GB1422445A - Cryogenic surgical apparatus - Google Patents
Cryogenic surgical apparatusInfo
- Publication number
- GB1422445A GB1422445A GB1526573A GB1526573A GB1422445A GB 1422445 A GB1422445 A GB 1422445A GB 1526573 A GB1526573 A GB 1526573A GB 1526573 A GB1526573 A GB 1526573A GB 1422445 A GB1422445 A GB 1422445A
- Authority
- GB
- United Kingdom
- Prior art keywords
- gas
- chamber
- tube
- sleeve
- exit
- 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
Links
- 239000007789 gas Substances 0.000 abstract 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract 3
- 238000001816 cooling Methods 0.000 abstract 2
- 239000007788 liquid Substances 0.000 abstract 2
- 238000001356 surgical procedure Methods 0.000 abstract 2
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 230000001186 cumulative effect Effects 0.000 abstract 1
- 229910001873 dinitrogen Inorganic materials 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 229910052757 nitrogen Inorganic materials 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/02—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by cooling, e.g. cryogenic techniques
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/17—Metallic particles coated with metal
-
- 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
- F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
- F25B9/02—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point using Joule-Thompson effect; using vortex effect
-
- 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
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
- F25J1/02—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process
- F25J1/0243—Start-up or control of the process; Details of the apparatus used; Details of the refrigerant compression system used
- F25J1/0257—Construction and layout of liquefaction equipments, e.g. valves, machines
- F25J1/0275—Construction and layout of liquefaction equipments, e.g. valves, machines adapted for special use of the liquefaction unit, e.g. portable or transportable devices
- F25J1/0276—Laboratory or other miniature devices
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/02—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by cooling, e.g. cryogenic techniques
- A61B2018/0231—Characteristics of handpieces or probes
- A61B2018/0262—Characteristics of handpieces or probes using a circulating cryogenic fluid
- A61B2018/0268—Characteristics of handpieces or probes using a circulating cryogenic fluid with restriction of flow
- A61B2018/0281—Characteristics of handpieces or probes using a circulating cryogenic fluid with restriction of flow using a tortuous path, e.g. formed by fins or ribs
- A61B2018/0287—Characteristics of handpieces or probes using a circulating cryogenic fluid with restriction of flow using a tortuous path, e.g. formed by fins or ribs the fluid flowing through a long thin tube with spiral shape
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Thermal Sciences (AREA)
- Public Health (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Veterinary Medicine (AREA)
- Otolaryngology (AREA)
- Molecular Biology (AREA)
- Medical Informatics (AREA)
- Heart & Thoracic Surgery (AREA)
- Clinical Laboratory Science (AREA)
- Surgical Instruments (AREA)
- Thermotherapy And Cooling Therapy Devices (AREA)
Abstract
