42 results about "Endovascular therapy" patented technology

An intravascular therapy guidance system includes a processor circuit in communication with an extravascular imaging device. The processor circuit receives, from the extravascular imaging device, an extravascular image stream. The processor circuit determines a therapy region of a blood vessel in the extravascular image stream and outputs a screen display to a display in communication with processor circuit. The screen display includes the extravascular image stream of the blood vessel including movement of an intravascular therapy device within the blood vessel to deliver an intravascular therapy to the therapy region and a graphical representation of the therapy region overlaid on the extravascular image stream. The processor circuit determines, based on the extravascular image stream, whether the intravascular therapy device is aligned relative to the therapy region to deliver the intravascular therapy and modifies the screen display to indicate whether the intravascular therapy device is aligned to deliver the intravascular therapy.

Disclosed herein are systems and methods for endovascular treatment of clot material within a blood vessel of a human patient. In one embodiment, a system includes a coring element for coring and separating the clot material. The coring element may include a single structure having a first region, a second region, a third region, and a fourth region. The first region is adjacent to a proximal portion of the unitary structure and includes a first mouth configured to core and separate the clot material. The second region is distal to the first region, is substantially tubular, and includes a first plurality of interconnected struts. The third region is distal to the second region and includes a second mouth configured to core and separate a vascular thrombus. The fourth region is distal to the third region, is substantially tubular, and includes a second plurality of interconnected struts.

An endovascular therapy system includes an endovascular device. The endovascular device includes an elongated body configured to be introduced into vasculature of a patient. The endovascular device includes a coil structure at a distal portion of the elongated body. The coil structure includes at least a first coil portion and a second coil portion. The first coil portion can be configured to carry a plurality of electrodes. The second coil portion can be formed from a coiled wire such that the second coil portion together with the coiled wire defines a coiled coil. The coiled wire can extend distally of a distal end of the first coil portion and be configured to anchor the elongated body and the coil structure within the vasculature of the patient.

The invention relates to a dilator (10) for intravascular treatment, which can be moved in a catheter and has a proximal longitudinal end (11), a distal longitudinal end (12), which is tapered in the distal direction, and a shaft (13), wherein the dilator (10) has an inner lumen (14) for receiving a guide wire (20), which opens into a proximal outlet opening (15) and a distal outlet opening (16) for the guide wire (20), wherein the distal outlet opening (16) is arranged at the distal longitudinal end (12) of the dilator (10), characterised in that the proximal outlet opening (15) is arranged on a proximal section (13a) of the dilator (10), in that the guide wire (20) passes intracorporeally through the proximal outlet opening (15), wherein a transport wire (30) is connected to the proximal longitudinal end (11) of the dilator (10) such that the dilator (10) can be moved in the catheter by the transport wire (30).

Embodiments of catheters, methods, and devices for endovascular treatment of a blood vessel uses a catheter. The catheter includes a catheter body including a distal end and a distal tip assembly (100) movably connected to the catheter body at the distal end of the catheter body. The distal tip assembly includes a plurality of tips (102. 104. 106) that nest together and of which each comprises a fistula forming element and a support shaft. At least one of the plurality of tips is independently movable relative to an adjacent one of the plurality of tips between a retracted position and an extended position to provide a treatment region therebetween. WO

The invention is entitled "Systems for assisting delivery of mechanical endovascular therapeutic devices." The invention discloses a system for assisting delivery of mechanical endovascular therapeutic devices, wherein the system includes a first auxiliary device having a first linear sliding mechanism. The linear sliding mechanism includes a first non-slidable segment, a first slidable segment that is linearly displaceable relative to the first non-slidable segment, and a first tensioning device connected to the first slidable segment for movement therewith; the first tensioning device is convertible between an unsecured state and a secured state. A first securing hub is fixedly attached to the first non-slidable segment, wherein the first securing hub is convertible between an unsecured state and a secured state. The system can also include a second auxiliary device. The auxiliary devices provide enhanced control over movement of a delivery wire and / or a guide catheter.

The invention relates to a method and device for predicting the risk of restenosis after intravascular treatment of a TARAS patient, a storage medium and a program product. The method comprises the following steps: acquiring target preoperative clinical data and target iconography characteristics collected for a detection object; calculating a risk score based on the target preoperative clinical data and the target iconography features; the risk score is compared with a first threshold value, an auxiliary prediction result of the detection object is determined according to a comparison result, and the auxiliary prediction result is used for representing the restenosis risk of the detection object. The invention aims to provide a model for evaluating the post-PTA restenosis risk of a severe TARAS patient by using anatomical risk factors and other clinical risk factors, so that the risk of an intravascular treatment technology can be quantified, and the clinical popularization and application of the intravascular treatment technology can be promoted.

