An arthroscopic or other surgical cutter has features which facilitate fabrication by ceramic molding. The arthroscopic cutter includes a cutter body having a longitudinal axis and a window, an interior channel, and a plurality of cutting edges extending radially outwardly from an outer surface thereof. The features include non-helical, longitudinally aligned cutting edges, controlled thicknesses of the cutting edges, controlled heights of the cutting edges, controlled areas of the windows, controlled diameters of the internal channels, controlled rake angles of the cutting edges, and other parameters.

A device for fracturing calcifications in heart valves includes a stabilizer and an impactor movable towards each other. The impactor includes one or more impactor arms, each of which extends distally from a proximal cap. The impactor further includes one or more lever arms each of which is distally coupled to a lever cap and proximally coupled to a corresponding one of the one or more impactor arms. The lever cap slides on a shaft which extends towards the proximal cap. Proximal movement of the lever cap towards the proximal cap causes the one or more lever arms to deform and to push against the one or more impactor arms and to cause the one or more impactor arms to deform.

Systems for treating an aneurysm in a cerebral vessel and methods of use are described. In one embodiment, the system includes an elongate tubular member having a lumen, an expandable stent, and a delivery device. The expandable stent has a constrained state that is configured for delivery through the lumen of the elongate tubular member, and an expanded state configured for placement within the cerebral vessel adjacent the aneurysm. The delivery device includes an elongate member and a self-expandable portion. The proximal end of the self-expandable portion is coupled to the elongate member at or near the distal end of the elongate member. The self-expandable portion of the delivery device includes a tubular mesh structure having a constrained state and an expanded state. The stent is engaged (e.g., mechanical, frictional, or intermeshing) with the self-expandable portion of the delivery device.

A medical instrument and a semi-finished instrument. The semi-finished instrument includes an instrument body part blank for forming an instrument body part of the medical instrument. The instrument body part blank is made of a metal, in particular an instrument steel. The semi-finished instrument also includes a distal end region and a recess on the distal end region for accommodating a hard metal element. The recess has an abutment face for the hard metal element. The instrument body part blank includes a solder chamber for accommodating solder. The solder chamber is fluidically connected to the recess.

A hemostatic clip and an auxiliary system are disclosed. The hemostatic clip includes a first clip arm (110), a second clip arm (120), a tightening tube (140), a middle clip arm (150), an intermediate assembly (160), a traction assembly (170), a control handle (180) and at least two separators (190). The traction assembly (170) is connected to both the control handle (180) and the intermediate assembly (160), and the intermediate assembly (160) is connected to the tightening tube (140). Both the first clip arm (110) and the second clip arm (120) are proximally connected to the traction assembly (170). The middle clip arm (150) extends through the tightening tube (140) and is fixed proximally to the intermediate assembly (160). The first clip arm (110) and the second clip arm (120) are disposed on opposite sides of the middle clip arm (150). The first clip arm (110) makes up a first clip together with the middle clip arm (150), and the second clip arm (120) makes up a second clip together with the middle clip arm (150). The control handle (180) is configured to open or close the first clip and/or the second clip corresponding to the first clip arm (110) and/or second clip arm (120). The separators (190) are disposed in a lumen of the tightening tube (140) in such a manner that they are individually located between the first clip arm (110) and the middle clip arm (150) and between the second clip arm (120) and the middle clip arm (150), thus reducing the risk of device faults caused by interference of the first clip arm (110) and the second clip arm (120) with the middle clip arm (150).

A surgical instrument holder includes a carriage, a housing, and a drive assembly. The carriage is configured for engagement to a surgical robotic arm and for supporting an instrument drive unit. The housing extends from the carriage and defines a channel. The drive assembly includes a pulley, a belt, and an annular member. The pulley is rotatably disposed within the housing and in operable engagement with a motor of the carriage such that actuation of the motor rotates the pulley. The belt is rotatably disposed within the housing and in operable engagement with the pulley such that rotation of the pulley effects rotation of the belt. The annular member is disposed within the channel of the housing and configured for non-rotatable receipt of an instrument drive unit. The annular member is in operable engagement with the belt such that rotation of the belt effects rotation of the annular member.

The present invention is an embolization coil having an optimum morphological stability. The embolization coil includes a wire material made of an Au—Pt alloy. The wire material constituting the embolization coil has such a composition that a Pt concentration is 24 mass % or more and less than 34 mass %, with the balance being Au. The wire material has such a material structure that a Pt-rich phase of an Au—Pt alloy having a Pt concentration of 1.2 to 3.8 times a Pt concentration of an α phase is distributed in an α phase matrix. The wire material has a bulk susceptibility of −13 ppm or more and −5 ppm or less. In a material structure of a transverse cross-section of the wire material, an average value of two or more average crystal particle diameters measured by a linear intercept method is 0.20 μm or more and 0.35 μm or less.

An apparatus and method for inserting prosthesis implants into a patient pocket. The apparatus has three openings including a prosthesis opening and two implant insertion openings. The apparatus prevents infection; eases insertion and placement; and reduces complications. In use, the first implant insertion end of the bellow is placed through the patient incision while allowing the bellow to be manipulated to force the first implant into a surgical pocket of a patient. Then the bellow is rotated 180 degrees so that the second implant insertion end becomes the opening through which the second implant is inserted into the second incision while allowing the bellow to be manipulated to force the second implant into a surgical pocket.

The invention relates to a flexible catheter (1) with a drive shaft (2), with a sleeve (6) surrounding the drive shaft (2) and with a sheath (7) surrounding the drive shaft (2) and the sleeve (6), wherein the drive shaft, the sleeve (6) and the sheath (7) are pliable, wherein the drive shaft (2) at a proximal end of the drive shaft (2) comprises a coupling element (5) for connecting the drive shaft (2) to a drive motor (18), wherein the drive shaft (2) at least regionally consist of a alloy which contains at least 10% by weight of chromium, nickel and cobalt in each case. The invention moreover relates to a blood pump arrangement with such a catheter.

Implants for prevention of cold welding, corrosion and tissue overgrowth on surfaces between medical implant components include a first medical implant component having a first implant contact surface, a second medical implant component having a second implant contact surface positionally interfacing with the first implant contact surface of the first medical implant and a separation coating material on at least one of the first implant contact surface and the second implant contact surface. Methods for prevention of cold welding and/or corrosion between and/or tissue/bone overgrowth on implant components and methods of sealing an interface between a first implant component and a second implant component in a prosthesis system are also disclosed.