Abstract: Forceps including a frame and a motion transfer assembly to transfer forces from or more actuators to an end effector. The motion transfer assembly can include a body having a passageway, a drive shaft extending through the passageway, and a drive link. The body and the drive shaft slidable with respect to the frame, and the body rotationally fixed to the drive shaft to transfer a rotational input received from a first actuator into a rotational motion of the drive shaft relative to the frame. The drive link operably coupled to the frame and the body to transfer a force received from a second actuator into a linear motion of the body and the drive shaft relative to the frame.

Abstract: A system for reconciling instruments in an operating room with sterile instrument ingress and egress staging zones, in which each zone is equipped with an imaging device for machine vision, bar code reading, or the like. The system utilizes a process for classifying and counting instruments based on imaging device data, and may include a graphical user interface with separate interface devices for sterile and non-sterile personnel. An active and real-time reconciliation log may be provided to track instruments and resources still in the sterile field, and hence at risk of remaining in a patient's wound. A subsequent egress sub-stage analysis for counting instruments used versus not used in the procedure may be performed and the results thereof aggregated to generate or update a predictive model to anticipate the likely instruments and other resources needed for future surgical procedures of the same type, facilitating efficient instrument selection and preparation.

Abstract: A surgical forceps can include an outer shaft, a first jaw, a second jaw, and an inner shaft. The first jaw can include a first flange and a second flange. The first jaw can be pivotably coupled to the outer shaft. The second jaw can include a third flange and a fourth flange. The third flange can be welded to the outer shaft and the fourth flange can be welded to the outer shaft. The inner shaft can be engaged with the first flange and the second flange. The inner shaft can be movable with respect to the outer shaft, the third flange, and the fourth flange to move the first jaw between an open position and a closed position.

Abstract: A medical device such as a surgical forceps is usable with at least two different jaw forces. The device can include a longitudinal shaft, having a proximal portion and a distal portion. An end effector can be attached to and can extend from the distal portion. A compressible member can be aligned with the longitudinal shaft. The compressible member can be configured for applying a variable maximum bias force for communication to the end effector. An end-user-positionable seat can be located against a first end of the compressible member. The seat can be actuatable by the end-user for varying the variable maximum bias force.

Abstract: A medical device such as a surgical forceps is usable with at least two different jaw forces. The device can include a longitudinal shaft, having a proximal portion and a distal portion. An end effector can be attached to and can extend from the distal portion. A compressible member can be aligned with the longitudinal shaft. The compressible member can be configured for applying a variable maximum bias force for communication to the end effector. An end-user-positionable seat can be located against a first end of the compressible member. The seat can be actuatable by the end-user for varying the variable maximum bias force.

Abstract: A surgical forceps can include an outer shaft, a first jaw, a second jaw, and an inner shaft. The first jaw can include a first flange and a second flange. The first jaw can be pivotably coupled to the outer shaft. The second jaw can include a third flange and a fourth flange. The third flange can be welded to the outer shaft and the fourth flange can be welded to the outer shaft. The inner shaft can be engaged with the first flange and the second flange. The inner shaft can be movable with respect to the outer shaft, the third flange, and the fourth flange to move the first jaw between an open position and a closed position.

Abstract: Systems, methods, and computer program products for generating and displaying angiography images from multiple machine learning models that provide different sensitivity and specificity performance in the segmentation of vascular structures in an angiogram. A graphical user interface with control elements provides user control over the mixture of the multiple machine learning models and other settings, including an a pseudo brightness control and a zoom control. The displayed angiogram image is based on the settings of the control elements, and adjusts in response to changes thereto. The pseudo brightness control controls the mixture of the high specificity model versus the high sensitivity model in the displayed image. The zoom control modifies the magnification of the displayed image and increases the proportional mixture of the high sensitivity model in the displayed image.

Abstract: Forceps including a frame and a motion transfer assembly to transfer forces from or more actuators to an end effector. The motion transfer assembly can include a body having a passageway, a drive shaft extending through the passageway, and a drive link. The body and the drive shaft slidable with respect to the frame, and the body rotationally fixed to the drive shaft to transfer a rotational input received from a first actuator into a rotational motion of the drive shaft relative to the frame. The drive link operably coupled to the frame and the body to transfer a force received from a second actuator into a linear motion of the body and the drive shaft relative to the frame.

Abstract: An angiogram is a study of blood vessels where an angiographic chemical contrast agent is injected while a sequence of images (typically x-rays) are obtained. The contrast pattern on the sequence of images provides information about the vascular anatomy and physiology. The discovery that contrast in blood vessels varies at cardiac frequency in magnitude and phase, which may be visualized as a spatiotemporal reconstruction of cardiac frequency angiographic phenomena, enables a set of processes for increasing the signal to noise ratio or equivalently the informational content of an angiogram. In this invention, the organization of cardiac frequency magnitude and phase enables equivalent information on anatomy and physiology to be obtained with less dose of injected chemical contrast agent, less x-ray dose, and/or less navigation of the injecting catheter within blood vessels.

Abstract: Forceps including a housing, a first body, a second body and a drive shaft. The first body has a passageway extending therethrough. The drive shaft extending through the passageway and connected to the first body such that the first body and the drive shaft are slidable with respect to the housing to drive jaws located at a distal portion of the drive shaft between an open position and a closed position. The second body having a second passageway. The drive shaft extending through the second passageway such that the second body is guided by the drive shaft and is slidable relative to the first body and the drive shaft to displace a blade shaft between a retracted position and an extended position.

Abstract: Methods, systems, and computer readable media are provided for reduced-dose angiography using machine learning (e.g., deep learning) with a concordance metric indicating a degree of similarity between an estimated segmentation of angiographic images generated by a machine learning model and segmented benchmark angiographic images provided as inputs to the machine learning model. Briefly, techniques described herein may use a neural network trained to conserve/preserve angiographic image quality while reducing the angiographic dose of potentially harmful chemical contrast and/or x-ray radiation by employing a concordance metric.

