653results about "Computer-aided surgery" patented technology

Needle-guiding systems and methods can facilitate establishing vascular access with a nonmagnetic needle. For example, a method of a needle-guiding system can include detecting and registering registration marks about a patient by patient-facing cameras of an alternative reality (“AR”) device, the AR device thereby establishing its location and orientation relative to a target area of the patient. The method can also include anchoring ultrasound images of the target area as viewed through a display screen of the AR device, the ultrasound images anchored about the patient relative to either an instant or previous location and orientation of the ultrasound probe; and providing an instant virtual needle trajectory of the needle as viewed through the display screen of the AR device, thereby indicating to a clinician whether the needle is properly oriented for establishing vascular access to a target vessel of the ultrasound images.

The invention discloses a radio frequency ablation electrode control method which comprises the following steps: S1, initializing an ablation temperature target value, a safety limit value and a power adjusting range, and loading a pre-stored anal fistula ablation three-stage feature library and impedance-temperature correlation degree thresholds of all stages; s2, collecting the electrode temperature, the electrode-tissue impedance and the ablation duration in real time, and judging the current ablation stage according to the matching relationship between the ablation duration and the three-stage feature library; s3, formulating a state judgment rule according to the current stage; s4, a fuzzy PID algorithm is adopted to calculate a power basic adjusting amount, a power dynamic compensation amount is calculated, and final output power is determined; and S5, repeating the steps S2-S4 to realize closed-loop control, triggering first-level early warning when the parameters are close to the boundary, triggering second-level alarm when the parameters exceed the safety limit value, and recording abnormal data. The stage adaptability is high, the problem of temperature adjustment lag can be solved, the adjustment precision is accurate enough, and the ablation effect can be improved.

The present disclosure provides a target region positioning method, an electronic device and a computer readable storage medium, the target region positioning method comprising: acquiring, by a camera, a target image comprising a skin surface region corresponding to a reaction bone; wherein the reaction bone is a bone having a target feature; identifying the skin surface region from the target image; determining first device coordinate information of a center position of the skin surface region in a device coordinate system; determining second device coordinate information of a center position of a target region comprising a lesion in the device coordinate system according to the first device coordinate information and predetermined first position relationship information; wherein the first position relationship information is position relationship information between the center position of the skin surface region and the center position of the target region.

Needle-guiding systems and methods can facilitate establishing vascular access with a nonmagnetic needle. For example, a method of a needle-guiding system can include detecting and registering registration marks about a patient by patient-facing cameras of an alternative reality ("AR") device, the AR device thereby establishing its location and orientation relative to a target area of the patient. The method can also include anchoring ultrasound images of the target area as viewed through a display screen of the AR device, the ultrasound images anchored about the patient relative to either an instant or previous location and orientation of the ultrasound probe; and providing an instant virtual needle trajectory of the needle as viewed through the display screen of the AR device, thereby indicating to a clinician whether the needle is properly oriented for establishing vascular access to a target vessel of the ultrasound images.

The invention discloses lithotripsy equipment and a control method thereof. The lithotripsy equipment comprises a lithotripsy device, an optical tracking device, a display and control device and an ultrasonic imaging device, the lithotripsy device comprises a mechanical arm module, a shock wave module and a control module; the mechanical arm module and the shock wave module are both electrically connected with the control module, and the control module and the optical tracking device are both electrically connected with the display and control device. The ultrasonic imaging device comprises a handheld ultrasonic probe; the handheld ultrasonic probe is in communication connection with the display and control device; the mechanical arm module comprises a mechanical arm, the shock wave module comprises a shock wave generator, and the shock wave generator is arranged at the front end of the mechanical arm; and a plurality of optical reflection markers are arranged on the backs of the handheld ultrasonic probe and the shock wave generator. According to the lithotripsy equipment provided by the embodiment of the invention, the intelligent degree of the extracorporeal shock wave lithotripsy machine is improved, the extracorporeal shock wave lithotripsy treatment process is simplified, and the treatment positioning precision is improved.

The dental handpiece has a handle and a housing with a first light-emitting diode and a first optical sensor. The housing also has a second light-emitting diode, a second optical sensor, shielding windows for each optical and apertures for supplying compressed air to each shielding window. A diffuser is located in each aperture, the diffuser being adapted to generate an air jet forming an air curtain. The dental handpiece can provide a reliable protection of the optical sensors by the air curtain and a high-quality three-dimensional image of an oral cavity during manipulation.

