DE3302567A1 - Catheter - Google Patents

Catheter

Info

Publication number
DE3302567A1
DE3302567A1 DE19833302567 DE3302567A DE3302567A1 DE 3302567 A1 DE3302567 A1 DE 3302567A1 DE 19833302567 DE19833302567 DE 19833302567 DE 3302567 A DE3302567 A DE 3302567A DE 3302567 A1 DE3302567 A1 DE 3302567A1
Authority
DE
Germany
Prior art keywords
catheter
catheter according
metal
antimicrobial material
antimicrobial
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
DE19833302567
Other languages
German (de)
Inventor
Christoph Dr. 8011 Höhenkirchen Steidle
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE19833302567 priority Critical patent/DE3302567A1/en
Publication of DE3302567A1 publication Critical patent/DE3302567A1/en
Ceased legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M25/00Catheters; Hollow probes
    • A61M25/0043Catheters; Hollow probes characterised by structural features
    • A61M25/0045Catheters; Hollow probes characterised by structural features multi-layered, e.g. coated
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/07Endoradiosondes
    • A61B5/076Permanent implantations
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M25/00Catheters; Hollow probes
    • A61M25/0043Catheters; Hollow probes characterised by structural features
    • A61M2025/0056Catheters; Hollow probes characterised by structural features provided with an antibacterial agent, e.g. by coating, residing in the polymer matrix or releasing an agent out of a reservoir

Abstract

The invention provides a catheter (1) composed of a flexible plastic tube (2) of which, in order to reduce a risk of infection, at least surface zones (3, 4, 5, 6) are coated with a material with antimicrobial activity, preferably with a metal or a metal alloy. <IMAGE>

Description

Die Erfindung betxvif-ft einen Katheter aus einem biegtThe invention betxvif-ft bends a catheter out of one

samen Kunststoffrohr, der zum Einführen und längeren Verbleib in ein Blutgefäß oder eine Körperhöhle eines lebenden Organismus bestimmt; ist.seed plastic tube that is used for insertion and prolonged stay in a Designates a blood vessel or a body cavity of a living organism; is.

Katheter der herkömmlichen Fertigung werden vor allem in der Humanmedizin bei der Verabreichung von Infusionen und Transfusionen, zur Messung des herznahen, zentralen Venendrucks, zur Ableitung des Harns aus der Harnblase nach einer Punktion oder nach Einführen über den Harnleiter verwendet.Conventional manufacturing catheters are mainly used in human medicine when administering infusions and transfusions, for measuring the near-heart, central Venous pressure, used to drain urine from the urinary bladder used after a puncture or after insertion through the ureter.

Mit zunehmendem Ausbau der Intensivmedizin werden immer mehr Menschen vorübergehend künstlich mit Mineral- und Nährstofflösungen sowie Blutbestandteilen versorgt.With the increasing expansion of intensive care medicine, more and more people are temporarily artificially with mineral and nutrient solutions as well as blood components provided.

deren Bilanzierung über Messung der Harnaussoheidung mittels Blasenkatheter gemessen wird. Es handelt-sich hier um einen wesentlichen Aufgabenbereich der Intensivmedizin.their balancing by measuring the urine excretion using a urinary catheter is measured. This is an essential area of activity in intensive care medicine.

Bei den bisher verwendeten Kathetern der eingangs bezeichneten Art tritt als wesentliches Problem eine-Infektionsgefährdung durch eine künstliche Eröffnung von Blutgefäßen oder Körperhöhlen auf. Die biologische Barriere der Haut wird unterbrochen. So können Keime entlang des Stichkanais oder der Harnröhre zu einer örtlichen Entzündung führen. Bei weiterem Fortschreiten können sie in die Gefäße bzw. zum Blut oder in Körperhöhlen gelangen.In the case of the previously used catheters of the type mentioned at the beginning The main problem is a risk of infection through an artificial opening from blood vessels or body cavities. The skin's biological barrier is broken. Germs along the stab canal or the urethra can cause local inflammation to lead. With further progress they can enter the vessels or the blood or in Body cavities.

