US20040238023A1 - Multi-point polymer encapsulated micro-thermocouple - Google Patents
Multi-point polymer encapsulated micro-thermocouple Download PDFInfo
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- US20040238023A1 US20040238023A1 US10/801,496 US80149604A US2004238023A1 US 20040238023 A1 US20040238023 A1 US 20040238023A1 US 80149604 A US80149604 A US 80149604A US 2004238023 A1 US2004238023 A1 US 2004238023A1
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- thermocouple
- junction
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/02—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using thermoelectric elements, e.g. thermocouples
Definitions
- thermocouple devices and in particular, to a thermocouple device produced by encapsulating a thermocouple junction with a heat-shrinkable polymer coating.
- thermocouple is a bimetal junction that provides a voltage proportional to temperature. Temperature probes are often formed using thermocouples. Many applications requiring temperature probes require extremely small size.
- thermocouple device of extremely small size.
- thermocouple device of extremely small size.
- the thermocouple is produced by removing insulation from distal ends of two thermocouple conductors and then forming a thermocouple junction at the distal ends of the two thermocouple conductors.
- a tube of heat shrinkable polymer material is placed over the thermocouple junction.
- the entire thermocouple junction is then sealed by heating and melting the polymer material.
- thermocouple and seal fall within a reproducible confined shape, where the height of the confined shape falls within a range of about 0.003 to 0.010 inches and the width of the confined shape falls within a range of about 0.005 to 0.0110 inches.
- FIG. 1 is a drawing of one embodiment of the micro-thermocouple.
- FIG. 2 is a flowchart showing one method for forming the micro-thermocouple.
- FIG. 3 is a drawing showing fused embodiments of the micro-thermocouple.
- FIG. 4 is a drawing of an embodiment of the micro-thermocouple that comprises two thermocouple junctions.
- FIG. 5 is a drawing of an embodiment of the micro-thermocouple that comprises two thermocouple junctions at different locations along the length of the device.
- FIG. 1 shows one embodiment of a micro-thermocouple 100 .
- the thermocouple junction 130 is formed from joining conductors 120 , 122 of dissimilar metals.
- the metals comprise any of the standard metal combinations defined by the American Society of Testing and Materials (A.S.T.M.) for thermocouples.
- the size of the thermocouple conductors generally fall with a range of about 30 awg (0.010 inch diameter) to about 50 awg (0.0009 inch diameter).
- conductors 120 , 122 are joined to form a thermocouple junction 130 by soldering using lead-free solder 135 .
- conductors 120 , 122 are welded and 135 represents a welded bead or seam.
- the conductors 120 , 122 are electrically insulated with commonly used insulating material 140 such as nylon, polyurethane, or polyimide.
- a heat shrinkable polymer material is then used to form an electrically insulating seal 150 over the micro-thermocouple 100 .
- a tube is slid over the thermocouple junction.
- the tube is slid over the thermocouple junction and the seal 150 is then formed by heating the tube of polymer material to the point of melting onto and over the thermocouple joint 130 and onto the insulation 140 .
- thermocouple conductor insulation 140 provides a seal around the insulation 140 .
- the melting also forms a domed shape 155 on the end of micro-thermocouple 100 .
- This domed end 155 is advantageous if the thermocouple is used in a catheter as it results in the micro-thermocouple 100 being resistant to abrading or tearing a catheter sleeve.
- the tube of heat shrinkable polymer material is first sealed on one end by melting the end and forming the domed end before the tube is slid over the thermocouple junction. After the tube is slid over the thermocouple junction 130 , further heating and melting provides the insulating seal 150 .
- Other embodiments involve sealing the end while it is placed over the thermocouple junction 130 .
- the length ( 1 ) 160 of the resultant seal 150 is within the range of about 0.05 inches to 0.5 inches.
- the overall length (L) 165 of the micro-thermocouple 100 is within the range of about 20 inches to 78 inches.
- One embodiment of the micro-thermocouple 100 uses polyethylene terephthalate (PET) as the polymer material.
- PET polyethylene terephthalate
- FEP fluorinated ethylene propylene
- the seal 150 is moisture resistant and electrically insulating. The insulation resistance of the seal is greater than 100 Mega-ohms when measured at 50 Volts(DC).
- FIG. 1 also shows a cross section 110 of micro-thermocouple 100 .
