliary catheter for connecting said auxiliary catheter to said main catheter upon manipulation of said connecting means, said manipulation of said connecting means arranging said auxiliary catheter between a first position in longitudinal alignment with said main character for insertion of said catheter into said common bile duct and a second position in angular relationship with said main catheter for fluid communication with said common bile duct, said auxiliary catheter including a hole along the length thereof for receiving an end of said main catheter when arranged in said angular relationship to maintain fluid communication therebetween.
Claim 16
Dependent Claim
27 words
The catheter of claim 13, further including means for altering the shape of a portion of said auxiliary catheter from a straight configuration to a loop configuration.
Claim 17
Dependent Claim
38 words
The catheter of claim 13, further including storage means connectable to the proximal end of said main catheter for storage of a portion of said connecting means, said storage means arranged in fluid communication with said main catheter.
Claim 18
Dependent Claim
26 words
The catheter of claim 13, further included a cannula receivable within said main catheter and said auxiliary catheter to facilitate the insertion thereof within said patient.
Claim 19
Dependent Claim
19 words
The catheter of claim 13, wherein said connecting means comprises a pair of sutures attached to said auxiliary catheter.
Claim 20
Dependent Claim
27 words
The catheter of claim 17, further including locking means for locking said sutures to maintain said position of said main catheter with respect to said auxiliary catheter.
Claim 21
Dependent Claim
14 words
The catheter of claim 17, wherein said angular relationship comprises a generally perpendicular relationship.
Claim 22
Dependent Claim
19 words
The catheter of claim 17, wherein said main catheter and said auxiliary catheter each include a passageway extending therethrough.
Claim 23
Dependent Claim
41 words
The catheter of claim 20, wherein one of said sutures is attached to one end of said auxiliary catheter and another of said sutures extends through said hole and is attached to said auxiliary catheter at a location opposite said hole.
Claim 24
Dependent Claim
19 words
The catheter of claim 20, wherein said hole is arranged off center along the length of said auxiliary catheter.
Claim 25
Dependent Claim
25 words
The catheter of claim 20, further including a slit formed in said auxiliary catheter extending from said hole to one end of said auxiliary catheter.
Claim 26
Dependent Claim
46 words
The catheter of claim 20, wherein one of said sutures extends into said hole, and extends at a plurality of locations through the sidewall forming said auxiliary catheter to form an outer loop on either side of said hole and an outer loop opposite said hole.
Claim 27
Dependent Claim
46 words
The catheter of claim 20, wherein one of said sutures extends into said hole, and extends through the sidewall forming said auxiliary catheter at a plurality of locations to form an outer loop on either side of said hole and an inner loop opposite said hole.
Claim 28
Dependent Claim
170 words
A connectable two piece retrievable catheter for insertion into the duct of a patient to provide a conduit from inside the duct to outside the body wall of the patient, said catheter comprising a first catheter piece, a second catheter piece releasably connectable to said first catheter piece connecting means attached to said second catheter piece for connecting said second catheter piece to said first catheter piece in different first and second configurations upon manipulation of said connecting means while said second catheter piece is positioned within said duct, said second catheter piece connected in longitudinal alignment with said first catheter piece when in said first configuration and in angular relationship with said first catheter piece when in said second configuration, said second catheter piece having fluid communication means providing fluid communication between said duct and said first catheter piece when arranged in at least said second configuration and means for altering the shape of a piece of said second catheter piece from a straight configuration to a loop configuration.
Claim 29
Dependent Claim
170 words
A connectable two piece retrievable catheter for insertion into the duct of a patient to provide a conduit from inside the duct to outside the body wall of the patient, said catheter comprising a first catheter piece, a second catheter piece releasably connectable to said first catheter piece connecting means attached to said second catheter piece for connecting said second catheter piece to said first catheter piece in different first and second configurations upon manipulation of said connecting means while said second catheter piece is positioned within said duct, said second catheter piece connected in longitudinal alignment with said first catheter piece when in said first configuration and in angular relationship with said first catheter piece when in said second configuration, said second catheter piece having fluid communication means providing fluid communication between said duct and said first catheter piece when arranged in at least said second configuration and means for altering the shape of a piece of said second catheter piece from a straight configuration to a loop configuration.
Claim 30
Dependent Claim
181 words
A connectable two piece retrievable catheter for insertion into the duct of a patient to provide a conduit from inside the duct to outside the body wall of the patient, said catheter comprising a first catheter piece having an end opening, a second catheter piece releasably connectable to said first catheter piece, and connecting means attached to said second catheter piece for connecting said second catheter piece to said first catheter piece in different first and second configurations upon manipulation of said connecting means while said second catheter piece is positioned within said duct, said second catheter piece connected in longitudinal alignment with said first catheter piece when in said first configuration and in angular relationship with said first catheter piece when in said second configuration, said second catheter piece providing fluid communication between said duct and said first catheter piece when arranged in at least said second configuration, said second catheter piece including a hole along the length thereof for receiving said end opening of said first catheter piece when arranged in said angular relationship to maintain fluid communication therebetween.
Claim 31
Dependent Claim
181 words
A connectable two piece retrievable catheter for insertion into the duct of a patient to provide a conduit from inside the duct to outside the body wall of the patient, said catheter comprising a first catheter piece having an end opening, a second catheter piece releasably connectable to said first catheter piece, and connecting means attached to said second catheter piece for connecting said second catheter piece to said first catheter piece in different first and second configurations upon manipulation of said connecting means while said second catheter piece is positioned within said duct, said second catheter piece connected in longitudinal alignment with said first catheter piece when in said first configuration and in angular relationship with said first catheter piece when in said second configuration, said second catheter piece providing fluid communication between said duct and said first catheter piece when arranged in at least said second configuration, said second catheter piece including a hole along the length thereof for receiving said end opening of said first catheter piece when arranged in said angular relationship to maintain fluid communication therebetween.
Claim 32
Dependent Claim
144 words
A connectable two piece retrievable catheter for insertion into the duct of a patient to provide a conduit from inside the duct to outside the body wall of the patient, said catheter comprising a hollow first catheter piece having an end opening, a hollow second catheter piece releasably connectable to said first catheter piece having a side opening, a pair of sutures extending through said hollow first catheter piece and connected to said hollow second catheter piece, said hollow second catheter piece connected in end-to-end longitudinal alignment with said hollow first catheter piece upon manipulation of one of said sutures and connected at an angle to said first hollow catheter piece by said end opening of said hollow first catheter piece being retrieved within said side opening of said second catheter piece upon manipulation of another of said sutures to maintain fluid communication therebetween.
Claim 33
Dependent Claim
144 words
A connectable two piece retrievable catheter for insertion into the duct of a patient to provide a conduit from inside the duct to outside the body wall of the patient, said catheter comprising a hollow first catheter piece having an end opening, a hollow second catheter piece releasably connectable to said first catheter piece having a side opening, a pair of sutures extending through said hollow first catheter piece and connected to said hollow second catheter piece, said hollow second catheter piece connected in end-to-end longitudinal alignment with said hollow first catheter piece upon manipulation of one of said sutures and connected at an angle to said first hollow catheter piece by said end opening of said hollow first catheter piece being retrieved within said side opening of said second catheter piece upon manipulation of another of said sutures to maintain fluid communication therebetween.
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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) | 1996-05-24 | 1996-11-23 | 1997-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-05-24 | 2000-11-23 | 2001-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-05-24 | 2004-11-23 | 2005-05-25 | $7700.00 | Window Closed / Lapsed |