31 results about "Anatomical surface" patented technology

Enhanced dilatation devices are contemplated which incorporation of a number of new features, principally among them an actuator for producing reciprocating linear motion in at least the insertion end of the dilatation device to aid in, automate, and enhance the dilatation and / or sexual stimulatory function of the dilatation device, and a rear rigid arcuate member configured for placement over an anatomical surface such as the mons pubis or the perineum, and an expansion region incorporating an expanding balloon on its inner arcuate face configured to expand against and frictionally engage with the anatomical surface to assist with retaining the dilatation device in place during use. Such enhanced dilatation devices may be embodied by a new dilatation device, or may be implemented in the form of an optional attachment which may be used to upgrade an existing dilatation device.

A method includes obtaining multiple local activation times (LATs) at different respective measurement locations on an anatomical surface of a heart. The method further includes computing respective directions of electrical propagation at one or more sampling locations on the anatomical surface, by, for each sampling location, selecting a respective subset of the measurement locations for the sampling location, constructing a set of vectors, each of at least some of the vectors including, for a different respective measurement location in the subset, three position values derived from respective position coordinates of the measurement location and an LAT value derived from the LAT at the measurement location, and computing the direction of electrical propagation at the sampling location based on a Principal Component Analysis (PCA) of a 4×4 covariance matrix for the set of vectors. The method further includes indicating the directions of electrical propagation on a display.

Perform cardiac mapping. 【Solution means】A system comprising: A display, A processor, Based on each signal acquired by a plurality of electrodes belonging to an in-vivo probe on the anatomical surface of the heart, calculate each local activation time (LAT) at each position of the electrodes, Based on the LAT, calculate each direction and speed of electrical propagation at the position, While the electrodes are each at the position, display an icon of the probe on the display, Dispose each marker having at least one characteristic oriented in the direction of the electrical propagation and varying according to the speed at a portion of the icon corresponding to the electrode, A processor configured as such, including.

A method includes, based on respective signals acquired by a plurality of electrodes on an anatomical surface of a heart, computing respective local activation times (LATs) at respective locations of the electrodes. The method further includes, based on the LATs, computing respective directions of electrical propagation at the locations. The method further includes selecting pairs of adjacent ones of the electrodes such that, for each of the pairs, a vector joining the pair is aligned, to within a predefined threshold degree of alignment, with the direction of electrical propagation at the location of one of the electrodes belonging to the pair. The method further includes associating respective bipolar voltages measured by the pairs of electrodes with a digital model of the anatomical surface. Other examples are also described.

The invention relates to a physical medical element placement system. An exemplary system is configured to: obtain anatomical characteristic data representing characteristics associated with an anatomical surface to be covered by a physical medical element, the anatomical surface being within an interior space of a patient; and determining a set of placement guidance parameters based on the anatomical characteristic data. The set of placement guidance parameters may include one or more parameters configured to guide placement of the physical medical element on the anatomical surface with one or more surgical instruments controlled by the computer-assisted surgical system.

A method includes, based on respective signals acquired by a plurality of electrodes on an anatomical surface of a heart, computing respective local activation times (LATs) at respective locations of the electrodes. The method further includes, based on the LATs, computing respective directions of electrical propagation at the locations. The method further includes selecting pairs of adjacent ones of the electrodes such that, for each of the pairs, a vector joining the pair is aligned, to within a predefined threshold degree of alignment, with the direction of electrical propagation at the location of one of the electrodes belonging to the pair. The method further includes associating respective bipolar voltages measured by the pairs of electrodes with a digital model of the anatomical surface. Other examples are also described.

A system for registering an anatomical surface for a registration procedure includes memory storing instructions and one or more processing devices configured to execute the instructions. Executing the instructions causes the system to perform, based on a dimension of a spherical probe tip of a probe configured to perform the registration procedure, a dilation process on a first model of patient anatomy including the anatomical surface to obtain a second model of the patient anatomy, receive data indicative of a plurality of locations of the spherical probe tip relative to the patient anatomy, and register points corresponding to the plurality of locations of the spherical probe to the second model.

