62 results about "Intravascular imaging" patented technology

A system includes a processor circuit that receives intravascular imaging data from an intravascular imaging catheter, an x-ray image from an x-ray imaging device, and intravascular pressure data from an intravascular pressure-sensing guidewire. The processor circuit correlates the intravascular imaging data and the intravascular pressure data to locations along a body lumen shown in the x-ray image. The processor circuit generates a longitudinal view of the body lumen based on the intravascular imaging data and outputs a screen display including the longitudinal view of the body lumen with an overlaid graphical representation corresponding to the intravascular pressure measurements.

An apparatus includes a processor configured for communication with an intravascular imaging catheter and a display. The processor controls the catheter to obtain intravascular images while the catheter is moved through a blood vessel including a lesion. The processor generates, based on the images, a comparison view for planning a stent to provide treatment for the lesion including a first stent option area and a second stent option area displayed simultaneously on the display. The first stent option area includes a visual representation of the blood vessel, a first virtual stent with a first length, intravascular images or metrics associated with the first stent length. The second stent option area includes the visual representation of the blood vessel, a second virtual stent overlaid on the visual representation and comprising a different, second length; and intravascular images or metrics associated with the second stent length.

The utility model belongs to the technical field of interventional catheters, and discloses an interventional intravascular imaging catheter. The interventional intravascular imaging catheter comprises a catheter body, an imaging component and a shaft sleeve, the catheter body comprises a shell and a sheathing canal assembly, the near end of the sheathing canal assembly is connected into the far end of the shell, the imaging component is arranged in the catheter body and can rotate relative to the catheter body and move in the axial direction of the catheter body, and the imaging component comprises an optical fiber plug and an imaging assembly; the optical fiber plug is located in the shell, the near end of the imaging assembly is inserted into the optical fiber plug, the far end of the imaging assembly penetrates through the shell and extends into the far end of the sheathing canal assembly, and the shaft sleeve is fixedly arranged in the shell and arranged outside the imaging assembly in a sleeving mode. According to the interventional intravascular imaging catheter, the shaft sleeve can support the imaging assembly to a certain degree, jumping of the imaging assembly in the whole high-speed rotation withdrawing process is reduced as much as possible, and therefore lens shaking at the far end of the imaging assembly is reduced, and imaging quality is guaranteed.

An intravascular imaging system includes an imaging catheter, a first imaging device that is translatable and rotatable within the imaging catheter and a second imaging device that is translatable and rotatable within the imaging catheter. A connector assembly is disposed adjacent to a proximal end region of the imaging catheter and is configured to connect the imaging catheter to a control unit. The connector assembly includes a first pair of electrical connectors for connecting the first imaging device to the control unit and a second pair of electrical connectors for connecting the second imaging device to the control unit. The imaging catheter may further include an optical imaging device and an optical fiber cable that extends between the optical imaging device and the connector assembly.

In an exemplary example, methods and systems are disclosed herein for treating vascular disease by implanting a stent within a vessel and using intravascular imaging to determine and ensure that the stent is properly implanted and produces the desired and effective results. For example, a system can obtain optical shape sensing data and intravascular imaging data of a vessel. The system can process the optical shape sensing data and the intravascular imaging data to generate three-dimensional models and images of the vessel immediately before and after the stent is implanted in the vessel and make an exact comparison of the before and after images to ensure that the stent is properly implanted and will produce or is producing the desired and effective results. The exact comparison can be based on a derived diameter associated with the location of the stent placement in the vessel, which is based on the generated pre- and post- three-dimensional models.

The present disclosure provides a system for localizing the position of an endovascular probe and collecting high-resolution images of the anatomy surrounding the probe. In particular, a switchable endovascular imaging antenna / probe and related devices are disclosed, which are conveniently switchable between a configuration that allows the localization with high precision of the distal tip of an endovascular probe, and another configuration that allows imaging in the locality of the probe tip. Embodiments are also disclosed capable of delivering ablation therapy.

