# US 2014/0155863 A1 · Method for a central venous line catheter having a temperature control system

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- Number: US 2014/0155863 A1
- Document ID: US20140155863A1
- Status: Published application
- Kind: A1
- Application number: 14/162,118
- Filed: 2014-01-23
- Published: 2014-06-05
- Earliest claimed: 1998-04-21
- Assignees: Zoll Circulation, Inc.
- Applicants: Zoll Circulation, Inc.
- Inventors: Blair D. Walker; Scott M. Evans; David P. Balding; Peter Barker
- Web page: https://patentgrep.com/patent/US20140155863A1

## CPC

- A61F 7/12: Devices for heating or cooling internal body cavities
- A61F 7/123: {using a flexible balloon containing the thermal element}
- A61M 25/00: Catheters; Hollow probes (dilators A61M29/00; {peritoneal catheters A61M1/285; tracheal tubes A61M16/04; for drainage A61M27/00; for uterus, vagina or rectum A61M31/00} ; for measuring or testing A61B; {materials for catheters A61L29/00})
- A61M 25/002: {Packages specially adapted therefor (combined with means for introducing catheters, e.g. dispensers, A61M25/0113); catheter kit packages (for surgical articles A61B50/30)}
- A61M 25/02: Holding devices, e.g. on the body
- A61B 2017/00084: {Temperature}
- A61F 2007/0054: {with a closed fluid circuit, e.g. hot water}
- A61F 2007/126: {for invasive application, e.g. for introducing into blood vessels}
- A61M 1/369: {Temperature treatment}
- A61M 5/44: having means for cooling or heating the devices or media
- A61M 25/003: {characterized by features relating to least one lumen located at the distal part of the catheter, e.g. filters, plugs or valves (catheter tips A61M25/0067)}
- A61M 25/0032: {characterized by at least one unconventionally shaped lumen, e.g. polygons, ellipsoids, wedges or shapes comprising concave and convex parts}
- A61M 25/10: Balloon catheters ({A61M25/0125 takes precedence; embolectomy A61B17/22032; retractors A61B17/02;} inflatable balloons for placing stents or stent-grafts A61F2/958 {; stomach balloons for treatment of obesity A61F5/0003; oesophagal tubes A61J15/00})
- A61M 25/1011: {Multiple balloon catheters}
- A61M 2025/0036: {with more than four lumina}
- A61M 2025/1013: {with concentrically mounted balloons, e.g. being independently inflatable}
- A61M 2205/36: related to heating or cooling
- A61M 2205/366: by liquid heat exchangers
- A61F: FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS (dental prosthetics A61C)
- A61M: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY (introducing media into or onto the bodies of animals A61D7/00; means for inserting tampons A61F13/26; devices for administering food or medicines orally A61J; containers for collecting, storing or administering blood or medical fluids A61J1/05); DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY (surgery A61B; chemical aspects of surgical articles A61L); DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR {(Electrotherapy, e.g. producing anaesthesia by the use of alternating or intermittent currents A61N1/36021)}
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)

## Abstract

A kit of parts comprises a system and instructions for use for controlling patient temperature which uses a central venous line catheter having a heat exchange element. The central venous line catheter is provided with one or more lumens for providing access to the central blood supply of the patient, and with additional lumens for communicating heat exchange fluid to the heat exchange element. Heat exchange fluid temperature is controlled through a feed back loop in which patient temperature is sensed and used to control a temperature control unit comprising a heating device and/or a cooling device in heat exchange relationship with the heat exchange fluid. A tubing set transports the heat exchange fluid between the central venous line and the temperature control unit, with a pump serving to circulate the fluid in a closed fluid circuit in the system.

## Claims

### Claim at position 1

1-37. (canceled)

### Claim 38

An apparatus comprising:
a catheter assembly;
at least two heat transfer elements on the catheter assembly;
a supply lumen communicating with the heat transfer elements to supply a heat exchange fluid to the heat transfer elements;
a return lumen in the catheter assembly and communicating with the heat transfer elements to receive the heat exchange fluid from the heat transfer elements; and
at least one exit port in the distal portion of the catheter assembly.

### Claim 39 (depends on 38)

The apparatus of claim 38, further comprising:
a through lumen within the catheter assembly extending to the distal portion of the catheter assembly to establish communication through the assembly from the distal portion of said catheter assembly, the exit port being in communication with the through lumen to establish a path for communication from outside the assembly, through the exit port, and into the through lumen.

### Claim 40 (depends on 38)

The apparatus of claim 38, wherein fluid communication is established between the supply lumen and at least one of the heat transfer elements by at least one input port and fluid communication is established between the supply lumen and at least one of the heat transfer elements by at least one output port, the output port being larger than the input port.

### Claim 41 (depends on 38)

The apparatus of claim 38, further comprising a patient anchor on the assembly and configured for affixing to a patient's skin.

### Claim 42 (depends on 40)

The apparatus of claim 40, further comprising a patient anchor on the assembly and configured for affixing to a patient's skin.

### Claim 43

A method comprising:
advancing a catheter assembly with at least two heat transfer elements into a vasculature of a patient;
supplying a heat exchange fluid to the heat transfer elements;
receiving the heat exchange fluid from the heat transfer elements; and
using at least one exit port in the distal portion of the catheter assembly to infuse medicament into the patient and/or to withdraw fluid from the patient.

### Claim 44 (depends on 43)

The method of claim 43, further comprising:
using a through lumen within the catheter assembly extending to the distal portion of the catheter assembly to establish communication through the assembly from the distal portion of said catheter assembly, the exit port being in communication with the through lumen to establish a path for communication from outside the assembly, through the exit port, and into the through lumen.

### Claim 45 (depends on 43)

The method of claim 43, comprising establishing communication between the supply lumen and at least one of the heat transfer elements by at least one input port and fluid communication is established between the supply lumen and at least one of the heat transfer elements by at least one output port, the output port being larger than the input port.

### Claim 46 (depends on 43)

The method of claim 43, further comprising affixing a patient anchor on the assembly to a patient's skin.

### Claim 47

A method comprising:
providing instructions to advance a catheter assembly with at least two heat transfer elements into a vasculature of a patient;
providing instructions to supply a heat exchange fluid to the heat transfer elements; and
providing instructions to use at least one exit port in the distal portion of the catheter assembly to infuse medicament into the patient and/or to withdraw fluid from the patient.

### Claim 48 (depends on 47)

The method of claim 47, further comprising:
providing instructions to use a through lumen within the catheter assembly extending to the distal portion of the catheter assembly to establish communication through the assembly from the distal portion of said catheter assembly, the exit port being in communication with the through lumen to establish a path for communication from outside the assembly, through the exit port, and into the through lumen.

### Claim 49 (depends on 47)

The method of claim 47, comprising establishing communication between the supply lumen and at least one of the heat transfer elements by at least one input port and fluid communication is established between the supply lumen and at least one of the heat transfer elements by at least one output port, the output port being larger than the input port.

### Claim 50 (depends on 47)

The method of claim 47, further comprising providing instructions to affix a patient anchor on the assembly to a patient's skin.