Abstract: According to some embodiments, an apparatus may deliver a medication that comprises a multi-dose syringe, a multi-dose medication storage unit coupled to the multi-dose syringe, and a trigger mechanism. The multi-dose medication storage is to comprise a plurality of pre-loaded doses of a medication where the medication is in powder form. Moreover, the trigger mechanism is to facilitate delivery of one or more of the plurality of doses of the medication from the multi-dose medication storage unit.

Abstract: The present invention relates to a microjet drug delivery system for microjet spraying a drug solution stored inside to inject the same into the bodily tissue of a person to be operated, and a microjet injector. The microjet injector comprises: a pressure chamber completely filled with the liquid for propelling pressure, having an accommodation space with one side opened; an elastic film, which is a film member made of an elastic material, arranged so as to form a closed space by closing the opened one side of the pressure chamber; a drug chamber for accommodating a drug solution in a predetermined inner space, provided adjacent to the pressure chamber with interposing the elastic film therebetween; and a microjet nozzle communicating with the inner space of the pressure chamber so as to be formed as a channel for allowing the drug solution stored inside the pressure chamber to be microjet sprayed to the outside.

Abstract: Disclosed are a sugar-responsive gel and a medicine administering device having a pKa more suitable for use in a body environment and capable of administering medicine more autonomously than before. A sugar-responsive gel and an insulin administering device having a pKa more suitable for use in a body environment and capable of administering insulin more autonomously than before, wherein under a body condition of pKa of 7.4 or less and temperature of 35° C.-40° C., when the glucose concentration increases, insulin can be released from a gel body in response thereto, and when the glucose concentration decreases, insulin release from the gel body can be suppressed.

Abstract: An infusion pump assembly includes a locking tab and a pump barrel inside a pump barrel housing, the pump barrel accommodates a reservoir assembly. The reservoir assembly includes a reservoir and a plunger rod. The infusion pump assembly also includes a locking disc at a terminus of the pump barrel. The locking disc includes a clearance hole for the plunger rod. The locking disc also includes at least one locking tab notch in close proximity with the locking tab. The locking tab is in moveable engagement with the locking tab notch, and the reservoir moves the locking tab from a locked position to an unlocked position when the plunger rod is inserted through clearance hole. The locking disc rotates upon torque being applied to the reservoir assembly, the locking disc rotating from a non-loaded position to a loaded position with respect to the plunger rod and a drive screw.

Abstract: Systems for delivering a therapeutic agent to a selected site in a subject are disclosed. These systems enable precise placement of selected amounts, e.g., very small amounts, of a therapeutic agent to a predetermined site or sites in a three dimensional array in a subject with minimal trauma to the subject. These delivery systems include a guide cannula for penetrating a selected site in a subject t a predetermined depth and a delivery cannula for delivering the therapeutic agent to the subject. The guide cannula has an axial bore extending therethrough with an open proximal end and an opening at a distal portion thereof. The delivery cannula has an axial bore extending therethrough, a flexible distal end portion, and an outer diameter which is less than the inner diameter of the guide cannula.

Abstract: A deflation device for use in deflating an inflatable or implantable balloon device, comprising, in combination: an endoscope tube, having a distal end, a proximal end, and a lumen; a cap disposed at the distal end of the endoscope tube and having walls defining a balloon interface chamber; a coring device disposed within the lumen and configured to travel within the lumen such that a distal end of the coring device is extendable beyond the distal end of the cap; wherein the cap is configured to provide a normal surface of a balloon relative to the orientation of the coring device as the coring device is disposed near the distal end of the cap.

Abstract: The present invention relates to compositions which are suitable for selective filling or selective coating of folds of a folded balloon, and especially relates to compositions of a contrast agent and an active agent in a solvent for filling of folds of a folded catheter balloon as well as to methods for selective filling or selective coating of folds of a folded catheter balloon and to filled or coated folded catheter balloons which can be obtained according to one of these methods.

Abstract: A retractable safety syringe comprises a needle body, a syringe barrel, and a pusher plunger. The needle body has a needle and a needle seat having an upper needle seat and a lower needle seat; the upper needle seat is used for fixing the needle thereon and is provided with a connecting portion on the bottom; and the removable lower needle seat can be embedded to the upper needle seat from below. The pusher plunger has a piston in the front end thereof; the piston has a connecting member, which can connect to the connecting portion on the bottom of the upper needle seat, so that after injection, by applying a force to press and deform the piston till connecting to the connecting portion, the needle body can depart from the needle socket and the abutment and can be drawn back to the interior of the syringe barrel.

