| Patent application number | Description | Published |
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| 20100036405 | ULTRASONIC DEVICE FOR CUTTING AND COAGULATING WITH STEPPED OUTPUT - Various embodiments are directed to an apparatus, system, and method for driving an end effector coupled to an ultrasonic transducer in a surgical instrument. The method comprises generating a first ultrasonic drive signal by a generator coupled to an ultrasonic drive system, actuating the ultrasonic transducer with the first ultrasonic drive signal for a first period, generating a second ultrasonic drive signal by the generator, and actuating the ultrasonic transducer with the second ultrasonic drive signal for a second period, subsequent to the first period. The first drive signal is different from the second drive signal over the respective first and second periods. The first and second drive signals define a step function waveform over the first and second periods. The apparatus comprises a generator configured to couple to an ultrasonic instrument. The system comprises a generator coupled to an ultrasonic instrument. The ultrasonic instrument comprises an ultrasonic drive system comprising an ultrasonic transducer coupled to a waveguide and an end effector coupled to the waveguide, and wherein the ultrasonic drive system is configured to resonate at a resonant frequency. | 02-11-2010 |
| 20100089970 | POWERED SURGICAL CUTTING AND STAPLING APPARATUS WITH MANUALLY RETRACTABLE FIRING SYSTEM - In one general aspect, various embodiments of the present invention can include a motorized surgical cutting and fastening instrument having a drive shaft, a motor selectively engageable with the drive shaft, and a manual return mechanism configured to operably disengage the motor from the drive shaft and retract the drive shaft. In at least one embodiment, a surgeon, or other operator of the surgical instrument, can utilize the manual return mechanism to retract the drive shaft after it has been advanced, especially when the motor, or a power source supplying the motor, has failed or is otherwise unable to provide a force sufficient to retract the drive shaft. | 04-15-2010 |
| 20100198220 | SURGICAL INSTRUMENTS AND COMPONENTS FOR USE IN STERILE ENVIRONMENTS - A surgical instrument comprises a first portion encapsulated by a membrane and a second portion comprising a surgical instrument body and a cavity in the surgical instrument body. The cavity is configured to receive the first portion. The second portion comprises a first region comprising an opening in communication with the cavity, and a closure member movable between a first position and a second position. The closure member is in sealable engagement with the second region when it is in the first position and is at least partially free from sealable engagement with the second region when it is in the second position. One or more electrical contacts on the first portion or the second portion are configured to penetrate the membrane to allow a connection to be made between the first portion and the second portion when the closure member moves from the second position into the first position. | 08-05-2010 |
| 20110006101 | MOTOR DRIVEN SURGICAL FASTENER DEVICE WITH CUTTING MEMBER LOCKOUT ARRANGEMENTS - A surgical fastener apparatus having a handle, an elongated shaft having a proximal end attached to the handle and a distal end extending therefrom. An end effector including a pair of jaws pivoted at a proximal end thereof and movable between an open and closed position. A cartridge containing a plurality of surgical fasteners, the cartridge attached to the end effector. An electrically powered actuator for deploying the surgical fasteners, the actuator having a power source and a motor. A first trigger attached to the handle for moving the end effector from the open to the closed position, and a second trigger attached to the handle for activating the actuator. A first lockout mechanism for preventing current from flowing from the power source to the motor unless the end effector is in its closed position a second lockout mechanism having a locked and unlocked position, the second lockout mechanism for preventing movement of the second trigger until the second lockout mechanism is moved to the unlocked position. | 01-13-2011 |
| 20110006103 | MOTOR DRIVEN SURGICAL FASTENER DEVICE WITH CUTTING MEMBER REVERSING MECHANISM - A surgical fastener apparatus including a handle, an elongated shaft having a proximal end attached to the handle and a distal end extending therefrom. An end effector comprising a pair of jaws pivoted at a proximal end thereof and movable between an open and closed position, and a cartridge containing a plurality of surgical fasteners, the cartridge attached to the end effector. An electrically powered actuator for deploying the surgical fasteners. An electrically activated reverse mechanism for moving the elongated member from a distal most position within the end effector to a proximal position, the electrically activated reverse mechanism moves the elongated member proximally after the elongated member has moved to the distal most position by moving the trigger to the open position, and wherein after activation of the reverse mechanism proximal movement of the elongated member can be stopped by returning the trigger to its closed position. | 01-13-2011 |
| 20110082486 | DEVICES AND TECHNIQUES FOR CUTTING AND COAGULATING TISSUE - Various embodiments are directed to an apparatus and method of driving an end effector coupled to an ultrasonic drive system of a surgical instrument. The method comprises generating at least one electrical signal. The at least one electrical signal is monitored against a first set of logic conditions. | 04-07-2011 |
| 20110087213 | SURGICAL GENERATOR FOR ULTRASONIC AND ELECTROSURGICAL DEVICES - A surgical generator for providing a drive signal to a surgical device may have a receptacle assembly having a receptacle body, a flange and a central protruding portion. The outer periphery of the central protruding portion may have at least one curved section and at least one linear section. Additionally, a surgical instrument may comprise an electrical connector assembly having a flange. The flange may comprise at least one curved section and at least one linear section. In some embodiments, A surgical instrument system may comprise a surgical generator, a surgical instrument comprising a connector assembly, and an adapter assembly operatively coupled to the receptacle assembly and the connector assembly. | 04-14-2011 |
| 20110114697 | CIRCULAR STAPLER INTRODUCER WITH MULTI-LUMEN SHEATH - Introducers for introducing a surgical circular stapler into a patient. Various embodiments comprise a sheath that defines a first lumen that has a closed end and an open end. The first lumen may be sized to receive at least a distal end portion of the stapling head of the stapler within the closed end. The sheath may have a weakened area therein such that upon an application of a release motion thereto, the weakened area ruptures to permit the hollow sheath to be removed from the stapler. | 05-19-2011 |
| 20110114698 | CIRCULAR STAPLER INTRODUCER WITH RIGID CAP ASSEMBLY CONFIGURED FOR EASY REMOVAL - Introducers for introducing a surgical circular stapler into a patient. Various embodiments comprise a hollow flexible sheath that has a distal end and an open proximal end that is sized to receive a stapling head portion of the circular stapler therein. A rigid cap assembly may be attached to the distal end of the hollow flexible sheath The rigid cap assembly may be configured to selectively move between a closed position wherein a distal face of the stapling head is covered and an open position wherein the distal face of the stapling head is exposed. A portion of the rigid cap assembly has a shape that substantially matches a perimetrical shape of a portion of the stapling head to enable the rigid cap assembly to pass proximally over the stapling head when the introducer is withdrawn from the patient. | 05-19-2011 |
| 20110114699 | CIRCULAR STAPLER INTRODUCER WITH RADIALLY-OPENABLE DISTAL END PORTION - Introducers for introducing a surgical circular stapler into a patient. Various embodiments comprise a hollow flexible sheath that has a distal end and an open proximal end that is sized to receive a stapling head portion of the circular stapler therein. A radially-openable barrel member is attached to a distal end of the hollow flexible sheath to define an opening for receiving the stapling head therein. A rigid cap member is hingably attached to the radially-openable barrel member and is movable between a closed position wherein the rigid cap member covers a distal end of the opening in the barrel member and open position wherein the rigid cap member is movable to a position wherein the distal end of the opening is exposed. A releasable latch member is provided to engage and release opposed ends of the radially-openable barrel member. | 05-19-2011 |
| 20110114700 | DEVICES AND METHODS FOR INTRODUCING A SURGICAL CIRCULAR STAPLING INSTRUMENT INTO A PATIENT - Introducers for introducing a surgical circular stapler into a patient. Various embodiments comprise cover members that are applied over a stapling head portion of the circular stapler. In some embodiments, the cover members are fabricated from a flexible stretchable material and have a bumper portion that protrudes distally beyond the distal face of the stapling head. The staples may be fired through the cover member and the balance of the cover member is withdrawn from the patient with the stapling head. Other cover embodiments are selectively movable from a position wherein the distal face of the stapling head is covered and other positions wherein the distal face of the stapling head is exposed. | 05-19-2011 |
| 20110118761 | CIRCULAR STAPLER INTRODUCER WITH RIGID DISTAL END PORTION - Introducers for introducing a surgical circular stapler into a patient. Various embodiments comprise a hollow flexible sheath that has a distal end and an open proximal end that is sized to receive a stapling head portion of the circular stapler therein. A rigid cap assembly is attached to the distal end of the hollow flexible sheath. The rigid cap assembly may be configured to selectively move between a closed position wherein a distal face of the stapling head is covered when inserted therein and an open position wherein the cap assembly may be withdrawn from around the stapling head and elongated shaft. A release arrangement interfaces with the rigid cap assembly such that upon an application of a release motion thereto, the rigid cap is movable from the closed position to the open position. | 05-19-2011 |
