WO2013045092A1 - Microscope opératoire avec un composant générateur de chaleur et un dispositif de refroidissement - Google Patents

Microscope opératoire avec un composant générateur de chaleur et un dispositif de refroidissement Download PDF

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Publication number
WO2013045092A1
WO2013045092A1 PCT/EP2012/004053 EP2012004053W WO2013045092A1 WO 2013045092 A1 WO2013045092 A1 WO 2013045092A1 EP 2012004053 W EP2012004053 W EP 2012004053W WO 2013045092 A1 WO2013045092 A1 WO 2013045092A1
Authority
WO
WIPO (PCT)
Prior art keywords
surgical microscope
heat
flow channel
suspension
generating component
Prior art date
Application number
PCT/EP2012/004053
Other languages
German (de)
English (en)
Inventor
Markus Bausewein
Peter Reimer
Original Assignee
Carl Zeiss Meditec Ag
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Carl Zeiss Meditec Ag filed Critical Carl Zeiss Meditec Ag
Publication of WO2013045092A1 publication Critical patent/WO2013045092A1/fr

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B21/00—Microscopes
    • G02B21/0004—Microscopes specially adapted for specific applications
    • G02B21/0012—Surgical microscopes
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/001—Counterbalanced structures, e.g. surgical microscopes

Definitions

  • the invention relates to a surgical microscope with a base body having a heat-generating component and a cooling device for the heat-generating
  • Component comprising a first flow channel for a cooling medium.
  • Surgical microscopes often include components in which heat is generated or stored and dispensed during operation. These include, inter alia, such assemblies or attachments of the surgical microscope, which energy is supplied in any form from outside, because a part of the energy is always converted into thermal energy and thus heat due to unavoidable losses in the device. Heat can in surgical microscopes, for example, by a power loss of electrical
  • the heat-generating components must be cooled frequently, for example, the working temperature within a desired
  • the lighting unit is in one
  • the lighting arm of a suspension arranged.
  • the light of the lighting unit is guided via optical fibers along the suspension to the microscope.
  • the lighting arm has a fan through which an air flow in the lighting arm on the
  • Lighting unit is generated over, whereby the lighting unit is cooled.
  • a disadvantage of the surgical microscope known from US 5122904 is the loss of light that arises through the light guide.
  • the lighting unit includes a
  • CONFIRMATION COPY Lamp which is arranged in a housing.
  • the housing is designed as a flow channel and has holes below the lamp, through which air can flow into the housing.
  • a hose line with a blower is connected at the upper end of the housing.
  • To cool the lamp air is sucked in operation by means of the blower through the holes below the lamp and passed to the lamp passing through the tubing of the microscope away.
  • a disadvantage of the surgical microscope known from US 4039817 is that the device for removing the heat from the work area is very bulky and that additional hose lines are provided for heat transport, the
  • An object of the present invention is an operation microscope
  • the surgical microscope has a suspension for the main body, wherein the first flow channel is at least partially disposed in the suspension.
  • a suspension is to understand any device by which the
  • a suspension may in particular be designed as an arm of a tripod, which is directly connected to the main body of the
  • the suspension is detachable or unsolvable with the
  • Base body connected or alternatively formed in one piece with the body.
  • the flow channel allows at least a majority of the heat generated on the
  • Suspension of the heat generating component and away from the body to transport The arrangement of the first flow channel in the suspension leads to a compact structure with little or no additional elements on an outer side of the surgical microscope, so that the surgical microscope according to the invention can be kept easily sterile.
  • means for generating a flow of the cooling medium in the first flow channel are present. As a result, a heat transfer in the flow channel is improved, so that a greater cooling capacity is achieved.
  • Flow at least one solid state fan is based on a corona discharge between two electrodes.
  • a strong electric field ionizes air molecules and sets them in motion.
  • An advantage of a solid state fan is that it is operated without moving parts, so that no or at most low vibrations are introduced into the surgical microscope.
  • the means for generating a flow comprise at least one fan. This is a very reasonably priced way to improve convection in the flow channel.
  • the surgical microscope comprises a second flow channel, which is arranged at least partially in the interior of the suspension and which is connected in flow-conducting manner with the first flow channel.
  • the cooling medium can be fed to the surgical microscope through the second flow channel.
  • Surgical microscope is fed or decoupled.
  • the working space is to be understood as meaning a space between an operating area and the surgical microscope, which the attending physician needs to carry out his treatment.
  • the second flow channel can also be arranged in particular in the suspension, so that a feed of the cooling medium takes place in the suspension.
  • the first flow channel is arranged at least partially within the second flow channel. This makes it possible to achieve a particularly compact design.
  • the surgical microscope comprises a
  • Flow channel extends and through which a large part of the heat generated is transportable to the cooling medium in the interior of the first flow channel. This makes it possible for the
  • the thermal bridge is configured as a heat conductor and comprises a material having a thermal conductivity of more than 200 W / mK.