Systems and methods are provided for delivering a therapeutic agent to a target tissue via a vessel and sensing, in vivo, a characteristic of the therapeutic agent in the vessel. The characteristic indicates a concentration of the therapeutic agent in the vessel. The system preferably includes an occluder. The method preferably includes infusing the therapeutic agent distal of the occluder while the occluder is in an expanded configuration in the vessel.

An endovascular medical device system includes an elongated body, an expandable structure at a distal portion of the elongated body, and one or more electrodes. The expandable structure includes an expandable frame defining one or more apertures and each electrode is mechanically coupled to the expandable structure via a respective aperture of the one or more apertures. In some examples, each electrode defines a first maximum dimension in a first direction along a central longitudinal axis of the expandable structure and a second maximum dimension in a second direction transverse to the first direction, wherein the first maximum dimension is greater than the second maximum dimension. In some examples, when each electrode is mechanically coupled to the expandable structure, the respective aperture is configured to limit rotation of the respective electrode relative to the expandable structure.

An intravascular treatment device includes a catheter (101), and an exterior cage (102) fixed to a distal end of the catheter, the exterior cage radially expandable and including a stepped geometry portion of reduced diameter at a distal end thereof. The intravascular treatment device further includes a rod (107) extending within the catheter, the rod movable within the catheter so to extend through the distal end of the catheter into the exterior cage, and an inner actuation feature (105) having a proximal end fixed to the rod. The inner actuation feature is movable by the rod between a retracted state in which the inner actuation feature is contained within exterior cage and the cage is not radially expanded, and an advanced state in the inner actuation feature extends through the stepped geometry portion of the exterior cage so as to radially expand the exterior cage.

The present invention relates to an internal duct and fixing system (100) for branches for endovascular endoprostheses for endovascular treatment of aneurysms or dissections of the aorta, comprising (i) an endoprosthesis (200) provided with windows (210, 220, 230, 240), (ii) one or more occlusions (215, 225, 235, 245), fixed to the endoprosthesis (200) by means of suture (216, 226, 236, 246), reversibly occluding the windows (210, 220, 230, 240), and a set of fixing and duct elements (300) that forms one or more internal channels of the endoprosthesis (200), preferably in the region adjacent to one of the windows (210, 220, 230, 240). The present invention also relates to a corresponding endoprosthesis (200).

There is provided a device (100) for removing a clot from a vessel. The device (100) comprises a catheter body (110), a set of holes (120) and a lumen (130). The catheter body (100) is for insertion into the vessel. The catheter body (110) is attachable to an aspirator at a proximal end (111) of the catheter body (110). The catheter body (110) comprises an interior surface and an exterior surface. The catheter body (110) comprises a lumen (130) extending between the proximal end (111) and a distal end (112). The lumen (130) is configured to receive a guidewire (300). The set of holes (120) is towards the distal end (112) of the catheter body (110) in a distal region. The set of holes (120) is configured to engage the clot by suction. The set of holes (120) is arranged circumferentially on the catheter body (110). The distal region comprises a valve region (114) including a valve (115). The valve (115) is configured to close in response to pressure within the lumen being below a threshold value.

The present disclosure relates to medical devices including occlusion devices, clot retrieval systems, and stents. More particularly, the medical devices described herein measure characteristics for intravascular treatment sites. The medical devices may include pressure sensors and / or length sensors that may be used to determine the effectiveness of the medical devices during or after treatment. These sensors may be particularly helpful when used on an occlusion device or a clot removal device.

An intravascular therapy guidance system includes a processor circuit in communication with an extravascular imaging device. The processor circuit receives, from the extravascular imaging device, an extravascular image stream. The processor circuit determines a therapy region of a blood vessel in the extravascular image stream and outputs a screen display to a display in communication with processor circuit. The screen display includes the extravascular image stream of the blood vessel including movement of an intravascular therapy device within the blood vessel to deliver an intravascular therapy to the therapy region and a graphical representation of the therapy region overlaid on the extravascular image stream. The processor circuit determines, based on the extravascular image stream, whether the intravascular therapy device is aligned relative to the therapy region to deliver the intravascular therapy and modifies the screen display to indicate whether the intravascular therapy device is aligned to deliver the intravascular therapy.