Abstract: A disposable safety self-destroyed syringe comprises a plunger and a syringe tube. An end of the plunger is sleeved with a piston, and an elastic protrusive column is coupled inside the piston with its front end being protruded to a distance from a top surface of the piston; the plunger is inserted into the syringe tube from its front end for injection, and the rear end of the syringe tube is contracted radially to form a needle seat having a blocking portion on the inner wall to be conjoined with a needle, so that when the plunger is depressed to reach closely to the rear end of the syringe tube, a front end of the protrusive column is inserted into the needle seat and is stopped by the blocking portion on the inner wall of the needle seat to retain the protrusive column inside the needle seat.

Abstract: In one aspect, a needle assembly is provided herein which includes a hub; a needle fixed to the hub, the needle having a proximal end and a distal end, the distal end formed for insertion into a patient; and, a body disposed on the hub so as to be moveable relative thereto, the body having a distal end with an aperture formed therein configured to permit passage therethrough of the needle. The body is releasably retainable in a first position on the hub where the distal end of the needle extends distally a first distance from the distal end of the body. Also, the body is retainable in a second position on the hub where the distal end of the needle extends distally a second distance from the distal end of the body, the second distance being less than the first distance. The hub is displaceable proximally relative to the body to urge the body from the first position to the second position.

Abstract: A medical infusion filter including a box body defined by at least two half shells coupled to define an internal cavity divided into at least two chambers by at least one hydrophilic filtering membrane. These chambers include at least one first or entry chamber and at least one second or exit chamber. The at least one first or entry chamber connected to an entry conduit for the medical fluid originating from a corresponding container. The at least one second or exit chamber connected to an exit conduit. At least the first or entry chamber is within a first half shell presenting at least one aperture within which a corresponding hydrophobic membrane is positioned. The at least one aperture enables a differential air flow rate to pass towards the exterior of the box casing as a function of distance of the casing air exit zone from the entry conduit.

Abstract: A pumping segment having a low shut-off force is disclosed. The pumping segment includes a tube having an interior surface with at least two notches on opposite sides of the interior surface.

Abstract: A user-initiated fluid pathway connection includes: a connection hub, a piercing member, a sterile sleeve, and a drug container having a cap, a pierceable seal, a barrel, and a plunger seal, wherein the piercing member is initially retained within the sterile sleeve between the connection hub and the pierceable seal of the drug container. The connection hub may include an internal aperture within the connection hub which functions as a flow restrictor and wherein a piercing member is connected to one end of the internal aperture and a fluid conduit is connected to another end of the internal aperture. A drug delivery pump with integrated sterility maintenance features includes a housing, upon which an activation mechanism, an insertion mechanism, a fluid pathway connection as described above, a power and control system, and a drive mechanism connected to a drug container are mounted. Methods of assembly and operation are also provided.

Abstract: An introduction assembly and method for the insertion of medical instruments through a thoracic passage into a selected one of either the left or right atrium of the heart. Catheters or other instruments dedicated to performing required cardiac maneuvers are passed through an introductory sheath having a distal end disposed within the targeted atrium. Upon completion of the required cardiac maneuvers the instruments are removed from the atrium and a closure assembly is passed through the introductory sheath into a closing relation to an entry site, formed in the pericardium and corresponding atrium wall, to facilitate healing thereof. The introductory assembly and method facilitates the concurrent, operative disposition of a plurality of catheters or other instruments into the interior of the selected atrium through different thoracic passages and entry sites thereby allowing synergistic interaction between the multiple catheters in the performance of the required cardiac maneuvers.

Abstract: When a hub (40) is in an initial position at which it is located on the front end side of an inner cavity of a shield (20), an inner needle (50) penetrates an outer needle (30) and protrudes from a leading end of the outer needle to the outside, and when the hub is in a retracted position at which it is located on the rear end side of the inner cavity of the shield, the inner needle is housed within the inner cavity of the shield. A first side hole (31) is formed in an outer circumferential face of the outer needle, and a second side hole (51) is formed in an outer circumferential face of the inner needle.

