EP2575618A2 - Optische sonde mit sondenkopf und sonden-ferrule - Google Patents
Optische sonde mit sondenkopf und sonden-ferruleInfo
- Publication number
- EP2575618A2 EP2575618A2 EP11781728.8A EP11781728A EP2575618A2 EP 2575618 A2 EP2575618 A2 EP 2575618A2 EP 11781728 A EP11781728 A EP 11781728A EP 2575618 A2 EP2575618 A2 EP 2575618A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- probe
- head
- face
- ferrule
- optical
- 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.)
- Withdrawn
Links
- 239000000523 sample Substances 0.000 title claims abstract description 136
- 230000003287 optical effect Effects 0.000 title claims abstract description 47
- 238000000034 method Methods 0.000 claims abstract description 6
- 239000002313 adhesive film Substances 0.000 claims description 22
- 230000001070 adhesive effect Effects 0.000 claims description 7
- 238000011156 evaluation Methods 0.000 claims description 7
- 239000002086 nanomaterial Substances 0.000 claims description 7
- 239000000853 adhesive Substances 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 238000002211 ultraviolet spectrum Methods 0.000 claims description 2
- 239000004020 conductor Substances 0.000 claims 2
- 239000011888 foil Substances 0.000 claims 1
- 238000005259 measurement Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 239000013307 optical fiber Substances 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000003595 spectral effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000006213 oxygenation reaction Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
- A61B5/1455—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue using optical sensors, e.g. spectral photometrical oximeters
- A61B5/1464—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue using optical sensors, e.g. spectral photometrical oximeters specially adapted for foetal tissue
-
- 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
- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
- A61B5/6813—Specially adapted to be attached to a specific body part
- A61B5/6814—Head
Definitions
- the present invention relates to an optical probe having a probe head and a probe ferrule and a method for producing such an optical probe.
- optical probes are well known. Optical probes are used for many purposes. In medicine, there are a variety of optical probes with probe head and a probe ferrule. They can all be held on an object or on a body part of a patient so that the signals to be measured are received via the probe head and directed via an optical waveguide to a measuring and evaluation unit. In the rule, the probe head is held at the measuring position or mechanically fixed at the measuring position. The measurement is then continuous or discontinuous, as needed.
- an optical probe with a probe head and a probe ferrule must be securely attached to a child's head before or at the latest while the child is in the birth canal.
- a "loose" positioning by hand or positioning by mechanical aids is not possible in such an application.
- the object of the present invention is to provide an optical probe with a probe head and a probe ferrule, which can be attached to a curved surface.
- the probe ferrule has a concave end face, in which the probe head is fitted, and that the probe ferrule has a fastening device with which the concave end face can be detachably fastened to a curved object.
- the probe head is arranged in the center of the concave end face. Due to the central location of the probe head in the concave face, the position of the probe head on the curved object is optimally stabilized by the concave environment of the center.
- a further advantage of the present invention is that the concave end face is formed on a cone-shaped widened attachment end of the probe ferrule.
- the concave end face can be adapted in size to the curved object on which it is to be fixed.
- the optical probe remains handy overall and has only at one end of attachment to a slightly larger extent.
- a particular advantage is that the fastening device is attached to a circumference of the concave end face adhesive film.
- Such an adhesive film is yielding and adapts to unevenness of the curved object. Thereby, a tight connection can be ensured even in the vicinity of the central probe head in the concave face. This is particularly important when the domed object is the head of a child moving through the birth canal during a birthing process.
- the compliance is achieved in particular by the fact that the adhesive film is attached to the circumference of the concave end face and thus is freely movable toward the center of the concave end face in the context of bias.
- a further advantage of the present invention is that the adhesive film is concave on the circumference of the concave end face and has a through hole for the probe head.
- the adhesive film fully absorbs the domed surface of the object and, in the attached state, holds it in direct contact with the probe head when in the through hole.
- the adhesive sheet prefferably be snugly abutted against the probe head when the probe head is in the through hole and the concave face is secured to a domed object. This increases the measuring accuracy.
- the probe head is a plane probe Having face.
- plane design of the probe end face of the probe head a defined light emission and light entry via the probe end face in the curved object is possible.
- the planar design of the probe end face thus has an immediate effect on the measurement accuracy.
- planar probe end face is arranged flush with an outer side of the adhesive film. So it should not only be a flush with the concave face, but, if possible, a flush with the adhesive film outside. This optimizes the contact between the probe face and the curved object.
- the probe ferrule comprises a guide tube and a mounting head, which can be firmly connected to each other.
- a prefabrication of the probe ferrule with at least one light guide is possible, on which then a pre-use for the use of a predetermined mounting head can be placed.
- standardized probe ferrules with guide tube and light guides can be manufactured and provided with individual mounting heads.
- the probe head is located at a front end of the guide tube.
- a latching device is provided at the front end of the probe head. It is favorable that an automatic latching between the front end of the probe head and the mounting head is possible.
