EP0600945A1 - Coussinets a temperature controlee pour application sur le corps - Google Patents
Coussinets a temperature controlee pour application sur le corpsInfo
- Publication number
- EP0600945A1 EP0600945A1 EP92917109A EP92917109A EP0600945A1 EP 0600945 A1 EP0600945 A1 EP 0600945A1 EP 92917109 A EP92917109 A EP 92917109A EP 92917109 A EP92917109 A EP 92917109A EP 0600945 A1 EP0600945 A1 EP 0600945A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- temperature
- fluid
- temperature control
- pad
- control system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- 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
- A61F7/00—Heating or cooling appliances for medical or therapeutic treatment of the human body
- A61F7/02—Compresses or poultices for effecting heating or cooling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B21/00—Machines, plants or systems, using electric or magnetic effects
- F25B21/02—Machines, plants or systems, using electric or magnetic effects using Peltier effect; using Nernst-Ettinghausen effect
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- 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
- A61F7/00—Heating or cooling appliances for medical or therapeutic treatment of the human body
- A61F2007/0001—Body part
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- 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
- A61F7/00—Heating or cooling appliances for medical or therapeutic treatment of the human body
- A61F2007/0054—Heating or cooling appliances for medical or therapeutic treatment of the human body with a closed fluid circuit, e.g. hot water
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- 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
- A61F7/00—Heating or cooling appliances for medical or therapeutic treatment of the human body
- A61F2007/0054—Heating or cooling appliances for medical or therapeutic treatment of the human body with a closed fluid circuit, e.g. hot water
- A61F2007/0056—Heating or cooling appliances for medical or therapeutic treatment of the human body with a closed fluid circuit, e.g. hot water for cooling
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- 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
- A61F7/00—Heating or cooling appliances for medical or therapeutic treatment of the human body
- A61F7/007—Heating or cooling appliances for medical or therapeutic treatment of the human body characterised by electric heating
- A61F2007/0077—Details of power supply
- A61F2007/0078—Details of power supply with a battery
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- 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
- A61F7/00—Heating or cooling appliances for medical or therapeutic treatment of the human body
- A61F7/007—Heating or cooling appliances for medical or therapeutic treatment of the human body characterised by electric heating
- A61F2007/0077—Details of power supply
- A61F2007/0081—Low voltage, e.g. using transformer
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- 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
- A61F7/00—Heating or cooling appliances for medical or therapeutic treatment of the human body
- A61F2007/0086—Heating or cooling appliances for medical or therapeutic treatment of the human body with a thermostat
Definitions
- This invention relates to temperature control systems and more particularly to a light weight portable temperature control system integrating a variety of face and body pads that will conform to the various contours of the face and body to aid in the therapeutic treatment of sports injuries and other forms of trauma, to relieve post operative pain, and to control swelling, bruising and engorgement.
- the present invention effectively overcomes the above noted problems by providing a light weight portable cooler coupled to a form fitting mask or pad having the capability for precisely controlling temperatures over an extended period of time, along with the option of alternating cycles of heating and cooling.
- thermoelectric elements to effect a light weight portable cooler. These thermo electric elements or couples, heat or cool depending on the direction of the current flow through the elements (Peltier effect) .
- the cooler is precisely temperature controlled and coupled through quick disconnects to a body conforming pad for effecting the therapeutic result so desired.
- Figure 1 shows a generalized system block diagram of the instant invention
- Figure 2 shows one embodiment of a body conforming pad depicting the invention
- Figures 3a, 3b and 3c show the various views of a detailed arrangement of the serpentine fluid jacket of Figure 2;
- Figures 4-12 show various designs of the body, head and face pads as envisioned by this invention.
- FIG. 1 shows a typical system for controlling the temperature of a body pad as envisioned by this invention
- the components have been miniaturized to fit into a briefcase and at the extreme, into a small piece of luggage.
- the novelty in this invention lies in separate and distinct improvements in several components of the system and not in the specific system.
- each of the elements shown as pump 10, TE cooler 11, and Fan 13 have been improved to function as a DC driven system with a voltage converter which will allow operation of an international input power supply on either 40 to 60 cycles and 90-270 volts AC input or as a totally portable unit on battery power.
