US20060133950A1 - Method and device for disinfecting a microtome cryostat - Google Patents
Method and device for disinfecting a microtome cryostat Download PDFInfo
- Publication number
- US20060133950A1 US20060133950A1 US10/543,195 US54319505A US2006133950A1 US 20060133950 A1 US20060133950 A1 US 20060133950A1 US 54319505 A US54319505 A US 54319505A US 2006133950 A1 US2006133950 A1 US 2006133950A1
- Authority
- US
- United States
- Prior art keywords
- disinfectant
- cryostat
- microtome
- refrigerator
- chamber
- 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.)
- Abandoned
Links
- 238000000034 method Methods 0.000 title claims abstract description 30
- 230000000249 desinfective effect Effects 0.000 title claims abstract description 10
- 238000010257 thawing Methods 0.000 claims abstract description 16
- 239000000645 desinfectant Substances 0.000 claims description 74
- 238000010438 heat treatment Methods 0.000 claims description 23
- 238000001816 cooling Methods 0.000 claims description 18
- 239000007788 liquid Substances 0.000 claims description 14
- 238000002604 ultrasonography Methods 0.000 claims description 7
- 239000002699 waste material Substances 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 3
- 230000008016 vaporization Effects 0.000 claims description 3
- 238000004659 sterilization and disinfection Methods 0.000 abstract description 16
- 238000001035 drying Methods 0.000 abstract description 6
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 6
- 239000000243 solution Substances 0.000 description 4
- 239000006200 vaporizer Substances 0.000 description 4
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 3
- 239000002826 coolant Substances 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 241000078511 Microtome Species 0.000 description 2
- 239000000443 aerosol Substances 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 238000005202 decontamination Methods 0.000 description 2
- 230000003588 decontaminative effect Effects 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- RUPBZQFQVRMKDG-UHFFFAOYSA-M Didecyldimethylammonium chloride Chemical compound [Cl-].CCCCCCCCCC[N+](C)(C)CCCCCCCCCC RUPBZQFQVRMKDG-UHFFFAOYSA-M 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- SXRSQZLOMIGNAQ-UHFFFAOYSA-N Glutaraldehyde Chemical compound O=CCCCC=O SXRSQZLOMIGNAQ-UHFFFAOYSA-N 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 244000052616 bacterial pathogen Species 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 229960004670 didecyldimethylammonium chloride Drugs 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000000859 sublimation Methods 0.000 description 1
- 230000008022 sublimation Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/16—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using chemical substances
- A61L2/20—Gaseous substances, e.g. vapours
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/24—Apparatus using programmed or automatic operation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/04—Devices for withdrawing samples in the solid state, e.g. by cutting
- G01N1/06—Devices for withdrawing samples in the solid state, e.g. by cutting providing a thin slice, e.g. microtome
Abstract
The invention relates to a method for disinfecting a microtome cryostat (1) comprising a defrosting phase (11), provision (13) of a vaporous disinfection agent (2) which acts upon the closed cryostat chamber (3) and a period of time (14) during which said disinfection agent (2) acts, in addition to a device for carrying out said method. According to the invention, fast and effective disinfection and rapid restarting of a microtome cryostat (1) is possible with secure drying, the temperature difference (ΔT1, ΔT2) being produced after the period of time (14) in the cryostat chamber (3) whereupon the precipitated disinfection agent (2) is removed (18) to a cold area.
Description
- The invention concerns a method for disinfecting a microtome cryostat, comprising a defrosting phase, provision of a vaporous disinfectant which acts upon the closed cryostat chamber, and a period of time during which the disinfectant is effective.
- The invention also concerns a device for disinfecting a microtome cryostat, comprising a microtome in a cryostat chamber, a refrigerator, a means for providing a vaporous disinfectant, and a disinfectant control means to set an effective time after a defrosting phase.
- Disinfection is necessary to protect the operating personnel since microtomes are used for cutting tissue samples which are often infected with germs. Spraying is problematic, in particular, for cryostat microtomes, since the moisture must be removed from the cryostat chamber. Residual moisture on a cryostat microtome freezes after refrigeration for the next working step. Guidances etc. may thereby freeze with the consequence that the microtome is inoperable, or liquid disinfectant, e.g. a highly concentrated alcohol solution, remains in the chamber and causes further problems, even danger of explosion.