1422445 Cryogenic instruments BENDIX CORP 29 March 1973 [29 March 1972] 15265/ 73 Heading A5R [Also in Divisions B1 and B2] An apparatus, Figure 4, for converting a gas into a liquid for use in cryogenic surgery, comprises a hollow sleeve 76 having a closed end 80 and an open end, within which sleeve is located an elongated core, one end 30 of which defines, with the closed end 80 of the sleeve, a fixed volume chamber 86, a coiled tube 46 surrounding the core and having an exit reach 72 within the chamber 86, the annular space also including thermally conductive means in thermal contact with the coiled tube; the arrangement being such that, in use, gas under pressure passing through the coiled tube 46 is throttled as it enters the chamber 86 through the exit reach 72, thereby being cooled to between -80C and -250C and liquified, an exit path for the gas from the chamber being provided between the coils of tube 46. The core and sleeve 76 are held by a member 32 having radial fingers 40. Gas, e.g. nitrogen, is supplied from a source 10 by way of a valve 12, a pressure gauge 18, and a drier 20 to the tube 46 by way of an entrance reach 48. At the other end of the tube the gas passes to the exit reach 72 and emerges, cooled, from a nozzle 98, into the chamber 86. The exit from the chamber is through the space between the convolutions of the tube 46. Conductive granular particles 99 fill the space 100. The cooled gas passing round the tube 46 pre-cools the gas within the tube, so that cumulative cooling takes place until the gas liquifies. Nitrogen gas is preferred, and liquifies at about -196C, cooling the end 80 of the sleeve sufficiently for it to be used for cryogenic surgery. The temperature of chamber 86 is kept within a given range by a regulator using bimetallic strips [see Divisions B-B2]. The liquid may be absorbed by material in the chamber 86, so that the apparatus may be turned away from the vertical. An insulating coating 92 enables the instrument to be hand-held to operate with the rounded end 80 of sleeve 76.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US23908872A | 1972-03-29 | 1972-03-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1422445A true GB1422445A (en) | 1976-01-28 |
Family
ID=22900552
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1526573A Expired GB1422445A (en) | 1972-03-29 | 1973-03-29 | Cryogenic surgical apparatus |
Country Status (3)
Country | Link |
---|---|
US (1) | US3800552A (en) |
CA (1) | CA989632A (en) |
GB (1) | GB1422445A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0608927A3 (en) * | 1993-01-25 | 1995-02-08 | Israel State | Fast changing heating-cooling device and method. |
EP0651308A1 (en) | 1993-11-01 | 1995-05-03 | State of Israel Ministry of Defence Raphael Armament Development Authority | Controlled cryogenic contact system |
US5603221A (en) * | 1994-06-30 | 1997-02-18 | State Of Israel, Ministry Of Defense, Rafael-Armaments Development Authority | Multiprobe surgical cryogenic apparatus |
RU2580037C2 (en) * | 2013-12-24 | 2016-04-10 | Сергей Викторович Гюнтер | Cryoprobe |
Families Citing this family (68)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3952543A (en) * | 1974-12-13 | 1976-04-27 | Hughes Aircraft Company | Quick cooling cryostat with valve utilizing Simon cooling and Joule Thompson expansion |
US4022214A (en) * | 1975-04-23 | 1977-05-10 | Robert R. Schulze | Method of treating substances in an ambient environment with a cryogenic material |
US4054037A (en) * | 1975-07-09 | 1977-10-18 | Paul C. Rhyne, Jr. | Portable apparatus for sequentiallly cooling a plurality of containers of beverages and the like |
US4028907A (en) * | 1975-12-15 | 1977-06-14 | Texas Instruments Incorporated | Adjustable-Joule-Thomson cryogenic cooler with downstream thermal compensation |
US4080802A (en) * | 1976-07-14 | 1978-03-28 | International Telephone And Telegraph Corporation | Hybrid gas cryogenic cooler |
US4166365A (en) * | 1976-10-09 | 1979-09-04 | Sanji Taneichi | Apparatus for liquefying refrigerant and generating low temperature |
US4237699A (en) * | 1979-05-23 | 1980-12-09 | Air Products And Chemicals, Inc. | Variable flow cryostat with dual orifice |
