Abstract: The present application relates to a double blade for a surgical retractor having a base body with a substantially cylindrical mounting mandrel for mounting the double blade on a surgical retractor, and at least two blade elements that are so mounted on the base body as to be rotatable and/or displaceable through at least a certain angular range with respect to the base body. Moreover, the present application relates to a blade arrangement in which a double blade is connected to a connecting element of a further double blade, or a single blade. In this case, the at least one double blade or, optionally, the single blade is rotatable with respect to the connecting element. In addition, the application relates to a retractor with a double blade, a blade arrangement or a blade assembly comprising double blades and a blade arrangement.

Abstract: The invention relates to a medical instrumentation with a navigation system which comprises an optical detection unit comprising a camera, and a data processing unit coupled to the detection unit, with a stabilization element of a surgical fixation system and with a medical marking device which is held in a defined spatial arrangement on or is comprised by or formed by the stabilization element, the location and orientation of the marking device in space being determinable with the navigation system, it being possible for at least two images of the stabilization element and the marking device to be taken from a different orientation by means of the detection unit and for the shape of the stabilization element to be determined by the data processing unit on the basis of the two or more images. The invention also relates to a method for determining the shape of a surgical stabilization element.

Abstract: Surgical tissue fusion instrument having two gripping structures which are movable relative to each other, are designed for gripping and bringing together biological tissue sections, and are assigned heat-generating means designed in such a way that tissue fusion takes place between the biological tissue sections by heat being supplied in the area of the gripping structures. At least one gripping structure is assigned a fluid-conducting system, which is designed to supply at least one liquid or flowable additive to the tissue sections during a tissue fusion process.

Abstract: A surgical system for connecting body tissue is provided. The surgical system includes a surgical instrument having two tool elements movable relative to each other, each of which comprises a high-frequency electrode. The high-frequency electrodes, in an approach position of the tool elements, define a minimum distance from each other, lying opposite each other and facing each other. The instrument has a shaft at the distal end of which at least a first one of the tool elements is arranged or formed. A second tool element is movable from an operating position, in which it is adapted for movement into the approach position, into a removal position and/or vice versa. A surface area of a perpendicular projection of the second tool element onto a projection plane extending perpendicularly to a shaft direction in a region of the second tool element is smaller in the removal position than in the operating position.

Abstract: A surgical tool of a surgical torque-transferring instrument includes a distal engagement segment or tool head which is adjoined by a tool shaft whose proximal end portion is prepared for a torque-transferring insertion into a tool mounting of the instrument. The proximal end portion is subdivided at least in a functional section for torque transmission and a functional section for axial locking which is axially spaced from the functional section for torque transmission. The functional section for axial locking, with respect to its geometry, includes parameters which are intended to be changed and cooperate according to the key/keyhole principle only with one tool mounting including corresponding geometrical mating parameters for a correct mounting of the tool.

Abstract: A bone screw includes a receiving sleeve having a sleeve wall which forms a seat for a longitudinal support for the surgical connection of adjacent bone screws. The bone screw includes an internal thread. A thread turn of the internal thread has a widened lead-in region on the thread lead-in side.

Abstract: A medical product which contains a mechanophore, and the use of a mechanophore for producing a medical product.

Abstract: A bone replacement material having reinforcing elements and a modelable mass which is curable on contact with water or an aqueous liquid. as well as a process for producing a bone replacement material, to a further bone replacement material and to medical kits for treatment of bone defects.

Abstract: A medical device in the form of a nonwoven wound dressing includes rotospun fibers including at least one synthetic and bioabsorbable polymer and at least one hydrophilic and/or tissue-adhesive polymer, and a method of producing the medical device including using rotospinning to produce fibers from a fiber raw material including at least one synthetic and bioabsorbable polymer and at least one hydrophilic and/or tissue-adhesive polymer.

Abstract: A method for connecting a graft vessel to a target vessel may involve advancing a guidewire of a surgical stapler into the target vessel through an opening at a first location on the target vessel, coupling a stapler cartridge carrying the graft vessel with an anvil of the surgical stapler, activating the anvil to staple the graft vessel to the target vessel at a second location on the target vessel, removing the guidewire from the target vessel, and closing the opening in the target vessel.

Abstract: An instrument for guiding a rod into a receiving area of an implant includes a coupling unit for coupling the instrument to the implant, a rod provided with an outer thread that can be positioned axially relative to the coupling unit, and at least one inner threaded segment arranged in an axially fixed manner relative to the coupling unit that can be brought into engagement or out of engagement with the outer thread of the threaded rod. The threaded rod has a stop, and the instrument has a locking element which is arranged in an axially fixed manner relative to the coupling unit for interacting with the stop. The locking element can be positioned in a radial direction relative to the threaded rod and is pretensioned in the direction of the threaded rod to engage with the stop by a pretensioning element which applies a radial force.

