MEDICAL DEVICE WITH A FLUID PORT

• US 20080173308A1
• Filed: 10/26/2007
• Published: 07/24/2008
• Est. Priority Date: 01/24/2007
• Status: Active Grant

• Current Assignee: Dragerwerk AG & Company KGaA (FPS Vermögensverwaltung GmbH)
• Original Assignee: Drager Medical AG & Co KG (Dragerwerk AG)
• Inventors: Wotha, Gerd, Steeger, Markus, Tappehorn, Ludger, Schermeier, Olaf
• Granted Patent: US 9,089,664 B2
• Time in Patent Office: Days
• US Class Current: 128/205.23
• CPC Class Codes: A61M 16/08 Bellows; Connecting tubes having means for taking samples G01N1/22; Water traps; Patient circuits
• CPC Class Codes: A61M 16/0816 Joints or connectors
• CPC Class Codes: A61M 2205/14 Detection of the presence or absence of a tube, a connector or a container in an apparatus
• CPC Class Codes: A61M 2205/3569 sublocal, e.g. between console and disposable
• CPC Class Codes: A61M 2205/3592 using telemetric means, e.g. radio or optical transmission
• CPC Class Codes: A61M 2205/6054 Magnetic identification systems
• CPC Class Codes: A61M 39/1055 Rotating or swivel joints in general F16L27/00
• CPC Class Codes: G06K 7/10178 including auxiliary means for focusing, repeating or boosting the electromagnetic interrogation field comparable booster antennas integrated on the record carrier itself G06K19/07794

Abstract

A medical device is provided with a fluid port (2), a tube (20), a socket (4), which can be connected to the fluid port (2), on the one hand, and to the tube (20), on the other hand, with freely selectable rotation positions, in order to establish a fluid connection between the fluid port (2) and the tube (20). The tube (20) is provided with a transponder (22) at its end at which it is connected to the socket (4), and with a writing and reading device for communication with the transponder (22), which has an antenna (24) in the area of the fluid port (2). The socket (4) is provided, in the area of its two connection ends, with a coil (5, 6) each, whose axis of rotation is directed essentially coaxially to the axis of rotation about which the relative rotation position of the socket (4) is variable. The two coils (5, 6) are connected by electric lines (8), to which at least one capacitor (9) is connected as a circuit component. The coils (5, 6), the electric lines (8) and the circuit component(s) (9) form an electric oscillatory circuit for transmitting signals from the writing and reading device to the transponder (22) and vice versa.

Claims

1. A medical device comprising:

a fluid port;

a tube;

a socket having a first connection end for connection to said fluid port with freely selectable rotation positions about a first end axis and having a second connection end for connection to said tube with freely selectable rotation positions about a second end axis to establish a fluid connection between said fluid port and said tube;

a transponder provided at an end of said tube at which said tube is connected to said socket;

a writing and reading device for communication with said transponder, said writing and reading device having an antenna in an area of said fluid port;

a first coil associated with said socket in an area of said first connection end and essentially coaxial to said first end axis;

a second coil associated with said socket in an area of said second connection end and essentially coaxial to said second end axis;

an electric line connecting said first coil and said second coil;

a capacitor connected to said electric line as a circuit component, wherein said first coil, said second coil, said electric line and said circuit component form an electric oscillatory circuit for transmitting signals from the writing and reading device to said transponder and vice versa.

2. A medical device in accordance with claim 1, wherein:

windings of said first coil extend around a flow channel of said socket in an area of a first connection opening of said first connection end; and

windings of said second coil extend around the flow channel of said socket in an area of a second connection opening of said second connection end.

3. A medical device in accordance with claim 2, wherein:

windings of said first coil are embedded in a wall portion of said socket adjacent to said first connection opening; and

windings of said second coil are embedded in a wall portion of said socket adjacent to said second connection opening.

4. A medical device in accordance with claim 3, wherein said electric line and said circuit component of said oscillatory circuit are embedded in the wall of said socket.

5. A medical device in accordance with claim 1, further comprising:

a first annular surface arranged at said socket first connection end, said first annular surface extending concentrically around an outer wall of said socket;

a second annular surface arranged at said socket second connection end, said second annular surface extending concentrically around the outer wall of said socket; and

a flexible printed circuit board, said coils, said electric line and said circuit component of the oscillatory circuit being arranged on said flexible printed circuit board, said flexible printed circuit board being bonded to said annular surfaces and to a web, whereby each of said coils lies on one of the respective annular surfaces.

6. A medical device in accordance with claim 5, wherein said annular surfaces and said web are injection-molded from a plastic in one piece with said socket.

7. A medical device in accordance with claim 1, further comprising a core of a ferromagnetic material, said core being disposed in an interior space of at least one of said coils to bring about a focusing of a coil field.

8. A medical device comprising:

a device fluid port;

a tube for carrying fluid to or from the device fluid port;

a socket connector with a wall structure defining a first connection end for connection to said device fluid port at a freely selectable rotation position about a port axis and defining a second connection end for connection to said tube at a freely selectable rotation position about a tube axis, said socket establishing a fluid connection between said fluid port and said tube;

a transponder provided at a socket end of said tube;

a writing and reading device for communication with said transponder, said writing and reading device having an antenna in an area of said device fluid port;

a first coil supported by said socket in an area of said first connection end and essentially coaxial to said port axis with said socket connector connected to said device fluid port;

a second coil supported by said socket in an area of said second connection end and essentially coaxial to said tube axis with said socket connector connected to said tube;

an electric line connecting said first coil and said second coil;

a capacitor connected to said electric line as a circuit component, wherein said first coil, said second coil, said electric line and said circuit component form an electric oscillatory circuit for transmitting signals from the writing and reading device to said transponder and vice versa.

9. A medical device in accordance with claim 8, wherein:

windings of said first coil extend around a flow channel of said socket in the area of a first connection opening of said first connection end; and

windings of said second coil extend around the flow channel of said socket in the area of a second connection opening of said second connection end.

10. A medical device in accordance with claim 9 wherein:

windings of said first coil are embedded in a wall of said socket adjacent to said second connection opening; and

windings of said second coil are embedded in said wall of said socket adjacent to said first connection opening.

11. A medical device in accordance with claim 8, wherein said electric line and said circuit component of said oscillatory circuit are embedded in a wall of said socket.

12. A medical device in accordance with claim 8, further comprising:

a first annular surface arranged at said first connection end of said socket said first annular surface extending concentrically around an outer wall of said socket;

a second annular surface arranged at said second connection end of said socket said second annular surface extending concentrically around the outer wall of said socket; and

a flexible printed circuit board, said coils, said electric line and said circuit component of the oscillatory circuit being arranged on said flexible printed circuit board, said flexible printed circuit board being bonded to said annular surfaces and to a web, whereby each of said coils lies on one of the respective annular surfaces.

13. A medical device in accordance with claim 12, wherein said annular surfaces and said web are injection-molded from a plastic in one piece with said socket.

14. A medical device in accordance with claim 8, further comprising a core of a ferromagnetic material, said core being disposed in an interior space of at least one of said coils to bring about a focusing of a coil field.