Patent ID: 11904110
Assignee: KONINKLIJKE PHILIPS N.V.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 14:
15. The device of claim 14, further comprising:
a first axle connecting the first friction wheel and second friction wheel;
a second axle connecting the third friction wheel and fourth friction wheel;
a first bearing disposed in contact with the first axle at a side of the first axle which is opposite the first linear rod, wherein the first bearing applies a first force to the first and second friction wheels to push the first and second friction wheels against the first linear rod; and
a second bearing disposed in contact with the second axle at a side of the second axle which is opposite the second linear rod, wherein the second bearing applies a second force to the third and fourth friction wheels to push the third and fourth friction wheels against the second linear rod.