Abstract: A device may be used for capturing and retrieving vascular debris. The device may include: at least two segments radially expandable from a collapsed state to an expanded state, each of the at least two segments having (a) a waist including a radially largest region of the segment and (b) two longitudinal ends; at least one intermediate portion, each of the at least one intermediate portion including a pivot that connects adjacent segments, each pivot having a diameter less than a diameter of the waist; wherein each of the at least two segments includes at least two struts that extend longitudinally from a proximal end to a distal end of the segment, the at least two struts tapering from the waist radially inward toward a longitudinal axis of the device as the at least two struts approach an adjacent intermediate portion.

Abstract: A clot retrieval device that includes a proximal scaffolding section with a closed proximal end and an open distal end; an inner elongate member; and a distal scaffolding section with a closed proximal end and an open distal end element.

Abstract: A guidewire holding device comprises a sheath including a lumen, a holder disposed at a distal end of the sheath and configured to be switchable between holding a guidewire and releasing the guidewire, a treatment tool inserted in the lumen to perform an intended treatment, and a wire connected to the treatment tool and configured to move the treatment tool between a first configuration and a second configuration. In the first configuration, the treatment tool is contained insider the lumen, and, in the second configuration, the treatment tool is protruded from the distal end of the sheath.

Abstract: Described herein are systems, devices, and methods for removing material from patient vasculature. In some embodiments, an aspiration device may include a sheath and a catheter slidably disposed within the sheath and defining a lumen. The catheter may include a distal end portion and an elongate portion, the distal end portion being disposable adjacent to a clot, the elongate portion being couplable to a vacuum source that is configured to apply a negative pressure to the lumen to draw the clot into the distal end portion. The distal end portion may include a plurality of sections, each of the plurality of sections having a different cut pattern.

Abstract: A cryosurgery system for application of medical-grade liquid nitrogen to a treatment area via a small, low pressure, open tipped catheter. The system includes a console, including a touch panel computer, a cryogen module, a suction module and an electronics module, and a disposable spray kit. Features include optional low cryogen flow setting to reduce the cryogen flow rate by 50%, improved cryogen flow consistency reducing pressure pulses and peaks, an integrated suction pump for improved consistency and self-checks, specified vent tube areas and corresponding maximum expected pressures during cryospray procedure; optional pressure sensing capability to monitor pressure during a treatment, and novel catheter designs of multilayer and flexible construction providing a variety of spray patterns.

Abstract: A catheter system that is actuatable to a deployed state and includes a catheter body and a dilator positioned at least partially within the lumen of the catheter. A distal end of the dilator can be releasably connected to a distal tip of the catheter body. The dilator can be retractable to expand and invert the distal tip and form a funnel shape in the deployed state.

Abstract: A system for retrieving material or objects from a biological vessel is provided. the system includes an elongated braid structure configured for transitioning between collapsed and expanded states, the elongated braid structure surrounding a lumen having a distal opening when in the expanded state. The system further includes a closure wire positioned along a length of the elongated braid structure, the closure wire being actuatable to pull inward a distal portion of the elongated braid structure and thereby at least partially close the distal opening.

Abstract: A retrieval device may have a contracted state and an expanded state. The retrieval device may include a sheath and at least three support members. Each of the support members may have a first portion with a first cross-sectional shape and a second portion with a second cross-sectional shape different from the first cross-sectional shape. A proximal end fixed of each of the support members may be coupled to the sheath, and a distal end may be movable relative to the sheath. The retrieval device may further include at least three movable members movable relative to the support members. Each movable member may extend through a lumen of one support member of the at least three support members and through a lumen of a different support member of the at least three support members.

Abstract: 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.

