摘要:
This application presents minimally-obstructive and structurally-adjustable retractors for vaginal repairs, which afford an open work area of desirable size and enhanced visualization for a surgeon about the perineum and the posterior vaginal wall of the patient. The retractors may be lightweight and compact, and also configured and dimensioned to minimize slippage during use. The retractors may have occluders that may partially or substantially block or absorb fluids, for example, from or around the cervix. The retractors may incorporate built-in light sources. The retractors may retract the engorged labia of the postpartum patient as well as the vaginal walls. The retractor may also be used as a speculum.
摘要:
A surgical instrument and method for indicating that a cartridge has been fired includes an end effector receiving a cartridge having at least one of a knife and a plurality of staples, a shaft assembly connected to the end effector, and a handle assembly. The handle assembly has a handle housing, a firing member configured to selectively actuate from a first position to a second position as a firing stroke, and a feedback generator operatively connected to the firing member. The firing member is configured to actuate the cartridge from an unfired cartridge position to a fired cartridge position when the firing member is actuated. The feedback generator is configured to communicate an audible sound and a visual indicia to an operator indicative of the firing member completing the firing stroke for actuating the cartridge to the fired cartridge position.
摘要:
Rotational couplers for use with surgical devices that are actuated by semi-flexible actuators such as wires and the like. The couplers enable the actuators to apply various actuation motions to actuation features on the surgical device as well as other actuators to apply axial and rotational motions to the surgical device to manipulate the device into various orientations relative to an elongate shaft to which the device is movably attached.
摘要:
This application presents minimally-obstructive and structurally-adjustable retractors for vaginal repairs, which afford an open work area of desirable size and enhanced visualization for a surgeon about the perineum and the posterior vaginal wall of the patient. The retractors may be lightweight and compact, and also configured and dimensioned to minimize slippage during use. The retractors may have occluders that may partially or substantially block or absorb fluids, for example, from or around the cervix. The retractors may incorporate built-in light sources. The retractors may retract the engorged labia of the postpartum patient as well as the vaginal walls. The retractor may also be used as a speculum.
摘要:
A surgical device control assembly includes a control device operable to carry out at least two operational conditions of a surgical device and a button operatively connected to the control device. The button has a button-actuation direction in which the button actuates, an unactuated position at a rest point of the button, a first actuated position at first distance from the rest point in the button-actuation direction, and a second actuated position at a second distance further from the rest point in the button-actuation direction than the first distance. The first actuated position effects a first of the at least two operational conditions. The second actuated position effects a second of the at least two operational conditions different from the first operational condition.
摘要:
A surgical device control assembly includes a control device operable to carry out at least two operational conditions of a surgical device and a button operatively connected to the control device. The button has a button-actuation direction in which the button actuates, an unactuated position at a rest point of the button, a first actuated position at first distance from the rest point in the button-actuation direction, and a second actuated position at a second distance further from the rest point in the button-actuation direction than the first distance. The first actuated position effects a first of the at least two operational conditions. The second actuated position effects a second of the at least two operational conditions different from the first operational condition.
摘要:
A surgical device, comprising a control circuit operable to carry out at least two operational conditions of the surgical device, and a two-stage switch electrically connected to the control circuit, a first stage of the switch effecting a first of the at least two operational conditions and a second stage of the switch effecting a second of the at least two operational conditions that is different from the first operational condition, wherein the force required to sustain the first operational condition is less than the force required to enter the first operational condition and the force required to enter the second operational condition is greater than the force required to sustain the first operational condition.
摘要:
A self-powered surgical device, comprising a handle having a self-contained power supply and a control circuit operable to carry out at least two operational conditions of the surgical device; and a two-stage switch electrically connected to the control circuit, a first stage of the switch effecting a first of the at least two operational conditions and a second stage of the switch effecting a second of the at least two operational conditions that is different from the first operational condition, the two-stage switch having a variable resistance such that the first stage occurs when a first depression force is applied to the switch, the second stage occurs when a second depression force greater than the first depression force is applied to the switch, and a holding force lower than at least the second depression force is required to maintain the switch in the second stage.
摘要:
A vascular suturing device is disclosed which includes an elongated tubular body defining opposed proximal and distal end portions and having a longitudinal axis extending therethrough, the body including an inner tubular member, an outer tubular member and a central tubular member disposed between the inner and outer tubular members. The inner tubular member and the central tubular member are mounted for movement relative to the outer tubular member about the longitudinal axis of the body for sequentially driving a pair of suture needles through the wall of a blood vessel to close an incision formed therein. A vascular dilator having a tapered distal tip portion is supported within the inner tubular member and is dimensioned to extend beyond the distal end of the inner tubular member for positioning the suturing device at the incision in the wall of the blood vessel. The dilator is configured to direct blood flow from the distal portion of the dilator to a location remote from the blood vessel for observation to confirm the location of the device.
摘要:
The invention provides a method of using an apparatus for manipulating matter in a confined or inaccessible space, comprising providing an apparatus having manipulator means at least partly constructed of one or more bent or twisted elongate shape memory alloy members having pseudoelasticity at the intended manipulation temperature, and a hollow housing or cannula capable of holding at least the shape memory alloy member(s) in a relatively straightened state, and actuating means for extending the shape memory alloy member(s) from the housing to manipulate matter within the space and for withdrawing the shape memory alloy member(s) into the housing, the arrangement being such that the shape-memory alloy member(s) bend(s) or twist(s) pseudoelastically in a lateral or helical sense to manipulate the matter on extending from the housing at the manipulation temperature, and become(s) relatively straightened on withdrawal into the housing at the temperature.