Abstract: A method comprises delivering a medical implant and a delivery device to a tissue wall within a heart of a patient. The delivery device can be attached to the medical implant. The method further involves maneuvering the delivery device to place at least a portion of the medical implant at a desired position with respect to the tissue wall and delivering an expandable stagnation device proximate to the medical implant. The expandable stagnation device is configured to at least partially inhibit blood flow. The method further involves injecting a contrast solution between at least a portion of the medical implant and at least a portion of the expandable stagnation device, collapsing the expandable stagnation device, and detaching the delivery device from the medical implant.

Abstract: An endovascular device providing several elements to help mechanically break up and/or lyse a clot inside vessels and/or remove a clot via aspiration, irrigation, maceration and/or rotation, without a filter. According to some embodiments, the devices are adapted to irrigate a blood vessel during thrombectomy; to macerate an obstruction during thrombectomy, to block blood flow in a blood vessel during aspiration of a thrombus.

Abstract: Tissue stabilizing devices and methods for stabilizing, and optionally closing, a target tissue, such as the left atrial appendage, generally include an elongate body with a first lumen and a second lumen, a suction tip coupled to the elongate body, and an injection tip coupled to the elongate body proximal of the suction tip. The suction tip may define a suction aperture and the suction aperture may be in fluid communication with the first lumen to apply suction to the target tissue. The injection tip may be in fluid communication with the second lumen to dispense a contrast fluid.

Abstract: An implantable medical device such as but not limited to a left atrial appendage closure (LAAC) device includes an expandable frame that is movable between a collapsed configuration for delivery and an expanded configuration for deployment. The expandable frame may include a plurality of articulating members that are biased into the expanded configuration. The expandable frame may include a biasing member. The LAAC device includes a membrane or covering that spans across an end of the expandable frame. In some cases, the LAAC device may be adjustable to better fit a non-circular ostium.

Abstract: A method of using an occlusion clamp, the method comprising: (a) repositioning a tongs so that tissue interposes the tongs, the tongs comprising a first longitudinal segment operatively coupled proximally to a second longitudinal segment, the tongs including a first spring exerting a proximal bias tending to direct a proximal portion of each of the first and second longitudinal segments toward one another, where each of the first and second longitudinal segments includes a distal free end; (b) repositioning a second spring distally along each of the first and second longitudinal segments to exert a bias tending to direct a distal portion of each of the first and second longitudinal segments toward one another, where repositioning of the tongs so that tissue interposes the tongs precedes repositioning the second spring distally along each of the first and second longitudinal segments.

Abstract: The invention provides a ligating clip for continuous firing and a process, which can arrange a plurality of ligating clips diastolically and orderly in the same direction and fix them in a continuous firing cartridge; Moreover, the ligating clip in the cartridge can be compressed to the allowable range of the puncture cannula by directionally moving the continuous firing cartridge in the cartridge sleeve, and the continuous firing cartridge can be separated from the cartridge sleeve; Alternatively, after the positioning guide post is arranged on the side cartridge, the positioning guide post is provided with a positioning groove, so the ligating clip is precisely positioned into the T-shaped upper slot between the first upper cartridge and the second upper cartridge, and the T-shaped lower slot between the first lower cartridge and the second lower cartridge, convenient to install the ligating clip while the ligating clip can be effectively positioned.

Abstract: A radial artery smart compression hemostat includes a housing, a pressure sensor, a gear motor and a compression rod. The pressure sensor and the gear motor are disposed in the housing. A fixed end of the pressure sensor is fixedly connected to the housing. The gear motor is fixedly disposed on a measuring end of the pressure sensor. An output end of the gear motor is threadedly connected to an end of the compression rod. A guiding channel is disposed on the housing and has the compression rod slidably disposed therein. A pressing plate is disposed on an end of the compression rod, exposed outside the housing, and has a compression pad detachably sleeved thereon. A bandage is disposed on the housing and used to tie the radial artery smart compression hemostat to a patient's wrist and thereby the compression pad is compressed on a radial artery puncture site.

