Implantable medical device with locking datum arrangement between DF4/IS4 assembly and header

1. An implantable electronic device comprising:

a housing; and

a header connector assembly coupled to the housing, the header connector assembly including a header defining a bore and a DF4/IS4 assembly disposed within the bore,

wherein:

the DF4/IS4 assembly comprises a first portion of a locking datum arrangement,

the header further defines a second portion of the locking datum arrangement disposed along the bore and configured to interface with the first portion of the locking datum arrangement, and

the DF4/IS4 assembly is locked within the bore via the interface between the first portion of the locking datum arrangement and the second portion of the locking datum arrangement.

2. The implantable electronic device of claim 1 , wherein the locking datum arrangement is a push and twist locking datum arrangement.

3. The implantable electronic device of claim 1 , wherein the DF4/IS4 assembly includes a strain relief and the first portion of the locking datum arrangement is disposed on the strain relief.

4. The implantable electronic device of claim 1 , wherein:

the first portion of the locking datum arrangement includes a male portion disposed on the DF4/IS4 assembly,

the second portion of the locking datum arrangement includes a female portion extending radially outward from the bore into the header, and

the male portion is retained within the female portion when the DF4/IS4 assembly is locked within the bore via the interface between the first portion of the locking datum arrangement and the second portion of the locking datum arrangement.

5. The implantable electronic device of claim 1 , wherein:

the first portion of the locking datum arrangement includes a female portion on the DF4/IS4 assembly,

the second portion of the locking datum arrangement includes a male portion extending radially inward from the header into the bore, and

the male portion is retained within the female portion when the DF4/IS4 assembly is locked within the bore via the interface between the first portion of the locking datum arrangement and the second portion of the locking datum arrangement.

6. The implantable electronic device of claim 1 , wherein:

the first portion of the locking datum arrangement includes a key radially extending from the DF4/IS4 assembly,

the second portion of the locking datum arrangement includes a datum notch radially extending from the bore into the header, and

the key is received within the datum notch when the DF4/IS4 assembly is locked within the bore via the interface between the first portion of the locking datum arrangement and the second portion of the locking datum arrangement.

7. The implantable electronic device of claim 6 , wherein the bore includes a groove that extends proximally from a distal opening of the bore, the groove being sized and shaped to receive the key as the DF4/IS4 is inserted into the bore.

8. The implantable electronic device of claim 7 , wherein the datum notch extends from the groove such that the DF4/IS4 assembly can be rotated to cause the key to exit the groove and enter the datum notch.

9. The implantable electronic device of claim 8 , wherein a distal face of the key makes abutting contact with a distal datum wall of the datum notch when the DF4/IS4 assembly is locked within the bore via the locking datum arrangement.

10. The implantable electronic device of claim 1 , further comprising an implantable lead including a DF4/IS4 connector end receivable within a receptacle defined by at least a portion of the DF4/IS4 assembly.

11. The implantable electronic device of claim 1 , wherein the implantable electronic device is an implantable pulse generator.