- US 2002/0139124 A1 proposes a solution to this problem by disinfection with ozone. This is, however, disadvantageous, since ozone is highly corrosive and damages the surfaces via oxidation. A further disadvantage is that residual ozone is difficult to remove, is poisonous and highly inflammable, and can partially escape from the device even during the disinfecting phase, which could endanger the operating personnel.
- The company leaflet “AS 600 Cryotome” (ANGLIA SCIENTIFIC) proposes another solution for decontamination using UV radiation. Disadvantageously, the UV radiation does not reach the shadow regions. Moreover, the UV radiation cannot penetrate deeply enough into cutting waste or sample residues nor into microscopically small depressions in metal surfaces. This method of decontamination is therefore unsatisfactory.
- A proposal of the above-mentioned type is disclosed in the company leaflets “AS 620 Cryotome” and “AS 620 Cryotome Instruction Manual” (ANGLIA SCIENTIFIC Instruments LTD). A formalin dispenser is thereby heated and the closed cryostat chamber is charged with formalin vapor. The above-mentioned problem of residual moisture in the cryostat and, in particular, on the microtome, also occurs in this case with the consequence that the device must be left open for a relatively long time to dry. Disinfectant thereby escapes which should be prevented for health reasons and due to possible annoyance caused by bad smell. Moreover, the device is inoperable for a relatively long time or is not completely dried.
- It is therefore the underlying purpose of the invention to further develop a method and a device of the above-mentioned type to ensure rapid and effective disinfection to permit as fast a renewed operation of a microtome cryostat as possible as well as complete drying thereof.
- This object is achieved in accordance with the inventive method in that a temperature difference is generated in the cryostat chamber after the effective time and disinfectant deposited in the colder region is discharged.
- This object is achieved in accordance with the inventive device in that the control is designed to generate a temperature difference in the cryostat chamber after the effective time through heating and/or cooling, and a collecting device is disposed in the colder region to remove deposited disinfectant.
- With the present invention, disinfectant and moisture deposit in a colder region after disinfection and are discharged from there in a controlled manner, thereby permitting fast drying and rapid renewed operation while subjecting critical regions of the device, such as the microtome, to particularly effective drying by heating instead of cooling them. This prevents formation of ice during renewed cooling for the next working step which would otherwise impair or prevent further operation. In particular, the device is ready for reliable reuse within a short time after disinfection.
- The most different means can be used as disinfectant, mainly in the form of aqueous solutions, e.g. glutaraldehyde, benzalconium chloride, formalin and didecyl dimethyl ammonium chloride.
- The temperature difference can be generated both by cooling as well as by heating of a region. It is thereby advantageous to use existing cooling or heating devices. The temperature of the refrigerator of the cryostat may be reduced below 0° C. in a cooling phase after the effective time until at least the majority of the disinfectant has deposited on the refrigerator followed by defrosting of the refrigerator to discharge the disinfectant from the cryostat chamber using a collecting device. A collecting device of this type is usually disposed below the refrigerator to be able to remove the defrosted dew or defrosted ice liquids from the cryostat chamber.
- Another possibility is to heat the microtome after the effective time. Due to such heating, the disinfectant, e.g. the disinfecting solution, is transferred from the microtome to colder parts of the device with the result that the microtome is dried for the subsequent cooling phase. The temperature difference can, of course, be obtained through cooling as well as heating, wherein a combination of the two above-mentioned measures is preferred. The colder regions within the cryostat chamber are preferably selected such that the deposited disinfectant or moisture can be easily collected and discharged.
- In any event, the heating temperature is preferably considerably higher than the surrounding temperature of the cryostat in order to completely dry the microtome.
- To also achieve maximum effective disinfection, the invention proposes blowing the vaporous disinfectant into the cryostat chamber. This forced convection causes uniform wetting of all components. The disinfectant can be vaporized through a heater, wherein vaporization is preferably effected through ultrasound which permits generation of a uniform aerosol without separating the phases of the substances of the disinfectant, thereby providing uniform disinfection. The disinfectant may, of course, also be present in the form of vapor.
