Abstract: Bone plate (1) with a lower surface (2), an upper surface (3), a maximum thickness measured between the lower and upper surfaces a left lateral surface (4), a right lateral surface (5), a longitudinal axis (6) and a plurality of plate holes (7) miming from the lower surface to the upper surface, the bone plate further having a slot (8) in the lower surface extending from the left lateral surface to the right lateral surface having a width measured in a plane parallel to the longitudinal axis and a central plane (16) between the lateral surfaces, wherein (i) the hollow space defined by the slot extends in the form of a straight cylinder from the left lateral surface to the right lateral surface and (ii) the slot comprises an undercut feature (9) limiting the opening of the slot when the bone plate is bent longitudinally in a direction aimed at widening the slot.

Abstract: Reference device (1) for real-time tracking of bone and/or surgical objects in computer-assisted surgery, the device (1) comprising: A) an upper member (2) having at least one circular cylindrical hole (3) penetrating through the upper member (2) from the upper surface (5) to the lower surface (6), wherein the hole (3) defines a circular cylindrical reference element (15) having a diameter d and a height h, the ratio between the diameter d and the height h of the reference element (15) is minimum ?, and B) a lower member (4) configured to cover the lower orifices (8) of the holes (3); and wherein C) the upper member (2) is configured as a plate shaped body.

Abstract: A device (25) for drilling holes in bone and configured to determine bone screw length, the device (25) including a surgical power drill (2) comprising: a) a housing (12) and; b) a measuring device (1) releasably attached or fixed to the housing (12), wherein the measuring device (1) is configured to measure the distance (x) covered by the housing (12) in the direction of the longitudinal axis (7) and relative to a surface of an implant (26) or a bone during a drilling process, wherein the measuring device (1) comprises a processing unit (14) to record the distance (x) covered with respect to time; the processing unit (14) comprises one or more differentiators to determine at least the first and second derivatives of the distance (x) covered with respect to time; and the processing unit (14) further comprises a peak detector to analyze one or more peaks occurring in the graph of the highest derivative with respect to time, and wherein the measuring device (1) comprises a laser device or an ultrasound position

Abstract: A device (25) for drilling holes in bone and configured to determine bone screw length, the device (25) including a surgical power drill (2) comprising: a) a housing (12) and; b) a measuring device (1) releasably attached or fixed to the housing (12), wherein the measuring device (1) is configured to measure the distance (x) covered by the housing (12) in the direction of the longitudinal axis (7) and relative to a surface of an implant (26) or a bone during a drilling process, wherein the measuring device (1) comprises a processing unit (14) to record the distance (x) covered with respect to time; the processing unit (14) comprises one or more differentiators to determine at least the first and second derivatives of the distance (x) covered with respect to time; and the processing unit (14) further comprises a peak detector to analyze one or more peaks occurring in the graph of the highest derivative with respect to time, and wherein the measuring device (1) comprises a laser device or an ultrasound position

Abstract: A surgical instrument (25), in particular a surgical cutting or drilling instrument, the surgical instrument (25) comprising: a drive unit; a cutting tool or drill bit (5) engageable with the drive unit; a measuring device (1) which is configured to measure the distance [x(t)] covered by the cutting tool or drill bit (5) along a cutting or drilling path with respect to time and relative to a reference position; a processing un and a digital data storage, wherein in the digital data storage reference data are stored which include at least N one data set specifying a reference graph GRef within a time window (11) in the range of a transition and defining a reference point of a transition (21?), wherein the time window (11) includes a first time period before the reference point of a transition (21?) and a second time period after the reference point of a transition (21?) and wherein the processing unit (14) suitably programmed to compare the recorded graph G with the at least one reference graph GRef and to fin

Abstract: A device (25) for drilling holes in bone and configured to determine bone screw length, the device (25) including a surgical power drill (2) comprising: a) a housing (12) and; b) a measuring device (1) releasably attached or fixed to the housing (12), wherein the measuring device (1) is configured to measure the distance (x) covered by the housing (12) in the direction of the longitudinal axis (7) and relative to a surface of an implant (26) or a bone during a drilling process, wherein the measuring device (1) comprises a processing unit (14) to record the distance (x) covered with respect to time; the processing unit (14) comprises one or more differentiators to determine at least the first and second derivatives of the distance (x) covered with respect to time; and the processing unit (14) further comprises a peak detector to analyze one or more peaks occurring in the graph of the highest derivative with respect to time, and wherein the measuring device (1) comprises a laser device or an ultrasound position

Abstract: Bone plate (1) with a lower surface (2), an upper surface (3), a maximum thickness measured between the lower and upper surfaces a left lateral surface (4), a right lateral surface (5), a longitudinal axis (6) and a plurality of plate holes (7) miming from the lower surface to the upper surface, the bone plate further having a slot (8) in the lower surface extending from the left lateral surface to the right lateral surface having a width measured in a plane parallel to the longitudinal axis and a central plane (16) between the lateral surfaces, wherein (i) the hollow space defined by the slot extends in the form of a straight cylinder from the left lateral surface to the right lateral surface and (ii) the slot comprises an undercut feature (9) limiting the opening of the slot when the bone plate is bent longitudinally in a direction aimed at widening the slot.

