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WO2001052735A1 - Amelioration de la visibilite de sites de ponction veineuse - Google Patents

Amelioration de la visibilite de sites de ponction veineuse Download PDF

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Publication number
WO2001052735A1
WO2001052735A1 PCT/IB2001/000039 IB0100039W WO0152735A1 WO 2001052735 A1 WO2001052735 A1 WO 2001052735A1 IB 0100039 W IB0100039 W IB 0100039W WO 0152735 A1 WO0152735 A1 WO 0152735A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
filter
red
blood vessels
blue
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.)
Ceased
Application number
PCT/IB2001/000039
Other languages
German (de)
English (en)
Inventor
Paul Rosenich
Fabian Gamboni
Jakob JÜTZ
Hans-Jörg ZWEIFEL
Peter Jann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Stiftung Zur Forderung Der Erforschung und Behandlung Kindlicher Leukamien (kinderleukamiestiftung)
Original Assignee
Stiftung Zur Forderung Der Erforschung und Behandlung Kindlicher Leukamien (kinderleukamiestiftung)
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 Stiftung Zur Forderung Der Erforschung und Behandlung Kindlicher Leukamien (kinderleukamiestiftung) filed Critical Stiftung Zur Forderung Der Erforschung und Behandlung Kindlicher Leukamien (kinderleukamiestiftung)
Priority to AU30422/01A priority Critical patent/AU3042201A/en
Priority to EP01902564A priority patent/EP1248563A1/fr
Publication of WO2001052735A1 publication Critical patent/WO2001052735A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6846—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive
    • A61B5/6847—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive mounted on an invasive device
    • A61B5/6848—Needles
    • 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150015—Source of blood
    • A61B5/15003—Source of blood for venous or arterial blood
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150206—Construction or design features not otherwise provided for; manufacturing or production; packages; sterilisation of piercing element, piercing device or sampling device
    • A61B5/150274—Manufacture or production processes or steps for blood sampling devices
    • A61B5/150282—Manufacture or production processes or steps for blood sampling devices for piercing elements, e.g. blade, lancet, canula, needle
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150381—Design of piercing elements
    • A61B5/150389—Hollow piercing elements, e.g. canulas, needles, for piercing the skin
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150381—Design of piercing elements
    • A61B5/150503—Single-ended needles
    • A61B5/150511—Details of construction of shaft
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150748—Having means for aiding positioning of the piercing device at a location where the body is to be pierced
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/153—Devices specially adapted for taking samples of venous or arterial blood, e.g. with syringes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/48—Other medical applications
    • A61B5/4887—Locating particular structures in or on the body
    • A61B5/489—Blood vessels
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/44—Detecting, measuring or recording for evaluating the integumentary system, e.g. skin, hair or nails
    • A61B5/441—Skin evaluation, e.g. for skin disorder diagnosis