Abstract: A compression device is used to increase intra-luminal pressure within the upper esophageal sphincter of a patient in order relieve an impact of an abnormal or defective upper esophageal sphincter anatomy, physiology, or functionality. In one implementation, the compression device is used in conjunction with an external pressure sensing device to determine the external pressure that is to be applied to the cricoid for a specific patient. The compression device can be a means for the management and/or treatment of abnormal upper esophageal sphincter functionality, or a means for strengthening an esophageal sphincter of a subject, or a means for curing esophageal reflux disease of a subject, or a means for improving vocal function in a subject, or a means for managing lung aspiration, or a means for applying cricoid pressure during anesthesia intubation, or a means for stabilizing body structures such as during medical imaging or radiation treatment.

Abstract: A resection guide locator includes a bone engagement portion with surfaces that are complementary to the surface topographies of a bone to be resected during surgery. A housing includes a socket defined by a resilient annular wall that is sized and arranged so to accept a resection guide by press-fit to thereby position and hold the resection guide within the socket. The resection guide is maintained in a predetermined, preferred position while the surfaces are releasably locked in position on the bone. A method is disclosed for forming and using the resection guide locator.

Abstract: A resection system for the proximal tibia may include an implantable device having at least a first sensor configured to collect first data regarding one or more characteristics of a bone of a patient, wherein the implantable device is configured for implantation in a medullary canal of the tibia. The resection system may also include a cutting tool, a second sensor configured to collect second data regarding at least an angle of the cutting tool and a controller. The controller can be configured to: determine a first position of the implantable device from the first data, determine an orientation of a mechanical axis of the tibia based at least in part on the first data; and determine an orientation for the cutting tool relative to the tibia based upon the second data and at least one of the orientation of the mechanical axis and the first data.

Abstract: A surgical device for cutting or shaving bone or tissue includes a housing having an elongated tube extending therefrom, the elongated tube configured to support a surgical tool at a distal end thereof. A gear assembly is disposed within the housing and is configured to control oscillation of the surgical tool. A motor is operably coupled to the housing and is configured to drive the gear assembly upon activation thereof. The motor is moveable relative to the housing to adjust one or more gears of the gear assembly which, in turn, adjusts an oscillation angle of the surgical tool to control the aggressiveness of the surgical tool when cutting tissue or bone.

Abstract: A method of drilling holes in bone and harvesting bone fragments for bone grafting utilizes a specially designed drill bit having a point angle of 115° to 120°; a lip relief angle approximately 10° to 14°, two or three flutes defining a helix angle from 13° to 17° at a distal end, and a helix angle of 31° to 35° in the proximal direction. The drill bit is rotated at less than 75 rpms, preferably less than 50 rpms. At such a slow rotation speed, cooling fluid is not necessary and the drill bit does not heat up sufficiently to cause necrosis of adjacent tissues. The helix angulation of the proximal portion of the drill bit facilitates harvesting bone fragments, which can be reused in bone grafting.

Abstract: A system may include an implantable device having at least a first sensor configured to collect first data regarding one or more characteristics of a bone of a patient, wherein the implantable device is configured for implantation in a medullary canal of the tibia. The system may include an attachment member configured to couple with the implantable device when the implantable device is implanted in the medullary canal of the tibia. The system may further include a targeting device moveably coupled to the attachment member, wherein the targeting device is configured to reference a distal anatomy of a leg, and wherein the targeting device has at least a second sensor configured to collect second data regarding at least a position of the targeting device.

Abstract: A system for removing an undesirable material from within a vessel is provided. The system includes a cannula designed for maneuvering within a blood vessel to a site of interest and applying a suction force, such that the undesirable material can be captured and removed along the cannua away from the site. The sytem also may include a catheter having a balloon at its distal end. The balloon may be designed to be postioned adjacent to the undesirable material such that the undesirable material is situated between the ballon and the cannula. The catheter may also be designed to subsequently impart a force onto the undesirable material for removal of the undesirable material. A method for removing an undesirable material from within a vessel is also provided.

Abstract: A guidewire for use in intravascular procedures has a solder or weld joint at a distal end thereof. A plurality of dimples are formed on the solder/weld joint to increase the engagement and penetration of fibrous material including chronic total occlusions (CTO).

Abstract: Some of the present methods include, and some embodiments of the present systems are configured for gaining access to a patient's vessel by way of the vessel (i.e. from the inside out). Some embodiments facilitate gaining access to an occluded vessel, where part of the access path is through the occlusion.

