US3640283A - Disposable blood-warming container - Google Patents
Disposable blood-warming container Download PDFInfo
- Publication number
- US3640283A US3640283A US15704A US3640283DA US3640283A US 3640283 A US3640283 A US 3640283A US 15704 A US15704 A US 15704A US 3640283D A US3640283D A US 3640283DA US 3640283 A US3640283 A US 3640283A
- Authority
- US
- United States
- Prior art keywords
- container
- outlet
- drip chamber
- blood
- inlet
- 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.)
- Expired - Lifetime
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/44—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests having means for cooling or heating the devices or media
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/36—Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation ; Extra-corporeal blood circuits
- A61M1/3621—Extra-corporeal blood circuits
- A61M1/3627—Degassing devices; Buffer reservoirs; Drip chambers; Blood filters
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/36—Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation ; Extra-corporeal blood circuits
- A61M1/369—Temperature treatment
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/36—General characteristics of the apparatus related to heating or cooling
- A61M2205/3653—General characteristics of the apparatus related to heating or cooling by Joule effect, i.e. electric resistance
Definitions
- a container for adjusting the temperature of liquids such as blood flowing therethrough which comprises a plastic envelope, heat sealed to define a tortuous fluid flow conduit therein.
- the conduit has an inlet and an outlet communicating with the exterior of the container.
- the outlet communicates with the interior of a drip chamber, the end of the outlet being spaced from the walls of the drip chamber to permit liquid passing from the outlet to fall a short distance through space, to indicate the rate of liquid flow, and to separate and entrap in the drip chamber any gas bubbles present.
- the invention of this application provides means for automatically removing gas bubbles from the blood prior to administration, while simultaneously providing a flow rate indicating means in conjunction with a disposable liner which can be used with a conventional blood warmer of, for example, the electrical type or the warm water heat exchange type.
- a container or liner for adjusting the temperature of liquids such as blood flowing therethrough comprises a plastic envelope heat sealed to define a tortuous fluid flow conduit therein.
- the conduit has an inlet and an outlet communicating with the exterior of the container, the outlet communicating with the interior of a drip chamber to permit liquid passing from the outlet to fall a short distance through space.
- the inlet is spaced below the outlet in the position of use and at one end of the container, while the outlet is spaced at the other end to facilitate the bubble-free filling of the fluid flow conduit by the liquid flowing therethrough.
- the displaced air in the conduit is swept through the chamber in front of the advancing liquid and out of the exit port, until the system is filled and ready for administration to the patient.
- a pair of plastic sheets l0, 12, made of vinyl or the like, are shown laid together in side by side relationship and secured together by sets of heat seals l4, 16 to idefine a tortious fluid flow conduit 17 passing through the colntainer.
- a plurality of tortuous conduits in parallel relation can also be used, if desired.
- the container has an inlet tube 18 and an outlet tube 20 leading into respective ends of the tortuous fluid flow conduit, both the inlet and the outlet communicating with the exterior of the container.
- Outlet 20 communicates with the interior of a drip chamber 22, which is typically made of plastic tubing, heat sealed at both ends. Outlet 20 is disposed in a transverse relation to the drip chamber 22, passing through tubular outer jacket 21, and sidewall 24 of chamber 22, to prevent kinking of outlet 20.
- An advantage to this construction is that when the container is oriented in its position of use with heat sealed end 26 of drip chamber 22 pointing downward, the fluid flowingthrough last horizontal leg 28 of the tortuous fluid flow conduit tends to separate any remaining gas bubbles entrapped in the conduit or generated by heating of the liquid upwardly to the to of leg 28 and outlet 20. Then, when the lrqurd and separaied gas bubbles come to the end 30 of conduit 20, the liquid falls downwardly and tends to be further separated from the gas bubbles, which join the entrapped gas portion of the drip chamber.
- the drip chamber 22 is supported by brace 32, which is attached to both the drip chamber and plastic sheets 10 and 12.
- a liquid exit port 34 is located in heat sealed end 26 of the drip chamber, and typically carries or communicates with flexible tubing 36, which has conventional means 38 for mounting a blood administration needle thereon for administration of blood to the patient.
- mounting means 38 has a sterile covering 40, a latex supplemental injection site 42, and a roller clamp 44 for adjusting flow through tubing 36.
- Inlet l8 communicates with flexible tubing 46, which in turn connects to coupling means 48 for connection to a blood supply, such as a blood bottle or bag.