Abstract: A tool fitting attachment for a surgical drill can include a drive-side coupling for mounting on a drive unit which provides a torque via a motor, and an output-side coupling for receiving a tool. A drive unit is integrated between the two couplings and can be manually operated. A surgical drill can include an electric motor which is connected via the drive-side coupling of the tool fitting attachment.

Abstract: An instrument for bending a surgical implant about a bending axis includes a handle defining a receiving area for receiving the surgical implant. A lever is pivotably connected to the handle about a pivot axis that can be orthogonal to the bending axis. A movable linkage can be connected to the lever for movement with the lever. The moveable linkage can be configured to bend the surgical implant about the bending axis upon pivoting the lever about the pivot axis.

Abstract: The invention relates to a medical instrumentation, comprising a hand-held, integrated, medical navigation system which comprises an optical detection unit having a camera, a data processing unit and an optical display unit, the data processing unit being coupled to the detection unit and the display unit, it being possible for location and/or orientation data of a medical marking device which is detectable with the detection unit to be processed by the data processing unit and information relating thereto to be represented on the display unit, the instrumentation comprising an illumination unit with which light is emittable in the direction of the marking device detectable with the detection unit.

Abstract: The invention relates to a medical instrumentarium, in particular for implanting a hip joint stem, comprising a rasp instrument with a rasp shank defining a longitudinal axis, which rasp shank has an anterior side face, a posterior side face, a medial side face, and a lateral side face, wherein the side faces at least partially have rasp teeth which are formed running parallel to each other and circumferential or at least partially circumferential with respect to the longitudinal axis, wherein the rasp instrument comprises a rotational stabilization device for increasing a rotational stability of the rasp shank driven into a bone cavity, in particular a femur cavity.

Abstract: A medical instrument provisionally fastens a polyaxial pedicle screw having a threaded shank. The shank has a shank head, on which a holding sleeve is arranged. A clamping plunger is mounted in the holding sleeve such that the clamping plunger acts on the shank head, such that the holding sleeve can be positionally fixed on the shank head by relative loading of the holding sleeve and the clamping plunger. The instrument has a coupling unit for engaging the holding sleeve and a pressure tappet for applying force to the clamping plunger. The coupling unit and the pressure tappet can be moved relative to each other. The instrument has a sleeve, in which the coupling unit is arranged such that the coupling unit can be moved in the axial direction, decoupled from the holding sleeve in a first position, and fastened to the holding sleeve in a second position.

Abstract: A gas-permeable filter system for a sterile container includes a filter element and a seal portion that sealingly surrounds a gas exchange opening provided in a sterile container wall section in such a manner that the seal portion rests against the sterile container wall section so that a sterile flow path is formed through the gas exchange opening and the filter element. A temperature-sensitive adjusting section releases at least the seal portion from the sterile container wall section when a specified temperature is reached or exceeded such that a non-sterile flow path is formed which allows fluid to be supplied or discharged via the gas exchange opening while bypassing the filter element. The sterile container includes a base and walls that define a receiving space. The sterile container also includes a cover for closing the receiving space. At least one filter system is preferably secured to the sterile container base.

Abstract: A method of controlling an electrosurgical HF apparatus, as well as an HF apparatus, includes an electrosurgical instrument and an HF generator for generating an HF current. The HF generator is in a locked state in which its activation is not possible. An application to be carried out is to be selected prior to a user-side activation of the HF generator, whereby the HF generator is unlocked.

Abstract: The present invention relates to a knee joint endoprosthesis having a tibial component and a femoral component and a hinge joint for coupling the tibial component and the femoral component so as to be pivotal about a rotational axis, which hinge joint comprises a first joint element and a second joint element coupled therewith so as to be rotatable about the rotational axis, wherein a connecting device is provided having at least one first connecting element and at least one second connecting element for connecting the first joint element to the femoral component, which connecting device defines a connecting position, in which the at least one first connecting element and the at least one second connecting element are engaged in a at least one of non-positive- and positive-locking manner, and an assembly position, in which the first joint element and the femoral component are fully separated from each other.

Abstract: The invention relates to a medical system, in particular for implanting a knee joint endoprosthesis, which comprises at least one medical referencing unit whose position in space is detectable using a surgical navigation system. The referencing unit comprises at least one surgical marker element that is arranged or formed on a carrier element and is detectable using a detection device of the surgical navigation system. The at least one referencing unit comprises a base body that carries the carrier element. The base body comprises at least one patient-specific bone contact face faces away from the base body and deviates from being a sector of a surface of a sphere and from being a planar surface. The at least one bone contact face is formed in a manner corresponding to a bone surface of the patient.