4398results about "Surgical saws" patented technology

A surgical instrument including a housing, an endoscopic portion, a shaft portion and an end effector is disclosed. The endoscopic portion extends distally from the housing and defines a longitudinal axis. The shaft portion is selectively connectable to a distal end of the endoscopic portion. The end effector is selectively connectable to a distal end of the shaft portion.

A powered surgical apparatus can be used with a source of irrigation fluid and a source of suction. The powered surgical apparatus can include a cutting blade assembly and a handle. The handle can include an upper portion defining a distal section connectable to the cutting blade assembly and a lower portion extending downwardly from the upper portion. The handle can be connectable to the source of irrigation fluid and the source of suction. The system can also include a manually actuable input device that provides at least one signal relevant to at least one operation of the system, and a controller that receives the at least one input signal and provides an output signal to perform the at least one operation of the system.

A surgical power tool includes a hand unit and a tool holder. The tool holder engages a hub of a tool to hold the tool during use. One tool holder includes a substantially planar support surface, a pair of spaced-apart sidewalls protruding from the support surface, each sidewall having at least one tab extending from the sidewall toward the other of the sidewalls. A tool clamp, including a post protrudes from the support surface with an enlarged head at a distal end thereof. A lock button protrudes from the support surface, the lock button being depressible toward the support surface. Another tool holder includes an output shaft having a driven end and a free end, the free end of the output shaft having a slot formed therein. A collet is disposed coaxially with the output shaft and is rotatable relative thereto. The collet has a collet wall extending between the first and second ends of the collet. The collet has a plurality of slots in the first end of the collet, a plurality of grooves in an inner surface of the collet wall, and a plurality of internal ridges protruding from the inner surface of the collet wall.

A powered surgical tool with a housing that contains a power generating unit such as a motor. A control module is disposed in a shell that is mounted in the housing. The control module contains a control circuit for regulating the actuation of the power generating unit. The power generating unit emits a signal representative of the operating state of the unit that is transmitted through the structural material forming the shell. Also internal to the control module shell is a sensor that monitors the signal emitted by the power generating unit. This signal output by the sensor is applied to the control circuit. The control circuit, based on the sensor signal regulates actuation of the power generating unit. Wherein the power generating unit is a motor, the signal emitted is the magnetic field that varies with rotor position. The sensor monitors the strength of this field.

A surgical power tool includes a hand unit and a detachable power module received in the hand unit to provide power to the hand unit. The power module includes a housing, an electric motor in the housing to provide mechanical energy to the hand unit, an electrical power supply in the housing to provide electrical energy to the electric motor, and an electronic controller in the housing for controlling the electric motor. Since the power module is received in the hand unit, there is no need for the power module to be sterilized.

A surgical instrument having a locking mechanism for preventing an output shaft of the surgical instrument from rotating and a further locking mechanism for mounting a battery pack to a distal end of a housing of the surgical instrument. The surgical instrument further includes a clutch mechanism for limiting the torque of a drive shaft of the surgical instrument. The locking mechanism for preventing the output shaft from rotating includes a locking switch which mates with a locking cap disposed on the output shaft. The locking mechanism for mounting the battery pack to the housing includes a groove at the distal end of the housing and a retaining ring which engages the groove when the battery pack is mounted on the housing. The clutch mechanism includes a clutch plate that interfaces with both the output shaft and the drive shaft and prevents failure of the motor shaft.

A cordless medical apparatus suitable for use in orthopedic medical applications is disclosed. The medical device includes a disposable sterile housing having a sleeve, said sleeve being configured to receive an unsterilized motor assembly. The invention further includes a sterile packaging system for enclosing the sterile housing and inserting a non-sterile component in the sterile housing.

Methods and devices described herein facilitate improved access of locations within the body by providing a variety of dissection modes on a single access device.

A surgical tool system comprising a control console, a powered surgical device, an intermediate attachment removably connected to the surgical device and a cutting accessory removably connected to the intermediate attachment. Internal to the cutting accessory is an identification device that contains data specific to the operation of the accessory. The control console, through the transfer of signals through the powered surgical device and the intermediate attachment reads the data in the cutting accessory. Based on these data, the control console selectively actuates the powered surgical device. In some versions of the invention, the identification device may be an RFID chip. Signals are exchanged between the surgical device and the intermediate attachment and between the intermediate attachment and cutting accessory by inductive coupling. An identification device internal to the intermediate attachment provides the control console with data describing the intermediate attachment.

A rechargable battery with an internal microcontroller. The microcontroller contains a memory in which data regarding the environment to which the battery is exposed are stored. These data are read by a processor integral with the charger used to charge the battery. If these data indicates the battery may have been subjected to a harsh environment for an excessive period of time, the charger performs a complete state of health evaluation of the battery.

A medical device for removing or manipulating tissue of a subject is provided with a distal housing having an end effector, and an elongate member configured to introduce the distal housing to a target tissue site of the subject. The elongate member may have proximal and distal portions interconnected by a joint mechanism that is configured to allow the two portions to articulate relative to one another. In some embodiments, the joint mechanism includes one or more nested crown gear(s) configured to drive associated spur gear(s) to accomplish the articulation. In some embodiments, the end effector is a powered scissors device.