- Coupling means 48 is closed with sterile seal means 50.
- the container of this invention can be used in a blood warmer of the type disclosed in the above-cited Pins patent by sliding sealed sheets 10 and 12 into the slot of the blood warming device described therein, or it can be utilized in other types of blood warmers, such as those comprising a pair of op posed warming plates hinged to each other to swing open and closed, and having studs for mounting the container of this invention on one of the heating plates.
- tabs are provided defining holes 52 for emplacement of the container on such studs for proper positioning in such a blood warmer.
- the holes 52 and studs of such a blood warmer are arranged in an asymmetrical manner to prevent the container from being inserted in improper orientation.
- a container for adjusting the temperature of liquid flowing therethrough which comprises a plastic envelope, heat sealed to define a tortuous fluid flow conduit therein, an inlet and an outlet to said conduit communicating with the exterior of said container, a drip chamber, said outlet communicating with the interior of said drip chamber and disposed in transverse relation to said drip chamber passing through a sidewall of said chamber, the end of said outlet being spaced from the walls of said drip chamber to separate and trap in said chamber any bubbles present.
- the container of claim 4 having a single tortuous fluid flow conduit.
Abstract
A container for adjusting the temperature of liquids such as blood flowing therethrough, which comprises a plastic envelope, heat sealed to define a tortuous fluid flow conduit therein. The conduit has an inlet and an outlet communicating with the exterior of the container. The outlet communicates with the interior of a drip chamber, the end of the outlet being spaced from the walls of the drip chamber to permit liquid passing from the outlet to fall a short distance through space, to indicate the rate of liquid flow, and to separate and entrap in the drip chamber any gas bubbles present.
Description
Bhatia et a1.
[ Feb. 8, 1972 [54] DISPOSABLE BLOOD-WARMING CONTAINER [72] lnventors: Surlndar Kumar Bhatia, Evanston; Charles Rogers Memhardt, Morton Grove,
both of ill.
[73] Assignee: Baxter Laboratories, Inc., Morton Grove,
Ill.
[22] Filed: Mar. 2, 1970 21 Appl. No.: 15,104
UNITED STATES PATENTS 3,140,716 7/1964 Harrison et a1. ..l28/399 Broman ..l65/46 X Wehrli ..23/258.5
Primary Examiner-Dalton L. Truluck Attorney-Walter C. Kehm and W. Garrettson Ellis ABSTRACT A container for adjusting the temperature of liquids such as blood flowing therethrough, which comprises a plastic envelope, heat sealed to define a tortuous fluid flow conduit therein. The conduit has an inlet and an outlet communicating with the exterior of the container. The outlet communicates with the interior of a drip chamber, the end of the outlet being spaced from the walls of the drip chamber to permit liquid passing from the outlet to fall a short distance through space, to indicate the rate of liquid flow, and to separate and entrap in the drip chamber any gas bubbles present.
5 Claims, 1 Drawing Figure DISPOSABLE BLOOD-WARMING CONTAINER BACKGROUND OF THE INVENTION Between collection and administration, blood is generally kept in refrigerated condition to prolong its useful life. However, when an individual requires the administration of blood, the blood must be warmed prior to administration in order to avoid placing excessive stress upon the metabolism of the in dividual by administering cold blood.
Conventional blood warmers such as disclosed in the Pins 05. Pat. No. 3,475,590 are used with a disposable plastic blood flow liner within an electrically operated blood warming apparatus or the like. However, difficulties have been encountered in that as the blood is warmed, its capacity to retain dissolved gases is reduced, and thus gas bubbles are formed which flow along with the blood out of the warming apparatus. Also, bubbles are formed from entrapped air as conventional blood flow liners are filled. It is extremely important that these gas bubbles be removed prior to administration of the warmed blood to the patient, and typically, the blood is directly transferred from the blood warmer to the patient without further storage.
It is also important to determine the rate of blood flow through the blood warmer and the corresponding rate of blood administration to the patient.
DESCRIPTION OF THE INVENTION The invention of this application provides means for automatically removing gas bubbles from the blood prior to administration, while simultaneously providing a flow rate indicating means in conjunction with a disposable liner which can be used with a conventional blood warmer of, for example, the electrical type or the warm water heat exchange type.