- the width (w) 170 of the micro-thermocouple 100 falls within a range from about 0.005 inches to 0.011 inches.
- the height (h) 175 of the micro-thermocouple 100 falls within a range of about 0.003 inches to 0.01 inches.
- the micro-thermocouple can be formed within a reproducible confined shape having a height 175 less than about 0.01 inches and a width 170 less than about 0.011 inches.
- the final dimensions of the confined shape is determined in part by the gauge of the thermocouple conductors used. Providing the insulation by the technique described herein adds about 0.0005 inches to the width and height dimensions of a formed thermocouple junction.
- FIG. 2 shows a flowchart of one embodiment of a method 200 of forming micro-thermocouple 100 .
- insulation 140 is removed from a distal end of thermocouple conductors 120 , 122 .
- a thermocouple junction 130 is formed at the distal end of the conductors 120 , 122 .
- the tube of polymer material is slid over the thermocouple junction 130 .
- a seal 150 is formed over the thermocouple junction 130 by heating and melting the polymer material.
- FIG. 3 shows fused embodiments of the micro-thermocouple 100 .
- a fused thermocouple prevents the possibility of recycling or reusing the thermocouple if the micro-thermocouple 100 is used in a medical device.
- a fuse 390 is placed in a thermocouple conductor 120 between a proximal end of the conductor 120 and the thermocouple joint 130 . Exceeding the rating of the fuse breaks the electrical connection between the proximal end of conductor 120 and the thermocouple joint.
- a fuse 395 is formed by placing within the thermocouple junction 130 . Exceeding the rating of the fuse 395 across the thermocouple conductors 120 causes the device to lose the properties of a thermocouple.
- FIG. 4 is a drawing of an embodiment of micro-thermocouple 100 that is comprised of two thermocouple junctions 130 .
- the first is formed by thermocouple conductors 120 and 122
- the second is formed by thermocouple conductors 122 and 424 .
- Conductor 122 must be a different metal than conductors 120 and 424 , but conductors 120 and 424 may be the same or different metals.
- FIG. 5 is a drawing of an embodiment of micro-thermocouple 100 that is comprised of two thermocouple junctions in a different arrangement than the junctions shown in FIG. 4.
- a second thermocouple junction 530 is at a point further from the end 155 of the micro-thermocouple 100 than thermocouple junction 130 .
- Thermocouple junction 130 is comprised of thermocouple conductors 120 and 122
- thermocouple junction 530 is comprised of thermocouple conductors 122 and 424 .
- conductor 122 must be a different metal than conductors 120 and 424 , but conductors 120 and 424 may be the same or different metals.
- thermocouple junctions 130 , 530 may be the same type or may be different types.
- An electrically insulating seal 550 is formed over thermocouple junction 530 .
- the arrangement of thermocouple junction 130 , 530 in FIG. 5 provides a measurement of temperature change at multiple locations along the length of the micro-thermocouple 100 .
- This concept can be expanded to a thermocouple device having N thermocouple conductors, where N is an integer. If all thermocouple conductors are used in only one thermocouple junction pair, N/2 thermocouple junctions are created and can be placed at N/2 locations along the thermocouple device to provide temperature information at the N/2 locations.
- thermocouple conductor is used in more than one thermocouple junction it is possible to create N ⁇ 1 thermocouple junctions from N thermocouple conductors. Again, the N ⁇ 1 thermocouple conductors may be placed at N ⁇ 1 locations along the thermocouple device to provide temperature information at the N ⁇ 1 locations.
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- General Physics & Mathematics (AREA)
- Surgical Instruments (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
- Materials For Medical Uses (AREA)
Abstract
Description
- This application is a continuation-in-part of U.S. patent Ser. No. 10/391,531, filed on Mar. 17, 2003, which claims the benefit as provided under 35 U.S.C. § 119(e) to U.S. Provisional Application No. 60/366,435 filed Mar. 21, 2002, which is hereby incorporated by reference in its entirety. The application also claims benefit as provided under 35 U.S.C. § 119(e) to U.S. Provisional Application No. 60/455,617, filed on Mar. 17, 2003, which is hereby incorporated by reference in its entirety.
- This patent application relates to thermocouple devices, and in particular, to a thermocouple device produced by encapsulating a thermocouple junction with a heat-shrinkable polymer coating.
- A thermocouple is a bimetal junction that provides a voltage proportional to temperature. Temperature probes are often formed using thermocouples. Many applications requiring temperature probes require extremely small size.