- The cryostat is preferably heated after the defrosting phase to at least the surrounding temperature. This heating is preferably followed by a temperature balancing time to ensure that all components have the same temperature and are subjected to uniform disinfection during the effective time of the disinfectant. Different heaters may be used for heating, wherein a heater installed in the microtome is preferred. Heating via the microtome prevents thawing thereof and thereby dilution of the solvent during the actual subsequent disinfection during the effective time, which provides excellent disinfection of the microtome.
- The cutting waste should be mechanically removed before introduction of the vaporous disinfectant. This may be effected manually or the cutting waste may be suctioned to thereby prevent residual contamination in the cryostat chamber by the cutting waste.
- Moreover, vaporous disinfectant may be suctioned into a suction system for disinfection thereof. Suctioning disinfects tubes, filters, pump and blocking devices of the suction system.
- Further developments and embodiments of the device may correspond to the further developments and embodiments of the method and vice versa, wherein the above-mentioned advantages can be achieved in each case.
- In a further development of the device, the control is designed to reduce the temperature of the refrigerator of the cryostat below 0° C. in a cooling phase after the effective time until at least the majority of the disinfectant has deposited on the refrigerator, and the refrigerator is subsequently thawed to discharge the disinfectant from the cryostat chamber using the collecting means.
- Alternatively or additionally, the microtome may comprise a heater and the control may be designed to initiate heating of the microtome after the effective time thereby completely drying the microtome as already described in connection with the method.
- The refrigerator also advantageously comprises a heater with the control being designed to switch on the heater to accelerate thawing. The disinfectant and moisture sublimated on the refrigerator can thereby be easily liquefied and discharged, ensuring rapid reoperation of the device.
- The means for providing a vaporous disinfectant preferably comprises a blower for introducing the vaporous disinfectant into the cryostat chamber to achieve forced convection into the cryostat chamber with uniform distribution of the disinfectant. The means for vaporizing the disinfectant is preferably provided with an ultrasound actuator to realize the above-mentioned atomization of the disinfectant without phase separation. The means for generating the vaporous disinfectant is preferably supplied with disinfectant from a supply container. A valve may be provided to control the liquid level of the disinfectant in the means for generating the vaporous disinfectant.
- The invention is explained below with reference to the figures of the drawing showing examples.
-
FIG. 1 shows an exemplary view of the temperature dependences and method steps of an inventive method; and -
FIG. 2 shows an embodiment of an inventive microtome cryostat. -
FIG. 1 shows examples of possible temperature dependences of the inventive method, wherein the temperatures T in ° C. are plotted against time t andpossible method steps 11 through 19 are shown. - Starting from an operational temperature of the microtome of between −5° C. and −35° C., a defrosting
phase 11 is initiated withheating 12 to at least the surrounding temperature TU which is within a range from 20 to 25° C. This process is preferably accelerated by operating theheater 7 of themicrotome 6, wherein heating via themicrotome 6 is advantageous in that the latter does not thaw. For this reason, thedisinfectant 2 cannot be diluted by the dew during subsequent disinfection. In view of the device features, reference is made toFIG. 2 . - Due to the microtome heater, the temperature TM of the
microtome 6 increases faster than the temperature TK of thecryostat chamber 3.Heating 12 is therefore preferably followed by a temperature balancingtime 12′. When all components have reached approximately the same temperature, avaporous disinfectant 2 is provided 13 which is blown into thecryostat chamber 3. - When all components have been uniformly wetted with