A number of improvements are provided relating to computer aided surgery. The improvement relates to both the methods used during computer aided surgery and the devices used during such procedures. Some of the improvement relate to controlling the selection of which data to display during a procedure and / or how the data is displayed to aid the surgeon. Other improvements relate to the structure of the tools used during a procedure and how the tools can be controlled automatically to improve the efficiency of the procedure. Still other improvements relate to methods of providing feedback during a procedure to improve either the efficiency or quality, or both, for a procedure.

According to an aspect of the present invention, a medical device is provided, which comprises the following: (a) a hollow elongate body (e.g., a elongate cylinder, such as a needle) having distal and proximal ends; and (b) a rotatable member comprising a tissue morselizer and an elongate shaft (e.g., an auger-like tissue-drilling bit). The device (i) advances material (e.g., morselated tissue) toward the proximal end of the hollow elongate body when the shaft is rotated in a first direction, and (ii) advances material (e.g., a therapeutic agent and / or a bulking agent) toward the distal end of the hollow elongate body when the shaft is rotated in a second direction that is opposite the first direction. The invention also provides a method of treatment for morselizing and removing tissue from within the patient and creating a void within the patient and introducing a therapeutic agent and / or a bulking agent into the void.

Systems and methods for joint replacement are provided. The systems and methods include a surgical orientation device, a reference sensor device, and at least one orthopedic fixture. The surgical orientation device, reference sensor device, and orthopedic fixtures can be used to locate the orientation of an axis in the body, to adjust an orientation of a cutting plane or planes along a bony surface, or otherwise to assist in an orthopedic procedure(s).

A medical manipulator system includes a manipulator, an operating unit for entering operation commands, motors for actuating a working unit, and a controller for energizing the motors based on operation commands supplied from the operating unit. When an activation resetting switch and a resetting switch are operated according to a predetermined procedure, the controller performs a resetting process to return the motors to an origin. The controller is capable of controlling three manipulators. The activation resetting switch is shared by the three manipulators, and there are three resetting switches corresponding to the three manipulators.

Disclosed herein are methods, compositions and tools for repairing articular surfaces repair materials and for repairing an articular surface. The articular surface repairs are customizable or highly selectable by patient and geared toward providing optimal fit and function. The surgical tools are designed to be customizable or highly selectable by patient to increase the speed, accuracy and simplicity of performing total or partial arthroplasty.

A motorized surgical handpiece comprises a housing enclosing an interior containing a motor and an output shaft for being driven in rotation by the motor. The output shaft has a central longitudinal axis, a bore extending therethrough for receiving a shank of a surgical tool to be rotatably driven by the output shaft, a forward end portion extending forwardly beyond the motor and a rearward end portion extending rearwardly beyond the motor. The housing has a continuous lumen extending entirely therethrough formed in part by the output shaft bore for insertion of a bore brush through the lumen for cleaning when the surgical tool is removed from the handpiece. The handpiece has forward and rearward labyrinth seals comprising rotor components respectively attached to the forward and rearward end portions of the output shaft for rotation in corresponding stator components with there being a labyrinthine clearance between each rotor component and its stator component to receive pressurized air during use and during cleaning of the handpiece to avoid the entry of contaminants.

A surgical cutting and fastening instrument that includes an elongate channel that is attached to a handle assembly by an elongate shaft assembly. The elongate channel is configured to receive a cartridge and has a pivotally translatable anvil attached thereto and a knife bar supported therein. The anvil may be selectively opened and closed by manipulating a closure trigger supported by the handle assembly. The knife bar may be distally advanced through the elongate channel by actuating a firing trigger that cooperates with a reversible rotary drive supported by the handle assembly. The knife bar may also be retracted to its starting position by actuating the firing trigger after the reversible rotary drive has been shifted to a retraction orientation.

A number of improvements are provided relating to computer aided surgery utilizing an on tool tracking system. The various improvements relate generally to both the methods used during computer aided surgery and the devices used during such procedures. Other improvements relate to the structure of the tools used during a procedure and how the tools can be controlled using the OTT device. Still other improvements relate to methods of providing feedback during a procedure to improve either the efficiency or quality, or both, for a procedure including the rate of and type of data processed depending upon a CAS mode.

An endoscopic instrument comprises a shaft, comprising a proximal end and a distal end. A grip comprising a handle is arranged at said proximal end of said shaft and a tool having at least an open and a closed position is arranged at said distal end of said shaft. Said shaft comprises at least two sections, a first section and a second section, which can be articulated with respect to said first section. Said second section comprises said tool. Said instrument further comprises an actuating element, by means of which said handle is in operative connection with said second section and with which an articulation of said second section can be initiated. Said first section or said actuating element and said tool are connected by a control element, by means of which said tool can be moved back and forth between said closed position and said open position in the course of an articulation of said second section, such that both the articulation of said second section and an opening / closing of said tool can be accomplished by the movement of said actuating element.

