WO2021170364A1 - Support de filtre optique pour un dispositif d'analyte biologique - Google Patents

Support de filtre optique pour un dispositif d'analyte biologique Download PDF

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Publication number
WO2021170364A1
WO2021170364A1 PCT/EP2021/052672 EP2021052672W WO2021170364A1 WO 2021170364 A1 WO2021170364 A1 WO 2021170364A1 EP 2021052672 W EP2021052672 W EP 2021052672W WO 2021170364 A1 WO2021170364 A1 WO 2021170364A1
Authority
WO
WIPO (PCT)
Prior art keywords
holder
filter element
bio
cut
light
Prior art date
Application number
PCT/EP2021/052672
Other languages
English (en)
Inventor
Mohan Murali
Kudur Narayana RAGHAVENDRA RAO
Prakash Palanisamy
Ramakrishna Reddy MANJUNATH
Nisha VADAKKUMCHERRY BALAN
Original Assignee
Robert Bosch Gmbh
Robert Bosch Engineering And Business Solutions Private Limited
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 Robert Bosch Gmbh, Robert Bosch Engineering And Business Solutions Private Limited filed Critical Robert Bosch Gmbh
Publication of WO2021170364A1 publication Critical patent/WO2021170364A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/0059—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/27—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using photo-electric detection ; circuits for computing concentration
    • G01N21/274—Calibration, base line adjustment, drift correction
    • G01N21/276—Calibration, base line adjustment, drift correction with alternation of sample and standard in optical path
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2560/00—Constructional details of operational features of apparatus; Accessories for medical measuring apparatus
    • A61B2560/04—Constructional details of apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L9/00—Supporting devices; Holding devices
    • B01L9/52—Supports specially adapted for flat sample carriers, e.g. for plates, slides, chips

Definitions

  • This invention is related to a regulating tool for a bio-analyte device.
  • the regulating tool is a holder designed for the bio-analyte device.
  • a prior art document IN201841005410 discloses a controller to determine incident intensity of a light source for a hemoglobin monitoring device.
  • the controller adapted to supply a reduced rated power to at least one light source, when the device is switched ON, the rated power is reduced by a predetermined factor.
  • the control unit measures a value of the incident intensity of emitted light from the at least one light source through a photodetector.
  • the control unit further determines the incident intensity by multiplying the measured value with the predetermined factor.
  • Figure 1 illustrates a holder for a bio-analyte device, in accordance with an embodiment of the invention
  • Figure 2 illustrates a cut-section of the holder in the bio-analyte device in accordance with the invention.
  • Figure 3 illustrates the exploded view of the holder in accordance with the present invention.
  • FIG 1 illustrates a holder 11 for a bio-analyte device 10, in accordance with an embodiment of the invention.
  • the bio-analyte device 10 comprises a light source 12 and a photo detector 14.
  • the holder 11 comprises an opening 16 having multiple cut-sections 18, to accommodate a filter element 20 in at least one cut-section 18.
  • the holderll adapted to hold the filter element 20 in the bio-analyte device 10 between the light source 12 and the photo detector 14.
  • the bio- analyte device 10 comprises an optical guide 38 positioned between the photo detector 14 and the light source 16.
  • a body appendage (not shown] is inserted into the optical guide 38 to detect at least one human body parameter as known in the state of the art.
  • the light source 12 passes the light through the body appendage towards the photo detector 14, wherein the photo detector 14 detects the intensity of the light received. Based on the detected intensity, the human body parameter value is determined.
  • the intensity of light passing the body appendage varies from one device to another device due to gain-offset variations in amplifiers.
  • the present invention proposes a solution of the holder 11 having the filter element 20 positioned in the optical guide 38 of the device 10, between the light source 12 and the photo detector 14 during the calibration process.
  • the filter element 20 adapted to filter the unwanted wavelengths of the light coming from the light source 12 and to allow only a predefined wavelength of light.
  • Figure 2 illustrates a cut-section of the holder 11 in the bio-analyte device 10 in accordance with the invention.
  • the holder 11 holding the filter element 20 comprises a first portion 22 and a second portion 24.
  • the first portion 22 made perpendicular to the second portion 24.
  • the first portion 22 and the second portion 24 comprises at least one cut-section 26 (a,b] corresponding to at least one cut-section 28 (a,b] of the device 10.
  • the first portion 22 has a shape of a flange and the second portion 24 is extended perpendicular to the flange 22 and has a flat surface.
  • the shape of the first portion 22 and the second portion 24 are not restricted to the above mentioned, but can be of any shape that can fit into the bio-analyte device 10.
  • the first portion 22 gets fix on/with an outer surface 30 of the device 10, while the second portion 24 is positioned inside the device 10.
  • the first portion 22 of the holder 11 comprises cut-sections 26 (a] corresponding to the cut-sections 28 (a] of the device present on the outer surface 30, wherein the second portion 24 comprises cut-sections 26 (b] corresponding to the cut-sections 28(b] of the optical guide 38 of the device 10.
  • the second portion 24 further comprises two extensions 36 made at an open end of the holder 11, such that, the extensions 36 fits into the device 10 and helps in locking the position of the holder 11 inside the device 10.
  • the first portion 24 comprises an extension 32 for a user to pull- out/push-in the holder 11 into the device 10.
  • the holder 11 is made of a flexible material chosen from a group of flexible materials comprising flexible plastic, rubber and the like.
  • Figure 3 illustrates the exploded view of the holder 11 in accordance with the present invention.
  • the opening 16 as mentioned above is made at the open end of the second portion 24 of the holder 11.
  • the multiple cut-sections 18 of the opening 16 are made in such a manner to accommodate different dimensions of the filter element 20.
  • the shape of the opening 16 is not restricted to being circular but can be of any other shape comprising a spherical, a polygonal, an elliptical shape and the like as known to a person skilled in the art
  • the opening 16 has a circular shape and the opening 16 comprises multiple circumference threaded like sections, each to accommodate a filter element 20.
  • the filer element 20 is chosen from a group of filter elements comprising a neutral density filter, a color graduated filter and the like.
  • the shape of the filter element 20 as shown in the figure 1, is not restricted to a circular shape, but can be of any other shape as known to a person skilled in the art.
  • the filter element 20 filters the unwanted wavelengths of the light and allows a predefined wavelength range of light from the light source 12.
  • the filter element 20 is a neutral density filter and the predefined wavelength range being 400nm-1200nm.
  • the light source 12 comprises multiple light elements each having different wavelengths of light and when the light source 12 is switched ON, the filter element 20 filters the wavelengths of the light that is below 400nm and above 1200nm and allows only the predefined wavelength range of light to reach photodetector 14.
  • the holder 11 comprises at least two supporting members 34 positioned on sides of the second portion 24 to arrest a movement of the filter element20 in said device 10.
  • the supporting members 34 are placed between the optical guide 38 and the side surfaces of the second portion 24, such that, the filter element 20 and the holder 11 will be in a firm position.
  • the supporting members 34 are made of same material as the holder 11.
  • the supporting members 34 are made as an integral component of the device
  • the filter element 20 is integrated in the holder 11 and is made as a single component. According to another embodiment of the invention, the filter element 20 is placed externally into the holder 11 and are made as two components.
  • [0017JA method of working of the holder 11 for the bio-analyte device 10 is explained.
  • the holder 11 along with the filter element 20 is positioned inside in the device 10 into the optical guide 38 in place of the body appendage.
  • the light from the light source 12 is filtered by the filter element 20 and the predefined wavelength range is made passed through the filter element 20 towards the photo detector 14.
  • the filter element 20 and the holder 11 movements are restricted inside the device 10.
  • the supporting members 34 present in the device 10 encounters the side surface of the holder 11 and arrests the movement of the holderl 1 and the filter element 20 in the device 10.
  • the extension 36 of the first portion 22 is used to pulls-outthe holder 11 by applying a force.
  • the extension 36 of the first portion 22 acts as a handle for the user to push-in/pull-out the holder 11 into/out of the device 10 as per the requirement.
  • the error in the intensity of the light received by the photo detector is reduced, as the filter element 20 is designed to allow only a predefined wavelength range of light.
  • the usage of the holder 11 and the filter element 20 provides a cost-effective, low-maintenance solution as it does not involve any of the complicated or large components.
  • An accurate intensity of light is calculated using this holder 11 and the filer element 20, thus increasing the efficiency of the device 10.