Eine schwere Allgemeininfektion oder Blutvergiftung kann die Folge sein. Weiterhin besteht bei den herkömmlichen Kathetern die Gefahr, daß sich an der Katheterpitze Keime ablagern und von hier zur weiteren Verbreitung führen. Iluch die Ablagerung von Fibrin und Blutplättchen kann die Keimbesiedelung fördern.A severe general infection or blood poisoning can result be. Furthermore, with the conventional catheters there is a risk that germs deposit on the tip of the catheter and from here lead to further spread. Iluch the deposition of fibrin and blood platelets can promote the colonization of germs.

Demgegenüber liegt der Erfindung die Aufgabe zugrunde, einen Katheter der eingangs genannten Art so weiterzubilden, daß das Infektionsrisiko auch bei einer über das bisher für höchstzulässig gehaltene Maß hinausgehenden Verweildauer stark reduziert wird.In contrast, the invention is based on the object of a catheter of the type mentioned so that the risk of infection also with a length of stay that goes beyond what was previously considered to be the maximum permissible amount is greatly reduced.

Zur Tötung dieser Aufgabe sieht die Erfindung vor, daß bestimmte Oberflächenbereiche des katheters aus einem antimikrobiell wirksamen Material bestehen, vorzugsweise aus einem Metall oder einer Metallegierung.To kill this problem, the invention provides that certain surface areas of the catheter consist of an antimicrobial material, preferably made of a metal or a metal alloy.

Erläuterung der erfindungsgemäßen Lösung Die zugrundeliegende Idee ist, die Flexibilität der .Kunststof'atheter mit den antimikrobiellen Zigenschaften von Metallen zu vereinen (wie sie z.B. vom Gebrauch von Metallkanülen her bekannt ist). Dabei können die nachteiligen Eigenschaften der vermehrten Keimbesiedelung von Kunststoffoberflächen überwunden werden, ohne die fehlende Elastizität von Metallrohren in Kauf nehmen zu müssen. Weitere Vorteile des erfindungsgemäßen Katheters sind die Dauerhaftigkeit der antimikrobiellen Wirkung im Gegensatz zu Kathetern mit implantierten Antibiotika; die Möglichkeit, das Eindringen von Keimen entlang des- 1-T.atheters durch die Haut bzw, die Wand der Gefäße öder Körperhöhlen zu verhindern und die Haftung von Blutbestandteilen wie Blutplättchen oder Fibrin bzw. von Salzen aus den Körperhöhlen an den inerten Oberflächen zu erschweren. Vorteilhafte Ausgestaltungen und Weiterbildungen des Erfindungsgegenstandes sind in den Unteransprüchen niedergelegt.Explanation of the solution according to the invention The underlying idea is the flexibility of plastic catheters with their antimicrobial properties of metals (as known e.g. from the use of metal cannulas is). The disadvantageous properties of the increased colonization of germs can thereby can be overcome by plastic surfaces without the lack of elasticity of metal pipes to have to accept. Further advantages of the catheter according to the invention are the durability of the antimicrobial effect in contrast to catheters with implanted Antibiotics; the possibility of the penetration of germs along the 1-T.atheter through the skin or, respectively, the wall of the blood vessels to prevent and the body cavities Adhesion of blood components such as platelets or fibrin or of salts to complicate the body cavities on the inert surfaces. Advantageous configurations and further developments of the subject matter of the invention are laid down in the subclaims.

-lie Erfindung wird im Folgenden anhand von Ausführungsbeispielen unter Bezugnahme auf die Zeichnung beschrieben.-lie invention is explained below on the basis of exemplary embodiments described with reference to the drawing.

In dieser zeigt Figur 1 eine perspektivische Ansicht eines erfindungsgemäßen Katheters (i) bestehend aus Kunststoffrohr (2) mit Aussenschicht (3) und Innen-Schicht (4) Figur 2 einen Schnitt längs der Linie TI-II durch den katheter aus Figur 1mit durchgehender Aussenschicht- (3) und Innenschicht (4) und Figur 5 einen der Figur 2 entsprechenden Schnitt durch eine andere Ausführungsform. bestehend aus Kunststoffrohr (2) und darin eingebette--ten Teilchen in der Aussenschicht (5) und der Innenschicht (6) in. verschiedenen Ausführungen.In this figure 1 shows a perspective view of an inventive Catheter (i) consisting of a plastic tube (2) with an outer layer (3) and an inner layer (4) FIG. 2 shows a section along the line TI-II through the catheter from FIG. 1 with continuous outer layer (3) and inner layer (4) and Figure 5 one of the figure 2 corresponding section through another embodiment. consisting of plastic tube (2) and embedded particles in the outer layer (5) and the inner layer (6) in different designs.