Definitions

  • the subject of the present patent application is an improvement for the determination of venipuncture sites using a non-invasive optical method.
  • This non-invasive visualization of blood vessels can also be used in general in surgical microscopy.
  • the procedure offers the advantage of non-invasive location of blood vessels compared to conventional punctures in infants, which are often associated with complications. Clinical studies on students showed that this procedure can be used for simple and effective visual determination of venipuncture sites.
  • Purpose to improve visibility and a. of blood vessels and finding suitable puncture sites.
  • the vein course is examined by means of infrared light (> 600 nm) and the vein puncture site can thus be identified.
  • the infrared system is based on the fact that the vein is slightly warmer than its surroundings due to the blood flow. This enables the vein to be displayed. With this procedure, however, a monitor is necessary to see the vein.
  • the combination of certain light colors or the best possible exclusion of certain light colors when illuminating or when viewing the patient are presented as measures according to the invention.
  • Cones of light are generated by the two light sources, which meet at an angle between 2 ° -20 °,
  • the inclination of the light sources can be selected so that their light cones meet optimally in the treatment area (puncture point), so that mixed lighting (magenta) from both light sources occurs there,
  • the luminosity of the two light cones can e.g. via electronic brightness controller (advantage: via chopper controller only the brightness changes and not the light color) or gray filter can be selected differently,
  • Interference filters are usually selected as the filter for generating red and blue light. These interference filters often do not filter out wavelengths of yellow and green light in the border area. It is possible to tilt the filter to prevent such undesired self-creation. The fine adjustment of the angle of the filters can be adjusted for each eye independently via the swiveling frame,
  • a magenta filter in addition to a red and a blue filter in combination or as an alternative, a magenta filter can also be used; in the alternative, a conventional lighting with light across the entire light spectrum can be used (e.g. an operating theater lamp),
  • a heat protection filter or UV filter can also be inserted into the filter device as required, • the light can be polarized via an additional polarization filter, which also enables advantageous effects:
  • the filter glasses could be provided with an enlargement device (microscope with magenta filter).
  • the combination of color filters and polarization filters lead to a sharp demarcation from ambient light and thus to a more precise adjustment of the light wavelengths effective on the eye.
  • the structure shown in Fig. 1 can be used either as such without a filter or in combination with filters as glasses. Another application is the use of filter glasses without an integrated light source.
  • various optical filters are specified according to the invention for better visual determination of vein puncture sites.
  • Successful filters or appropriately trained light sources have little or no light intensity in the green / yellow range, but a normal light intensity in the red and blue range.
  • the area red is preferably stronger in intensity than the area blue.
  • magenta in particular a magenta interference filter is preferred.
  • the light intensity and the optical properties of the light source must also be taken into account.
  • different light sources with different light intensities are possible, the light sources being said to dominate red and blue light simultaneously (for example a lamp with blue light and a lamp with red light Light when both light rays are oriented towards the venipuncture point) or band filter in front of a lamp with a normal light spectrum, e.g. halogen lamp.
  • the puncture site is illuminated by an intensive, adjustable halogen lamp and the puncturing person looks at the puncture site through "magenta glasses”.
  • the spectral filter effect can be shifted over a wide range by the user tilting the filter (the glasses or the head). This allows a fine adjustment depending on the color vision effect of the user or on the property of the skin of the person to be punctured.
  • the puncture site is e.g. illuminated with a halogen lamp, the puncturing person viewing the puncture site with filter glasses.
  • the light source is already coupled to one or more filters.
  • the filter glasses from Fig. 2 shows a glasses frame for receiving a bandpass filter, as well as glasses and cover plates, which serve to reduce reflection. There is also the option of individually adjusting the angle between the temple and the frame to regulate the fine adjustment of the filter.
  • the filter glasses and the colored injection needles can be combined with advantage, but they can also be used advantageously independently of one another, for example in connection with manipulations on a human or animal body.
  • glasses with a magenta filter can also have light sources that throw normal or filtered light onto the treatment site.
  • the invention is not restricted to the puncture problem, but can be used wherever the aim is to increase the visibility of blood vessels - for example also in surgical microscopy or the like.
  • FIG. 1 is a view of a symbol drawing of a complete lighting device according to the invention.
  • FIG. 2 shows a view of an example of filter glasses according to the invention for an observer with a single bandpass filter
  • FIG. 3 shows a variant of FIG. 2 with two bandpass filters
  • FIG. 4 shows a development of FIG. 2 or FIG. 3 with additional polarization filters
  • Fig. 6 shows an example of a particularly suitable filter
  • FIG. 7 shows an exemplary embodiment of a lighting device according to the invention.
  • FIG. 1 symbolically shows the new construction of an illumination device according to the invention with two light sources 1a and 1b.
  • These are conventional light sources with the widest possible light spectrum, for example halogen filament lamps or - for the purpose specified in more detail below - a light source specially selected for each light cone 5a or 5b, each with a large proportion of the light color in question.
