EP0708669A1 - Procede permettant d'acceder a une veine et dispositif de mise en oeuvre dudit procede - Google Patents

Procede permettant d'acceder a une veine et dispositif de mise en oeuvre dudit procede

Info

Publication number
EP0708669A1
EP0708669A1 EP95917900A EP95917900A EP0708669A1 EP 0708669 A1 EP0708669 A1 EP 0708669A1 EP 95917900 A EP95917900 A EP 95917900A EP 95917900 A EP95917900 A EP 95917900A EP 0708669 A1 EP0708669 A1 EP 0708669A1
Authority
EP
European Patent Office
Prior art keywords
vein
light
cutting device
skin surface
access
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
EP95917900A
Other languages
German (de)
English (en)
Inventor
Helmut Vetter
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.)
Apotheker Vetter and Company Arzneimittel GmbH Ravensburg
Original Assignee
Apotheker Vetter and Company Arzneimittel GmbH Ravensburg
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 Apotheker Vetter and Company Arzneimittel GmbH Ravensburg filed Critical Apotheker Vetter and Company Arzneimittel GmbH Ravensburg
Publication of EP0708669A1 publication Critical patent/EP0708669A1/fr
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/18—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves
    • A61B18/20—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using laser
    • A61B18/22—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using laser the beam being directed along or through a flexible conduit, e.g. an optical fibre; Couplings or hand-pieces therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/32—Surgical cutting instruments
    • A61B17/3209—Incision instruments
    • A61B17/32093—Incision instruments for skin incisions
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/18—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves
    • A61B18/20—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using laser
    • A61B18/22—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using laser the beam being directed along or through a flexible conduit, e.g. an optical fibre; Couplings or hand-pieces therefor
    • A61B18/24—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using laser the beam being directed along or through a flexible conduit, e.g. an optical fibre; Couplings or hand-pieces therefor with a catheter
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters

Definitions

  • the invention relates to a method for creating a vein access, in particular on the human body, in which first the skin surface surrounding the area of the vein access is disinfected, then the epidermis is penetrated and the vein is opened and finally a cannula part is inserted into the vein.
  • the invention further relates to a device for performing this method.
  • the penetration of the epidermis and opening of the vein in a purely mechanical way can have an adverse effect on the venous access, so that this can, under certain circumstances, for. B. earlier than due to infections provided must be removed.
  • the healing process that begins after removal of the venous access can also be adversely affected by this.
  • the invention has for its object to improve the method of the type mentioned in medical terms and also to make it more pleasant for the patient.
  • the invention is also based on the object of providing an apparatus for carrying out this method.
  • the object is achieved in that the penetration of the epidermis and / or the opening of the vein is carried out by a cutting device working with electromagnetic radiation.
  • the advantage achieved by the invention consists essentially in the fact that the use of the electromagnetic radiation which is already advantageously used in other medical fields enables tissue to be cut with more favorable results and, moreover, has a positive influence on subsequent healing.
  • the wavelength of the electromagnetic radiation is in the range of visible light or in the range adjacent to it.
  • the invention further provides that the cutting device is first adjusted by means of a measuring device which selectively responds to blood vessels and is fixed in its adjusted position on the skin surface. This ensures that the vein can be observed without the ones that are frequently observed according to the previous technology Failed attempts are made immediately.
  • a locally acting anesthetic is applied in the region of the epidermis to be penetrated before the cutting device is used. This is particularly easy to use if the anesthetic is applied by attaching the cutting device to the surface of the skin.
  • connection part to be fastened to the skin surface, which has one or more attachment pieces for connecting syringes, infusion tubes or the like, and carries a cannula part, through which access, in particular to a vein, is created, solved in that the connecting part has a cutting device working with electromagnetic radiation.
  • This cutting device expediently works with light of high energy in the visible or adjacent wavelength range. It is further to be regarded as advantageous if the cutting device works with monochromatic light.
  • the cutting device is formed by a light-conducting element to which a light source is connected.
  • the light-conducting element can expediently from one
  • the sleeve part can have one or more optical guide rods.
  • the sleeve part has two optical guide rods, which are diametrically opposed. This enables a linear cut to be made between the two guide rods.
  • the invention provides that one end of the optical guide rod or rods open into one of the extension pieces. Then there is still the possibility that the connection of the optical guide rod (s) to the light source takes place through a connection line which can be connected to the extension piece and is provided with optical fibers.
  • the cannula part is arranged to be longitudinally displaceable in the sleeve part.
  • an adjusting element for the axial displacement of the cannula part is further provided in the connecting line on the side to be connected to the extension piece.
  • connection part for attachment to the skin surface is expediently provided with an adhesive film.
  • a connector in the form of a better connection between the connector and the adhesive film Ball section is provided, in which the connecting part is embedded with its end creating the venous access, the adhesive film being in contact with the flat surface of the ball section. It has also proven to be advantageous if the adhesive film carries a cushion impregnated with an anesthetic in the region of the end of the connecting part that creates the vein access. Then it is further recommended that the adhesive film is provided with a removable protective film on the side coming into contact with the skin surface.
  • a measuring device for adjusting the cutting device to the vein to be provided with access.
  • This measuring device advantageously has a measuring light source and a detector which selectively records the measuring signal transmitted or reflected on the skin surface.
  • the output signal of the detector is an analog, digital or fuzzy logic device
  • the evaluation unit can have an optical and / or acoustic signal transmitter which indicates the orientation of the cutting device on the vein to be provided with an access.
  • a light guide extending through the cannula part is advantageously provided for transmitting the measurement signal transmitted or reflected on the skin surface to the detector.
  • the light guide can transmit both the measurement light and the transmitted or reflected measurement signal to the detector provided and for this purpose be guided via an optical beam splitter, via which the measuring light is coupled into the light guide and the measuring signal to be fed to the detector is coupled out.
  • the light source for the cutting device is advantageously formed by a laser of a suitable wavelength.
  • a laser of suitable wavelength can also be provided as the measuring light source.
  • the light source for the cutting device and the measuring light source are formed by a common laser whose output power and / or wavelength can be adjusted.
  • the measuring device has an ultrasonic transmitter and
