Abstract: A method of a control system (2200) controls an inductance motor in a blower including an impeller and volute using a pressure compensation control system. The control system may be implemented in a respiratory pressure therapy device. The control system may include a sensor configured to provide a pressure signal indicative of the pressure of a flow of fluid produced by the blower. A measured pressure may be compared to a set pressure to determine a pressure error. A slip frequency may be adjusted as a function of the pressure error in an attempt to eliminate or minimise the pressure error.

Abstract: A multi-night titration (MNT) process to find an optimal single therapeutic pressure of a CPAP device. This single therapeutic pressure can then be used on an on-going basis by the patient after the titration period. The MNT process differs from current auto adjusting processes used for titration (or ongoing use) in that the MNT process does not respond locally by adjusting pressures to individual events. With existing devices, the continuous adjustment of supplied air pressure always responds to one or a small number of events and thus fails to compensate for a patient's adaptation thereto, resulting in the supply of a less than optimal therapeutic pressure to the patient. While auto adjusting processes often capture and respond well to short-term and transient conditions, the MNT process of the current disclosure seeks to capture long term trends and find the most suitable average single pressure for a patient.

Abstract: An airway device for human or animal use includes an airway tube having a first end and a second end, the first end of which is surrounded by a laryngeal cuff configured to fit over the laryngeal inlet of a patient when in situ. The first end of the airway tube is provided with an intubating ramp configured to direct a tube inserted through the airway tube into the laryngeal inlet of the patient when in situ.

Abstract: Apparatus for enabling speech while a tracheostomy tube is in place includes a tracheostomy tube 1 with a vocalisation gas lumen 15 extending along its length and opening at one end externally of the tube above the sealing cuff 10 in the trachea T. A ventilator 2 is connected to the main bore 3 of the tube 1 to supply ventilation gas cyclically to the patient. The ventilator 2 also has an auxiliary outlet 29 connected to the vocalisation gas lumen 15. The auxiliary outlet 29 supplies vocalisation gas to the vocalisation gas lumen 15 only during the expiratory phases of ventilation. Alternatively, the apparatus includes a separate supply 50 of vocalisation gas connected with the vocalisation gas lumen 15? via a valve 52. The valve 52 is controlled by pressure in the main gas supply tubing 31? so that the valve is opened to enable the supply of vocalisation gas only during the expiratory phases of ventilation.

Abstract: An infant nasal interface mask for use with a nasal continuous positive airway pressure (nCPAP) system including a mask body and a base. The mask body forms a cavity and is defined by a leading portion, an intermediate shell portion, and a trailing portion. The leading portion terminates in a leading edge forming an aperture open to the cavity and having a generally triangular shape for placement over a patient's nose. The trailing portion includes a bellows segment characterized by an increased flexibility as compared to a flexibility of the intermediate shell portion. The base extends from the trailing portion opposite the leading portion and forms at least one longitudinal passage extending through a thickness of the base and fluidly connected to the cavity. The intermediate shell portion is laterally pivotable relative to the base via the bellows segment.

Abstract: A humidifier is combined with a continuous positive airway pressure device. The continuous positive airway pressure is surrounded by a housing; the humidifier comprises a chamber defined by the continuous positive airway pressure device housing and a wall between the chamber and the continuous positive airway pressure device. The chamber includes a removable air-tight lid, wherein the chamber is filled with a mass transfer medium capable of reversibly absorbing water and wherein air can pass through the mass transfer medium and water is dissolved into the passing air.

Abstract: A connecting valve structure and an anesthetic filling system are provided. When a valve core assembly is in the open state, a pipe and a filling port are in seal fit, besides, the connecting ring, the seal pipe, and the drug guiding pipe are integrated as a whole, when the seal pipe is inserted into or pulled out of the filling port of the evaporator, no BHT exudate occurs. In addition, an inner pipe wall of the seal pipe, a surface of the connecting ring facing towards a first pipe end, and an outer pipe wall of the drug guiding pipe opposite to the seal pipe together form a pressure stabilizing groove which is used to equilibrate pressure in the container and the evaporator during the open state.