  • the generated heat is thus transported by conduction from the heat generating component through the heat conductor to the flow channel. Via a wall of the flow channel, the heat is transferred to the cooling medium and from there primarily by convection in the
  • the heat-generating component is designed as a lighting device, wherein the lighting device may in particular comprise a light-emitting diode (LED).
  • LED light-emitting diode
  • Lighting devices usually have a large heat output, so that an application of the invention to a surgical microscope with a lighting device is particularly advantageous.
  • FIGURE 1 shows a first embodiment of a device according to the invention
  • FIG. 1 shows a surgical microscope 1 according to the invention with a heat-generating component in the form of a lighting unit 2 and with a suspension 3.
  • the surgical microscope 1 is designed as a stereoscope and has two
  • observation beam paths wherein in Figure 1, only one observation beam path 4 is shown.
  • the observation beam path are a main lens 6, a
  • Magnification changer 7 for setting a magnification factor of the surgical microscope and a tube 8 for deflecting the observation beam path in the direction of an observer.
  • an intermediate image can be generated by the tube 8, which can be viewed by an observer through an eyepiece 9.
  • the surgical microscope 1 further comprises a lighting unit 2 with a lighting means in the form of a light-emitting diode 10 (hereinafter referred to as LED) for illuminating the LED
  • Object level 5 with light Light emitted by the LED 10 is in a
  • Illuminating beam path 13 bundled by a converging lens 1 1 and guided through a mirror 12 through the main lens 6 to the object plane 5.
  • Illuminating beam path 13 bundled by a converging lens 1 1 and guided through a mirror 12 through the main lens 6 to the object plane 5.
  • Embodiments is available as a light source, a halogen lamp, a xenon lamp or an OLED.
  • a beam splitter is arranged in the observation beam path instead of the mirror, so that the illumination beam path is superimposed on the observation beam path.
  • the illumination beam path is guided past the main objective 6 to the object plane 5.
  • a housing 14 of the surgical microscope 1 is not shown in detail
  • the suspension 3 is designed in this embodiment as viewed from the housing first support arm 15 of a not-shown tripod of the surgical microscope, wherein the tripod may comprise any number of further support arms.
  • Under a support arm in this context is generally a member of a closed or open kinematic chain to understand, by which the housing of the surgical microscope with a fixed point in the room (for example, a pivot point on the floor, wall or ceiling of the operating room) is connected.
  • the housing is connected via a fixed connection with a first support arm of a tripod, wherein the connection can be made detachable or non-detachable.
  • the housing and the first support arm can also be made in one piece.
  • a second flow channel 17 and a first flow channel 16 are formed inside the support arm 15, a second flow channel 17 and a first flow channel 16 are formed.
  • a cooling medium in the form of air can be fed to a lower end 18 of the support arm 15, to which the connection to the housing 14 is located.
  • the air via openings at an upper end 19 of the support arm 15 in the support arm can be introduced.
  • the air is supplied to the second flow channel via further flow channels in adjacent support arms of the tripod. At the lower end 18 of the support arm 15, the air is deflected and guided by the first flow channel back to the upper end 19 of the support arm 15.
  • the first flow channel 16 means for generating a flow in the form of three solid state fans 20 (hereinafter referred to as SSF) are arranged.
  • SSF 20 solid state fans 20
  • the functional principle of this SSF 20 is based on a corona discharge between two electrodes.
  • Ionized air molecules and set in motion by a strong electric field creating an air flow in the order of up to several meters per second.
  • An advantage of an SSF is that it operates without any moving parts, so that no appreciable vibrations or shocks are generated in the system, even if deposits or impurities have formed after a long period of operation.
  • the first flow channel 16 and the LED 10 are connected to each other via a thermal bridge or a heat pipe in the form of a heat pipe 21. Due to the heat conduction 21, a large part of the heat generated by the LED to the lower end 18 of the support arm 15th
  • the heat conduction 21 stands with the LED 10 or a heat sink of the LED 10 in heat-conducting contact. A large part of the heat is understood to mean an amount of at least 50% of a heat output delivered by the LED.
  • a heat transfer from the LED 10 through the housing 14 and the suspension 3 takes place in two steps.
  • a first step a large part of the heat generated by the LED 10 by heat conduction from the LED 10 via the heat conductor 21 for transmitted lower end 18 of the support arm 15.
  • the heat conductor 21 adjoins the air flow generated by the SSF 20 in the first flow channel 16.
  • the heat is transferred by heat conduction from the heat conductor 21 to the air, which thus absorbs thermal energy.
  • the flow of air causes a transport of thermal energy through the second flow channel from the lower end 18 of the support arm 15 away.
  • the surgical microscope according to the invention has been described in the embodiments with reference to a heat-generating component in the form of a lighting unit. Without restricting the general public, however, the concept can also be applied to other components, in particular electrically operated components such as video cameras or data reflection systems.
  • the first support arm itself is designed as a first flow channel, so that it can be dispensed with a separate component in the interior of the first support arm.
  • the heated air can be transported to an area in which the heated exhaust air is not or only slightly disturbing effect on the operation of the surgical microscope.
  • the invention enables a comfortable operation of the surgical microscope. Furthermore, on the arrangement

