System and method for providing electrical and/or fluid treatment within a patient's brain
First Claim
1. A system for anchoring a lead-type member within a cranial burr hole in a patient, comprising:
- a feedthrough assembly made of a compressible material, having an axial opening therethrough for receiving the member, a fixation portion for being fixedly positioned within the burr hole, and an annular receiving portion; and
annular clamping means positioned around the receiving portion for compressing the assembly radially inward so as to fix the member relative to the assembly and thus with respect to the burr hole, the clamping means being made of a resilient material and normally biased so that when it engages the receiving portion it exerts a radially inward compressive force on the assembly at the receiving portion.
1 Assignment
0 Petitions
Accused Products
Abstract
A system and method for providing electrical and/or fluid treatment within a patient'"'"'s brain, the system and method utilizing a feedthrough assembly made of a compressible material, and a disk-like pinch-on part, or resilient clamping part, which is secured around the feedthrough assembly to provide radially inward compressive force to reliably fix the lead after it has been positioned relative to the patient'"'"'s skull. The feedthrough assembly is suitably made of a compressible biocompatible material such as silicone rubber, and has a annular receiving groove which is located so that it is accessible above the cranium after the feedthrough assembly is fixed within a burr hole in the patient'"'"'s head. The pinch-on part, or clamping means is manufactured in a normally closed position, but can be opened, as by use of a forceps-type instrument, for positioning around the assembly annular groove. The anchored lead or catheter member is operatively connected to an implantable pulse generator or fluid pump, or both, to provide a system for treatment within the patient'"'"'s brain.
286 Citations
20 Claims
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1. A system for anchoring a lead-type member within a cranial burr hole in a patient, comprising:
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a feedthrough assembly made of a compressible material, having an axial opening therethrough for receiving the member, a fixation portion for being fixedly positioned within the burr hole, and an annular receiving portion; and annular clamping means positioned around the receiving portion for compressing the assembly radially inward so as to fix the member relative to the assembly and thus with respect to the burr hole, the clamping means being made of a resilient material and normally biased so that when it engages the receiving portion it exerts a radially inward compressive force on the assembly at the receiving portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of reliably fixing a cranial lead member with respect to a patient'"'"'s skull, comprising:
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preparing a burr hole in the patient'"'"'s skull; providing a compressible feedthrough assembly having an axial aperture for receiving the member, and inserting the assembly into and fixing it within the burr hole; inserting the lead member axially through the assembly, and determining a proper axial location of the lead; and engaging a resilient pinch-on part around the assembly to compress the assembly radially inward so as to engage the member while it is at the proper axial location. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. A system providing treatment within a patient'"'"'s brain, the system comprising a lead member, the lead having a proximal and distal ends, a device connected to the lead proximal end for delivering fluid or electrical stimuli to the lead, the lead having delivery means for delivering fluid or electrical stimuli through its distal end to an area within the patient'"'"'s brain, and
anchoring means for anchoring the lead member within a cranial burr hole in the patient'"'"'s skull, the anchoring means further comprising: -
a feedthrough assembly made of a compressible material, having an axial opening therethrough for receiving the member, a fixation portion for being fixedly positioned within the burr hole, and an annular receiving portion; and annular clamping means positioned around the receiving portion for compressing the assembly radially inward so as to fix the member relative to the assembly and thus with respect to the burr hole, the clamping means being made of a resilient material and normally biased so that when it engages the receiving portion it exerts a radially inward compressive force on the assembly at the receiving portion. - View Dependent Claims (19, 20)
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Specification