Abstract: A catheter system for imparting pressure to induce fractures at a treatment site within or adjacent a blood vessel wall includes a catheter, a fortified balloon inflation fluid and a first light guide. The catheter includes an elongate shaft and a balloon that is coupled to the elongate shaft. The balloon has a balloon wall and can expand to a first expanded configuration to anchor the catheter in position relative. The fortified balloon inflation fluid can expand the balloon to the first expanded configuration. The fortified balloon inflation fluid includes a base inflation fluid and a fortification component. The fortification component reduces a threshold for inducing plasma formation in the fortified balloon inflation fluid compared to the base inflation fluid. The fortification component can include at least one of carbon and iron. The first light guide is disposed along the elongate shaft and is positioned at least partially within the balloon.

Abstract: A retrieval device attachable to a scope includes a handle which has an attachment portion configured to couple the handle to the scope; a shaft coupled to the handle having a wire immovably coupled to the handle; and a sheath movable relative to the handle over the wire between a distal position and a proximal position via an actuator of the handle. The actuator actuates a slider assembly of the handle. The slider assembly is coupled to the sheath and movable relative to the attachment portion to move the sheath and an expandable end effector coupled to the distal end of the wire. The end effector is movable between a collapsed configuration when the sheath is moved distally to the distal position to cover the end effector and an expanded configuration when the sheath is moved proximally to the proximal position, uncovering the end effector.

Abstract: The present disclosure provides phospholipid-containing compounds, pharmaceutical compositions and microspheres that exhibit high affinity for mineralized metals. The present disclosure also provides strategies for using said compounds, compositions and microspheres in the treatment of nephrolithiasis or kidney stone disease, and methods of manufacturing and preparing said compounds and compositions.

Abstract: Funnel-trap type delivery and/or retrieval devices for Inferior Vena Cava (IVC) filters or other medical implants are described in which the devices comprise two layers of braid with an axially support member. The support member may be interposed between braid layers or set inside the braid layers but interposed between heatset features. Delivery and/or retrieval devices, kits in which they are included, methods of use and methods of manufacture are all contemplated herein.

Abstract: 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.

Abstract: A reperfusion device for an occluded vessel. The device includes a framework of struts that form a porous body comprising a collapsed delivery configuration capable of being stored in a microcatheter and an expanded deployed configuration when delivered to an occlusion and distal of the microcatheter. The framework of struts is constructed from a material visible under fluoroscopy and capable of recovering its shape in the expanded deployed configuration once released from the collapsed delivery configuration in the microcatheter.

Abstract: A system including an outer member, an elongated column member extending distally from the outer member and an inner member positioned coaxial with the outer member and attached to the column member. The inner member extends distally of the outer member and has a distal portion. The catheter is positioned within an outer catheter, such as an aspiration catheter, which provides a reinforcement member over the column member to restrict movement of the column member such that when one of the inner member or outer member is moved with respect to the other, axial compression of the column member is restricted by the inner wall of the outer catheter causing the distal portion of the inner member to deflect laterally to thereby redirect the outer catheter.

Abstract: A specimen retrieval system for easier tissue removal during endoscopic surgery. The device includes a specimen tube with a main tube, and a mechanism for pulling and everting the distal end of the tube into the tube, or a side channel provided within the tube. The mechanism may include a tether fixed to the distal edge of the tube, or a grasper operable to grasp the distal edge of the tube.

Abstract: Methods and systems for spinal radio frequency neurotomy. Systems include needles capable of applying RF energy to target volumes within a patient. Such target volumes may contain target medial branch nerves along vertebrae or rami proximate the sacrum. Such procedures may be used to ablate or cauterize a portion of the targeted nerve, thus blocking the ability of the nerve to transmit signals to the central nervous system. Disclosed needles may be operable to asymmetrically, relative to a central longitudinal axis of the needle, apply RF energy. Such asymmetry facilitates procedures where a tip of the needle is placed proximate to anatomical structures for location verification. Then RF energy may be applied in a selectable direction relative to the needle tip to ablate volumes that include the targeted medial branch nerves or rami, thus denervating facet joints or the sacroiliac joint, respectively, to relieve pain in a patient.

Abstract: A catheter for use in a subject's vasculature includes a rotating and axially movable instrument. The instrument includes a rounded element at its distal end connected to a body having a spiral shape. The instrument is at least partially disposed in a lumen of the catheter and is configured for axial and rotational motion within the lumen between a proximal-most position and a distal-most position, where the body includes at least one edge configured to promote removal of a target substance from the body passageway upon contact with the target substance.

Abstract: A prosthetic implant delivery assembly includes a prosthetic implant including an expandable stent and a catheter for delivering the prosthetic implant. The expandable stent includes apices circumferentially-spaced apart relative to each other. At least some of the apices include an aperture disposed therein. The catheter includes arms disposed at an end of a shaft, and the arms are moveable between a radially compressed state and a radially expanded state via a sheath. The arms each include a hook portion for releasably engaging the apertures of the apices. The arms are configured to move from the radially compressed state to the radially expanded state when the plurality arms is exposed from within the sheath such that the hook portion disengages from the apices of the prosthetic implant and releases the expandable stent from the catheter.

Abstract: A medical device includes a handle with a proximal arm and a distal arm. The proximal arm and the distal arm are pivotable via a joint. The medical device also includes a tube coupled to the distal arm and a drive wire. A distal portion of the drive wire includes an expandable end effector. A portion of the drive wire is positioned within the tube, and a different portion of the drive wire extends proximally of the distal arm and is coupled to the proximal arm.

Abstract: A method of extracting a thrombus from a thrombus site in a cerebral artery of a patient by advancing a first catheter into an internal carotid artery of the patient; advancing a funnel catheter within the first catheter; moving the funnel catheter and the first catheter with respect to each other to place the funnel outside of the first catheter; expanding the funnel into contact with an inner wall of the internal carotid artery at or proximal to a distal end of a carotid siphon, thereby reducing blood flow past the funnel; advancing a clot-mobilizer distally through the first catheter toward the thrombus and beyond the carotid siphon; engaging thrombus material from the thrombus with the clot-mobilizer; moving the clot-mobilizer and thrombus material proximally at least partially into the funnel; applying suction to aspirate thrombus material; and moving the funnel, the clot-mobilizer and the thrombus material proximally within the vasculature.

Abstract: The present disclosure is directed to medical devices and methods of manufacturing medical devices, such as an ophthalmologic medical device.

Abstract: An obstruction removal device is configured to be inserted through a catheter and at least partially extended into a vasculature from a distal end of the catheter. The obstruction removal device includes: a base member configured to engage one or more guide stops at the distal end of the catheter; a tubular member coupled to the base member and configured to apply a suction force from the catheter to an obstruction to remove the obstruction from the vasculature; and an expandable member surrounding the tubular member. The expandable member is configured to transition from a contracted state to an expanded state after the expandable member is at least partially extended into the vasculature from the distal end of the catheter. The expandable member is further configured to at least partially surround the obstruction as the obstruction is being removed from the vasculature.

Abstract: The present invention pertains to a thrombectomy device comprising a cylindrical proximal portion and one or more radiopaque segments. The cylindrical proximal portion forms a stent frame having an outer lattice network of an outer plurality of interconnecting segments. The outer plurality of interconnecting segments are configured to exert a radial force against an inner wall of a blood vessel. The radiopaque segment is formed from a plurality of radiopaque wires extending from the outer stent frame to a central axis of the thrombectomy device along a length of the stent frame. The radiopaque segment converges to a tip along with the central axis.

Abstract: A tissue specimen retrieval bag assembly includes a tissue specimen bag having an open proximal end and a closed distal end, the proximal end including a cuff defined therein and extending therearound. A flexible bag brim is disposed within the cuff and is transitionable between a first, collapsed configuration and a second, expanded configuration. The flexible bag brim includes a cross section configured to facilitate both furling the tissue specimen bag onto itself around the bag brim when the bag brim is disposed in the second, expanded configuration and securing the tissue specimen bag in a desired furled configuration. The flexible bag brim includes a plurality of scallops defined along an inner peripheral surface thereof configured to facilitate furling the tissue specimen bag onto itself.