Abstract: Various embodiments of the systems, methods, and devices are provided for controlled operation of an intravascular lithotripsy system for breaking up calcified lesions in an anatomical conduit. More specifically, control arrangements are disclosed concerning managing and/or providing electrical energy to generate an electrical arc between a set of spaced-apart electrodes disposed within a fluid-filled member configured to contain a conductive fluid.

Abstract: Various embodiments of the systems, methods, and devices are provided for controlled operation of an intravascular lithotripsy system for breaking up calcified lesions in an anatomical conduit. More specifically, control arrangements are disclosed concerning managing and/or providing electrical energy to generate an electrical arc between a set of spaced-apart electrodes disposed within fluid-fillable member are disclosed.

Abstract: Various embodiments of the systems, methods, and devices are provided for controlled operation of an intravascular lithotripsy (“IVL”) system for breaking up calcified lesions in an anatomical conduit. More specifically, control arrangements are disclosed concerning managing and/or providing and/or assessing the electrical energy needed to generate an electrical arc between a set of spaced-apart electrodes disposed within a fluid-fillable member.

Abstract: Disclosed is a thrombectomy device with segmented design, and the device includes a thrombectomy net and a push rod fixedly connected with a proximal end of the thrombectomy net, where the thrombectomy net is a tubular hollow self-expanding net capable of automatically expanding radially, which is contracted after being compressed radially, and expands radially after a constraint of radial compression is released. The thrombectomy net includes a slope section, a thrombectomy section, and a gathering section which are sequentially connected from the proximal end to a distal end, where the thrombectomy section includes at least two thrombectomy subsections which are sequentially connected from the proximal end to the distal end and are relatively independent, and two adjacent thrombectomy subsections are locally connected, so that the two adjacent thrombectomy subsections are relatively independent during radial expansion.

Abstract: A vessel harvesting apparatus for removing a blood vessel from a patient includes collection and conditioning (i.e., treatment) of expelled insufflation gas prior to releasing the gas into the air of the operating room. An endoscopic instrument has a distal end with a vessel harvesting tip and has a proximal end with a handle. An insufflation channel is configured to convey an insufflation gas subcutaneously into a dissected space within the patient. A removal channel is configured to evacuate fluidic contents from the dissected space, wherein the fluidic contents include insufflation gas and biological impurities. A processor/separator is coupled to the removal channel to process the fluidic contents to retain at least some of the biological impurities and to exhaust the insufflation gas.

Abstract: A blood clot trimmer device and method for operating such is provided. The blood clot trimmer device is configured to pass through a work channel that is releasably attachable to an existing gastrointestinal examining device or through a working channel of an existing gastrointestinal examining device, and is configured to trim blood clots while the work channel that is releasably attachable to an existing gastrointestinal examining device is configured to remove trimmed blood clots from a site internal to a patient body via suction.

Abstract: A surgical device for cutting or shaving bone or tissue includes an outer housing having a collet secured to an inner peripheral surface thereof including one or more apertures defined therein. A housing includes an elongated tube extending therefrom configured to support a surgical tool at a distal end thereof. A gear assembly is disposed within the housing and is configured to drive the surgical tool, the gear assembly includes a drive gear housing selectively moveable within the housing to switch the gear assembly between an oscillation mode and a rotation mode for driving the surgical tool. A motor is operably coupled to the gear assembly, such that, upon activation thereof, the motor oscillates or rotates the surgical tool depending upon the position of the drive gear housing within the housing.

Abstract: An ultrasonic surgical handpiece may include an assembled handpiece, an ultrasonic tip, a tubing set, and an irrigation sleeve. The assembled handpiece may include an assembled motor, a housing sleeve, and a nosecone. The housing sleeve and the nosecone may be disposed over a portion of the assembled motor. The assembled motor may include an assembled transducer, a transducer sleeve, and an angled adaptor. The transducer sleeve may be disposed over a portion of the assembled transducer. The assembled transducer may include an amplifier, one or more piezoelectric rings, and a connector block. A surgeon may use the ultrasonic surgical handpiece to perform a portion of a surgical procedure.

Abstract: Provided is an ultrasonic surgical knife blade. The projection of the blade on a shear plane is banana-like curved shape. From a proximal end to a distal end, the thickness of the blade varies from thick to thin, and then to thick and to thin again. The projection on a vertical shear plane is fruit knife-shaped. The height of the blade varies from high to low, and then gradually decreases, and an arc-shaped cutting groove is formed in the middle position. The present invention allows for an increase of swing amplitude in the bending direction and the effective working length of the blade. A boat-shaped or arc-shaped balance cutting groove is provided between the most distant node and a tip of the blade, such that the stability of ultrasonic vibration is improved.

Abstract: An energy treatment apparatus includes: a first power source configured to supply power by which a transducer generates an ultrasonic vibration; a second power source configured to supply a high frequency current and a high frequency voltage to a first grasping piece and a second grasping piece; a first detecting circuit configured to detect an electrical characteristic relating to the power supplied to the transducer over time; a second detecting circuit configured to detect the high frequency current and the high frequency voltage supplied to a portion between the first grasping piece and the second grasping piece over time; and a processor configured to control the first power source and the second power source.

Abstract: A surgical device for cutting or shaving bone or tissue includes a housing having an elongated tube extending therefrom, the elongated tube configured to support a surgical tool at a distal end thereof. A gear assembly is disposed within the housing and is configured to control oscillation of the surgical tool. A motor is operably coupled to the housing and is configured to drive the gear assembly upon activation thereof. The motor is moveable relative to the housing to adjust one or more gears of the gear assembly which, in turn, adjusts an oscillation angle of the surgical tool to control the aggressiveness of the surgical tool when cutting tissue or bone.

Abstract: An example medical instrument for creating tracks within target tissue. Medicants could be injected into these tracks for diffusion into the surrounding tissue. An exemplary medical device includes a first tissue penetrating device, a second tissue penetrating device and a handle. The handle includes a first component connected to the first tissue penetrating device and a second component connected to the second tissue penetrating device. When the second component is at a first position relative to the first component, the second tissue penetrating device is in a non-track creation configuration. When the second component is at a second position relative to the first component, the second tissue penetrating device is in a track creation configuration. The second tissue penetrating device is slidably received within the first tissue penetrating device.

Abstract: The present invention comprises at least sensing, monitoring, and display of motor current which is then used in various embodiments of a rotational atherectomy device to determine and/or predict, among other things, treatment progression, treatment completion, optimal rotational speed, optimal advancement or traversal speed during treatment, whether stall appears imminent, and/or reacting to stop motor rotation before a stall occurs. In some embodiments, the determination or prediction results in an automatic, or preprogrammed adjustment by the control unit of the rotational speed of the rotating drive shaft and associated tool.

Abstract: A catheter system includes a catheter that includes an outer shaft and a rotatable inner shaft having a drill tip body. A distal portion of the outer shaft may include a collar that is configured to releasably engage with the drill tip body so that the collar can rotate with the drill tip. The drill tip body and the collar may include locking features that allow the drill tip body to advance within and rotationally couple with the collar. The catheter can be configured to bend laterally when the inner shaft is rotating within the other shaft for maneuvering within a blood vessel, for example, as the drill tip crosses an occlusion. The catheter may include a flushing feature to flush a distal region of the catheter to improve visibility for an imaging element of the catheter.

Abstract: An apparatus adapted for placing a needle at a specific location and depth using an ultrasound probe includes a needle guide with a plurality of needle guide apertures, a support, a stop locator, a syringe, a needle with one or more stops and a probe, such as an ultrasonic probe. The needle guide apertures may be oriented in a first row extending along a length of the needle guide.

Abstract: Medical systems, devices and methods for creation of autologous tissue valves within a mammalian body are disclosed. One example of a device for creating a valve flap from a vessel wall includes an elongate tubular structure having a proximal portion and a distal portion and a longitudinal axis; a first lumen having a first exit port located on the distal portion of the elongate tubular structure; a second lumen having a second exit port located on the distal portion of the elongate tubular structure; a recessed distal surface on the distal portion of the elongate tubular structure, wherein the recessed distal surface is located distally to the first exit port; and an open trough on the recessed distal surface extending longitudinally from the first exit port.