- thermo electric (TE) cooler 11 is shown to be the desired cooler in this instance, even though other coolers, such as a split cycle cooler could be used where portability and weight are not the primary concerns.
- the TE cooler is well known in the art and essentially consists of an arrangement of P and N-type semiconductor materials connected electrically for effecting a Peltier effect upon the circulation of current therethrough, and thermally in parallel for effecting a heat sink and a cold sink, in which instance the cooler may be utilized as either a heater or cooler in accordance with the direction of current flow.
- a heat exchanger 12 and a fan 13 The exchanger is so coupled to the cooler that upon directing the air flow from the fan thereacross, the heat laden air is removed.
- the temperature controller 14 has been refined and made programmable for minute adjustment of the temperature of the liquid flowing through the system with temperature control to +2° F or better.
- Several fluids may be used, but one of the most desirable fluids has been found to be a mixture of 80% de-ionized distilled water and 20% propylene glycol.
- the liquid exchanger 15 is also coupled to the TE cooler 11 in such a manner that the liquid flowing through the system is precisely controlled in accordance with the temperature setting of a microprocessor controller 14.
- the microprocessor controller also can automatically provide a cooling and heating cycle for sports injuries. It can be programmed, for example, to provide desired periods of cooling and heating.
- the microprocessor is integrated into the temperature controller 14 and may be operated manually or in an automatic mode.
- the user may set the desired fluid temperature. This regulates the power supply to control the current flow through the TE cooler 11 of Figure 1 and is automatically adjusted to meet the temperature setting.
- the user merely sets a temperature cycle to be observed. For example, the user can have the temperature set at a low (cool) setting for a predetermined period of time followed by a higher (hot) temperature setting for another predetermined period. This cycle can continue and be repeated indefinitely.
- An extremely important feature of this invention is the therapy pad 16 which is discussed in further detail hereinafter. Pad 16 is connected in the system with two sets of quick disconnects, one shown as 17, being a coupling to the liquid heat exchanger 15 and the other being 18, which is coupled to the pump 10, for return of the fluid.
- the quick disconnects allow a pad, which is precharged with liquid, to be quickly connected and disconnected to the portable cooling machine. Eventhough the cooler as shown in Figure 1 shows a single therapy pad 16, the design allows for multiple ports for treating several body parts simultaneously and even at different temperatures.
- the therapy____pad 16 represents a significant improvement over the treatment pads described in U.S. Patents 4,114,620, Moore et al and 3,867,939, Moore et al. Both patents teach the use of laminated plastic film panels defining a passage therebetween for circulating a fluid to effect a heat transfer between the pad and a patient. Such pads could be used in the instant case but fail to provide the body conforming adaptability of the instant invention.
- the gel layer 20 actually represents an alternative embodiment of this invention and is shown sandwiched between a sterile pad shown as layer 21 contacting the body and a layer of fluid carrying conduits shown as layer 22 compose of flexible serpentine fluid conduit passageways, more clearly shown in Figure 3b.
- the gel 20 is a soft readily moldable material having a good temperature conducting characteristic such that the entire cooled or heated area maintains an even temperature gradient and as such, maintains a more constant temperature at the point of treatment.
- a thermal layer 23 insulates the pad from the outside environment in order to maintain a constant temperature at the point of contact with the body.
- This layer 23 may take various forms but in the preferred embodiment it is envisioned as one or more layers of material, such as polyvinylchloride, of a thickness of approximately 0.008 mil, having an air pocket to provide flexibility and good insulative qualities.
- the body pad may take the form of the area being treated and may be of any reasonable size from that of a small pad to treat a specific joint or a large body pad to treat all or a large portion of the body.
- Layer 21 of the pad may be fabricated as a sterile disposable pad, such as polyproplene, or as a removable and reusable pad which is durable and capable of being sterilized repeatedly. This layer 21 may be affixed to the cooling pad by various techniques, one being by use of Velcro strips to allow for ease of replacement.
- the pad shown in Figure 2 is by way of representation only and may be fabricated of multiple layers to meet the particular need. Specifically designed body pads, such as face masks, and other body conforming designs are envisioned as applications of this invention.
