US5437637A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transport catheter
Assignee: Edwards Lifesciences Corp
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Filing: 1993-06-24
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Granted: 1995-08-01
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Expires: 2013-06-24
Abstract
Abstract A catheter with several independent lumens extending longitudinally through the catheter for accepting probes and for introducing fluid through the catheter and into a body cavity is disclosed. The catheter outer body has a cross-sectional maximum outer dimension. The first lumen is circular in cross-section, and has a cross-sectional dimension of approximately half the maximum outer dimension of the catheter body. The first lumen is capable of accepting various probes, as well as allowing simultaneous fluid flow through the lumen. The second lumen is crescent-shaped in cross-section and occupies at least a quarter of an arc around the cross-section of the catheter body. The large cross-section of the second lumen allows for a high fluid flow rate through the lumen. The third lumen allows for inflation of an inflation balloon (when present), and the fourth lumen allows for the passing of a portion of an instrument along the length of the lumen.
Inventors
- 👤 Clement E. Lieber
- 👤 Miriam H. Taimisto
- 👤 Mark A. Konno
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:46
CPC Classifications
A; A61; A61B; A61B8/00; A61B8/06; A61B5/00; A61B5/02; A61B5/026; A61B5/0275; A61B5/028; A61B8/12; A61M; A61M25/00; A61M25/0021; A61M25/0023; A61M25/0026; A61M25/0029; A61M25/003; A61M25/0032
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
169 words
A catheter for accepting probes and for introducing fluid through the catheter and into a body cavity, the catheter comprising: a catheter body circular in transverse cross-section and defining a central axis and having a continuous outer edge surface with a corresponding maximum outer dimension and having a proximal end and a distal end and a distal inflation balloon, said catheter body having walls defining, in transverse cross-section, lumens including a first wall defining a first lumen having a first cross-sectional dimension approximately half the maximum outer dimension of the catheter body wherein a substantial portion of the first wall has a thickness greater than shortest distance between the first wall and the outer edge of the catheter body and wherein the first lumen encloses the central axis, and a second wall defining a second, curved lumen wherein the second lumen occupies at least a quarter of an arc around the catheter body, and a third wall defining a third, inflation lumen for inflating and deflating the inflation balloon.
Claim 2
Dependent Claim
169 words
A catheter for accepting probes and for introducing fluid through the catheter and into a body cavity, the catheter comprising: a catheter body circular in transverse cross-section and defining a central axis and having a continuous outer edge surface with a corresponding maximum outer dimension and having a proximal end and a distal end and a distal inflation balloon, said catheter body having walls defining, in transverse cross-section, lumens including a first wall defining a first lumen having a first cross-sectional dimension approximately half the maximum outer dimension of the catheter body wherein a substantial portion of the first wall has a thickness greater than shortest distance between the first wall and the outer edge of the catheter body and wherein the first lumen encloses the central axis, and a second wall defining a second, curved lumen wherein the second lumen occupies at least a quarter of an arc around the catheter body, and a third wall defining a third, inflation lumen for inflating and deflating the inflation balloon.
Claim 3
Dependent Claim
25 words
The catheter of claim 1 further comprising a fourth wall defining a fourth lumen for accepting a portion of a sensing instrument for the catheter.
Claim 4
Dependent Claim
17 words
The catheter of claim 2 wherein the area of the fourth lumen is approximately 0.0001 square inches.
Claim 5
Dependent Claim
58 words
The catheter of claim 1 wherein the catheter has an outer wall surface portion with an outer curvature and the first lumen has a circular transverse cross-sectional configuration and the curved lumen has an outer wall surface adjacent the catheter outer wall surface portion and having a curvature approximating the curvature of the catheter outer wall surface portion.
Claim 6
Dependent Claim
34 words
The catheter of claim 1 wherein the first lumen and the curved lumen are positioned with respect to each other so as to be each bisected by a plane extending longitudinally of the catheter.
