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Fixation Method and Device for an Implantable Medical Device

IP.com Disclosure Number: IPCOM000129247D
Publication Date: 2005-Oct-03
Document File: 4 page(s) / 26K

Publishing Venue

The IP.com Prior Art Database

Abstract

The present invention relates to the field of implantable medical devices and more particularly to a fixation method and device used to secure an implantable medical component, e.g. implantable pulse generator (IPG), in the preferred location of the skull or other bony area of the body. The disclosed fixation method and device may be used with a component of a cochlear implant system or other implantable devices.

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Fixation Method and Device for an Implantable Medical Device

Background

    The present invention relates to the field of implantable medical devices and more particularly to a fixation method and device used to secure an implantable medical component, e.g. implantable pulse generator (IPG), in the preferred location of the skull or other bony area of the body. The disclosed fixation method and device may be used with a component of a cochlear implant system or other implantable devices.

    During the surgical procedure of securing a component of an implantable device to a bone, a fixation method is necessary. A variety of these methods exist, for example, one known method is the use of a suture anchor. Such methods are disclosed in U.S. Patents 6,106,545; 5,569,303; and 5,807,403. The suture anchor methods described in these patents relate to drilling into the bone area, interweaving thread into the drilled channel(s), embedding an anchor into the bone for attaching implantable objects, or adding staples to the bone to secure the suture thread. These methods require intensive drilling into the bone and then interweaving segments of suture thread.

    A variety of fixation methods are used in the medical field to secure implantable medical devices. Many of these fixation methods require the step of drilling through the bone area and interweaving a suture thread or wire through the drilled channel(s). Reducing the required steps to secure an implantable component would benefit the surgeon during the implantation procedure. The present disclosure provides a plastic or metal structure with an accompanying template to guide the surgeon in preparing and installing a hold-down mechanism for securing the IPG device in a secure and safe manner.

Detailed Description

    FIG. 1 shows an implantable device 10, such as an implantable pulse generator (IPG), mounted to the skull 12 or other large bony surface. This prior art fixation method requires drilling of suture channels 13 and 14 and threading suture wire or thread 16 into the first channel; threading the suture-wire from the first channel over the implantable device 10; threading the suture-wire into the second channel; and securing both ends of the suture-wire with a knot 15. Often, th...