Abstract: Some embodiments of a medical device anchor system include an anchor device that receives a catheter (or other medical instrument) and secures the catheter in place relative to a skin penetration point. In some embodiments, the anchor device can secure the catheter in an operative position relative to the skin without the use of sutures or skin tapes. In particular embodiments, the anchor device can be adjusted to a folded condition so that subcutaneous anchors are partially rotated prior to removal from the skin penetration point.

Abstract: Various embodiments are directed to a modular valve apparatus. The modular valve apparatus includes a retaining component having an opening on either end. The modular valve apparatus further includes a cap component having a hole bored through. The cap component may be adapted to be coupled with the retaining component. A generally annular spring component may be disposed within the retaining component and seated on a lower end extending axially toward an upper end of the retaining component. A check ball may be disposed within the retaining component and seated on the spring component. The check ball may be adapted to block the opening bored through the cap component while being held in place by the spring component.

Abstract: The present invention relates to a piston rod assembly for a drug delivery device, comprising: a piston rod adapted to be operably engaged with a piston of a cartridge containing a medicament, at least one adjusting member displaceably disposed at the piston rod with respect to the piston rod's long axis, and being interconnected with a distal end section of the piston rod, and at least one interlock means adapted to interact with the adjusting member and/or with the piston rod for mutually locking in position the adjusting member and the piston rod in an arbitrary relative position in order to compensate for tolerances of manufacture and/or of assembly.

Abstract: A medical clamp having a semi-circular front engagement portion with reciprocal transverse grooves formed in the opposing clamp surface. The semi-circular engagement portion allows for easy alignment, safe operation and completely eliminates the possibility of misalignment and unintentional release.

Abstract: A fluid infusion device that delivers medication fluid to a user includes a removable fluid reservoir having a reservoir port and a hollow fluid reservoir needle, a base plate having a reservoir port receptacle for the reservoir port and the reservoir needle, and an inlet structure in the reservoir port receptacle to define at least a portion of a fluid chamber. The fluid infusion device also includes a needle sealing element having a base section, an end section opposite the base section, a neck section between the base section and the end section, and a needle opening extending through the base section, the neck section, and the end section. A compression element is coupled around the neck section to impart an inward biasing force near the needle opening.

Abstract: An implantable infusion port comprising a non planar septum, a fluid reservoir of a substantially spherical shape, inlet means to access the reservoir, and optimized outlet means from the reservoir. The present invention provides for a reservoir that precludes angular junctions between portions of the reservoir which can lead to eddies, countercurrents, and stagnation, thereby creating a more laminar and efficient flow pattern within the reservoir.

Abstract: Methods and apparatus for the treatment of the eye to reduce pain can treat at least an outer region of the tissue so as to denervate nerves extending into the inner region and reduce the pain. For example, the cornea of the eye may comprise an inner region having an epithelial defect, and an outer portion of the cornea can be treated to reduce pain of the epithelial defect. The outer portion of the cornea can be treated to denervate nerves extending from the outer portion to the inner portion. The outer portion can be treated in many ways to denervate the nerve, for example with one or more of heat, cold or a denervating noxious substance such as capsaicin. The denervation of the nerve can be reversible, such that corneal innervation can return following treatment.

Abstract: A connecting device (2) for use in the vacuum therapy of wounds has a suction tube (10) and a vacuum-tight and flexible support means (12) for the suction tube (10), on which the suction tube (10) is held in a vacuum-tight manner, wherein the support means (12) can be applied in an essentially vacuum-tight manner to a vacuum dressing (6) that overlaps the wound and seals it with respect to the atmosphere. A fluid feed tube (40) for conveying a fluid medium to the wound space is located in the same plane as the suction tube (10) and extends to the support means (12). The fluid feed tube (40) extends sealingly through an opening (42) in the support means (12) and projects through an opening (20) in the vacuum dressing (6) into the wound space or into a wound support (50) provided there.

Abstract: Systems, methods, and apparatus are provided for detecting leaks in systems for treating a patient with reduced pressure. In one instance, a system includes a distribution manifold for disposing proximate to the tissue site and a sealing member for disposing over the distribution manifold and at least a portion of intact epidermis of the patient. The sealing member has at least a portion that is substantially transparent. The system further includes a reduced-pressure source associated with the distribution manifold for providing reduced pressure to the distribution manifold and a leak-detection member sized and configured to substantially surround the distribution manifold. The leak-detection member includes a detection material that develops a color contrast when a portion is exposed to air and a portion is not exposed to air. The leak detection member works with even low flow systems. Other systems, methods, and apparatus are presented.