A medical system is disclosed that includes a medical device having an optical fiber, and an interchangeable connection component configured to provide a fiber optic connection between the medical device and capital equipment. The connection component is configured to facilitate cleaning and / or polishing of fiber optic interfaces include therewith. The connection component is also configured for replacement by a medical technician while the capital equipment is operational. The capital equipment may include one or more of an optical interrogator, a patch cable, a medical probe, an ultrasound machine, a display, a magnet sensor, or an electro-cardiogram (ECG) machine. The medical device may include an elongate member configured for insertion within the patient body, where the optical fiber core extends along a length of the elongate member.

A disclosure relates to methods and apparatus for processing an elongated body for a medical instrument. In one arrangement, targeted processing is applied to each of one or more local portions of the elongated body to cause a change in a room temperature magnetic property of material in each local portion, thereby causing the one or more local portions to have different room temperature magnetic properties than other portions of the elongated body.

Method and system for ultrasound treatment. An ultrasound device having at least one tilting ultrasound transducer is deployed onto skin tissue overlying a treatment region of internal tissue of a treated body part. The transducer is induced to transmit ultrasound energy onto skin tissue, such that a body interface implement of the transducer interfaces with the skin tissue surface. A motor-driven oscillator coupled with transducer is oscillated about an oscillation-axis relative to skin tissue surface such that at least one of: a position of the body interface implement, a tilt direction of the body interface implement, and a propagation direction of transmitted ultrasound, oscillates about oscillation-axis. Ultrasound device may be maneuvered to roam over skin tissue along at least one trajectory. Body shape parameters of the treated body part are measured using a measurement assembly including an imaging device, a green screen, and scale markers.

Systems and methods are provided for multi-schema analysis of patient specific anatomical features from medical images. The system may receive medical images of a patient and metadata associated with the medical images indicative of a selected pathology, and automatically classify the medical images using a segmentation algorithm. The system may use an anatomical landmark detection algorithm leveraging Deep Reinforcement Learning (DRL) techniques to automatically locate one or more anatomical landmarks associated with the patient specific anatomical feature within the medical images. A 3D surface mesh model may be generated representing the patient specific anatomical features including the located one or more anatomical landmarks. The located one or more anatomical landmarks may be used to guide placement of a 3D model of a medical device that may be fused with the 3D surface mesh model to generate a patient specific 3D model of the medical device.

To provide a method and a system for providing or maintaining a flow of fluid passing through the body passage such as a heart chamber and a blood vessel.SOLUTION: A shooting catheter for targeting a second blood vessel from a first blood vessel includes a catheter including a proximal part and a distal part including a needle opening and a flat rectangular radiopaque marker. The flat rectangular radiopaque marker disappears in rotation under fluoroscopy, and provides information on the rotation alignment of the shooting catheter. The shooting catheter includes a needle configured to extend through the needle opening. A method for positioning a catheter includes rotating the catheter in the first blood vessel until the marker has a thickness (e.g., the smallest thickness) under fluoroscopy. The thickness indicates rotation positioning of the catheter.SELECTED DRAWING: Figure 42B

A fluidic acoustic coupling system configured for management of fluids in histotripsy therapy is provided, which may include any number of features. Provided herein are systems and methods that provide management and control of fluid delivery and drainage of reservoirs within a fluidics cart of a histotripsy system. Additional embodiments are provided herein.

Disclosed are various examples and embodiments of systems, devices, components and methods configured to detect a location of a source of at least one cardiac rhythm disorder in a patient's heart, such as atrial fibrillation, and to classify same. Velocity vector maps reveal the location of the source of the at least one cardiac rhythm disorder in the patient's heart, which may be, by way of example, an active rotor in the patient's myocardium and atrium. The resulting velocity vector map may be further processed and / or analyzed to classify the nature of the patient's cardiac rhythm disorder, e.g., as Type A, B or C atrial fibrillation. The resulting cardiac rhythm classification then can be used to determine the optimal, most efficacious and / or most economic treatment or surgical procedure that should be provided to the individual patient. A simple and computationally efficient intra-cardiac catheter-based navigation system is also described. Also described and disclosed are various intra-cardiac catheter-based navigation systems.

An implant for in-vivo implantation which comprises an assembly of two or more constructive elements (3,4) which are movable relative to each other. Each constructive element (3,4) is partly or completely porous and comprises a porous part (5,6) with a matrix (7,8) of open cells (51,61). A first matrix (7) of the first element (3) comprises a first overlapping part (50) with a form-closed connection to a second overlapping part (60) of a second matrix (8) of the second of the constructive elements (4) through which the first overlapping part extends. The overlapping parts (50,60) are movable relative to each other to change a combined shape of the overlapping parts.