Abstract: A retrieval device may have a contracted state and an expanded state. The retrieval device may include a sheath and at least three support members. Each of the support members may have a first portion with a first cross-sectional shape and a second portion with a second cross-sectional shape different from the first cross-sectional shape. A proximal end fixed of each of the support members may be coupled to the sheath, and a distal end may be movable relative to the sheath. The retrieval device may further include at least three movable members movable relative to the support members. Each movable member may extend through a lumen of one support member of the at least three support members and through a lumen of a different support member of the at least three support members.

Abstract: A medical retrieval tool including a sheath; and a basket device connected to the sheath. The basket device includes a shaft and a basket located at a distal end of the shaft. The shaft is movably located in the sheath. The basket includes a first basket cage section and a second basket cage section. The first basket cage section is located in front of the second basket cage section. The basket is configured to be extended from a distal end of the sheath in a plurality of deployment modes including a first deployment mode where the first basket cage section is deployed in a first fully expanded shape and the second basket cage section is located in the sheath; and a second deployment mode where both the first basket cage section and the second basket cage section are deployed out of the distal end of the sheath.

Abstract: An endovascular medical system for use with a clot located in a target vessel. The system including a guidewire formed by a core wire. The guidewire extending in a longitudinal direction from a proximal end to an opposite atraumatic clot-circumventing configured distal end; and a lateral direction of the atraumatic clot-circumventing configured distal end of the guidewire being defined transverse to the longitudinal direction of the guidewire. The atraumatic clot-circumventing configured distal end is designed to prevent injury to an inner wall of the target vessel and prohibit insertion of any portion of the guidewire into a perforator vessel.

Abstract: The present disclosure relates generally to the field of medical devices and methods to assist in the introduction of an instrument into a patient, and more particularly to medical devices for measuring and/or monitoring forces applied during introduction of an access sheath through a body lumen.

Abstract: Self-rolling mechanical apparatuses for removing material from a body lumen include a tractor tube portion that rolls and inverts over itself in a continuous motion, tractor-like, to draw material into the tractor tube, wherein the tractor tube rolls over itself without requiring any additional internal support at the distal-facing region of the tractor tube.

Abstract: Novel catheter with longitudinal expandable arid contractile elements which promote wave propagation. The tension-band characteristics of these elements enhance the “crawling” dynamics of the catheter. Tauglit is an aspiration catheter with three key components: an inner spring coil system, a soft pleated jacket with annuli that buckles under load and an outer proleg or leaf-spring that fattens the. diameter of the catheter. Smart features, robotics and AI may be on-boarded. As shown, subject catheters shall piston in a fixed environment (muscular structure such as an artery) and propagate forward akin to earthworm locomotion (Lumbricm terrestris).

Abstract: A method of performing a medical procedure in a cerebral vessel of a patient including advancing a first catheter system towards an embolus within a cerebral blood vessel and a second catheter system towards the embolus through the first catheter, applying aspiration pressure through the lumen of the second catheter; anchoring a distal end of the second catheter onto the embolus via the aspiration pressure; applying a proximally-directed force on the second catheter; and advancing the first catheter over the second catheter towards the embolus while the distal end of the second catheter remains anchored onto the embolus; and automatically applying aspiration pressure within the first catheter upon the second catheter portion entering into the first catheter.

Abstract: Provided is an intra-abdominal tissue retrieval bag. The bag has an inflated state and a deflated state. The bag is introduced into the abdomen in a deflated state through a small incision and placed underneath the specimen to be retrieved. The bag is defined by an inflatable defining circumferential ring at the opening and an inflatable collection sac. Both inflated using external pneumo source sequentially, the same that is used to maintain pneumoperitoneum during laparoscopic surgery. After insufflation, the specimen becomes fully contained and ready for retrieval after desufflation.