An intravascular imaging system includes an imaging catheter, a first imaging device that is translatable and rotatable within the imaging catheter and a second imaging device that is translatable and rotatable within the imaging catheter. A connector assembly is disposed adjacent to a proximal end region of the imaging catheter and is configured to connect the imaging catheter to a control unit. The connector assembly includes a first pair of electrical connectors for connecting the first imaging device to the control unit and a second pair of electrical connectors for connecting the second imaging device to the control unit. The imaging catheter may further include an optical imaging device and an optical fiber cable that extends between the optical imaging device and the connector assembly.

An intravascular imaging device may include a shaft with proximal and distal end regions, and an imaging assembly movably disposed within the shaft. The imaging assembly may comprise a drive cable, a housing coupled to the drive cable's distal end, a transducer within the housing, and a coaxial cable extending through the drive cable and electrically coupled to the transducer. The coaxial cable may be electrically coupled to a connection point on an upper surface of the transducer and electrically coupled to the housing. The device may include different configurations of the coaxial cable, such as a first member electrically coupled to the connection point and a second member electrically coupled to the housing. The housing may have various regions, including a cavity for receiving the transducer.

The present disclosure provides to process intravascular images, such as intravascular ultrasound (IVUS) image frames, to detect stents represented in the images and to group detected stents into stent segments. The grouped stent segments can be visually represented as part of a graphical user interface (GUI) and a user can navigate through the stent segments via the GUI to review stent assessment information on a per stent segment basis.

A system includes a processor circuit in communication with an intraluminal imaging device and a laser atherectomy device. An intraluminal imaging procedure is performed within a lumen with the intraluminal imaging device. The processor circuit receives the intraluminal images acquired. The intraluminal images are analyzed to determine a tissue classification for each intraluminal image. One or more laser atherectomy settings are determined for each intraluminal image based on the tissue classification. The intraluminal images and corresponding tissue classifications and laser atherectomy settings are then associated with the location at which each intraluminal image was acquired along the lumen. A laser atherectomy procedure is then performed within the same lumen. As the laser atherectomy device is moved to positions within the vessel, the laser atherectomy setting associated with each position is retrieved from the memory and automatically applied to the laser atherectomy device.

To provide a suitable intravascular imaging display system.SOLUTION: An intravascular imaging display system having control circuitry and video output circuitry is provided. The video output circuit is configured to generate a display output including a user interface. The user interface includes a plurality of graphical elements associated with the vessel being imaged. The plurality of graphical elements includes a first detected feature portion defined by a first graphical indicator and a second detected feature portion defined by a second graphical indicator. The first graphic indicator is visually distinct from the second graphic indicator. The first detected feature portion and the second detected feature portion are assigned by the control circuit to indicate one or more locations along the vessel wall based on whether the attenuance of the ultrasound return signal exceeds a threshold.SELECTED DRAWING: Figure 1

An intravascular imaging device may include a shaft with proximal and distal end regions, and an imaging assembly movably disposed within the shaft. The imaging assembly may comprise a drive cable, a housing coupled to the drive cable's distal end, a transducer within the housing, and a coaxial cable extending through the drive cable and electrically coupled to the transducer. The coaxial cable may be electrically coupled to a connection point on an upper surface of the transducer and electrically coupled to the housing. The device may include different configurations of the coaxial cable, such as a first member electrically coupled to the connection point and a second member electrically coupled to the housing. The housing may have various regions, including a cavity for receiving the transducer.

Intravascular imaging devices as well as methods for making and using intravascular imaging devices are disclosed. An intravascular imaging device may include a catheter shaft including a hypotube region and an imaging window region. The hypotube region may include a slotted section having a plurality of slots formed therein. The slotted section may include a plurality of discrete zones including a first zone, a second zone disposed proximal of the first zone, a third zone disposed proximal of the second zone, a fourth zone disposed proximal of the third zone. An imaging core may be disposed within the catheter shaft.

In exemplary examples, methods and systems for treating vascular disease by implanting a stent within the vasculature and using intravascular imaging to determine and ensure that the stent was property implanted and producing a desirable and effective results is disclosed herein. For example, a system may obtain optical shape sensing data and intravascular imaging data for a blood vessel. The system may process the optical shape sensing data and the intravascular imaging data to generate a three-dimensional model and image of the blood vessel immediately before and immediately after stent implantation into the blood vessel, and perform a precise comparison of the before and after images to ensure that the stent was properly implanted and will produce or is producing a desirable and effective result. The precise comparison may be based on a derived diameter associated with the location at which the stent is placed in the blood vessel based on the generated pre and post generated three-dimensional models.

A system is provided that includes a processor circuit in communication with an intravascular imaging catheter. The processor circuit is operable to: receive an intravascular imaging signal; perform, tissue characterization to identify a plaque component of the blood vessel; generate an intravascular image; receive an extravascular image of a blood vessel; co-register the intravascular image and the extravascular image to associate the intravascular image with a location of the blood vessel in the extravascular image; determine, if a spatial distribution of the plaque component within the intravascular image satisfies a criterion associated with the spatial distribution; and when the spatial distribution satisfies the criterion, output a screen display comprising: the extravascular image; and a first indicator at the location of the blood vessel in extravascular image. The first indicator is representative of the spatial distribution of the plaque component. Associated methods and devices are also provided.

Systems, devices, and methods for providing procedure-specific workflow guidance are provided. The workflow guidance may include providing selectable options on a display device to a user including a selectable option to select a target vessel and a prompt to move an intravascular imaging device within the selected target vessel. Imaging data is received from the intravascular imaging device within the selected target vessel. The workflow guidance may be used to identify an area of interest within the selected target vessel and automatically display vessel measurements corresponding with the area of interest on the display device.

The present invention provides intravascular imaging probes including a variety of material support members or bases, as well as related devices, systems, and methods. According to one embodiment, a lumenal intravascular ultrasound imaging catheter includes a flexible elongate member configured to be positioned within a body lumen of a patient, a support member coupled to a distal portion of the flexible elongate member, and an ultrasound scanner assembly positioned about the support member. The support member includes a hollow interior member comprising a first material, and a first annular member positioned about a periphery of the hollow interior member at a proximal portion of the hollow interior member. The first annular member extends radially outward from the hollow interior member and comprises a second material different from the first material.

In part, this invention relates to an automated method for detecting branching vessels in intravascular imaging using intravascular modal imaging such as OCT, IVUS, or other imaging modalities. In one embodiment, representations of A-lines and frames generated by the intravascular imaging system are used to identify candidate branches of the vessel. One or more operators (such as filters) can be applied to remove false positives associated with other detections.

In part, the disclosure relates to method of displaying a representation of an artery. The method may include storing an intravascular image dataset in a memory device of a diagnostic imaging system, the intravascular image dataset generated in response to intravascular imaging of a segment of an artery; automatically detecting lumen boundary of the segment on a per frame basis; automatically detecting EEL and displaying a stent sizing workflow. In part, the disclosure also relates to automatically detecting one or more regions of calcium relative to lumen boundary of the segment; calculating an angular or circumferential measurement of detected calcium for one or more frames; calculating a calcium thickness of detected calcium for one or more frames; and displaying the calcium thickness and the angular or circumferential measurement of detected calcium for a first frame of the one or more frames.

A system includes a processor circuit that receives intravascular imaging data from an intravascular imaging catheter, an x-ray image from an x-ray imaging device, and intravascular pressure data from an intravascular pressure-sensing guidewire. The processor circuit correlates the intravascular imaging data and the intravascular pressure data to locations along a body lumen shown in the x-ray image. The processor circuit generates a longitudinal view of the body lumen based on the intravascular imaging data and outputs a screen display including the longitudinal view of the body lumen with an overlaid graphical representation corresponding to the intravascular pressure measurements.

The present invention relates to a gripper device with a holding structure (10) capable of varying its grip from relaxed to light and form gripping positions, the device offers adaptability to different levels of environmental materials encountered within blood vessels This feature enables controlled manipulation and secure engagement with tissues or other materials, enhancing procedural safety and effectiveness. Furthermore, the gripper device incorporates an aspiration tube (15) that operates in conjunction with the holding structure (10) during lighter gripping conditions, facilitating the removal of materials from the vessel environment as necessary. The device is equipped with an imaging module (50), such as an intravascular ultrasound probe (70), which provides real-time data and imaging feedback to guide and monitor procedures accurately.