In accordance with this invention, a container or liner for adjusting the temperature of liquids such as blood flowing therethrough comprises a plastic envelope heat sealed to define a tortuous fluid flow conduit therein. The conduit has an inlet and an outlet communicating with the exterior of the container, the outlet communicating with the interior of a drip chamber to permit liquid passing from the outlet to fall a short distance through space. By this, the rate of liquid flow from the blood container is indicated and an opportunity is provided for gas bubbles to be trapped in the drip chamber to prevent bubbles from being swept on into the patient.
Typically, the inlet is spaced below the outlet in the position of use and at one end of the container, while the outlet is spaced at the other end to facilitate the bubble-free filling of the fluid flow conduit by the liquid flowing therethrough. The displaced air in the conduit is swept through the chamber in front of the advancing liquid and out of the exit port, until the system is filled and ready for administration to the patient.
Referring to the drawing, a preferred embodiment of this invention is shown in plan view.
A pair of plastic sheets l0, 12, made of vinyl or the like, are shown laid together in side by side relationship and secured together by sets of heat seals l4, 16 to idefine a tortious fluid flow conduit 17 passing through the colntainer. A plurality of tortuous conduits in parallel relation can also be used, if desired. The container has an inlet tube 18 and an outlet tube 20 leading into respective ends of the tortuous fluid flow conduit, both the inlet and the outlet communicating with the exterior of the container.
Outlet 20 communicates with the interior of a drip chamber 22, which is typically made of plastic tubing, heat sealed at both ends. Outlet 20 is disposed in a transverse relation to the drip chamber 22, passing through tubular outer jacket 21, and sidewall 24 of chamber 22, to prevent kinking of outlet 20. An advantage to this construction is that when the container is oriented in its position of use with heat sealed end 26 of drip chamber 22 pointing downward, the fluid flowingthrough last horizontal leg 28 of the tortuous fluid flow conduit tends to separate any remaining gas bubbles entrapped in the conduit or generated by heating of the liquid upwardly to the to of leg 28 and outlet 20. Then, when the lrqurd and separaied gas bubbles come to the end 30 of conduit 20, the liquid falls downwardly and tends to be further separated from the gas bubbles, which join the entrapped gas portion of the drip chamber.
Typically, for the administration of one unit of blood, only a 15 to 20 cc. drip chamber needs to be used since approximately l to 2 cc. of gas are generated during the heating process, and there are only very few, if any,'bubbles of air trapped in the system during filling because of the advantageous configuration described above.
The drip chamber 22 is supported by brace 32, which is attached to both the drip chamber and plastic sheets 10 and 12. A liquid exit port 34 is located in heat sealed end 26 of the drip chamber, and typically carries or communicates with flexible tubing 36, which has conventional means 38 for mounting a blood administration needle thereon for administration of blood to the patient. In the embodiment shown, mounting means 38 has a sterile covering 40, a latex supplemental injection site 42, and a roller clamp 44 for adjusting flow through tubing 36.
Inlet l8 communicates with flexible tubing 46, which in turn connects to coupling means 48 for connection to a blood supply, such as a blood bottle or bag. Coupling means 48 is closed with sterile seal means 50.
The container of this invention can be used in a blood warmer of the type disclosed in the above-cited Pins patent by sliding sealed sheets 10 and 12 into the slot of the blood warming device described therein, or it can be utilized in other types of blood warmers, such as those comprising a pair of op posed warming plates hinged to each other to swing open and closed, and having studs for mounting the container of this invention on one of the heating plates. In the embodiment shown, tabs are provided defining holes 52 for emplacement of the container on such studs for proper positioning in such a blood warmer. The holes 52 and studs of such a blood warmer are arranged in an asymmetrical manner to prevent the container from being inserted in improper orientation.
The above description is intended for illustrative purposes only, and it is seen that many modifications of this invention can be readily made which fall within the teachings of this invention.
What is claimed is:
l. A container for adjusting the temperature of liquid flowing therethrough, which comprises a plastic envelope, heat sealed to define a tortuous fluid flow conduit therein, an inlet and an outlet to said conduit communicating with the exterior of said container, a drip chamber, said outlet communicating with the interior of said drip chamber and disposed in transverse relation to said drip chamber passing through a sidewall of said chamber, the end of said outlet being spaced from the walls of said drip chamber to separate and trap in said chamber any bubbles present.
2. The container of claim 1 in which said inlet is spaced below said outlet in position of use to facilitate the bubble-free filling of said fluid flow conduit by said liquid flowing therethrough.