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Mathematical Physics (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • Biophysics (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Theoretical Computer Science (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Investigating Or Analysing Biological Materials (AREA)

Abstract

L'invention concerne un support (11) qui comprend une ouverture (16) ayant de multiples sections de coupe (18), pour recevoir un élément filtre (20) dans au moins une section de coupe (18). Le support (11) est conçu pour maintenir l'élément filtre (20) dans un dispositif d'analyte biologique (10) entre une source de lumière (12) et un photodétecteur (14). Avec le support (11) décrit ci-dessus, l'erreur dans l'intensité de la lumière reçue par le photodétecteur (14) est réduite, étant donné que l'élément filtre (20) est conçu pour permettre uniquement une plage de longueurs d'onde prédéfinie de lumière.
PCT/EP2021/052672 2020-02-26 2021-02-04 Support de filtre optique pour un dispositif d'analyte biologique WO2021170364A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN202041008078 2020-02-26
IN202041008078 2020-02-26

Publications (1)

Publication Number Publication Date
WO2021170364A1 true WO2021170364A1 (fr) 2021-09-02

Family

ID=74586997

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2021/052672 WO2021170364A1 (fr) 2020-02-26 2021-02-04 Support de filtre optique pour un dispositif d'analyte biologique

Country Status (1)

Country Link
WO (1) WO2021170364A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5571935A (en) * 1978-11-24 1980-05-30 Toshiba Corp Colorimeter analyzer
DE3121060A1 (de) * 1981-05-27 1982-12-23 Boehringer Ingelheim Diagnostika GmbH, 8046 Garching "objekttraeger als teil einer photo- oder fluorometereinrichtung"
EP0973040A2 (fr) * 1998-07-17 2000-01-19 Aurora Biosciences Corporation Détecteur et dispositif de tamisage pour canaux ioniques
US20120250024A1 (en) * 2011-03-30 2012-10-04 Hitachi Plant Technologies, Ltd. Luminescence measuring apparatus and microbe counting apparatus
CN205333503U (zh) * 2016-01-29 2016-06-22 河南省计量科学研究院 浊度法抗生素效价测定仪吸光度质量监测的滤光片支架

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5571935A (en) * 1978-11-24 1980-05-30 Toshiba Corp Colorimeter analyzer
DE3121060A1 (de) * 1981-05-27 1982-12-23 Boehringer Ingelheim Diagnostika GmbH, 8046 Garching "objekttraeger als teil einer photo- oder fluorometereinrichtung"
EP0973040A2 (fr) * 1998-07-17 2000-01-19 Aurora Biosciences Corporation Détecteur et dispositif de tamisage pour canaux ioniques
US20120250024A1 (en) * 2011-03-30 2012-10-04 Hitachi Plant Technologies, Ltd. Luminescence measuring apparatus and microbe counting apparatus
CN205333503U (zh) * 2016-01-29 2016-06-22 河南省计量科学研究院 浊度法抗生素效价测定仪吸光度质量监测的滤光片支架

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