  • Ultrasonic receiver for determining the position and depth of the vessel to be punctured. All ultrasound measurement methods customary in medical technology can be used here, by means of which the position of the vessel to be punctured can be made visible or can be made recognizable for any automatically operating control devices.
  • FIG. 2 shows the connection part of the device to be fastened on the skin surface
  • 3 shows the object according to FIG. 2, but with the connecting line attached
  • Fig. 4 shows the object of FIG. 3, but with an optical fiber inserted for
  • 11 and 12 are schematic representations of two embodiments of the entire device
  • FIG. 14 shows the object according to FIG. 4, but with an additional adapter for an external ultrasound device or a laser.
  • the device shown in the drawing is used to create a vein access, in particular on the human body, in which, according to FIG. 1, the skin surface 1 surrounding the area of the vein access is first disinfected, for example by means of a spray can 2. Subsequently, according to previous practice, the epidermis 3 is penetrated with a cannula and the vein 4 is opened, with an - elastic - cannula part 5 being inserted into the vein 4 at the same time. Since such vein accesses are not only created for a short time, but for longer periods, the penetration of the epidermis 3 and the opening of the vein 4 should take place in the most gentle manner possible.
  • Cutting device 6 This cutting device 6 is provided on a connecting part 7 to be fastened on the skin surface 1, which has one or more extension pieces 8 for connecting syringes 9,
  • connection part 7 is provided with the cannula part 5, through which access to the vein 4 is created.
  • the cutting device 6 works with light of high energy in the visible or adjacent
  • Wavelength range it being particularly advantageous if the cutting device 6 works with monochromatic light.
  • the cutting device 6 itself is formed by a light-guiding element 11, to which a corresponding light source 12 is connected.
  • the In the exemplary embodiment, light-guiding element 11 is formed by a sleeve part which surrounds the cannula part 5.
  • This sleeve part can have one or more optical guide rods in a manner not shown in the drawing. If the sleeve part is provided with two optical guide rods, these are expediently diametrically opposed to one another in order to produce a corresponding cutting line.
  • the entire sleeve part is designed as an optical guide rod. In this case, there is a circular, or in the case of an oblique arrangement of the attachment piece 8, as is provided in the exemplary embodiment, an oval sectional image on the skin surface 1.
  • the one end of the optical guide rod (s) facing away from the skin surface 1 opens into one of the extension pieces 8.
  • the connection of the optical guide rod (s) to the light source 12 can then take place by means of a connecting line 14 which can be connected to the extension piece 8 and is provided with optical fibers 13 , as can be seen, for example, from FIGS. 4 to 6.
  • the optical fibers 13 couple in the attachment 8 to the optical guide rods or the sleeve part.
  • the cannula part 5, which is in its retracted position in FIG. 2 and is protected by a closure cap 15 placed on the extension piece 8, is arranged to be longitudinally displaceable in the sleeve part, so that after opening of the vein 4 as shown in FIG. 6 can be inserted into this.
  • an adjusting element 16 is provided in the connecting line 14 on the side to be connected to the attachment piece 8, which controls the axial displacement of the cannula part from the outside enables.
  • connection between the connecting part 7 and the adhesive film 17 takes place via a connecting piece 18 which has the shape of a spherical section.
  • the connector 7 is embedded with its end providing the venous access, while the adhesive film 17 lies against the flat surface of the spherical section.
  • the adhesive film 17 carries a cushion 26 impregnated with an anesthetic. After the connecting part 7 has been applied to the skin surface 1, it is therefore necessary to wait before opening the vein 4 until the anesthetic acts. This is how a venous access can be laid in a completely painless way. As shown in FIG. 2, the adhesive film 17 is provided with a removable protective film 19 on its side that comes into contact with the skin surface 1.
  • a measuring device 20 which enables the cutting device 6 to be adjusted.
  • the measuring device 20 has a measuring light source 21 and a detector 22 which selectively records the measuring signal transmitted or reflected on the skin surface.
  • This measuring device 20 thus makes the principle of so-called photoelectric plethysmography Use.
  • the output signal of the detector 22 is then fed to an evaluation unit, not shown in the drawing, which operates analog, digital or by means of fuzzy logic.
  • This evaluation unit can have an optical and / or acoustic signal generator which indicates the alignment of the cutting device 6 with the vein 4 to be provided with the access.
  • a beam splitter 24 is provided, via which the measurement light is coupled into light guide 23 and the measurement signal to be supplied to detector 22 is coupled out.
  • a laser of a suitable wavelength which is only indicated in the drawing, is provided as the light source 12 for the cutting device 6.
  • the measuring light source 21 can also be formed in a corresponding manner by a laser of a suitable wavelength, but with a comparatively lower power.
  • the light source 12 for the cutting device 6 and the measuring light source 21 are formed by a common laser whose output power and / or wavelength can be adjusted.