Claim 7
Dependent Claim
37 words
The catheter of claim 1 wherein a substantial portion of the first wall and the second wall has a thickness greater than the shortest distance between the first wall and the outer edge of the catheter body.
Claim 8
Dependent Claim
14 words
The catheter of claim 1 wherein the maximum outer dimension is approximately 0.101 inches.
Claim 9
Dependent Claim
18 words
The catheter of claim 1 wherein the cross-sectional area of the first lumen is approximately 0.002 square inches.
Claim 10
Dependent Claim
18 words
The catheter of claim 1 wherein the cross-sectional area of the second lumen is approximately 0.0016 square inches.
Claim 11
Dependent Claim
17 words
The catheter of claim 1 wherein the area of the third lumen is approximately 0.0001 square inches.
Claim 12
Dependent Claim
158 words
An elongated flexible transport catheter having a round catheter body, and further having at least two independent lumens extending longitudinally from a catheter proximal end to a catheter distal end, wherein the lumens include: a first lumen defined by a first wall, wherein a substantial portion of the first wall has a thickness greater than shortest distance between the first wall and the outer edge of the catheter body and wherein the first lumen has a circular cross-sectional area of approximately thirty percent of the total cross-sectional area of the catheter body; a second lumen having a curved cross-sectional area of approximately twenty percent of the total cross-sectional area of the catheter body; a third lumen having a cross-sectional area of approximately one and one-half percent of the total cross-sectional area of the catheter body; and a fourth lumen having a cross-sectional area of approximately one and one-half percent of the total cross-sectional area of the catheter body.
Claim 13
Dependent Claim
158 words
An elongated flexible transport catheter having a round catheter body, and further having at least two independent lumens extending longitudinally from a catheter proximal end to a catheter distal end, wherein the lumens include: a first lumen defined by a first wall, wherein a substantial portion of the first wall has a thickness greater than shortest distance between the first wall and the outer edge of the catheter body and wherein the first lumen has a circular cross-sectional area of approximately thirty percent of the total cross-sectional area of the catheter body; a second lumen having a curved cross-sectional area of approximately twenty percent of the total cross-sectional area of the catheter body; a third lumen having a cross-sectional area of approximately one and one-half percent of the total cross-sectional area of the catheter body; and a fourth lumen having a cross-sectional area of approximately one and one-half percent of the total cross-sectional area of the catheter body.
Claim 14
Dependent Claim
25 words
The catheter of claim 11 further including a distal inflation balloon and wherein the third lumen is used for inflating and deflating the inflation balloon.
Claim 15
Dependent Claim
21 words
The catheter of claim 11 wherein the fourth lumen is dimensioned to receive part of a sensing instrument for the catheter.
Claim 16
Dependent Claim
223 words
A catheter for accepting probes and for introducing fluid through the catheter and into a body cavity, the catheter comprising: a round catheter body having an outer edge with a maximum outer diameter and a radius and having a proximal end and a distal end and further having walls defining, in transverse cross-section, a plurality of lumens extending longitudinally through the catheter body including a first wall defining a first circular lumen having a first diameter approximating the radius of the catheter body, wherein a substantial portion of the first wall has a thickness greater than the shortest distance between the first wall and the outer edge of the catheter body, a second wall defining a curved lumen wherein the lumen occupies at least a quarter of an arc around the catheter body, a third wall defining an inflation lumen, and a fourth wall defining an instrument lumen for passing a portion of an instrument along the lumen; a plurality of extension tubes, each having a first end and a second end, each of the second ends being coupled to a respective lumen wall for permitting access to the respective lumen; and an inflation balloon coupled to the distal end of the catheter body, wherein the inflation lumen is used for inflating and deflating the balloon in order to properly positioning the catheter.