A surgical cutting and fastening instrument is disclosed. According to various embodiments, the instrument includes an end effector, a main drive shaft assembly connected to the end effector, and a gear drive train connected to the main drive shaft assembly. The end effector comprises a movable cutting instrument for cutting an object positioned in the end effector. The instrument also includes a main motor for actuating the gear drive train and a firing trigger for actuating the main motor. The instrument also includes a tactile position feedback system for applying force to the firing trigger such that the position of the firing trigger is related to the position of the cutting instrument in the end effector.

A device for use with a penetrating member driver to penetrate tissue is provided. A plurality of penetrating members are coupled to a single cartridge and are operatively couplable to the penetrating member driver. The penetrating members are movable to extend radially outward from the cartridge to penetrate tissue. A plurality of analyte sensors are coupled to the single cartridge and are positioned on the cartridge to receive body fluid from a wound in the tissue created by the penetrating member.

An integrated lancing and measurement device is provided comprising a sensor designed to determine the amount and / or concentration of analyte in a biological fluid having a volume of less than about 1 μL. A piercing member is adapted to pierce and retract from a site on the patient to cause the fluid to flow therefrom, and the sensor is positioned adjacent to the site on the patient so as to receive the fluid flowing from the site to generate an electrical signal indicative of the concentration of the analyte in the fluid. The sensor is comprised of a working electrode comprising an analyte-responsive enzyme and a redox mediator, and a counter electrode. An analyte monitor is operatively connected to the sensor and adapted to measure the signal generated by the sensor. Also provided are analyte measuring methods that optionally employ the integrated lancing and measurement device.

The method comprises providing a lancing device comprising a penetrating member (68) driver having a position sensor (74) and a processor (60) that can determine the relative position and velocity of the penetrating member (18, 72) based on measuring relative position of the penetrating member with respect to time; providing a predetermined velocity control trajectory based on a model of the driver (68) and a model of tissue to be contacted. Furthermore, a feedforward control is able to maintain penetrating member velocity along the trajectory.

A powered surgical stapler is disclosed. The stapler includes a housing, an endoscopic portion extending distally from the housing and defining a first longitudinal axis, a drive motor disposed at least partially within a housing and a firing rod disposed in mechanical cooperation with the drive motor. The firing rod is rotatable by the motor about the first longitudinal axis extending therethrough. The stapler also includes an end effector disposed adjacent a distal portion of the endoscopic portion. The end effector is in mechanical cooperation with the firing rod so that the firing rod drives a surgical function of the end effector. The stapler further includes a control system having a plurality of sensors coupled to the drive motor, the firing rod, the loading unit and the end effector, the plurality of sensors configured to detect operating parameters thereof. The control system also includes a microcontroller coupled to the plurality of sensors and being configured to determine operating status of the powered surgical stapler as a function of the detected operating parameters.

Method and apparatus for obtaining a sample of blood from a patient for subsequent diagnostic tests, e.g., glucose monitoring. In one aspect of the invention, the method comprises the steps of:(a) placing a blood collection device over a region on the surface of the skin from which said sample is to be obtained,(b) forming a seal between said blood collection device and said surface of the skin,(c) creating a vacuum sufficient to result in said surface of the skin becoming stretched and engorged with blood,(d) triggering a lancing assembly and causing a lancet to penetrate said skin,(e) retracting said lancet,(f) withdrawing blood toward and onto a fluid collector, and(g) releasing the vacuum.In another aspect of the invention, an apparatus for carrying out the method described previously is provided. The apparatus comprises:(a) a housing having a sealable chamber located therein and a sealable opening in fluid communication with said sealable chamber,(b) a power source,(c) a vacuum pump operably connected to said power source, said vacuum pump in communication with said sealable chamber,(d) a lancing assembly positioned within said housing, said lancing assembly capable of moving a lancet towards said sealable opening, and(e) a fluid collector positioned in said sealable chamber, said fluid collector in fluid communication with said sealable opening.

A surgical instrument is disclosed. The surgical instrument has an end effector and a trigger in communication with the end effector. The surgical instrument also has a built-in memory system for recording the instrument condition during a use process. The recording system comprises: a first sensor located on or inside the instrument and an externally accessible built-in memory device in communication with the first sensor. The first sensor has an output that represents a first condition of either the trigger or the end effector. The memory device is configured to record the output of the first sensor. In various embodiments, memory device may include an output port and / or a removable storage medium.

An endoscopic instrument is provided and includes a housing including an elongated shaft assembly extending distally therefrom. The elongated shaft assembly includes inner and outer shaft members. The inner and outer shaft members are removably coupled to the housing and the outer shaft member is movable with respect to the inner shaft member. An end effector is operably supported at the distal end of the outer shaft member and includes a pair of jaw members configured for treating tissue. A bushing operably couples to the inner and outer shaft members of the shaft assembly and selectively and releasably couples to the housing. The bushing includes one or more mechanical interfaces configured to engage one or more slots defined through the inner shaft member and one or more slots defined through the outer shaft member to release the inner and outer shaft members from the housing.