INSTRUMENT HOLDER

摘要

An instrument holder (50) is described for mounting a medical instrument (100) on a joint arm (10), comprising a body (52), a holder for holding the medical instrument (100) on the body (52), and a coupling element (64) for attaching the body (52) to the joint arm (10). The holder comprises a threaded shank (72) provided with an external thread (74), a receiving disc (56) and a locking element (58) provided with an internal thread (85). The receiving disc (56) has a through-hole (76), by means of which the receiving disc (56) can be put on the threaded shank (72) and is rotatable about the threaded shank (72), a second contact surface (86), which faces the first contact surface (66), when the receiving disc (56) is put on the threaded shank (72), and a receiving groove (78), which is formed on a side of the receiving disc (56) facing away from the second contact surface (86) for receiving a part (110, 112) of the medical instrument (100). The locking element (58) covers the receiving groove (78) at least partly, when the internal thread (85) of said locking element (85) engages with the external thread (74) of the threaded shank (72), whereby said part (110, 112) of the medical instrument (100) is held in the receiving groove (78) and can be tightened against the receiving disc (56) such that the two contact surfaces (66, 86) are force-locked relative to each other.

主权项

1. An instrument holder for mounting a medical instrument on a joint arm, comprising:
a body, a holder for holding the medical instrument on the body, and a coupling element for attaching the body to the joint arm, wherein the holder comprises: a threaded shank provided with an external thread, which extends from a first contact surface formed on the body, a receiving disc having a through-hole, by means of which the receiving disc can be put on the threaded shank and is rotatable about the threaded shank, a second contact surface, which faces the first contact surface, when the receiving disc is put on the threaded shank, and a receiving groove, which is formed on a side of the receiving disc facing away from the second contact surface for receiving a part of the medical instrument, and a locking element provided with an internal thread, wherein the locking element covers the receiving groove at least partly, when the internal thread of said locking element engages with the external thread of the threaded shank, whereby said part of the medical instrument is held in the receiving groove and can be tightened against the receiving disc such that the two contact surfaces are force-locked relative to each other.