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Microscoopes, Condenser (AREA)

Abstract

L'invention concerne un microscope opératoire (1) muni d'un corps de base (14), qui comporte un composant générateur de chaleur (2), et d'un dispositif de refroidissement pour le composant générateur de chaleur (2), qui comprend un premier canal d'écoulement (16) pour un fluide réfrigérant. Selon l'invention, le microscope opératoire (1) présente un organe de suspension (3) pour le corps de base (14), le premier canal d'écoulement (16) étant disposé au moins en partie dans l'organe de suspension (3).
PCT/EP2012/004053 2011-09-29 2012-09-27 Microscope opératoire avec un composant générateur de chaleur et un dispositif de refroidissement WO2013045092A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011114525.0 2011-09-29
DE102011114525.0A DE102011114525B4 (de) 2011-09-29 2011-09-29 Operationsmikroskop mit Wärme erzeugender Komponente und mit Kühlvorrichtung

Publications (1)

Publication Number Publication Date
WO2013045092A1 true WO2013045092A1 (fr) 2013-04-04

Family

ID=47148696

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2012/004053 WO2013045092A1 (fr) 2011-09-29 2012-09-27 Microscope opératoire avec un composant générateur de chaleur et un dispositif de refroidissement

Country Status (2)

Country Link
DE (1) DE102011114525B4 (fr)
WO (1) WO2013045092A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016086945A1 (fr) * 2014-12-04 2016-06-09 Chemometec A/S Mise en œuvre d'un cytomètre d'image

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4039817A (en) 1975-11-20 1977-08-02 Williams Robert W Microscope lamp assembly
US4309817A (en) 1980-04-29 1982-01-12 Gte Products Corporation Method for assembling an electrochemical cell
US5122904A (en) 1989-10-23 1992-06-16 Olympus Optical Co., Ltd. Operating microscope with drape and suction means for removing air from the drape
WO1997013997A1 (fr) * 1995-10-12 1997-04-17 Leica Ag Support
US20050161176A1 (en) * 2004-01-27 2005-07-28 Carl Zeiss Ag Device holding apparatus
US20110080638A1 (en) * 2009-10-06 2011-04-07 Dieter Feger Microscope

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5122984A (en) 1987-01-07 1992-06-16 Bernard Strehler Parallel associative memory system
DE20221380U1 (de) * 2001-09-20 2005-10-13 Carl Zeiss Surgical Gmbh Instrument mit einem Abdecktuch
US8585251B2 (en) * 2008-12-12 2013-11-19 Bridgelux, Inc. Light emitting diode lamp
DE102010052219A1 (de) * 2010-11-24 2012-05-24 Karl Storz Gmbh & Co. Kg Haltesystem für medizinische Instrumente

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4039817A (en) 1975-11-20 1977-08-02 Williams Robert W Microscope lamp assembly
US4309817A (en) 1980-04-29 1982-01-12 Gte Products Corporation Method for assembling an electrochemical cell
US5122904A (en) 1989-10-23 1992-06-16 Olympus Optical Co., Ltd. Operating microscope with drape and suction means for removing air from the drape
WO1997013997A1 (fr) * 1995-10-12 1997-04-17 Leica Ag Support
US20050161176A1 (en) * 2004-01-27 2005-07-28 Carl Zeiss Ag Device holding apparatus
US20110080638A1 (en) * 2009-10-06 2011-04-07 Dieter Feger Microscope

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016086945A1 (fr) * 2014-12-04 2016-06-09 Chemometec A/S Mise en œuvre d'un cytomètre d'image
US20170261419A1 (en) * 2014-12-04 2017-09-14 Chemometec A/S Image cytometer implementation
US10697884B2 (en) 2014-12-04 2020-06-30 Chemometec A/S Image cytometer implementation

Also Published As

Publication number Publication date
DE102011114525A1 (de) 2013-04-04
DE102011114525B4 (de) 2015-10-15

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