Abstract: The invention discloses methods and systems for modulation of the central nervous system and more particularly for modulation of brain oscillatory activity and the brain networks that give rise to it. The methods involve using one or more non-invasive stimuli, either alone or in combination, to increase, decrease, or otherwise modulate neural oscillations, the rhythmic and/or repetitive electrical activity generated spontaneously and in response to stimuli by neural tissue in the central nervous system. Various embodiments concern methods and devices for detecting sub-optimal or pathological neural oscillatory patterns, developing treatment protocols to modify the neural oscillations in a desired manner, introducing a non-invasive stimulus or stimuli through one or more sensory pathways to treat the conditions, and for adjusting the treatment protocol to optimize the therapeutic effect of the stimulus or stimuli.

Abstract: An electronic device is provided. The electronic device includes a capsule container configured to contain at least one capsule, a discharge structure configured to discharge a material included in the capsule, a transceiver configured to transmit data to an external device or to receive data from the external device, and at least one processor. The at least one processor is configured to receive, user state information and biometric information from the external device via the transceiver, select at least one capsule in the capsule container on the basis of the received user state information and biometric information, determine a spray amount of a material contained in the selected at least one capsule, and spray the material via the discharge structure.

Abstract: A catheter assembly includes an inner liner made of flexible material and an outer layer having a steering mechanism. A catheter assembly is provided that includes an inner liner made of flexible material, and an outer layer having a steering mechanism that includes at least one wire and a corresponding lumen for each of the at least one wire through which the respective wire may travel. The outer layer includes a braided wire assembly that includes at least two wires braided into a wire mesh, and further includes a see-through portion positioned proximate a pull wire extraction location to facilitate extraction.

Abstract: An expandable intra-venous catheter for a faster intra-venous fluid challenge combination has a needle with a tip and an opposite base, a block receiving the needle axially, an inflator port in the block and an opposite IV port 5 in the block, the IV port has fluid communication into the needle, at least three inflators deployed along the needle outwardly from the block, the inflator port has gaseous communication into the inflators, a sheath extending from the block over the inflators towards the tip, and an IV tube upon the needle and within the sheath. The catheter has a flat state and an expanded state. The catheter minimizes the need for multiple access points and raises the rate of access success upon a practitioner's initial IV attempt.

Abstract: Described herein are devices, methods and kits for assessing and/or enhancing the accessibility of a subvalvular space of a heart, accessing the subvalvular space of the heart (e.g., to provide access for one or more other devices), and/or positioning one or more devices in the subvalvular space of the heart. The devices described herein may, for example, comprise catheters that may be used to manipulate one or more chordae tendineae, diagnostic catheters having different sizes and/or shapes (e.g., different curvatures), guide catheters having different sizes and/or shapes (e.g., different curvatures), and visualization catheters. In some variations, the devices, methods, and/or kits may be used to visualize a target site, such as a subannular groove of a heart valve. In certain variations, the devices, methods, and/or kits may be used to manipulate chordae tendineae to provide additional space in a ventricle of a heart (e.g., enhancing the accessibility of the ventricle).

Abstract: Described here are devices, methods, and kits for the deployment of tissue anchors. In some variations, the devices may comprise a shaft defining a lumen for housing at least one anchor therein and a mechanism for deploying the anchor distally from the lumen. In certain variations, the devices may comprise one or more stop elements. For example, a device may comprise a stop element that limits the advancement of the device through an opening in a wall portion or at the distal end of another device.

Abstract: An introducer sheath is disclosed capable of reducing a physical burden on a patient by shortening a time necessary for hemostasis at an introduction part after removing the introducer sheath percutaneously introduced into a body lumen. The introducer sheath includes a catheter main body, which is percutaneously introduced into a body lumen, a hub, which is connected to a proximal side of the catheter main body, and a tube member which includes a thrombus inducing material M. The tube member is disposed at a proximal side of an outer surface of the catheter main body.

Abstract: The invention comprises an indwelling medical device which is capable of delivering a therapeutic agent evenly along the length of the indwelling portion, including the outer wall, of the device.

Abstract: An introducer used to provide a route through which a catheter or other medical device is inserted so as to gain access to a subcutaneous vessel of a patient is disclosed. The introducer is configured so as to minimize the amount of force needed to enter and dilate a vessel, thus reducing trauma to the vessel and the patient. In one embodiment, an introducer is disclosed, comprising a sheath and a dilator. The sheath includes a tubular portion that defines a lumen. The dilator includes an elongate body and a tapered distal tip and is configured to be removably disposed within the lumen of the tubular portion of the sheath. The dilator elongate body defines a cylindrical recess proximally extending from the tapered distal tip. The cylindrical recess configured to receive therein the tubular portion of the sheath when the dilator is disposed within the tubular portion of the sheath.