Abstract: A device (1) for measuring, processing and transmitting implant parameters in osteosynthesis, the device (1) comprising: a biocompatible sterilizable housing (2); a strain sensor (3); an electronic unit (4) to process electrical signals provided by the strain sensor (3), wherein the housing (2) comprises (i) a measurement portion (5) of the height H5 comprising a cavity (51); and (ii) a compartment portion (6) of the height H6 with a cavity (61), and wherein the measurement portion (5) comprises at least two affixing means (7) for affixing the device (1) to an implant and wherein the electronic unit (4) is positioned in the cavity of the compartment portion (6).

Abstract: A device (25) for drilling holes in bone and configured to determine bone screw length, the device (25) including a surgical power drill (2) comprising: a) a housing (12) and; b) a measuring device (1) releasably attached or fixed to the housing (12), wherein the measuring device (1) is configured to measure the distance (x) covered by the housing (12) in the direction of the longitudinal axis (7) and relative to a surface of an implant (26) or a bone during a drilling process, wherein the measuring device (1) comprises a processing unit (14) to record the distance (x) covered with respect to time; the processing unit (14) comprises one or more differentiators to determine at least the first and second derivatives of the distance (x) covered with respect to time; and the processing unit (14) further comprises a peak detector to analyze one or more peaks occurring in the graph of the highest derivative with respect to time, and wherein the measuring device (1) comprises a laser device or an ultrasound position

Abstract: An assembly for correcting unbalanced growth plate activity including: (a) an implant formed of wire having (i) a longitudinal central section (2), (ii) a first end (3) configured as a first loop (4) in a form of a first helical coil (9) having a central axis (5) that is transverse to a longitudinal axis of the central section, and (iii) a second end (6) configured as a second loop (7) having a central axis (8) that is transverse to the longitudinal axis of the central section; (b) a first bone screw having a shaft section that is insertable through the first loop; and (c) a second bone screw having a shaft section that is insertable through the second loop. A kit for correcting unbalanced growth plate activity and to a method for correcting unbalanced growth plate activity are also disclosed.

Abstract: A surgical instrument (25), in particular a surgical cutting or drilling instrument, the surgical instrument (25) comprising: a drive unit; a cutting tool or drill bit (5) engageable with the drive unit; a measuring device (1) which is configured to measure the distance [x(t)] covered by the cutting tool or drill bit (5) along a cutting or drilling path with respect to time and relative to a reference position; a processing un and a digital data storage, wherein in the digital data storage reference data are stored which include at least one data set specifying a reference graph GRef within a time window (11) in the range of a transition and defining a reference point of a transition (21?), wherein the time window (11) includes a first time period before the reference point of a transition (21?) and a second time period after the reference point of a transition (21?) and wherein the processing unit (14) suitably programmed to compare the recorded graph G with the at least one reference graph GRef and to find

Abstract: Reference device (1) for real-time tracking of bone and/or surgical objects in computer-assisted surgery, the device (1) comprising: A) an upper member (2) having at least one circular cylindrical hole (3) penetrating through the upper member (2) from the upper surface (5) to the lower surface (6), wherein the hole (3) defines a circular cylindrical reference element (15) having a diameter d and a height h, the ratio between the diameter d and the height h of the reference element (15) is minimum 1/3, and B) a lower member (4) configured to cover the lower orifices (8) of the holes (3); and wherein C) the upper member (2) is configured as a plate shaped body.

Abstract: A device (25) for drilling holes in bone and configured to determine bone screw length, the device (25) including a surgical power drill (2) comprising: a) a housing (12) and; b) a measuring device (1) releasably attached or fixed to the housing (12), wherein the measuring device (1) is configured to measure the distance (x) covered by the housing (12) in the direction of the longitudinal axis (7) and relative to a surface of an implant (26) or a bone during a drilling process, wherein the measuring device (1) comprises a processing unit (14) to record the distance (x) covered with respect to time; the processing unit (14) comprises one or more differentiators to determine at least the first and second derivatives of the distance (x) covered with respect to time; and the processing unit (14) further comprises a peak detector to analyze one or more peaks occurring in the graph of the highest derivative with respect to time, and wherein the measuring device (1) comprises a laser device or an ultrasound position

Abstract: Kit for assembling an implantable medical device (30) provided with a data acquisition device (1), the kit comprising: a medical implant (100); a data acquisition device (1) which includes: one or more sensors (5); an electronic data processing device (2) electrically connectable or connected to the one or more sensors (5); a data memory (16); a data transmission device (4); and a biocompatible sterilisable housing (9) encapsulating at least the data processing device (2), the data memory (16) and the data transmission device (4); wherein the housing (9) comprises means (10) for releasably affixing the housing (9) to the implant (100), the data processing device (2) is programmed to calculate statistical data based on measurement data received from the one or more sensors (5) and to store the statistical data in the data memory (16); and wherein the one or more sensors (5) are either arranged in the housing (9); or the one or more sensors (5) are separately fixable to the implant (100) in a selected position.