disinfectant 2,heating 15 of themicrotome 6 by themicrotome heater 7 is initiated after lapse of aneffective time 14, thereby further increasing the temperature TM of themicrotome 6, e.g. to 50° C. to transfer moisture and disinfectant from themicrotome 6 to the colder parts of thecryostat chamber 3. To cause precise sublimation of the disinfectant on the refrigerator 4 of the cryostat 1, the cryostat 1 is cooled below 0° C. in acooling phase 16, preferably to a region of −10° C. Temperature differences ΔT1 and ΔT2 are thereby generated, wherein ΔT1 is the difference between the temperature TM of themicrotome 6 and of the temperature TV of the refrigerator 4, and ΔT2 is the difference between the temperature TK of thecryostat chamber 3 and the temperature TV of the refrigerator 4. In consequence thereof, thedisinfectant 2 and moisture on the refrigerator 4 are sublimated on the refrigerator 4 and deposit there in the form of dew and ice. A defrosting phase 17 of the refrigerator 4 is then initiated during which the thawed liquid is discharged. The thawed liquid is discharged 18 using acollecting device 5 which guides the thawed liquid out of thecryostat chamber 3. Thawing 17 of the refrigerator 4 is suitably supported by aheater 10 of the refrigerator 4, wherein the latter is heated e.g. to +6° C. When the thawed liquid has been discharged, thecryostat chamber 3 and, in particular, themicrotome 6 are dry. Cooling can be repeated forreoperation 19 to bring the microtome cryostat 1 again to its operating temperature for new object processing. -
FIG. 2 shows an embodiment of an inventive microtome cryostat 1. The microtome cryostat 1 consists of a cooled housing which surrounds acryostat chamber 3 and can be opened via anopening 32. Thecryostat chamber 3 contains amicrotome 6 including anobject carrier 33 and aknife 34 for producing the cuts. Thecryostat chamber 3 is cooled using a refrigerator 4, e.g. a vaporizer, which is connected to acoolant supply 30. Themicrotome 6 as well as the refrigerator 4 are provided withheaters cryostat chamber 3 into asupply container 28 via anoutlet 25. - Moreover, a
means 8 for providing avaporous disinfectant 2 blows the evaporateddisinfectant 2 via a pipe into thecryostat chamber 3 in the direction of thearrows 35. Towards this end, ablower 20 and anultrasound actuator 21 are provided to generate the aerosol from theliquid disinfectant 2. Asupply container 22 and avalve 23 thereby ensure that theliquid level 24 of thedisinfectant 2 in themeans 8 is always maintained. - The invention also comprises a control 9 which is connected to the
heater 7 of themicrotome 6, to theheater 10 of the refrigerator 4, to theultrasound actuator 21, theblower 20 and thecoolant supply 30 of the refrigerator 4 via connectinglines 31. The control 9 may furthermore be connected to sensors (not shown) for detecting the temperature, air moisture, etc. to ensure effective control of the described temperatures and drying processes. Connection to aventilator 29 of asuction system 26 and to avalve 23 and further functional elements is also possible. - The connecting
lines 31 provide control 9 of the temperature dependences TK, TM and TV (FIG. 1 ) and of the method steps 11 through 19 by controlling theheaters 7 and/or 10 and cooling using the refrigerator 4. Thecontrol 19 also controls the supply 13 of thevaporous disinfectant 2 via themeans 8. - The control 9 can also initiate suctioning of
vaporous disinfectant 2 into thesuction system 26 for disinfecting e.g. theventilator 29, the pipes and thefilter 27 located therein. - The illustrated temperature dependences TK, TM and TV and working
steps 11 through 19 ofFIG. 1 and the device features ofFIG. 2 are only examples. The temperature differences ΔT1 and ΔT2 for the deposit ofdisinfectant 2 and moisture and the discharge thereof are essential. An alternative design of the heaters or alternative generation of temperature differences within thecryostat chamber 3 are also possible, e.g. only through heating or only through cooling, or the time sequence may be different, wherein e.g. method steps 11 through 19 could partially overlap. - Method and Device for Disinfecting a Microtome Cryostat
-
- 1 microtome cryostat (cryostat)
- 2 disinfectant
- 3 cryostat chamber
- 4 refrigerator (of the cryostat) e.g. vaporizer
- 5 collecting device
- 6 microtome
- 7 microtome heater
- 8 means for providing a vaporous disinfectant
- 9 control
- 10 heater of the refrigerator
- 11 defrosting phase
- 12 heating to at least surrounding temperature
- 12′temperature balancing time
- 13 providing a vaporous disinfectant
- 14 effective time of the disinfectant
- 15 heating the microtome
- 16 cooling refrigerator
- 17 thawing refrigerator
- 18 discharging the thawed liquid
- 19 cooling for reoperation
- 20 blower
- 21 ultrasound actuator
- 22 supply container for disinfectant
- 23 valve
- 24 liquid level
- 25 discharge
- 26 suction system
- 27 filter
- 28 supply container for thawed liquid
- 29 ventilator
- 30 coolant supply of the refrigerator (vaporizer)
- 31 connecting lines for control
- 32 opening of the cryostat chamber
- 33 object carrier
- 34 knife
- 34 arrows: blowing in vaporous disinfectant
- T temperature in ° C.