- One application for extremely small temperature probes is in the medical device industry; especially for use in catheters. For example, ablation catheters are used in non-invasive treatment of heart abnormalities. The ablation catheter is able to identify abnormal tissue growth and uses heat to remove the tissue causing the additional conduction paths. Thermal feedback is required when removing the tissue to prevent blood clotting or blood boiling during the procedure. In using a temperature probe to provide this feedback, the probe must be small enough to get as near an ablation electrode as possible. Also, when used in catheters, it is desirable that a temperature probe not rupture a catheter sleeve by tearing or abrasion. Further, a probe should be electrically insulated to allow in vivo operation.
- It is apparent that uses for extremely small temperature probes beyond the medical field are possible. An extremely small probe would be useful in any field where a measurement of a localized temperature variation is desired, such as for example, the field of electronics.
- What is needed is an insulated thermocouple device of extremely small size.
- This document discusses an insulated thermocouple device of extremely small size. The thermocouple is produced by removing insulation from distal ends of two thermocouple conductors and then forming a thermocouple junction at the distal ends of the two thermocouple conductors. A tube of heat shrinkable polymer material is placed over the thermocouple junction. The entire thermocouple junction is then sealed by heating and melting the polymer material.
- The resulting thermocouple and seal fall within a reproducible confined shape, where the height of the confined shape falls within a range of about 0.003 to 0.010 inches and the width of the confined shape falls within a range of about 0.005 to 0.0110 inches.
- This summary is intended to provide an overview of the subject matter of the present application. It is not intended to provide an exclusive or exhaustive explanation of the invention. The detailed description is included to provide further information about the subject matter of the preset patent application.
- In the drawings like numerals refer to like components throughout the several views.
- FIG. 1 is a drawing of one embodiment of the micro-thermocouple.
- FIG. 2 is a flowchart showing one method for forming the micro-thermocouple.
- FIG. 3 is a drawing showing fused embodiments of the micro-thermocouple.
- FIG. 4 is a drawing of an embodiment of the micro-thermocouple that comprises two thermocouple junctions.
- FIG. 5 is a drawing of an embodiment of the micro-thermocouple that comprises two thermocouple junctions at different locations along the length of the device.
- In the following detailed description, reference is made to the accompanying drawings which form a part hereof, and specific embodiments in which the invention may be practiced are shown by way of illustration. It is to be understood that other embodiments may be used and structural changes may be made without departing from the scope of the present invention.
- As stated previously, the present application is concerned with materials and techniques used to create a sealed thermocouple of extremely small size. FIG. 1 shows one embodiment of a micro-thermocouple100. The
thermocouple junction 130 is formed from joiningconductors embodiment conductors thermocouple junction 130 by soldering using lead-free solder 135. In another embodiment,conductors thermocouple junction 130, theconductors material 140 such as nylon, polyurethane, or polyimide. A heat shrinkable polymer material is then used to form an electrically insulatingseal 150 over the micro-thermocouple 100. To create theseal 150, a tube is slid over the thermocouple junction. In one embodiment, the tube is slid over the thermocouple junction and theseal 150 is then formed by heating the tube of polymer material to the point of melting onto and over thethermocouple joint 130 and onto theinsulation 140. Melting the polymer material onto thethermocouple conductor insulation 140 provides a seal around theinsulation 140. The melting also forms adomed shape 