A method for generating a prosthesis by using three-dimensional scan data comprises the steps of: receiving encrypted oral data; receiving model information of an artificial intelligence neural network; determining metadata of the encrypted oral data; determining an operation prediction value on the basis of the model information and the metadata; and determining the size of a sub-operation unit on the basis of the operation prediction value. The size of the sub-operation unit is controlled on the basis of the operation prediction value.

There is described a depth gauge comprising: a drill guide arranged to receive a drill bit; and a sensor assembly, the sensor assembly comprising a displacement sensor for determining a displacement of the drill bit during a drilling procedure.

Disclosed is a method of controlling a modular battery powered handheld surgical instrument. The surgical instrument including a battery, a user input sensor, a controller, a radio frequency (RF) drive circuit, an ultrasonic transducer, ultrasonic transducer drive circuit, and an end effector. The end effector including an electrode electrically coupled to RF drive circuit, an ultrasonic blade acoustically coupled to the ultrasonic transducer, and a sensor to measure tissue parameters. The method includes applying an RF current drive signal to the electrode by the RF drive circuit; applying an ultrasonic drive signal to the ultrasonic transducer by the ultrasonic transducer drive circuit to acoustically excite the ultrasonic blade; controlling intensity, wave shape, and / or frequency of the RF current drive signal and the ultrasonic drive signal on a sensed measure of a tissue or user parameter.

A medical device includes a probe configured for insertion into a body of a patient and including a plurality of electrodes configured to contact tissue within the body. An electrical signal generator applies a train of bipolar pulses between at least one pair of the electrodes in contact with the tissue, each bipolar pulse having a voltage amplitude of at least 200 V and a duration of less than 20 μs, thereby causing irreversible electroporation of the tissue between the at least one pair of the electrodes. One or more electrical sensors sense energy dissipated between the at least one pair of the electrodes during the train of pulses. A controller controls, in response to the one or more electrical sensors, an electrical parameter and a temporal parameter of the train of pulses applied by the electrical signal generator such that the dissipated energy satisfies a predefined criterion.

Medical devices and related methods useful for needle access during medical procedures are described. The medical device may include a needle and a handle coupled to the needle, wherein the handle includes a body comprising a radiolucent material, a first marker proximate a proximal end of the body and a second marker proximate a distal end of the body. Each of the first marker and the second marker may include a radiopaque material, and the first marker may have a shape complementary to the second marker to align a position of the needle relative to a subject when visualized by X-ray imaging.

The present invention relates to an ultrasonic wave generating cartridge which comprises: a cartridge housing; an ultrasonic wave generating unit which is disposed so as to be able to move in a reciprocating manner in the cartridge housing; and a position detection unit which can detect the real-time position of the ultrasonic wave generating unit by sending a transmission signal to the movement path of the ultrasonic wave generating unit.

The disclosed technology includes an electrode for a medical probe having an elongated body. At least a portion of the elongated body can be electrically conductive. The elongated body can define a lumen that extends through the elongated body along a longitudinal axis of the elongated body. The electrode can include a locking stub that extends at least partially into the lumen so that the locking stub is locked to a member inserted into the lumen.

A catheter and method for the treatment of a patient having atrial flutter or other arrhythmia comprises an elongated catheter body having an outer wall, proximal and distal ends, and at least one lumen extending therethrough. Further it has a distal tip section comprising a flexible tubing having a proximal end and a distal end and a plurality of lumens extending therethrough. The proximal end of the tip section is fixedly attached to the distal end of the catheter body. The tip section further comprises a nitinol tube having slots formed therein which causes the distal tip section to deflect using the same puller-wire action used to cause the deflectable catheter to deflect at a point proximal to the distal tip section.

Disclosed are systems and methods for determining target characteristics during a laser procedure, comprising (i) obtaining a relationship between (i) a number of pixels associated with a light beam reflected from a target or an object located in proximity to the target on an endoscopic image obtained from a video sensor coupled to an endoscope and (ii) a distance of the target from a tip of the endoscope. The method further comprising (ii) measuring the number of pixels associated with the light beam reflected from the target or the object located in proximity to the target during a procedure, and (iii) based at least in part on the relationship obtained in step (i) and the measured number of pixels in step (ii), determining at least one of a size of the target or a distance of the target from the tip of the endoscope.