An endovascular therapy system includes an endovascular device. The endovascular device includes an elongated body configured to be introduced into vasculature of a patient. The endovascular device includes an expandable structure at a distal portion of the elongated body. The therapy system (e.g., the endovascular device) can include a plurality of electrodes carried by the expandable structure. The elongated body can be configured to transform between a body delivery configuration and a body deployed configuration. In the body deployed configuration, the distal portion of the elongated body defines a coiled portion. The coiled portion can be located proximal of the expandable structure. The coiled portion is configured to limit or prevent an axial force applied to the elongated body from being transferred to the expandable structure or the plurality of electrodes when the expandable structure and the elongated body are positioned within the vasculature of the patient.

The present disclosure relates to medical devices including occlusion devices, clot retrieval systems, and stents. More particularly, the medical devices described herein measure characteristics for intravascular treatment sites. The medical devices may include pressure sensors and / or length sensors that may be used to determine the effectiveness of the medical devices during or after treatment. These sensors may be particularly helpful when used on an occlusion device or a clot removal device.

An endovascular medical device system includes an expandable structure including a plurality of connected struts defining a tubular body. In some examples, the tubular body extends between a proximal end and a distal end. The endovascular medical devices system includes a plurality of electrode attachment elements, each electrode attachment element connected to at least one respective strut. The endovascular medical devices system includes an array of electrodes, each respective electrode of the array of electrodes coupled to the expandable structure via a respective electrode attachment element. In some examples, the array of electrodes generally faces in a radial direction outward from the expandable structure. In some examples, the expandable structure includes a radiopaque distal extension extending distally of the tubular body and is generally circumferentially aligned with the array of electrodes. In some examples, the radiopaque distal extension is configured to indicate the radial direction of the electrodes.

Disclosed herein are systems and methods for intravascular treatment of clot material within a blood vessel of a human patient. In one embodiment, a system includes a coring element for coring and separating the clot material. The coring element can include a unitary structure having a first region, a second region, a third region, and a fourth region. The first region is proximal to the unitary structure and includes a first mouth configured to core and separate the clot material. The second region is distal to the first region, is generally tubular, and includes a first plurality of interconnected struts. The third region is distal to the second region and includes a second mouth configured to core and separate a vascular thrombus. The fourth region is distal to the third region, is generally tubular, and includes a second plurality of interconnected struts.

A stent graft apparatus for endovascular treatment of aortic diseases includes a balloon-expandable section and a self-expanding section connected by radial sutures to form a unitary device. The balloon-expandable section comprises a metallic framework configured for deployment via balloon inflation and includes a plurality of radially equidistant radiopaque markers for fluoroscopic visualization. The self-expanding section comprises a shape-memory material configured to exert continuous radial force upon release. The connected sections are sequentially deployed through a catheter-based delivery system, allowing the balloon-expandable section to anchor the graft precisely at the treatment site before the self-expanding section is released to conform to the vessel anatomy. This configuration facilitates both accurate positioning and anatomical adaptability, reducing the risk of migration and improving fixation in complex aortic regions. The apparatus may be used to treat aneurysms, dissections, or injuries in various segments of the aorta.

An endovascular device includes a plurality of conductor wires, a lead body, and a plurality of electrodes. The lead body includes at least a first lead body portion, a second lead body portion, and a third lead body portion. Each electrode of the plurality of electrodes is electrically connected to at least one conductor wire of the plurality of conductor wires. The first lead body portion defines a first lead body portion longitudinal axis, the second lead body portion defines a second lead body portion longitudinal axis, and the third lead body portion defines a third lead body portion longitudinal axis. In a first configuration, the second lead body portion longitudinal axis and the third lead body portion longitudinal axis are coaxial. In a second configuration, the second lead body portion longitudinal axis and the third lead body portion longitudinal axis are axially offset.

This application relates to the field of intelligent healthcare, specifically to a method, device, and program product for assessing vascular occlusion reperfusion therapy based on thrombus permeability. It includes acquiring brain images of patients with acute ischemic stroke; classifying the responsible vessel in the brain images to determine whether it is large vessel occlusion, medium vessel occlusion, or distal small vessel occlusion; when the determination result is medium vessel occlusion, thrombus region localization and measurement are performed on the brain images, thrombus permeability is calculated, and reperfusion therapy is assessed based on the thrombus permeability to obtain an assessment result for intravenous thrombolysis or endovascular therapy. This application has significant clinical application value.