Der Katheter 1 gemäß den Figuren 1 und 2 bzw. 3 besteht aus einem biegsamen Rohr 2. Dieses Rohr 2 ist an der Katheterspitze und eventuell an anderen Stellen an der Aussenfläche 3 und / oder en der Innenfläche 4 mit einer dünnen antimikrobiell wirksamen Schicht z.B. einem Übernug aus einem Ketall oder einer Metallegierung verseken.The catheter 1 according to Figures 1 and 2 or 3 consists of one flexible tube 2. This tube 2 is on the catheter tip and possibly on others Place on the outer surface 3 and / or on the inner surface 4 with a thin antimicrobial effective layer e.g. an overlay made of a ketallic or a metal alloy sink.

In Figur 3 sind statt der aufliegenden Schicht 3 bzw. @ in die Vand des Kunststoffrohres 3 mtimikrobiell wieksame Partik@l entlang der äußeren 5 und/oder der inneran 6 @berfläche implantiert. Dabei kann die Verteilung der Teilchen, deren Größe und gegenseitiger Abstant voniieren.In Figure 3, instead of the overlying layer 3 or @ in the wall of the plastic tube 3 mimicrobially weighty Partik @ l along the outer 5 and / or implanted on the inner surface. The distribution of the particles, their Size and mutual distance.

Claims (9)

KATHETER Patentansprüche 1) Katheter aus einem biegsamen Kunststoffrohr, der zum Einführen und längeren Verbleib in ein Blutgefäß oder eine Körperhöhle eines lebenden Organismus bestimmt ist, dadurch gekennzeichnet, daß zumindest Oberflächenbereiche (3,4,5,6) des in den Organismus einzuführenden Teil (2) des Katheters (1) aus einem antimikrobiell wirksamen Material bestehen.CATHETER claims 1) catheter made from a flexible plastic tube, for insertion and prolonged retention in a blood vessel or a body cavity of a living organism is determined, characterized in that at least surface areas (3,4,5,6) of the part (2) of the catheter (1) to be introduced into the organism from one consist of antimicrobial material. 2) Katheter nach Anspruch 1, dadurch gekennzeichnet, daß das antimikrobiell wirksame Material ein Metall, eine Wtetallegierung oder eine organische Metallverbindung ist. 2) catheter according to claim 1, characterized in that the antimicrobial effective material is a metal, a Wtetal alloy or an organic metal compound is. 3) Katheter nach Anspruch 2, dadurch gekennzeichnet, daß die Metallegierung eine Edelstahllegierung ist.3) catheter according to claim 2, characterized in that the metal alloy is a stainless steel alloy. 4) Katheter nach Anspruch 2 dadurch gekennzeichnet, daß das Metall aus der Gruppe Zink, Kupfer, Silber ist.4) Catheter according to claim 2, characterized in that the metal from the group zinc, copper, silver. 5) Katheter nach einem oder mehreren der vorhergehenden Ansprüche dadurch gekennzeichnet, daß die innere Oberfläche (4) des Katheterrohres (2) aus antimikrobiell wirksamen Material besteht.5) Catheter according to one or more of the preceding claims characterized in that the inner surface (4) of the catheter tube (2) from antimicrobial material. 6) Katheter nach einem der vorhergehenden Ansprüche dadurch gekennzeichnet, daß die äußere Oberfläche (3) des Katheterrohres (2) aus antimikrobiell wirksamem Material besteht.6) catheter according to one of the preceding claims, characterized in that that the outer surface (3) of the catheter tube (2) made of antimicrobial Material. 7) Katheter nach einem der vorhergehenden Ansprüche dadurch gekennzeichnet, daß das antimikrobiell wirksame Material auf den Oberflächenbereich des Kunststoffrohres in Form einer diinnen Überzugschicht aufgebracht ist.7) catheter according to one of the preceding claims, characterized in that that the antimicrobial material on the surface area of the plastic pipe is applied in the form of a thin coating layer. 8) Katheter nach Anspruch7 dadurch gekennzeichnet. daß die Überzugsschicht eine geschlossene, glatte chilt (3, ) bildet.8) catheter according to claim 7, characterized. that the coating layer a closed, smooth chilt (3,) forms. 9) Katheter nach einem der Ansprüche 1 bis 6 dadurch gekennzeichnet, daß das antimikrobiell wirksame Material so in die Wand des Kunststoffrohres (2) eingebettet ist, daß es an dessen Oberfläche wirksam werden kann.9) catheter according to one of claims 1 to 6, characterized in that that the antimicrobial material is so in the wall of the plastic pipe (2) is embedded that it can be effective on its surface.
DE19833302567 1983-01-26 1983-01-26 Catheter Ceased DE3302567A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19833302567 DE3302567A1 (en) 1983-01-26 1983-01-26 Catheter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19833302567 DE3302567A1 (en) 1983-01-26 1983-01-26 Catheter

