JP2005514085A5

JP2005514085A5 -

Info

Publication number: JP2005514085A5
Application number: JP2003555308A
Authority: JP
Filing date: 2002-12-12
Publication date: 2005-12-22

Claims

An ambulatory thermotherapy system having a closed-loop fluid circulation path configured to perform thermotherapy on a patient comprising:
(A) a portable control console configured to control a thermotherapy procedure on a patient, the console having a cassette mounting area;
Power supply,
A controller functionally associated with the power source;
A pump functionally associated with the controller;
In operation, the pump is configured to circulate fluid through a closed loop circulation path to provide a desired thermotherapy to the patient; and
(B) a cassette having a size and configuration that is separably mounted in the console mounting region of the console, the cassette containing a portion of the closed loop circulation path;
(C) a graphic display unit arranged at the front of the console;
Have
The system is configured to substantially continuously circulate a small amount of liquid in the closed loop circulation path during operation.

Further comprising a length of flexible conduit, a portion of which is retained in the cassette, the length of the conduit forming part of the closed loop circulation path;
The system of claim 1, wherein a portion of the conduit held in the cassette is configured to interface with the pump when the cassette is attached to the console.

The cassette has a substantially rigid solid with a peripheral edge;
The conduit extends from the peripheral edge of the cassette continuously out of the cassette and out beyond the peripheral edge of the cassette with an intermediate portion of the flexible conduit in the cassette. 2. Hold in the cassette so as to define a portion of the closed loop circulation path that provides an externally accessible portion and then enters the peripheral edge of the cassette again. System.

The length of the flexible conduit has a suction conduit and a drain tube for circulating liquid in the closed loop flow path, the system comprising a circulating liquid suction tube, a circulating liquid drain tube, and the catheter A treatment catheter having an inflatable treatment balloon in fluid communication with the inhalation tube and the drain tube;
The length of the flexible conduit and the catheter are configured to connect the therapeutic catheter inhalation tube configured to connect to the inhalation conduit, and the therapeutic catheter drain tube configured to connect to the drainage tube. 4. The system of claim 3, wherein a closed loop circulating flow path is defined to allow the fluid to circulate in the closed loop circulating flow path.

A large amount of liquid in the circulation flow path;
A heater held in the cassette functionally associated with the liquid in the circulating flow path;
A pressure sensor mounted on the cassette and functionally associated with the liquid in the circulating flow path;
The system of claim 4, comprising: a pressure regulator functionally associated with the pressure sensor in the cassette, the system circulation flow path, and the controller in the console.

The console controller
(A) Activating the pump, the heater, the pressure sensor, and the pressure regulator to substantially continuously circulate the liquid heated to a predetermined temperature through the circulation flow path during operation. ,
(B) during operation, automatically adjusting the pressure in the circulating flow path to a predetermined pressure level so that the system maintains at least one selected operating pressure;
(C) receiving user input to select the desired thermotherapy;
The system of claim 5, comprising computer program code for:

The computer program code further comprises code for adjusting an operating pressure in the circulating flow path to a predetermined uniform and / or adjustable pressure associated with the selected thermotherapy. System.

The system of claim 1, further comprising means for inhibiting reuse of the cassette by automatically deactivating and / or destroying operational components in the cassette at the end of a thermal therapy procedure.

The system of claim 2, wherein the console comprises a plurality of infrared sensors configured to optically communicate with conduits in the cassette when the cassette is mounted on the console.

The system of claim 4, wherein the catheter and the cassette are configured as a single use disposable device.

The system of claim 1, wherein the cassette is a substantially rigid solid that is separably secured to the console during operation.

The console controller measures the duration of treatment performed by the system and automatically deflates the treatment balloon before the clinician pulls the catheter out of the patient's body at the end of thermotherapy 5. The system of claim 4, comprising computer program code for instructing.

The system of claim 5, wherein the console controller has computer program code for monitoring the operation of the pump and the heater and generating a warning sound when an abnormal operation is detected.