3. The container of claim 2 in which said drip chamber has a liquid exit port which communicates with flexible tubing having means for mounting a blood administration needle thereon.
4. The container of claim 3 in which said inlet is in fluid communication with flexible tubing having coupling means for connection to a blood supply.
5. The container of claim 4 having a single tortuous fluid flow conduit.
Claims (5)
1. A container for adjusting the temperature of liquid flowing therethrough, which comprises a plastic envelope, heat sealed to define a tortuous fluid flow conduit therein, an inlet and an outlet to said conduit communicating with the exterior of said container, a drip chamber, said outlet communicating with the interior of said drip chamber and disposed In transverse relation to said drip chamber passing through a sidewall of said chamber, the end of said outlet being spaced from the walls of said drip chamber to separate and trap in said chamber any bubbles present.
2. The container of claim 1 in which said inlet is spaced below said outlet in position of use to facilitate the bubble-free filling of said fluid flow conduit by said liquid flowing therethrough.
3. The container of claim 2 in which said drip chamber has a liquid exit port which communicates with flexible tubing having means for mounting a blood administration needle thereon.
4. The container of claim 3 in which said inlet is in fluid communication with flexible tubing having coupling means for connection to a blood supply.
5. The container of claim 4 having a single tortuous fluid flow conduit.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US1570470A | 1970-03-02 | 1970-03-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3640283A true US3640283A (en) | 1972-02-08 |
Family
ID=21773044
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US15704A Expired - Lifetime US3640283A (en) | 1970-03-02 | 1970-03-02 | Disposable blood-warming container |
Country Status (7)
Country | Link |
---|---|
US (1) | US3640283A (en) |
JP (1) | JPS5341476B1 (en) |
BE (1) | BE763362A (en) |
CA (1) | CA953593A (en) |
DE (1) | DE2108956C2 (en) |
FR (1) | FR2084013A5 (en) |
GB (1) | GB1327334A (en) |
Cited By (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3731731A (en) * | 1970-05-14 | 1973-05-08 | Polystan Ved F Kyusgaard | Temperature control means for blood and the like fluids |
EP0082312A1 (en) * | 1981-11-17 | 1983-06-29 | Gaelico, Gallega De Electronica Instrumentos Y Comunicaciones | Automatic equipment for blood transfusion and fluid-therapy |
US4580547A (en) * | 1984-06-04 | 1986-04-08 | Kapralis Imants P | Flexible heat pack containing super cooled salt solution |
US4646815A (en) * | 1983-12-23 | 1987-03-03 | Matsushita Electric Works, Ltd. | Heat exchange mat |
EP0363516A1 (en) * | 1988-10-14 | 1990-04-18 | Becton, Dickinson and Company | Thermoelectric chiller and automatic syringue |
US4997031A (en) * | 1987-11-17 | 1991-03-05 | Shinwa Sangyo Company, Ltd. | Heat exchanger for cooling tower |
US5245693A (en) * | 1991-03-15 | 1993-09-14 | In-Touch Products Co. | Parenteral fluid warmer apparatus and disposable cassette utilizing thin, flexible heat-exchange membrane |
US5381510A (en) * | 1991-03-15 | 1995-01-10 | In-Touch Products Co. | In-line fluid heating apparatus with gradation of heat energy from inlet to outlet |
US5846224A (en) * | 1996-10-01 | 1998-12-08 | Baxter International Inc. | Container for use with blood warming apparatus |
US6047108A (en) * | 1996-10-01 | 2000-04-04 | Baxter International Inc. | Blood warming apparatus |
US6175688B1 (en) | 1998-07-10 | 2001-01-16 | Belmont Instrument Corporation | Wearable intravenous fluid heater |
US20020193739A1 (en) * | 1999-10-08 | 2002-12-19 | Augustine Scott D. | Intravenous fluid warming cassette with stiffening member and integral handle |
US6539172B2 (en) | 2001-01-31 | 2003-03-25 | Kabushiki Kaisha Sanko | Fluid heating device and cartridge for the same |
