Abstract: Autoregressive modelling is used to identify periodic physiological signals such as heart rate or breathing rate in an image of a subject. The colour channels of a video signal are windowed and normalised by dividing each signal by its mean. The ratios of the normalised channels to each other are found and principal component analyses conducted on the ratio signals. The most periodic of the principal components is selected and autoregressive models of one or more different orders are fitted to the selected component. Poles of the fitted autoregressive models of different orders are taken and pure sinusoids corresponding to the frequency of each pole are generated and their cross-correlation with the original component is found. Whichever pole corresponds to the sinusoid with the maximum cross-correlation is selected as the best estimate of the frequency of periodic physiological information in the original video signal.

Abstract: Systems and methods for monitoring patients with respiratory diseases are described. A system may include a sensor circuit configured to sense one or more physiological signals indicative of respiratory sounds, and a spectral analyzer to generate first and second spectral contents at respective first and second frequency bands. The system may produce a respiratory anomaly indicator using the first and second spectral contents, or additionally with other physiological parameters. The system may detect an onset or progression of a target respiratory condition such as asthma or chronic obstructive pulmonary disease using the respiratory anomaly indicator, or to trigger or adjust a therapy.

Abstract: Systems and methods for monitoring patients with respiratory diseases are described. A system may include a sensor circuit to sense a respiration signal and at least one hemodynamic signal. The system may detect a specified respiratory phase from the respiration signal, and generate from the hemodynamic signal one or more signal metrics that are correlative to at least one of a systolic blood pressure, a blood volume, or a cardiac dimension. The system may detect a restrictive or obstructive respiratory condition when the hemodynamic signal metric indicates hemodynamic deterioration during a specified respiratory phase. The system may additionally classify the detected restrictive or obstructive respiratory condition into one of two or more categories, and deliver a therapy based on the detection or the classification.

Abstract: A patient monitoring system and method for visual alarm indication on parameter active cables are provided herein. The patient monitoring system includes a plurality of sensors and an active cable coupled to the plurality of sensors to acquire data from the plurality of sensors. The patient monitoring system also includes a host patient monitor coupled to the active cable, wherein the active cable includes a visual alarm that is to indicate an alarm condition using the plurality of sensors.

Abstract: Systems and methods are disclosed that provide smart alerts to users, e.g., alerts to users about diabetic states that are only provided when it makes sense to do so, e.g., when the system can predict or estimate that the user is not already cognitively aware of their current condition, e.g., particularly where the current condition is a diabetic state warranting attention. In this way, the alert or alarm is personalized and made particularly effective for that user. Such systems and methods still alert the user when action is necessary, e.g., a bolus or temporary basal rate change, or provide a response to a missed bolus or a need for correction, but do not alert when action is unnecessary, e.g., if the user is already estimated or predicted to be cognitively aware of the diabetic state warranting attention, or if corrective action was already taken.

Abstract: The present invention relates to mammography, e.g. tomosynthesis mammography. In order to provide a mammography X-ray imaging with improved data quality, a mammography X-ray imaging system (10) for tomosynthesis mammography is provided that comprises an X-ray source (12), an X-ray detector (14), a support structure (22), and a breast support (18) with a breast support surface (20). The X-ray source and the X-ray detector are mounted on an upwardly extending scan arm (24); the X-ray source is mounted on the scan arm above the breast support and the X-ray detector is mounted below the breast support. The scan arm is movably mounted to the support structure to perform a swivelling motion about a rotation axis (26) located below the breast support. During the swivelling motion, the scan arm swivels about the rotation axis such that the X-ray source and the X-ray detector perform a scan motion and an object on the breast support is radiated from different angular directions.

Abstract: A medical information processing apparatus according to an embodiment includes processing circuitry. The processing circuitry collects pieces of past image data in a plurality of time phases that contain at least a part of a coronary artery of a heart and new image data in one time phase that contains at least a part of the coronary artery and has been acquired after acquisition of the pieces of past image data. The processing circuitry performs registration processing between the pieces of collected past image data and registration processing between any one of the pieces of past image data and the new image data. The processing circuitry generates pieces of synthesized image data corresponding to the time phases of the pieces of past image data other than the past image data on which the registration processing with the new image data has been executed by reflecting a shape of the new image data based on results of the registration processing.