Claim 17
Dependent Claim
223 words
A catheter for accepting probes and for introducing fluid through the catheter and into a body cavity, the catheter comprising: a round catheter body having an outer edge with a maximum outer diameter and a radius and having a proximal end and a distal end and further having walls defining, in transverse cross-section, a plurality of lumens extending longitudinally through the catheter body including a first wall defining a first circular lumen having a first diameter approximating the radius of the catheter body, wherein a substantial portion of the first wall has a thickness greater than the shortest distance between the first wall and the outer edge of the catheter body, a second wall defining a curved lumen wherein the lumen occupies at least a quarter of an arc around the catheter body, a third wall defining an inflation lumen, and a fourth wall defining an instrument lumen for passing a portion of an instrument along the lumen; a plurality of extension tubes, each having a first end and a second end, each of the second ends being coupled to a respective lumen wall for permitting access to the respective lumen; and an inflation balloon coupled to the distal end of the catheter body, wherein the inflation lumen is used for inflating and deflating the balloon in order to properly positioning the catheter.
Claim 18
Dependent Claim
27 words
The catheter of claim 14 wherein the first end of each of the extension tubes is coupled to a respective one of a plurality of threaded hubs.
Claim 19
Dependent Claim
172 words
A catheter for accepting probes and for introducing fluid through the catheter and into a body cavity, the catheter comprising: a round catheter body having a central axis and a proximal end and a distal end and further having internal walls defining, in transverse cross-section, a plurality of lumens extending longitudinally a substantial distance through the catheter body including a first wall defining a first, circular lumen encircling the central axis, wherein a substantial portion of the first wall has a thickness greater than shortest distance between the first wall and the outer edge of the catheter body, a second wall defining a second, curved lumen, and a third wall defining an inflation lumen; a plurality of extension tubes, each having a first end and a second end, each of the second ends being coupled to a respective lumen wall for permitting access to the respective lumen; and an inflation balloon coupled to the distal end of the catheter body, wherein the inflation lumen is used for inflating and deflating the balloon.
Claim 20
Dependent Claim
172 words
A catheter for accepting probes and for introducing fluid through the catheter and into a body cavity, the catheter comprising: a round catheter body having a central axis and a proximal end and a distal end and further having internal walls defining, in transverse cross-section, a plurality of lumens extending longitudinally a substantial distance through the catheter body including a first wall defining a first, circular lumen encircling the central axis, wherein a substantial portion of the first wall has a thickness greater than shortest distance between the first wall and the outer edge of the catheter body, a second wall defining a second, curved lumen, and a third wall defining an inflation lumen; a plurality of extension tubes, each having a first end and a second end, each of the second ends being coupled to a respective lumen wall for permitting access to the respective lumen; and an inflation balloon coupled to the distal end of the catheter body, wherein the inflation lumen is used for inflating and deflating the balloon.
Claim 21
Dependent Claim
45 words
The catheter of claim 16 wherein the second lumen comprises an injectate lumen and wherein the catheter further comprises an injectate port opening the injectate lumen to the outside of the catheter and an injectate plug in the injectate lumen distal of the injectate port.
Claim 22
Dependent Claim
26 words
The catheter of claim 17 further comprising an insert in the injectate lumen extending distally of the injectate plug to displace air from the injectate lumen.
Claim 23
Dependent Claim
19 words
The catheter of claim 18 further comprising a filler between the insert and the wall of the injectate lumen.
Claim 24
Dependent Claim
19 words
The catheter of claim 16 further comprising fourth wall defining a fourth lumen for passing instrumentation along the lumen.
Claim 25
Dependent Claim
23 words
The catheter of claim 20 further comprising a thermistor exposed to the outside of the catheter and positioned proximal of the inflation balloon.
Claim 26
Dependent Claim
31 words
The catheter of claim 16 wherein the catheter is round and has an outer diameter and the first circular lumen has a diameter approximately half the outer diameter of the catheter.
Claim 27
Dependent Claim
27 words
The catheter of claim 22 wherein the curved lumen curves through an arc of more than a quarter of a full circle passing through the curved lumen.
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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) | 1998-07-31 | 1999-01-30 | 1999-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-07-31 | 2003-01-30 | 2003-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-07-31 | 2007-01-30 | 2007-08-01 | $7700.00 | Window Closed / Lapsed |