US20070242934A1 (en) * | 2003-03-25 | 2007-10-18 | Arizant Healthcare Inc. | Fluid warming cassette and system capable of operation under negative pressure |
US7316666B1 (en) | 2004-04-12 | 2008-01-08 | Arizant Healthcare Inc. | Fluid warming cassette with rails and a stiffening member |
US20080031773A1 (en) * | 2006-08-03 | 2008-02-07 | Terumo Cardiovascular Systems Corporation | Thermoelectric temperature control for extracorporeal blood circuit |
US9737672B2 (en) | 2007-08-07 | 2017-08-22 | Belmont Instrument Corporation | Hyperthermia, system, method, and components |
USD805648S1 (en) * | 2014-08-20 | 2017-12-19 | Therapearl | Thermal pack |
US10137257B2 (en) | 2016-11-30 | 2018-11-27 | Belmont Instrument, Llc | Slack-time heating system for blood and fluid warming |
US10485936B2 (en) | 2016-11-30 | 2019-11-26 | Belmont Instrument, Llc | Rapid infuser with advantageous flow path for blood and fluid warming |
US10507292B2 (en) | 2016-11-30 | 2019-12-17 | Belmont Instrument, Llc | Rapid infuser with vacuum release valve |
US11000407B2 (en) | 2007-08-07 | 2021-05-11 | Belmont Instrument, Llc | Hyperthermia, system, method, and components |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3853479A (en) * | 1972-06-23 | 1974-12-10 | Sherwood Medical Ind Inc | Blood oxygenating device with heat exchanger |
DD206626A3 (en) * | 1981-12-15 | 1984-02-01 | Christoph Drechsler | BLOOD TREATMENT TRAIN IN A BLACK-WATER BAG |
US4653577A (en) * | 1986-01-23 | 1987-03-31 | Shiley, Inc. | Unitary heat exchanger and debubbler for a liquid |
NL8701233A (en) * | 1987-05-22 | 1988-12-16 | Medistad Holland | BLOOD HEATER. |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2887107A (en) * | 1953-07-07 | 1959-05-19 | Wehrli Federico | Means for treatment of blood with oxygen or ozone and ultraviolet light |
US3103928A (en) * | 1960-11-14 | 1963-09-17 | Cyrus R Broman | Flow device |
US3140716A (en) * | 1961-06-26 | 1964-07-14 | Baxter Laboratories Inc | Heat exchanger for blood |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3204631A (en) * | 1961-05-01 | 1965-09-07 | Louis G Fields | Blood oxygenator and pump apparatus |
DE1291857B (en) * | 1963-02-25 | 1969-04-03 | Ulrich Heinrich C | Heat exchanger for heart-lung machines for hypothermia or warming up of blood or blood substitute for the extracorporeal circulation with autologous blood |
-
1970
- 1970-03-02 US US15704A patent/US3640283A/en not_active Expired - Lifetime
-
1971
- 1971-02-09 CA CA104,887A patent/CA953593A/en not_active Expired
- 1971-02-22 JP JP893971A patent/JPS5341476B1/ja active Pending
- 1971-02-24 BE BE763362A patent/BE763362A/en not_active IP Right Cessation
- 1971-02-25 DE DE2108956A patent/DE2108956C2/en not_active Expired
- 1971-03-01 FR FR7106904A patent/FR2084013A5/fr not_active Expired
- 1971-04-19 GB GB2342671*A patent/GB1327334A/en not_active Expired
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2887107A (en) * | 1953-07-07 | 1959-05-19 | Wehrli Federico | Means for treatment of blood with oxygen or ozone and ultraviolet light |
US3103928A (en) * | 1960-11-14 | 1963-09-17 | Cyrus R Broman | Flow device |
US3140716A (en) * | 1961-06-26 | 1964-07-14 | Baxter Laboratories Inc | Heat exchanger for blood |
Cited By (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3731731A (en) * | 1970-05-14 | 1973-05-08 | Polystan Ved F Kyusgaard | Temperature control means for blood and the like fluids |
EP0082312A1 (en) * | 1981-11-17 | 1983-06-29 | Gaelico, Gallega De Electronica Instrumentos Y Comunicaciones | Automatic equipment for blood transfusion and fluid-therapy |
US4646815A (en) * | 1983-12-23 | 1987-03-03 | Matsushita Electric Works, Ltd. | Heat exchange mat |
US4580547A (en) * | 1984-06-04 | 1986-04-08 | Kapralis Imants P | Flexible heat pack containing super cooled salt solution |
US4997031A (en) * | 1987-11-17 | 1991-03-05 | Shinwa Sangyo Company, Ltd. | Heat exchanger for cooling tower |
