Abstract: An energy delivery device for treating a patient includes a probe body; a plurality of guide sleeves positioned inside the probe body and adapted to be deployed radially away from the probe body and into tissue of the patient; and a plurality of elongate electrode elements each adapted to receive electrical treatment energy from an energy source and adapted to be deployed into the tissue through a corresponding deployed guide sleeve. The guide sleeves provide a structural pathway for guiding the electrodes along their intended trajectory and for determining the angle of deployment of the electrodes relative to the longitudinal axis of the probe body.

Abstract: A catheter insertion device that allows for single-handed insertion of the catheter within the vasculature of the patient is disclosed. The catheter insertion device includes a handle, a needle cannula partially within the handle, a guidewire partially within the handle and the needle cannula, and a first actuator connected to the handle and the guidewire. The guidewire is movable relative to the handle in a distal direction away from the handle, and in a proximal direction towards the handle. A catheter assembly is removably coupled to the handle and is configured to slide on the needle cannula. A catheter hub may be connected to a proximal end of the catheter, and a catheter advancer base may be releasably connected to the catheter hub. The catheter insertion device may also include a needle support pivotally connected to the handle for supporting the needle cannula on a cantilever portion thereof.

Abstract: The invention relates to an inserter device for subcutaneously inserting a medical device, the inserter device comprising an outer part comprising one or more locking elements including a first locking element and one or more release elements including a first release element; a housing; and a functional part accommodated in the housing; wherein the housing comprises a sidewall with an inner surface forming a cavity, the housing extending from a first end to a second end along a first axis and comprising one or more housing guide members including a first housing guide member for engagement with one or more guide members of the functional part, and where the housing is at least partly covered by the outer part; wherein the functional part comprises a first part with a first body extending from a first end to a second end along the first axis, the first part comprising one or more first locking members; a second part releasably connected to the first part and comprising a second body extending from a first end

Abstract: An ultrasonic flow meter for measuring the flow of a fluid includes a transducer assembly having an adjustable length. The transducer assembly is positioned in a transducer port in the meter body and includes a piezoelectric capsule axially positioned adjacent a first end of the transducer assembly. The piezoelectric capsule includes a transformer, a piezoelectric element axially spaced from the transformer, and axially-extendable wireway. A conductor extends through the extendable wireway and electrically couples the piezoelectric element with the transformer.

Abstract: An injection device is provided having a housing with a plunger stop block and a cartridge assembly for holding a fluid. The cartridge assembly has a plunger that has an injection needle. A main spring assembly having a main spring and a plate having first and second support arms is positioned in the housing. A release component is positioned in the housing and includes a release ring having teeth with sliding surfaces, and the release ring defines first and second release slots. An actuator having an actuator ring from which actuator rods extend is positioned in the housing. The actuator rods can engage the sliding surfaces of the teeth, such that when a force is applied to the actuator ring the release component rotates and releases the main spring, and this causes the plunger to contact the plunger stop block and drive fluid out of the injection needle.

Abstract: In accordance with some embodiments of the invention there is provided a device for vaporizing one or more holes in tissue, comprising an array of vaporizing elements and a heating element configured to heat the vaporizing elements, wherein a geometry of at least a portion of the vaporizing elements is configured to prevent excessive penetration of other vaporizing elements into the tissue. In some embodiments, the vaporizing elements are heated to a temperature ranging between 300-600 degrees Celsius.

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 device and method is provided to gain access to interior body regions. The system includes a safety needle assembly, a stylet assembly, a blade assembly, an obturator assembly, and a dilator assembly. The safety needle assembly or stylet assembly accesses an interior body region, after which the blade assembly expands the pathway created by the safety needle assembly or stylet assembly. The obturator then further expands the pathway and delivers the dilator assembly to the desired location. The safety needle assembly, obturator assembly, and blade assembly are removed, leaving the dilator assembly in place for future procedures.

Abstract: A safety intravenous catheter that includes a passive release feature. The catheter assembly includes ready, safe, and released positions. In the release position, a retainer being in a proximal retainer position relative to a collar enables release of the catheter hub from the catheter insertion device. The sharp tip of the insertion needle remains inaccessible in the release position in order to prevent unwanted needle sticks.

Abstract: Luer activated valves are disclosed herein that are capable of being integrated into different types of medical devices, such as, IV catheters, sheath introducers, tear-away sheaths, etc. for the purpose of regulating the passage of fluids and/or devices into and out of such devices.

Abstract: The present application discloses a needle tip shielding device for protection of a needle tip of a needle. The needle tip shielding device comprises a fixing arrangement having a proximal side and a distal side, which fixing arrangement is comprising at least one engaging element, which engaging element is resilient and resiliently striving from a compressed state towards an expanded state, in which expanded state the shortest distance between a point of said engaging element and the central axis of said needle tip shielding device is longer than the shortest distance between said central axis and any other point of said needle tip shielding device. A catheter instrument comprising the needle tip shielding device and a method for manufacturing is also disclosed.