  • the light can be transmitted to the skin surface 1 as shown in FIG. 11, while a light guide 23 guided centrally in the connecting line 14 according to FIG. 12 can be used to transmit the measurement signal to the detector 22.
  • the beam splitter 24 shown in FIG. 12 could be omitted.
  • the skin surface is first disinfected in the usual way according to FIG. 1. It can
  • Disinfectants have a composition such that it accelerates the anesthetic arranged in the cushion 26. Then the connecting line 14 is connected to the extension 8 according to FIG. Fig. 4, a light guide 23 can be inserted.
  • the measuring device 20 is used to adjust the connecting part 7 or the cutting device 6, whereupon the adhesive film 17 is pressed onto the skin surface 1, whereby the anesthetic arranged in the cushion 26 also comes into contact with the skin surface 1. 5, the penetration of the epidermis 3 and the opening of the vein 4 take place, so that the cannula part 5 can then be inserted into the opened vein 4 via the actuating element 16 according to FIG. 6.
  • the connecting line 14 can be detached and the attachment piece 8 with a closure cap 25 be closed. 9 and 10, a syringe cylinder 9 or an infusion tube 10 can then be connected to the extension pieces 8 in a manner known per se.
  • the connecting piece 18 When the connecting piece 18 is placed on the surface, the position and depth of the vessel to be punctured are simultaneously plumbed, the thickness of the tissue layers being measured either by means of ultrasound or using laser light. In the latter case, a (focused) "orientation beam” like the laser beam from the cutting laser is guided through the cannula part.
  • the sensors which collect the reflected rays are arranged or integrated next to the outlet opening (cutting device 6) and / or in the connecting piece 18 and / or in the connecting part 7. This is shown in detail in FIG. 13 in the sub-figures a) to d).
  • the laser power required for cutting is then set either manually or automatically based on previously determined tissue parameters.
  • the laser light is then guided through the light guide, creating a cut channel with a suitable diameter until the vessel to be reached is punctured.
  • the cannula part is then guided through the created vein access (incision channel) and inserted into the punctured vessel.
  • the light beam of the cutting laser can also be guided through the outside through, for example, two optical fibers, in which case the light beams emerging from the optical fibers are combined in one
  • the focal point should be combined so that the diameter of the focal point corresponds at least to the outer diameter of the cannula part to be inserted.
  • the (focused) "orientation beam” is guided inside through the elastic cannula part.
  • the sensors that collect the reflected rays are again arranged next to the outlet opening and / or integrated in the connecting piece or in the connecting part.
  • This first procedure is particularly suitable for very superficially located vessels, since there is a risk that the venous access created by adjacent tissue material, for. B. adipose tissue, before entering or
  • connection piece 18 is again placed simultaneously with the determination of the position and the depth of the tissue layers by means of ultrasound or laser light.
  • the laser power is then set, with the focused beam of the cutting laser being guided through a light-conducting element on the inside.
  • the focal point of the focused laser beam lies directly in front of the opening of the cannula part to be inserted.
  • the fiber optic element guiding the laser light is slidably received in the elastic cannula part and protrudes somewhat from the tip of the cannula part.
  • the fiber optic element is in direct tissue contact when the venous access is created.
  • the fiber optic element can be withdrawn separately from the cannula part.
  • the depth and position of the vessel is determined simultaneously with the attachment of the connecting part by means of ultrasound or laser light.
  • the fiber optic element and the cannula part are advanced in a unit for puncturing the vessel wall when puncturing the vessel.
  • the advancement can take place manually or by means of a control device (computer-controlled cannula guidance system).
  • the fiber optic element is withdrawn.
  • Fiber optic visualization device for example by magnetic resonance tomography (MRT) method or color-coded Doppler ultrasound method, can be followed directly and the process of introduction can thus be checked and, if necessary, corrected.
  • MRT magnetic resonance tomography
  • Doppler ultrasound method color-coded Doppler ultrasound method
  • the application modes described above are shown again in detail in FIG. 13, where the sensors or ultrasonic receivers are provided with the reference number 27.
  • the reference number 28 in FIG. 13 c) indicates the focal point onto which the light of the cutting laser 30 guided on the outside is focused.
  • the areas shown dark in FIG. 13 indicate the guided light of the orientation laser 29 or the cutting laser 30.
  • the light from the orientation laser 29 or the cutting laser 30 can be guided in the same or different elements.
  • FIG. 14 which essentially corresponds to FIG. 4, there is an additional adapter 31 for an external one
  • Ultrasound device or an orientation laser provided.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Molecular Biology (AREA)
  • Medical Informatics (AREA)
  • Otolaryngology (AREA)
  • Electromagnetism (AREA)
  • Optics & Photonics (AREA)
  • Biophysics (AREA)
  • Anesthesiology (AREA)
  • Pulmonology (AREA)
  • Hematology (AREA)
  • Dermatology (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Laser Surgery Devices (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Accommodation For Nursing Or Treatment Tables (AREA)