Abstract: A minimally invasive system using a surgical robot as a three-dimensional printer for fabrication of biological tissues inside the body of a subject. A preoperative plan is used to direct and control both the motion of the robot and the robotic bio-ink extrusion. The robotic motion is coordinated with the ink extrusion to form layers having the desired thickness and dimensions, and use of different types of ink enables composite elements to be laid down. Such systems have a small diameter bio-ink ejecting mechanism, generally in the form of a piston driven cannula, enabling access to regions such as joints, with limited space. The robotic control is programmed such that angular motion takes place around a pivot point at the point of insertion into the subject. The bio-inks can be stored in predetermined layers in the cannula to enable sequential dispensing from one cannula.

Abstract: An intraosseous device may include a chamber portion having a proximal end and a distal end, wherein the proximal end includes a base, a tensile puller configured to extend through the chamber portion and slidingly engage the base, the tensile puller comprising a proximal end and a distal end, an actuator on the proximal end of the tensile puller, and a connector on the distal end of the tensile puller adapted to engage a needle.

Abstract: A device includes a plurality of rings. Each ring has a first face, a second face, and at least one slot defined by first and second interior edges of the ring on opposing sides of the slot. The at least one slot penetrates from the first face to the second face. The first face of each ring has a first recess adjacent the slot on the first edge and a second recess adjacent the slot on the second edge. A plurality of posts join each one of the plurality of rings to an adjacent one of the plurality of rings.

Abstract: A reduction device correction system for spinal surgery comprising two uniplanar clamps; a reduction rod having opposite pitch threaded ends, the reduction rod configured to be attached to each of the two uniplanar clamps; a stabilizing rod configured to be attached to each of the two uniplanar clamps; two provisional spine rods, each configured to be attached to a respective uniplanar clamp; and an adjustable force compression device comprising a constant force cable, the constant force cable configured to be attached to each of the two uniplanar clamps.

Abstract: An interspinous process device includes a first plate, a second plate, and a transverse member between the first plate and the second plate, wherein the second plate is adjustably coupled to the transverse member. A post is coupled to the transverse member and a spring mechanism is disposed between the post and the first plate. The spring mechanism is configured to provide a preloaded compression force to the first and second plates. Methods of implanting the interspinous process device using an inserter tool are also disclosed.

Abstract: A bone anchoring device for coupling a rod to a bone includes a bone anchoring element with a head and a shank, a receiving part having an accommodation space for pivotably holding the head of the bone anchoring element, and a recess for receiving the rod, a pressure member for exerting pressure on the head in the receiving part, and a separate locking member movable relative to the receiving part from a first position where the head of the bone anchoring element is insertable into the accommodation space, to a second position where the locking member directly engages and exerts pressure on the head to hold a position of the head relative to the receiving part.

Abstract: In one aspect, a bone plate system is provided that includes a bone plate body having a throughbore and a bone screw. The bone plate system includes a slider slidably connected to the bone plate body to slide between a clearance position wherein the slider permits a bone screw head portion to be advanced into the throughbore and seated against the bone plate body and an interference position wherein the slider inhibits bone screw back out from the throughbore. The bone plate system includes a resilient pin and the slider has a surface configured to deflect the resilient pin as the bone screw head portion shifts the slider from the interference position toward the clearance position. The deflected resilient pin urges the slider from the clearance position toward the interference position upon the bone anchor head portion seating against the bone plate body in the throughbore.

Abstract: A fracture fixation system includes a bone nail configured to be inserted into a canal of a bone, and a bone plate configured to abut a surface of the bone, wherein the bone nail includes first, second, and third nail holes, the second nail hole located between the first and third nail holes, and wherein the bone plate includes first and third plate holes and a slot located between the first and third plate holes. In one embodiment, the slot of the bone plate has a center line extending along an arc of a constant radius from a center point of the first plate hole.

Abstract: In general, scapular tethers and methods of using scapular tethers are provided. A tether is configured to be implanted in a body of a patient and to control movement of the patient's scapula. In an exemplary embodiment, the tether is configured to be attached to at least one body structure in a patient. The tether includes a flexible member configured to, when implanted in the patient, flex in response to movement of the patient's scapula accompanying arm movement of the patient.

Abstract: An anchor including shape memory metals, shape memory polymers or a combination thereof. The anchor has surgical and nonsurgical uses.