EP0363516A1 (en) * | 1988-10-14 | 1990-04-18 | Becton, Dickinson and Company | Thermoelectric chiller and automatic syringue |
US5245693A (en) * | 1991-03-15 | 1993-09-14 | In-Touch Products Co. | Parenteral fluid warmer apparatus and disposable cassette utilizing thin, flexible heat-exchange membrane |
US5381510A (en) * | 1991-03-15 | 1995-01-10 | In-Touch Products Co. | In-line fluid heating apparatus with gradation of heat energy from inlet to outlet |
US5846224A (en) * | 1996-10-01 | 1998-12-08 | Baxter International Inc. | Container for use with blood warming apparatus |
US6047108A (en) * | 1996-10-01 | 2000-04-04 | Baxter International Inc. | Blood warming apparatus |
US6175688B1 (en) | 1998-07-10 | 2001-01-16 | Belmont Instrument Corporation | Wearable intravenous fluid heater |
US6236809B1 (en) | 1998-07-10 | 2001-05-22 | Belmont Instrument Corporation | Wearable intravenous fluid heater |
US6480257B2 (en) | 1998-07-10 | 2002-11-12 | Belmont Instrument Corporation | Heat exchanger useable in wearable fluid heater |
US20020193739A1 (en) * | 1999-10-08 | 2002-12-19 | Augustine Scott D. | Intravenous fluid warming cassette with stiffening member and integral handle |
US7853131B2 (en) | 1999-10-08 | 2010-12-14 | Arizant Healthcare Inc. | Intravenous fluid warming cassette |
US7010221B2 (en) * | 1999-10-08 | 2006-03-07 | Arizant Healthcare Inc. | Intravenous fluid warming cassette with stiffening member, fluid container and key mechanism |
US20070173759A1 (en) * | 1999-10-08 | 2007-07-26 | Augustine Scott D | Intravenous fluid warming cassette with stiffening member and integral handle |
US6539172B2 (en) | 2001-01-31 | 2003-03-25 | Kabushiki Kaisha Sanko | Fluid heating device and cartridge for the same |
US20090148143A9 (en) * | 2003-03-25 | 2009-06-11 | Arizant Healthcare Inc. | Fluid warming cassette and system capable of operation under negative pressure |
US20070242934A1 (en) * | 2003-03-25 | 2007-10-18 | Arizant Healthcare Inc. | Fluid warming cassette and system capable of operation under negative pressure |
US8620149B2 (en) | 2003-03-25 | 2013-12-31 | Arizant Healthcare Inc. | Fluid warming cassette and system capable of operation under negative pressure |
US7316666B1 (en) | 2004-04-12 | 2008-01-08 | Arizant Healthcare Inc. | Fluid warming cassette with rails and a stiffening member |
US20080031773A1 (en) * | 2006-08-03 | 2008-02-07 | Terumo Cardiovascular Systems Corporation | Thermoelectric temperature control for extracorporeal blood circuit |
US7588549B2 (en) * | 2006-08-03 | 2009-09-15 | Terumo Cardiovascular Systems Corporation | Thermoelectric temperature control for extracorporeal blood circuit |
US9737672B2 (en) | 2007-08-07 | 2017-08-22 | Belmont Instrument Corporation | Hyperthermia, system, method, and components |
US11000407B2 (en) | 2007-08-07 | 2021-05-11 | Belmont Instrument, Llc | Hyperthermia, system, method, and components |
USD805648S1 (en) * | 2014-08-20 | 2017-12-19 | Therapearl | Thermal pack |
US10137257B2 (en) | 2016-11-30 | 2018-11-27 | Belmont Instrument, Llc | Slack-time heating system for blood and fluid warming |
US10485936B2 (en) | 2016-11-30 | 2019-11-26 | Belmont Instrument, Llc | Rapid infuser with advantageous flow path for blood and fluid warming |
US10507292B2 (en) | 2016-11-30 | 2019-12-17 | Belmont Instrument, Llc | Rapid infuser with vacuum release valve |
US11872382B2 (en) | 2016-11-30 | 2024-01-16 | Belmont Instrument, Llc | Rapid infuser with advantageous flow path for blood and fluid warming, and associated components, systems, and methods |
Also Published As
Publication number | Publication date |
---|---|
JPS5341476B1 (en) | 1978-11-02 |
CA953593A (en) | 1974-08-27 |
DE2108956A1 (en) | 1971-09-23 |
DE2108956C2 (en) | 1983-08-04 |
GB1327334A (en) | 1973-08-22 |
BE763362A (en) | 1971-07-16 |
FR2084013A5 (en) | 1971-12-17 |
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