Implant device
First Claim
1. An implant device for a bone anchored hearing aid, comprising:
- a pre-mounted unit comprising a screw-shaped anchoring fixture configured to be anchored in bone tissue;
an abutment sleeve configured to penetrate skin and comprising a tool engaging portion, and a screw connecting the abutment sleeve to the fixture, wherein the tool engaging portion of the abutment sleeve comprises a plurality of symmetrically arranged recesses or holes; and
a tool configured to install the entire pre-mounted unit into the bone tissue in one step, wherein the tool is configured to cooperate with the tool engaging portion of the abutment sleeve when installing the implant into the bone tissue, and wherein the tool comprises a plurality of spikes configured to cooperate with the recesses or holes in the abutment sleeve during installation and tightening of the implant unit.
2 Assignments
0 Petitions
Accused Products
Abstract
An implant device for bone anchored hearing aids of the type that include a screw-shaped anchoring element for anchorage in the bone tissue, an abutment sleeve for skin penetration and arranged to be connected to the fixture with a screw connection and a tool for installing the implant into the bone tissue. The fixture and the abutment sleeve are made as a pre-mounted unit that unit is arranged to be installed in one step by means of the tool, which is arranged to cooperate with a tool engaging portion on the abutment sleeve. This arrangement requires fewer pieces to handle for the surgeon during the installation, which means that the surgical procedure can be carried out in a simpler and predetermined way, at the same time as the advantages inherent in a two-piece implant device are maintained.
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Citations
11 Claims
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1. An implant device for a bone anchored hearing aid, comprising:
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a pre-mounted unit comprising a screw-shaped anchoring fixture configured to be anchored in bone tissue; an abutment sleeve configured to penetrate skin and comprising a tool engaging portion, and a screw connecting the abutment sleeve to the fixture, wherein the tool engaging portion of the abutment sleeve comprises a plurality of symmetrically arranged recesses or holes; and a tool configured to install the entire pre-mounted unit into the bone tissue in one step, wherein the tool is configured to cooperate with the tool engaging portion of the abutment sleeve when installing the implant into the bone tissue, and wherein the tool comprises a plurality of spikes configured to cooperate with the recesses or holes in the abutment sleeve during installation and tightening of the implant unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification