An electronic system for a surgical instrument is disclosed. The electronic system comprises a main power supply circuit configured to supply electrical power to a primary circuit. A supplementary power supply circuit configured to supply electrical power to a secondary circuit. A short circuit protection circuit coupled between the main power supply circuit and the supplementary power supply circuit. The supplementary power supply circuit is configured to isolate itself from the main power supply circuit when the supplementary power supply circuit detects a short circuit condition at the secondary circuit. The supplementary power supply circuit is configured to rejoin the main power supply circuit and supply power to the secondary circuit, when the short circuit condition is remedied.

Provided is a locking apparatus, and more particularly, to a locking apparatus with improved locking performance as a locking unit is stuck between different members capable of moving relative to each other and in which locking is released as an unlocking unit pushes the locking unit.

A device for applying a hemostatic clip assembly includes a proximal delivery catheter having a handle assembly and an elongated catheter body defining a longitudinal axis extending distally from the handle assembly, and a distal clip assembly removably connected to a distal end of the catheter body. The distal clip assembly includes a distal clip housing, a jaw assembly and a jaw adapter yoke. The jaw assembly has a pair of jaw members fixed to the distal clip housing by a first pin oriented orthogonally relative to the longitudinal axis. The jaw adapter yoke is operatively connected to the jaw members. The proximal delivery catheter is configured to transmit linear motion along and torsion about the longitudinal axis to at least a portion of the distal clip assembly. At least one of the jaw members is configured to rotate about the first pin between an open and a closed configuration.

A system for treating tissue includes a cap mounted over a distal end of an endoscope, a clip mountable over the cap and including first and second jaws movably connected to one another between an insertion configuration, in which the first and second jaws extend over the cap to receive a target tissue therebetween, a review configuration, in which at least a portion of the clip extends into a field of view of the optical system of an endoscope, and a deployed configuration in which the clip is moved distally off of the cap so that the first and second jaws are drawn toward one another. A control element is configured so that movement proximally through the cap via a first distance moves the clip from the insertion configuration to the review configuration and a second distance moves the clip from the review configuration to the deployed configuration.

A surgical power drill system includes a housing unit, a driving unit, a tool holder, and a screw member. The driving unit is movably mounted in the housing unit and includes a motor and a motor shaft coupled to the motor. The driving unit is movable relative to the housing unit between a distal position, where the driving unit is distal from a front end of the housing unit, and a proximate position, where the driving unit is proximate to the front end of the housing unit. The tool holder is coupled to a first end portion of the motor shaft. The screw member is coupled to a second end portion of the motor shaft.

There is provided a staple instrument for inserting and removing staples from bone. A rotational drive shaft is turned to provide finite adjustments to open and close jaws used to hold and adjust the legs of a staple. A converter coupling converts the rotational motion of the drive shaft to liner motion to operate an articulated linkage system that moves the jaws. The jaws include a sharp edge to engage under a bridge of a staple inserted in bone segments and a convex pry surface that cooperates with the edge to pry a staple from the bone segments when the instrument is pulled away from the bone segments.

A surgical circular stapler has a handle assembly, a shaft, a stapling assembly, a motor, a drive assembly, and a firing assembly. The shaft extends distally from the handle assembly. The stapling assembly is secured to a distal end of the shaft. Longitudinal translation of the firing assembly causes the stapling assembly to drive a plurality of staples in a circular array to secure two lumens of tissue together. The stapling assembly may further drive a blade to sever any excess tissue interior of the circular array of staples. The motor is operable to rotate the drive assembly to thereby translate the firing assembly. A resilient member biases the firing assembly proximally. Through cooperation between the firing assembly and the resilient member, the firing assembly is driven distally and proximally to complete a firing stroke in response to rotation of the drive assembly through a single revolution.

The present invention reveals a needle set of laparoscopic surgery and knotting device thereof, the needle set comprising a body and an axis sleeve. Near the body side is formed a barrier, and the other side have a concave groove. The axis sleeve is hollow tube and fixedly run through the body. Therefore the needle set can axial insert into to the axis sleeve, and achieve the effect that minimizing the complicate of overall structure, reducing the length of a knotting device, and more convenient to operate.

Mechanical thrombectomy apparatuses including an inverting, rolling conveyor region (“tractor”) at the distal end that are configured to grab and remove thrombus material. In particular, described herein are mechanical thrombectomy apparatuses that are adapted to prevent premature deployment of the tractor, e.g., by including a tractor hold (e.g., a housing, a lock, a clamp, etc.) or the like to secure the outer end of the tractor against and/or relative to the elongate inversion support.

An endoscopic surgical clip applier includes an endoscopic assembly and a handle assembly. The handle assembly includes a housing, a trigger, a drive bar, and a ratchet assembly. The ratchet assembly includes a first rack, a second rack, a pawl housing engageable with the first rack, and a second pawl engageable with the second rack. In a first position, the pawl housing is in registration with the first rack to prohibit reversal of a direction of movement of the trigger until the pawl housing is disposed beyond a proximal end or a distal end of the first rack. In a second position, the pawl housing is out of registration with the first rack to permit reversal of the movement of the trigger after the second pawl is disposed distally beyond a distal end of the second rack or proximally beyond a proximal end of the second rack.