Bone anchor implantation device and method
First Claim
Patent Images
1. A bone anchor implantation device for directing a bone anchor at a selected site, comprising:
- a housing having at least a first and a second stationary and generally parallel probe channels;
at least a first and a second generally parallel probes axially slidably extending through the housing the first and second probes being disposed in the first and second probe channels, respectively; and
a guide channel extending through the housing generally parallel to the first and second probe channels, the guide channel being situated generally in between the first and second probe channels such that a line extending transversely between the first and second probe channels intersects at least a portion of the guide channel, wherein the guide channel has a slot extending through a wall of the guide channel and longitudinally throughout substantially the entire length of the guide channel.
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Abstract
Bone anchor implantation devices for use in the surgical treatment of stress urinary incontinence are disclosed. Methods for positioning a bone anchor implantation device over a bone and for installing a bone anchor in a bone are also disclosed.
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Citations
18 Claims
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1. A bone anchor implantation device for directing a bone anchor at a selected site, comprising:
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a housing having at least a first and a second stationary and generally parallel probe channels; at least a first and a second generally parallel probes axially slidably extending through the housing the first and second probes being disposed in the first and second probe channels, respectively; and a guide channel extending through the housing generally parallel to the first and second probe channels, the guide channel being situated generally in between the first and second probe channels such that a line extending transversely between the first and second probe channels intersects at least a portion of the guide channel, wherein the guide channel has a slot extending through a wall of the guide channel and longitudinally throughout substantially the entire length of the guide channel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of percutaneously positioning a bone anchor implantation device over an unexposed bone, comprising the steps of:
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providing a bone anchor implantation device of the type comprising a housing, at least two axially extendable probes within the housing, said probes being extendable from a retracted position to an extended position, and a guide channel extending through the housing; positioning the guide channel over the unexposed bone; advancing the first probe through a first tissue path until the first probe contacts a first side of the unexposed bone; advancing the second probe through a second tissue path until said second probe contacts said first side of the unexposed bone; and if either one of the probes does not contact the unexposed bone, retracting at least that probe from the extended position to the retracted position, adjusting the position of the bone anchor implantation device, and then reextending at least that probe through a third tissue path until both probes contact the unexposed bone to assure that the guide channel is properly positioned over the unexposed bone. - View Dependent Claims (17, 18)
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12. A bone anchor implantation device for directing a bone anchor at a selected site, permitting introduction of the bone anchor through tissue and into a bone, comprising:
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a unitary housing; a textured soft tissue restraining structure on a distally facing tissue contacting surface of the housing; at least a first and a second generally parallel probes slidably extendable through the housing, said first and second probes being disposed in a first and a second probe channels, respectively; and a guide channel extending through the housing generally parallel to the first and second probe channels, the guide channel having a diameter which is larger than the diameter of the first and second probe channels so that the bone anchor can be advanced into the bone through the guide channel. - View Dependent Claims (13, 14, 15, 16)
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Specification