US6652565B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Central venous catheter with heat exchange properties
Assignee: Zoll Circulation Inc
•
Filing: 2001-08-24
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Granted: 2003-11-25
•
Expires: 2021-08-24
Abstract
Abstract An introducer sheath for a central venous catheter includes a sheath body and a temperature sensor mounted distally on the body. Either the catheter or sheath has a heat exchange region through which coolant is circulated to effect heat exchange with the body, with the coolant temperature being controlled in response to signals from the temperature sensor. Arterial dialysis heat exchange catheters and jugular bulb heat exchange catheters are also disclosed.
Inventors
- 👤 Lynn M. Shimada
- 👤 William J. Worthen
- 👤 Scott M. Evans
- 👤 Xia Luo
- 👤 Robert Pecor
- 👤 Blair D. Walker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:28
CPC Classifications
A; A61; A61F; A61F7/00; A61F7/12; A61F7/123; A61B; A61B17/00; A61B17/34; A61B17/3415; A61M; A61M25/00; A61M25/01; A61M25/06; A61M25/0662; A61B17/3417; A61B17/3421; A61B17/3462; A61B2017/00017; A61B2017/00022; A61B2017/00084; A61B18/00; A61B2018/00005; A61B2018/00011; A61B2018/00023; A61F2007/126; A61F7/10; A61M1/00; A61M1/36; A61M1/369; A61M25/0021; A61M25/0023; A61M25/0026; A61M25/003; A61M2025/0031; A61M2025/0036; A61M25/10; A61M25/1011; A61M2025/1013; A61M2205/00; A61M2205/36; A61M25/0028; A61M25/0032; A61M5/00; A61M5/44
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
77 words
A jugular vein catheter system, comprising: a catheter body bearing at least one oxygen sensor; an optical fiber connected to the oxygen sensor; an oxygen measuring system connected to the fiber; a heat exchange region associated with a distal segment of the catheter body, wherein the body is formed with a coolant supply lumen and a coolant return lumen, both of the lumens communicating with the heat exchange region to effect heat exchange with a patient's body.
Claim 2
Dependent Claim
77 words
A jugular vein catheter system, comprising: a catheter body bearing at least one oxygen sensor; an optical fiber connected to the oxygen sensor; an oxygen measuring system connected to the fiber; a heat exchange region associated with a distal segment of the catheter body, wherein the body is formed with a coolant supply lumen and a coolant return lumen, both of the lumens communicating with the heat exchange region to effect heat exchange with a patient's body.
Claim 3
Dependent Claim
22 words
The system of claim 1 , wherein the heat exchange region is established by at least one membrane attached to the body.
Claim 4
Dependent Claim
79 words
A jugular vein catheter system, comprising: a catheter body bearing at least one oxygen sensor; an optical fiber connected to the oxygen sensor; an oxygen measuring system connected to the fiber; a heat exchange region associated with a distal segment of the catheter body, further comprising at least one sensor selected from the group including: temperature sensors, pressure sensors, the sensor being supported by the body and operably connected through at least one sensor lumen with a monitoring system.
Claim 5
Dependent Claim
79 words
A jugular vein catheter system, comprising: a catheter body bearing at least one oxygen sensor; an optical fiber connected to the oxygen sensor; an oxygen measuring system connected to the fiber; a heat exchange region associated with a distal segment of the catheter body, further comprising at least one sensor selected from the group including: temperature sensors, pressure sensors, the sensor being supported by the body and operably connected through at least one sensor lumen with a monitoring system.
Claim 6
Dependent Claim
68 words
An arterial catheter system, comprising: a catheter body bearing at least one blood lumen; a dialysis system communicating with the blood lumen; a heat exchange region associated with a distal segment of the catheter body, wherein the body is formed with a coolant supply lumen and a coolant return lumen, both of the lumens communicating with the heat exchange region to effect heat exchange with a patient's body.
Claim 7
Dependent Claim
68 words
An arterial catheter system, comprising: a catheter body bearing at least one blood lumen; a dialysis system communicating with the blood lumen; a heat exchange region associated with a distal segment of the catheter body, wherein the body is formed with a coolant supply lumen and a coolant return lumen, both of the lumens communicating with the heat exchange region to effect heat exchange with a patient's body.
Claim 8
Dependent Claim
22 words
The system of claim 4 , wherein the heat exchange region is established by at least one membrane attached to the body.
Claim 9
Dependent Claim
114 words
A heat exchange catheter, comprising: a catheter body defining at least a coolant supply lumen, a coolant return lumen, and an air lumen; at least a first cooling membrane defining a chamber communicating with the coolant supply and return lumens; and at least a first inflation balloon disposed in the chamber and selectively movable between an inflated configuration, wherein the inflation balloon causes coolant to flow near an outer surface of the cooling membrane to thereby effect relatively greater heat exchange with the blood, and a deflated configuration, wherein coolant tends to flow through the cooling membrane with a laminar flow characteristic nearer the catheter body than the outer surface of the cooling membrane.
Claim 10
Dependent Claim
114 words
A heat exchange catheter, comprising: a catheter body defining at least a coolant supply lumen, a coolant return lumen, and an air lumen; at least a first cooling membrane defining a chamber communicating with the coolant supply and return lumens; and at least a first inflation balloon disposed in the chamber and selectively movable between an inflated configuration, wherein the inflation balloon causes coolant to flow near an outer surface of the cooling membrane to thereby effect relatively greater heat exchange with the blood, and a deflated configuration, wherein coolant tends to flow through the cooling membrane with a laminar flow characteristic nearer the catheter body than the outer surface of the cooling membrane.
Claim 11
Dependent Claim
105 words
A central venous access system, comprising: a multi-lumen catheter; at least one of: a heat exchange membrane, and a balloon, located distally on the catheter and communicating with at least one coolant lumen of the catheter; a heat exchange system communicating with at least the coolant lumen, coolant being circulatable between the heat exchange system and the membrane or balloon to effect heat exchange with a patient; and wherein at least one lumen of the catheter is adapted to engage a central venous component, the central venous component being at least one of: a source of medicament, a syringe, a device, and a sensing system.
Claim 12
Dependent Claim
105 words
A central venous access system, comprising: a multi-lumen catheter; at least one of: a heat exchange membrane, and a balloon, located distally on the catheter and communicating with at least one coolant lumen of the catheter; a heat exchange system communicating with at least the coolant lumen, coolant being circulatable between the heat exchange system and the membrane or balloon to effect heat exchange with a patient; and wherein at least one lumen of the catheter is adapted to engage a central venous component, the central venous component being at least one of: a source of medicament, a syringe, a device, and a sensing system.
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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) | 2006-11-24 | 2007-05-26 | 2007-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2010-11-24 | 2011-05-26 | 2011-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2014-11-24 | 2015-05-26 | 2015-11-25 | $7700.00 | Window Closed / Lapsed |