111 results about "Endovascular therapy" patented technology

Systems and methods for the intravascular treatment of clot material within a blood vessel of a human patient are disclosed herein. A method in accordance with embodiments of the present technology can include, for example, positioning a distal portion of a catheter proximate to the clot material within the blood vessel. The method can further include coupling a pressure source to the catheter via a tubing subsystem including a valve or other fluid control device and, while the valve is closed, activating the pressure source to charge a vacuum. The valve can then be opened to apply the vacuum to the catheter to thereby aspirate at least a portion of the clot material from the blood vessel and into the catheter.

A system to provide endovascular support for patients. The system includes a processor configured to receive, from a medical imaging device, a pre-treatment vessel roadmap and medical images acquired in response to an endovascular therapy performed on a patient, and obtain endovascular treatment parameters, including image-based endovascular treatment parameters based on features of the medical images. Such endovascular treatment parameters include a geometry and location of an endovascular therapy device within a vessel of the patient. The processor is further configured to predict tissue characteristics of a first lesion based on the endovascular treatment parameters and generate a map of the first lesion based on the pre-treatment vessel roadmap and the predicted tissue characteristics of the first lesion.

Systems and methods for the intravascular treatment of clot material within a blood vessel of a human patient are disclosed herein. A method in accordance with embodiments of the present technology can include, for example, engaging an interventional device of a catheter system with clot material in a blood vessel and withdrawing the interventional device and the portion of the clot material through a guide catheter. In some embodiments, the catheter system can include an attachment / valve member coupled to a proximal portion of the guide catheter, and the method can include unsealing the attachment / valve member to facilitate withdrawing the interventional device through the attachment / valve member without significant retention of clot material within the attachment / valve member. The method can further include resealing and aspirating the guide catheter before advancing another interventional device to the clot material to again engage and remove clot material from the blood vessel.

Systems and methods for the intravascular treatment of clot material within a blood vessel of a human patient are disclosed herein. A method in accordance with embodiments of the present technology can include, for example, positioning a distal portion of a catheter proximate to the clot material within the blood vessel. The method can further include coupling a pressure source to the catheter via a tubing subsystem including a valve or other fluid control device and, while the valve is closed, activating the pressure source to charge a vacuum. The valve can then be opened to apply the vacuum to the catheter to thereby aspirate at least a portion of the clot material from the blood vessel and into the catheter.

Systems and methods for the intravascular treatment of clot material within a blood vessel of a human patient are disclosed herein. A method in accordance with embodiments of the present technology can include, for example, positioning a distal portion of a catheter proximate to the clot material within the blood vessel. The method can further include coupling a pressure source to the catheter via a tubing subsystem including a valve or other fluid control device and, while the valve is closed, activating the pressure source to charge a vacuum. The valve can then be opened to apply the vacuum to the catheter to thereby aspirate at least a portion of the clot material from the blood vessel and into the catheter.

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.

Systems and methods for removal of thrombus from a blood vessel in a body of a patient are disclosed herein. The method can include: providing a thrombus extraction device including a proximal self-expanding member formed of a unitary fenestrated structure, a distal substantially cylindrical portion formed of a net-like filament mesh structure, and an inner shaft member connected to a distal end of the net-like filament mesh structure; advancing a catheter constraining the thrombus extraction device through a vascular thrombus, deploying the thrombus extraction; retracting the thrombus extraction device to separate a portion of the thrombus from the vessel wall and to capture the portion of the thrombus within the net-like filament mesh structure; and withdrawing the thrombus extraction device from the body to remove thrombus from the patient.

Systems and methods for the intravascular treatment of clot material within a blood vessel of a human patient are disclosed herein. A method in accordance with embodiments of the present technology can include, for example, engaging an interventional device of a catheter system with clot material in a blood vessel and withdrawing the interventional device and the portion of the clot material through a guide catheter. In some embodiments, the catheter system can include an attachment / valve member coupled to a proximal portion of the guide catheter, and the method can include unsealing the attachment / valve member to facilitate withdrawing the interventional device through the attachment / valve member without significant retention of clot material within the attachment / valve member. The method can further include resealing and aspirating the guide catheter before advancing another interventional device to the clot material to again engage and remove clot material from the blood vessel.