Abstract

L'invention concerne un procédé qui permet d'accéder à une veine, notamment dans le corps humain, selon lequel la surface dermique (1) qui entoure la zone d'accession à la veine est tout d'abord désinfectée. L'épiderme (3) est ensuite pénétré et la veine (4) est ouverte. Une canule (5) est alors insérée dans la veine (4). L'invention concerne par ailleurs un dispositif qui permet de mettre ledit procédé en oeuvre. La pénétration de l'épiderme (3) et/ou l'ouverture de la veine (4) s'effectuent à l'aide d'un dispositif coupant (6) travaillant au moyen d'un rayonnement électromagnétique.
EP95917900A 1994-05-11 1995-05-08 Procede permettant d'acceder a une veine et dispositif de mise en oeuvre dudit procede Ceased EP0708669A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4416656 1994-05-11
DE4416656A DE4416656C2 (de) 1994-05-11 1994-05-11 Vorrichtung zur Schaffung eines Venenzuganges
PCT/DE1995/000628 WO1995031242A1 (fr) 1994-05-11 1995-05-08 Procede permettant d'acceder a une veine et dispositif de mise en oeuvre dudit procede

Publications (1)

Publication Number Publication Date
EP0708669A1 true EP0708669A1 (fr) 1996-05-01

Family

ID=6517892

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95917900A Ceased EP0708669A1 (fr) 1994-05-11 1995-05-08 Procede permettant d'acceder a une veine et dispositif de mise en oeuvre dudit procede

Country Status (6)

Country Link
US (1) US6027492A (fr)
EP (1) EP0708669A1 (fr)
JP (1) JPH08511194A (fr)
CA (1) CA2166967A1 (fr)
DE (1) DE4416656C2 (fr)
WO (1) WO1995031242A1 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2252404A1 (fr) 1996-04-22 1997-10-30 Abbott Laboratories Dispositif de fermeture de contenant
US5891129A (en) * 1997-02-28 1999-04-06 Abbott Laboratories Container cap assembly having an enclosed penetrator
JP5274740B2 (ja) * 1999-09-08 2013-08-28 グレイゼル，ジョセフ ハンドルアセンブリ
DE19958688C1 (de) * 1999-12-06 2001-10-18 Jens Peter Heidrich Vorrichtung zum Einführen einer elastisch biegsamen Verweilkanüle
US8336152B2 (en) 2007-04-02 2012-12-25 C. R. Bard, Inc. Insert for a microbial scrubbing device
US9192449B2 (en) 2007-04-02 2015-11-24 C. R. Bard, Inc. Medical component scrubbing device with detachable cap
US8696820B2 (en) * 2008-03-31 2014-04-15 Bard Access Systems, Inc. Method of removing a biofilm from a surface
BRPI1013679A2 (pt) * 2009-04-01 2017-05-16 Bard Inc C R dispositivo de depuração para limpar uma porção de um dispositivo médico, e, método para limpar uma porção de um dispositivo médico
US9808579B2 (en) * 2013-05-08 2017-11-07 Elwha Llc Needleless injector systems, and related methods and components
US10413359B2 (en) * 2013-07-18 2019-09-17 International Business Machines Corporation Laser-assisted transdermal delivery of nanoparticulates and hydrogels
US20220022960A1 (en) * 2020-07-21 2022-01-27 Gyrus Acmi, Inc. D/B/A Olympus Surgical Technologies America Laser treatment using acoustic feedback

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3129931C2 (de) * 1981-07-29 1983-10-13 Institut für wissenschaftliche Photographie und Kinematographie Willi Fischer, 1000 Berlin Medizinischer Verband zur Fixierung einer Sonde
DE3140192C2 (de) * 1981-10-09 1985-05-02 Dr. Eduard Fresenius, Chemisch-pharmazeutische Industrie KG, 6380 Bad Homburg Katheter
EP0111060B1 (fr) * 1982-12-09 1987-08-19 International Business Machines Corporation Retrait de matière biologique par photodécomposition
EP0213139A1 (fr) * 1984-09-07 1987-03-11 Wagner, Wolfgang, Dr.med. Dispositif d'injection avec detecteur
US4913142A (en) * 1985-03-22 1990-04-03 Massachusetts Institute Of Technology Catheter for laser angiosurgery
US4929246A (en) * 1988-10-27 1990-05-29 C. R. Bard, Inc. Method for closing and sealing an artery after removing a catheter
JP3148216B2 (ja) * 1990-01-22 2001-03-19 株式会社エス・エル・ティ・ジャパン レーザ光照射による治療装置
ES2075676T3 (es) * 1990-12-10 1995-10-01 Howmedica Dispositivo y procedimiento para la aplicacion intersticial de energia laser.
US5275596A (en) * 1991-12-23 1994-01-04 Laser Centers Of America Laser energy delivery tip element with throughflow of vaporized materials
US5165418B1 (en) * 1992-03-02 1999-12-14 Nikola I Tankovich Blood sampling device and method using a laser
WO1994006510A1 (fr) * 1992-09-11 1994-03-31 Advanced Surgical, Inc. Catheter a perfusion a insertion autonome
US5522813A (en) * 1994-09-23 1996-06-04 Coherent, Inc. Method of treating veins