Abstract: The invention relates to an injection catheter for delivering a therapeutic agent into a substrate, comprising one or more lumens and a curved delivery element, said lumen serving as a guide for said curved delivery element outside of the substrate; said curved delivery element comprising openings on its distal tip, said distal tip comprising a distal zone and a proximal zone, said injection catheter being characterized in that the specific surface in said distal zone of said distal tip of said curved delivery element is higher than the specific surface in said proximal zone of said distal tip of said curved delivery element. The invention also relates to a process for delivering a therapeutic agent into a substrate.

Abstract: Described here are devices, systems, and methods for forming a fistula between two blood vessels. Generally, the systems may comprise a first catheter and a second catheter, which may comprise one or more fistula-forming elements. The first and second catheters may comprise one or more magnets, which may be used to assist in bringing the first and catheters in closer proximity to facilitate fistula formation. In some variations, the magnet may have a plurality of magnetic domains each characterized by a magnetic flux vector, with the magnetic flux vectors of the magnet passing through a common magnetic origin.

Abstract: A tracheoscope pull wire control mechanism includes a rotating wheel pivotally arranged inside a handle; a holding cavity is formed on an upper portion of the rotating wheel; a spring and a brake block are arranged in the groove, such that a connection rod of the control piece above the handle passes through a long slotted hole at a position opposite to the handle, and is clamped and linked with the brake block; and the near ends of the two pull wires are extended and are combined on the rotating wheel of the control mechanism. The positioning structure can be operated with a single hand, which is different from the conventional two-hand control manner; and the operation efficiency and the convenience are improved.

Abstract: A catheter assembly includes a flexible catheter (22), a needle (12) having a sharp distal tip, the needle (12) disposed in the flexible catheter (22) and moving from a first position that exposes the needle (12) to a second position, an outer member (26) that is configured to engage and disengage a catheter hub (14), an inner member (28) disposed in the outer member (26), and a needle protection (30) member disposed in the inner member (28), the needle protection member (30) enclosing at least a portion of the needle (12) when the needle (12) is in the second position.

Abstract: A trackable guidewire apparatus and method for use are described. Longitudinally spaced proximal and distal guidewire ends are separated by a guidewire body. A plurality of longitudinally spaced position sensors are configured to provide signals corresponding to a three-dimensional position of at least one position sensor in a coordinate system of an associated tracking system in response to an electromagnetic field/stimulus. At least one retention mechanism is provided for maintaining the medical device in a predetermined retention position longitudinally along the guidewire body. At least one stop structure is provided in a predetermined stop position longitudinally along the guidewire body.

Abstract: A coil is made by helically winding a wire rod. A cross-sectional shape of the wire rod of the coil includes a curved portion that is arcuately curved toward a center axis of the coil; a flat portion that is provided on an outer circumference of the coil, and is formed in a flat shape with a curvature that is smaller than a curvature of the curved portion; and at least one protruding portion that is provided at the boundary between the curved portion and the flat portion or in the vicinity of the boundary, and protrudes toward an adjacent wire rod.

Abstract: The invention relates to a cannula, having an elongated tube, open on both ends, for receiving an elongated element and a movable safety clip enclosing the tube which encloses the tube end when advancing along the tube beyond one of the two ends. The safety clip and the elongated element are designed to attract or repel each other by magnetic force.

Abstract: An apparatus for performing a medical procedure and, in particular, an aortic valvuloplasty, in a vessel for transmitting a flow of fluid. The apparatus includes an inflatable perfusion balloon including an internal passage for permitting the fluid flow in the vessel while the perfusion balloon is in an inflated condition, the balloon including a plurality of cells in a single cross section and a covering for at least partially covering the cells. A valve associated with the balloon controls the fluid flow within the passage, the valve being arranged external to the passage. The valve may form a tubular extension of the covering, or may be separate from the covering, and may comprise flaps. A spiral covering may also form the valve.

Abstract: An angioplasty apparatus and method, with a self-expanding stent, for facilitating accurate placement of the self-expanding stent for dilating a patient's blood lumen stenosis, the apparatus includes arcuate, low pressure, balloon segment(s) connected at a distal end of a deployment catheter assembly with axial gap(s) to facilitate continuous blood flow during a stenting procedure.