Abstract: A wound support (50) for use in the vacuum therapy of wounds, can be disposed in its intended use in a wound space underneath a vacuum dressing (6) sealing the wound space with respect to the atmosphere in an essentially vacuum-tight manner, wherein the wound space can communicate with a suction tube (10) to which a vacuum can be applied through an opening (20) in the vacuum dressing (6). The wound support (50) comprises a flexibly compliant foamed material and has a through-hole (54) that extends in the direction of the wound depth, which is used to insert or pass through a wound-side end section (44) of a fluid feed tube (40). A sleeve (56) is disposed in the through-hole (54) into which this end section (44) can be inserted.

Abstract: The female urination device assists a female in urinating from a standing position and directs the urine a suitable distance from the female. The device comprises a first end having an opening for discharging urine and a second end having an opening for receiving the urine. The opening in the second end is larger than the opening in the first end. The device further comprises a splash guard extending downward from an upper portion of the second end. The splash guard covers a portion of the opening in the second end to provide a sealed perimeter at the second end to contain the urine within the device and prevent leakage of the urine.

Abstract: A washable, antimicrobial, breathable, multi-layered absorbent sheet and article, has an antimicrobial property, inhibiting the growth of bacterial. It is also laminated with a monolithic membrane that allows moisture to migrate through the pores in the membrane whilst forming a barrier to the flow of excess liquid such as would otherwise take place in the absence of the membrane, thus preventing the formation of wet patches to the outer clothing of the wearer and also keeping the wearer feeling more comfortable due to the reduction of humidity and heat inside.

Abstract: A wetness indicator material may be used on a substrate to form a wetness sensor. The sensor may show either the presence or absence of an aqueous-based fluid or water-containing medium, such as vaginal fluid or urine in a personal hygiene article. The wetness sensor may be incorporated into the article. The wetness indicator material includes a standard colorant that does not change color when wetted. The standard colorant increases the range of hues exhibited by the wetness indicator material.

Abstract: A bodily fluid absorbent structure adapted to be stably secured in a state in which a liquid-absorbent core is wrapped with a core wrapping sheet and ensuring a high workability for a process of manufacturing the bodily fluid absorbent structure. A bodily fluid absorbent structure has a first surface and a second surface wherein, on the side of the first surface, a core wrapping sheet and a liquid-absorbent core are bonded to each other by the intermediary of a bond region defined by hot melt adhesive intermittently applied to substantially entire opposite surfaces of the core wrapping sheet and the liquid-absorbent core.

Abstract: A process comprising treating a lignocellulosic material preferably pulp in the presence of a transition metal catalyst with a oxidizing agent selected from a group consisting of hydrogen peroxide, hypochlorite, hypochlorous acid and any combination thereof to form a treated lignocellulosic material having a viscosity equal to or less than about 17 cp and having reducing functional groups selected from the group consisting of aldehyde and aldehyde type functional groups at the C6 and C1 positions but predominating at the C1 position.

Abstract: A soft medical container 1 of the present invention includes: a flexible bag member 2 formed by bonding at least two soft plastic sheets 2a and 2b together, wherein the flexible bag member 2 includes a reclosable mouth 4 and a container portion 21 for holding a liquid material, and at least one of the principal surfaces of the flexible bag member 2 is marked with a scale 2c for indicating the amount of the liquid material; an outlet port 3 fixed to the flexible bag member 2; and a pair of opening/closing operation portions 5a and 5b, wherein the opening/closing operation portions are fixed to the principal surfaces of the flexible bag member, respectively, and each form, together with the soft plastic sheet to which each opening/closing operation portion is fixed, a through path 7a, 7b into which a finger can be inserted from the left side or the right side of the flexible bag member 2.

Abstract: A closed fluid transfer system for fluidly interconnecting a syringe to any one of a patient I.V. set, a vial and an I.V. bag, is provided and includes a first adapter defining a lumen and supporting a seal across a first end of its lumen, the first adapter supporting a rear end of a needle within the lumen, wherein the seal is movable relative to the needle such that a tip of the needle penetrates through the seal; and a second adapter defining a lumen and supporting a seal across a first end of its lumen; wherein when the second adapter is coupled to the first adapter, the second adapter seal abuts the first adapter seal and moves the first adapter seal relative to the tip of the needle such that the tip of the needle penetrates through the abutting first adapter seal and second adapter seal.

Abstract: Provided is a solid antimicrobial agent suitable for portable use, which can continuously release a stable amount of chlorine dioxide even under vibration or shock. An antimicrobial pouch includes: an antimicrobial agent supporting an antimicrobial substance in a porous inorganic solid carrier; a first pouch body receiving the antimicrobial agent; and a second pouch body receiving the first pouch body, wherein the first pouch body includes fine holes on an entire surface, the fine holes having a diameter smaller than a particle size of the inorganic solid carrier, and the second pouch body includes release holes at an edge portion, the release holes through which the antimicrobial substance is released to atmosphere of the second pouch body.

Abstract: Delivery systems for a polymeric tubular implant, kits that include such delivery systems, and methods of treating patients by implanting tubular implants using the delivery systems. The delivery systems include an inner shaft, an expandable member slidably disposed about the inner shaft and configured to receive the tubular implant, and a tubular outer shaft disposed about the inner shaft.

Abstract: A novel electroporation device for the delivery of vaccines that is both effective in generating a protective immune response and tolerable delivery to a subject (or near painless); and also methods of using same device to vaccinate a subject against a variety of infectious diseases and types of cancer in a near painless.

Abstract: Systems and methods for cleaning body cavities are presented. Described embodiments include systems for cleaning feces from the lower GI tract. Also provided are systems for steering such a cleaning system, also useful for steering an endoscope or other tool inserted into a body.

Abstract: A feeding tube is configured for nasal insertion and advancement to the jejunum of a patient. The tube has a plurality of projections disposed along the surface of the distal tube portion for promoting advancement of the tube along the GI tract by peristaltic contractions. The tube includes first and second strings. The first string is aligned along the tube such that upon exertion of a pulling force on the first string, the distal end of the tube flexes in a direction of the force. The second string is aligned such that upon exertion of a pulling force on the second string, the tube is withdrawn from the GI tract responsive to the force. A snare may be provided for capturing the second string to promote withdrawal of the tube through the mouth of the patient.

Abstract: A wire guide grabbing mechanism includes an elongate mandrel having a proximal and distal mandrel end, and a grabber irreversibly attached to the mandrel. The grabber includes a plurality of struts arranged in a reticulated pattern and a plurality of openings defined by the plurality of struts. The grabber is adjustable between an expanded configuration at which the plurality of struts are spread out relative to one another and a contracted configuration at which the plurality of struts are condensed, such that a wire guide may be enmeshed by the grabber in the contracted configuration. Related methodology is also disclosed.

Abstract: The present invention relates to a method and an apparatus for lipid removal using infrared OPO laser. Specifically, the method and the apparatus can remove fat from a living body in a more energy-efficient, rapid and effective manner by irradiating fat in the living body directly with two infrared lasers having wavelengths of about 2,300 nm and about 1,980 nm, which are generated using a pump laser having a wavelength of about 1,064 nm as a light source.

Abstract: A reduced-pressure canister includes a canister body having a fluid reservoir, an inlet for receiving fluids from a patient, and an integral hydrophobic filter formed within a side or top portion of the canister body. The integral hydrophobic filter has a plurality of pores in the canister body that are covered by a hydrophobic coating. Other canisters, methods, and systems are also presented.

Abstract: An electronic capsule (200) features a reservoir (204), and is configured for placement within a reproductive organ, such as the uterus or cervix. While located therein, the capsule dispenses (208), from the reservoir, a substance, such as a reproductive hormone, semen, acidic buffer, fertility drug or other drug, effectively administered from within the organ. In some embodiments, the capsule has on-board sensors (238, 244) and control circuitry in wireless communication with an external processor functioning automatically or guided by a clinician or user, for decisions and timing in administering the sub stance.

Abstract: A surgical instrument includes a housing having a shaft extending therefrom. The housing includes a nose having a neck and a base that defines a diameter greater than that of the neck. A rotation knob has a distal end defining a first aperture and a proximal end defining a second aperture, the apertures cooperating to define a lumen extending through the rotation knob that is configured to receive the shaft. The first aperture defines a diameter that generally approximates a diameter of the shaft. The rotation knob is transitionable between an at-rest position and a flexed position. In the flexed position, the second aperture is expanded to permit passage of the base of the nose into an interior of the rotation knob. In the at-rest position, the second aperture generally approximates the diameter of the neck to rotatably engage the rotation knob about the nose with the shaft extending therethrough.

Abstract: Apparatus and methods are described allow the techniques of endoscopic and laparoscopic surgery to be combined into a minimally invasive hybrid surgical technique called NOTES-assisted laparoscopic surgery. Manual and robotic-controlled versions of a modular laparoscopic tool are described having a small diameter shaft that is delivered laparoscopically to a surgical site. Larger diameter working tips are delivered through a NOTES delivery tube inserted to the surgical site through a natural orifice and joined to the shaft of the modular laparoscopic tool. Larger diameter working tips improve the effectiveness of the modular laparoscopic tools and the number and size of laparoscopic ports used can also be reduced.

Abstract: A minimally invasive surgical portal system, device and method may comprise a top ring assembly removably connected to an arm of a table mounted frame to provide stability and a secure trajectory. The portal system may include a top-ring assembly which may mount to an arm of a table mounted frame. The system may include a removable connection mechanism comprising a spring loaded collar configured to removably connect the top ring assembly to a table mounted frame. A variable adjustment positioner may be removably connected to the arm of the table mounted frame. The system may also include a depth positioning mechanism. The system may further include a light source configured to be placed down the portal tube.

Abstract: A light emitting device for use as a hair removal device is provided. The light emiting device has at least one radiation source for electromagnetic radiation providing at least one operating beam during operation of the device, a housing being intransparent for the operating beam having an output opening, at least one radiation source for electromagnetic radiation providing at least one sensing beam during operation of the device, at least one detector for detecting the sensing beam, at least one sensing window having a contact boundary surface, and a controller communicating with the radiation source providing the operating beam and with a detector and being operable to influence operation of the radiation source providing the operating beam responsive to the sensing beam detected at the detector.

Abstract: The present invention relates to an IPL apparatus that is used as a hair removing machine or cures skin ailments by periodically irradiating Xenon lamp light on the user's skin, the IPL apparatus comprises: a double-voltage unit which has a double-voltage capacitor, and outputs a high voltage by superposing an inputted supply voltage with a voltage charged in the double-voltage capacitor; a charging capacitor which charges energy for turning on a Xenon lamp by accumulating electric charges supplied from the double-voltage unit; a reference voltage generator which sets a charging voltage level charged in the charging capacitor; and a switch unit which is positioned between the double-voltage unit and the charging capacitor, and switches on and off the movement of the electric charges to the charging capacitor from the double-voltage unit by setting an output of the reference voltage generator to a control signal.

Abstract: An ablation balloon to be used for bladder diseases.

Abstract: Methods are provided herein for affecting a region of a subject's body, comprising exposing the region to a cooling element under conditions effective to cool subcutaneous adipose tissue in said region; and increasing the blood flow rate to the cooled tissue by exposing the tissue to an energy source. Methods are also provided for treating subcutaneous adipose tissue in a region of a subject's body, comprising exposing said region to a cooling element under conditions effective to cool said tissue; and exposing the tissue to an energy source to increase the blood flow rate to the cooled tissue, thereby stimulating reperfusion in, and/or causing an ischemia-reperfusion injury to, the cooled tissue.

Abstract: A sealing and/or cutting instrument having a thermally active surface or element which may be used to seal and then cut tissue, ducts, vessels, etc., apart. The instrument may include a thermally active surface or element comprised of a conductor covered with a ferromagnetic material. The instrument may contact tissue with one or more surfaces comprised of a non-stick material. A sensor in communication with the instrument may be used to monitor a therapeutic procedure and signal when sealing and/or cutting of a tissue is complete.

Abstract: A surgical generator and related method for mitigating overcurrent conditions are provided. The surgical generator includes a power supply, a radio frequency output stage, an overcurrent detection circuit in operative communication with an interrupt circuit, and a processor. The power supply generates a power signal and supplies the power signal to the radio frequency output stage. The radio frequency output stage generates a radio frequency signal from the power signal. The overcurrent detection circuit detects an overcurrent of the power signal and/or an overcurrent of the radio frequency signal. The interrupt circuit provides an interrupt signal in response to a detected overcurrent. The processor receives the interrupt signal and supplies a pulse-width modulation signal to the power supply and incrementally decreases the duty cycle of the pulse-width modulation signal in response to the interrupt signal. The radio frequency output stage may be disabled in response to the detected overcurrent.