Abstract: According to an X-ray CT apparatus and a scanning method of the present invention, in order to efficiently create an image used for diagnosis, an operator selects a desired part from a part selection GUI before main scanning by using an ROI object imitating a shape of each part, held in a storage device, and thus the ROI object can be disposed on a scanogram image, in which setting information corresponding to a part is set for the ROI object in advance, a region of interest associated with the part is set, main scanning is performed under conditions associated with the set region of interest, and an image is reconstructed on the basis of X-ray information obtained through the main scanning.

Abstract: An X-ray CT apparatus according to an embodiment includes processing circuitry. The processing circuitry collects pieces of image data in a plurality of time phases that contain at least a part of a coronary artery of a heart. The processing circuitry acquires image indexes regarding the pieces of image data. The processing circuitry extracts a set of image data from combinations of pieces of image data having a larger time interval than a predetermined time interval, of the pieces of image data, based on the image indexes in the respective pieces of image data. The processing circuitry performs fluid analysis regarding the coronary artery based on the extracted set of image data to obtain a fluid parameter regarding the coronary artery.

Abstract: A system and method using an inflatable jacket over the compression paddle of a mammography and/or tomosynthesis system to enhance imaging and improve patient comfort in x-ray breast imaging.

Abstract: An ankle imaging accessory is provided by the present invention, particularly an ankle positioning device to facilitate the taking of X-ray views of a patient who had sustained an ankle fracture. The ankle imaging accessory is made from an X-ray translucent material and includes heel supports on which heels of a patient can locate. A pair of spaced apart stops defines the limits of an arc on which a foot pivoting on the heel support can move.

Abstract: A urological device include a patient table with longitudinal and broad sides, and an X-ray imaging system containing an X-ray source and an X-ray detector for detecting the X-ray radiation emitted by the X-ray source towards the patient on the patient table. A first linear drive is provided for moving the X-ray source parallel to the broad side and a second linear drive is provided for moving the X-ray detector parallel to the broad side, but in an opposite direction. A dedicated pivoting mechanism is configured to pivot the X-ray source around a first pivot axis.

Abstract: Collision-free movement of a mobile medical device, such as a mobile medical imaging device, in a room is controlled via a man-machine interface. A model of the room environment is created and displayed, together an actual position of the medical device. The room model and the actual position are based at least in part on real-time sensor data. A destination position for the medical device is entered, the entered destination position is displayed and a collision-free movement path is generated from the actual position to the destination position. The movement path is displayed in the room model. A movement command relating to the displayed movement path is entered and the medical device is driven along the entered movement path from the actual position to the destination position.

Abstract: In one embodiment, a medical image diagnostic apparatus includes a memory circuit; a display; and processing circuitry configured to acquire medical images of an object at respective time phases, detect respective positions of a treatment device in the medical images, acquire biological information from the medical images, compute biological indexes indicating degree of a treatment effect for the respective time phases based on the biological information, cause the memory circuit to store the biological indexes and the respective positions of the treatment device in the medical images such that each biological index is associated with a position of the treatment device in a medical image, from which the biological information corresponding to the each biological index is acquired, for the respective time phases, and cause the display to display each position of the treatment device and a biological index associated with the each position of the treatment device.

Abstract: The present disclosure discloses medical imaging devices and suspension gantries thereof. An example medical imaging device includes a suspension gantry and a rotatable C-arm which is connected with the suspension gantry and provided with an imaging chain. The suspension gantry includes a suspension base, a first rotating arm configured to be connected to the suspension base and rotatable around a first axis, and a second rotating arm configured to be connected to the first rotating arm and rotatable around a second axis. The rotatable C-arm is configured to be connected with the second rotating arm and be rotated around a third axis.

Abstract: Digital subtraction angiography is used to improve the contrast of images of patient vasculature. A non-contrast image is recorded with no contrast medium injected into the patient, and then a succession of contrast images is captured after the injection of a contrast medium. The non-contrast image is successively registered to the contrast images, and then subtracted. This removes background structures, but leaves the vasculature untouched, making blood vessels easier to see. Artefacts can remain when different motion layers are present in the X-ray image (for example, the spine and the lungs). This application discusses a technique to prevent artefacts occurring when different motion layers are present in an X-ray frame or sequence.

Abstract: A computer implemented method for estimating the volume of a medium comprising a contrast agent injected to a hollow organ through a catheter during an injection event, the method comprising the determination of the duration of injection during the injection event, the determination of the flow rate based on the procedure type, acquisition type, organ, specificities of the user controlling the injection, patient characteristics, concentration of an contrast agent in the medium, administration route, type of catheter, the size of the catheter, and/or any pre-sets provided, and the calculation an estimate for the volume of medium injected based on the duration of injection and the flow rate.