Abstract: A surgical device is disclosed for cutting tissue, including for performing a capsulotomy of a lens capsule of an eye. This device includes a reversibly collapsible cutting element for cutting a portion of a capsule membrane of the eye. The cutting element includes an outer layer, an inner layer, and a bottom layer that has a higher electrical resistance than the electrical resistance of the outer layer and the inner layer. The bottom layer is configured to conduct an electrical current between the outer layer and the inner layer, which causes a temperature increase in the bottom layer for cutting tissue.

Abstract: The invention generally relates to systems and methods for therapeutically modulating nerves in or associated with a nasal region of a patient for the treatment of a rhinosinusitis condition.

Abstract: A medical device may include an insertion device having a proximal end, a distal end, and a lumen extending therethrough. The medical device may further include a snare device configured to transition between a contracted state within the lumen of the insertion device, and an expanded state extending distally of the insertion device. The snare device may include a loop including a pair of legs and a distal tip. The distal tip may include a plurality of stabilizers between the pair of legs.

Abstract: A medical system may include an insertion device having a handle, a shaft coupled to the handle of the insertion device, and a port positioned on the handle of the insertion device. The port may be in fluid communication with a working channel of the shaft. The port may be a female luer port. The medical system may further include a medical device having a control member terminating in an end effector, a handle having a plurality of circumferential slots along the length of the handle, and a plunger moveable along a longitudinal axis of the handle of the medical device between a first position and a second position. In the first position, the end effector may be positioned within the shaft, and in the second position, the end effector may be positioned distally of the shaft.

Abstract: A tissue specimen retrieval bag assembly includes a tissue specimen bag having an open proximal end and a closed distal end, the proximal end including a cuff defined therein and extending therearound. A flexible bag brim is disposed within the cuff, the flexible bag brim transitionable between a first, collapsed configuration and a second, expanded configuration. The flexible bag brim includes a D-Shaped cross section configured to facilitate both furling the tissue specimen bag onto itself around the bag brim when the bag brim is disposed in the second, expanded configuration and securing the tissue specimen bag in a desired furled configuration. The flexible bag brim defines a cavity therein configured to facilitate compression thereof and to facilitate handling of the bag brim by a surgical instrument.

Abstract: An endoscope treatment tool includes: a sheath; an operating wire in the sheath; a gripping portion provided at a distal end of the operating wire and having one or more wires; a tip attached to a distal end of the sheath; and a resin member disposed at a position adjacent to the tip on a radially inner or outer side thereof, wherein the tip includes clearance grooves extending toward a proximal end of the tip from a distal end of the tip, passing therethrough from an inner circumferential surface of the tip to an outer circumferential surface of the tip, and having sizes enabling the wires to pass therethrough, and at least proximal-end sides of the grooves overlap with the member in a radial direction of the tip and a distal end of the member is disposed farther on a distal-end side than proximal ends of the grooves are.

Abstract: A basket actuator includes a base including a base body and a base guide installed in the base body, a slider including a slider body configured to slide along the base guide, and a first slider arm and a second slider arm formed to protrude from the slider body and facing each other, a roller including a roller body rotatably disposed between the first slider arm and the second slider arm and a plurality of roller blades formed to protrude outwardly from the roller body, a wire guide connected to a front end portion of the base body, a wire disposed inside the wire guide and having a first end fixed to the roller, and a basket connected to a second end of the wire. The second slider arm is located rearward in comparison to the first slider arm.

Abstract: A method and apparatus for performing facial registration includes selecting a plurality of target locations for registration. It is indicated that registration is taking place at each of the plurality of target locations, and it is indicated that registration is complete at the each of the plurality of target locations as each target location is registered. Once the registration of all target locations is complete, it is indicated to the system.

Abstract: A foreign substance removing device includes a tubular member and a retriever configured to be expandable to and contractible from a predetermined shape. The retriever includes main wires disposed to be centered around a tube axis of the tubular member, and sub wires each connecting adjacent ones of the main wires to each other. Each of the main wires is configured to curve when the retriever is expanded such that a space having a predetermined size is provided by the main wires. Each of the sub wires is configured to be foldable at at least one point between the adjacent ones of the main wires. When the retriever is expanded, the folding points of the sub wires are positioned inside the space such that the sub wires do not protrude out of the main wires.

