WO2006116955A1 - Connection device for a catheter, in particular for a central venous catheter - Google Patents

Connection device for a catheter, in particular for a central venous catheter Download PDF

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Publication number
WO2006116955A1
WO2006116955A1 PCT/DE2005/000839 DE2005000839W WO2006116955A1 WO 2006116955 A1 WO2006116955 A1 WO 2006116955A1 DE 2005000839 W DE2005000839 W DE 2005000839W WO 2006116955 A1 WO2006116955 A1 WO 2006116955A1
Authority
WO
WIPO (PCT)
Prior art keywords
infusion
catheter
connecting device
characterized
silver
Prior art date
Application number
PCT/DE2005/000839
Other languages
German (de)
French (fr)
Inventor
André Reichardt
Original Assignee
Reichardt Andre
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 Reichardt Andre filed Critical Reichardt Andre
Priority to PCT/DE2005/000839 priority Critical patent/WO2006116955A1/en
Publication of WO2006116955A1 publication Critical patent/WO2006116955A1/en

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
    • A61M39/00Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/10Tube connectors; Tube couplings
    • A61M39/16Tube connectors; Tube couplings having provision for disinfection or sterilisation
    • A61M39/162Tube connectors; Tube couplings having provision for disinfection or sterilisation with antiseptic agent incorporated within the connector
    • 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
    • A61M39/00Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/10Tube connectors; Tube couplings
    • A61M2039/1033Swivel nut connectors, e.g. threaded connectors, bayonet-connectors
    • 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
    • A61M2205/00General characteristics of the apparatus
    • A61M2205/75General characteristics of the apparatus with filters
    • A61M2205/7518General characteristics of the apparatus with filters bacterial

Abstract

A connection device (1), in particular for a central venous catheter, is proposed for attachment of infusion tubes (4) or the like and comprises a bacterial filter (11) and/or an infusion outlet (7) made of silver. The bacterial filter (11) and infusion outlet (7) can significantly reduce the risk of sepsis and can be easily replaced together with the connection device (1).

Description

Connecting device for a catheter, in particular for a central venous catheter

The invention relates to a connecting device for a catheter, in particular for a central venous catheter, with an inlet connection piece, an outlet connection piece, an intermediate piece arranged between inlet fitting and outlet fitting and an infusion channel, wherein at least one permitting the flow of infusion liquid and simultaneously the bacterial and / or fungal infestation the catheter inhibiting protective element is provided.

A connecting device of the aforementioned type is known from DE 101 46 853 A1. There, an indwelling catheter assembly is disclosed having a flexible catheter through which a guide member extends as the catheter is laid. In the flow direction in front of the catheter, a connecting device is arranged, at the inlet connection piece an infusion tube and to the outlet connection piece a holder for catheter and guide element can be connected. In the connecting device, a bacteria filter is provided, which completely fills the connecting device and does not seem to be interchangeable.

A connecting device for the changing connection, z. B. of infusion tubes to a catheter without bacterial filter is known from DE 300 090 3 C1. Especially in central venous catheters, which remain over long periods of time over an artificial open wound in the body, z. As for artificial nutrition in short bowel syndrome, the risk of usually caused by the ingress of bacteria Sepsen is quite large, since absolutely sterile conditions can hardly be created. In addition, incorrect handling can not be ruled out that lead to bacterial attack. Such septa are associated with considerably personal disadvantages for the treated person. In addition, each Sepsis brings significant additional costs.

After completion of an infusion, the end of the catheter, or if a connector is present, the distal end of the connector is cleaned, the catheter filled with solution and sealed at the end or at the distal end of the connector with a stopper. Despite precautionary measures such as rinsing, gloves for the operating personnel, etc., bacteria and / or fungi may settle in the end region of the catheter or the connecting piece. These are often not completely removed despite rinsing. In the period between two infusions such bacteria or fungi can proliferate in the tail or in the connector. From there they are flushed into the patient's body with the next infusion and can cause sepsis.

The invention has for its object to prevent the penetration of bacteria and / or fungi into the catheter in an alternative manner, or at least reduce significantly.

According to the invention, this object is achieved in a connecting device of the type mentioned above in that the protective element is a sieve element made of silver, seen in the infusion channel or in the direction of infusion flow, arranged at the end of the infusion channel and having numerous openings.

The protective element is a barrier for bacteria and / or fungi. The arrangement of this protective element in the connecting device is particularly advantageous because the complete connecting device can be exchanged with the protective element in a very simple manner, if the Protective element z. B. as a result of constipation, should be ineffective. Such protective elements, as seen in the infusion flow direction behind the connection device, ie in the catheter itself, have the disadvantage that the entire catheter would have to be replaced. A protective element in the direction of infusion flow, viewed in front of the connection device, would not bring any advantages in terms of the risks involved in changing the infusion tubes. It can be assumed that the connecting piece has to be exchanged considerably less frequently than the infusion tubes, so that a corresponding reduction of the sepsis risk can be achieved in comparison with the prior art.

It has long been known that silver has a germ-inhibiting effect. The sieve element made of silver thus represents an effective obstacle to germs, which - especially when changing the infusion tube - have entered the connection device. The sieve can also be cleaned, disinfected and reused.

Furthermore, the connecting device according to the invention can be designed such that the sieve element has a substantially frustoconical lateral surface and the openings pass through the lateral surface.

In this way, a relatively large surface of the sieve element is achieved, which is correspondingly advantageous for the desired germ inhibiting effect.

Furthermore, the connecting device according to the invention can be designed such that, in addition to and in the infusion flow direction, a bacterial filter is arranged in front of the sieve element in the intermediate piece.

