Patent US2937364A successfully refreshed from Google Patents.
US5306263A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catheter
Assignee: Individual
•
Filing: 1992-05-01
•
Granted: 1994-04-26
•
Expires: 2012-05-01
Abstract
Abstract An improved catheter for insertion into the right coronary artery of a cardiovascular system including an elongated, preshaped tubular member comprising a first straight portion extending from the proximal end of the catheter and a distal end portion extending from the straight portion and bent in a unique manner to rest along the inner wall of said artery and to enable the distal end to be precisely located relative to the artery.
Inventors
- 👤 Jan Voda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:49
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/0021; A61M25/0041
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
210 words
A catheter cooperable with a right main coronary artery of a cardiovascular system via the aortic arch and ascending aorta of said system, said catheter comprising a preformed, elongated tubular member comprising: a proximal end portion extending distally from a proximal end of said tubular member; and a distal end portion extending distally from said proximal end portion and including: a first curved portion extending distally from said proximal end portion and being curved in a first arced direction, wherein when inserted into said system, said first curved portion defines a first contact portion adapted for resting against a portion of the inner wall of said aortic arch; and a first additional portion extending distally from said first curved portion, wherein when said inserted into said system, said additional portion defines a second contact portion adapted for resting against a portion of a wall of said ascending aorta opposite the right coronary artery, a second additional portion extending distally from the first additional portion, wherein when inserted into said system, said second additional portion defines a second curved portion having ends forming an obtuse angle and a third curved portion having ends forming an obtuse angle, said second and third curved portions being curved in a second opposite arced direction.
Claim 2
Dependent Claim
210 words
A catheter cooperable with a right main coronary artery of a cardiovascular system via the aortic arch and ascending aorta of said system, said catheter comprising a preformed, elongated tubular member comprising: a proximal end portion extending distally from a proximal end of said tubular member; and a distal end portion extending distally from said proximal end portion and including: a first curved portion extending distally from said proximal end portion and being curved in a first arced direction, wherein when inserted into said system, said first curved portion defines a first contact portion adapted for resting against a portion of the inner wall of said aortic arch; and a first additional portion extending distally from said first curved portion, wherein when said inserted into said system, said additional portion defines a second contact portion adapted for resting against a portion of a wall of said ascending aorta opposite the right coronary artery, a second additional portion extending distally from the first additional portion, wherein when inserted into said system, said second additional portion defines a second curved portion having ends forming an obtuse angle and a third curved portion having ends forming an obtuse angle, said second and third curved portions being curved in a second opposite arced direction.
Claim 3
Dependent Claim
24 words
The catheter of claim 1 wherein a portion of said second contact portion extends generally rectilinearly along the inner wall of said ascending aorta.
Claim 4
Dependent Claim
25 words
The catheter of claim 1 wherein said first additional portion comprises a tip portion adapted for placement substantially coaxial within an ostium of said artery.
Claim 5
Dependent Claim
38 words
The catheter of claim 3 wherein said second contact portion has a distal end adapted for placement along said portion of said ascending aorta generally diametrically opposite said ostium to axially support said tip portion within said ostium.
Claim 6
Dependent Claim
56 words
The catheter of claim 3 wherein said first additional portion further comprises: a first straight portion extending distally from said first curved portion and generally toward said proximal end portion; a second straight portion extending distally from said first straight portion; and a third straight portion extending between said second straight portion and said tip portion.
Claim 7
Dependent Claim
18 words
The catheter of claim 5 wherein said second straight portion is generally parallel with said proximal end portion.
Claim 8
Dependent Claim
17 words
The catheter of claim 5 wherein said tip portion is generally perpendicular to said second straight portion.
Claim 9
Dependent Claim
17 words
The catheter of claim 1 wherein said first curved portion forms a curve of 200° to 240°.
Claim 10
Dependent Claim
17 words
The catheter of claim 1 wherein said first curved portion forms a curve of 260° to 320°.
Claim 11
Dependent Claim
33 words
The guide catheter of claim 1 wherein said first curve portion is long enough to cause the distal end portion of the body of the catheter to overlie itself in its preformed configuration.
Claim 12
Dependent Claim
147 words
A cardiovascular system catheter comprising a preformed, elongated tubular member comprising: a proximal end portion extending distally from a proximal end of said tubular member; and a distal end portion extending distally from said proximal end portion and including: a curved portion extending distally from said proximal end portion for at least 200°; a first portion extending distally from said curved portion and generally toward said proximal end portion; a second portion extending distally from said first portion and forming a first angle therebetween; a third portion extending distally from said second portion and forming a second angle therebetween; and a tip portion extending between said third portion and a distal end of said tubular member and forming a third angle between said third portion and said tip portion, wherein an interior of the first angle, the second angle, and the third angle generally face each other.