Abstract: A radiographic image capturing apparatus includes: scanning and signal lines; a two-dimensional array of detecting elements defining a detecting part; a control unit that reads image data from all detecting elements in a reading area of the detecting part by repeating a cycle of a readout process at N-line intervals, wherein the scanning line subjected to the readout process is shifted every cycle, where N is an integral number of at least 1; and a communication unit for external communication. The control unit detects a radiation emission start of a radiation irradiating apparatus, and if the readout process starts with an N+1th or any subsequent scanning line and then starts with any of first to N+1th scanning lines in a certain cycle, the control unit transfers the image data read in the certain cycle as preview image data substantially concurrently with the readout process.

Abstract: The disclosure relates to an X-ray machine and a method for the operation of the X-ray machine for generation of a three-dimensional reconstruction of a body part. The method includes supplying a first X-ray capture of the body part; an automatic analysis of the first X-ray capture; an evaluation of the suitability of at least one further capture angle by the computing unit in the light of a result from the automatic analysis; setting of a second capture angle on the X-ray machine, either automatically by the computing unit or manually by an operator; a manually controlled approach to the set second capture angle by a capture unit of the X-ray machine; and capture of the second X-ray capture from the approached second capture angle by the capture unit to provide an improved method for operation of an X-ray machine for generation of a three-dimensional reconstruction of a body part.

Abstract: In order to provide an arithmetic device, an X-ray CT apparatus, and an image reconstruction method, capable of reducing processing time while maintaining a noise reduction effect, in a successive approximation image reconstruction method (separable paraboloidal surrogate (SPS) method) of the related art, updated images are forward-projected, whenever images are repeatedly updated, a difference between forward projection data and original object projection data is back-projected so that a difference image is obtained, and a forward projection process and a back projection process are repeatedly performed, but, in the present invention, a forward projection process and a back projection process requiring calculation time are replaced with a process requiring a relatively small calculation amount, such as a difference between an updated image and a reference image, and, as a result, it is possible to considerably reduce a calculation amount in a successive approximation image reconstruction process and to reduc

Abstract: One embodiment of the present invention relates to a medical phantom which is an object that models at least a part of the human body by using a plurality of unit blocks, wherein the plurality of unit blocks include: a first unit block having a hexahedral shape of which the inside is empty; and a second unit block having a shape, of which the inside is empty, different from the hexahedral shape, having a plurality of ridges formed at the upper end thereof for stud-and-tube coupling, and having a plurality of furrows formed at the lower end thereof and enabled to be coupled to the plurality of ridges. The medical phantom is determined according to a combination form of the first unit block and the second unit block, at least one hole is formed on the lateral surfaces of the first unit block and the second unit block and a medium can be injected through the at least one hole.

Abstract: Systems and methods relating to placement of an ultrasound transducer for a procedure. In a non-limiting embodiment, a 3D environment including images of a body region of a patient, as well as images including a first virtual representation of an ablation needle at a first location and a second virtual representation of an ultrasound transducer at a second location is rendered on a display device. A determination may be made as to whether the first and second virtual representations collide at a first collision point. If so, at least one parameter associated with an orientation and/or position of the second virtual representation may be adjusted. A determination may then be made as to whether or not the first and second virtual representations still collide and, in response to determining that there is no collision, position data indicating the location of the second virtual representation after the adjustment, is stored.

Abstract: A medical apparatus includes a model-image generating section configured to generate a model image obtained by modeling a shape of an inside of a subject, a coordinate calculating section configured to detect a three-dimensional position of a feature point of the inside of the subject, set a polar coordinate on the basis of a position of the feature point, and calculate an arbitrary three-dimensional position of the inside of the subject according to the polar coordinate, and an image generating section configured to show the arbitrary three-dimensional position of the inside of the subject on the model image on the basis of one angle component among components of the polar coordinate calculated by the coordinate calculating section and a value obtained by correcting the one angle component according to another angle component.

Abstract: An ultrasound diagnostic device detecting shear wave propagation velocity through push pulse transmission. The ultrasound diagnostic device includes: a push pulse transmitter that transmits a push pulse; a detection wave transmitter/receiver that, following the push pulse transmission, transmits plane wave transmission detection waves towards a region of interest (ROI) inside a subject and receives reflection detection waves from the subject, to generate receive signals sequentially; a displacement detector that detects subject tissue displacement occurring inside the ROI due to a shear wave; and a shear wave analyzer that detects a shear wave propagation velocity based on the subject tissue displacement.

Abstract: A method of generating a 3-D patient-specific bone model, the method comprising: (a) acquiring a plurality of raw radiofrequency (“RF”) signals from an A-mode ultrasound scan of a patient's bone at a plurality of locations using an ultrasound probe that comprises a transducer array; (b) tracking the acquiring of the plurality of raw RF signals in 3-D space and generating corresponding tracking data; (c) transforming each of the plurality of raw RF signals into an envelope comprising a plurality of peaks by applying an envelope detection algorithm to each of the plurality of raw RF signals, each peak corresponding with a tissue interface echo; (d) identifying a bone echo from the tissue interface echoes of each of the plurality of raw RF signals to comprise a plurality of bone echoes by selecting the last peak having a normalized envelope amplitude above a preset threshold, wherein the envelope amplitude is normalized with respect to a maximum peak existing in the envelope; (e) determining a 2-D bone contour f

Abstract: A method displays an ultrasound image of subject tissue that defines a region of interest, the image acquired in a first measurement mode. In response to an operator instruction, the method switches to a second measurement mode, analyzes the subject tissue within the region of interest for compatibility with the second measurement mode, and highlights one or more areas of the subject tissue for removal from the region of interest, displaying a revised region of interest according to the mode compatibility analysis. One or more signals for the second measurement mode are directed to the revised region of interest and measurement results displayed.

Abstract: A method tracks a user's operation of an ultrasound system. Based on the tracked operations, the method uses a machine-learning module to generate a proposed custom system configuration for the ultrasound system for the user. The proposed custom system configuration is presented to the user. In response to a user instruction, the proposed custom system configuration is implemented on the ultrasound system.

Abstract: A device (1) for the collection of a sample of urine from a urine stream (US), the device comprising a conduit through which the urine stream flows and having an inlet (2) and an outlet (3) and a valve device (6) for directing a portion of the urine stream into a sample vessel (5), wherein the valve device has at least three states, a first state whereby urine from the urine stream is unable to enter the sample vessel, a second state where urine is able to enter the sample vessel and a third state where urine is unable to enter the sample vessel, the valve device being sequentially biased towards the second and third states and wherein, in the first and third states, urine from the urine stream exits the conduit via the outlet.

Abstract: A handheld device includes an electronic instrument and a capacitive power supply for storing and delivering power to the electronic instrument. The capacitive power supply includes at least one capacitor, and an electronic circuit operable to boost a voltage from the capacitor to a higher voltage for use by the electronic instrument. The capacitive power supply can be rapidly recharged. Some configurations include an accelerometer which permits the handheld device to detect movement and perform various operations responsive to detected movement. A dual charging station is also disclosed.

Abstract: Components for an endoscopic vessel harvesting system suitable for harvesting target vessels such as the saphenous vein or radial artery for cardiac artery bypass graft surgery. The main components of such systems include a vessel dissector and a vessel harvester, both of which work in conjunction with a separately provided endoscope. The vessel dissector is an elongated cannula having a blunt tip for separating layers of facial around vessels. The tip may be movable, and is typically transparent to permit viewing forward of the tip using the endoscope. Internal features of the tip may reduce glare back to the endoscope. Several devices improve visibility through the tip by reducing interference from tissue or fluid on the tip. The vessel harvester also has an elongated cannula for receiving the endoscope. Several tools within the harvester permit manipulation, severing, and sealing of vessels forward of the distal end.

Abstract: This invention relates to surgical suturing devices and methods by which suture may be passed through tissue during surgery, and, more particularly, to an improved blade of a suture passer needle. The suture passer needle includes a first side, a second side, and a blade disposed at an end of the needle. The blade has a first edge extending from the first side of the needle and a second edge extending from the second side of the needle, which converge to a tip of the blade. A notch is disposed in the blade and forms an opening in the first side of the blade. The blade also has one or more cutout portions distal and/or proximal the notch, which minimize the stress and strain placed on the blade. The suture passer needle can be incorporated into surgical suturing devices or suture passer devices to pass suture through a tissue body.