Abstract: A shunt device for shunting cerebrospinal fluid (CSF) from a CSF containing space to a sinus system cavity comprises a tubular inlet element, a flow restricting part, and a tubular outlet element having an outlet end with an outlet opening for insertion in the sinus system cavity, and a one-way valve preventing flow in a direction from the outlet opening to the inlet opening. The shunt device further comprises a distancer, said distancer being provided at the outlet end of the tubular outlet element.

Abstract: A shunt device for shunting cerebrospinal fluid (CSF) from a CSF containing space to a sinus system cavity comprises a tubular inlet element, a flow restricting part, and a tubular outlet element having an outlet end with an outlet opening for insertion in the sinus system cavity, and a one-way valve preventing flow in a direction from the outlet opening to the inlet opening. The shunt device further comprises a distancer, said distancer being provided at the outlet end of the tubular outlet element.

Abstract: A dilation catheter system includes a body and a shaft assembly. The shaft assembly extends passed a distal end of the body. The shaft assembly includes a fixed guide member, a catheter shaft, a dilator, a removable guide member, and a guidewire. The fixed guide member is fixed relative to the body. The dilator is fixed to the catheter shaft. The catheter shaft is operable to expand the dilator. The removable guide member is operable to selectively attach to the body. The catheter shaft is slidably disposed along the removable guide member such that the catheter shaft is configured to translate along the removable guide member. The guidewire is slidably disposed within the removable guide member.

Abstract: This invention relates to an ingestible drug delivery device configured for wireless communication with other ingestible drug delivery devices.

Abstract: A method of using a power-injectable port includes obtaining the power-injectable access port, attaching a catheter to an outlet stem of the power-injectable access port, and implanting the power-injectable access port and the catheter into a patient. The method further includes identifying the power-injectable access port following the implanting, inserting a distal end of a needle through the septum and into the reservoir, and injecting contrast media through the needle at a rate of at least one milliliter per second. The power-injectable access port includes a housing, a septum, a reservoir, and an outlet stem in fluid communication with the reservoir. The power-injectable access port is rated for injection of contrast media at a flow rate of at least 1 milliliter per second. The power-injectable access port is structured for operation at a pressure in the reservoir of at least 35 psi.

Abstract: A luminal access device is provided that includes a luminal graft attached to a patient lumen. A percutaneous access device (PAD) is coupled to the luminal graft and adapted to stabilize a conduit in fluid communication with the luminal graft and an external medical device. A portion of said PAD adapted to be external to the patient and seal around said conduit. Infectious agent penetration at an insertion site of the PAD is reduced by providing a porous inner sleeve fluidly connected to a conduit. A vacuum or hydrodynamic source is fluidly connected to the conduit to create a fluid draw from the subject tissue through the inner sleeve to the conduit. The conduit is readily formed to have a bore and an outer conduit surface, the outer conduit surface being optionally nanotextured. The conduit bore is adapted to accommodate a medical appliance.

Abstract: A novel seal is provided along with a valve for implementing the seal in the form of a hemostatic catheterization valve. A pressure-sensing form of the hemostatic valve is also provided. The novel seal includes a pair of cooperating conical gaskets divided through their apexes into a plurality of edge-abutting semi-conical flaps. The seals are angularly fixed in orientation relative to each other using registering structures such as complementary tabs and sockets. More specifically, the seams where the semi-conical flaps abut are angularly off-set between the two conical gaskets by a predetermined amount.

Abstract: A breakaway connector generally includes a first valve having a first rotating-type fluid control member, and a second valve that is attachable to the first valve and has a second rotating-type fluid control member. Each of the fluid control members has an open position in which fluid is permitted to flow through the respective valve, and a closed position in which fluid is prevented from flowing through the respective valve. Each one of the valves is configured to engage the fluid control member of the other one of the valves to move the fluid control member from the open position to the closed position upon detachment of the valves from one another.

Abstract: An infusion system includes an infusion catheter defining a fluid passage extending between a proximal catheter end and a distal catheter end, and having a plurality of infusion ports in communication with the fluid passage and defining an infusion zone. A filtration device is provided which may be retrofitted upon the infusion catheter and includes a filter sleeve coupled to a slidable control sleeve. The filter sleeve is deformable between a first configuration having a radially contracted footprint and a second configuration having a radially expanded footprint, responsive to sliding the control sleeve over the infusion catheter such that the deformable filter sleeve buckles outwardly from the infusion catheter.

