A transport system for delivery or retrieval of a biostimulator, such as a leadless cardiac pacemaker, is described. The biostimulator transport system includes a docking cap supported by a bearing within a bearing housing. The bearing allows relative rotation between a torque shaft connected to the docking cap and an outer catheter connected to the bearing housing. The bearing housing and the docking cap include respective bearing retainers that constrain the bearing within the bearing housing without a weld attachment. The weldless retainers of the biostimulator transport system provide a robust mechanical securement of the bearing that is not vulnerable to corrosion. Other embodiments are also described and claimed.

An instrument for establishing orientation of a pelvic prosthesis comprises a hub, a first arm attached to and extending from the hub, and a second arm attached to and extending from the hub. The first and second arms define a nominal plane of the apparatus, and may extend from the hub at an angle relative to each other. Distances between the first and second legs and between the first and third legs are adjustable. The first, second, and third legs have tips, and the tips of the first, second, and third legs define a plane having a predefined geometric relationship to the nominal plane of the apparatus.

One or more embodiments of the present disclosure are directed to a transmission mechanism. The transmission mechanism may include a guiding rail, and a slider movably disposed on the guiding rail, wherein the slider may be provided with a rolling part, the rolling part may roll with respect to the guiding rail, and limit the slider in a first direction and a second direction of the guiding rail, and the first direction and the second direction may both be perpendicular to a length direction of the guiding rail, and an angle between the first direction and the second direction may be greater than 0° and less than 180°.

A hinge has a hinge body forming an articulating section extending between a first end and a second end of the hinge. The articulating section is adapted to bend from a neutral axis when the first and second ends are parallel to an angular range in which the first end is arranged among a plurality of angles within the angular range relative to the second end. The hinge body may define a receptacle along the articulating section, and an insert may be provided for insertion into the receptacle. The insert can modify the stiffness of the hinge in the angular range and is arranged parallel to the neutral axis.

An exemplary embodiment relates to a bearing assembly (40) for a swash plate (14) in a steering gear component (33), wherein the swash plate (14) is arranged such that it can rotate about an axis of rotation (10) in a radial bearing which is located in a receiving opening (330) of the steering gear component (33). The radial bearing is a sliding bearing (35) and the bearing assembly (40) has at least one axial securing device (36) which is arranged axially adjacent to a first side of the swash plate (14) and engages with the steering gear component (33). Furthermore, a surgical instrument (1) is disclosed that has this bearing assembly (40) of a swash plate (14) in a steering gear component (33).

A hinge has a hinge body forming an articulating section extending between a first end and a second end of the hinge. The articulating section is adapted to bend from a neutral axis when the first and second ends are parallel to an angular range in which the first end is arranged among a plurality of angles within the angular range relative to the second end. The hinge body may define a receptacle along the articulating section, and an insert may be provided for insertion into the receptacle. The insert can modify the stiffness of the hinge in the angular range and is arranged parallel to the neutral axis.

A transport system for delivery or retrieval of a biostimulator, such as a leadless cardiac pacemaker, is described. The biostimulator transport system includes a docking cap supported by a bearing within a bearing housing. The bearing allows relative rotation between a torque shaft connected to the docking cap and an outer catheter connected to the bearing housing. The bearing housing and the docking cap include respective bearing retainers that constrain the bearing within the bearing housing without a weld attachment. The weldless retainers of the biostimulator transport system provide a robust mechanical securement of the bearing that is not vulnerable to corrosion. Other embodiments are also described and claimed.

A drive shaft (1, 3) for use with a rotation device (10, 20) includes an outer layer (11, 31) and an inner layer (12, 32). The outer layer is a tubular structure, and the inner layer is accommodated in a space defined by the outer layer and defines a central lumen (13, 33) for receiving therein an external mechanism. The outer layer is rotatable about the central lumen, and the inner layer is rollable relative to both the outer layer and the external mechanism and thus allows rolling friction to occur between the drive shaft and the external mechanism. Such a structure of the drive shaft can reduce friction between the drive shaft and a guidewire as well as loss due to such friction, avoiding failure of the guidewire due to excessive friction between the guidewire and the drive shaft. Therefore, it is ensured that the drive shaft is suitable for use with guidewires commonly used in clinical practice, resulting in improved surgical operability and lower surgical cost. Also disclosed is a rotation device including an instrument (2, 4) and the drive shaft. The instrument is disposed at one end of the drive shaft and is coupled to the outer layer of the drive shaft so as to be able to be driven by the outer layer to rotate.

A double-row rolling-element bearing unit of a medical pump, preferably syringe pump, has a bearing core forming a first inner running surface for first rolling elements, which first inner running surface faces in an axial direction, and forms a second inner running surface for second rolling elements, which second inner running surface is arranged oppositely to the first inner running surface in the axial direction. The pump has a bearing bush, which can be mounted on a housing portion and forms a first outer running surface, which lies opposite the first inner running surface, and the pump has a bearing pan, which forms a second outer running surface, which lies opposite the second inner running surface. At least one preloading element couples the bearing pan to the bearing bush with a defined preload to join the double-row rolling-element bearing unit as a unit.

In the rotation mechanism for an X-ray inspection apparatus, a plurality of adjustment members configured to adjust the shape of an outer race of a bearing by deforming the outer race are arranged in a circumferential direction of the bearing. The adjustment members are movable relative to an adjustment member holder in a diameter direction of the bearing and contactable with an outer circumferential surface of the outer race. A gap S configured to allow deformation of the outer race is formed between the outer circumferential surface of the outer race and the adjustment member holder in the diameter direction of the bearing.