Method and systems for establishing vascular access
First Claim
1. A system for establishing access to a body lumen in a patient, said system comprising:
- an implantable port;
a distal access cannula having a distal end, a proximal end, and a lumen therethrough, wherein the distal end of the distal access cannula is adapted for connection to the body lumen to provide fluid communication between the body lumen and the distal cannula lumen;
a proximal access cannula having a distal end, a proximal end, and a lumen therethrough, wherein a proximal end of the proximal access cannula is adapted for connection to the implantable port to provide fluid communication between the port and the proximal cannula lumen; and
subcutaneously implantable means for directly connecting the proximal end of the distal catheter to the distal end of the proximal catheter to establish fluid communication between their respective lumens, wherein the implantable means directs all fluid exiting the distal end of the proximal access cannula to the proximal end of the distal access cannula.
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Abstract
A body lumen access system comprises a distal access cannula and a proximal access cannula. The distal access cannula is attached to or within the body lumen and the proximal access cannula is attached to an implantable port or is transcutaneously positioned and attached to a luer or other external connector. The distal and proximal access cannulas are usually implanted separately, cut to length, and attached at a subcutaneous junction location. Preferably, the proximal access cannula has a larger lumen diameter than that of the distal access cannula in order to reduce flow resistance within the cannula system. In some cases the distal and proximal access cannulas may be formed integrally.
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Citations
21 Claims
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1. A system for establishing access to a body lumen in a patient, said system comprising:
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an implantable port;
a distal access cannula having a distal end, a proximal end, and a lumen therethrough, wherein the distal end of the distal access cannula is adapted for connection to the body lumen to provide fluid communication between the body lumen and the distal cannula lumen;
a proximal access cannula having a distal end, a proximal end, and a lumen therethrough, wherein a proximal end of the proximal access cannula is adapted for connection to the implantable port to provide fluid communication between the port and the proximal cannula lumen; and
subcutaneously implantable means for directly connecting the proximal end of the distal catheter to the distal end of the proximal catheter to establish fluid communication between their respective lumens, wherein the implantable means directs all fluid exiting the distal end of the proximal access cannula to the proximal end of the distal access cannula. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A kit comprising:
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a system comprising a distal access cannula and a proximal access cannula;
instructions for use setting forth a method as follows;
implanting the distal access cannula between the body lumen and a subcutaneous junction location;
implanting the proximal access cannula between the subcutaneous junction location and a catheter connection location;
adjusting the length of at least one of the distal access cannula and the proximal access cannula;
connecting a proximal end of the distal access cannula to a distal end of the proximal access cannula at the subcutaneous junction location; and
a package containing the system and instructions. - View Dependent Claims (21)
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Specification