Skull mounted electrode lead securing assembly
First Claim
1. An electrode securing assembly for securing an electrode lead to a skull of a patient;
- comprising;
a cylindrical port element for seating in a hole formed in said skull of said patient, said port element including a central channel providing communication between an interior of said skull and an exterior of said skull, at least one engaging means formed on at least one inner surface of said central channel, and at least one exterior conformation for gripping an interior surface of an opening formed in said skull of said patient;
a lead locking element having an upper and lower portion, said lead locking element seating within the central channel of said port element, having at least one corresponding engaging means formed on the exterior surface thereof, said at least one engaging means of said port element and said at least one corresponding engaging means of said lead locking element for securing said lead locking element to said at least one engaging means of said port element;
said lead locking element further including an axial passage for receiving therethrough an electrode lead which has a portion implanted within said patient'"'"'s skull and a portion remaining external to said skull, such that said electrode may initially freely slide within said passage;
said lead locking element further including a track formed in said upper portion thereof;
a sliding element, mounted in said track of said lead locking element, which may be selectively translated along said track between at least two distinct positions, at least one of which partially blocks said axial passage in said lead locking element, and at least one position which does not block said axial passage;
such that when said sliding element is translated into the axial passage blocking position, and when there is an electrode lead disposed in said passage it is prevented from further movement through the passage.
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Accused Products
Abstract
An assembly for securing an electrode lead within a burr hole formed in a patient'"'"'s skull. The assembly is provided for reliably, easily, and reversibly securing an implanted electrode lead such that the active portion of the lead which is inside the brain tissue within the skull is not subject to unwanted translations when the external portion of the lead is manipulated. The securing assembly has two separate components. The first is a bone port which seats within a preformed burr hole in the skull. The bone port is a cylindrical shaped short tube which includes a means for gripping the skull on the external periphery of the cylinder. The central axial hole of the port is designed to receive the second lead-locking portion of the assembly. The external surface of the lead-locking portion and the interior surface of the central axial hole of the port include an easily engageable coupling means, for example a bayonet locking mechanism. The lead-locking portion has a central electrode passage through which the electrode lead may slide freely in an unlocked disposition. The upper section of the lead-locking portion includes a sliding member which may be selectively manipulated between a closed and open position. The sliding member has a lateral edge which, when the member is moved into the closed position, partially occludes the electrode passage such that an electrode is secured by friction in the passage, thus preventing movement of the active implanted portion of the electrode within the skull. The external portion of the electrode, however, can be manipulated freely.
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Citations
8 Claims
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1. An electrode securing assembly for securing an electrode lead to a skull of a patient;
- comprising;
a cylindrical port element for seating in a hole formed in said skull of said patient, said port element including a central channel providing communication between an interior of said skull and an exterior of said skull, at least one engaging means formed on at least one inner surface of said central channel, and at least one exterior conformation for gripping an interior surface of an opening formed in said skull of said patient;
a lead locking element having an upper and lower portion, said lead locking element seating within the central channel of said port element, having at least one corresponding engaging means formed on the exterior surface thereof, said at least one engaging means of said port element and said at least one corresponding engaging means of said lead locking element for securing said lead locking element to said at least one engaging means of said port element;
said lead locking element further including an axial passage for receiving therethrough an electrode lead which has a portion implanted within said patient'"'"'s skull and a portion remaining external to said skull, such that said electrode may initially freely slide within said passage;
said lead locking element further including a track formed in said upper portion thereof;
a sliding element, mounted in said track of said lead locking element, which may be selectively translated along said track between at least two distinct positions, at least one of which partially blocks said axial passage in said lead locking element, and at least one position which does not block said axial passage;
such that when said sliding element is translated into the axial passage blocking position, and when there is an electrode lead disposed in said passage it is prevented from further movement through the passage. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
- comprising;
Specification