A medical device has a guide locator and a guide element. The guide locator has a mount body having a conformal surface that is shaped to be complementary to a natural anatomical surface of a patient bone and defining a mount receptacle. The mount body defines a guide receptacle. The guide element includes a guide body having a shape configured to fit with to attach the guide receptacle of the guide locator and a guide slot formed in the guide body. The guide slot includes at least one opening for receiving a tool therethrough. A retention mechanism is configured to hold the guide element within the guide receptacle of the guide locator.

An incision foil made of a sterile, thin adhesive plastic film with a defined pattern printed on it (e.g. a fine grid pattern) can be stuck e.g. on a patient's skin surface and which marks the anatomical region of interest. Using a camera, images are acquired of the attached film and the deformation of the pattern is digitized. With a computer vision algorithm the surface of the patient, which corresponds to the surface of the film, is reconstructed from the detected pattern features in the images in comparison to the known original undeformed pattern. A method determines a geometry of the surface of the patient using the incision foil.

A system and method for determining the size of a physical medical element. An exemplary system is configured to instruct a display device to render a virtual medical element representing a physical medical element over a target location within an image of a patient's internal space, the target location depicting an anatomical surface to be covered by the physical medical element; while the virtual medical element is rendered over the target location, receiving user input that sets at least one of the pose or size of the virtual medical element within the image; and determining the physical size of the physical medical element based on the user input and depth data from a depth map representing the internal space.

A method of registering sets of anatomical data for use during a medical procedure is provided herein. The method may include accessing a first set of model points of a patient anatomy of interest and intra-operatively acquiring a second set of model points by visualizing a portion of the anatomical surface in the patient with a vision probe. The method may further include extracting system information, including kinematic information from a robotic arm of a medical system and / or setup information, and generating an initial seed transformation based on the extracted system information. Thereafter, the method may include applying the initial seed transformation to the first set of model points and generating a first registration between the first set of model points and the second set of model points to permit model and actual information to be viewed and used together by an operator.

An electroanatomical mapping system models an anatomical (e.g., endocardial) surface bounding an anatomical volume (e.g., a heart chamber). The system receives a three-dimensional ultrasound image containing the volume, segments a blood pool / tissue boundary of the volume in the image, and outputs the segmented boundary as a model of the anatomical surface. In embodiments, segmentation includes solving a level set-based partial differential equation in three dimensions to iteratively expand from an initial boundary to a final boundary. In particular, an additive operator scheme, or other semi-implicit scheme, can be used to solve the partial differential equation, advantageously with all dimensions being solved in parallel.

An electroanatomical mapping system models an anatomical (e.g., endocardial) surface bounding an anatomical volume (e.g., a heart chamber). The system receives a three-dimensional ultrasound image containing the volume, segments a blood pool / tissue boundary of the volume in the image, and outputs the segmented boundary as a model of the anatomical surface. In embodiments, segmentation includes solving a level set-based partial differential equation in three dimensions to iteratively expand from an initial boundary to a final boundary. In particular, an additive operator scheme, or other semi-implicit scheme, can be used to solve the partial differential equation, advantageously with all dimensions being solved in parallel.

An implant insertion system including a tissue expander or separator including an inflatable balloon with a curved posterior side when inflated and an implant having a curved posterior side when positioned against an anatomical surface, wherein the curved posterior side of the implant substantially matches the curved posterior side of the tissue expander. The implant can have an anterior side substantially similar to the posterior side. The implant insertion system can have an injector configured to insert the implant into a target location.

The present application relates to systems and methods for intelligent seed registration. The present application provides a method of registering an anatomical dataset used during a medical procedure. The method can include accessing a first model point set of a patient anatomy of interest, and intraoperatively acquiring a second model point set by visualizing a portion of the patient's anatomical surface with a visual probe. The method can further include extracting system information including kinematic information and / or setup information from a robotic arm of a medical system, and generating an initial seed transform based on the extracted system information. Thereafter, the method can include applying the initial seed transform to the first model point set, and generating a first registration between the first model point set and the second model point set to allow an operator to view and use both model and actual information.