The invention relates to a dilator (10) for intravascular treatment, in particular for the treatment of stenoses (100), which is movably arranged in a catheter (40) during use and has at least one proximal longitudinal end (11), a distal longitudinal end (12) which is tapered in the distal direction, and a shaft (13) which extends between the proximal and distal longitudinal ends (11, 12), wherein the dilator (10) has an inner lumen (14) for receiving a guide wire (20) which opens into a proximal and a distal exit opening (15, 16) for the guide wire (20), wherein the distal exit opening (16) is arranged at the distal longitudinal end (12) of the dilator (10), characterized in that the proximal exit opening (15) is arranged on a proximal section (13a) of the dilator. (10) is arranged so that the guide wire (20) passes through the proximal exit opening (15) intracorporeally during use,wherein a transport wire (30) is connected to the proximal longitudinal end (11) of the dilator (10) such that the dilator (10) is movable through the transport wire (30) in the catheter (40).

A medical device for intravascular treatment, in particular a thrombectomy device, with an at least partially tubular mesh structure which is convertible from a radially compressed state to a radially expanded state and has a multiplicity of cell-forming webs, wherein the mesh structure includes, at a distal end portion, at least two pins which are connected to the webs and have a free end, wherein the pins, in a first longitudinal portion, are pressed flat onto one another at least in parts in order to fix the pin cross-sectional position, and / or the pins, in a second longitudinal portion, are form-fittingly connected to one another, particularly engaging in one another, in order to fix the pin longitudinal position.

Abstract Systems and methods for the intravascular treatment of clot material within a blood vessel of a human patient are disclosed herein. A device in accordance with embodiments of the present technology can include, for example, a plurality of interconnected struts forming a unitary structure having a proximal portion and a distal portion. The struts can form a plurality of first cells in the proximal portion and a plurality of second cells, smaller than the first cells, in the distal portion. The device can be pulled against clot material within a blood vessel to engage, disrupt, and / or capture the clot material Abstract wo 2021 / 076954 PCT / US2020 / 056067 2 / 12 108 105a 131b 105b 131a 104 106 102 Fig. 1C 20 26 21 40 13 06 A ug 2 02 6 W O 2 0 2 1 / 0 7 6 9 5 4 P C T / U S 2 0 2 0 / 0 5 6 0 6 7 2 / 1 2 0 6 A u g 2 0 2 6 2 0 2 6 2 1 4 0 1 3 1 0 5 a 1 0 2 1 3 0

The invention relates to the field of intelligent medical treatment, in particular to a vascular occlusion reperfusion treatment evaluation method and device based on thrombus permeability and a program product. Comprising the following steps: acquiring a brain image of a patient with acute ischemic stroke; performing responsible blood vessel grading judgment on the brain image to obtain large blood vessel occlusion or medium blood vessel occlusion or far-end small blood vessel occlusion, and when the judgment result is medium blood vessel occlusion, performing thrombus area positioning and measurement on the brain image, calculating thrombus permeability, and determining the thrombus permeability. And performing reperfusion treatment evaluation through the thrombus permeability to obtain an evaluation result of intravenous thrombolysis treatment or intravascular treatment. The application has good clinical application value.

An endovascular medical device system includes an elongated body configured to be introduced in a blood vessel of a patient. The system includes an expandable structure at a distal portion of the elongated body. In some examples, the expandable structure includes a plurality of interconnected struts and extends from an expandable structure proximal end to an expandable structure distal end. The system further includes a plurality of electrodes carried by the expandable structure. The system includes further a plurality of conductor wires electrically connected to respective electrodes. In some examples, the plurality of conductor wires collectively form a multi-wire coil, the multi-wire coil extending along at least a portion of the elongated body and extending distally of the expandable structure proximal end. In some examples, a subset of conductor wires of the plurality of conductor wires branch out from the multi-wire coil to the respective electrodes.

The endovascular treatment device 10 includes a catheter 12 and a plurality of parallel cutting instruments 14, 16, 18 disposed at at least the distal end of the catheter. Each cutting instrument is configured to affect a portion of a clot disposed within a blood vessel through which the catheter is advanced. Each cutting instrument is independently advanceable into the clot.