Neurological apparatus comprising a percutaneous access device
First Claim
1. Apparatus for delivering a therapeutic agent to the central nervous system, comprising:
- at least two intracranial catheters;
a percutaneous access device, the percutaneous access device comprising a body having at least one extracorporeal surface and at least one subcutaneous surface, the body defining at least two ports for connection to said intracranial catheters, each port being accessible from the extracorporeal surface of the device, but being provided with a seal between the lumen of the port and the extracorporeal surface, each port separately passing through the body such that each intracranial catheter is separately accessible from the extracorporeal surface of the device, the at least one subcutaneous surface comprising a portion that encourages skin to form a tight junction with the percutaneous access device,wherein each of the intracranial catheters is connected to a respective one of the ports of the percutaneous access device by a respective passage, each passage comprising a tube extending from within multilumen tubing and exiting the percutaneous access device in the same direction.
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Accused Products
Abstract
Apparatus for delivering therapeutic agents to the central nervous system of a subject is described. The apparatus comprises at least one intracranial catheter and a percutaneous access device. The percutaneous access device comprises a body having at least one extracorporeal surface and at least one subcutaneous surface, the body defining at least one port for connection to an implanted intracranial catheter. The port is accessible from the extracorporeal surface of the device, but is provided with a seal such as a rubber bung between the lumen of the port and the extracorporeal surface. The percutaneous access device may have more than two ports and/or a flange. A method of implanting the percutaneous access device is also described.
36 Citations
25 Claims
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1. Apparatus for delivering a therapeutic agent to the central nervous system, comprising:
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at least two intracranial catheters; a percutaneous access device, the percutaneous access device comprising a body having at least one extracorporeal surface and at least one subcutaneous surface, the body defining at least two ports for connection to said intracranial catheters, each port being accessible from the extracorporeal surface of the device, but being provided with a seal between the lumen of the port and the extracorporeal surface, each port separately passing through the body such that each intracranial catheter is separately accessible from the extracorporeal surface of the device, the at least one subcutaneous surface comprising a portion that encourages skin to form a tight junction with the percutaneous access device, wherein each of the intracranial catheters is connected to a respective one of the ports of the percutaneous access device by a respective passage, each passage comprising a tube extending from within multilumen tubing and exiting the percutaneous access device in the same direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 23, 24, 25)
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- 21. A percutaneous access device for use with more than two intracranial catheters, the percutaneous access device comprising a body having at least one extracorporeal surface and at least one subcutaneous surface, the body defining more than two ports for connection to the more than two intracranial catheters, the more than two ports being accessible from the extracorporeal surface of the device, but being provided with a seal between the lumen of each port and the extracorporeal surface, each port separately passing through the body such that each intracranial catheter is separately accessible from the extracorporeal surface of the device, the at least one subcutaneous surface comprising a portion that encourages skin to form a tight junction with the percutaneous access device, wherein each of the intracranial catheters is connected to a respective one of the ports of the percutaneous access device by a respective passage, each passage comprising a tube extending from within multilumen tubing and exiting the percutaneous access device in the same direction.
Specification