Abstract: A positioner, a conveyor, a tunnel-type wire passing system and an operating method thereof. The positioner includes first and second locating rods, a guide wire and a drive unit. The first locating rod defines a first channel extending therethrough along its axial direction. The second locating rod is connected to the first locating rod. The second locating rod defines a second channel extending therethrough along its axial direction. A distal end of the second channel extending in a direction intersecting a direction in which a distal end of the first channel extends. The guide wire is movably inserted in the second channel along the axial direction of the second locating rod. The guide wire is provided at a distal end thereof with a connecting unit. The drive unit is connected to the guide wire and drives the guide wire to move in the axial direction of the second locating rod.

Abstract: Various exemplary surgical impacting tool couplings and methods of using surgical impacting tool couplings are provided. In general, an adapter can be configured to be releasably attached to a surgical impacting tool handpiece. The adapter can be configured to couple to a surgical implement configured to impact bone. The surgical impacting tool handpiece, such as a handpiece of an orthopedic impactor, is configured to drive impacting of the surgical implement relative to bone.

Abstract: An ablation system comprises: an ablation catheter and a console. The ablation catheter comprises: a shaft including a proximal end, a distal portion and a distal end; an ablation element configured to deliver energy to tissue; and a force maintenance assembly comprising a force maintenance element and configured to control and/or assess contact force between the ablation element and cardiac tissue. The console is configured to operably attach to the ablation catheter and comprises: an energy delivery assembly configured to provide energy to the ablation element. Methods of ablating tissue are also provided.

Abstract: A cryogenic needle of a cryogenic system is coupled to a heater. While the needle is inserted into target tissue beneath skin, the heater provides heat to protect the skin. Power supplied to the heater is used to interpolate performance of the needle and/or operating parameters of the cryogenic system.

Abstract: Ablation catheters and systems include flexible catheter tips with a distal needle or ports for delivery of an ablative agent to a target tissue. Pressure monitoring during ablation ensure operation is performed within safe limits and with desired efficacy. Positioning elements help maintain the devices in the proper position with respect to the target tissue and also prevent the passage of ablative agent to normal tissues.

Abstract: Systems and methods for endometrial ablation. The systems include a handle and elongated introducer sleeve extending to an expandable working end having a fluid-tight interior chamber. A thin dielectric wall surrounds at least a portion of the interior chamber and has an external surface for contacting endometrial tissue. The thin dielectric wall surrounds a collapsible-expandable frame and receives an electrically non-conductive gas. First and second polarity electrodes are exposed to the interior and exterior of the chamber, respectively. A radiofrequency power source operatively connects to the electrode arrangement to apply a radiofrequency voltage across the first and second electrodes, wherein the voltage is sufficient to initiate ionization of the neutral gas into a conductive plasma within the interior chamber, and to capacitively couple the current in the plasma across the thin dielectric wall to ablate endometrial tissue engaged by the external surface of the dielectric structure.

Abstract: Various embodiments chemical ablation therapy delivery systems are disclosed herein. One aspect of such a system utilizes an expandable element, at least one guide tube that is fixed, secured, or otherwise anchored to the expandable element, and a needle that is movably disposed within the guide tube. Another aspect of such a system utilizes an expandable element, at least one fluid delivery tube or ablation conduit that is fixed, secured, or otherwise anchored to the expandable element, and at least one injector that extends from an outer perimeter of the corresponding fluid delivery tube, is fluidly interconnected with the corresponding fluid delivery tube, and protrudes beyond an outer perimeter of the expandable element at least when in its deployed state or configuration. Yet another aspect of such a system includes an inflatable tube, where at least one injector is separately attached to the inflatable tube and is fluidly connected with an interior space of the inflatable tube.

Abstract: Apparatus and associated methods relate to controlling electrical power of an electrotherapeutic signal that is provided to a biological tissue engaged by an electrosurgical instrument during a medical procedure. Electrical power—a product of a voltage difference across and an electrical current conducted by the engaged biological tissue—is controlled according to a therapeutic schedule. The electrotherapeutic schedule can be reduced or terminated in response to a termination criterion being met. In some examples, the termination criterion is a current characteristic, such as, for example, a decrease in current conducted by the engaged biological tissue. In some examples, the termination criterion is a biological tissue resistance characteristic, such as, for example, an increase in the biological tissue resistance that exceeds a predetermined delta resistance value.