US2022233869A1PendingUtilityA1

Implantable device having one or more screws

76
Assignee: GIBSON PETERPriority: Apr 17, 2003Filed: Apr 11, 2022Published: Jul 28, 2022
Est. expiryApr 17, 2023(expired)· nominal 20-yr term from priority
Inventors:Peter Gibson
A61N 1/37518A61N 1/36038A61L 2430/14A61L 27/06A61L 27/306A61L 31/022A61N 1/375A61N 1/0541
76
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Claims

Abstract

An implantable device for mounting to a patient's bone includes a housing and at least one osseointegrating protuberance. The housing includes a surface having an abutting portion configured to abut the bone when the housing is implanted in the patient, the abutting portion defining a housing axis orthogonal to the surface. The at least one osseointegrating protuberance: extends from the surface of the housing; is adapted to abut the patient's bone; and has a substantially smooth shaft.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . An implantable device for mounting to a patient's bone, the device comprising:
 a housing including a surface having an abutting portion configured to abut the bone when the device is implanted in the patient, the abutting portion defining a housing axis orthogonal to the surface; and   at least one stud extending from the surface of the housing;   the at least one stud being adapted to abut the patient's bone; and   the at least one stud having a substantially smooth shaft.   
     
     
         2 . The implantable device of  claim 1 , wherein the at least one stud includes:
 first and second studs extending from the surface;   the first and second studs each being adapted to abut the patient's bone; and   the first and second studs each having a substantially smooth shaft.   
     
     
         3 . The implantable device of  claim 1 , wherein:
 the at least stud is configured to prevent only substantial relative lateral movement between the housing and the patient's bone.   
     
     
         4 . The implantable device of  claim 1 , wherein:
 the at least one stud is formed of one of titanium and a titanium alloy.   
     
     
         5 . The implantable device of  claim 1 , wherein the at least one stud includes:
 a core member; and   a coating on the core member, the coating being one of titanium and titanium alloy.   
     
     
         6 . The implantable device of  claim 1 , wherein:
 the at least one stud has a surface treatment that encourages osseointegration.   
     
     
         7 . The implantable device of  claim 1 , wherein:
 the surface of the housing is coated with a material configured to prevent osseointegration.   
     
     
         8 . An implantable component of a tissue stimulating prosthesis, the implantable component comprising:
 a housing including a surface having an abutting portion configured to abut the bone when the housing is implanted in the patient, wherein the abutting portion defines a housing axis orthogonal to the surface; and   one or more components of the prosthesis mounted in the housing; and   at least one stud extending from the surface of the housing; the at least one stud being adapted to abut the patient's bone; and   the at least one stud having a substantially smooth shaft.   
     
     
         9 . The implantable component of  claim 8 , wherein the at least one stud includes:
 first and second studs extending from the surface;   the first and second studs each being adapted to abut the patient's bone; and   the first and second studs each having a substantially smooth shaft.   
     
     
         10 . The implantable component of  claim 8 , wherein:
 the at least stud is configured to prevent only substantial relative lateral movement between the housing and the patient's bone.   
     
     
         11 . The implantable component of  claim 8 , wherein:
 the at least one stud is formed of one of titanium and a titanium alloy.   
     
     
         12 . The implantable component of  claim 11 , wherein the at least one stud includes:
 a core member; and   a coating on the core member, the coating being one of titanium and titanium alloy.   
     
     
         13 . The implantable component of  claim 8 , wherein:
 the at least one stud has a surface treatment that encourages osseointegration.   
     
     
         14 . The implantable component of  claim 8 , wherein:
 the tissue-stimulating prosthesis is a cochlear implant.   
     
     
         15 . The implantable component of  claim 14 , wherein:
 the one or more components mounted in the housing are configured to function as a stimulator unit of the cochlear implant.   
     
     
         16 . A method for implanting an implantable device having a housing with an abutting surface and at least one stud extending from the housing, the method comprising:
 forming a pocket in the patient's bone to receive the housing;   positioning the housing in the pocket; and   simultaneously with positioning the housing in the pocket, positioning the stud so as to be in direct contact with a surface of the patient's bone forming the pocket.   
     
     
         17 . The implantable device of  claim 1 , wherein the at least one stud is integral with at least a portion of the housing. 
     
     
         18 . The implantable device of  claim 8 , wherein the at least one stud is integral with at least a portion of the housing. 
     
     
         19 . The method of  claim 16 , wherein the at least one stud projects below a surface of the pocket when positioned in the pocket. 
     
     
         20 . The method of  claim 16 , wherein the at least one stud comprises a plurality of studs.

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