Device for guiding piercing tools for placing a glenoid implant
AssigneesFournitures Hospitalieres Industrie, Philippe Valenti, F.H. Inc.
InventorsPhilippe Valenti, Alain Aaron
Life of this patent
Estimating the term…
Abstract
A guide device having a guide body including a bearing surface designed to bear in a glenoidal cavity of a scapula that has been prepared beforehand, the guide body including at least one through orifice emerging in the bearing surface, a reference member mounted on the guide body and including a bearing portion designed to bear on the anterior cortex of the scapula, and adjustment means arranged to adjust the position of the reference member with respect to the guide body so as to adjust the distance between the bearing portion and an axis of the through orifice.
Claims17
A guide device for guiding piercing tools for placing a glenoid implant, comprising:
- a guide body comprising a bearing surface designed to bear in a glenoidal cavity of a scapula that has been prepared beforehand, the guide body comprising at least one through orifice emerging in the bearing surface,
- a reference member mounted on the guide body and including a bearing portion designed to bear on the anterior cortex of the scapula,
- an adjustment assembly configured to adjust the position of the reference member with respect to the guide body so as to adjust the distance between the bearing portion and an axis of the through orifice, and
- a support pin configured to be implanted in the glenoidal cavity and inserted into the through orifice,
- wherein the height of the through orifice substantially corresponds to the diameter of the support pin,
- wherein the through orifice further includes a travel portion arranged so as to allow an angular travel of the guide body along a travel plane when the support pin is implanted in the glenoidal cavity and is inserted into the through orifice.
A guide device for guiding piercing tools for placing a glenoid implant, comprising:
- a guide body comprising a bearing surface designed to bear in a glenoidal cavity of a scapula that has been prepared beforehand, the guide body comprising at least one through orifice emerging in the bearing surface,
- a reference member mounted on the guide body and including a bearing portion designed to bear on the anterior cortex of the scapula,
- adjustment means arranged to adjust the position of the reference member with respect to the guide body so as to adjust the distance between the bearing portion and an axis of the through orifice, and
- a support pin configured to be implanted in the glenoidal cavity and inserted into the through orifice,
- wherein the height of the through orifice substantially corresponds to the diameter of the support pin,
- wherein the through orifice further includes a travel portion arranged so as to allow an angular travel of the guide body along a travel plane when the support pin is implanted in the glenoidal cavity and is inserted into the through orifice.
A method placing a glenoid implant, including:
- providing a guide device comprising:
- a guide body comprising a bearing surface designed to bear in a glenoidal cavity of a scapula that has been prepared beforehand, the guide body comprising at least one through orifice emerging in the bearing surface,
- a reference member mounted on the guide body and including a bearing portion designed to bear on the anterior cortex of the scapula,
- adjustment means arranged to adjust the position of the reference member with respect to the guide body so as to adjust the distance between the bearing portion and an axis of the through orifice, and
- a support pin configured to be implanted in the glenoidal cavity and inserted into the through orifice, wherein the through orifice further includes a travel portion arranged so as to allow an angular travel of the guide body along a travel plane when the support pin is inserted into the through orifice,
- adjusting the position of the reference member with respect to the guide body,
- implanting the support pin in a glenoidal cavity of a scapula to be treated,
- forming a concave spherical surface portion in the glenoidal cavity,
- inserting the support pin into the through orifice of the guide body,
- putting the bearing surface of the guide body in contact with the concave spherical surface portion formed in the glenoidal cavity,
- positioning the guide body in a horizontal plane,
- angularly moving the guide body with respect to the support pin in the horizontal plane to obtain a bearing of the bearing portion against the anterior cortex of the scapula, and
- inserting a piercing tool into the through orifice of the guide body so as to form a bone hole in the glenoidal cavity.
Dependencies are inferred from the claim text.