  • the two light cones 5a, 5b which each have the most directional light possible (light cone with, for example, approximately 2 ° -20 °, in particular 5 ° -10 °, eg approximately 8 ° opening angle), of the two light sources 1a, 1b are in relation to one another inclined that they intersect in the treatment area (eg puncture site), so that mixed light illumination from the two light sources 1a and 1b occurs in the treatment area.
  • there is red light in the light cone 5b due to a filter 12.
  • the luminous intensities in the two luminous cones 5a and 5b may be different and / or adaptable to the respective need.
  • electronic brightness controllers 2c and 2b are provided for this purpose, which enable the brightness to be changed without changing the light color (current regulation) (chopper control).
  • replaceable or adjustable gray filters could also be provided in front of at least one of the light sources 1a and 1b.
  • only one brightness control 2b or 2c could also be provided.
  • a further brightness controller 2a is provided for common brightness control.
  • the light sources 1a and 1b are connected to the brightness controllers 2a-c via lines 3a-c.
  • Filters 11 and 12 are preferably designed as interference filters. With their filter effects, they show at least in the border area to the yellow-green area of the
  • the filters 11 and 12 can preferably be tilted. Tilting devices 7a and 7b indicate this.
  • the light cones 5a and 5b are optionally adjustable relative to one another about a pivot axis 6, so that the interface of the two light cones can be varied.
  • the polarization filters 10 are preferably rotatable - possibly for each color or for each light cone 5a or 5b - by means of a rotating device 8a or 8b, i.e. the polarization level is adjustable.
  • the structure according to FIG. 1 is thus a lighting system that can be optimized according to a wide variety of parameters, which allows an observer to have optimal lighting conditions when viewing the blood vessels.
  • these parameters are given as examples:
  • Fig. 1 The structure according to Fig. 1 can be used alone or in connection with filters for the viewer (filter glasses). Conversely, filter glasses can also be used without lighting according to Fig. 1.
  • the advantage in the simultaneous use lies in the sharp delimitation and exclusion of any ambient light at the point under consideration and in a more precise adjustability of the light colors that are ultimately approved or effective on the eye.
  • a further development that could improve the situation when puncturing with an injection needle is the use of colored injection needles. This could improve their visibility in the tissue, so that a user can not only see the blood vessels better, but also the needles inserted into the tissue, and thereby improve their guidance.
  • a part of the invention that is independent of the rest therefore provides colored and / or non-reflective injection needles, the colors being primarily dark shades from black to brown to red, green or blue.
  • the coloring of the needles can be accomplished by alloying or surface modification or coating. Suitable processes are known to the metallurgical experts.
  • FIG. 2 symbolically shows filter glasses with a glasses frame 15a for receiving a bandpass filter 13 (magenta) and with glasses arms 14a and 14b and with cover flaps 17a and 17b.
  • a bandpass filter 13 magenta
  • the angle 16a between the eyeglass frame 15a and the eyeglass temples 14a or 14b can preferably be adjusted, which leads to an individual change in the filter characteristic if the filter 13 is designed as an interference filter.
  • This swivel angle setting can be omitted where the user carries out this fine adjustment of the filter characteristic by swiveling his head.
  • the cover flaps a, b serve, in particular in the case of interference filters, to reduce disturbing reflections on the inside of the filter 13.
  • FIG. 2 and / or FIG. 3 also apply to the structure according to FIG. 4, which additionally also has polarization filters 10, with the aid of which, as stated above, disruptive reflection properties on the skin can be minimized.
  • Hesse can also individually adjust the brightness for each eye if the light sources 1a and 1b themselves also emit polarized light, as indicated above as an option.
  • the polarization filters 10 are preferably individually adjustable, as indicated symbolically by arrows.
  • the eyeglass frame 15d is designed accordingly.
  • the lighting device shown in FIG. 7 is used to examine the various filters. This attempt cannot be considered a reference for a decision. Because the visibility of the veins is examined by a person and felt good or less good. This experiment is therefore purely empirical and serves to pre-examine the filter. In addition, filters that bring no improvement at all can be quickly sorted out. Filters that bring an improvement, however, can subsequently be examined more closely with the spectrophotometer.
  • This device is used to investigate the greatest change with a soft spectral filter.
  • a halogen lamp from Spindler & Hoyer from Göttingen was used for this experiment.
  • This halogen lamp is designed as a directional lamp. It is designed for a halogen light bulb with a two-pin base. The lamp can be operated either with 12V / 50W or with 12V / 100W. However, this depends on the halogen bulb.
  • a, 1b light source a, 2b, 2c brightness controller (preferably chopper without changing the light color) a, 3b, 3c supply line a, 4b filter device a, 5b light cone swivel axis optional a, 7b tilting device for interference filter; optional a, 8b rotating device for polarization filters; optional heat protection filter optional 0 polarization filter optional 1 filter for blue, preferably interference filter 2 filter for red, preferably interference filter (filters 11 and 12 are interchangeable or interchangeable) 3 filters for magenta, preferably interference filter 4 glasses bracket a, b only symbolic shape for glasses holder on Head 5a glasses frame 5b, 15c partial glasses frame 5d glasses frame with frame for additional polarizing filter; Optionally, a separate polarization filter 6a, 16b, 16c swivel angle 7a, 17b cover flaps for each eye

