Port catheter

Abstract

A port catheter includes a port housing and a port chamber formed in the port housing and closed by a septum. The port catheter also includes a first catheter connection communicating with the port chamber for the connection of a first catheter, a second catheter connection for connecting a second catheter connected to an infusion pump and supplying a fluid to the port catheter from the infusion pump, and a third catheter connection communicating with the second catheter connection for connecting a third catheter which discharges the fluid supplied by the infusion pump.

Claims

1. A port catheter comprising a port housing, a port chamber formed in the port housing and closed by a septum, the port chamber configured to receive a first fluid through the septum, a first catheter connection communicating with the port chamber for the connection of a first catheter, which discharges the first fluid from the port chamber, a second catheter connection for connecting a second catheter connected to an infusion pump and supplying a second fluid to the port catheter from the infusion pump, and a third catheter connection communicating with the second catheter connection for connecting a third catheter which discharges the second fluid supplied by the infusion pump, the port catheter being configured to prevent the first and second fluids from coming in contact with one another.

2. The port catheter according to claim 1, further comprising a first side and a second side and wherein the septum is located on the first side of the port catheter and wherein the first catheter connection and the third catheter connection are arranged on the second side of the port catheter opposite the septum.

3. The port catheter according to claim 1, wherein the second catheter connection is arranged on a side of the port catheter.

4. The port catheter according to claim 1, wherein the port housing has three port housing elements and wherein, the first port housing element has a recess for receiving the second port housing element and the third port housing element, the second port housing element has a recess for receiving the third port housing element and the third port housing element is arranged between the first port housing element and the second port housing element.

5. The port catheter according to claim 4, further comprising a first seal arranged between the first port housing element and the third port housing element and extending around the first catheter connection.

6. The port catheter according to claim 5, further comprising a second seal arranged between the first port housing element and the second port housing element and extending around the third catheter connection.

7. The port catheter according to claim 6, further comprising a channel which runs between the second port housing element and the third port housing element and is sealed by the first seal and the second seal, said channel connecting the second catheter connection to the third catheter connection.

8. The port catheter according to claim 1, wherein the first catheter is longer than the second catheter.

9. The port catheter according to claim 1, wherein the port chamber has a needle stop.

10. An implantable system, comprising an implantable infusion pump and a port catheter including a port housing, a port chamber formed in the port housing and closed by a septum, the port chamber configured to receive a first fluid through the septum, a first catheter connection communicating with the port chamber for the connection of a first catheter, which discharges the first fluid from the port chamber, a second catheter connection for connecting a second catheter connected to an infusion pump and supplying a second fluid to the port catheter from the infusion pump, and a third catheter connection communicating with the second catheter connection for connecting a third catheter which discharges the second fluid supplied by the infusion pump, the port catheter being configured to prevent the first and second fluids from coming in contact with one another, wherein the infusion pump is connected by the second catheter to the second catheter connection of the port catheter.

11. The port catheter according to claim 10, further comprising a first side and a second side and wherein the septum is located on the first side of the port catheter and wherein the first catheter connection and the third catheter connection are arranged on the second side of the port catheter opposite the septum.

12. The port catheter according to claim 10, wherein the second catheter connection is arranged on a side of the port catheter.

13. The port catheter according to claim 10, wherein the port housing has three port housing elements and wherein, the first port housing element has a recess for receiving the second port housing element and the third port housing element, the second port housing element has a recess for receiving the third port housing element and the third port housing element is arranged between the first port housing element and the second port housing element.

14. The port catheter according to claim 13, further comprising a first seal arranged between the first port housing element and the third port housing element and extending around the first catheter connection.

15. The port catheter according to claim 14, further comprising a second seal arranged between the first port housing element and the second port housing element and extending around the third catheter connection.

16. The port catheter according to claim 15, further comprising a channel which runs between the second port housing element and the third port housing element and is sealed by the first seal and the second seal, said channel connecting the second catheter connection to the third catheter connection.

17. The port catheter according to claim 10, wherein the first catheter is longer than the second catheter.

18. The port catheter according to claim 10, wherein the port chamber has a needle stop.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) The invention is explained in greater detail below with reference to a particularly preferably designed exemplary embodiment shown in the attached drawings, which is set up in particular for implantation in the cranium of a Parkinson's patient and for the infusion of liquids into a ventricle. In the drawings:

(2) FIG. 1 shows a perspective view of a particularly preferably designed exemplary embodiment according to the invention;

(3) FIG. 2 shows a plan view of the exemplary embodiment shown in FIG. 1;

(4) FIG. 3 shows a sectional view of the exemplary embodiment shown above along the line 3-3 illustrated in FIG. 2; and

(5) FIG. 4 shows a sectional view of the exemplary embodiment shown above along the line 4-4 illustrated in FIG. 2.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

(6) FIG. 1 shows a perspective view of a particularly preferably designed exemplary embodiment according to the invention. In particular, FIG. 1 shows a particularly preferred port catheter 10 having a port housing 20 with a septum 30 embedded in the port housing 20, which closes a port chamber arranged in the port housing. Furthermore, a first catheter 55 communicating with the port chamber, a second catheter 65 connecting the port catheter 10 to an infusion pump (not shown) and a third catheter 75 communicating with the second catheter 65 are illustrated.

(7) In the plan view shown in FIG. 2 of the exemplary embodiment shown in FIG. 1, it can be seen that the septum 30 is arranged concentrically in the port housing 20, the port housing 20 being formed from a plurality of port housing elements 20a, 20b arranged concentrically to one another.

(8) Specifically, FIG. 3 which shows a sectional view of the exemplary embodiment shown above along the line 3-3 illustrated in FIG. 2 illustrates that the port housing 20 has three port housing elements 20a, 20b, 20c, wherein the first port housing element 20a has a recess for receiving the second port housing element 20b and the third port housing element 20c, the second port housing element 20b has a recess for receiving the third port housing element 20c, and the third port housing element 20c is arranged between the first port housing element 20a and the second port housing element 20b. The nested arrangement of these three port housing elements 20a, 20b, 20c enables the port chamber 40 to be easily formed and closed by the septum 30. In this case, the third port housing element 20c can be fixed simply by a fastener securing the second port housing element 20b to the first port housing element 20a.

(9) A first seal 80 arranged between the first port housing element 20a and the third port housing element 20c and extending around the first catheter connection 50 and a second seal 90 arranged between the first port housing element 20a and the second port housing element 20b and extending around the third catheter connection 70 are provided. These seals each ensure a contamination-free fluid line from the infusion pump connected to the second catheter 65 to the third catheter 75 and from the port chamber 40 to the first catheter 55, without the liquids conveyed by the two separate lines coming into contact with one another.

(10) The liquid line between the second catheter connection 60 and the third catheter connection 70 is in particular effected by a channel which runs between the second port housing element 20b and the third port housing element 20c and is sealed by the first seal 80 and the second seal 90. In particular, this channel is designed as an annular channel, so that it is independent of the correct insertion of the second and third port housing elements 20b, 20c into the first port housing element 20a.

(11) The first catheter connection 50 and the third catheter connection 70 are arranged adjacent to one another on the side of the port catheter 10 opposite the septum 30, the second catheter connection 60 being arranged on the side of the port catheter.

(12) Finally, it can be seen that the first catheter 55 is longer than the second catheter 75 and the port chamber 40 has a needle stop.

(13) To further illustrate the invention, FIG. 4 shows the exemplary embodiment again in a sectional view along the line 4-4 shown in FIG. 2.