Port system with opposing clamping jaws
The invention relates an implantable access device for a catheter for supplying an active substance to an active site. The inventive access device comprises a chamber which is arranged in a housing for receiving the active substance and is closed with a piercable membrane. A connecting piece, to which the catheter is connectable, is fluidly connected to the chamber. The catheter is fixed by clamps that are fixable to the housing preferably by means of elastic fixing arms. The chamber receiving the active substance is embodied in an insertion element that is arranged in a recess of the housing by an intermediate clamping of the intermediate layer of the membrane in such a way that the insertion element produces a pressure force to said membrane.
1. A port for a catheter, the port comprising:
a chamber for receiving active substances, the chamber arranged in a housing and closed off by a piercable membrane,
a connecting piece, the connecting piece capable of connecting to the catheter and in fluid communication with the chamber;
movable clamping jaws, the clamping jaws having clamping faces that are situated opposite one another, the clamping jaws being movable from a first position, in which the clamping jaws are spaced away from the housing laterally, to a second position in which the clamping jaws fix the catheter in place between their clamping faces by a clamping action, the clamping jaws being connected to the housing when the clamping jaws are in each of the first position and the second position.
2. The port of claim 1 , wherein the clamping jaws are fastened to the housing by fastening arms having a resilient form.
3. The port of claim 1 , wherein the fastening arms form a clasp that fits around the sides of the housing and is fastened to the housing at the opposite end from the connecting piece.
4. The port of claim 1 , wherein the clamping jaws are secured to the housing by latching in the second position.
5. The port of claim 1 , wherein the housing has guide grooves that guide the clamping jaws.
6. The port of claim 5 , wherein steps are formed in the guide grooves, and the clamping jaws have latching hooks which, in the second position, are locked to the steps by latching.
7. The port of claim 1 , wherein the clamping jaws have spigots and holes that are associated with one another and engage in the second position.
8. The port of claim 1 , wherein the chamber is formed in an insert element that is locked in an opening in the housing with the membrane interposed and clamped such that the insert element exerts an applying pressure on the membrane.
9. The port of claim 8 , wherein the insert element and the housing form a bayonet connection.
10. The port of claim 8 , wherein the insert element has a projecting step and the opening in the housing has a groove with a lateral undercut in which the projecting step on the insert element seats.
11. The port of claim 9 , wherein the insert element has a projecting step and the opening in the housing has a groove with a lateral undercut in which the projecting step on the insert seats.
12. The port of claim 8 , wherein mutually aligning holes are provided in the housing and the insert element, and the connecting piece is a cannula that is inserted in the holes in the housing and the insert element.
13. The port of claim 9 , wherein mutually aligning holes are provided in the housing and the insert element, and the connecting piece is a cannula that is inserted in the holes in the housing and the insert element.
14. The port of claim 10 , wherein mutually aligning holes are provided in the housing and the insert element, and the connecting piece is a cannula that is inserted in the holes in the housing and the insert element.
15. The port of claim 14 , wherein the lateral undercut and mutually aligning holes are arranged diametrically opposite one another.
16. The port of claim 9 , wherein at least one of the membrane and the insert element and the connecting piece are adhesive-bonded to the housing.
17. The port of claim 14 , wherein at least one of the membrane and the insert element and the connecting piece are adhesive-bonded to the housing.
18. The port of claim 1 , wherein the port is an injection moulding.
19. The port of claim 15 , wherein the port is an injection moulding.
20. A port for a catheter, the port comprising:
a chamber for receiving active substances, the chamber arranged in a housing and closed off by a piercable membrane,
a connecting piece, the connecting piece capable of connecting to the catheter and in fluid communication with the chamber;
movable clamping jaws, the clamping jaws having clamping faces that are situated opposite one another, the clamping jaws being movable from a first position, in which the clamping jaws are spaced away from the housing laterally, to a second position in which the clamping jaws fix the catheter in place between their clamping faces by a clamping action, the clamping jaws being connected to the housing when the clamping jaws are in each of the first position and the second position, and
wherein the clamping jaws are movable relative to each other capable of clamping a catheter therebetween.