US4381652A (en) * | 1982-01-15 | 1983-05-03 | Santa Barbara Research Center | Demand flow cryostat |
FR2520131B1 (en) * | 1982-01-19 | 1985-09-20 | Telecommunications Sa | REGULATION DEVICE FOR A JOULE-THOMSON EFFECT REFRIGERATOR |
US4781033A (en) * | 1987-07-16 | 1988-11-01 | Apd Cryogenics | Heat exchanger for a fast cooldown cryostat |
FR2630535B1 (en) * | 1988-04-20 | 1990-11-02 | Air Liquide | POROUS MASS FOR A HEAT EXCHANGER AND ITS APPLICATION TO A JOULE-THOMSON COOLER |
GB2226497B (en) * | 1988-12-01 | 1992-07-01 | Spembly Medical Ltd | Cryosurgical probe |
US5324286A (en) * | 1993-01-21 | 1994-06-28 | Arthur A. Fowle, Inc. | Entrained cryogenic droplet transfer method and cryosurgical instrument |
US5433717A (en) * | 1993-03-23 | 1995-07-18 | The Regents Of The University Of California | Magnetic resonance imaging assisted cryosurgery |
US5452582A (en) * | 1994-07-06 | 1995-09-26 | Apd Cryogenics, Inc. | Cryo-probe |
US6505629B1 (en) | 1996-07-23 | 2003-01-14 | Endocare, Inc. | Cryosurgical system with protective warming feature |
US5800487A (en) * | 1996-07-23 | 1998-09-01 | Endocare, Inc. | Cryoprobe |
US6378525B1 (en) | 1998-01-29 | 2002-04-30 | American Medical Systems, Inc. | Combined cryotherapy and hyperthermia method for the treatment of airway obstruction or prostrate enlargement |
US6251105B1 (en) | 1998-03-31 | 2001-06-26 | Endocare, Inc. | Cryoprobe system |
US6936045B2 (en) | 2001-09-20 | 2005-08-30 | Endocare, Inc. | Malleable cryosurgical probe |
US6767346B2 (en) | 2001-09-20 | 2004-07-27 | Endocare, Inc. | Cryosurgical probe with bellows shaft |
MXPA05007622A (en) | 2003-01-15 | 2006-02-22 | Cryodynamics Llc | Cryotherapy probe and system. |
US7608071B2 (en) | 2003-06-25 | 2009-10-27 | Endocare, Inc. | Cryosurgical probe with adjustable sliding apparatus |
US7207985B2 (en) * | 2003-06-25 | 2007-04-24 | Endocare, Inc. | Detachable cryosurgical probe |
US7381207B2 (en) | 2003-06-25 | 2008-06-03 | Endocare, Inc. | Quick disconnect assembly having a finger lock assembly |
US7189228B2 (en) * | 2003-06-25 | 2007-03-13 | Endocare, Inc. | Detachable cryosurgical probe with breakaway handle |
US7160291B2 (en) | 2003-06-25 | 2007-01-09 | Endocare, Inc. | Detachable cryosurgical probe |
US7347859B2 (en) * | 2003-12-18 | 2008-03-25 | Boston Scientific, Scimed, Inc. | Tissue treatment system and method for tissue perfusion using feedback control |
US20070016180A1 (en) * | 2004-04-29 | 2007-01-18 | Lee Fred T Jr | Microwave surgical device |
US7244254B2 (en) * | 2004-04-29 | 2007-07-17 | Micrablate | Air-core microwave ablation antennas |
US20060276781A1 (en) * | 2004-04-29 | 2006-12-07 | Van Der Weide Daniel W | Cannula cooling and positioning device |
US20070016181A1 (en) * | 2004-04-29 | 2007-01-18 | Van Der Weide Daniel W | Microwave tissue resection tool |
US7467015B2 (en) * | 2004-04-29 | 2008-12-16 | Neuwave Medical, Inc. | Segmented catheter for tissue ablation |
US20070055224A1 (en) * | 2004-04-29 | 2007-03-08 | Lee Fred T Jr | Intralumenal microwave device |
US20070244474A1 (en) * | 2006-04-18 | 2007-10-18 | Sanarus Medical, Inc. | Cryosurgical system |
EP1998698B1 (en) | 2006-03-24 | 2020-12-23 | Neuwave Medical, Inc. | Transmission line with heat transfer ability |
WO2007112102A1 (en) * | 2006-03-24 | 2007-10-04 | Micrablate | Center fed dipole for use with tissue ablation systems, devices, and methods |
US11389235B2 (en) * | 2006-07-14 | 2022-07-19 | Neuwave Medical, Inc. | Energy delivery systems and uses thereof |
US10376314B2 (en) | 2006-07-14 | 2019-08-13 | Neuwave Medical, Inc. | Energy delivery systems and uses thereof |
CA2659261C (en) * | 2006-07-28 | 2017-03-07 | Centre Hospitalier Universitaire De Quebec | Probe, sleeve, system, method and kit for performing percutaneous thermotherapy |