Methods for assessing a skin surface of a patient and associated systems and devices are described herein. A method configured in accordance with embodiments of the present technology can include, for example, receiving a three-dimensional data set representative of the patient's skin surface and determining a boundary of a feature of the patient's skin in the three-dimensional data set. The method can further include determining, with a processor, a three-dimensional surface area of the feature within the boundary. In some embodiments, the method can also include identifying a plurality of sub-regions within the boundary and identifying one or more tissue types in each sub-region.

A system is configured to determine, based on data received from an active imaging device configured to capture imagery of an internal view of a body, a depth, relative to the active imaging device, of an anatomical surface depicted in the imagery captured by the active imaging device of the internal view of the body, determine a spatial pose of the active imaging device as the active imaging device captures the imagery of the internal view of the body, and based on the spatial pose of the active imaging device, direct a display device to display, together with an external view of the body, a shape overlay indicative of an extent of a field of view relative to the body and indicative of the depth of the anatomical surface.

Methods may be provided to identify a medical implant from a plurality of medical implants to be fixed to an anatomical surface. Dimensional parameters for each of the plurality of medical implants may be provided, and dimensional parameters corresponding to the anatomical surface may be provided. The dimensional parameters for each of the plurality of medical implants may be compared with the dimensional parameters corresponding to the anatomical surface, and one of the medical implants may be selected from the plurality of medical implants based on comparing the dimensional parameters for each of the plurality of medical implants with the dimensional parameters corresponding to the anatomical surface. An identification of the medical implant selected from the plurality of medical implants may be provided through a user interface. Related devices and computer program products are also discussed.

A system for making a resection of a bone having localized anatomical surface features prior to resection, comprising: a resection guide locator including a body, the body including opposing medial and lateral wings extending outwardly from the body, the body defining a recess being a socket defined by an annular wall, the annular wall including an upper wall, a lower wall, a resection guide having a body defining a resection slot, at least a portion of the resection guide body sized and configured to be received within the recess defined by the resection guide locator.

An example system is configured to obtain anatomical property data representing a property associated with an anatomical surface to be covered by a physical medical element, the anatomical surface being within an interior space of a patient; and determine a set of placement guidance parameters based on the anatomical property data. The set of placement guidance parameters can include one or more parameters configured to guide placement of the physical medical element on the anatomical surface with one or more surgical instruments controlled by a computer-assisted surgical system.

Systems for medical imaging enable real-time visualization of patient vasculature using augmented reality that includes a wearable device positioned on a patient's target body region and incorporates ultrasound transducers and Doppler sensors configured to acquire subsurface vascular structure data and blood flow characteristics. Sensor data is transmitted to a head-worn augmented reality visualization device used by a caregiver. The visualization device includes a camera configured to scan the target body region prior to placement of the wearable device, a display for presenting augmented reality content, and a processor configured to reconstruct a 3D representation of the anatomical surface from the camera data. The processor further fuses the subsurface vascular data with the reconstructed surface representation to generate a real-time, 3D vascular map. The vascular map is rendered as an augmented reality overlay aligned with the patient's body, thereby assisting caregivers with accurate visualization and guidance during vascular access procedures.

A separator for medical applications includes a first contact surface configured for contacting a first anatomical surface of a patient to be imaged, and a second contact surface configured for contacting a second anatomical surface of the patient to be imaged to space the first anatomical surface from the second anatomical surface. The first contact surface is angled relative to the second contact surface. The separator maintains spacing between anatomical surfaces during radiotherapy procedures, potentially reducing radiation exposure to sensitive areas. The separator may comprise air equivalent or radiotransparent materials and can be used in various anatomical regions where skin folds or adjacent body parts need separation for improved therapy results.

Methods may be provided to identify a medical implant from a plurality of medical implants to be fixed to an anatomical surface. Dimensional parameters for each of the plurality of medical implants may be provided, and dimensional parameters corresponding to the anatomical surface may be provided. The dimensional parameters for each of the plurality of medical implants may be compared with the dimensional parameters corresponding to the anatomical surface, and one of the medical implants may be selected from the plurality of medical implants based on comparing the dimensional parameters for each of the plurality of medical implants with the dimensional parameters corresponding to the anatomical surface. An identification of the medical implant selected from the plurality of medical implants may be provided through a user interface. Related devices and computer program products are also discussed.