155 on the end of micro-thermocouple 100. Thisdomed end 155 is advantageous if the thermocouple is used in a catheter as it results in the micro-thermocouple 100 being resistant to abrading or tearing a catheter sleeve. In another embodiment, the tube of heat shrinkable polymer material is first sealed on one end by melting the end and forming the domed end before the tube is slid over the thermocouple junction. After the tube is slid over thethermocouple junction 130, further heating and melting provides the insulatingseal 150. Other embodiments involve sealing the end while it is placed over thethermocouple junction 130. - The length (1) 160 of the
resultant seal 150 is within the range of about 0.05 inches to 0.5 inches. The overall length (L) 165 of the micro-thermocouple 100 is within the range of about 20 inches to 78 inches. One embodiment of the micro-thermocouple 100 uses polyethylene terephthalate (PET) as the polymer material. Another embodiment uses fluorinated ethylene propylene (FEP). Theseal 150 is moisture resistant and electrically insulating. The insulation resistance of the seal is greater than 100 Mega-ohms when measured at 50 Volts(DC). - FIG. 1 also shows a
cross section 110 of micro-thermocouple 100. The width (w) 170 of the micro-thermocouple 100 falls within a range from about 0.005 inches to 0.011 inches. The height (h) 175 of the micro-thermocouple 100 falls within a range of about 0.003 inches to 0.01 inches. Thus, it can be seen that the micro-thermocouple can be formed within a reproducible confined shape having aheight 175 less than about 0.01 inches and awidth 170 less than about 0.011 inches. The final dimensions of the confined shape is determined in part by the gauge of the thermocouple conductors used. Providing the insulation by the technique described herein adds about 0.0005 inches to the width and height dimensions of a formed thermocouple junction. - FIG. 2 shows a flowchart of one embodiment of a
method 200 of forming micro-thermocouple 100. At 210,insulation 140 is removed from a distal end ofthermocouple conductors thermocouple junction 130 is formed at the distal end of theconductors thermocouple junction 130. At 240, aseal 150 is formed over thethermocouple junction 130 by heating and melting the polymer material. - FIG. 3 shows fused embodiments of the micro-thermocouple100. A fused thermocouple prevents the possibility of recycling or reusing the thermocouple if the micro-thermocouple 100 is used in a medical device. In one embodiment a
fuse 390 is placed in athermocouple conductor 120 between a proximal end of theconductor 120 and thethermocouple joint 130. Exceeding the rating of the fuse breaks the electrical connection between the proximal end ofconductor 120 and the thermocouple joint. In another embodiment, afuse 395 is formed by placing within thethermocouple junction 130. Exceeding the rating of thefuse 395 across thethermocouple conductors 120 causes the device to lose the properties of a thermocouple. - FIG. 4 is a drawing of an embodiment of micro-thermocouple100 that is comprised of two
thermocouple junctions 130. The first is formed bythermocouple conductors thermocouple conductors Conductor 122 must be a different metal thanconductors conductors - FIG. 5 is a drawing of an embodiment of micro-thermocouple100 that is comprised of two thermocouple junctions in a different arrangement than the junctions shown in FIG. 4. In FIG. 5 a
second thermocouple junction 530 is at a point further from theend 155 of the micro-thermocouple 100 thanthermocouple junction 130.Thermocouple junction 130 is comprised ofthermocouple conductors thermocouple junction 530 is comprised ofthermocouple conductors conductor 122 must be a different metal thanconductors conductors thermocouple junctions seal 550 is formed overthermocouple junction 530. The arrangement ofthermocouple junction - Although specific examples have been illustrated and described herein, it will be appreciated by those of ordinary skill in the art that any arrangement calculated to achieve the same purpose could be substituted for the specific example shown. This application is intended to cover any adaptations or variations of the present invention. Therefore, it is intended that this invention be limited only by the claims and the equivalents shown.