Abstract: The present invention relates to an instrument and method for passing a medical implement through tissue with magnetic forces. The implement can be an implant, either permanent or temporary, and is provided with a magnetic component. A magnetic field is established and the magnetic component and/or magnetic field is manipulated to drive the implant through tissue. Alternatively, the instrument itself is the implement and includes at least one magnetic element so that a magnetic field established by an external magnetic generator drives the instrument through tissue. In another embodiment, the instrument includes two magnetic elements that are moveable with respect to one another and interaction between the magnetic elements drives the instrument through the tissue. Examples of applications of the present invention include a suture passer and a tissue anchor.

Abstract: A staple comprising: a bridge configured to be elastically stretchable; a first leg connected to said bridge and configured to be elastically bendable; and a second leg connected to said bridge and configured to be elastically bendable; said first and second legs being connected to said bridge so that they are angled toward one another when they are in an unstrained state; such that when said bridge is elastically strained into an elongated condition, and said first and second legs are elastically strained so that they extend substantially parallel to one another, and said first and second legs are disposed in appropriate holes on opposing sides of a fracture line, and when the strain on said staple is thereafter released, compression will be provided across the fracture line by both said bridge and said first and second legs.

Abstract: Surgical stapling devices including surgical fastening assemblies, surgical fastening devices, surgical fastening kits, and surgical fastening systems are provided. Surgical fastening assemblies include staples that provide a redundant approach and have prongs that are retroflexed onto the back of opposing staples or provide a rivet based compression. Surgical fastening devices include low profile fastening devices that can be attached to the distal end of endoscopes. Surgical stapling systems include combinations of staples, rivets, fastening devices and/or endoscopes to which fastening devices are attached.

Abstract: A surgical device that comprises a tissue compression device that applies a compression force to tissue, a tissue-compression-measurement device having a mechanically-biased switching element disposed in line with the tissue compression device, wherein the tissue-compression-measurement device indicates when an amount of the compression force applied to the tissue reaches a pre-determined optimal compression force, and a feedback controller electrically connected to the tissue-compression-measurement device and receiving the indication from the tissue-compression-measurement device. A staple firing procedure is permitted to be carried out on the compressed tissue only when the feedback controller receives the indication that the pre-determined optimal compression force has been reached.

Abstract: A surgical stapling device (10) is provided that includes a handle assembly (12), a movable trigger (26) and an elongated body portion (14). A staple containing shell assembly (22) is mounted on a distal end of the elongated body portion (14) and an anvil assembly (20) is movably mounted relative to the staple containing shell assembly (22). An auto-lock safety mechanism (40) is provided to prevent secondary actuation of the surgical stapling device after initial actuation. The auto-lock safety mechanism (40) includes a primary lock or slider assembly (42) for blocking movement of the trigger (26) and a secondary lock or stopper (44) for blocking movement of the slider assembly (42) prior to approximation of the anvil assembly (20) relative to the staple containing shell assembly (22). A slider (70) is urged to a locked or blocking position by a biasing member (72).

Abstract: A staple cartridge assembly comprises a connector, a cutter push rod and an elastic sheet, the elastic sheet having a first through groove and the cutter push rod being formed by laminating multiple sheets, wherein when the staple cartridge assembly is in an original status or a closed status, part of the cutter push rod is located in the first through groove, and the first through groove restricts detaching of the multiple sheets in a laminating direction of the multiple sheets; in a firing process of the staple cartridge assembly, the cutter push rod moves towards a distal end of the staple cartridge assembly to press the elastic sheet, such that the elastic sheet deforms and the cutter push rod is gradually detached from the first through groove; after the firing of the staple cartridge assembly is finished, the cutter push rod is detached from the first through groove.

Abstract: Provided is a method of treating orthostatic intolerance in a patient. The method comprises selecting a patient suffering from orthostatic intolerance and creating a flow pathway between a first vascular location and a second vascular location. The first vascular location comprises a source of arterial blood and the second vascular location comprises a source of venous blood. Systems and devices for creating a flow pathway are also provided.

Abstract: A punching device for punching a lumen and implanting an implant device includes at least the implant device for punching the lumen and for implantation into the lumen. In addition, the punching device includes an implantation device, a closure device, and an actuation device.

Abstract: An endovascular surgical tool includes a flexible, electrically-conductive corewire, a return conductor, a resistive heating element attached to the distal end of the corewire, and a therapeutic payload attached to the loop of the resistive heating element by a coil connecting member. The corewire includes at least one segment at its distal end which transitions from the substantially uniform cross-section of its proximal end to a smaller distal cross-section. The return conductor is electrically insulated from and bonded to the corewire. The resistive heating element includes a first terminal electrically connected to the corewire, a second terminal electrically connected to the return conductor, a helical coil, and a loop. The helical coil and the loop are electrically in series between the first terminal and the second terminal. The coil connecting member has a release temperature lower than a loop melting temperature of the loop of the resistive heating element.