Abstract: A device (25) for drilling holes in bone and configured to determine bone screw length, the device (25) including a surgical power drill (2) comprising: a) a housing (12) and; b) a measuring device (1) releasably attached or fixed to the housing (12), wherein the measuring device (1) is configured to measure the distance (x) covered by the housing (12) in the direction of the longitudinal axis (7) and relative to a surface of an implant (26) or a bone during a drilling process, wherein the measuring device (1) comprises a processing unit (14) to record the distance (x) covered with respect to time; the processing unit (14) comprises one or more differentiators to determine at least the first and second derivatives of the distance (x) covered with respect to time; and the processing unit (14) further comprises a peak detector to analyze one or more peaks occurring in the graph of the highest derivative with respect to time, and wherein the measuring device (1) comprises a laser device or an ultrasound position

Abstract: The bone plate (1) has a lower surface (2), an upper surface (3), a thickness T measured between the lower and upper surfaces (2;3), a longitudinal axis (4) and a plurality of plate holes (5) running from the lower surface (2) to the upper surface (3). The bone plate (1) further has a slot (6) extending from the lower surface (2) towards the upper surface (3) and having a width W measured at the lower surface (2) and parallel to the longitudinal axis (4). The slot (6) extends to a maximum distance D measured from the lower surface (2) towards the upper surface (3) of 0.4-0.9 times the thickness T of the bone plate (1). The slot (6) has a width measured parallel to the longitudinal axis (4) which at its maximum extension E is at least 0.8 mm, preferably of at least 3 mm. The slot (6) allows the plate (1) to bend longitudinally—additionally to the intrinsic bendability of the unslotted plate (1)—at most to the amount of 20°, preferably at most to the amount of 10°.

Abstract: An assembly for correcting unbalanced growth plate activity including: (a) an implant formed of wire having (i) a longitudinal central section (2), (ii) a first end (3) configured as a first loop (4) in a form of a first helical coil (9) having a central axis (5) that is transverse to a longitudinal axis of the central section, and (iii) a second end (6) configured as a second loop (7) having a central axis (8) that is transverse to the longitudinal axis of the central section; (b) a first bone screw having a shaft section that is insertable through the first loop; and (c) a second bone screw having a shaft section that is insertable through the second loop. A kit for correcting unbalanced growth plate activity and to a method for correcting unbalanced growth plate activity are also disclosed.

Abstract: A device (1) for processing and transmitting measured signals which correspond to implant parameters or biological parameters for monitoring and/or controlling medical implants, diagnostic devices or biological processes including: a biocompatible sterilizable covering (9); an electronic signal processing device (2) electrically connectable to at least one sensor (5) for processing measured signals received from the at least one sensor; a data memory (16) electrically connected to said signal processing device for storing data received from said signal processing device; and a data transmission device (4) electrically connected to said data memory for transmitting data received from said data memory to a remote data receiving device (6) which is connectable to an external data processing device (8). The signal processing device calculates statistically relevant data obtained from the measured signals, reducing the volume of stored data.

Abstract: Disclosed is a device (1) for processing and transmitting measured signals which correspond to implant parameters or biological parameters for monitoring and/or controlling medical implants, diagnostic devices or biological processes comprising: A) a biocompatible sterilizable covering (9); B) an electronic signal processing device (2) arranged in said covering (9) and electrically connectable to at least one sensor (5) allowing to process measured signals received from said at least one sensor (5); C) a data memory (16) arranged in said covering (9) and electrically connected to said signal processing device (2) allowing to store data received from said signal processing device (2); and D) a data transmission device (4) arranged in said covering (9) and electrically connected to said data memory (16) for transmitting data received from said data memory (16) to a remote data receiving device (6) which is connectable to an external data processing device (8), wherein E) said signal processing device (2) is pro

Abstract: A method for computer assisted determination of values of correction parameters for positioning a medical device relative to a target structure or to a reference base. The method includes a numerical procedure that includes the steps of: i) automatic detection of the projection of a cylindrical reference means in a medical image and determination of a minimum of four characteristic landmarks within the projection of the cylindrical reference means; ii) generating a virtual geometric representation of the cylindrical reference means; iii) determining the virtual projection points representing the characteristic landmarks using a virtual geometric representation of the cylindrical reference means; and iv) iterative determination of the position and orientation of the cylindrical reference means by matching the virtual projection points of the virtual geometric representation of the cylindrical reference means with the characteristic landmarks of the projection of the cylindrical reference means.