Claim 13
Dependent Claim
147 words
A cardiovascular system catheter comprising a preformed, elongated tubular member comprising: a proximal end portion extending distally from a proximal end of said tubular member; and a distal end portion extending distally from said proximal end portion and including: a curved portion extending distally from said proximal end portion for at least 200°; a first portion extending distally from said curved portion and generally toward said proximal end portion; a second portion extending distally from said first portion and forming a first angle therebetween; a third portion extending distally from said second portion and forming a second angle therebetween; and a tip portion extending between said third portion and a distal end of said tubular member and forming a third angle between said third portion and said tip portion, wherein an interior of the first angle, the second angle, and the third angle generally face each other.
Claim 14
Dependent Claim
16 words
The catheter of claim 11 wherein said curved portion forms a curve of 200° to 240°.
Claim 15
Dependent Claim
16 words
The catheter of claim 11 wherein said curved portion forms a curve of 260° to 320°.
Claim 16
Dependent Claim
29 words
The catheter of claim 11 wherein said second portion and said proximal end portion are generally rectilinear and said second portion is generally parallel with said proximal end portion.
Claim 17
Dependent Claim
27 words
The catheter of claim 11 wherein said tip portion and said second portion are generally rectilinear and said tip portion is generally perpendicular to said second portion.
Claim 18
Dependent Claim
31 words
The catheter of claim 11 wherein said first angle is between 20° and 50°, said second angle is between 10° and 50°, and said third angle is between 10° and 50°.
Claim 19
Dependent Claim
43 words
The catheter of claim 11 wherein said first, second, third and tip portions are generally rectilinear and said second portion is about 1.5 cm, said third portion is between 0.5 and 2.0 cm, and said tip portion is between 0.5 and 2.0 cm.
Claim 20
Dependent Claim
15 words
The catheter of claim 11 wherein all of said portions extend within a single plane.
Claim 21
Dependent Claim
31 words
The catheter of claim 11 wherein said first, second, third and tip portions define a plane which extends at an angle to said proximal end portion of between 8 and 40°.
Claim 22
Dependent Claim
44 words
The catheter of claim 11 wherein said proximal end portion, said curved portion and said first portion define a plane, said second portion extends outwardly from said plane at an angle of about 40° and said third portion extends approximately parallel to said plane.
Claim 23
Dependent Claim
57 words
The catheter of claim 11 wherein said first portion defines a first plane which extends from said proximal end portion at an angle between 10° and 30°, and said second, third and tip portions define another plane which extends back toward said proximal end portion at an angle from said first plane of between 0° and 30°.
Claim 24
Dependent Claim
32 words
The catheter of claim 21 wherein said angle between said first plane and said proximal end portion is 20° and said angle between said first plane and said other plane is 30°.
Claim 25
Dependent Claim
116 words
A guide catheter for use in treatment of a right coronary artery, the guide catheter comprising: a hollow, flexible tubular body having a proximal, generally straight portion and a distal, generally curvaceous portion with a distal end, the distal portion having a first curve distal the straight portion, a second curve distal the first curve, and a third curve distal the second curve, wherein the second and third curves are defined by preformed, consecutively arranged obtuse angled segments of the tubular body and the first curve is defined by a preformed, oppositely disposed arced extent of the tubular body long enough to cause the distal portion to overlie itself in its preformed configuration prior to use.
Claim 26
Dependent Claim
116 words
A guide catheter for use in treatment of a right coronary artery, the guide catheter comprising: a hollow, flexible tubular body having a proximal, generally straight portion and a distal, generally curvaceous portion with a distal end, the distal portion having a first curve distal the straight portion, a second curve distal the first curve, and a third curve distal the second curve, wherein the second and third curves are defined by preformed, consecutively arranged obtuse angled segments of the tubular body and the first curve is defined by a preformed, oppositely disposed arced extent of the tubular body long enough to cause the distal portion to overlie itself in its preformed configuration prior to use.
Claim 27
Dependent Claim
22 words
The guide catheter of claim 23 wherein said first curve portion is performed to have a curvature of at least 260 degrees.
Claim 28
Dependent Claim
45 words
The guide catheter of claim 23 wherein the tubular body has a first generally straight section extending distally from the third curve and including the distal end and wherein the tubular body has a second generally straight section extending between the second and third curves.
References Cited (Backward Citations)
US4117836A
Cited
US4033331A
Cited
US4020829A
Cited
US4292976A
Cited
US4925445A
Cited
US4568338A
Cited
US4547193A
Cited
US4909787A
Cited
US4822345A
Cited
US4747840A
Cited
US4738667A
Cited
US4784639A
Cited
US4981477A
Cited
US4935004A
Cited
US4976691A
Cited
US5044369A
Cited
US5045072A
Cited
US5098412A
Cited
US4950228A
Cited
US5195990A
Cited
US5215540A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-04-25 | 1997-10-25 | 1998-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-04-25 | 2001-10-25 | 2002-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-04-25 | 2005-10-25 | 2006-04-26 | $7700.00 | Window Closed / Lapsed |