HUBERT CÉCILE FRANÇOIS MARTENS,DANIËL WILLEM ELISABETH SCHOBBEN
申请号：
NL2022555
公开号：
NL2022555B1
申请日:
2019.02.11
申请国别(地区):
NL
年份:
2020
代理人:
摘要：
3 1 _ D' ABSTRACT: (Ti Implantable stimulation systems may be used to deliver electrical % stimulation therapy to patients to treat a variety of symptoms or conditions such as â headaches, lower back pain and incontinence. Conventional implantable leads comprise ‘g 3 one or more restraints in the form of barbs to reduce the risk of lead migration. However, % 5 these barbs make it more difficult to explant (remove) the medical lead. They may also ä lead to reduced comfort, and often results in the lead protrusions piercing through the Ê. :' skin. m 3 An implantable restraint (100, 101, 102) is provided comprising an opening (500), <；2 9) extending through the substrate (300), configured to receive in—growth of human or g 10 animal tissue after implantation such that a tissue anchor may form； a pair of protrusions ä 3 (401, 404), between the opening (500) and a distal edge, providing an anchor resistance to â a longitudinal force (610)； Wherein the pair of protrusions (401, 404) are further cô”- configured to separate by a distance approximately equal to a transverse extent (700) of 3 the tissue anchor when the longitudinal force (610) exceeds a first predetermined % 15 threshold, such that the pair of protrusions (401, 404) moves past the tissue anchor in the Ê direction of the longitudinal force (610). Ë 3 By providing one or more openings extending through the substrate, the 5 growth of tissue which naturally occurs after implantation is utilised to assist in securing 3 the implantable restraint at the implantation Site. By prov1d1ng the pair of protrus1ons g 20 configured to provide resistance, a high degree of control of the restraining force and the 3 m explantation force is provided. â.- ä (Fig. 1) € € â 25 ‚€ 9) 3 <； :: E. b o 3