The invention discloses a multi-channel pushing power connection driving device which comprises a driving mechanism capable of generating linear driving force; a plurality of transmission units are arranged, each transmission unit corresponds to one flexible sleeve, a transmission driving part is arranged in each flexible sleeve, the tail end of each flexible sleeve is connected with a function execution assembly, and the transmission units transmit driving force to the transmission driving parts after being subjected to linear driving force, so that the transmission driving parts move relative to the flexible sleeves. Therefore, the power is transmitted to the function execution assembly to enable the function execution assembly to act. The driving mechanism is installed at one end of the motion platform, the multiple transmission units are arranged at the other end of the motion platform, and the motion platform can regulate and control the relative position of the driving mechanism relative to the transmission units; under the driving action of the moving platform, the driving mechanism is correspondingly matched with one or more corresponding transmission units on the mounting platform so as to drive the transmission units to drive the corresponding transmission driving parts.

A coordinate locating device comprising a support structure removably connectable to a wearable sensor device being worn by an individual. The support structure comprising a planar surface. The device includes a plurality of different fiducial marker components connected to the planar surface. The plurality of different fiducial marker components includes a set of fiducial markers connected to the planar surface in a non-collinear configuration relative to each other to define a three-dimensional (3D) space of pixels in an image. The plurality of different fiducial marker components includes a distance calibration fiducial marker connected to the planar surface and being configured to define a distance calibration length of pixels in the image, the distance calibration fiducial marker being perpendicular to the planar surface and defining a calibration length to locate a point of origin of motion sensing by the wearable sensor device. A system and method are also provided.

An apparatus includes a catheter body and an end effector. The catheter body has a distal end and is sized and configured to fit within regions of a cardiovascular system. The end effector is at the distal end of the catheter body and is sized and configured to fit within regions of a cardiovascular system. The end effector includes an end effector body, an electrode, and a sensor. The end effector body has an outer surface. The electrode has a tissue contact surface. The sensor has a tissue contact surface. The sensor is configured to sense at least one condition associated with tissue contacting the tissue contact surface of the sensor. The tissue contact surface of the sensor is configured to protrude relative to one or both of the outer surface of the end effector body member or the tissue contact surface of the electrode.

A mount assembly for use with a navigable tracker comprises a frame, a coupler, a coupler lock, a guide, an anchor and a guide lock. The frame defines a seat and a coupler seat. The coupler has a tracker interface for releasably securing to the navigable tracker, and a perch supported by the coupler seat for selective movement relative to the frame about a coupler point. The coupler lock is operatively attached to the frame and selectively operable between a secured configuration to restrict movement of the coupler relative to the frame, and a movable configuration to permit limited movement of the coupler relative to the frame about the coupler point. The guide defines a bore and is arranged in the seat for selective pivoting movement about a pivot point disposed within the bore. The anchor has a shank arranged for selective sliding engagement with the bore. The guide lock is coupled to the frame and selectively operable between a locked configuration to restrict movement of both the anchor and the guide relative to the frame, and a released configuration to simultaneously permit pivoting movement of the anchor relative to the frame about the pivot point and translational movement of the anchor relative to the guide through the bore.

The invention relates to the field of robot control, and discloses a control method for a robot system, the robot system, computer equipment and a storage medium. The robot system comprises a base station and at least one motion arm arranged on the base station, the base station and / or the at least one motion arm comprises at least one joint, and the control method for the robot system comprises the steps that the current pose of a remote motion center of the at least one motion arm is obtained; obtaining a pose relationship between the remote motion center and a control reference point of at least one motion arm; obtaining adjustment information of at least one motion arm; and based on the current pose of the remote motion center, the pose relationship between the remote motion center and the control reference point and the adjustment information, calculating a control signal for the at least one joint so as to control the at least one motion arm to move relative to the fixed point.

To provide an imaging processing system that improves utilization efficiency of an FOV part in an imaging area.SOLUTION: A system of the present invention displays medical imaging data, and includes one or more data inputs, one or more processors, and one or more displays. The one or more data inputs are configured to receive first image data generated by a first medical imaging device. The first image data includes a field-of-vision (FOV) part and a non-FOV part (Step 202). The one or more processors identify the non-FOV part of the first image data (Step 204). By removing at least part of the non-FOV part of the first image data, cropped first image data is generated (Step 206). The cropped first image data to be displayed in a first part of the display and additional information to be displayed in a second part of the display are transmitted (Step 208).SELECTED DRAWING: Figure 2