DE3240838A1 - Aggregation-preventing indwelling cannulas or catheters - Google Patents

Aggregation-preventing indwelling cannulas or catheters

Info

Publication number
DE3240838A1
DE3240838A1 DE19823240838 DE3240838A DE3240838A1 DE 3240838 A1 DE3240838 A1 DE 3240838A1 DE 19823240838 DE19823240838 DE 19823240838 DE 3240838 A DE3240838 A DE 3240838A DE 3240838 A1 DE3240838 A1 DE 3240838A1
Authority
DE
Germany
Prior art keywords
catheters
cannulas
aggregation
cannula
indwelling cannulas
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Withdrawn
Application number
DE19823240838
Other languages
German (de)
Inventor
Erfinder Wird Nachtraeglich Benannt Der
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.)
Hilsenitz Eric Drmed 2390 Flensburg De
Original Assignee
Hilsenitz eric drmed
HILSENITZ ERIC DR MED
Hilsenitz Eric DrMed 3502 Vellmar
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 Hilsenitz eric drmed, HILSENITZ ERIC DR MED, Hilsenitz Eric DrMed 3502 Vellmar filed Critical Hilsenitz eric drmed
Priority to DE19823240838 priority Critical patent/DE3240838A1/en
Publication of DE3240838A1 publication Critical patent/DE3240838A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/18—Applying electric currents by contact electrodes
    • A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
    • A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
    • A61N1/372—Arrangements in connection with the implantation of stimulators
    • 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
    • A61M25/0009—Making of catheters or other medical or surgical tubes
    • A61M25/0012—Making of catheters or other medical or surgical tubes with embedded structures, e.g. coils, braids, meshes, strands or radiopaque coils
    • 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
    • A61M25/0043—Catheters; Hollow probes characterised by structural features
    • A61M25/005—Catheters; Hollow probes characterised by structural features with embedded materials for reinforcement, e.g. wires, coils, braids

Abstract

Indwelling cannulas or catheters for administration of medicines, solutions, hormones or the like into the human body tend to cause platelet aggregation, fibrin deposits and thrombi which necessitate removal of the cannulas. This is to be avoided by the fact that a low-frequency alternating electrical potential is set up in and around the cannula.

Description

Verweilkanülen oder -katheterIndwelling cannulas or catheters

Die Erfindung betrifft Verweilkanülen oder -katheter, die der Applikation diverser Flüssigkeiten dienen.The invention relates to indwelling cannulas or catheters for application serve various liquids.

In gewissen Fällen ist es vor der Applikation einer Flüssigkeit notwendig, durch die gleiche Kanüle Blutparametermessungen vorzunehmen.In certain cases, before applying a liquid, it is necessary to take blood parameter measurements through the same cannula.

Es ist bekannt, daß Kanülen oder Katheter aus verschiedenen Metallen oder Kunststoffen dazu neigen, Thrombozytenaggregationen, Fibrinablagerungen und Thromben zu erzeugen, die zum Entfernen der Kanülen oder Katheter zwingen.It is known that cannulas or catheters are made of various metals or plastics tend to have platelet aggregations, and fibrin deposits Generate thrombi that force the cannulas or catheters to be removed.

Im menschlichen Blut, Geweben und Körperflüssigkeiten befinden sich diverse elektrisch geladene Ionen, Moleküle und Makromoleküle. Diese sollen von der Anlagerung an die Kanülenwände durch den Aufbau eines elektrischen Potentials abgehalten werden. Da positive und negative Ladungsträger vorhanden sind, muß das elektrische Potential wechseln, damit alle Teilchen abwechselnd abgestoßen werden.There are in human blood, tissues and body fluids various electrically charged ions, molecules and macromolecules. These should be from the accumulation on the cannula walls through the build-up of an electrical potential be held. Since there are positive and negative charge carriers, it must Change electrical potential so that all particles are repelled alternately.

Die mit der Erfindung zu erzielenden Vorteile bestehen darin, daß die entsprechend ausgestatteten Kanülen eine wesentlich längere Verweildauer bei wesentlich geringeren körperlichen Komplikationen, wie Entzündungen, Thrombosen u. ä. gestatten gegenüber bisher bekannten Ausführungen.The advantages to be achieved with the invention are that the appropriately equipped cannulas have a significantly longer residence time significantly fewer physical complications such as inflammation and thrombosis and the like allow compared to previously known designs.

Als Beispiele seien genannt: alle Arten von Insulinpumpen mit und ohne Sensoren für Blutparameter, Dialysepatienten und alle Arten von Verweilinfusionssystemen.Examples are: all types of insulin pumps with and without sensors for blood parameters, dialysis patients and all types of indwelling infusion systems.

Das Funktionsprinzip ist in anliegenden Zeichnungen dargestellt.The functional principle is shown in the attached drawings.

Fig. 1 zeigt eine Kanüle mit innen und außen parallel zur Längsachse liegenden Elektroden, die mit dem Blut in Berührung kommen.Fig. 1 shows a cannula with the inside and outside parallel to the longitudinal axis lying electrodes that come into contact with the blood.

Fig. 2 zeigt eine Ausführung mit eingearbeiteten drahtförmigen Leitern, die abwechselnd innen und außen liegen Fig. 3 zeigen parallel zur Längsachse der Kanüle angeordnete und 4 i Elektroden, die nicht mit dem Blut in Berührung kommen und nur elektrostatisch wirken.Fig. 2 shows an embodiment with incorporated wire-shaped conductors, which are alternately inside and outside Fig. 3 show parallel to the longitudinal axis of the Cannula arranged and 4 electrodes that do not come into contact with the blood and only act electrostatically.

Fig. 5 zeigt Elektroden in Form einer zweigängigen Schraube innerhalb der Kanülenwand, ebenfalls elektrostatisch wirkend.Fig. 5 shows electrodes in the form of a two-start screw inside the cannula wall, also acting electrostatically.

LeerseiteBlank page

Claims (1)

Patentansprüche: Aggregationsverhindernde Verweilkanüle oder -katheter zur Applikation von Heilmitteln, Lösungen, Hormonen u. ä. in den menschlichen Körper, dadurch gekennzeichnet, daß in oder um die Kunststoffkanüle elektrisch leitfähige Fäden oder Schichten aus Metall oder anderen Leitern vorhanden sind, die mit einer Wechselspannung niederer Frequenz beaufschlagt werden.Claims: Indwelling cannula or catheter to prevent aggregation for the application of remedies, solutions, hormones, etc. into the human body, characterized in that electrically conductive in or around the plastic cannula There are threads or layers of metal or other conductors connected to a AC voltage of low frequency can be applied.
DE19823240838 1982-11-05 1982-11-05 Aggregation-preventing indwelling cannulas or catheters Withdrawn DE3240838A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19823240838 DE3240838A1 (en) 1982-11-05 1982-11-05 Aggregation-preventing indwelling cannulas or catheters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19823240838 DE3240838A1 (en) 1982-11-05 1982-11-05 Aggregation-preventing indwelling cannulas or catheters

Publications (1)

Publication Number Publication Date
DE3240838A1 true DE3240838A1 (en) 1984-05-10

Family

ID=6177339

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19823240838 Withdrawn DE3240838A1 (en) 1982-11-05 1982-11-05 Aggregation-preventing indwelling cannulas or catheters

Country Status (1)

Country Link
DE (1) DE3240838A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0346058A1 (en) * 1988-06-07 1989-12-13 Btg International Limited Medical devices
WO1996039225A1 (en) * 1995-06-06 1996-12-12 The Board Of Regents, The University Of Texas System Electrode system in iontophoretic treatment devices
GB2339698A (en) * 1998-07-21 2000-02-09 Alexander Robert Ead Blacklock Urethral catheter
JP2015507481A (en) * 2011-06-20 2015-03-12 エスアールアイ インターナショナルＳＲＩ Ｉｎｔｅｒｎａｔｉｏｎａｌ Electrochemical sterilization of implantable catheters

