An instrument comprising a body comprising a distal end spaced apart from a proximal end relative to a longitudinal axis and a handle coupling located near the proximal end, the body defining a channel miming between the distal end to the proximal end; a drive comprising a first connector located adjacent the distal end and adapted to be connected to a driven instrument, a second connector located adjacent the proximal end and adapted to be connected to a driving instrument, and a drive shaft arranged in the channel, the drive shaft coupling the second connector to the first connector; and an adjustable handle located near the distal end, the adjustable handle comprising a grip spacing apart a leading end from a trailing end along a handle axis, the leading end coupling the handle to the handle coupling, the trailing end shaped to define an impaction plate; wherein the adjustable handle is arrangeable relative to the body in a first and a second position, in the first position the leading end is arranged relative to the handle coupling such that the handle axis is offset relative to the longitudinal axis, and in the second position the leading end is arranged relative to the handle coupling such that the handle axis is parallel to the longitudinal axis.

A handheld surgical instrument comprising an energy storage element, wherein the energy storage element is a spring coupled to the impacting mechanism, an impacting mechanism has a tip configured to impact a bone, wherein the tip includes a tapered point, a power transmission mechanism is configured to transmit energy from the energy storage element to the impacting mechanism, wherein the power transmission mechanism includes a semi-flexible metal wire guided by a hollow shaft, wherein the hollow shaft includes a distal end, the semi-flexible metal wire is includes a bend toward the distal end, a trigger mechanism is configured to release energy from the energy storage element, wherein the bend includes an angle between 14 degrees and 46 degrees, wherein the trigger mechanism includes a manual lever which, when actuated, simultaneously retracts the tip and charges the energy storage element.

A motor-driven orthopedic impacting tool is provided for orthopedic impacting in the hips, knees, shoulders and the like. The tool is capable of holding a broach, chisel, or other end effector, which when gently tapped in a cavity with controlled percussive impacts, can expand the size or volume of an opening of the cavity or facilitate removal of the broach, implant, or other surgical implement from the opening. A stored-energy drive mechanism stores potential energy and then releases it to launch a launched mass or striker to communicate a striking force to an adapter in either a forward or reverse direction. The tool may further include a combination anvil and adapter and an energy adjustment mechanism to adjust the striking force the launched mass delivers to the adapter in accordance with a patient profile.

The present invention relates to a portable medical drill impact attachment device. The device can be used for improving the accuracy and reliability of orthopedic surgeries and procedures by obviating a manual device such as a hammer for creating an impact. The attachment device is used for creating impact forces that can be transferred onto a bone, disc, joint, etc. The device features a housing that includes a rotary motion transformer and an impact mechanism assembly. The attachment transforms the rotational motion of a drill into reciprocal motion, and also enables a user to adjust and control the frequency and energy of the impact. An impactor tool can be detachably-attached to a quick-change tool gripper for providing an impact on a bone, disc or joint of a patient without applying any manual force.

A device for forcefully inserting a surgical implant in a recipient bone by impaction, comprising an impactor (10) that exerts an impaction force on the implant and is associated with at least one sensor (12). The sensor (12) measures a value from among the exerted impaction force and the deformation of the impactor (10) and provides a measurement signal representing the temporal variation of said value during an impact. The sensor (12) is connected to a processing unit (30) that is configured to compute, on the basis of the temporal variation of said value during the impact, an indicator representing the level of contact between the implant and the recipient bone. The indicator corresponds to the duration separating the instant corresponding to the first maximum amplitude peak of the measurement signal from the instant corresponding to the second maximum amplitude peak of the measurement signal. The implant can be a femoral rod (2).

An orthopedic surgical instrument or impactor is disclosed. The surgical instrument being configured to provide a first forward energy or motion to drive a surgical tool (e.g., a broach, a rasp, a cutting tool, etc.) and/or an orthopedic implant (e.g., an intramedullary nail, a stem, etc.) into a patient's bone and a second reverse energy or motion to, for example, remove a stuck or lodged surgical tool or implant from a patient's bone. In one embodiment, the surgical instrument incorporates dual springs and dual masses (impactors) to store and release energy on demand to deliver an impact force in both forward and reverse directions. In one embodiment, the surgical instrument may also include a forward energy adjuster and a reverse energy adjuster so that a user can independently adjust the amount of energy provided in the forward and reverse directions as well as a means to adjust impact frequency.

Disclosed herein is a surgical tool for debulking hard tissue. The surgical tool includes: (i) an elongated hollow member including a distally located bent section; (ii) a cable extending within the hollow member, along a predetermined length thereof; (iii) a headpiece positioned at, or distally to, the bent section; (iv) a rotation actuator coupled to the cable proximal end and configured to rotate the cable about a longitudinal axis thereof; and (v) a motion converter coupled to a distal end of the cable and to the headpiece, at least part of the motion converter is positioned in, and/or distally, to the bent section, the motion converter being configured to transform rotational motion of the cable into an axial, reciprocating motion of the headpiece. The headpiece is configured to break up hard tissue by hammering thereof, when effecting axial, reciprocating motion, while simultaneously minimizing damage to soft tissue if struck.

An impactor according to an embodiment of the present invention comprises an adapter detachably coupled to a rotary power tool, wherein the adapter includes: a case part; a tool coupling part receiving a rotational force from the rotary power tool; a first rotating part rotating in association with rotation of the tool coupling part in only one direction among rotation directions of the tool coupling part; a striking part transfer part rotating in association with rotation of the first rotating part; a striking part which is moved, while compressing a first spring, in a first direction by rotation of the striking part transfer part and then moved in a second direction opposite to the first direction by a restoring force of the first spring; and a force transfer part moved in the second direction by contact with the striking part.

Systems, methods, and devices are disclosed for navigational arrays for attaching to surgical tools, the arrays comprising a frame comprising fiducials for detection by an optical navigation system, and a body having a first end for supporting the frame and a second end defining an opening, wherein the opening is aligned with a first axis of the surgical tool, wherein the opening engages a stationary surface adjacent to the surgical tool, and wherein the opening engages features disposed at predetermined even intervals on the stationary surface adapted to allow repositioning of the array from a first position to a second position, wherein the second position is at least one of a rotational offset or an axial offset from the first position. The stationary surface may be a step disposed on an adapter inserted into the surgical tool. The stationary surface may be a sheath covering a rotatable shaft inserted into the surgical tool. The stationary surface may be a sleeve disposed on the surgical tool. The arrays may be part of a computer-assisted surgical system.

An apparatus for implanting a medical implant into bone includes: an implant having at least one predetermined natural frequency; and an instrument, comprising: a housing; a coupler carried by the housing and configured to be mechanically connected to a medical implant; and a forcing mechanism carried by the housing and operable to apply a cyclic excitation force at the predetermined natural frequency.