- t time
- ΔT1 temperature difference between refrigerator and microtome
- ΔT2 temperature difference between refrigerator and cryostat chamber
- TU surrounding temperature of the cryostat
- TK temperature of the cryostat chamber
- TM temperature of the microtome
- TV temperature of the refrigerator (vaporizer)
Claims (23)
1-21. (canceled)
22. A method for disinfecting a microtome cryostat, the cryostat having a closed cryostat chamber, the method comprising the steps of:
a) subjecting the cryostat to a defrosting phase;
b) introducing a vaporous disinfectant into the closed cryostat chamber;
c) waiting an effective time for action of the disinfectant;
d) generating a temperature difference in the cryostat chamber following step c); and
e) discharging disinfectant deposited in a colder region of the cryostat chamber in response to step d).
23. The method of claim 22 , wherein, following step c), a temperature of a cryostat refrigerator is reduced to below 0° C. in a cooling phase until at least a majority of disinfectant has deposited on the refrigerator, the refrigerator being subsequently thawed to discharge the disinfectant from the cryostat chamber with the assistance of a collecting device.
24. The method of claim 22 , wherein the microtome is heated after step c).
25. The method of claim 24 , wherein a heating temperature clearly exceeds a surrounding temperature of the cryostat.
26. The method of claim 22 , wherein the vaporous disinfectant is blown into the cryostat chamber.
27. The method of claim 22 , wherein the disinfectant is evaporated using ultrasound.
28. The method of claim 22 , wherein the cryostat is heated to at least a surrounding temperature following step a).
29. The method of claim 28 , wherein a heating period is followed by a temperature balancing time.
30. The method of claim 28 , wherein heating is effected using a microtome heater.
31. The method of claim 22 , wherein cutting waste is mechanically removed prior to step b).
32. The method of claim 31 , wherein the cutting waste is suctioned off.
33. The method of claim 22 , wherein the vaporous disinfectant is suctioned into a suction system to also disinfect same.
34. A device for disinfecting a microtome cryostat, the device comprising:
means for subjecting a closed cryostat chamber to a defrosting phase;
means for introducing a vaporous disinfectant into said closed cryostat chamber;
means for waiting an effective time for action of the disinfectant;
means for generating a temperature difference in said cryostat chamber; and
means for discharging disinfectant deposited in a colder region of said cryostat chamber.
35. The device of claim 34 , the device comprising a microtome in said cryostat chamber, a refrigerator, and a control communicating with said disinfectant introduction means and with said effective time waiting means, wherein said control also generates said temperature difference in said cryostat chamber through heating and/or cooling, wherein a collecting device is disposed in a colder region to remove deposited disinfectant.
36. The device of claim 35 , wherein said control is designed to reduce a temperature of said refrigerator of the cryostat in a cooling phase to below 0° C. after said effective time until at least a majority of disinfectant has deposited on said refrigerator, said refrigerator being subsequently thawed to discharge disinfectant from said cryostat chamber using said collecting device.
37. The device of claim 35 , wherein said microtome has a heater and said control is designed to heat said microtome after said effective time.
38. The device of claim 35 , wherein said refrigerator comprises a heater and said control is designed to switch on said heater to accelerate thawing.
39. The device of claim 35 , wherein said means for introducing a vaporous disinfectant comprises a blower for introducing the disinfectant into said cryostat chamber.
40. The device of claim 35 , wherein said disinfectant introduction means comprises means for vaporizing the disinfectant using ultrasound.