- Another advantage is that a shoulder is formed on the circumference of the guide tube, which limits an insertion depth of the front end of the guide tube in the mounting head. As a result, the position of the planar probe head in flush alignment with the adhesive film can be achieved accurately and easily.
- the adhesive film outside has a nanostructure and the adhesive effect is determined by the nanostructure.
- the head of a child should not be burdened with a chemical adhesive or a coarse mechanism.
- the use of nanostructured adhesive films and adhesion caused by the nanostructure results in strong adhesion but low peel force on the child's head. This minimizes the risk of injury to the child's head.
- the optical fiber works in the UV spectrum. By using a UV optical waveguide, data from the child can be determined during use in obstetrics, which after an evaluation provide information about the child's oxygen supply.
- the at least one optical waveguide is connected by cable to a measuring and evaluation unit.
- the fastening head has the conical extension with the concave end face.
- different mounting heads with different conical extensions can be connected before use with the guide tube and the probe head.
- a probe ferruy with an integral prefabricated optical fiber is inserted into a mounting head until a peripheral shoulder abuts the probe ferrule to the mounting head, the probe ferrule being fastened to the mounting head by a latching device ,
- Fig. 1 is a longitudinal view partly in section, of a guide tube of a probe Ferruie for an optical probe according to the present invention
- Fig. 2 is a front view of the guide tube of Figure 1, as a cross section.
- Fig. 3 is a longitudinal view, partially in section, of a mounting head for connection to the guide tube of Fig. 1;
- Fig. 4 is a front view of the mounting head of Fig. 3, as a cross section.
- An optical probe 1 in the present embodiment comprises a probe ferrule 3 composed of a guide tube 5 and a fixing head 7.
- Fig. 1 is a longitudinal view, partially in section, of the guide tube 5 is shown schematically.
- the guide tube 5 has in the present embodiment, a central through hole 9, in which an optical waveguide 1 1 is used, which operates in the UV spectral range.
- other optical fibers 11 may be used.
- Fig. 1 is a probe head 13 with a plan, if necessary, polished probe end face 13.1 on the left side.
- On the right side of the optical waveguide 11 occurs wired (not shown) and is connected to a measuring and evaluation unit (not shown).
- the measuring and evaluation unit and the Lichtwellen- ieiter 11 are not essential to the invention per se, so that their operation and design will not be described here.
- the left side of the guide tube 5 is hereinafter referred to as front end 14.
- a latching device 17 is shown with a plurality of notches 17.1. In the present embodiment, five notches 17.1 are shown.
- the detents 17 are inclined from the front end 14 towards the rear obliquely rising nose, which fall approximately perpendicularly at its front end 14 side and form "barbs."
- the guide tube 5 has at its periphery at a defined distance from the probe end face 17.1 a Shoulder 19 up.
- the guide tube 5 is shown in a view in cross section. In the center is the through hole 9 with at least one optical waveguide 11 for UV light.
- the guide tube 5 has a round in section geometry with different radii along its length. This is illustrated by the various circles in FIG.
- the guide tube 5 is made of a metal, for example, aluminum, nickel steel or the like.
- other materials may also be suitable, e.g. Plastic or ceramic.
- the optical waveguide 11 or the at least one optical waveguide 11 may in other embodiments also be suitable for other spectral ranges of the light.
- Fig. 3 is shown schematically in side view and partly in section of the mounting head 7, in which the front end 14 of the guide tube 5 is inserted to the shoulder 15.
- the fastening head 7 widens conically in the direction of the probe head 13 in the present embodiment and forms a cup-shaped end 20.
- the cup-like end 19 has on the inside a convex end face 21 into which the probe head 13 is fitted. Due to the central through-hole 9 of the guide tube 5, the probe head is in the center of the convex and in the present embodiment circular face.
- an adhesive film 25 is attached, in the center of which a through hole 29 (FIG. 4) is formed.
- the adhesive film 25 is a fastening film with a nanostructure (not shown) at least on the outside of the film 25.1.
- the nanostructure serves for the adhesive-free attachment of the kaven face üi on a curved object, in particular on the head of a child during a birth process.
- the adhesive film 25 is also preferably slightly concave clamped on the circumference 23 or jose clamped and is flexible and slightly stretchable. It lies in the attached state of the mounting head 7 on a curved object on the concave end face 21 and preferably also adheres to this. In this state, the adhesive film 25 encloses the plane probe end face 13. 1 of the probe head 13 tightly, whereby it rests freely on the arched object. The piane probe face 13.1 of the probe head 13 is flush with the adjacent adhesive film 25. In this way, a close contact between the planned probe end face 13.1 of the probe head 13 and the curved object is produced.
- the approximation of the curved object or child's head to the concave end face 21 is slightly controlled, guided and damped.
- the Haftfoiie 21 "catches" the arched object, so to speak, and brings it into contact with the probe end face 13.1.
