中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

26 records (took 0.019 seconds)

    12.
    发明专利
    未知

    公开(公告)号：FI943305A

    公开(公告)日：1996-01-12

    申请号：FI943305

    申请日：1994-07-11

    Applicant: INSTRUMENTARIUM OY

    Inventor： KARLSSON KAI ,  MERILAEINEN TIMO ,  WECKSTROEM KURT ,  POIKOLAINEN SEPPO

    IPC: G01J3/10 ,  G01N1/08

    Abstract: The application relates to an infrared radiation source for a gas analyzer and a method for generating infrared radiation. The infrared radiation source comprises a body (6), thermal insulation material (5) adapted inside the body (6), a radiant element (1) fitted inside the insulation material (5), elements (2, 3) for feeding electric energy to said radiant element (1), and a channel (7) formed in said body (6) and said thermal insulation material (5) in order to pass the radiation generated by said radiant element (1) to the gas under measurement. According to the description, at least the thermal insulation material (5) adapted in close proximity to the radiant element (1) has a low thermal conductivity and the emissivity of the radiant surface (11) adapted in close proximity to the radiant element (1) is greater than 0.5 at the operating temperature of the source.

    14.
    发明专利
    未知

    公开(公告)号：DE69824263T2

    公开(公告)日：2005-06-23

    申请号：DE69824263

    申请日：1998-03-13

    Applicant: INSTRUMENTARIUM OY HELSINKI

    Inventor： WECKSTROEM KURT ,  KLEEMOLA ANTTI

    IPC: A61B5/08 ,  A61B5/087 ,  G01F1/34 ,  G01F1/40

    Abstract: PCT No. PCT/FI98/00230 Sec. 371 Date Nov. 16, 1998 Sec. 102(e) Date Nov. 16, 1998 PCT Filed Mar. 13, 1998 PCT Pub. No. WO98/41148 PCT Pub. Date Sep. 24, 1998Measuring transducer and system for the measurement of gas flow, especially for the measurement of the pressure and/or flow of a patient's respiratory gas. The surface of the flow channel (1) wall (2) and/or a restricting element (3) in the flow channel which is directly exposed to the gas flow to be measured is provided with a material retaining water inside it.

    15.
    发明专利
    未知

    公开(公告)号：FI971117A

    公开(公告)日：1998-09-18

    申请号：FI971117

    申请日：1997-03-17

    Applicant: INSTRUMENTARIUM OY

    Inventor： WECKSTROEM KURT ,  KLEEMOLA ANTTI

    IPC: A61B5/08 ,  A61B5/087 ,  G01F1/34 ,  G01F1/40

    Abstract: PCT No. PCT/FI98/00230 Sec. 371 Date Nov. 16, 1998 Sec. 102(e) Date Nov. 16, 1998 PCT Filed Mar. 13, 1998 PCT Pub. No. WO98/41148 PCT Pub. Date Sep. 24, 1998Measuring transducer and system for the measurement of gas flow, especially for the measurement of the pressure and/or flow of a patient's respiratory gas. The surface of the flow channel (1) wall (2) and/or a restricting element (3) in the flow channel which is directly exposed to the gas flow to be measured is provided with a material retaining water inside it.

    16.
    发明专利
    未知

    公开(公告)号：FI962729A

    公开(公告)日：1998-01-03

    申请号：FI962729

    申请日：1996-07-02

    Applicant: INSTRUMENTARIUM OY

    Inventor： WECKSTROEM KURT

    IPC: G01F1/34 ,  A61B5/08 ,  A61B5/087 ,  G01F1/46 ,  G01F1/40

    Abstract: Measuring detector and system for the measurement of gas flow, especially for the measurement of the pressure and/or flow of a patient's respiratory gas. The surface of the wall (2) of a flow channel (1) and/or the surface of a restricting element (3), said surface being in direct contact with the gas flow to be measured, is provided with an agent for reducing the contact angle (&thetas;) of a water drop or a drop containing water to said surface in relation to the contact angle formed between a corresponding water drop and a corresponding surface not treated with such agent.

    17.
    发明专利
    未知

    公开(公告)号：FI971117A0

    公开(公告)日：1997-03-17

    申请号：FI971117

    申请日：1997-03-17

    Applicant: INSTRUMENTARIUM OY

    Inventor： WECKSTROEM KURT ,  KLEEMOLA ANTTI

    IPC: A61B5/08 ,  A61B5/087 ,  G01F1/34 ,  G01F1/40 ,  A61B

    Abstract: PCT No. PCT/FI98/00230 Sec. 371 Date Nov. 16, 1998 Sec. 102(e) Date Nov. 16, 1998 PCT Filed Mar. 13, 1998 PCT Pub. No. WO98/41148 PCT Pub. Date Sep. 24, 1998Measuring transducer and system for the measurement of gas flow, especially for the measurement of the pressure and/or flow of a patient's respiratory gas. The surface of the flow channel (1) wall (2) and/or a restricting element (3) in the flow channel which is directly exposed to the gas flow to be measured is provided with a material retaining water inside it.

    18.
    发明专利
    未知

    公开(公告)号：FI97082B

    公开(公告)日：1996-06-28

    申请号：FI943305

    申请日：1994-07-11

    Applicant: INSTRUMENTARIUM OY

    Inventor： KARLSSON KAI ,  MERILAEINEN TIMO ,  WECKSTROEM KURT ,  POIKOLAINEN SEPPO

    IPC: G01J3/10 ,  G01J3/08 ,  G01J1/08

    Abstract: The application relates to an infrared radiation source for a gas analyzer and a method for generating infrared radiation. The infrared radiation source comprises a body (6), thermal insulation material (5) adapted inside the body (6), a radiant element (1) fitted inside the insulation material (5), elements (2, 3) for feeding electric energy to said radiant element (1), and a channel (7) formed in said body (6) and said thermal insulation material (5) in order to pass the radiation generated by said radiant element (1) to the gas under measurement. According to the description, at least the thermal insulation material (5) adapted in close proximity to the radiant element (1) has a low thermal conductivity and the emissivity of the radiant surface (11) adapted in close proximity to the radiant element (1) is greater than 0.5 at the operating temperature of the source.

    19.
    发明专利
    未知

    公开(公告)号：FI942547A

    公开(公告)日：1995-12-01

    申请号：FI942547

    申请日：1994-05-31

    Applicant: INSTRUMENTARIUM OY

    Inventor： WECKSTROEM KURT

    IPC: A61B20060101 ,  G01N20060101 ,  G01N21/61

    Abstract: The invention concerns a measurement sensor, which, for analysis of gas components in a gas mixture G can be placed in contact with the gas mixture being measured, in which an electric signal or electrical signals are obtain- ed from the sensor to be fed to the device, which issues the measurement result. The measurement sensor contains an infrared radiation source 1 and at least a combination of a filter 11a with small beam width and a detector 9a, as well as a measurement gap 4 between this radiation source and the filter-detector combination for the gas mixture to form a nondispersive measurement arrangement. The measurement sensor includes a connection part 26 to attach the sensor on an opening 16 in wall 27, which encloses the gas mixture and a measurement rod 2, which extends from this connection part into the gas volume 25 and contains within the cross-sectional area bounded by wall 27 of gas volume 25 at least one boundary surface 3, 30 of the measurement gap 4, as well as a heat generating element 1 to heat the surfaces, which reflect or transmit the radiation R flowing from the radiation source to the detector.

Patent Agency Ranking