Publications (1)

Publication Number Publication Date
DE3302567A1 true DE3302567A1 (en) 1984-07-26

Family

ID=6189270

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19833302567 Ceased DE3302567A1 (en) 1983-01-26 1983-01-26 Catheter

Country Status (1)

Country Link
DE (1) DE3302567A1 (en)

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3444201A1 (en) * 1983-12-05 1985-09-05 Ash Medical Systems Inc., West Lafayette, Ind. PERMANENTLY USED TRANSCUTANE CONNECTING DEVICE OR ACCESS DEVICE FOR BLOOD VESSELS
DE3441586A1 (en) * 1984-11-14 1986-05-15 Jörg-Günter Dr.med. 3100 Celle Wiedeck Urethral catheter
EP0301717A1 (en) * 1987-07-09 1989-02-01 Karo Maeda Medical tubes for placement into the body of a patient
EP0484680A1 (en) * 1990-10-09 1992-05-13 The Furukawa Electric Co., Ltd. Method of producing catheter and catheter thus obtained
DE4041720A1 (en) * 1990-12-24 1992-06-25 Feldmann Michael In-dwelling vein-infusion needle - has part entering body of oligo:dynamic metal, discharging ions on contact with fluids preventing infection
DE9203077U1 (en) * 1992-03-05 1992-07-30 Fuhrmann, Gerhard, Dr.
EP0589577A1 (en) * 1992-09-24 1994-03-30 Smiths Industries Medical Systems Inc. Suction catheter assemblies
DE4316920A1 (en) * 1993-05-20 1994-11-24 Michael Dr Med Hartmann Endotracheal tube
DE4324994C1 (en) * 1993-07-26 1995-02-23 Demetron Gmbh Equipment and sanitary articles for hospitals
US5468562A (en) * 1991-03-01 1995-11-21 Spire Corporation Metallized polymeric implant with ion embedded coating
US5474797A (en) * 1991-10-18 1995-12-12 Spire Corporation Bactericidal coatings for implants
US5492763A (en) * 1992-06-08 1996-02-20 Spire Corporation Infection resistant medical devices and process
US5520664A (en) * 1991-03-01 1996-05-28 Spire Corporation Catheter having a long-lasting antimicrobial surface treatment
US5681575A (en) * 1992-05-19 1997-10-28 Westaim Technologies Inc. Anti-microbial coating for medical devices
DE29719818U1 (en) * 1997-11-07 1998-01-15 Huels Chemische Werke Ag Device for coating catheters
US5837275A (en) * 1992-05-19 1998-11-17 Westaim Technologies, Inc. Anti-microbial materials
DE19932463A1 (en) * 1999-07-12 2001-01-18 Bernd Tietze Stay-in-vein cannula for intravenous administration comprises a puncturing cannular and surrounding plastic capillary tube which are of the same length and have leading ends terminating in the same cross-sectional plane
US6716895B1 (en) 1999-12-15 2004-04-06 C.R. Bard, Inc. Polymer compositions containing colloids of silver salts
US7820284B2 (en) 2001-12-03 2010-10-26 C.R. Bard Inc. Microbe-resistant medical device, microbe-resistant polymeric coating and methods for producing same
US8034454B2 (en) 1999-12-15 2011-10-11 C.R. Bard, Inc. Antimicrobial compositions containing colloids of oligodynamic metals
WO2018141783A1 (en) 2017-01-31 2018-08-09 Schierholz Joerg Michael Catheter hub made of plastic that contains molecularly dispersed polychlorinated phenoxyphenol (pcpp)

Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3444201A1 (en) * 1983-12-05 1985-09-05 Ash Medical Systems Inc., West Lafayette, Ind. PERMANENTLY USED TRANSCUTANE CONNECTING DEVICE OR ACCESS DEVICE FOR BLOOD VESSELS
DE3441586A1 (en) * 1984-11-14 1986-05-15 Jörg-Günter Dr.med. 3100 Celle Wiedeck Urethral catheter
EP0301717A1 (en) * 1987-07-09 1989-02-01 Karo Maeda Medical tubes for placement into the body of a patient
US4923450A (en) * 1987-07-09 1990-05-08 Karo Maeda Medical tubes for placement into the body of a patient
EP0484680A1 (en) * 1990-10-09 1992-05-13 The Furukawa Electric Co., Ltd. Method of producing catheter and catheter thus obtained
DE4041720A1 (en) * 1990-12-24 1992-06-25 Feldmann Michael In-dwelling vein-infusion needle - has part entering body of oligo:dynamic metal, discharging ions on contact with fluids preventing infection
US5468562A (en) * 1991-03-01 1995-11-21 Spire Corporation Metallized polymeric implant with ion embedded coating
US5520664A (en) * 1991-03-01 1996-05-28 Spire Corporation Catheter having a long-lasting antimicrobial surface treatment
US5474797A (en) * 1991-10-18 1995-12-12 Spire Corporation Bactericidal coatings for implants
DE9203077U1 (en) * 1992-03-05 1992-07-30 Fuhrmann, Gerhard, Dr.
US5985308A (en) * 1992-05-19 1999-11-16 Westaim Technologies, Inc. Process for producing anti-microbial effect with complex silver ions
US6238686B1 (en) 1992-05-19 2001-05-29 Westaim Technologies Anti-microbial coating for medical devices
US5681575A (en) * 1992-05-19 1997-10-28 Westaim Technologies Inc. Anti-microbial coating for medical devices
US5753251A (en) * 1992-05-19 1998-05-19 Westaim Technologies, Inc. Anti-microbial coating for medical device
US5770255A (en) * 1992-05-19 1998-06-23 Westaim Technologies, Inc. Anti-microbial coating for medical devices
US5837275A (en) * 1992-05-19 1998-11-17 Westaim Technologies, Inc. Anti-microbial materials
US6017553A (en) * 1992-05-19 2000-01-25 Westaim Technologies, Inc. Anti-microbial materials
US5492763A (en) * 1992-06-08 1996-02-20 Spire Corporation Infection resistant medical devices and process
US5779687A (en) * 1992-09-24 1998-07-14 Smiths Industries Public Limited Company Method of removing undesirable fluid from respiration passages by suction catheter assemblies
EP0589577A1 (en) * 1992-09-24 1994-03-30 Smiths Industries Medical Systems Inc. Suction catheter assemblies
DE4316920A1 (en) * 1993-05-20 1994-11-24 Michael Dr Med Hartmann Endotracheal tube
US5725510A (en) * 1993-05-20 1998-03-10 Hartmann; Michael Endotracheal tube
DE4324994C1 (en) * 1993-07-26 1995-02-23 Demetron Gmbh Equipment and sanitary articles for hospitals
DE29719818U1 (en) * 1997-11-07 1998-01-15 Huels Chemische Werke Ag Device for coating catheters
DE19932463A1 (en) * 1999-07-12 2001-01-18 Bernd Tietze Stay-in-vein cannula for intravenous administration comprises a puncturing cannular and surrounding plastic capillary tube which are of the same length and have leading ends terminating in the same cross-sectional plane
US6716895B1 (en) 1999-12-15 2004-04-06 C.R. Bard, Inc. Polymer compositions containing colloids of silver salts
US8034454B2 (en) 1999-12-15 2011-10-11 C.R. Bard, Inc. Antimicrobial compositions containing colloids of oligodynamic metals
US7820284B2 (en) 2001-12-03 2010-10-26 C.R. Bard Inc. Microbe-resistant medical device, microbe-resistant polymeric coating and methods for producing same
WO2018141783A1 (en) 2017-01-31 2018-08-09 Schierholz Joerg Michael Catheter hub made of plastic that contains molecularly dispersed polychlorinated phenoxyphenol (pcpp)

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