In part, the disclosure relates to method of displaying a representation of an artery. The method may include storing an intravascular image dataset in a memory device of a diagnostic imaging system, the intravascular image dataset generated in response to intravascular imaging of a segment of an artery; automatically detecting lumen boundary of the segment on a per frame basis; automatically detecting EEL and displaying a stent sizing workflow. In part, the disclosure also relates to automatically detecting one or more regions of calcium relative to lumen boundary of the segment; calculating an angular or circumferential measurement of detected calcium for one or more frames; calculating a calcium thickness of detected calcium for one or more frames; and displaying the calcium thickness and the angular or circumferential measurement of detected calcium for a first frame of the one or more frames.

Devices and methods are provided for processing an intravascular image of a blood vessel of one imaging modality, and generating, extracting, and adapting features according to the other imaging modality to generate a hybrid image including features from two modalities. Devices and methods are provided for training a depth generative model to adapt domain-specific features from one intravascular imaging modality (e.g., OCT, etc.) to another intravascular imaging modality (e.g., IVUS), and integrating the adapted features into the image from the another intravascular imaging modality.

The application discloses a kind of based on intravascular imaging optimization three-dimensional vascular model interframe interpolation method;Obtain the sequence image group collected by intravascular imaging technology;And each frame image in sequence image group is carried out denoising processing;Using segmentation algorithm extracts the lumen boundary in each frame image, obtains the two-dimensional profile sequence image group of vascular lumen with frame data;Interpolation times are calculated;According to interpolation times, difference image group is generated, and according to the frame data of each image in difference image group, it is inserted into two-dimensional profile sequence image group;According to the last obtained two-dimensional profile sequence image group, generate high-resolution three-dimensional vascular model.The application is obtained by the frame interpolation technology of image collected by intravascular imaging technology, and the frame distance of adjacent image is reduced, and the continuity and smoothness of three-dimensional vascular model are improved.

The invention discloses an automatic pretreatment method for constructing a fluid domain grid based on a blood vessel wall facet. Comprising the steps that an intravascular imaging device generates a three-dimensional blood vessel wall facet file and converts the blood vessel wall facet file into a. Obj format; identifying and processing blood vessel wall facets formed in the blood vessel wall facet file, identifying openings, and numbering the openings in sequence; repairing each identified opening to form a watertight facet with a color attribute; and outputting the three-dimensional watertight blood fluid domain body grid. According to the method, the fluid domain body mesh is directly constructed based on the facet information, secondary processing such as curved surface fitting and smoothing on the blood vessel wall is not needed, the precise structure of the blood vessel lumen is kept, and subsequent high-precision numerical calculation is facilitated. The boundary information is determined by marking the repairing facet, manual analysis and boundary appointing through an interactive interface are not needed, the processing steps are simplified, the pretreatment time is shortened, and the operation complexity is reduced.

Intravascular imaging devices and methods for making and using intravascular imaging devices are disclosed. An example intravascular imaging device may include a catheter shaft assembly including a telescoping assembly and a catheter body. The catheter body may include an imaging window and a distal end region having a first guidewire lumen formed therein. An imaging core may be disposed within the catheter shaft assembly. A distal shaft member may be disposed along an outer surface of the catheter body. The distal shaft member may have a second guidewire lumen formed therein. The intravascular imaging device may also include rod having a first end region coupled to the distal shaft member and a second end region coupled to the telescoping assembly.

Intravascular imaging catheters are provided that include a distal sheath portion having a lumen that is configured to optionally receive a guidewire or an imaging assembly. The distal sheath portion may be configured to have dimensions such that when a guidewire is inserted through the lumen and extends through a distal exit port, the distal sheath portion may be employed as a microcatheter. External tissue may be imaged at a location at or near the distal end of the catheter, enabling, for example, the controlled imaging of a total occlusion, and the positioning of the distal end (and guidewire) within a true lumen associated with a total occlusion. A structural stop may be provided at or near the distal end of the distal sheath portion to prohibit extension of the imaging assembly out of the distal exit port, while permitting the extension of the guidewire through the distal exit port.