WO2008029408A1 (en) * | 2006-09-08 | 2008-03-13 | Arbel Medical Ltd. | Method and device for combined treatment |
WO2008087649A1 (en) * | 2007-01-19 | 2008-07-24 | Arbel Medical Ltd. | Thermally insulated needles for dermatological applications |
US20100162730A1 (en) * | 2007-06-14 | 2010-07-01 | Arbel Medical Ltd. | Siphon for delivery of liquid cryogen from dewar flask |
US20100324546A1 (en) * | 2007-07-09 | 2010-12-23 | Alexander Levin | Cryosheath |
WO2009066292A1 (en) * | 2007-11-21 | 2009-05-28 | Arbel Medical Ltd. | Pumping unit for delivery of liquid medium from a vessel |
US20110015624A1 (en) * | 2008-01-15 | 2011-01-20 | Icecure Medical Ltd. | Cryosurgical instrument insulating system |
EP2303168A1 (en) * | 2008-04-16 | 2011-04-06 | Arbel Medical Ltd. | Cryosurgical instrument with enhanced heat exchange |
US20100281917A1 (en) * | 2008-11-05 | 2010-11-11 | Alexander Levin | Apparatus and Method for Condensing Contaminants for a Cryogenic System |
US7967814B2 (en) | 2009-02-05 | 2011-06-28 | Icecure Medical Ltd. | Cryoprobe with vibrating mechanism |
WO2010105158A1 (en) * | 2009-03-12 | 2010-09-16 | Icecure Medical Ltd. | Combined cryotherapy and brachytherapy device and method |
US20100305439A1 (en) * | 2009-05-27 | 2010-12-02 | Eyal Shai | Device and Method for Three-Dimensional Guidance and Three-Dimensional Monitoring of Cryoablation |
ES2864688T3 (en) | 2009-07-28 | 2021-10-14 | Neuwave Medical Inc | Ablation system |
US7967815B1 (en) | 2010-03-25 | 2011-06-28 | Icecure Medical Ltd. | Cryosurgical instrument with enhanced heat transfer |
CN103025262B (en) | 2010-05-03 | 2019-12-17 | 纽韦弗医疗设备公司 | energy delivery system |
US7938822B1 (en) | 2010-05-12 | 2011-05-10 | Icecure Medical Ltd. | Heating and cooling of cryosurgical instrument using a single cryogen |
US8080005B1 (en) | 2010-06-10 | 2011-12-20 | Icecure Medical Ltd. | Closed loop cryosurgical pressure and flow regulated system |
WO2015138010A1 (en) | 2014-03-11 | 2015-09-17 | Icecure Medical Ltd. | Phase separation of cryogen in cryosurgical instrument |
US9039689B2 (en) | 2011-05-11 | 2015-05-26 | Icecure Medical Ltd. | Phase separation of cryogen in cryosurgical instrument |
US8709005B2 (en) | 2011-05-11 | 2014-04-29 | Icecure Medical Ltd. | Coiled heat exchanger for cryosurgical instrument |
EP2793726B1 (en) | 2011-12-21 | 2020-09-30 | Neuwave Medical, Inc. | Energy delivery systems |
CA2861116A1 (en) * | 2012-01-13 | 2013-07-18 | Myoscience, Inc. | Cryogenic probe filtration system |
JP6857187B2 (en) | 2015-10-26 | 2021-04-14 | ニューウェーブ メディカル, インコーポレイテッドNeuwave Medical, Inc. | Energy supply system and its use |
KR102368115B1 (en) | 2016-04-15 | 2022-03-03 | 뉴웨이브 메디컬, 인코포레이티드 | Systems for energy transfer |
US10598409B2 (en) * | 2016-12-18 | 2020-03-24 | Frostime LLC | Portable instant cooling system with controlled temperature obtained through timed-release liquid or gaseous CO2 coolant for general refrigeration use in mobile and stationary containers |
US11672596B2 (en) | 2018-02-26 | 2023-06-13 | Neuwave Medical, Inc. | Energy delivery devices with flexible and adjustable tips |
BR112020023881A2 (en) * | 2018-05-21 | 2021-02-09 | Frostime, Llc | portable instant cooling system with controlled temperature |
US11832879B2 (en) | 2019-03-08 | 2023-12-05 | Neuwave Medical, Inc. | Systems and methods for energy delivery |
US11633224B2 (en) | 2020-02-10 | 2023-04-25 | Icecure Medical Ltd. | Cryogen pump |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3298371A (en) * | 1965-02-11 | 1967-01-17 | Arnold S J Lee | Freezing probe for the treatment of tissue, especially in neurosurgery |
US3477434A (en) * | 1965-06-02 | 1969-11-11 | Cvi Corp | Cryosurgical apparatus |
US3427815A (en) * | 1967-01-24 | 1969-02-18 | Ventron Instr Corp | Cryogenic temperaure control |
GB1330837A (en) * | 1969-12-08 | 1973-09-19 | Hymatic Eng Co Ltd | Cooling apparatus |
US3696813A (en) * | 1971-10-06 | 1972-10-10 | Cryomedics | Cryosurgical instrument |
-
1972
- 1972-03-29 US US00239088A patent/US3800552A/en not_active Expired - Lifetime
-
1973
- 1973-02-12 CA CA163,515A patent/CA989632A/en not_active Expired
- 1973-03-29 GB GB1526573A patent/GB1422445A/en not_active Expired
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0608927A3 (en) * | 1993-01-25 | 1995-02-08 | Israel State | Fast changing heating-cooling device and method. |
US5522870A (en) * | 1993-01-25 | 1996-06-04 | State Of Israel, Ministry Of Defense, Rafael-Armaments Development Authority | Fast changing heating-cooling device and method |
US5702435A (en) * | 1993-01-25 | 1997-12-30 | State Of Israel Ministry Of Defense, Rafael-Armaments | Fast changing heating-cooling device and method |
US5891188A (en) * | 1993-01-25 | 1999-04-06 | State Of Israel, Ministry Of Defense, Rafael-Armaments Development Authority | Fast changing heating-cooling device and method |
EP0651308A1 (en) | 1993-11-01 | 1995-05-03 | State of Israel Ministry of Defence Raphael Armament Development Authority | Controlled cryogenic contact system |
US5540062A (en) * | 1993-11-01 | 1996-07-30 | State Of Israel, Ministry Of Defence, Rafael Armaments Development Authority | Controlled cryogenic contact system |
US5577387A (en) * | 1993-11-01 | 1996-11-26 | State Of Israel, Ministry Of Defence, Rafael-Armaments Development Authority | Controlled cryogenic contact system |
US5603221A (en) * | 1994-06-30 | 1997-02-18 | State Of Israel, Ministry Of Defense, Rafael-Armaments Development Authority | Multiprobe surgical cryogenic apparatus |
RU2580037C2 (en) * | 2013-12-24 | 2016-04-10 | Сергей Викторович Гюнтер | Cryoprobe |
Also Published As
Publication number | Publication date |
---|---|
CA989632A (en) | 1976-05-25 |
US3800552A (en) | 1974-04-02 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB1422445A (en) | Cryogenic surgical apparatus | |
Keyes | Thermal conductivity of gases | |
US2746264A (en) | Miniature cooling unit | |
US5119637A (en) | Ultra-high temperature stability Joule-Thomson cooler with capability to accommodate pressure variations | |
US2991633A (en) | Joule-thomson effect cooling system | |
KR830001565A (en) | Storage type low temperature refrigeration unit | |
US2671323A (en) | Apparatus for cooling well surveying instruments | |
GB1488470A (en) | Cryogenic cooling apparatus | |
GB1310766A (en) | Apparatus for the continuous cooling of objects to temperatures below 2.18k | |
GB1411758A (en) | Cryogenic refrigeration system | |
GB1108905A (en) | Cryosurgical devices | |
ES8305604A1 (en) | Process for delivering liquid cryogen. | |
US2429474A (en) | Apparatus for determining the vapor content of a gas | |
US3415078A (en) | Infrared detector cooler | |
GB1512991A (en) | Cryosurgical probe | |
US3824836A (en) | Gas permeator | |
US4831846A (en) | Low temperature cryoprobe | |
US4373357A (en) | Cryogenic cooling apparatus | |
Venart | A simple radial heat flow apparatus for fluid thermal conductivity measurements | |
US4381652A (en) | Demand flow cryostat | |
US3515001A (en) | Instrument for measuring the adiabatic saturation temperature (thermodynamic wet-bulb temperature) of a vapor-gas mixture | |
US3780564A (en) | Flue gas dew point temperature transducer | |
Hansen et al. | A gas-flow system for control of the temperature of an electron paramagnetic resonance sample at temperatures between 80 and 273 degrees Kelvin | |
MX9206021A (en) | LIQUID METAL ATOMIZATION SYSTEM AND METHOD | |
Zhu et al. | Thermal conductivity and heat capacity study of a densified a-SiO2 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |