Abstract: A protective body for insertion into a body cavity of a human or animal body for the protection of tissue and/or organs that are not to be irradiated when carrying out radiation therapy, wherein the protective body (1) includes at least one absorber body (2) designed to absorb radiation and having at least one curved surface (3) that delimits the absorber body, and the absorber body (2) has a density at 20° C. of at least 5 gram per cubic centimeter, preferably of at least 10 gram per cubic centimeter.

Abstract: An apparatus and method for positioning a guide tube fixation device at a spinal structure of a patient are provided. The method includes attaching an attachment element to the spinal structure, attaching a guide tube to the attachment element, wherein said guide tube is calibrated prior to attachment, and navigating a part of the guide tube to a predetermined location relative to a target region of the patient. The apparatus includes an attachment device for attaching to the spinal structure, a joint attached to the attachment device, and a guide tube holding device attached to the joint and operable to hold and/or guide a guide tube, said guide tube configured to guide a cannula, needle and/or fluid to a desired site or location.

Abstract: A protective body for insertion into a body cavity of a human or animal body for the protection of tissue and/or organs that are not to be irradiated when carrying out radiation therapy, wherein the protective body (1) includes at least one absorber body (2) designed to absorb radiation and having at least one curved surface (3) that delimits the absorber body, and the absorber body (2) has a density at 20° C. of at least 5 gram per cubic centimetre, preferably of at least 10 gram per cubic centimeter.

Abstract: A radiolucent fastening device for fastening a reference device to a body for computer-assisted surgery, wherein a part of the fastening device is made from an unsubstituted carbon fiber reinforced polyether compound, a monosubstituted carbon fiber reinforced polyether compound or a multisubstituted carbon fiber reinforced polyether compound.

Abstract: The invention relates to a medical instrument, comprising a signal transmitter and at least one activating device for activating the transmitter which is provided on a transmitter unit which is separate from the instrument, wherein the transmitter unit is a unit which can be fastened to the exterior of the instrument. It also relates to a method for controlling a treatment-assisting medical software by means of a signal transmitter which is arranged on a medical instrument, wherein the instrument is positionally detected by means of a medical tracking system, and wherein the software assigns a different significance to the signal output by the transmitter depending on the position of the instrument.

Abstract: The invention relates to a control system for a surgical navigation system, wherein the navigation system is associated with a detection unit for detecting system control inputs made by a user, and wherein the navigation system is controlled in accordance with the control inputs and the detection unit comprises a gesture detection for detecting user gestures. The invention also relates to a method for controlling a surgical navigation system, wherein a detection unit for detecting system control inputs made by a user is associated with the surgical navigation system, the navigation system is controlled in accordance with the control inputs, and user gestures are used as said control inputs.

Abstract: The invention relates to a medical instrument, comprising a signal transmitter and at least one activating device for activating the transmitter which is provided on a transmitter unit which is separate from the instrument, wherein the transmitter unit is a unit which can be fastened to the exterior of the instrument. It also relates to a method for controlling a treatment-assisting medical software by means of a signal transmitter which is arranged on a medical instrument, wherein the instrument is positionally detected by means of a medical tracking system, and wherein the software assigns a different significance to the signal output by the transmitter depending on the position of the instrument.

Abstract: The invention relates to a method for visually assisting the alignment of a medical instrument, wherein the instrument is visually displayed on an image output in a positional relationship to a part of a patient's body by means of a medical navigation system, wherein an orientation aid is displayed as a virtual model shape at the instrument or in a particular positioning with respect to a characteristic part of the instrument. It also relates to a planning method for optimized instrument alignment with the aid of such an image assisting method.

Abstract: A radiolucent fastening device for fastening a reference device to a body for computer-assisted surgery, wherein a part of the fastening device is made from an unsubstituted carbon fiber reinforced polyether compound, a monosubstituted carbon fiber reinforced polyether compound or a multisubstituted carbon fiber reinforced polyether compound.

Abstract: An apparatus and method for positioning a guide tube fixation device at a spinal structure of a patient are provided. The method includes attaching an attachment element to the spinal structure, attaching a guide tube to the attachment element, wherein said guide tube is calibrated prior to attachment, and navigating a part of the guide tube to a predetermined location relative to a target region of the patient. The apparatus includes an attachment device for attaching to the spinal structure, a joint attached to the attachment device, and a guide tube holding device attached to the joint and operable to hold and/or guide a guide tube, said guide tube configured to guide a cannula, needle and/or fluid to a desired site or location.

Abstract: The invention relates to the use of polyolefin waxes as processing aids and/or dispersing agents in polycondensates, wherein the polyolefin waxes have been prepared with the aid of metallocene catalysts.

Abstract: The invention relates to expandable polystyrene (EPS) comprising polyolefin waxes, wherein the latter have been prepared by means of metallocene catalysts and have a drop melting point or ring/ball softening point of from 80 to 165° C. and a melt viscosity measured at a temperature which is 10° C. above the drop melting point or softening point of from 20 to 10 000 mPa·s.

Abstract: The invention relates to mixtures of phosphonite (component A) and/or an ester and/or salt of a long-chain fatty acid (component B), and/or a carboxylic ester, and/or carboxylic amide (component C), and also to their use in polyamides or in polyesters.

Abstract: The invention relates to an instrument for use in computer guided surgery. The instrument includes a shaft and a reference element adapter, wherein the reference element adapter is directly couplable to the shaft and rotatable about the shaft. A selectively operable mechanical retainer provides retention of the reference element adapter to an instrument shaft adapting interface of the instrument shaft. The instrument also includes a reference element orientating mechanism arranged at an interface between the instrument shaft adapting interface and the reference element adaptor. The reference element orienting mechanism is capable of fixing at least one angular position of the reference element. The instrument also includes a grip piece interface on the instrument shaft, and a grip piece is selectively couplable to the grip piece interface.

Abstract: A method for the production of polycondensates. The method is characterized in that waxes and polymer additives are used as lubricating and separating agents during the production of the polycondensate.

Abstract: The invention relates to blends of waxes (component A) and polymer additives (component H) and to the use thereof.

Abstract: A second reaction medium is introduced into a first reaction medium flowing in a flow channel and the reaction media are intensively mixed. The second reaction medium (which may be one or more reaction media) is introduced at a plurality or even a multiplicity of positions that are distributed over a cross section of the flow channel. Turbulence flow is induced in the first reaction medium (which may also be one or more reaction media) at the positions where the second reaction medium is introduced. As a result, the intense mixing of the reaction media with one another takes place directly at the locations where the second reaction medium is introduced into the flow channel.

Abstract: The invention relates to mixtures of phosphonite (component A) and/or an ester and/or salt of a long-chain fatty acid (component B), and/or a carboxylic ester, and/or carboxylic amide (component C), and also to their use in polyamides or in polyesters.