Abstract: A connecting device for a medical infusion system includes a connection piece which has a connecting profile for the connection of a functional part of the infusion system. The connecting device also has a resiliently flexible, cup-like valve body which is arranged in the connection piece and has a valve casing and cap-shaped top region which is provided with a slit arrangement. Further, the connecting device has a dimensionally stable base portion on which a base ring of the valve casing is supported and which is firmly connected to the connection piece. In the unloaded initial state, the valve casing has a convex internal contour which, starting from the cap-shaped top region, first expands in the direction of the base ring and subsequently narrows again, forming an O-like internal longitudinal section. The connecting device can be in the form of a three-way stopcock for an infusion system.

Abstract: A closure device for a fluid system for medical purposes is disclosed. The closure device includes a support housing, which has at least one opening to a fluid reservoir or a fluid line, and also with a connection piece, which includes a Luer connecting portion for connecting to a syringe or some other Luer connection part, and with an elastically deformable closure membrane, which closes a fluid passage of the connection piece and opens it when the syringe or other Luer connection part is connected. A nonreturn valve is configured for opening both in the direction of the connection piece and in the direction of the opening to the fluid reservoir or to the fluid line is arranged in the support housing at a distance from the closure membrane in the direction of the fluid. The closure device has applications in several areas, including in infusion systems for medical purposes.

Abstract: A method of monitoring electrical stimulation includes electrically stimulating tissue of a patient using at least one electrode of an implanted electrical stimulation lead. A distal portion of the electrical stimulation lead is disposed adjacent to the tissue of the patient to be stimulated. The electrical stimulation lead includes the at least one electrode and at least one light receiver disposed along the distal portion of the electrical stimulation lead. The method also includes receiving light from the tissue at the at least one light receiver of the lead. Other methods include emitting light from the lead to induce the emission of light or electrical signals from the tissue which are then received by the lead.

Abstract: Devices, systems, and methods for specializing, monitoring, and/or evaluating therapeutic nasal neuromodulation are disclosed herein. A targeted neuromodulation system configured in accordance with embodiments of the present technology can include, for example, an evaluation/modulation assembly at a distal portion of a shaft and including a plurality of electrodes. The electrodes are configured to emit stimulating energy at frequencies for identifying and locating target neural structures and detect the resultant bioelectric properties of the tissue. The system can also include a console that maps locations of the target neural structures. The evaluation/modulation assembly can then apply therapeutic neuromodulation energy in a highly tailored neuromodulation pattern based on the mapped locations of the target neural structures. Accordingly, the system provides therapeutic neuromodulation to highly specific target structures while avoiding non-target structures to reduce collateral effects.

Abstract: A peripheral nerve stimulator can be used to stimulate a peripheral nerve to treat essential tremor, Parkinson tremor, and other forms of tremor. The peripheral nerve stimulator can be either a noninvasive surface stimulator or an implanted stimulator. Stimulation can be electrical, mechanical, or chemical. Stimulation can be delivered using either an open loop system or a closed loop system with feedback.

Abstract: The present invention reduces pain and improves function long-term in persons with back pain using electrical stimulation in the back. This approach involves an electrical stimulation device including at least one electrode adapted for insertion within an animal body with back pain and at least one pulse generator operatively coupled with the at least one electrode, wherein the pulse generator delivers electrical stimulation activating at least one muscle in a back of the animal body for pain relief.

Abstract: A sinus treatment device and methods of operating the sinus treatment device that includes a conductive tip and at least one return electrode are disclosed.

Abstract: Disclosed herein is a drive device of an electrode channel for strengthening core muscles of an abdominal region, which can improve circulation of body fluid in a body cavity of the abdominal region and activate muscle membrane tissues inside/outside the abdominal cavity. The drive device includes a wearable instrument worn by a user over an abdominal region, a plurality of electrode channels formed by an electrode pair of a positive-terminal strip and a negative-terminal strip provided on the wearable instrument and contacting a body of the user, and a frequency supply unit for generating and selectively applying Russian current having a middle frequency and interference-wave current between the positive-terminal strip and the negative-terminal strip. Control is performed such that Russian current and interference-wave current are selectively applied to a positive-terminal strip of one of the plurality of electrode channels and a negative-terminal strip of another electrode channel.

Abstract: A visor for visual stimulation of visually impaired subjects is shown. The visor comprises a frame, a coil, a camera and a mounting system. A connector allows the coil to be positioned along a first direction. A sliding device allows the coil to be positioned along a second direction. Positioning of the visor on a subject's nose allows the coil to be positioned along a third direction. Positioning of the coil along the first, second or third direction is useful to maximize coupling RF coupling between the coil and an internal coil implanted on a subject wearing the visor.

