Ventricular catheter assembly
First Claim
1. A ventricular catheter assembly for monitoring a brain parameter through an opening in a skull of a living patient, the catheter assembly comprising:
- bolt means having an elongated chamber therethrough, a proximal extremity, and distal extremity adapted for insertion into an opening in the skull in sterile relation;
a catheter disposed through the chamber in the bolt means, and including a lumen, and a flexible distal extremity for penetrating a ventricle of the brain, the flexible extremity having an opening for the lumen to the exterior of the flexible distal extremity; and
clamping means connected to the proximal extremity of the bolt means and operative to forcibly engage the catheter and constrain the catheter against movement relative to the bolt means such that a predetermined depth of insertion of the catheter into the brain can be maintained.
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Accused Products
Abstract
A catheter assembly comprising a catheter having a lumen and characterized by a flexible distal extremity. The assembly further comprises a bolt having a threaded distal extremity for threading into an opening in the skull in sterile relation. The bolt includes an elongated chamber extending between its distal extremity and a threaded proximal extremity of the bolt. The catheter is disposed through the bolt chamber, and includes an opening from the lumen to the exterior of its flexible distal extremity. A clamp is threaded onto the catheter proximal extremity and is operative to forcibly engage the catheter and constrain it against movement relative to the bolt to thereby maintain a predetermined depth of insertion of the catheter into the skull.
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Citations
12 Claims
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1. A ventricular catheter assembly for monitoring a brain parameter through an opening in a skull of a living patient, the catheter assembly comprising:
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bolt means having an elongated chamber therethrough, a proximal extremity, and distal extremity adapted for insertion into an opening in the skull in sterile relation; a catheter disposed through the chamber in the bolt means, and including a lumen, and a flexible distal extremity for penetrating a ventricle of the brain, the flexible extremity having an opening for the lumen to the exterior of the flexible distal extremity; and clamping means connected to the proximal extremity of the bolt means and operative to forcibly engage the catheter and constrain the catheter against movement relative to the bolt means such that a predetermined depth of insertion of the catheter into the brain can be maintained. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A ventricular catheter assembly for monitoring a brain parameter through an opening in a skull of a living patient, the catheter assembly comprising:
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bolt means having an elongated chamber therethrough, a threaded proximal extremity, and a threaded distal extremity for threading into an opening in the skull in sterile relation; a catheter disposed through the chamber in the bolt means and including a lumen and flexible distal extremity for penetrating a ventricle of the brain, the flexible distal extremity being apertured for communication between the lumen and any fluid adjacent the catheter, the catheter defining an annular space with a portion of the walls of the chamber; compressible mans disposed in the annular space; clamping means threaded onto the proximal extremity of the bolt means and operative to tighten upon the proximal extremity to compress the compressible means against the catheter and constrain the catheter against movement relative to the bolt means such that a predetermined depth of insertion of the catheter into the brain can be maintained. - View Dependent Claims (11, 12)
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Specification