A device and method for intravascular treatment of an embolism, and particularly a pulmonary embolism, is disclosed herein. One aspect of the present technology, for example, is directed toward a clot treatment device that includes a support member having a plurality of first clot engagement members and second clot engagement members positioned about the circumference of a distal portion of the support member. In an undeployed state, individual first clot engagement members can be linear and have a first length, and individual second clot engagement members can be linear and have a second length that is less than the first length. The clot engagement members can be configured to penetrate clot material along an arcuate path and hold clot material to the clot treatment device.

Systems and methods for removal of thrombus from a blood vessel in a body of a patient are disclosed herein. The method can include: providing a thrombus extraction device including a proximal self-expanding member formed of a unitary fenestrated structure, a distal substantially cylindrical portion formed of a net-like filament mesh structure, and an inner shaft member connected to a distal end of the net-like filament mesh structure; advancing a catheter constraining the thrombus extraction device through a vascular thrombus, deploying the thrombus extraction; retracting the thrombus extraction device to separate a portion of the thrombus from the vessel wall and to capture the portion of the thrombus within the net-like filament mesh structure; and withdrawing the thrombus extraction device from the body to remove thrombus from the patient.

A vascular therapy apparatus (1) includes an electronic processing device (18) comprising at least one electronic processor (20) programmed to retrieve an intravascular instrument model (40) of an associated intravascular instrument (10) to be used in an intravascular procedure; retrieve a patient model (38) of anatomy including at least vasculature of a patient who is to undergo the intravascular procedure; and before and / or during the intravascular procedure, model a passage of the associated intravascular instrument through the vasculature of the associated patient using the instrument model and the patient model; and output treatment information for the intravascular therapy procedure based on the modeled passage of the associated intravascular instrument through the vascular of the associated patient.

Systems and methods for the intravascular treatment of clot material within a blood vessel of a human patient are disclosed herein. A method in accordance with embodiments of the present technology can include, for example, engaging an interventional device of a catheter system with clot material in a blood vessel and withdrawing the interventional device and the portion of the clot material through a guide catheter. In some embodiments, the catheter system can include an attachment / valve member coupled to a proximal portion of the guide catheter, and the method can include unsealing the attachment / valve member to facilitate withdrawing the interventional device through the attachment / valve member without significant retention of clot material within the attachment / valve member. The method can further include resealing and aspirating the guide catheter before advancing another interventional device to the clot material to again engage and remove clot material from the blood vessel.

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.

In one aspect, a system for endovascular treatment of a blood vessel includes a control unit, an ultrasound device, an actuator, and a catheter having a treatment portion. The ultrasound device is communicatively coupled to the control unit. The ultrasound device includes an ultrasound probe having a subject contact surface. The actuator is coupled to the ultrasound probe and is operable to move the subject contact surface of the ultrasound prove relative to a treatment zone of a subject. The control unit is configured to determine a position of the treatment portion of the catheter as the catheter is advanced through the blood vessel, and move the subject contact surface of the ultrasound probe relative to the treatment zone of the subject with the actuator to follow the position of the catheter as the catheter is advanced through the blood vessel.

In some examples, 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. The expandable structure includes an expandable body portion including a plurality of interconnected struts. The expandable structure further includes a plurality of electrode attachment elements, where each electrode attachment element of the plurality of electrode attachment elements includes a first projection and a second projection branching off of at least one strut of the plurality of interconnected struts. In some examples, the system includes one or more electrodes coupled to the expandable structure via the plurality of electrode attachment elements. In some examples, each electrode of the one or more electrodes is configured to receive the first projection and the second projection to couple the respective electrode to the expandable structure.

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.

A delivery system for deploying an implant includes a delivery catheter, tissue penetrating elements (350) disposed at an open distal end of the delivery catheter, and a guard member (400) including a proximal portion disposed over and movable relative to each tissue penetrating element and the distal end of the delivery catheter, the guard member (400) defining a lumen (405) configured to receive and cover the tissue penetrating elements (350), the lumen defining a longitudinal axis of the guard member, the proximal portion of the guard member transitioning to a split open distal portion adjacent the distal opening of the lumen, the split open distal portion including a contour configured to engage the tissue penetrating elements and deflect the tissue penetrating elements at an angle relative to the longitudinal axis of the guard member when the guard member moves proximally relative to the tissue penetrating elements.

