Cranial burr hold plug and insertion tool
AssigneeBoston Scientific Neuromodulation Corporation
InventorZdzislaw B. Malinowski
Life of this patent
Estimating the term…
Abstract
A cranial burr hole plug with an insertion tool and method of implantation is provided. The burr hole plug includes a shell; a collet interlocked within the shell; a clamp compressing the collet around an elongated medical device exiting the skull of a patient, such as a catheter or lead; and a cover over the clamp, collet, and shell. The insertion tool inserts the collet within the shell and locks the collet around the clamp. The method of implantation includes inserting the burr hole plug components in a cranial burr hole using the insertion tool and securing the exiting medical device without disturbing the position of the medical device.
Claims17
An insertion tool for use with a burr hole plug comprising a collet having a conical configuration and a plurality of slots, and a clamp comprising a plurality of holes, comprising:
- a body having first and second ends and forming an interior lumen extending longitudinally between the first and second ends, wherein the lumen has a conical section for receiving the collet, the diameter of the conical section converging from the first end to the second end;
- a plurality of rectangular ribs extending from the first end for engaging the plurality of slots of the collet;
- a plurality of cylindrical pins extending from the second end for engaging the plurality of holes of the clamp;
- and
- a side slot extending longitudinally along the body and in communication with the interior lumen that is expandable to alter the cross-section of the interior lumen.
A kit for plugging a burr hole, comprising:
- a burr hole plug, the burr hole plug comprising,
- a shell capable of being inserted in a burr hole of a skull comprising a plurality of slots;
- a collet comprising a plurality of slots, wherein the collet is compressible and capable of interlocking with the shell;
- a clamp comprising a plurality of pins and a plurality of holes, wherein the collet is capable of interlocking with the shell and compressing the collet and;
- a tool for assembling the burr hole plug in the burr hole comprising an internal lumen for receiving the collet, a plurality of ribs that engage the plurality of slots on the collet to rotate the collet, and a plurality of pins that engage the plurality of holes on the clamp to rotate the clamp.
A method for using an insertion tool to insert a burr hole plug in a burr hole formed in a skull, comprising the steps of:
- placing a shell into a burr hole;
- inserting a collet into the shell, wherein the collet comprises a plurality of slots;
- engaging the insertion tool with the collet by placing an internal lumen of the tool over the collet and engaging a plurality of ribs on the tool with the plurality of slots;
- rotating the insertion tool to interlock the collet with the shell;
- placing a clamp comprising a plurality of holes in the shell;
- engaging the tool with the clamp by engaging a plurality of pins on the tool with the plurality of holes;
- and
- rotating the insertion tool to interlock the clamp with the shell.
Dependencies are inferred from the claim text.