Claims (26)
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US10/801,496 US20040238023A1 (en) | 2002-03-21 | 2004-03-16 | Multi-point polymer encapsulated micro-thermocouple |
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US36643502P | 2002-03-21 | 2002-03-21 | |
US45561703P | 2003-03-17 | 2003-03-17 | |
US10/391,531 US7361830B2 (en) | 2002-03-21 | 2003-03-17 | Polymer encapsulated micro-thermocouple |
US10/801,496 US20040238023A1 (en) | 2002-03-21 | 2004-03-16 | Multi-point polymer encapsulated micro-thermocouple |
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US10/391,531 Continuation-In-Part US7361830B2 (en) | 2002-03-21 | 2003-03-17 | Polymer encapsulated micro-thermocouple |
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US20040238023A1 true US20040238023A1 (en) | 2004-12-02 |
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US10/801,496 Abandoned US20040238023A1 (en) | 2002-03-21 | 2004-03-16 | Multi-point polymer encapsulated micro-thermocouple |
US12/188,901 Abandoned US20090044849A1 (en) | 2002-03-21 | 2008-08-08 | Polymer encapsulated micro-thermocouple |
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US20030209264A1 (en) * | 2002-03-21 | 2003-11-13 | Audeen Richetto | Polymer encapsulated micro-thermocouple |
US20060284722A1 (en) * | 2003-05-22 | 2006-12-21 | Pete Bernier | Flexible averaging resistance temperature detector |
US20080039739A1 (en) * | 2006-08-14 | 2008-02-14 | Buja Frederick J | System and method employing a thermocouple junction for monitoring of physiological parameters |
US20090026894A1 (en) * | 2007-07-16 | 2009-01-29 | Rtd Company | Robust stator winding temperature sensor |
US7719400B1 (en) | 2005-08-02 | 2010-05-18 | Rtd Company | Method and apparatus for flexible temperature sensor having coiled element |
US20110026562A1 (en) * | 2009-07-31 | 2011-02-03 | Rtd Company | Temperature sensor using thin film resistance temperature detector |
US9172288B2 (en) | 2012-10-16 | 2015-10-27 | Measurement Specialities, Inc. | Reinforced flexible temperature sensor |
WO2021257307A1 (en) * | 2020-06-19 | 2021-12-23 | Rosemount Inc. | Rtd degradation detection |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007000237A (en) | 2005-06-22 | 2007-01-11 | Top:Kk | Medical electrode needle device |
EP3474283A1 (en) | 2007-05-30 | 2019-04-24 | Ascensia Diabetes Care Holdings AG | Method and system for managing health data |
US8617381B2 (en) * | 2009-06-23 | 2013-12-31 | Bayer Healthcare Llc | System and apparatus for determining temperatures in a fluid analyte system |
US20120250726A1 (en) * | 2011-04-04 | 2012-10-04 | Tsi Technologies Llc | Micro-thermocouple |
US9972762B2 (en) * | 2012-08-31 | 2018-05-15 | Te Wire & Cable Llc | Thermocouple ribbon and assembly |
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Citations (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2530256A (en) * | 1945-06-09 | 1950-11-14 | Honeywell Regulator Co | Thermoelectric generator |
US2994219A (en) * | 1957-11-15 | 1961-08-01 | Pure Oil Co | Corrosion test probe |
US3049012A (en) * | 1960-03-04 | 1962-08-14 | Gienn E Daniels | Radiation compensating thermoelectric device |
US3165426A (en) * | 1962-07-30 | 1965-01-12 | Beckman Paul | Thermopile |
US3343589A (en) * | 1964-06-25 | 1967-09-26 | San Fernando Lab | Gaseous deposition method of making a thermocouple probe |
US4289553A (en) * | 1977-11-08 | 1981-09-15 | N.V. Raychem S.A. | Heat-shrinkable article |
US4419169A (en) * | 1978-11-01 | 1983-12-06 | Baxter Travenol Laboratories, Inc. | Apparatus for radiant heat sealing of balloon onto catheter shaft |
US4527909A (en) * | 1983-09-23 | 1985-07-09 | Conax Corporation | Sealed temperature probe |
US5769622A (en) * | 1995-11-15 | 1998-06-23 | Paloma Industries, Ltd. | Gas combustion apparatus |
US5833688A (en) * | 1997-02-24 | 1998-11-10 | Boston Scientific Corporation | Sensing temperature with plurality of catheter sensors |
US5906584A (en) * | 1994-07-27 | 1999-05-25 | Pierfrancesco Pavoni | Device for the invasive thermometrical measurement and for the introduction of a medicament for surface and deep hyperthermia treatments |