- the quick disconnects 17 and 18 which are used for ease of coupling and decoupling the pad. 7_.he fluid flow lines are designed such that the pad bends around the body contour with the flow lines parallel to the pad bend and are preferably fabricated of a polyvinylchloride material. This will enable the pressurized fluid within the lines to conform to the body port without crimping the flow.
- the quick disconnects 17 and 18 are located as far apart as possible on the pad to maintain as even a temperature across the pad as possible.
- strips 30 and 31 are shown as VELCRO strips whereby the pad may be securely attached to a body part being treated by fastening the strap, also having a VELCRO strip 32 shown in Figure 3b around the body part to mate the respective VELCRO strips 30 and 31 to the strip 32.
- Various types of pads are shown in Figures 4 through 12. The pads are designed for specific areas of the body and are shown for illustrative purposes only. They do not show the required quick disconnects or specific attachment means as exemplified in the basic design of Figures 3a, 3b and 3c. In Figures 4 a, b, c, d, e, and f, a universal pad is shown adapted to the knee, elbow, arm, thigh, shin and torso, respectively.
- Figures 5 a, b and c show the application of the pad as a headband and Figure 6a shows the pad designed as a sinus mask.
- Figure 6b shows a face mask which is configured to conform to ones face for cosmetic surgery or facial injury recuperation. The mask may be held securely in place by adjustable straps attached thereto for coupling in a comfortable arrangement around the head.
- Figure 7 is designed to show the pad as conforming to the head as a chemo cap to reduce the loss of hair as a result of chemo therapy.
- Figures 8 a and b show shoulder and hip pads while Figure 9 shows a collar pad and Figure 10 shows the use as a wrist band for carpol tunnel, fatigue and sports injuries.
- Figures 11 a, b, and c show uses as back, neck and seat pads while Figures 12 a, b, and c show applications to the finger, thumb and toe. While this invention has been described in terms of specific applications to various parts of the human body, the representations have been made for illustrative purposes only and other, as well as more varied uses, may be made thereof, such as in the treatment of animals in the practice of veterinary.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Heart & Thoracic Surgery (AREA)
- Biomedical Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Thermotherapy And Cooling Therapy Devices (AREA)
Abstract
Un système portatif léger pour contrôler la température comprend des coussinets médicaux jetables (16) destinés à s'adapter sur des parties choisies du corps. Un microprocesseur programmable (14) est prévu pour la sélection du traitement thermique et de sa durée. Les coussinets comportent des serpentins internes pour la circulation de fluide et un dispositif de déconnexion rapide (17, 18). Un refroidisseur (11) avec un échangeur thermique (15) et une pompe (10) pour faire circuler le fluide dans le système sont également prévus.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002116121A CA2116121A1 (fr) | 1992-06-26 | 1992-06-26 | Plaquettes chauffantes a temperature reglable pour application sur le corps |
PCT/US1992/005332 WO1994000086A1 (fr) | 1992-06-26 | 1992-06-26 | Coussinets a temperature controlee pour application sur le corps |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0600945A1 true EP0600945A1 (fr) | 1994-06-15 |
EP0600945A4 EP0600945A4 (fr) | 1995-01-11 |
Family
ID=4152946
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP92917109A Withdrawn EP0600945A4 (fr) | 1992-06-26 | 1992-06-26 | Coussinets a temperature controlee pour application sur le corps. |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0600945A4 (fr) |
AU (1) | AU2425692A (fr) |
CA (1) | CA2116121A1 (fr) |
-
1992
- 1992-06-26 EP EP92917109A patent/EP0600945A4/fr not_active Withdrawn
- 1992-06-26 CA CA002116121A patent/CA2116121A1/fr not_active Abandoned
- 1992-06-26 AU AU24256/92A patent/AU2425692A/en not_active Abandoned
Non-Patent Citations (2)
Title |
---|
No further relevant documents disclosed * |
See also references of WO9400086A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP0600945A4 (fr) | 1995-01-11 |
AU2425692A (en) | 1994-01-24 |
CA2116121A1 (fr) | 1994-01-06 |
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Legal Events
Date | Code | Title | Description |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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17P | Request for examination filed |
Effective date: 19940223 |
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STAA | Information on the status of an ep patent application or granted ep patent |
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18D | Application deemed to be withdrawn |
Effective date: 19960103 |