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.

The present invention relates to a training device (50, 100, 200, 300) for surgical procedures for endovascular treatment of aneurysms, comprising: a container (52) having a wall (54) defining a confined chamber (56) and a first access opening (58) in the wall (54), the first access opening (58) configured to allow insertion of a guidewire (17) and / or a guide catheter (26) for endovascular surgery into the container (52); a first tube (62) connected to the container (52) at the first passage opening (58); and a movable element (70) comprising a target (72, 172) and a control member (74) connected to the target (72, 172). The target (72, 172) is disposed within the container (52) and includes a gantry (84, 184) configured to receive the guidewire (17) and / or the guide catheter (26) for endovascular surgery, and the control member (74) at least partially protrudes out of the container (52) through a control opening (76, 82, 83) of a wall (54) of the container (52). A movable element (70) is movably constrained to a wall (54) of the container (52) at the control opening (76, 82, 83) to enable the target (72, 172) to assume a plurality of different positions and / or orientations within the container (52). The invention also relates to a surgical procedure training method for the endovascular treatment of aneurysms, in which such a training device (50, 100, 200, 300) is used, and to the use of the device (50, 100, 200, 300) in the training method.

In one embodiment of the present invention, a system for treating an occlusion within a patient's vasculature with ultrasonic energy comprises a catheter configured to be passed through the patient's vasculature such that a portion of the catheter is positioned at an intravascular treatment site. The system further comprises an ultrasound radiating member, an ultrasound signal generator configured to supply a drive signal to the ultrasound radiating member, an infusion pump configured to pump a therapeutic compound into the fluid delivery lumen so as to cause the therapeutic compound to be delivered to the treatment site and a controller configured to control the ultrasound signal generator and the infusion pump.

The present disclosure relates to systems and methods for intravascular treatment of intravascular clots in a human patient. A method according to an embodiment of the present technology may include, for example, positioning a distal portion of a catheter near an intravascular clot. The method may further include coupling a pressure source to the catheter via a conduit subsystem that includes a valve or other fluid control device, and activating the pressure source to charge a vacuum while the valve is closed. The valve may then be opened to apply the vacuum to the catheter, thereby sucking at least a portion of the clot into the catheter from the blood vessel.

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.

Systems and methods for removal of clot material from vessel lumens are disclosed. A thrombectomy system can include a tubular member having a proximal end region configured to be disposed extracorporeally and a distal end region configured to be disposed at an intravascular treatment site at or adjacent to a thrombus. The tubular member has a sidewall defining a lumen extending therethrough from the proximal end region to the distal end region. The sidewall has an opening in the distal end region, the opening including a proximal portion spanning a first width and a distal portion spanning a second width greater than the first width. The thrombectomy system can additionally include a suction source configured to be fluidically coupled to the lumen.

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

Systems and methods for the intravascular treatment of clot material within a blood vessel of a human patient are disclosed herein. A method in accordance with embodiments of the present technology can include, for example, engaging an interventional device of a catheter system with clot material in a blood vessel and withdrawing the interventional device and the portion of the clot material through a guide catheter. In some embodiments, the catheter system can include an attachment / valve member coupled to a proximal portion of the guide catheter, and the method can include unsealing the attachment / valve member to facilitate withdrawing the interventional device through the attachment / valve member without significant retention of clot material within the attachment / valve member. The method can further include resealing and aspirating the guide catheter before advancing another interventional device to the clot material to again engage and remove clot material from the blood vessel.

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.

Reperfusion injury is limited during endovascular therapies (e.g., revascularization and / or reperfusion of end organ tissues) by conditioning the tissues against reperfusion injury using an optical fiber catheter to deliver far red and near infrared (R / NIR) light to the tissues. The light may be multiple wavelength or single wavelength light, and may have one or more wavelengths selected from the range of 510 to 830 nm. The R / NIR light may be delivered concurrently with the endovascular therapy, or in other instances may be delivered before or after a particular therapy.

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.