41. The device of claim 35 , wherein said disinfectant introduction means comprises a disinfectant supply container.
42. The device of claim 41 , further comprising a valve for controlling a disinfectant level.
43. The device of claim 35 , wherein said collecting device discharges liquid, dripping from said refrigerator, out of said cryostat chamber via an outlet.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/078,580 US8246905B2 (en) | 2003-02-01 | 2008-04-02 | Method for disinfecting a microtome cryostat |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10303989.9 | 2003-02-01 | ||
DE10303989A DE10303989B4 (en) | 2003-02-01 | 2003-02-01 | Method and device for disinfecting a microtome cryostat |
PCT/EP2003/013267 WO2004067047A2 (en) | 2003-02-01 | 2003-11-26 | Method and device for disinfecting a microtome cryostat |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2003/013267 A-371-Of-International WO2004067047A2 (en) | 2003-02-01 | 2003-11-26 | Method and device for disinfecting a microtome cryostat |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US12/078,580 Continuation US8246905B2 (en) | 2003-02-01 | 2008-04-02 | Method for disinfecting a microtome cryostat |
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US20060133950A1 true US20060133950A1 (en) | 2006-06-22 |
Family
ID=32747522
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
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US10/543,195 Abandoned US20060133950A1 (en) | 2003-02-01 | 2003-11-26 | Method and device for disinfecting a microtome cryostat |
US12/078,580 Active 2027-02-14 US8246905B2 (en) | 2003-02-01 | 2008-04-02 | Method for disinfecting a microtome cryostat |
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Application Number | Title | Priority Date | Filing Date |
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US12/078,580 Active 2027-02-14 US8246905B2 (en) | 2003-02-01 | 2008-04-02 | Method for disinfecting a microtome cryostat |
Country Status (6)
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US (2) | US20060133950A1 (en) |
EP (1) | EP1587552B1 (en) |
JP (1) | JP4210654B2 (en) |
AU (1) | AU2003292118A1 (en) |
DE (1) | DE10303989B4 (en) |
WO (1) | WO2004067047A2 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20060011856A1 (en) * | 2004-07-15 | 2006-01-19 | Skaggs Donald E | Disinfection and decontamination using ultraviolet light |
US20070204734A1 (en) * | 2006-01-18 | 2007-09-06 | Tetsumasa Ito | Automatic sliced piece fabricating apparatus and automatic sliced piece sample fabricating apparatus |
US20100329925A1 (en) * | 2009-06-25 | 2010-12-30 | Microm International Gmbh | Method and device for disinfecting a microtome cryostat |
CN113786510A (en) * | 2021-09-18 | 2021-12-14 | 沛县盛玛特新材料研究院有限公司 | Medical cotton ball treatment facility |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012106846B4 (en) * | 2012-07-27 | 2014-09-25 | Leica Biosystems Nussloch Gmbh | Microtome with a piezolinear drive |
US11073447B2 (en) * | 2016-03-31 | 2021-07-27 | Agilent Technologies, Inc. | Apparatus and methods for transferring a tissue section |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4952370A (en) * | 1988-05-06 | 1990-08-28 | American Sterilizer Company | Hydrogen peroxide sterilization method |
US5711705A (en) * | 1995-05-25 | 1998-01-27 | Flanders Filters, Inc. | Isolation work station |
US5974811A (en) * | 1997-03-07 | 1999-11-02 | Carl-Zeiss-Stiftung Trading As Carl Zeiss | Suction device for cutting wastes in a cryostatic microtome |