- Fig. 3 the self-locking latching of the notches 17.1 is shown in corresponding receptacles 30 of the mounting head 7.
- the shoulder 15 of the guide tube 5 abuts in the assembled state at a termeante 31 of the mounting head 7, which is formed on a pipe end piece 32 of the mounting head 7.
- the penetration depth of the front end 1 is precisely defined in the mounting head 7.
- the probe head 13 with the planar probe end face 13.1 could also be located outside the center of the concave end face 21.
- the through hole 29 would not be in the center 27 of the adhesive sheet 25, but be adapted in position to the position of the probe head 13.
- the guide tube 5 and the mounting head 7 are made of a metal. In other embodiments, however, other materials may also be used.
- the at least one optical waveguide 1 1 is glued in the guide tube and glued in particular with medically approved adhesives.
- the planar end face 13.1 of the probe head 13 with the at least one optical waveguide 11 is preferably polished, so that a smooth exit surface for UV radiation or a radiation selected for the specific field of application is given.
- the guide tube 5 with the Probe head 13 combined in prefabricated construction with an individual prefabricated mounting head 7.
- the fastening heads 7 differ in the circumference 23 or in the diameter or radius and possibly also in their geometry.
- the suitable for the particular application mounting head 7 is inserted with a pipe extension piece 32 on the front end 14 of the guide tube 5 until the end edge 31 abuts the shoulder 15 and prevents further movement. Due to the locking connection of the mounting head 7 is firmly seated on the guide tube 5, so that the probe ferrule is then operational when the measuring and evaluation unit (not shown) is turned on.
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Heart & Thoracic Surgery (AREA)
- Molecular Biology (AREA)
- Veterinary Medicine (AREA)
- Biophysics (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Public Health (AREA)
- Medical Informatics (AREA)
- General Health & Medical Sciences (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- Optics & Photonics (AREA)
- Pediatric Medicine (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
- Mechanical Coupling Of Light Guides (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP11781728.8A EP2575618A2 (de) | 2010-06-01 | 2011-05-31 | Optische sonde mit sondenkopf und sonden-ferrule |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP10005665 | 2010-06-01 | ||
EP11781728.8A EP2575618A2 (de) | 2010-06-01 | 2011-05-31 | Optische sonde mit sondenkopf und sonden-ferrule |
PCT/DE2011/001179 WO2011150919A2 (de) | 2010-06-01 | 2011-05-31 | Optische sonde mit sondenkopf und sonden-ferrule |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2575618A2 true EP2575618A2 (de) | 2013-04-10 |
Family
ID=44936124
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11781728.8A Withdrawn EP2575618A2 (de) | 2010-06-01 | 2011-05-31 | Optische sonde mit sondenkopf und sonden-ferrule |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2575618A2 (de) |
DE (1) | DE112011104055A5 (de) |
WO (1) | WO2011150919A2 (de) |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2830412A1 (de) * | 1978-07-07 | 1980-01-17 | Erich Prof Dr Med Saling | Geraet zum ansetzen von abnehmern an koerpern |
US5419322A (en) * | 1993-07-22 | 1995-05-30 | Joseph; Barry M. | Internal apparatus for continuous electrical and oximetric intrapartum monitoring of the fetus |
US5474065A (en) * | 1994-04-04 | 1995-12-12 | Graphic Controls Corporation | Non-invasive fetal probe |
DE19631577C2 (de) * | 1996-07-26 | 1999-05-27 | Werner Dr Schramm | Anordnung zur Überwachung eines Feten während der Geburt |
AU2002322606A1 (en) * | 2001-07-25 | 2003-02-17 | Argose, Inc. | Optical coupler for measuring tissue fluorescence |
-
2011
- 2011-05-31 DE DE112011104055.5T patent/DE112011104055A5/de not_active Withdrawn
- 2011-05-31 WO PCT/DE2011/001179 patent/WO2011150919A2/de active Application Filing
- 2011-05-31 EP EP11781728.8A patent/EP2575618A2/de not_active Withdrawn
Non-Patent Citations (1)
Title |
---|
See references of WO2011150919A2 * |
Also Published As
Publication number | Publication date |
---|---|
WO2011150919A3 (de) | 2012-04-19 |
WO2011150919A2 (de) | 2011-12-08 |
DE112011104055A5 (de) | 2014-04-10 |
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Legal Events
Date | Code | Title | Description |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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17P | Request for examination filed |
Effective date: 20121220 |
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AK | Designated contracting states |
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DAX | Request for extension of the european patent (deleted) | ||
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
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RIC1 | Information provided on ipc code assigned before grant |
Ipc: A61B 5/00 20060101ALI20140702BHEP Ipc: A61B 5/1464 20060101AFI20140702BHEP |
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INTG | Intention to grant announced |
Effective date: 20140717 |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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18D | Application deemed to be withdrawn |
Effective date: 20141128 |