Abstract: Medical devices for operating an end effector including a housing, a drive shaft, a drive body and a drive link. The drive shaft is moveable relative to the housing to actuate the end effector. The drive body is operably coupled to the drive shaft. The drive body includes a proximal collar and a distal collar. The drive link includes a proximal cam surface and distal cam surface, and the drive link is operatively coupled to the housing and actuatable to translate the drive shaft with respect to the housing. The proximal cam surface is configured to interface with the proximal collar when the drive link displaces proximally to translate the drive body in a proximal direction, and the distal cam surface is configured to interface with the distal collar when the drive link displaces distally to translate the drive shaft in a distal direction.

Abstract: Methods and systems are provided for extracting cardiac frequency angiographic phenomena for an unconstrained vascular object from an angiographic study. In one example, a computer may obtain a series of angiographic image frames obtained at a rate faster than cardiac frequency. Each image frame may comprise a plurality of pixels, and each pixel may have a corresponding intensity. The computer may apply an optical flow technique to the angiographic image frames to generate a plurality of paths corresponding to a displacement of respective pixels from image frame to image frame. The computer may further generate a spatiotemporal reconstruction of cardiac frequency angiographic phenomena based on the plurality of paths and the corresponding intensities associated with respective pixels of the paths, and output for display the spatiotemporal reconstruction of cardiac frequency angiographic phenomena in one or more images.

Abstract: An electrosurgical device comprising: (a) a stylet including: (i) a first jaw; (ii) a second jaw that is movable relative to the first jaw from a first position where the first jaw and the second jaw are open to a second position where the first jaw and the second jaw move towards each other to grasp tissue therebetween; and (iii) one or more jaw support rods connected to the first jaw, the second jaw, or both; and (b) a housing connected to the stylet and the stylet extending from the housing, the housing including: (i) an operable mechanism including: (1) a fourth link; (2) a second link; (3) a first link being connected to the fourth link via a first pivot and being rotatable relative to the first pivot, and connected to the second link at a second pivot so that movement of the first link moves the second link relative to the fourth link; and (4) a third link being connected to the second link at a third pivot so that movement of the second link moves the third link, and the fourth link being connected to

Abstract: Medical devices for operating an end effector including a housing, a drive shaft, a drive body and a drive link. The drive shaft is moveable relative to the housing to actuate the end effector. The drive body is operably coupled to the drive shaft. The drive body includes a proximal collar and a distal collar. The drive link includes a proximal cam surface and distal cam surface, and the drive link is operatively coupled to the housing and actuatable to translate the drive shaft with respect to the housing. The proximal cam surface is configured to interface with the proximal collar when the drive link displaces proximally to translate the drive body in a proximal direction, and the distal cam surface is configured to interface with the distal collar when the drive link displaces distally to translate the drive shaft in a distal direction.

Abstract: An angiogram is a study of blood vessels where an angiographic chemical contrast agent is injected while a sequence of images (typically x-rays) are obtained. The contrast pattern on the sequence of images provides information about the vascular anatomy and physiology. The discovery that contrast in blood vessels varies at cardiac frequency in magnitude and phase, which may be visualized as a spatiotemporal reconstruction of cardiac frequency angiographic phenomena, enables a set of processes for increasing the signal to noise ratio or equivalently the informational content of an angiogram. In this invention, the organization of cardiac frequency magnitude and phase enables equivalent information on anatomy and physiology to be obtained with less dose of injected chemical contrast agent, less x-ray dose, and/or less navigation of the injecting catheter within blood vessels.

Abstract: Medical devices, such as forceps including a handpiece having a housing and an inner shaft that extends out of the handpiece along a longitudinal axis to transfer motion to an end effector. The inner shaft being rotatable with respect to the handpiece. An outer shaft that is rotatable with respect to the housing is loated around the inner shaft. The medical device further including an end effector coupled to the inner shaft and the outer shaft. The outer shaft rotationally constrained to the inner shaft at a first longitudinal location and at a second longitudinal location.

Abstract: Medical devices, such as forceps including a handpiece having a housing and an inner shaft that extends out of the handpiece along a longitudinal axis to transfer motion to an end effector. The inner shaft being rotatable with respect to the handpiece. An outer shaft that is rotatable with respect to the housing is boated around the inner shaft. The medical device further including an end effector coupled to the inner shaft and the outer shaft. The outer shaft rotationally constrained to the inner shaft at a first longitudinal location and at a second longitudinal location.

Abstract: An angiogram is a study of blood vessels where an angiographic chemical contrast agent is injected while a sequence of images (typically x-rays) are obtained. The contrast pattern on the sequence of images provides information about the vascular anatomy and physiology. The discovery that contrast in blood vessels varies at cardiac frequency in magnitude and phase, which may be visualized as a spatiotemporal reconstruction of cardiac frequency angiographic phenomena, enables a set of processes for increasing the signal to noise ratio or equivalently the informational content of an angiogram. In this invention, the organization of cardiac frequency magnitude and phase enables equivalent information on anatomy and physiology to be obtained with less dose of injected chemical contrast agent, less x-ray dose, and/or less navigation of the injecting catheter within blood vessels.

Abstract: Methods and systems are provided for measuring a vessel in a body. In one example, a computer obtains at least one angiographic image frame. The computer identifies pixels corresponding to a vessel of a body in the at least one angiographic image frame. The computer further identifies a medial axis of the vessel, and determines a measurement of the vessel in the at least one angiographic image frame by counting pixels in a transverse direction relative to the medial axis of the vessel and converting the dimension in pixels to a dimension in units of size.