Abstract: A breast support platform for an x-ray imaging system includes a housing having a compression plate and a front wall, and a heating system disposed at least partially within the housing. The heating system is configured to heat at least a portion of the compression plate, at least a portion of the front wall, or at least a portion of the compression plate and the front wall. In an example, the heating system includes a transparent conducting film coupled to an inner surface of the housing. In another example, the heating system includes a blower disposed at least partially within the housing, and the blower is configured to channel hot air across an inner surface of the housing.

Abstract: A method is for compression of breast tissue arranged between a paddle and a stage of a compression system for a mammography examination. The method includes generating a first compression of the breast tissue by building up a reference compression force by adjusting the paddle relative to the stage; comparing the first compression with a target compression; and adjusting the first compression to the target compression, the adjusting including exertion of a manual force on the paddle.

Abstract: Methods and systems are provided for dynamic collimation adjustment during various x-ray imaging and image-guided procedures. In one example, collimation for an x-ray mammography system is adjusted based on a volume of interest, and further based on a workflow step of an imaging procedure. As an example, prior to a target selection, collimation may be adjusted to irradiate a larger volume of interest and x-ray system acquisition parameters, and hence, a greater area of a detector is irradiated; and after target coordinates are selected (e.g., for an interventional procedure), collimation may be adjusted to irradiate a reduced volume of interest based on the selected target and x-ray system acquisition parameters, and hence, a smaller area of detector is irradiated.

Abstract: Various methods and systems are provided for tracking a biopsy target across one or more images. In one example, a method includes determining a position of a biopsy target in a selected image of a patient based on an image registration process with a reference image of the patient, and displaying a graphical representation of the position of the biopsy target on the selected image.

Abstract: The radiation detector includes a sensor substrate and a reinforcing substrate. In the sensor substrate, a plurality of pixels for accumulating the charges generated according to light converted from radiation are formed in the pixel region on the first surface of the flexible base material, and the terminal for electrically connecting a flexible cable to the first surface is provided. The reinforcing substrate is provided on the second surface opposite to the first surface of the base material in a region excluding at least the facing region facing the terminal to reinforce the stiffness of the base material.

Abstract: The present disclosure relates to a system for imaging. The system may include a supporting assembly and a detector assembly. The supporting assembly may include a detection region to accommodate a subject. The detector assembly may surround the detection region. The detector assembly may be configured to detect radiation rays emitted from the subject located within the detection region. The detector assembly may include a plurality of detector rings. Each detector ring may include a scintillator array and a plurality of photosensors. The plurality of detector rings may be arranged on the supporting assembly in an axial direction of the supporting assembly to form an axial field of view (FOV) having a length no less than 0.75 meters.

Abstract: A detector used for tomography imaging is mobile, allowing the detector to move about an object (e.g., patient to be imaged). A swarm of such detectors, such as a swarm of drones with detectors, may be used for tomography imaging. The trajectory or trajectories of the mobile detectors may account for the pose and/or movement of the object being imaged. The trajectory or trajectories may be based, in part, on the sampling for desired tomography. An image of an internal region of the object is reconstructed from detected signals of the mobile detectors using tomography.

Abstract: An imaging gantry is provided that includes a C-arm having a detector mounted within the diameter of the C-arm at one end, and an X-ray tube mounted to the opposite end of the C-arm. The detector includes a retractable detector arm that is pivotally mounted to the C-arm at one end and has the detector mounted to the retractable detector arm opposite the C-arm. The detector is secured to a support plate that is attached to the planetary drive mechanism on the detector arm, such that the support plate swivels with the planetary drive mechanism to maintain the alignment of the support plate and detector relative to the X-ray tube. The detector arm also includes a lateral compensation mechanism disposed on the detector arm and engaged with the detector that operates in synchronization with the motor pivoting the detector arm to laterally displace the detector in order to maintain the alignment of the detector with the X-ray tube.

Abstract: The present disclosure relates to systems and methods for positioning a region of interest (ROI). The systems may obtain an image of an object captured by an imaging device. The systems may extract image information of the image. The systems may obtain feature information of a region of interest (ROI) in the object. The systems may determine position information of the ROI in the image using a positioning model based on the image information of the image and the feature information of the ROI.

Abstract: Methods and systems are provided for cross calibration between two or more dual energy x-ray absorptiometry (DXA) systems. In one example, a calibration phantom is scanned along with a patient during a scanning sequence, with a first system, to obtain one or more coefficients that map pixel values retrieved from a phantom image from the phantom scan to image pixel values in the reconstructed patient image from the patient scan. The one or more coefficients may be utilized to adjust and/or compare BMD values of the patient obtained when the patient is scanned with a different system utilizing a phantom with similar composition and parameters as the calibration phantom.

Abstract: To appropriately assess lifestyle relating to metabolic syndrome. An ultrasonic probe captures an image of an abdomen of a subject and outputs a tomographic image of the abdomen. A feature assessing unit includes a learning model and a measuring unit, and outputs assessment index data indicating respective features of at least a subcutaneous fat layer, a visceral fat layer and right and left rectus abdominis muscle among living body portions visualized in the tomographic image. A measure presenting unit selectively presents one of a plurality of measure patterns obtained by systematically classifying measures concerning lifestyle, in accordance with the assessment index data.

Abstract: A method for evaluating mechanical anisotropy of a material sample to determine a characteristic of the sample includes interrogating a material sample a plurality of times. Each interrogation includes: applying a force having a direction, having a coronal plane normal to the direction of the force, and having an oval or other profile with long and short axes within the coronal plane, the long axis being oriented at a specified angle from a reference direction within the coronal plane; and measuring displacement of the material sample resulting from application of the force. The interrogations are taken at different angles of orientation within the coronal plane and different portions of the material sample are interrogated. For each measurement one or more parameters are calculated for the respective angle of orientation. A degree of anisotropy of the one or more parameters is determined and used to evaluate a characteristic of the material sample.

Abstract: A system for highlighting an instrument in an image includes a probe (122) for transmitting and receiving ultrasonic energy to and from a volume and a marker device (120) configured to respond to a received ultrasonic signal and emit an ultrasonic signal after a delay. The ultrasonic signal includes one or more pulses configured to generate a marker, when rendered, of a given size at a position within an image. A medical instrument (102) is disposed in the volume and includes the marker device. A control module (124) is stored in memory and is configured to interpret the ultrasonic energy received from the probe and from the marker device to determine a three dimensional location of the medical instrument and to highlight the three dimensional location of the marker device with the marker in the image.

Abstract: A controller (260) for identifying rotation of an interventional medical device (252) includes a memory that stores instructions and a processor that executes the instructions. When executed by the processor, the instructions cause the controller (260) to execute a process that includes receiving (S410) a first signal emitted from the interventional medical device (252) and corresponding to a first predetermined direction relative to the interventional interventional medical device (252) relative to a fixed rotation.

Abstract: Ultrasound image devices, systems, and methods are provided. An ultrasound imaging system comprising a communication interface in communication with an ultrasound imaging device and configured to receive a ultrasound image of a subject's anatomy; and a processor in communication with the communication interface and configured to apply a predictive network to the ultrasound image to identify a plurality of locations of potential malignancies in the subjects anatomy; and determine a plurality of malignancy likelihoods at the plurality of locations of potential malignancies; and output, to a display in communication with the processor, the plurality of locations of potential malignancies and the plurality of malignancy likelihoods for the plurality of locations of potential malignancies to guide a biopsy determination for the subjects anatomy.

Abstract: The present disclosure describes systems and methods configured to determine shear wave velocity and tissue stiffness levels of thin tissue of finite size, also referred to as bounded tissue, via shear wave elastography. Systems can include an ultrasound transducer configured to acquire echoes responsive to pulses transmitted toward a tissue. Systems can also transmit a push pulse into the tissue for generating shear waves, and tracking pulses intersecting the shear waves. The system can also apply a directional filter to received echo data and generate directionally filtered shear wave data based on a dimension and angular orientation of the bounded target relative to the ultrasound transducer. The system can estimate velocities of the shear waves at different shear wave frequencies based on the filtered shear wave data and angular orientation relative to the transducer, and determine a tissue stiffness value independent of the shape or form of the tissue.

Abstract: A track-based scanning system uses an ultrasound probe that is mechanically guided through incremental scans over an area of interest. The scanning system can be configured for different patient applications using interchangeable track stands. Two-dimensional scan data and probe position information are fed back to a base unit for processing and assembly of a three-dimensional (3D) shape model. 3D abdominal aorta segmentation and other type of analysis may be performed based on a 3D vascular shape model and an intensity model.

Abstract: Disclosed herein are systems and methods for visualizing a target anatomy of a patient in preparation of a medical procedure. A system can have transducers defining a grid to collect data about the target anatomy. A user interface (22014) can be disposed on area of the system to visualize the target anatomy. The visualization can include a virtual representation (22016) formed by an imager processor based on the data collected by the transducers. The method can include positioning the visualization device at an orientation where the transducers face the target anatomy. The method can further include adjusting the position of the visualization device to a target anatomy displayed on the virtual representation. The method can further include directing a medical instrument towards a target displayed on the virtual representation.

Abstract: Artificial intelligence (AI) recognition of echocardiogram (echo) images by a mobile ultrasound device comprises receiving a plurality of the echo images captured by the ultrasound device, the ultrasound device including a display and a user interface (UI) that displays the echo images to a user, the echo images comprising 2D images and Doppler modality images of a heart. One or more neural networks process the echo images to automatically classify the echo images by view type. The view type of the echo images is simultaneously displayed in the UI of the ultrasound device along with the echo images. A report is generated showing the calculated measurements of features in the echo images. The report showing the calculated measurements is displayed on a display device.

Abstract: An embodiment of the invention provides a method to measure fluid within a body cavity where data is received with an interface 210, the data being received from an ultrasound transducer. A three-dimensional sonographic image is generated with an image generator 220 connected to the interface 210, the three-dimensional sonographic image being generated from the data received from the ultrasound transducer. The body cavity is identified in the three-dimensional sonographic image with an image processor 230 connected to the image generator 220; and, an area of fluid in the body cavity in the three-dimensional sonographic image is identified with the image processor 230. The volume of the area of fluid is calculated using the three-dimensional sonographic image and a stacked crescents process, a spherical fill process, a convex hull process, and/or a triangulation process.

Abstract: A system and method for non-invasive medical imaging based measurement and calculation of the cardiovascular pressure is presented, wherein the pressure measurements are performed by means of the image stream processing estimating the volumes of the oscillating traceable regions within the body. The invention is applicable to any part of the body transparent for imaging device capable to produce real-time image series. The image series is then processed to obtain the pressure values within the cardiovascular system. The invention permits to assess non-invasively and in real time the pressure in any part of the heart and large blood vessels, and calculate the major markers of heart failure, cardiomyopathy, ventricular ischemia, infarction and other heart related diseases.

Abstract: A female urinary diagnostic device including a urine stream collection container having a discharge opening and a stream collection opening, the stream collection opening being configured to surround and isolate a urethral opening, a probe guide passage configured for interior engagement with a vaginal opening for placement of the stream collection opening relative to the urethral opening, and an internal baffle that defines an interior wall of the urine stream collection container that provides a spillway from the stream collection opening to the discharge opening and cooperates with at least a urine sensing device, where the spillway provides urine passage to the urine sensing device and a collection tank, wherein the internal baffle forms at least a portion of the probe guide passage and defines a sounding probe guide surface that positions a sounding probe within the vaginal opening.

Abstract: It is disclosed a System for sampling tissue from an ear of an animal including: —a male component (2) including a detachable sample collecting part (2b), comprising a cavity (2c) for collecting the sample and a cutting edge (2a) at an aperture of the cavity (2c) for cutting the sample from the animal ear; and —a tissue sample container (3) including a container component (30) for receiving the sample collecting part (2b) and the tissue sampled, the container component (30) having an opening (30b) closed by a sealed membrane or a cover (30d).

Abstract: An elongate assembly for use with an endoscopic surgical device including manual, mechanical and/or electromechanical surgical tack appliers, surgical clip appliers, surgical staplers, surgical stitching devices and the like, has an elongate assembly including a selectively adjustable telescopic shaft. The telescopic shaft is transitionable between an extended configuration and a retracted configuration, in which, the entire telescopic shaft is disposed within a handle assembly of the endoscopic surgical device.

Abstract: The present disclosure provides collapsible medical devices that may be introduced via a delivery device into a pre-existing patent foramen ovale or trans-septal puncture hole and left in place to provide both a sealing function on the atrial wall and a septal-access function for additional procedures. The disclosed medical devices include a penetrable and re-sealable gasket material disposed in an open lumen in the medical device. This penetrable and re-sealable material allows catheters or other medical devices to pass therethough for providing additional therapy to an individual. By allowing the access point or portal to be opened by a guidewire or another medical tool, the medical devices as disclosed herein may be particularly suitable for a variety of cardiac procedures including, for example, atrial fibrillation, mitral valve replacement or repair, left atrial appendage closures, and the like.

Abstract: A method of puncturing from an aorta into a left atrium using a puncturing device. The method involves a step of accessing a carotid artery and advancing a puncturing device through the carotid artery into an aorta. Advancing a sheath and a dilator over the puncturing device through the carotid artery and into the aorta such that a puncturing tip of the puncturing device is aligned with a distal tip of the sheath and a distal tip of the dilator, forming a puncturing assembly. Positioning the puncturing assembly at a target site within the aorta to gain access to a left atrium of a heart. Tenting a tissue between the aorta and the left atrium using the puncturing assembly. Creating a puncture through the tissue by advancing the puncturing device such that a channel between the aorta and the left atrium is formed.

Abstract: An orientable intravascular device having a “twelve o'clock” marker on a proximal and distal end for treating an aneurysm, including a packaging catheter with an identical fixed non-round shaped inner lumen, a pusher wire having an occlusion device releasably disposed on the distal end of said pusher wire, preloaded at a fixed circumferential orientation, with corresponding markers on the outside of said packaging catheter, a hub having an inner lumen that is shaped to marry with the outer lumen of the packaging catheter to deliver a delivery wire and occlusion stent in a predicted orientation, and maintaining such orientation as the wire and stent are advanced through said delivery catheter, and while said delivery catheter is withdrawn. Methods of using same are disclosed.

Abstract: A drug supply device for supplying drug to a living body surface that includes a shaft and a drug holding sheet attached to the distal end of the shaft. The drug holding sheet has a first face that faces distally and a second face opposite the first face that faces proximally when the drug holding sheet is expanded. The drug holding sheet includes folded portions that fold such that the first face is positioned to face radially inward while exposing the second face to an outside environment when the drug holding sheet is in a folded state. A drug is applied on the first face of the drug holding sheet. The drug supply device includes an expandable member on the second face of the drug holding sheet. The expandable member is expandable to cause the drug holding sheet to expand from the folded state into the expanded state.

Abstract: A dual-blade retractor comprising a handle having a first end and a second end, a first blade extending from the first end of the handle, a second blade extending from the second end of the handle, and an illumination assembly including (a) one or more first direct light sources provided on the first blade and (b) one or more second direct light sources provided on the second blade, wherein the dual-blade retractor is configured to house therein an internal power source for supplying energy to the one or more first and second direct light sources.

Abstract: Provided is an orogastric tube guide that can be used to accurately and quickly place an orogastric tube into the esophagus of a subject. In some embodiments, the orogastric tube guide is placed into the mouth of the subject after the subject has been intubated with an endotracheal tube. When placed in the midline of the subject's mouth, the disclosed orogastric tube guide aims placement of an orogastric tube towards the subject's esophagus. The orogastric tube guide also optionally contains a bite block to prevent a patient's teeth from clamping down on an endotracheal tube. The orogastric tube guide also optionally contains ports that can be attached to air tubing for providing supplemental oxygen after endotracheal extubation, thereby avoiding the need for nasal cannula.

Abstract: A suture and button construct, having an oblong button defining at least a first aperture and a second aperture; a suture length, including a braid defining a lumen and having a middle section and two end sections, each extending through a button aperture and both terminating in an end. Both ends have a needle attached. Also, two shuttles are engaged to the suture length, each having a free end and a loop end, terminating in a loop. Each shuttle enters the lumen in the middle section and extend through an aperture, while in the lumen and exit on the opposite button side from the middle section, so that both shuttle loops are available outside the lumen, to pull a suture end through the lumen and a button aperture.

Abstract: Guide tools for installation of fixation devices. At least one example embodiment includes: a delivery tube, the delivery tube defines a slot that runs from the distal end to the proximal end; a guide tube coupled to the delivery tube; and a handle coupled to the proximal end of the delivery tube and coupled to the proximal end of the guide tube. The handle may include a first channel into an interior of the delivery tube through the slot, and a receptacle in operational relationship to the delivery tube and the first channel.

Abstract: A laparoscopic device with suture cutter includes a tubular housing having first, second, and third channels. Each channel extends longitudinally along the housing. A first suture grasping instrument in the first channel has an end effector that can be actuated to extend outwardly from the distal end of the housing to grasp a first portion of a suture. A second suture grasping instrument in the second channel has an end effector that can be actuated to extend outwardly from the distal end to grasp a second portion of a suture. A cutting blade is recessed in the distal end at a location between the first and second channels. The first and second instruments can be retracted into the distal end of the housing while grasping the suture and to engage the suture with the blade to sever the suture. The third channel can house a laparoscope.

Abstract: A suturing device for minimally invasive surgery is disclosed. The suturing device has a head defining one or more ferrule holders and a tissue bite area. The device also has a first needle comprising a flywheel portion and one or more curved arms extending from the flywheel portion, each of the one or more curved arms comprising a ferrule engaging tip, wherein the first needle is pivotably coupled to the head. The suturing device further has a first actuator coupled to the first needle and configured to rotate it from a retracted position, where the ferrule engaging tip of each of the one or more curved arms starts away from the one or more ferrule holders, through the tissue bite area, and to an engaged position where the ferrule engaging tip of each of the one or more curved arms is operationally aligned with the one or more ferrule holders.

Abstract: A surgical grasper with an integrated suture pulley engages a suture during a suturing process. The grasper includes a jaw member pivotally connected to another jaw member, each having a suture engagement surface facing the suture engagement surface of the other. One jaw member includes a suture pivot post extending from its suture engagement surface. The other jaw member has an opening in its suture engagement surface sized and arranged to receive the pivot post. The grasper can be operated to position the jaw members in a suture grasping mode, in which the pivot post is received in the opening and the suture engagement surfaces securely engage the suture to inhibit movement of the suture. The jaw members can also be positioned in a pulley mode, in which the grasper slidably supports the suture and the pivot post acts as a pivot point and bearing surface for the suture.

Abstract: In various embodiments, a tissue thickness compensator can comprise one or more capsules and/or pockets comprising at least one medicament therein. In at least one embodiment, staples can be fired through the tissue thickness compensator to rupture the capsules. In certain embodiments, a firing member, or knife, can be advanced through the tissue thickness compensator to rupture the capsules.

Abstract: A surgical instrument including a housing, an endoscopic portion, a shaft portion and an end effector is disclosed. The endoscopic portion extends distally from the housing and defines a longitudinal axis. The shaft portion is selectively connectable to a distal end of the endoscopic portion. The end effector is selectively connectable to a distal end of the shaft portion.

Abstract: A surgical instrument including a housing, an endoscopic portion, a shaft portion and an end effector is disclosed. The endoscopic portion extends distally from the housing and defines a longitudinal axis. The shaft portion is selectively connectable to a distal end of the endoscopic portion. The end effector is selectively connectable to a distal end of the shaft portion.

Abstract: A surgical stapler deploys staples made of selectively degradable materials. Tissue resected with a stapler of the present disclosure, including staples made of the selectively degradable materials, may be subjected to treatment in the lab to degrade those materials forming the staples. In this way, a pathologist or similar hospital personnel may rapidly degrade the staples, thereby permitting testing of the entire resected tissue sample for the presence of disease.

Abstract: A wound closure system and a method of reducing the size of an open wound are disclosed. A suture line is sutured through body tissue adjacent an open wound, the suture line sutured so as to pass into the body tissue at an entry point and exit at an exit point, the suture line including a plurality of barbs extending outwardly at an acute angle with respect to a surface of the suture line. A biasing member applies a continuous pulling force on the suture line for stretching the body tissue toward the open wound, wherein the biasing member is configured to take up any slack of the suture line during stretching of the body tissue and keep the suture line taut.

Abstract: A method of producing a 3D thread using ultrasonic waves according to the present disclosure includes inserting yarn located between an ultrasonic generator and a mold base adjacent to each other into a location corresponding to an engraved pattern of the mold base, applying ultrasonic waves to the yarn while pressing the yarn by the ultrasonic generator, and producing a medical anti-loosening member formed into the shape of the engraved pattern using the ultrasonic waves, and the medical anti-loosening member includes a medical 3D thread including multiple barbs facing on both sides and a medical anti-loosening screw.