US6589481B1 (en) * | 1996-04-04 | 2003-07-08 | Ethicon, Inc. | Apparatus and method to pretreat and sterilize a lumen device |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3202627A1 (en) * | 1982-01-25 | 1983-08-11 | Melagapparate Gmbh, 1000 Berlin | Method of conveying a sterilising medium out of a sterilizer, and an apparatus for carrying out the method |
US4909999A (en) * | 1987-07-06 | 1990-03-20 | American Sterilizer Company | Flow-through vapor phase sterilization system |
US5122344A (en) * | 1990-01-31 | 1992-06-16 | Mdt Corporation | Chemical sterilizer system |
FR2705587A1 (en) * | 1993-05-25 | 1994-12-02 | Tabone Herve | Cryostat for microtomy, especially for histological work |
AUPP427398A0 (en) * | 1998-06-23 | 1998-07-16 | Novapharm Research (Australia) Pty Ltd | Improved disinfection |
GB2354443A (en) * | 1999-09-21 | 2001-03-28 | Microflow Ltd | Vapour phase sterilisation |
US6481219B2 (en) * | 2001-03-30 | 2002-11-19 | Sakura Finetek U.S.A., Inc. | Disinfection system and method of using same |
-
2003
- 2003-02-01 DE DE10303989A patent/DE10303989B4/en not_active Expired - Lifetime
- 2003-11-26 US US10/543,195 patent/US20060133950A1/en not_active Abandoned
- 2003-11-26 AU AU2003292118A patent/AU2003292118A1/en not_active Abandoned
- 2003-11-26 JP JP2004567298A patent/JP4210654B2/en not_active Expired - Lifetime
- 2003-11-26 WO PCT/EP2003/013267 patent/WO2004067047A2/en active Application Filing
- 2003-11-26 EP EP03767660A patent/EP1587552B1/en not_active Expired - Lifetime
-
2008
- 2008-04-02 US US12/078,580 patent/US8246905B2/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4952370A (en) * | 1988-05-06 | 1990-08-28 | American Sterilizer Company | Hydrogen peroxide sterilization method |
US5711705A (en) * | 1995-05-25 | 1998-01-27 | Flanders Filters, Inc. | Isolation work station |
US6589481B1 (en) * | 1996-04-04 | 2003-07-08 | Ethicon, Inc. | Apparatus and method to pretreat and sterilize a lumen device |
US5974811A (en) * | 1997-03-07 | 1999-11-02 | Carl-Zeiss-Stiftung Trading As Carl Zeiss | Suction device for cutting wastes in a cryostatic microtome |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20060011856A1 (en) * | 2004-07-15 | 2006-01-19 | Skaggs Donald E | Disinfection and decontamination using ultraviolet light |
US7319230B2 (en) * | 2004-07-15 | 2008-01-15 | Skaggs Donald E | Disinfection and decontamination using ultraviolet light |
US20070204734A1 (en) * | 2006-01-18 | 2007-09-06 | Tetsumasa Ito | Automatic sliced piece fabricating apparatus and automatic sliced piece sample fabricating apparatus |
US7802507B2 (en) * | 2006-01-18 | 2010-09-28 | Seiko Instruments Inc. | Automatic sliced piece fabricating apparatus and automatic sliced piece sample fabricating apparatus |
US20100329925A1 (en) * | 2009-06-25 | 2010-12-30 | Microm International Gmbh | Method and device for disinfecting a microtome cryostat |
CN101936821A (en) * | 2009-06-25 | 2011-01-05 | 迈克罗姆国际股份有限公司 | The method and apparatus of freezing-microtome is used to sterilize |
US8007719B2 (en) * | 2009-06-25 | 2011-08-30 | Microm International Gmbh | Method and device for disinfecting a microtome cryostat |
CN113786510A (en) * | 2021-09-18 | 2021-12-14 | 沛县盛玛特新材料研究院有限公司 | Medical cotton ball treatment facility |
Also Published As
Publication number | Publication date |
---|---|
AU2003292118A8 (en) | 2004-08-23 |
AU2003292118A1 (en) | 2004-08-23 |
WO2004067047A2 (en) | 2004-08-12 |
US8246905B2 (en) | 2012-08-21 |
WO2004067047A3 (en) | 2004-10-21 |
US20080181814A1 (en) | 2008-07-31 |
DE10303989B4 (en) | 2006-07-06 |
EP1587552B1 (en) | 2011-08-17 |
DE10303989A1 (en) | 2004-08-26 |
EP1587552A2 (en) | 2005-10-26 |
JP2006513749A (en) | 2006-04-27 |
JP4210654B2 (en) | 2009-01-21 |
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