| 摘要 |
An implantable lead connector assembly includes core and contact circuits held together and isolated from one another by insulation. The core circuit includes a conductive core and a conductor pin, which has a proximal end coupled to an outer surface of the core, and a distal end spaced outward from the outer surface and protruding distally from the insulation. Insulation sealing surfaces extend on either side of an outer contact surface of each contact circuit, and the sealing and contact surfaces define a uniform outer diameter of the assembly. A conductor pin of each contact circuit has a proximal end coupled to an inner surface of a contact ring of the corresponding circuit, and a distal end that protrudes distally from the insulation. The insulation may be formed by injection molding, and then outer surfaces of the molded insulation and contact ring(s) are ground down to the uniform outer diameter. |
| 主权项 |
1. An assembly for a connector of an implantable medical electrical lead, the assembly having a uniform outer diameter conforming to a requirement for the lead connector to mate with a connector receptacle of an implantable medical device, and the assembly comprising:
a conductive core extending from a proximal end thereof to a distal end thereof, along a central longitudinal axis of the assembly; three contact rings extending around the conductive core and spaced apart from one another along a length of the core, each of the rings having an inner surface, and an outer contact surface, each outer contact surface defining the uniform outer diameter; four conductor pins, each pin extending from a proximal end thereof to a distal end thereof, alongside the conductive core, the proximal end of a first pin of the four conductor pins being coupled to the inner surface of a first ring of the three contact rings, the proximal end of a second pin of the four conductor pins being coupled to the inner surface of a second ring of the three contact rings, the proximal end of a third pin of the four conductor pins being coupled to the inner surface of a third ring of the three contact rings, the proximal end of a fourth pin of the four conductor pins being coupled to an outer surface of the conductive core, and the fourth pin having a bend formed therein, the bend being located between the proximal end of the fourth pin and a remainder of the pin such that the remainder is spaced outward from the outer surface of the conductive core; and a bulk of insulation extending around the conductive core and the four conductor pins, and extending proximal to, and distal to the three contact rings, and extending between the three contact rings, the bulk of insulation including an outer surface divided into a first, second, third, and fourth sealing surfaces, the first sealing surface extending proximally from the first ring to a proximal end of the assembly, the second sealing surface extending between the first and second rings, the third sealing surface extending between the second and third rings, the fourth sealing surface extending distally from the third ring, each sealing surface also defining the uniform outer diameter of the assembly; and wherein the distal end of each conductor pin protrudes distally from the bulk of insulation; and the distal ends of the conductor pins are spaced apart from one another, and spaced approximately equidistant from the central longitudinal axis. |