It may also be advantageous applications in which to work without bacteria filter and only with the sieve of silver.

Finally, the connecting device according to the invention can be designed such that the infusion channel has silver at least partially on the surface. This can z. B. be achieved by a coating or by the infusion channel or the entire connecting device made of silver.

In the following, a possible embodiment of the connecting device according to the invention is illustrated with reference to a figure.

The single FIGURE shows a connecting device 1 with an inlet connection piece 2 with a thread 3, via which an infusion tube 4 can be connected by means of a hose connection piece 5. Alternatively to the infusion tube 4, a multi-way element can be connected, in turn, several feeds, z. B. for the infusion fluid and for drugs, can be connected. A connected infusion tube 4 terminates at a transition point not shown here in an infusion channel 6 of the connecting device 1. The infusion channel 6 passes through an intermediate piece 13 and ends in a sieve-like infusion outlet 7 made of silver, which has numerous openings 8 on its frustoconical lateral surface through which the in the infusion channel 6 located infusion fluid can escape. The infusion outlet 7 protrudes beyond the outlet fitting 9, which also has a thread 10 for connection to a catheter, not shown here.

In the infusion channel 6, a bacterial filter 11 is arranged. Due to this expansion, a larger surface of the bacterial filter 11 can be effective and thus represents a lesser obstacle to the flow of the infusion liquid. Between bacteria filter 11 and outlet connection piece 9, an air outlet valve 12 is provided, can escape through the possibly occurring gaseous inclusions. LIST OF REFERENCE NUMBERS

1 connection device

2 inlet fitting

3 threads

4 infusion tube

5 hose connector

6 sieve element

7 infusion outlet

8 opening

9 outlet fitting

10 threads

11 bacterial filters

12 air outlet valve

13 intermediate piece

Claims

1. Connecting device for a catheter, in particular for a central venous catheter, with an inlet connection piece (2), an outlet connection piece (9), between inlet connection piece (2) and
Outlet fitting (9) arranged intermediate piece (13) and an infusion channel (6), wherein at least one permitting the flow of infusion fluid and at the same time the bacteria and / or fungal infestation of the catheter inhibiting protective element is provided, characterized in that the protective element in the infusion channel (6) or seen in the direction of infusion flow at the end of the infusion channel (6) arranged, numerous openings (8) exhibiting Siebelement (7) is made of silver.
2. Connecting device according to claim 1, characterized in that the sieve element (7) has a substantially frusto-conical lateral surface and the openings (8) pass through the lateral surface.
3. Connecting device according to claim 1 or 2, characterized in that in addition to and seen in the infusion flow direction in front of the sieve element (7) in the intermediate piece (13) a bacterial filter (11) is arranged.
4. Connecting device according to one of claims 1 to 3, characterized in that the infusion channel (6) at least partially at the
Surface silver has.
PCT/DE2005/000839 2005-05-03 2005-05-03 Connection device for a catheter, in particular for a central venous catheter WO2006116955A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/DE2005/000839 WO2006116955A1 (en) 2005-05-03 2005-05-03 Connection device for a catheter, in particular for a central venous catheter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/DE2005/000839 WO2006116955A1 (en) 2005-05-03 2005-05-03 Connection device for a catheter, in particular for a central venous catheter

Publications (1)

Publication Number Publication Date
WO2006116955A1 true WO2006116955A1 (en) 2006-11-09

Family

ID=35207359

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2005/000839 WO2006116955A1 (en) 2005-05-03 2005-05-03 Connection device for a catheter, in particular for a central venous catheter

Country Status (1)

Country Link
WO (1) WO2006116955A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015169282A1 (en) * 2014-05-08 2015-11-12 Sicos Gmbh Connecting device for a catheter, in particular a peripheral vein catheter

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4309992A (en) * 1980-07-11 1982-01-12 Dodak Michael J Microbicidal filter
EP0441171A2 (en) * 1990-02-08 1991-08-14 WEX, Roland Medical device with germ barrier
US5049139A (en) * 1987-08-29 1991-09-17 Giltech Limited Apparatus for antimicrobial use
DE9320337U1 (en) * 1993-09-04 1994-04-28 Vygon Gmbh & Co Kg Catheter tube with a shoulder
US5782808A (en) * 1994-02-14 1998-07-21 Fresenius Usa, Inc. Antibacterial medical tubing connector
DE10146853A1 (en) * 2001-09-24 2003-04-17 Sueddeutsche Feinmechanik Verweilkatheteranordnung
EP1579887A1 (en) * 2004-03-24 2005-09-28 André Reichardt Connector for a catheter, especially a central venous catheter

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4309992A (en) * 1980-07-11 1982-01-12 Dodak Michael J Microbicidal filter
US5049139A (en) * 1987-08-29 1991-09-17 Giltech Limited Apparatus for antimicrobial use
EP0441171A2 (en) * 1990-02-08 1991-08-14 WEX, Roland Medical device with germ barrier
DE9320337U1 (en) * 1993-09-04 1994-04-28 Vygon Gmbh & Co Kg Catheter tube with a shoulder
US5782808A (en) * 1994-02-14 1998-07-21 Fresenius Usa, Inc. Antibacterial medical tubing connector
DE10146853A1 (en) * 2001-09-24 2003-04-17 Sueddeutsche Feinmechanik Verweilkatheteranordnung
EP1579887A1 (en) * 2004-03-24 2005-09-28 André Reichardt Connector for a catheter, especially a central venous catheter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015169282A1 (en) * 2014-05-08 2015-11-12 Sicos Gmbh Connecting device for a catheter, in particular a peripheral vein catheter

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