Abstract: Springs for lockout assemblies, such as for single-use lockout assemblies implemented in reloadable cartridge assemblies of surgical staplers, and associated systems, devices, and methods are disclosed herein. In one embodiment, a spring includes (a) a hook portion at a first end portion of the spring opposite the second end of the spring, and (b) a loop portion. In an absence of external force applied to the spring, the loop portion can be generally positioned at a first side of the hook portion opposite the second end portion of the spring such that the hook portion is positioned generally along a plane positioned between the loop portion and the second end portion. In some embodiments, the spring is a leaf spring, includes a cutout extending at least partway between the hook portion and the second end portion, and/or includes a notch at the second end portion.

Abstract: The present disclosure is directed to a multidirectional apparatus that can be attached to a stapler reload apparatus. The multidirectional apparatus can include at least two articulation elements each comprising a cylindrical proximal end, a hemispherical distal end, a central lumen, a wall surrounding the central lumen, and a first pull wire lumen within the wall surrounding the central lumen, wherein the hemispherical distal end of a first articulation element of the at least two articulation elements is nested in the cylindrical proximal end of a second articulation element of the at least two articulation elements and a first pull wire positioned within the first pull wire lumen, and wherein tension applied to the first pull wire causes the second articulation element to move away from a longitudinal axis of the at least two articulation elements in a direction of the first pull wire which is experiencing the tension.

Abstract: The present disclosure includes a surgical buttress or reinforcement for a surgical stapler assembly. The surgical stapler includes an anvil with a tissue contacting surface and a staple cartridge with a tissue contacting surface. The surgical buttress, in either one or two pieces, is releasably secured to the tissue contacting surfaces. The staples are delivered through the surgical buttress to provide a reinforcement for the staples.

Abstract: The present disclosure includes apparatuses for a motorized surgical handle assembly. An example apparatus includes a non-movable handle, a movable handle configured to be moved away from and into proximity with the non-movable handle, wherein the movable handle comprises a locking protrusion, a selector lever configured to rotate between a locked position and an unlocked position, and a selector cam coupled to the selector lever, wherein the selector cam comprises a surface with a concave locking opening, and wherein the selector cam is configured to rotate in response to the selector lever rotating, wherein, when the movable handle is in proximity with the non-movable handle and the selector lever is in the unlocked position, the surface with the concave locking opening is positioned adjacent to the locking protrusion to lock the movable handle in place.

Abstract: The present disclosure includes apparatuses for a surgical handle assembly. An example apparatus includes a reloadable cartridge assembly and a surgical handle assembly including an articulation assembly configured to maintain the reloadable cartridge assembly in a first operation position, the articulation assembly comprising a knob in a first position, a lock core coupled to the knob, a housing, a first roller and a second roller, and a first spring, wherein the first roller is positioned on a first end of the first spring and the second roller is positioned on a second end of the first spring, and wherein the first spring is configured to bias the first roller and the second roller between the lock core and the housing to maintain the knob in the first position.

Abstract: The present disclosure includes apparatuses for a surgical reloadable cartridge assembly. An example apparatus includes a lock slider and a blade lock configured to actuate radially between a first position that locks a blade in a secure position and a second position that allows the blade to move longitudinally.

Abstract: The present disclosure includes apparatuses for a surgical handle assembly. An example apparatus includes a reloadable cartridge assembly and a surgical handle assembly including a spring positioned in the surgical handle assembly at a proximal end of a toothed rack. Proximal movement of the toothed rack causes the spring to be compressed and allows for complete opening of the reloadable cartridge assembly.

Abstract: The present disclosure includes apparatuses for a surgical handle assembly. An example apparatus includes a toothed rack, a movable handle member, a driving pawl configured to engage the toothed rack and advance the toothed rack in a linear distal direction in response to a movable handle member advancing in a proximal direction and a latch configured to engage the toothed rack and advance the toothed rack in a linear proximal direction in response to the movable handle member advancing in a distal direction.

Abstract: Safety control algorithms for surgical devices, including safety control algorithms for surgical stapler devices, and associated systems, devices, and methods. In one embodiment, a method of operating a surgical stapler comprises tracking a position of a distal end of a blade assembly of a reloadable cartridge assembly of the surgical stapler as the distal end of the blade assembly is moved, via actuation of a motor and a corresponding drivetrain, along a stroke of the blade assembly. The method can further comprise adjusting a current limit for current levels in the drivetrain based on the position of the distal end of the blade assembly along the stroke.

Abstract: The present disclosure includes apparatuses for a motorized surgical handle assembly. An example apparatus includes a non-movable handle, a movable handle, a drive assembly, a drivetrain, a sensor, and a controller. The movable handle is movably coupled to the non-movable handle. The drivetrain is operably coupled to the movable handle and configured to move the drive assembly. The sensor is configured to obtain a measurement corresponding to at least one of a position or orientation of the movable handle. The controller is operably coupled to the drivetrain and the sensor, and configured to (i) determine, based at least in part on the measurement, that the movable handle has moved away from the non-movable handle by at least a threshold amount, and (ii) operate the drivetrain based at least in part on the determination to move the movable handle.

Abstract: The present disclosure includes apparatuses for a surgical handle assembly. An example apparatus includes a reloadable cartridge assembly and a surgical handle assembly including a spring positioned in the surgical handle assembly at a proximal end of a toothed rack. Proximal movement of the toothed rack causes the spring to be compressed and allows for complete opening of the reloadable cartridge assembly.

Abstract: The present disclosure includes an extender for a surgical stapler. An example extender includes a proximal end configured to removably couple to a surgical handle assembly, a distal end configured to removably coupled to a reloadable cartridge assembly, and an extender drive rod configured to transfer power from the surgical handle assembly to the reloadable cartridge assembly.

Abstract: A mechanical interface connecting a biological body segment, such as a limb, portion of a limb or other body segment, to a wearable device such as a prosthetic, orthotic or exoskeletal device, is fabricated by quantitatively mapping a characterized representation of the body segment to form a digital representation of the mechanical interface shape and mechanical interface impedance. The mechanical interface includes a continuous socket defining a contoured inside surface and a contoured outside surface, and includes a material having an intrinsic impedance that varies through the material, so that the intrinsic impedance varies along the contoured inside surface.

Abstract: The present disclosure includes an extender for a surgical stapler. An example extender includes a proximal end configured to removably couple to a surgical handle assembly, a distal end configured to removably coupled to a reloadable cartridge assembly, and an extender drive rod configured to transfer power from the surgical handle assembly to the reloadable cartridge assembly.

Abstract: The present disclosure is directed to a multidirectional apparatus that can be attached to a stapler reload apparatus. The multidirectional apparatus can include at least two articulation elements each comprising a cylindrical proximal end, a hemispherical distal end, a central lumen, a wall surrounding the central lumen, and a first pull wire lumen within the wall surrounding the central lumen, wherein the hemispherical distal end of a first articulation element of the at least two articulation elements is nested in the cylindrical proximal end of a second articulation element of the at least two articulation elements and a first pull wire positioned within the first pull wire lumen, and wherein tension applied to the first pull wire causes the second articulation element to move away from a longitudinal axis of the at least two articulation elements in a direction of the first pull wire which is experiencing the tension.

Abstract: The present disclosure includes a surgical buttress or reinforcement for a surgical stapler assembly. The surgical stapler includes an anvil with a tissue contacting surface and a staple cartridge with a tissue contacting surface. The surgical buttress, in either one or two pieces, is releasably secured to the tissue contacting surfaces. The staples are delivered through the surgical buttress to provide a reinforcement for the staples.

Abstract: The present disclosure includes apparatuses for a motorized surgical handle assembly. An example apparatus includes a non-movable handle, a movable handle configured to be moved away from and into proximity with the non-movable handle, wherein the movable handle comprises a locking protrusion, a selector lever configured to rotate between a locked position and an unlocked position, and a selector cam coupled to the selector lever, wherein the selector cam comprises a surface with a concave locking opening, and wherein the selector cam is configured to rotate in response to the selector lever rotating, wherein, when the movable handle is in proximity with the non-movable handle and the selector lever is in the unlocked position, the surface with the concave locking opening is positioned adjacent to the locking protrusion to lock the movable handle in place.

Abstract: A mechanical interface connecting a biological body segment, such as a limb, portion of a limb or other body segment, to a wearable device such as a prosthetic, orthotic or exoskeletal device, is fabricated by quantitatively mapping a characterized representation of the body segment to form a digital representation of the mechanical interface shape and mechanical interface impedance. The mechanical interface includes a continuous socket defining a contoured inside surface and a contoured outside surface, and includes a material having an intrinsic impedance that varies through the material, so that the intrinsic impedance varies along the contoured inside surface.

Abstract: The present disclosure includes apparatuses for a surgical handle assembly. An example apparatus includes a reloadable cartridge assembly and a surgical handle assembly including an articulation assembly configured to maintain the reloadable cartridge assembly in a first operation position, the articulation assembly comprising a knob in a first position, a lock core coupled to the knob, a housing, a first roller and a second roller, and a first spring, wherein the first roller is positioned on a first end of the first spring and the second roller is positioned on a second end of the first spring, and wherein the first spring is configured to bias the first roller and the second roller between the lock core and the housing to maintain the knob in the first position.

Abstract: The present disclosure includes apparatuses for a reloadable cartridge assembly. An example apparatus includes a first elongated member including a staple cartridge configured to eject a number of staples and a second elongated member pivotally coupled to the first elongated member, wherein the second elongated member includes a number of pockets configured to receive and form the number of staples ejected from the staple cartridge, and wherein a furthest distal pocket of the number of pockets is less than 6 millimeters (mm) from a distal end of the second elongated member.