Abstract: A tissue thickness compensator comprising a first compensation layer, a second compensation layer, and a pocket situated between the compensation layers can be positioned in the end effector of a surgical instrument. A fastener cartridge positioned in the end effector can comprise a fastener moveable between an initial position and a fired position. When the fastener is moved from the initial position to the fired position, the fastener can move through the pocket and can compress a portion of the tissue thickness compensator. A support can be positioned between the first and second compensation layers. When the fastener compresses the tissue thickness compensator, at least one of the support, first compensation layer and second compensation layer can be deformed. The tissue thickness compensator can also comprise a tab and/or a limiting plate to control deformation of the compensation layers and/or the support.

Abstract: A surgical fastener applier including a housing containing a compartment, an elongated member extending distally from the housing, first and second jaws and a firing mechanism positioned within the housing. The firing mechanism is movable between a first position and a second position to effect firing of fasteners into the tissue clamped between the first and second jaws. A cover on the housing is openable to access the compartment. A power pack is removably loadable into the compartment, the power pack having a motor and an engagement member removably engageable with the firing mechanism within the compartment when the power pack is loaded into the compartment to effect movement of the firing mechanism from the first position to the second firing position.

Abstract: A device for treating tissue includes a capsule extending longitudinally from a proximal end to a distal end and including a channel extending therethrough, the capsule releasably coupled to a proximal portion of the device and clip jaws, proximal ends of which are slidably received within the channel of the capsule so that the clip jaws are movable between an open configuration and a closed configuration. Clip jaws are configured so that a distance between the distal ends of the clip jaws in an open configuration is between 15 and 18 millimeters. Clip jaws further include barbs extending from a distal portion thereof.

Abstract: A blood vessel anastomosis set for anastomosing a blood vessel cut of a blood vessel is provided. The blood vessel anastomosis set includes: a blood vessel anastomosis device having a plurality of anastomosis needles and a plurality of anastomosis needle holes; and a blood vessel fixation device including: a blood vessel widening portion for widening the blood vessel cut; and a blood vessel fixation portion for fixing the blood vessel cut to the blood vessel anastomosis device, wherein the blood vessel anastomosis set has a protection mechanism whereby the blood vessel fixation device is not in contact with the plurality of anastomosis needles when the blood vessel cut is fixed to the blood vessel anastomosis device.

Abstract: This disclosure relates generally to the field of devices and procedures for forming an opening between adjacent tissue structures. For example, in an embodiment, a system for forming an opening between body lumens may include a delivery catheter. A first access element may be configured to be positioned against a first body lumen disposed about a distal end of the catheter. A second access element having an outer diameter that substantially matches an outer diameter of the first access element may be disposed about the distal end of the catheter. The second access element may be configured to be positioned against a second body lumen and axially aligned with the first access element. A filament may be electrically coupled to one or both of the first and second access element.

Abstract: A stapling device is provided that includes a reload assembly and an anvil assembly. The anvil assembly supports a cut ring. The reload assembly includes a knife assembly that has a distal knife portion and a proximal knife portion that are separate from each other. The distal knife portion includes a cutting edge and is movable with the proximal knife portion from a retracted position to an advanced position into engagement with the cut ring. In the advanced position, the distal knife portion is retained by the cut ring to shield the cutting edge of the distal knife portion.

Abstract: A surgical stapling device includes a tool assembly having an anvil assembly and a shell assembly. The shell assembly includes a housing that supports first and second motors, a staple cartridge supporting a plurality of staples, and a knife. The first motor can be energized to eject the staples from the staple cartridge and the second motor can be energized to advance the knife to cut tissue.

Abstract: A surgical stapling device includes an anvil assembly and a reload assembly that includes a knife and a knife carrier. The knife is releasably coupled to the knife carrier and is embedded in a cut ring of the anvil assembly when the stapling device is fired. The knife is separable from the knife carrier upon application of a predetermined force on the knife. The predetermined force is applied to the knife after the stapling device is fired by moving the anvil assembly in relation to the reload assembly from a clamped position to an open position.

Abstract: A surgical anvil assembly for use with a circular stapling instrument includes an anvil center rod defining a longitudinal axis and an anvil head pivotally coupled to the anvil center rod and movable between a first operative condition and a second tilted condition. The anvil assembly further includes a locking assembly configured to selectively lock the anvil head in each of the first and second conditions.