US 11,752,351 B2
Seals for lead bores of implantable medical devices
Richard T. Stone, Minneapolis, MN (US); Michael T. Hegland, Mounds View, MN (US); Darren A. Janzig, Center City, MN (US); Dale F. Seeley, Spring Park, MN (US); Sean P. Skubitz, Forest Lake, MN (US); Ryan Davis, Plymouth, MN (US); and Salil M. Vaidya, Maharashtra (IN)
Assigned to MEDTRONIC, INC., Minneapolis, MN (US)
Filed by MEDTRONIC, INC., Minneapolis, MN (US)
Filed on Sep. 23, 2019, as Appl. No. 16/579,579.
Prior Publication US 2021/0085983 A1, Mar. 25, 2021
Int. Cl. A61N 1/37 (2006.01); A61N 1/375 (2006.01); A61M 39/00 (2006.01); A61F 2/30 (2006.01)
CPC A61N 1/3752 (2013.01) [A61M 39/00 (2013.01); A61F 2002/3007 (2013.01); A61M 2039/0054 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An implantable medical system, comprising:
a therapy delivery element having a proximal contact, a body, and a length;
a housing defining a first bore, the therapy delivery element being present within the first bore;
circuitry within the housing to at least one of deliver therapy to a patient or sense a biological signal of the patient;
an electrical connector positioned within the first bore and electrically coupled to the circuitry, with the proximal contact being in contact with the electrical connector; and
a monolithic elastic seal body coupled to the housing and having a wall that provides an outer surface of a portion of the housing, the monolithic elastic seal body comprising a first cylinder defining a seal bore, the first cylinder being positioned within the first bore and contacting the length of the therapy delivery element over a contact length of at least 0.010 inches and with an average contact pressure of no greater than (10 pounds per inch)/(contact length).