An ultrasound imaging system and method for rendering volumetric ultrasound data. The method includes accessing, with a processor, an anatomical ultrasound dataset including a volume-of-interest. The method includes, accessing, with the processor, a functional ultrasound dataset including the volume-of-interest. The method includes identifying, with the processor, an anatomical surface from the anatomical ultrasound dataset, wherein the anatomical surface is a three-dimensional non-planar surface. The method includes generating, with the processor, a colorized surface rendering of the anatomical surface, wherein the colorized surface rendering is colorized to represent information from the functional ultrasound dataset. The method includes displaying the colorized surface rendering on a display device.

Surgical guide development based on anatomical surface topology analysis includes determining surface shape variability of a surface of bony anatomy in a region of interest, generating, based on the surface shape variability, a digital guide design of a proposed surgical guide for use against the bony anatomy during a surgical procedure, the generating determining placement and surface coverage for the proposed surgical guide and configuring the proposed surgical guide to have a corresponding footprint and guide features configured to interface with selected features of the surface of the bony anatomy, rating the proposed surgical guide for use against the bony anatomy during the surgical procedure by performing, using the digital guide design, an automated topology-based stability assessment to produce a performance rating for the proposed surgical guide, determining whether the performance rating for the proposed surgical guide satisfies a predefined performance rating threshold, and performing processing based on that determination.

Medical devices may include a patient-engaging section and an instrument-engaging section positioned on a body of the device and the methods of forming such devices. Medical devices described herein may include resection guides, resection guide locators, and / or instruments for use in surgical methods. Devices described herein may have sections that are complementary to a natural anatomical surface of a target area of bone of a predetermined patient. In some instances, a resection guide and resection guide locator may have portions configured to couple the resection guide to the resection guide locator. Resection guides and / or resection guide locators may include openings for receiving an instrument or tool during an operation on the predetermined patient target area of bone.

A medical device has a guide locator and a guide element. The guide locator has a mount body having a conformal surface that is shaped to be complementary to a natural anatomical surface of a patient bone and defining a mount receptacle. The mount body defines a guide receptacle. The guide element includes a guide body having a shape configured to fit with to attach the guide receptacle of the guide locator and a guide slot formed in the guide body. The guide slot includes at least one opening for receiving a tool therethrough. A retention mechanism is configured to hold the guide element within the guide receptacle of the guide locator.

A blood-flow-control apparatus (20) for use with an anatomical surface of a subject that is disposed above a blood vessel, is provided. A compression element (28) is positioned such that a compressing surface (42) of the compression element is in contact with the anatomical surface, and a shaft (25) extends from and disposed perpendicularly with respect to the compression element (28), such that, when the compressing surface (42) of the compression element (28) is in contact with the anatomical surface, the shaft (25) is disposed normal to the anatomical surface. A trigger (22) is operably coupled to the shaft (25) such that, upon respective actuations of the trigger (22), the shaft (25) is advanced distally in a stepwise manner to apply pressure to the blood vessel via the compressing surface (42) of the compression element (28). Other applications are also described.

An example system is configured to instruct a display device to render a virtual medical element representing a physical medical element over a target region within an image of an internal space of a patient, the target region depicting an anatomical surface to be covered by the physical medical element; receive user input while the virtual medical element is rendered over the target region, the user input setting at least one of a pose of the virtual medical element within the image or a size of the virtual medical element; and determine a physical size of the physical medical element based on the user input and depth data of a depth map representing the internal space.

Devices, systems and methods for assessing anatomical surface features are described herein. In some embodiments, a method of assessing a surface feature on a patient's skin surface includes (i) capturing one or more data sets from a patient's skin surface including the skin surface feature, and (ii) determining outline data of the skin surface feature based on at least one of the one or more data sets. The method can further include determining one or more confidence attributes associated with the determined outline data.