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Medical Informatics (AREA)
  • Veterinary Medicine (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Public Health (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Physics & Mathematics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Hematology (AREA)
  • Manufacturing & Machinery (AREA)
  • Vascular Medicine (AREA)
  • Eye Examination Apparatus (AREA)

Abstract

L'invention concerne l'utilisation d'un filtre optique, une paire de lunettes, un dispositif, un ensemble et un microscope pour améliorer la visibilité de veines ou similaires sur une partie du corps d'un animal ou d'un être humain. Dans un mode de réalisation préférée de l'invention, une source lumineuse sert à obtenir un éclairage orienté sur la zone du site de ponction, et une paire de lunettes à effet filtrant sert à atténuer la visibilité gênante du tissu environnant.
PCT/IB2001/000039 2000-01-17 2001-01-17 Amelioration de la visibilite de sites de ponction veineuse Ceased WO2001052735A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU30422/01A AU3042201A (en) 2000-01-17 2001-01-17 Improved visualisation of venous injection sites
EP01902564A EP1248563A1 (fr) 2000-01-17 2001-01-17 Amelioration de la visibilite de sites de ponction veineuse

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
CH116/00 2000-01-17
CH1162000 2000-01-17
CH1362000 2000-01-21
CH136/00 2000-01-21
CH2322000 2000-02-05
CH232/00 2000-02-05

Publications (1)

Publication Number Publication Date
WO2001052735A1 true WO2001052735A1 (fr) 2001-07-26

Family

ID=27176658

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2001/000039 Ceased WO2001052735A1 (fr) 2000-01-17 2001-01-17 Amelioration de la visibilite de sites de ponction veineuse

Country Status (3)

Country Link
EP (1) EP1248563A1 (fr)
AU (1) AU3042201A (fr)
WO (1) WO2001052735A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002035994A1 (fr) * 2000-11-02 2002-05-10 Universitat Autonoma De Barcelona Dispositif d'eclairage permettant une meilleure visualisation des vaisseaux sanguins superficiels et des alterations cutanees
WO2005079662A1 (fr) * 2004-02-19 2005-09-01 Nederlandse Organisatie Voor Toegepast- Natuurwetenschappelijk Onderzoek Tno Imagerie de structures enterrees

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03111039A (ja) * 1989-09-26 1991-05-10 Olympus Optical Co Ltd レーザ治療装置
US5947906A (en) * 1997-11-14 1999-09-07 Dawson, Jr.; Fredric O. Apparatus for enhanced visual venous examination

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03111039A (ja) * 1989-09-26 1991-05-10 Olympus Optical Co Ltd レーザ治療装置
US5947906A (en) * 1997-11-14 1999-09-07 Dawson, Jr.; Fredric O. Apparatus for enhanced visual venous examination

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 015, no. 302 (C - 0855) 2 August 1991 (1991-08-02) *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002035994A1 (fr) * 2000-11-02 2002-05-10 Universitat Autonoma De Barcelona Dispositif d'eclairage permettant une meilleure visualisation des vaisseaux sanguins superficiels et des alterations cutanees
ES2170019A1 (es) * 2000-11-02 2002-07-16 Univ Barcelona Autonoma Dispositivo de iluminacion para un mejor visualizacion de vasos sanguineos superficiales y alteraciones cutaneas.
WO2005079662A1 (fr) * 2004-02-19 2005-09-01 Nederlandse Organisatie Voor Toegepast- Natuurwetenschappelijk Onderzoek Tno Imagerie de structures enterrees

Also Published As

Publication number Publication date
EP1248563A1 (fr) 2002-10-16
AU3042201A (en) 2001-07-31

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