A connection mechanism and manufacturing method for a surgical instrument includes an inner shaft member that extends at least partially through an elongated shaft member of the instrument and defines proximal and distal ends and is selectively movable in a longitudinal direction with respect to the elongated shaft member and includes at least one aperture that extends partially along the longitudinal direction and disposed distally from the proximal end. The inner shaft member enables a drive collar member to slide on the inner shaft member and reciprocate along the longitudinal direction. A drive collar stop member slides on the inner shaft member and moves along the longitudinal direction. The drive collar stop member then moves in a direction relative to the longitudinal axis to engage the aperture and limit further longitudinal motion of the drive collar member. An inner shaft stop member limits movement of the inner shaft.

A surgical instrument operable to sever tissue includes a body assembly and a selectively coupleable end effector assembly. The end effector assembly may include a transmission assembly, an end effector, and a rotational knob operable to rotate the transmission assembly and the end effector. The body assembly includes a trigger and a casing having a distal aperture configured to receive a portion of the end effector assembly. First and second coupling mechanism portions cooperatively couple the end effector assembly to the body assembly for use. The coupling may mechanically and/or electrically couple the end effector assembly to the body assembly via various coupling mechanisms. For instance, a threaded slip nut may couple to threads within the body assembly. In one configuration, the end effector assembly may have locking tabs that rotate into rotational recesses in the body assembly. The locking tabs may include electrical contacts and/or optically perceivable indicators.

An endoscope treatment tool includes: a sheath; a clip unit; a biasing member arranged between a distal end part of the sheath and the clip unit; and a first rotation preventing part capable of preventing the clip unit from rotating relative to the distal end part of the sheath about a longitudinal axis. The clip unit includes: a clip body; a holding tube; and a second rotation preventing part capable of preventing the clip body from rotating relative to the holding tubes about the longitudinal axis. The biasing member biases the holding tube so as to separate from the distal end part of the sheath. When a proximal end part of the holding tube comes into contact with the distal end part of the sheath against the biasing force of the biasing member, the first rotation preventing part prevents the relative rotation of the clip unit.

A first catheter has a first lumen therealong, a first-catheter proximal portion, and a steerable first-catheter distal portion that is transluminally advanceable to the heart. A second catheter has second lumen therealong, a second-catheter proximal portion, and a steerable second-catheter distal portion. The second catheter extends through the first lumen, such that the second-catheter proximal portion extends proximally out from the first-catheter proximal portion, the second-catheter distal portion extends distally out from the first-catheter distal portion, and within at least the first-catheter proximal portion, the first lumen and the second lumen are coaxial on a longitudinal axis. A first handle is coupled to the first-catheter proximal portion, and extends obliquely away from the first-catheter proximal portion at a nonzero angle with respect to the longitudinal axis. A second handle is coupled to the second-catheter proximal portion, and is disposed proximally from the first handle. Other embodiments are also described.

A surgical instrument having a handle, elongate shaft protruding from handle and end-effector located at end of shaft is described. To allow for rotation of the end-effector the shaft is connected to a rotation wheel mounted on handle, towards rearward end of handle proximal to the user. The rotation wheel is in the form of a thumbwheel, having an ergonomically designed shape that tapers from distal direction to proximal direction, with angle of the taper matching angle of the outer surface of the handle. The outer tapered surface of the thumbwheel has a number of shaped cut-out or scalloped portions arranged around the outer circumference of the wheel, and arranged in use to receive the tip of a user's thumb to allow the user to rotate the wheel in order to set the rotational orientation of the end-effector. Such an arrangement provides a comfortable and easy to use instrument.

A surgical instrument includes a body assembly, a waveguide, a transducer, and a coupling assembly. In some versions the coupling assembly translates the transducer to couple the transducer to the waveguide. For instance, a gear having arcuate troughs may engage pins on the transducer and/or waveguide to mate the transducer to waveguide. A pawl may selectively engage and prevent rotation of the gear. Alternatively, lever arms may cam the transducer into the waveguide. The lever arms may selectively couple to a casing to prevent decoupling of the transducer and waveguide. In another configuration, a locking tab can be slid and locked into a slot to couple the transducer and waveguide. Further still, levers with self-locking pins may engage and couple the transducer to the waveguide. In another version, a rotatable body portion may engage a tab on the transducer to rotate and couple the transducer to the waveguide.

A surgical instrument that comprises an elongate shaft assembly that defines a shaft axis. A surgical end effector is pivotally coupled to the elongate shaft assembly for selective pivotal travel relative thereto about an articulation axis that is laterally offset from the shaft axis and extends transversely relative thereto. An end effector driver link is operably coupled to the surgical end effector and an articulation driver that is supported for longitudinal travel in distal and proximal directions upon application of articulation motions thereto. A flexible de-articulation member is coupled to the elongate shaft assembly and the surgical end effector to apply de-articulation motions to the surgical end effector.

Embodiments of a surgical instrument including an actuation lockout system as well as its method of use are disclosed. In one embodiment, a surgical instrument includes a trigger and a driveshaft coupled to the trigger such that actuation of the trigger causes the driveshaft to move from a first position to a second position, thereby resulting in deployment of a surgical fastener. An actuation lockout system restrains distal movement of the driveshaft until a force greater than or equal to a threshold force is applied to the trigger.

A surgical device includes a handle assembly, an adapter assembly configured to selectively couple to the handle assembly, an annular reload configured to selectively couple to a distal portion of the adapter assembly, and a shipping cap coupled to the annular reload and configured to detach from the annular reload in response to a movement of a trocar of the adapter assembly. The annular reload has a memory having stored therein information about the reload. The handle assembly includes a controller configured to encode to the memory an occurrence of a detachment of the shipping cap from the reload.

A laparoscopic dipping machine that is used to apply dips on tissue structures is enclosed in a housing and includes a pair of movable jaws mounted on a stem. Operational movement for clamping the dips is indirectly triggered by a movement of the handle. The clipping machine further includes at least one spring and a mechanism directly triggering the operational movement of the jaws having at least one pusher movably arranged in the axis of the stem supported in the axis of the stem on the spring. An adjustment mechanism adjusts the jaws output opening to at least two different positions adapted to at least two sizes of the dips, resulting in a different output angle between the jaws, wherein the adjustment mechanism includes a movable shutter element having at least two parts, the narrower part of the shutter element and the wider part of the shutter element