Abstract: Methods and systems are provided for managing residual charge for multi-point pacing therapy. The method and system provide an electrode configuration that includes an atrial (A) electrode, a right ventricular (RV) electrode and multiple left ventricular (LV) electrodes. The method and system deliver pacing pulses for an MPP therapy, during a first cardiac cycle, from a pulse generator to the electrode configurations. The pacing pulses are separated by pacing pulse (PP) intervals. The method and system dynamically adjust at least one of a timing or a duration of discharge pulses for the residual charge to form a discharge sequence. The method and system activate the discharge pulses based on the discharge sequence, during the first cardiac cycle, to the multiple LV electrodes to distribute the residual charge across the PP intervals.

Abstract: Systems, apparatus, and methods for ablation therapy are described herein, with a processor for confirming pacing capture or detecting ectopic beats. An apparatus includes a processor for receiving cardiac signal data captured by a set of electrodes, extracting a sliding window of the cardiac signal data, identifying a peak frequency over a subrange of frequencies associated with the extracted sliding window, detecting ectopic activity based at least on a measure of the peak frequency over the subrange of frequencies, in response to detecting ectopic activity, sending an indication of ectopic activity to a signal generator configured to generate pulsed waveforms for cardiac ablation such that the signal generator is deactivated or switched off from generating the pulsed waveforms. An apparatus can further include a processor for confirming pacing capture of the set of pacing pulses based on cardiac signal data.

Abstract: Disclosed in an improved medical implantable device system including an improved external charger that is able to communicate with an external controller and IPG using the communication protocol (e.g., FSK) used to implement communications between the external controller and the implant. The external controller as modified uses its charging coil to charge the implant, and also to communicate with the other devices in the system. As such, the external charger is provided with transceiver circuitry operating in accordance with the protocol, and also includes tuning circuitry to tune the coil as necessary for communications or charging. Communication or charging access to the charging coil in the external charger is time multiplexed. The disclosed system allows charging information to be provided to the user interface of the external controller so that it can be reviewed by the user, who may take corrective action if necessary.

Abstract: A computing device executes a software program that communicates various deep brain stimulation (DBS) routines to a neurostimulator. The software program generates a graphical user interface (GUI) that receives inputs that are indicative of a patient's response to the various DBS routines. The GUI further includes a representation of each of one or more electrode leads that are connected to the neurostimulator. Based on the patient response inputs, one or more symbols that are indicative of an effectiveness of the stimulation routines are displayed at positions on the lead representations that correspond to parameters of the stimulation routines.

Abstract: A surgical instrument and related methods are described. The surgical instrument includes a first jaw including a first structural jaw element and a first sealplate fixed to the first structural jaw element and a second jaw including a second structural jaw element and a second sealplate fixed to the second structural jaw element. The second structural jaw element is moveably coupled to the first structural jaw element to facilitate pinching tissue between the first and second sealplates. The first and second sealplates are configured to facilitate sealing tissue pinched therebetween. The first jaw further includes a metallized tie layer between the first sealplate and the first structural jaw element, wherein the first sealplate is fixed to the first structural jaw element via a metal to metal joint between the first sealplate and the metallized tie layer.

Abstract: An RF switchable filter feedthrough housed inside an AIMD is described. The RF switchable filter feedthrough includes an RF switch having a switching pole that is configured to be controlled by an AIMD control signal to switch between first and second throw position. In the first throw position, a conductive leadwire hermetically sealed to and disposed through an insulator is electrically connected to a two-terminal MLCC chip capacitor which in turn is electrically connected to the ferrule. In the first throw position, EMI energy imparted to a body fluid side implanted lead is diverted to the housing of the AIMD by the chip capacitor. In the second throw position, the conductive leadwire is electrically connected to an RF source disposed inside the AIMD housing. In the second throw position, by measuring a reflective return signal from the RF source it can be determined whether the implanted lead has a defective lead conductor.

Abstract: An implantable leadless cardiac pacing device and associated delivery and retrieval devices. The implantable device includes a docking member extending from the proximal end of the housing of the implantable device configured to engage with the delivery and/or retrieval device to facilitate delivery and/or retrieval of the implantable leadless cardiac pacing device.