Connector header setscrew for an implantable medical device
First Claim
1. An implantable medical device having a connector header adapted to be coupled through the use of a tool to an electrical lead connector element of an elongated electrical medical lead, wherein:
- the connector header is formed of a header body having at least one header connector bore and a header grommet aperture having a grommet aperture sidewall;
a connector block is disposed within the connector header having a threaded bore having a spiral bore thread of a bore thread diameter aligned with the header grommet aperture and a connector block bore aligned with the header connector bore adapted to receive a lead connector element when a proximal connector assembly of the elongated electrical medical lead is received in the header connector bore;
a penetrable grommet formed of an elastomer material is disposed within the header grommet aperture; and
a setscrew having a setscrew socket in a setscrew body extending between a setscrew socket head and a setscrew working end is disposed between the penetrable grommet and the connector block, the setscrew body having a spiral setscrew thread mating with the spiral bore thread of the threaded bore, and the setscrew socket head having a socket head diameter exceeding the bore thread diameter, whereby the setscrew socket head is adapted to be engaged by the tool inserted through the penetrable grommet to enable rotation of the setscrew body within the threaded bore to tighten the setscrew working end against or to loosen the setscrew working end from a lead connector element received in the connector block bore, and the socket head diameter inhibits advancement of the setscrew all of the way through the threaded bore.
1 Assignment
0 Petitions
Accused Products
Abstract
Improvements in connector headers of implantable medical devices (IMDS) for making electrical and mechanical connections with a connector element of a proximal connector assembly of an electrical medical lead and components thereof are disclosed. A connector block disposed within a header body of the connector header has a threaded bore aligned with a header grommet aperture and a connector block bore aligned with a header connector bore. A penetrable grommet is disposed within the header grommet aperture, and a setscrew is threaded into the threaded bore having a setscrew socket disposed to be engaged by the tool inserted through the penetrable grommet within the header grommet aperture to enable rotation of the setscrew within the threaded bore to tighten the setscrew against or to loosen the setscrew from a lead connector element received in the header connector bore.
-
Citations
18 Claims
-
1. An implantable medical device having a connector header adapted to be coupled through the use of a tool to an electrical lead connector element of an elongated electrical medical lead, wherein:
-
the connector header is formed of a header body having at least one header connector bore and a header grommet aperture having a grommet aperture sidewall;
a connector block is disposed within the connector header having a threaded bore having a spiral bore thread of a bore thread diameter aligned with the header grommet aperture and a connector block bore aligned with the header connector bore adapted to receive a lead connector element when a proximal connector assembly of the elongated electrical medical lead is received in the header connector bore;
a penetrable grommet formed of an elastomer material is disposed within the header grommet aperture; and
a setscrew having a setscrew socket in a setscrew body extending between a setscrew socket head and a setscrew working end is disposed between the penetrable grommet and the connector block, the setscrew body having a spiral setscrew thread mating with the spiral bore thread of the threaded bore, and the setscrew socket head having a socket head diameter exceeding the bore thread diameter, whereby the setscrew socket head is adapted to be engaged by the tool inserted through the penetrable grommet to enable rotation of the setscrew body within the threaded bore to tighten the setscrew working end against or to loosen the setscrew working end from a lead connector element received in the connector block bore, and the socket head diameter inhibits advancement of the setscrew all of the way through the threaded bore. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
-
-
18. In an implantable medical device having a connector header adapted to be coupled through the use of a tool to an electrical lead connector element of an elongated electrical medical lead, wherein:
-
the connector header is formed of a header body having at least one header connector bore and a header grommet aperture having a grommet aperture sidewall;
a connector block is disposed within the connector header having a threaded bore having a spiral bore thread of a bore thread diameter aligned with the header grommet aperture and a connector block bore aligned with the header connector bore adapted to receive a lead connector element when a proximal connector assembly of the elongated electrical medical lead is received in the header connector bore;
a penetrable grommet formed of an elastomer material is disposed within the header grommet aperture; and
a setscrew having a setscrew socket in a setscrew body extending between a setscrew socket head and a setscrew working end is disposed between the penetrable grommet and the connector block, the setscrew body having a spiral setscrew thread mating with the spiral bore thread of the threaded bore, and the setscrew socket head having a socket head diameter exceeding the bore thread diameter, a method of stabilizing the setscrew in a retracted position comprising;
inserting a setscrew tool through the penetrable grommet into the setscrew socket;
rotating the setscrew tool to rotate the setscrew to a retracted position until the enlarged diameter setscrew socket end is retracted into frictional engagement with the penetrable grommet, whereby the frictional engagement stabilizes the setscrew in the retracted position and inhibits spontaneous migration of the setscrew body through the threaded bore into the connector block bore.
-
Specification