Abstract: A patient-supporting device is disclosed. The patient-supporting device includes a fastening assembly that fastens the patient-supporting device to a structural member, a support member configured to receive a body part of a patient, and a height adjustment assembly that adjusts a distance between the fastening assembly and the support member. The height adjustment assembly includes a locking assembly and an elongated member. The support member is attached to a first end portion of the elongated member. The locking assembly is stationary relative to the fastening assembly. The elongated member is guided in an aperture of the locking assembly in a longitudinal direction of the elongated member. A plurality of first snap-in recesses is disposed on a first side portion of the elongated member. The locking assembly includes a first locking member.

Abstract: A medical holding arm, comprising at least one joint with two joint bodies which are rotatable relative to each other about a rotational axis (D), wherein a first of the joint bodies has a plurality of locking pins and a second of the joint bodies has a plurality of locking recesses, the number of locking pins differs from the number of locking recesses, the locking pins each have an axially tapered engagement part, the locking recesses are respectively formed axially tapered to selectively receive each of the engagement parts for locking the joint, and when the joint is locked, at least one of the locking pins is received with its tapered engagement part completely in one of the tapered locking recesses, while at least one of the other locking pins is received with its tapered engagement part only partially in one of the other tapered locking recesses.

Abstract: An instrument holder is described 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. The holder comprises a threaded shank provided with an external thread, a receiving disc and a locking element provided with an internal thread. The receiving disc has a through-hole, by which the receiving disc can be put on the threaded shank and is rotatable about the threaded shank.

Abstract: A patient-supporting device is disclosed. The patient-supporting device includes a fastening assembly that fastens the patient-supporting device to a structural member, a support member configured to receive a body part of a patient, and a height adjustment assembly that adjusts a distance between the fastening assembly and the support member. The height adjustment assembly includes a locking assembly and an elongated member. The support member is attached to a first end portion of the elongated member. The locking assembly is stationary relative to the fastening assembly. The elongated member is guided in an aperture of the locking assembly in a longitudinal direction of the elongated member. A plurality of first snap-in recesses is disposed on a first side portion of the elongated member. The locking assembly includes a first locking member.

Abstract: A medical holding arm is described, comprising at least one joint (24, 26, 28, 30, 32) with two joint bodies (40, 42) which are rotatable relative to each other about a rotational axis (D), wherein a first of the joint bodies (40) has a plurality of locking pins (46) and a second of the joint bodies (42) has a plurality of locking recesses (48), the number of locking pins (46) differs from the number of locking recesses (48), the locking pins (46) each have an axially tapered engagement part (66), the locking recesses (48) are respectively formed axially tapered to selectively receive each of the engagement parts (66) for locking the joint (24, 26, 28, 30, 32), and when the joint (24, 26, 28, 30, 32) is locked, at least one of the locking pins (46) is received with its tapered engagement part (66) completely in one of the tapered locking recesses (48), while at least one of the other locking pins (46) is received with its tapered engagement part (66) only partially in one of the other tapered locking recesses

Abstract: 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).

Abstract: When decoding an OFDM signal, frame and frequency synchronisation is necessary. The invention shows a method enabling a high accuracy for frame and frequency synchronization, which leads to a very low error rate in comparison to prior art.

Abstract: When decoding an OFDM signal, frame and frequency synchronisation is necessary. The invention shows a method enabling a high accuracy for frame and frequency synchronization, which leads to a very low error rate in comparison to prior art.

Abstract: A process is suggested for checking the catalyst performance in internal-combustion engines, in which by means of detected operating parameters of the internal-combustion engine similar operating conditions are determined. It is suggested to compute from a defined number of measured exhaust gas values during a similar operating condition a statistically backed average exhaust gas value and compare it with a permissible exhaust gas value stored for this operating condition, so that a defective catalyst is recognized in the event of a deviation of the actually determined exhaust gas value from the permissible exhaust gas value.