CAS bone reference and less invasive installation method thereof
First Claim
1. A method for monitoring position and movement of a bone element using an image guided surgical system, comprising the steps of:
- providing a bone reference assembly comprising a toothed bone anchor member and a trackable member, the trackable member comprising a detectable element adapted to be located and tracked in three dimensional space by the image guided surgical system, thereby defining position and movement of the trackable member;
inserting a protective guide member through soft tissue covering the bone element using a proximal end adapted for gradual separation of the soft tissue so as not to cause significant damage thereto, such that the proximal end is substantially adjacent the bone element, the protective guide member being sized to receive at least the toothed bone anchor member therein;
using the protective guide member to guide the toothed bone anchor member into direct engagement with the bone element;
engaging the toothed bone anchor member to the bone element such that the bone reference assembly is in a fixed position relative to the bone element;
performing a registration of the bone element; and
locating and tracking the bone element using the image guided surgical system.
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Accused Products
Abstract
A surgical bone reference assembly is communicable with an image guided surgical system such that position and movement of a bone element are monitorable. A bone anchor member comprises a trackable member and teeth engageable with the bone element. The trackable member comprises a detectable element adapted to be located and tracked in three dimensional space by the image guided surgical system, thereby defining position and movement of the trackable member. A protective guide member is used with the bone anchor member such that the bone anchor member is insertable through soft tissue covering the bone element without causing significant damage thereto. The bone anchor member is engageable with the bone element, such that the teeth are forced into engagement with the bone element and the bone anchor member is fastenable to the bone element in a fixed relation thereto.
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Citations
27 Claims
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1. A method for monitoring position and movement of a bone element using an image guided surgical system, comprising the steps of:
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providing a bone reference assembly comprising a toothed bone anchor member and a trackable member, the trackable member comprising a detectable element adapted to be located and tracked in three dimensional space by the image guided surgical system, thereby defining position and movement of the trackable member;
inserting a protective guide member through soft tissue covering the bone element using a proximal end adapted for gradual separation of the soft tissue so as not to cause significant damage thereto, such that the proximal end is substantially adjacent the bone element, the protective guide member being sized to receive at least the toothed bone anchor member therein;
using the protective guide member to guide the toothed bone anchor member into direct engagement with the bone element;
engaging the toothed bone anchor member to the bone element such that the bone reference assembly is in a fixed position relative to the bone element;
performing a registration of the bone element; and
locating and tracking the bone element using the image guided surgical system. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A surgical bone reference assembly communicable with an image guided surgical system such that position and movement of a bone element are monitorable, the bone reference assembly comprising:
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a bone anchor member comprising a trackable member and teeth engageable with the bone element, the trackable member comprising a detectable element adapted to be located and tracked in three dimensional space by the image guided surgical system, thereby defining position and movement of the trackable member; and
a protective guide member for use with the bone anchor member such that the bone anchor member is insertable through soft tissue covering the bone element without causing significant damage thereto;
the bone anchor member being engageable with the bone element, such that the teeth are forced into engagement with the bone element and the bone anchor member is fastenable to the bone element in a fixed relation thereto. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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Specification