US5955960A (en) * | 1997-03-24 | 1999-09-21 | Jean-Luc Monnier | Tamper resistant electronic lock and method of using same |
US6078830A (en) * | 1997-10-01 | 2000-06-20 | Ep Technologies, Inc. | Molded catheter distal end assembly and process for the manufacture thereof |
US6117088A (en) * | 1998-10-06 | 2000-09-12 | Trex Medical Corporation | Panel connector for temperature gradient sensing probe |
US6162184A (en) * | 1994-06-27 | 2000-12-19 | Ep Technologies, Inc. | Systems and methods for sensing temperature within the body |
US6213995B1 (en) * | 1999-08-31 | 2001-04-10 | Phelps Dodge High Performance Conductors Of Sc And Ga, Inc. | Flexible tubing with braided signal transmission elements |
US6322559B1 (en) * | 1998-07-06 | 2001-11-27 | Vnus Medical Technologies, Inc. | Electrode catheter having coil structure |
US6354735B2 (en) * | 1999-09-14 | 2002-03-12 | General Electric Company | Thermocouple assembly |
US6440129B1 (en) * | 1998-05-05 | 2002-08-27 | Cardiac Pacemakers, Inc. | Electrode having non-joined thermocouple for providing multiple temperature-sensitive junctions |
US6547788B1 (en) * | 1997-07-08 | 2003-04-15 | Atrionx, Inc. | Medical device with sensor cooperating with expandable member |
US20030209264A1 (en) * | 2002-03-21 | 2003-11-13 | Audeen Richetto | Polymer encapsulated micro-thermocouple |
US20040114665A1 (en) * | 2002-12-12 | 2004-06-17 | Sun Park | Cantilevered thermocouple rake |
US6986746B2 (en) * | 2001-08-01 | 2006-01-17 | Thermocore Medical Systems Nv | Biased vascular temperature measuring device |
US6991370B2 (en) * | 2002-07-23 | 2006-01-31 | Kobe Steel, Ltd. | Temperature measuring apparatus of high melting point metal carbide-carbon system material thermocouple type, and method for producing the apparatus |
US7029173B2 (en) * | 2000-06-21 | 2006-04-18 | Robert Bosch Gmbh | Thermoelectric component |
US20060247726A1 (en) * | 2000-10-17 | 2006-11-02 | Asthmatx, Inc. | Control system and process for application of energy to airway walls and other mediums |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5932907B2 (en) * | 1980-11-05 | 1984-08-11 | 山里産業株式会社 | Thermocouple with temperature fuse |
US4899741A (en) * | 1987-01-14 | 1990-02-13 | Hgm Medical Laser Systems, Inc. | Laser heated probe and control system |
JP3457351B2 (en) * | 1992-09-30 | 2003-10-14 | 株式会社東芝 | Portable wireless devices |
ATE255369T1 (en) * | 1994-06-27 | 2003-12-15 | Boston Scient Ltd | SYSTEM FOR CONTROLLING TISSUE ABLATION USING TEMPERATURE SENSORS |
US5810802A (en) * | 1994-08-08 | 1998-09-22 | E.P. Technologies, Inc. | Systems and methods for controlling tissue ablation using multiple temperature sensing elements |
EP0921765B1 (en) * | 1996-03-05 | 2007-05-02 | Vnus Medical Technologies, Inc. | Vascular catheter-based system for heating tissue |
US6323413B1 (en) * | 1998-04-22 | 2001-11-27 | Hv Technologies, Inc. | Microtubing with integral thermocouple |
US6198442B1 (en) * | 1999-07-22 | 2001-03-06 | Ericsson Inc. | Multiple frequency band branch antennas for wireless communicators |
US6204826B1 (en) * | 1999-07-22 | 2001-03-20 | Ericsson Inc. | Flat dual frequency band antennas for wireless communicators |
US6184836B1 (en) * | 2000-02-08 | 2001-02-06 | Ericsson Inc. | Dual band antenna having mirror image meandering segments and wireless communicators incorporating same |
US20020048310A1 (en) * | 2000-03-07 | 2002-04-25 | Heuser Richard R. | Catheter for thermal and ultrasound evaluation of arteriosclerotic plaque |
US6268831B1 (en) * | 2000-04-04 | 2001-07-31 | Ericsson Inc. | Inverted-f antennas with multiple planar radiating elements and wireless communicators incorporating same |
US6225951B1 (en) * | 2000-06-01 | 2001-05-01 | Telefonaktiebolaget L.M. Ericsson | Antenna systems having capacitively coupled internal and retractable antennas and wireless communicators incorporating same |
EP1311188A1 (en) * | 2000-08-24 | 2003-05-21 | Volcano Therapeutics, Inc. | Thermography catheter with flexible circuit temperature sensors |
US6694181B2 (en) * | 2001-02-12 | 2004-02-17 | Scimed Life Systems, Inc. | Methods and devices for detecting vulnerable plaque |
-
2003