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9531242A1 *

Also Published As

Publication number Publication date
US6027492A (en) 2000-02-22
MX9505373A (es) 1998-03-31
WO1995031242A1 (fr) 1995-11-23
DE4416656C2 (de) 1997-03-13
CA2166967A1 (fr) 1995-11-23
DE4416656A1 (de) 1995-11-23
JPH08511194A (ja) 1996-11-26

Similar Documents

Publication Publication Date Title
DE1927868C3 (de) Vorrichtung zum genauen und schnellen Orten von Blutgefäßen oder dergleichen und zum treffsicheren Einführen einer Injektionskanüle in diese Gefäße
EP1933695B1 (fr) Element d'analyse et systeme d'analyse pour l'analyse d'un liquide corporel
DE69413188T2 (de) Nadelmechanismus für gastrointestinale Anwendung
DE69326952T2 (de) Ultraschallbilderzeugungssystem
DE10050648C2 (de) Chirurgisches Instrument
EP0780091B1 (fr) Aiguille médicale de pénétration des tissus corporels
DE69429077T2 (de) Einfache blutabnahme-vorrichtung
DE69330169T2 (de) Visuell gesteuerter trokar
DE3727190C2 (de) Führungsrohr zum subkutanen Einführen in den Körper eines Patienten
DE69220560T2 (de) Ultraschallströmungsmessgerät
DE112008003820T5 (de) Einkörper-Lanzette und Schmerzlos-Blutentnahme-Vorrichtung
DE2558081A1 (de) Optische fasern enthaltendes, fokussierbares nadel-endoskop
EP2063948B1 (fr) Cathéter
WO1995031242A1 (fr) Procede permettant d'acceder a une veine et dispositif de mise en oeuvre dudit procede
EP1244491B1 (fr) Dispositif pour introduire l'extremite distale d'une canule dans un vaisseau
DE19718081A1 (de) Einweg Blutlanzette
EP1878380A1 (fr) Appareil d'injection avec une deuxième fonction pour extraire un échantillon d'un liquide corporel
DE102008031907A1 (de) Vorrichtung für repetierendes sowie punktgenaues Einstechen flüssiger Stoffe in die Haut und Verfahren zum Einbringen der Stoffe, insbesondere in definierte Tiefen
DE202012007771U1 (de) Meßkammer für einen optisch arbeitenden Sensor zum Bestimmen einer Konzentration eines Stoffes
DE4446677C2 (de) Kanüle für die Gefäßpunktion
DE4240182A1 (de) Vorrichtung zum kontrollierten Abtragen von Material und insbesondere biologischem Gewebe
WO2018224210A1 (fr) Dispositif de positionnement destiné à positionner une fibre conductrice de lumière dans un orifice d'étalonnage
DE8616477U1 (de) Stichinstrument für die perkutane Nephroskopie
DE9201712U1 (de) Beleuchtungseinrichtung für die Diaphanoskopie und Durchlichtmikroskopie der Haut in vivo
DE19918483C1 (de) Interventionsvorrichtung mit Handhabe für medizinische Zwecke

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19960212

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE

17Q First examination report despatched

Effective date: 19980907

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

RTI1 Title (correction)

Free format text: DEVICE FOR PROVIDING ACCESS TO A VEIN

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED

18R Application refused

Effective date: 20010604