Wrist implant guide and method for orienting a guide wire for a wrist joint replacement
AssigneeNew York Society for the Relief of the Ruptured and Crippled, maintaining the Hospital for Special S
InventorsRyan Helbock, Scott Wolfe, Joseph Lipman
Life of this patent
Estimating the term…
Abstract
A device and method are described herein relating to a wrist implant guide assembly having a radial guide and a carpal guide. The radial guide may include a radial guide body having a patient-specific surface for matingly contacting a radial bone of a patient, and a radial guide wire aperture configured to direct a guide wire into a radial bone of the patient. The carpal guide may include a carpal guide body having a patient-specific surface for matingly contacting a capitate bone and a hamate bone of the patient, and a carpal guide wire aperture configured to direct a guide wire into a capitate bone of the patient.
Claims20
A wrist implant guide assembly comprising:
- a radial guide that includes:
- a radial guide body having a patient-specific surface for matingly contacting a radial bone of a patient, and a radial guide wire aperture configured to direct a guide wire into a radial bone of the patient;
- and
- a carpal guide that includes:
- a carpal guide body having a patient-specific surface for matingly contacting a capitate bone and a hamate bone of the patient, and a carpal guide wire aperture configured to direct a guide wire into a capitate bone of the patient.
A wrist implant guide assembly comprising:
- a radial guide that includes:
- a radial guide body having a patient-specific surface for matingly contacting a distal portion of the radial bone of a patient, and a substantially planar distal surface,
- a radial guide wire aperture configured to direct a guide wire into a radial bone of the patient,
- a plurality of peripheral radial guide wire apertures positioned peripherally about the radial guide wire aperture,
- a dorsal flange extending from the radial guide body having a patient-specific surface for matingly contacting and covering a Lister's tubercle of the patient, the dorsal flange including a plurality of stabilizer apertures extending in non-parallel and non-perpendicular directions relative to each other, and
- a guide wire housing extending from the radial guide body, the guide wire housing including the radial guide wire aperture;
- and
- a carpal guide that includes:
- a carpal guide body having a patient-specific surface for matingly contacting a capitate bone and a hamate bone of the patient, and a stationary base extending therefrom,
- a guide wire housing extending from the carpal guide body, the guide wire housing including a carpal guide wire aperture configured to direct a guide wire into a capitate bone of the patient,
- a plurality of peripheral carpal guide wire apertures positioned peripherally about the carpal guide wire aperture, and
- an alignment arm extending from the carpal guide body for engaging a third metacarpal of the patient, the alignment arm including a moveable arm engageable with the stationary base and a longitudinal length extending substantially parallel to an axis of the carpal guide wire aperture.
Dependencies are inferred from the claim text.