Abstract: A catheter insertion device that allows for single-handed insertion of the catheter within the vasculature of the patient is disclosed. The catheter insertion device includes a handle, a needle cannula partially within the handle, a guidewire partially within the handle and the needle cannula, and a first actuator connected to the handle and the guidewire. The first actuator is movable in a proximal direction relative to the handle to cause the guidewire to move in a distal direction away from the handle, and is movable in a distal direction relative to the handle to cause the guidewire to move in a proximal direction towards the handle. The catheter insertion device can also include a needle support that stabilizes the needle cannula during insertion of the needle cannula into a patient.

Abstract: A method of delivering a prosthetic heart valve to the aortic valve annulus while a patient's heart is beating is disclosed. The method includes accessing the left ventricle through an intercostal incision and forming a puncture in the left ventricle. A guidewire is advanced into the left ventricle and through the aortic valve. An introducer is passed over the guidewire and into the left ventricle. A valve delivery device is advanced over the guidewire and through the introducer until a prosthetic heart valve positioned thereon is located within the aortic valve. The prosthetic heart valve is then radially expanded within the aortic valve annulus for replacing the function of the native aortic valve.

Abstract: Method, system and device involving a needle device with a needle safety element with improved stable structure. A frame can surround the needle safety element to provide added stiffening of the needle safety element. The frame can include stays extending laterally of the needle safety element. The needle safety element with the frame can be slidably located on a needle and in a catheter hub in a ready to use position and be removable from the catheter hub in a protective position.

Abstract: The invention relates to an intravenous catheter apparatus comprising a catheter hub arranged at a proximal end of a catheter tube, the catheter hub having an inner surface defining a chamber; a needle having a needle tip at its distal end and extending through the chamber and the catheter tube when in a ready position; and a needle guard slidably arranged on the needle and received in the chamber when the needle is in its ready position, wherein the needle guard is configured to guard the needle tip upon withdrawal of the needle from the catheter hub.

Abstract: A catheter insertion device for inserting a catheter into a body of a patient includes a retractable needle for establishing access to a subcutaneous vessel of the patient and a manually extensible guidewire for guiding the initially attached catheter into the vessel. In one embodiment, the catheter insertion device includes a housing, a hollow needle retractably extending from the housing, a catheter initially disposed on a portion of the needle, a guidewire including a portion initially disposed within the needle, a guidewire advancement feature configured to selectively advance a distal end of the guidewire distally past a distal end of the needle, and a needle retention component configured to selectively enable retraction of the needle into the housing. The needle retention component is configured to be actuated by the guidewire advancement feature. In one embodiment, one-handed operation of the device is possible.

Abstract: The present disclosure is directed to a catheter insertion device, which has a catheter hub at the proximal end of a catheter, a tubular needle hub, at which a hollow needle is fixed and extends through the catheter hub and the catheter in a ready position such that the needle tip projects over the distal end of the catheter, a protective barrel which is received in the tubular needle hub in the ready position and is releasably connected to the catheter hub, and a pressure spring arranged between the needle hub and the protective barrel and which displaces the needle hub and the protective barrel apart from each other in an axial direction, wherein a manually operable holding member is provided between the needle hub and the protective barrel, and holds the needle hub in the ready position at the protective barrel against the bias of the pressure spring, so that after the holding member is released, the pressure spring moves the needle hub into a protective position in relation to the protective barrel, in wh

Abstract: The invention relates to oligofluorinated coatings and their use in drag delivery. The oligofluorinated coatings are compositions comprising formula (XVII). These coatings are used in a method of delivering a biologically active agent to a tissue surface in a mammalian tissue. This method occurs by contacting the surface with the coating including an oligofluorinated oligomer and a biologically active agent wherein the coating resides on the tissue surface and release the biologically active agent to the tissue surface.

Abstract: A microcatheter for delivery of embolic fluids includes an outer member dimensioned for insertion within a blood vessel adjacent an embolization site. The outer member defines a first longitudinal lumen, and an inner member is selectively positionable within the first longitudinal lumen of the outer member. The inner member defines a second longitudinal lumen and has a delivery port in fluid communication with the second longitudinal lumen for passage and delivery of embolic fluids toward the embolization site. A valve is disposed within the outer member. The valve is dimensioned to establish a substantial seal about the inner member, to minimize entry of the embolic fluids within the first longitudinal lumen of the outer member subsequent to delivery thereof toward the embolization site.