Abstract: A capturing unit provided on a distal end of a second tube can be deformed into a contracted state and an expanded state, in which the capturing unit is deployed to form a capturing chamber. The capturing chamber has an opening area decreased as it goes from a distal end opening of the capturing chamber toward a proximal end opening of the capturing chamber. A third tube rotatable relative to the second tube and a cutting unit provided on a distal end of the third tube for cutting a foreign substance are arranged in a second lumen. In the expanded state of the capturing unit, the cutting unit is arranged more toward the proximal end opening of the capturing chamber than the distal end opening.

Abstract: Methods, apparatus, systems and articles of manufacture (e.g., physical storage media) to detect media watermarks in magnetic field data are disclosed herein. Example media monitors disclosed herein include a magnetic field estimator to determine first magnetic field data, the magnetic field estimator in communication with a magnetometer. Disclosed example media monitors also include a correlator to correlate the first magnitude field data with a reference sequence to determine second magnetic field data. Disclosed example media monitors further include a watermark decoder to process the second magnetic field data to detect an audio watermark encoded in an audio signal.

Abstract: A device may be used for capturing and retrieving vascular debris. The device may include: at least two segments radially expandable from a collapsed state to an expanded state, each of the at least two segments having (a) a waist including a radially largest region of the segment and (b) two longitudinal ends; at least one intermediate portion, each of the at least one intermediate portion including a pivot that connects adjacent segments, each pivot having a diameter less than a diameter of the waist; wherein each of the at least two segments includes at least two struts that extend longitudinally from a proximal end to a distal end of the segment, the at least two struts tapering from the waist radially inward toward a longitudinal axis of the device as the at least two struts approach an adjacent intermediate portion.

Abstract: A thrombectomy device includes a handle at a proximal end portion of the device, a first tube connected to the handle, and a second tube extending to a distal end portion of the device. The thrombectomy device also includes a cage at the distal end portion of the device, the cage being adjustable between a contracted orientation and an expanded orientation and including a scraping element formed with one or more of a round wire, a flat wire, or a blade disposed between a proximal end portion of the cage and a distal end portion of the cage, and a suction device, including a source of suction connected to the proximal end portion of the device, the suction device being configured to apply suction towards an interior of the second tube and to an extraction passage formed between the first tube and the second tube in a radial direction.

Abstract: A microelectronic controlled magnetic cleaning system, comprising a micron-scale fine line inner-end part, a micro-scale fine line outer motor control part, and a micro-scale fine line outer system electronic control part. The micron-scale fine line inner-end part is manufactured as a plurality of micron-scale magnetic fine lines, wherein the central magnetic fine lines are slightly wider than the periphery magnetic fine lines. The inner-end part of the central magnetic fine lines is spiral shaped. The micro-scale fine line outer motor control part is made by adding a high-precision micro-motor at the middle portion outside the central magnetic fine lines, When a larger obstruction is found by an endoscope or other optical device imaging system, the central magnetic fine lines can be controlled to arrive at a designated position, and motor speed can be controlled to clean the obstruction. Also disclosed is a micro-electronic controlled magnetic cleaning method.

Abstract: A method for capturing an object in a cavity in a patient is described. The method includes advancing a ureteroscope into the cavity containing the object. A basket is advanced through a working channel of the ureteroscope. The basket is opened within the cavity and is positioned so as to enclose the object. Then, two actions are performed simultaneously. The basket is collapsed while simultaneously the basket tool is advanced forward so that the object remains within the basket, ideally near the center of the basket, as the basket closes around the object. Once the object is captured, the basket is retracted to remove the object out of the cavity. Further, this process may be automated by having the method carried out by robotic arms acting in tandem, with one or more robotic arms advancing the basket tool or ureteroscope, and another robotic arm collapsing the basket.

Abstract: An endoscopic instrument provides a flexible three-arm snare structure that is adapted to retrieve stones from a human body.