The console has opposing front and rear portions;
The portion of the externally accessible conduit in the cassette extends out of the cassette body and has a closed curve shape, the curve shape having a size and configuration that engages the pump at the front of the console;
The system of claim 3, wherein the console includes a sensor that detects when a portion of the externally accessible conduit extending from the cassette is improperly aligned with the pump.

A closed-loop circulating fluid thermotherapy device comprising:
A portable console having a mounting area having a power interface area, the console having a controller, a pump, and a power source, wherein the power source is in electrical communication with the power interface area on the console. Console for
A cassette housing having opposing front and rear main surfaces, the rear surface having a power interface area,
The cassette housing has a size and configuration that is detachably mounted in the mounting region of the console so that the cassette power interface region engages with the console power interface region and is connected to the controller and the power source in the console. Have
The cassette holds a heating element within itself,
In use, the apparatus wherein operation of the heating element is controlled by the controller in the console.

The apparatus of claim 15, further comprising a length of a flexible conduit retained in the cassette, wherein the flexible conduit defines a portion of a contained circulating liquid flow path.

The intermediate portion of the flexible conduit retained within the cassette is configured to detachably engage the pump when the cassette is mounted to the console. Equipment .

The cassette has a substantially rigid volume with opposing upper and lower arm portions;
The intermediate portion of the flexible conduit has a curvilinear intermediate portion extending out from the rigid cassette body, and one end of the curvilinear portion exits from the upper arm portion, and is opposed to the curvilinear portion. The apparatus of claim 17, wherein the end is configured to enter the lower arm portion.

And further comprising a treatment catheter having an inflatable treatment balloon, wherein the treatment catheter is configured to be inserted into a body cavity or natural lumen of a patient,
The therapeutic catheter has separate inhalation and drainage circulation tubes configured to circulate liquid to the therapeutic balloon;
The apparatus of claim 17, wherein the therapeutic catheter is configured to be in functional communication with the cassette and in fluid communication with the conduit during use.

17. The apparatus of claim 16, wherein the console secures the cassette to the console during operation to prevent inadvertent removal during a thermotherapy procedure.

17. The apparatus of claim 16, further comprising means for automatically destroying circuit components in the cassette after completion of a therapeutic procedure and prohibiting reuse of the cassette.

A single use disposable cassette for a thermotherapy system,
A cassette housing configured to have opposing front and back surfaces, the cassette having a size and configuration that is releasably mounted to a control console that controls the operation of thermotherapy for a patient;
A pressure sensor held in the cassette;
A cylindrical heater held in the cassette and having a central liquid flow tube passing therethrough;
A temperature sensor functionally associated with the heater held in the cassette;
An externally accessible power interface connection functionally associated with the heater, the temperature sensor, and the pressure sensor;
A length of flexible conduit retained within the cassette and defining a portion of a circulating liquid flow path, wherein the length of the flexible conduit within the cassette is in communication with the heater; The length of the flexible conduit;
Having a cassette.

24. The cassette of claim 22, further comprising an insulating sleeve disposed over the heater in the cassette.

A single use disposable catheter assembly comprising:
A modular cassette housing having opposing front and rear surfaces, the cassette having a modular cassette housing containing a portion of a circulating liquid flow path;
The front is
An air bubble filtration button to selectably and controllably change the configuration of the circulating flow path of liquid flowing through the cassette;
A pressure sensor held in the cassette to connect with the circulating liquid flow path;
A pressure regulating syringe having an associated plunger held in the cassette so that it is in fluid communication with a circulating liquid flow path;
At least one infrared sensor formed on a rear surface of the cassette housing;
A pressure adjusting hole formed in a rear surface of the cassette housing near the pressure adjusting syringe, and when in the operating position, a hole into which a moving member for moving the plunger of the syringe forward and backward is inserted;
Have
The catheter assembly further includes
A therapeutic catheter configured to be inserted into a natural lumen or body cavity of a patient, having an inflatable therapeutic balloon, defining the other part of the circulating fluid flow path, A therapeutic catheter connected to a portion of the fluid circulation path held in a cassette;
A catheter assembly.

The catheter assembly of claim 24, further comprising an insulating sleeve disposed over the heater.

26. The catheter assembly of claim 25, wherein the sleeve comprises a knitted fiberglass material.