Abstract: A surgical saw blade for being coupled to a drive hub of a surgical saw. The surgical saw blade includes an attachment portion configured to be removably coupled to the drive hub. The surgical saw blade also includes a cutting portion opposite the attachment portion that includes a plurality of teeth. Additionally, the attachment portion defines a pair of indents. The first indent and the second indent are each defined by at least one curved surface. The curved surface is radially outwardly convex.

Abstract: A device for positioning a cutting guide with respect to a bone comprising a body forming the cutting guide or intended to be fixed to the cutting guide; a least two contact members intended to freely contact the bone; and adjustment means for individually varying the relative position of the body with respect to each contact member.

Abstract: A jig for determining a patient-adapted implant size of a femoral implant of a knee endoprosthesis. The jig has a main body, a probe part movable relative to the main body along a measuring direction. The probe part has an arm with a tip placeable on an anterior reference point of the femur's distal end, two contact pieces for placing on and referencing the medial and lateral posterior condyle of the femur's distal end, and at least one scale and pointer for indicating the probe part's position in the measuring direction relative to the contact pieces. The distance of the probe tip from the contact pieces is adjustable such that the distance is different with respect to the two contact pieces and, for each contact piece, a dedicated scale and an associated pointer are provided for the indication of the probe part's position relative to the respective contact piece.

Abstract: A surgical drill includes a drill bit, a driving device connected and electrically coupled to the drill bit, and a smart module electrically coupled to the driving device. In a bone drilling work, the smart module monitors an electrical signal of the driving device, and if the electrical signal shows a step drop, the smart module will send a stop command to the driving device to stop the operation of the driving device.

Abstract: Described herein are methods and devices useful for reaming and shaping the surfaces of a joint in a mammalian body. The reaming and shaping devices and methods are particularly useful in preparation of a joint for a minimally invasive joint replacement or resurfacing, though they may be used as part of any appropriate arthroplasty procedure.

Abstract: A patellar clamp and associated system and method for using the clamp are provided. A patellar clamp includes a pair of handles movably coupled together, a patella support portion connected to the pair of handles and configured to engage a first side of a patella, and a reamer guide configured to engage a second side of the patella. The patella support portion and the reamer guide each include a first pair of flanges configured to engage a first and second tendon associated with the patella. The reamer guide is configured to allow reaming and resurfacing the entire desired posterior articular surface of the patella in a single operation without readjusting the position of the reamer guide.

Abstract: A medical grasping device is disclosed. The medical grasping device may be configured to retrieve an object from within a body lumen. A medical grasping device assembly, wherein a portion of the medical grasping device is disposed within a lumen of a delivery sheath, and methods of using the medical grasping device assembly are also disclosed.

Abstract: Rolling tractor tube mechanical thrombectomy apparatuses that may be deployed from out of a catheter in situ are described herein. These apparatuses may be delivered out of a catheter from a collapsed delivery configuration within the catheter to a deployed configuration out of the catheter, in which the same catheter is re-inserted between a tubular tractor and an elongate puller. In particular, any of these methods and apparatuses may be adapted to work with a tractor tube having an open end that is biased open, including using an annular bias.

Abstract: A stone or tissue capture device comprises a shaft with a deployable sweeping/containment structure at its distal end. The shaft is adapted to be removably placed over and connected to a conventional endoscope. The combination of the capture device and endoscope can be introduced into the various body lumens to capture, fragment/excise, and remove stones or tissue from the bladder and kidney, stomach, peritoneum, and from lumens such as the ureter, colon, hepatic ducts, airways, or blood vessels.

Abstract: A tissue removal system is provided which enables optimally performing a full-thickness resection of a hollow organ while minimizing invasiveness. In this tissue removal system, a tissue pressing tool which has a tissue contacting part and which is guided into the abdominal cavity, and a resection and anastomosis device work together. The resection and anastomosis device resects and performs anastomosis of tissue positioned between a main body and an anvil part, and, when pressing the tissue to be cut to the cutting position of the resection and anastomosis device by means of the tissue contacting part, the tissue contacting part is pressed against two abutment parts of the resection and anastomosis device.