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 sensor for displacement assessment.

The present invention relates to a connection set for connecting a tool to a hand-held machine tool, which consists of, or comprises, a receptacle and an insert. The receptacle is designed provided and/or suitable to be fastened to a machine tool and to receive an insert. The insert is designed, provided and/or suitable for being fastened to the tool and for being releasably, at least in sections, inserted into the receptacle. In this, both the receptacle and the insert are continuous in the longitudinal direction and circumscribe each a lumen. Furthermore, the receptacle comprises one or several stationary pins projecting from an inner wall into the lumen and one or several movable pins. The outside of the insert comprises one or several guides, which are provided, designed or suitable for guiding the pins along the outside of the insert when inserting the insert into the lumen of the receptacle.

A surgical instrument comprises a hand-held portion configured to be manipulated by a user and a pivoting portion operatively coupled to the hand-held portion. The pivoting portion is configured to pivot with respect to the hand-held portion according to first and second degrees of freedom. The pivoting portion includes an accessory drive motor, an accessory drive member configured to be driven by the accessory drive motor, a plurality of lead screws, a carriage including a central aperture axially extending through the carriage and configured to interface with and linearly translate along the plurality of lead screws, and a linear drive motor configured to rotate the plurality of lead screws to linearly translate the carriage relative to the hand-held portion with respect to a third degree of freedom. The accessory drive member extends through and is configured to move within the central aperture of the carriage.

A verification instrument configured to verify the location of a surgical end-effector, including: a body; a navigation element disposed and configured to represent a spatial location of the body; a first clip extending from the body configured to clip onto a tool; a length measurement portion disposed at a first angle from the body, wherein the length measurement portion is configured to contact a tool tip when the first clip is clipped onto the tool.

The present disclosure describes a device and methods for safely and accurately placing screws into bones with a powered driving device. By employing multiple layers of fail-safe features and image-guidance systems, the powered driving device provides safe, accurate, and efficient screw placement. That is, the powered driving device may continuously monitor a screw advancement and placement and may automatically shutdown when improper placement is detected. Monitoring placement may be conducted by a microcurrent-monitoring system, by an image-guidance system, or by any other appropriate sensory system. Additionally, upon detecting that screw insertion is complete, the powered driving device may be automatically shutdown. As screw placement is continuously simulated by image-guidance in real time, multiple redundant verification steps are eliminated, providing highly accurate screw placement while decreasing clinician error, device contamination, and surgical time, the decreased surgical time associated with decreased patient-recovery time and associated medical costs.

Disclosed herein are intraosseous access devices having various operating mechanisms, as well as methods of the intraosseous access devices. For example, an intraosseous access device includes, in some embodiments, a constant-torque spring assembly, a drive shaft, an intraosseous needle, and an interlock mechanism. The constant-torque spring assembly is disposed in a housing, and the drive shaft extends from the housing. The drive shaft is coupled to the constant-torque spring assembly. The intraosseous needle is coupled to the drive shaft. The intraosseous needle is configured for drilling through bone and providing intraosseous access to a medullary cavity of a patient. The interlock mechanism is configured to prevent rotation of the intraosseous needle and the drilling therewith until the interlock mechanism is disengaged.

A rolling bearing, in particular a ball bearing, in particular for use in a surgical instrument, which is designed for forwarding or transmitting electrical signals and has for this purpose at least one signal line or signal path integrated in the rolling bearing. A sleeve, in particular for use in a surgical instrument, is designed for forwarding or transmitting electrical signals and has for this purpose at least one signal line or signal path integrated in the sleeve. A surgical instrument, in particular a hand-held milling cutter, includes at least one ball bearing and at least one sleeve, each having a respective method of production.

A rasp for use with a powered surgical handpiece comprises opposed proximal and distal ends and a rasp region. The proximal end includes a mount portion. The mount portion defines a pivot axis. The rasp region extends between the mount portion and the distal end and includes the distal end. The rasp region has opposed first and second surfaces connecting at a common edge. The first surface is convex and the second surface is concave. The rasp region has a plurality of cutting projections disposed on at least one of the first surface and the second surface. The rasp region has a center axis substantially parallel to the pivot axis.

A handheld surgical instrument includes a motor that transmits rotational movement to a drill bit of the handheld surgical instrument. The drill bit extends through a depth measurement module with a depth measurement extension, and a cannula, which extends forward from the drill to measure bore depth. The depth measurement extension is moveably mounted to the drill so as to extend into the rotor bore of the motor. As the drill advances forward, the depth measurement extension remains static. As a result of the advancement of the drill, the rotor extends over the proximal end of the depth measurement extension. A controller is configured to determine a breakthrough time and a breakthrough displacement of the drill bit based on displacement data and derived signals. The controller is further configured to determine a proper length of a screw to be used in a fixation surgical procedure based on the displacement data.

A handheld electrosurgical instrument is disclosed, which comprises an upper lobe and a lower lobe, which join at and extend from a narrow neck region substantially perpendicular to one another. The instrument typically includes a surgical tool extending from a distal portion of the upper lobe. The tool may be modular, and the instrument may accommodate any of a plurality of different types and configurations of surgical tools.