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3480003A (en) * 1967-02-03 1969-11-25 Battelle Development Corp Apparatus for measuring esophageal motility
US3533403A (en) * 1967-05-10 1970-10-13 Riley D Woodson Combination heart catheter and electrode
DE7017846U (en) * 1970-05-13 1970-11-05 Hellige & Co Gmbh F LIGHT GUIDE CATHETER.
US3606881A (en) * 1970-02-20 1971-09-21 Riley D Woodson Conductive rubber electrode
US3680544A (en) * 1970-09-09 1972-08-01 James P Shinnick Transthoracic cannula-type device for cardiopulmonary resuscitation
DE2140994B2 (en) * 1971-08-16 1977-06-30 Siemens AG, 1000 Berlin und 8000 München PROBE FOR INSERTING INTO BODY CAVES
US4073287A (en) * 1976-04-05 1978-02-14 American Medical Systems, Inc. Urethral profilometry catheter
DE2834956A1 (en) * 1978-08-10 1980-02-21 Thomas Dr Med Urban Double bulb catheter with blood vessel by-pass - for draining blood or administering drugs, comprises two bulbs, tube, and control bulb
DE2910749A1 (en) * 1979-03-19 1980-09-25 Fresenius Chem Pharm Ind CATHETER WITH X-RAY CONTRAST STRIP
DE8229899U1 (en) * 1982-10-25 1983-01-27 März, Peter, Dr. ELECTRICALLY CONDUCTIVE CONNECTOR FOR DEVICES FOR CONTROLLING THE POSITION OF CENTRAL VENETON CATHETERS

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3480003A (en) * 1967-02-03 1969-11-25 Battelle Development Corp Apparatus for measuring esophageal motility
US3533403A (en) * 1967-05-10 1970-10-13 Riley D Woodson Combination heart catheter and electrode
US3606881A (en) * 1970-02-20 1971-09-21 Riley D Woodson Conductive rubber electrode
DE7017846U (en) * 1970-05-13 1970-11-05 Hellige & Co Gmbh F LIGHT GUIDE CATHETER.
US3680544A (en) * 1970-09-09 1972-08-01 James P Shinnick Transthoracic cannula-type device for cardiopulmonary resuscitation
DE2140994B2 (en) * 1971-08-16 1977-06-30 Siemens AG, 1000 Berlin und 8000 München PROBE FOR INSERTING INTO BODY CAVES
US4073287A (en) * 1976-04-05 1978-02-14 American Medical Systems, Inc. Urethral profilometry catheter
DE2834956A1 (en) * 1978-08-10 1980-02-21 Thomas Dr Med Urban Double bulb catheter with blood vessel by-pass - for draining blood or administering drugs, comprises two bulbs, tube, and control bulb
DE2910749A1 (en) * 1979-03-19 1980-09-25 Fresenius Chem Pharm Ind CATHETER WITH X-RAY CONTRAST STRIP
DE8229899U1 (en) * 1982-10-25 1983-01-27 März, Peter, Dr. ELECTRICALLY CONDUCTIVE CONNECTOR FOR DEVICES FOR CONTROLLING THE POSITION OF CENTRAL VENETON CATHETERS

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
GERTHSEN u. KNESER: Physik, Springer-Verlag Berlin, 1969, S.206 *
US-Z: Medical and Biological Engineering a. Computing, Jan. 1983, S.1-8 *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0346058A1 (en) * 1988-06-07 1989-12-13 Btg International Limited Medical devices
US5154165A (en) * 1988-06-07 1992-10-13 National Research Development Corporation Medical devices
WO1996039225A1 (en) * 1995-06-06 1996-12-12 The Board Of Regents, The University Of Texas System Electrode system in iontophoretic treatment devices
US6119037A (en) * 1995-06-06 2000-09-12 Board Of Regents, The University Of Texas System Electrode system in iontophoretic treatment devices
US6366807B1 (en) 1995-06-06 2002-04-02 Board Of Regents, The University Of Texas System Electrode system in iontophoretic treatment devices
GB2339698A (en) * 1998-07-21 2000-02-09 Alexander Robert Ead Blacklock Urethral catheter
JP2015507481A (en) * 2011-06-20 2015-03-12 エスアールアイ インターナショナルＳＲＩ Ｉｎｔｅｒｎａｔｉｏｎａｌ Electrochemical sterilization of implantable catheters

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Legal Events

Date Code Title Description
OM8 Search report available as to paragraph 43 lit. 1 sentence 1 patent law
OP8 Request for examination as to paragraph 44 patent law
8127 New person/name/address of the applicant

Owner name: HILSENITZ, ERIC, DR.MED., 2390 FLENSBURG, DE

8139 Disposal/non-payment of the annual fee