- 2003-03-17 US US10/391,531 patent/US7361830B2/en active Active
-
2004
- 2004-03-16 US US10/801,496 patent/US20040238023A1/en not_active Abandoned
-
2008
- 2008-08-08 US US12/188,901 patent/US20090044849A1/en not_active Abandoned
Patent Citations (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2530256A (en) * | 1945-06-09 | 1950-11-14 | Honeywell Regulator Co | Thermoelectric generator |
US2994219A (en) * | 1957-11-15 | 1961-08-01 | Pure Oil Co | Corrosion test probe |
US3049012A (en) * | 1960-03-04 | 1962-08-14 | Gienn E Daniels | Radiation compensating thermoelectric device |
US3165426A (en) * | 1962-07-30 | 1965-01-12 | Beckman Paul | Thermopile |
US3343589A (en) * | 1964-06-25 | 1967-09-26 | San Fernando Lab | Gaseous deposition method of making a thermocouple probe |
US4289553A (en) * | 1977-11-08 | 1981-09-15 | N.V. Raychem S.A. | Heat-shrinkable article |
US4419169A (en) * | 1978-11-01 | 1983-12-06 | Baxter Travenol Laboratories, Inc. | Apparatus for radiant heat sealing of balloon onto catheter shaft |
US4527909A (en) * | 1983-09-23 | 1985-07-09 | Conax Corporation | Sealed temperature probe |
US6162184A (en) * | 1994-06-27 | 2000-12-19 | Ep Technologies, Inc. | Systems and methods for sensing temperature within the body |
US5906584A (en) * | 1994-07-27 | 1999-05-25 | Pierfrancesco Pavoni | Device for the invasive thermometrical measurement and for the introduction of a medicament for surface and deep hyperthermia treatments |
US5769622A (en) * | 1995-11-15 | 1998-06-23 | Paloma Industries, Ltd. | Gas combustion apparatus |
US5833688A (en) * | 1997-02-24 | 1998-11-10 | Boston Scientific Corporation | Sensing temperature with plurality of catheter sensors |
US5955960A (en) * | 1997-03-24 | 1999-09-21 | Jean-Luc Monnier | Tamper resistant electronic lock and method of using same |
US6547788B1 (en) * | 1997-07-08 | 2003-04-15 | Atrionx, Inc. | Medical device with sensor cooperating with expandable member |
US6078830A (en) * | 1997-10-01 | 2000-06-20 | Ep Technologies, Inc. | Molded catheter distal end assembly and process for the manufacture thereof |
US6456863B1 (en) * | 1997-10-01 | 2002-09-24 | Ep Technologies, Inc. | Molded catheter distal end assembly and process for the manufacture thereof |
US6440129B1 (en) * | 1998-05-05 | 2002-08-27 | Cardiac Pacemakers, Inc. | Electrode having non-joined thermocouple for providing multiple temperature-sensitive junctions |
US6322559B1 (en) * | 1998-07-06 | 2001-11-27 | Vnus Medical Technologies, Inc. | Electrode catheter having coil structure |
US6123675A (en) * | 1998-10-06 | 2000-09-26 | Trex Medical Corporation | Temperature gradient sensing probe for monitoring hyperthermic medical treatments |
US6117088A (en) * | 1998-10-06 | 2000-09-12 | Trex Medical Corporation | Panel connector for temperature gradient sensing probe |
US6213995B1 (en) * | 1999-08-31 | 2001-04-10 | Phelps Dodge High Performance Conductors Of Sc And Ga, Inc. | Flexible tubing with braided signal transmission elements |
US6354735B2 (en) * | 1999-09-14 | 2002-03-12 | General Electric Company | Thermocouple assembly |
US7029173B2 (en) * | 2000-06-21 | 2006-04-18 | Robert Bosch Gmbh | Thermoelectric component |
US20060247726A1 (en) * | 2000-10-17 | 2006-11-02 | Asthmatx, Inc. | Control system and process for application of energy to airway walls and other mediums |
US6986746B2 (en) * | 2001-08-01 | 2006-01-17 | Thermocore Medical Systems Nv | Biased vascular temperature measuring device |
US20030209264A1 (en) * | 2002-03-21 | 2003-11-13 | Audeen Richetto | Polymer encapsulated micro-thermocouple |
US7361830B2 (en) * | 2002-03-21 | 2008-04-22 | Rtd Company | Polymer encapsulated micro-thermocouple |
US6991370B2 (en) * | 2002-07-23 | 2006-01-31 | Kobe Steel, Ltd. | Temperature measuring apparatus of high melting point metal carbide-carbon system material thermocouple type, and method for producing the apparatus |
US20040114665A1 (en) * | 2002-12-12 | 2004-06-17 | Sun Park | Cantilevered thermocouple rake |
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US20030209264A1 (en) | 2003-11-13 |
US7361830B2 (en) | 2008-04-22 |
US20090044849A1 (en) | 2009-02-19 |
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