Abstract: The invention relates to the recording of an object (4) by imaging with a radiation source (2) on a recording medium (3) using aperture (6), the size of which may be adjusted using adjusting means (7), depending on the size of said object. Sensors (8) are provided for determination of object size. The quality of the images, which are in particular X-ray images, can thus be improved.

Abstract: A medical cleaning device for cavities of bones is provided in the form of a handheld device and includes a gas reservoir. From this reservoir a first gas stream is taken that is used to propel a cleaning liquid towards an outlet of the device. A second gas stream is taken from the gas of the reservoir and is passed to a mixer wherein the propelled liquid is enriched with gas from the second gas stream before reaching the outlet.

Abstract: In order to provide an improved X-ray imaging quality an X-ray detector (14) is equipped with means (13, 15) for orienting it towards an X-ray source (2) during a scan (8a, 8b, 27). Means (9, 10, z) for reorienting a housing (10) comprising the X-ray detector (14) and a conventional cassette holder (4) and detector positioning means (9-12) cooperate to receive an X-ray beam (26a) with improved collimation quality. Thus the detection efficiency is increased, the image resolution is enhanced, and the beam exposure of patients (5) can be minimized. Embodiments relate to a linear X-ray detector (14) designed for a serial readout of image pixels, a collimator (3, 3a, 3b) for both scanning and wide-perture X-ray imaging, and a supporting arm (9) carrying the X-ray source (2), collimator (3) and detector arrangement (17).

Abstract: The invention relates to the recording of an object (4) by imaging with a radiation source (2) on a recording medium (3) using aperture (6), the size of which may be adjusted using adjusting means (7), depending on the size of said object. Sensors (8) are provided for determination of object size. The quality of the images, which are in particular X-ray images, can thus be improved.

Abstract: The rasp (1) has a support unit (3), which is surrounded by an envelope (4) of metal, which forms rasp teeth (5). This mode of construction permits the use of very thin sheet for envelope (4) and cost-favorable plastic for support unit (3), which makes possible the formation of a stable, well-cutting, disposable rasp.

Abstract: The modular hip prosthesis has an axial stem forming its distal part. Two modular proximal parts can be mounted on the stem from its proximal end and be rigidly connected thereto.Because the prosthesis has two modular parts at its proximal end, it can be optimally adapted to match the bone geometry intraoperatively. The diameter of the prosthesis in its proximal part and the position of the hip joint can be defined independently. Due to its slim shape and a drain for medullary material, the stem can directly be driven into the bone and does not require a pre-drilled cavity.

Abstract: A bone rasp for the working of bones said rasp having a plastic toothed working section with teeth and cutting edges and a connecting section, optionally made of plastic, for connecting the rasp to an impact tool. This rasp can be manufactured inexpensively, making possible one-time use and thereby making cleaning and sterilization of the used rasp unnecessary.

Abstract: A combination of bone-fixing elements comprising an intramedullary nail having an aperture therein and a cooperating locking bolt, the locking bolt having a shank for extending into the aperture in the intramedullary nail, the locking bolt comprising a pin for enlarging a diameter of at least a part of the shank when the shank is present in the aperture, or the nail and the bolt comprising surfaces for preventing rotation of the bolt in the nail, in either case thereby to lock the bolt in the intramedullary nail and to lock the intramedullary nail in place in a bone when located therein.