Abstract: A catheter assembly is disclosed, which includes a catheter, a catheter hub coupled to the catheter, an inner needle having a needlepoint, a housing coupled to the inner needle, and a protector that covers at least the needlepoint of the inner needle in accordance with evulsion of the inner needle from the catheter. In an initial state, the catheter and the inner needle are exposed from a leading end of the housing, and the catheter hub and the protector are housed in the housing.

Abstract: Embodiments of a catheter insertion device are discussed comprising: an approximately hollow cylindrical catheter sleeve, at whose distal end a catheter is attached; a needle sleeve with a hollow needle, which is attached thereto and which, when ready for use, extends through the catheter sleeve and the catheter, and; a needle protective element that is arranged inside the catheter sleeve while being able to move on the needle. Said needle protective element has an engaging section that engages with an engaging device, which is formed in the vicinity of the needle tip, when the hollow needle is withdrawn from the catheter sleeve. A check valve is placed inside the catheter sleeve between the catheter and the needle protective element. The hollow needle, when ready for use, extends through said check valve, and the check valve automatically closes once the needle is withdrawn.

Abstract: The invention relates to an inserter device for subcutaneously inserting a medical device, the inserter device comprising an outer part comprising one or more locking elements including a first locking element and one or more release elements including a first release element; a housing; and a functional part accommodated in the housing; wherein the housing comprises a sidewall with an inner surface forming a cavity, the housing extending from a first end to a second end along a first axis and comprising one or more housing guide members including a first housing guide member for engagement with one or more guide members of the functional part, and where the housing is at least partly covered by the outer part; wherein the functional part comprises a first part with a first body extending from a first end to a second end along the first axis, the first part comprising one or more first locking members; a second part releasably connected to the first part and comprising a second body extending from a first end

Abstract: A catheter has a multifunctional “virtual” tip electrode with a porous substrate and a multitude of surface microelectrodes. The surface microelectrodes are in close proximity to each other and in a variety of configurations so as to sense tissue for highly localized intracardiac signal detection, and high density local electrograms and mapping. The porous substrate allows for flow of conductive fluid for ablating tissue. The surface microelectrodes can be formed via a metallization process that allows for any shape or size and close proximity, and the fluid “weeping” from the porous substrate provides more uniform irrigation in the form of a thin layer of saline. The delivery of RF power to the catheter tip is based on the principle of “virtual electrode,” where the conductive saline flowing through the porous tip acts as the electrical connection between the tip electrode and the heart surface.

Abstract: A safety medical connector includes a composite inner pipe, a first resilient element, and a second resilient element. The first resilient element hermetically seals the entrance of the composite inner pipe. In operation, the first resilient element is pushed aside such that the entrance of the inner pipe opens. After use, the second resilient element drives the composite inner pipe and the first resilient element to restore position. Hence, the safety medical connector advantageously features reduced liquid residue and enhanced structural stability.

Abstract: The present invention is directed to bipolar ablation systems. A bipolar electrode system for ablation therapy is disclosed, including a pressure-sensitive conducting composite layer and a pair of electrodes in electrical conductive contact or communication with the pressure-sensitive conducting composite layer. Energy (e.g., ablation energy) is delivered via the pressure-sensitive conductive composition when sufficient pressure is applied to transform the pressure-sensitive conductive composite to an electrical conductor. An electrically insulative flexible layer, which may include a passageway for a fill material is also disclosed. In some embodiments, the systems can also be used for targeted delivery of compounds, such as drugs, using a bipolar electrode.

Abstract: An infusion set includes a base (221) and a flexible catheter (242) movable from a first catheter position disposed substantially entirely within the base (221) to a second catheter position in which a free end of the catheter (242) is disposed externally of the base (221). An introducer needle (234) is located within the catheter (242) and is movable between a first introducer needle position disposed substantially entirely within the base (221) and a second introducer needle position in which a free end of the introducer needle (234) is disposed externally of the base (221). A spring (281) is activated to move the catheter (242) from the first to the second catheter position and the introducer needle (234) from the first to the second introducer needle position to facilitate insertion of the catheter (242).

Abstract: Method, system and device involving a needle device with a needle safety element with improved stable structure. A frame can surround the needle safety element to provide added stiffening of the needle safety element. The frame can include stays extending laterally of the needle safety element. The needle safety element with the frame can be slidably located on a needle and in a catheter hub in a ready to use position and be removable from the catheter hub in a protective position.

Abstract: The invention relates to an energy application planning apparatus for planning an application of energy to an object (3) like a tumor. An energy application element representation represents an energy application element (5) like an ablation needle including an energy application part for applying energy and a sensing part (7). An arrangement of the energy application element (5) with respect to the object (3) is determined depending on the positions of the energy application part and the sensing part (7) with respect to the energy application element (5) as defined by the energy application element representation and depending on the object representation. The application of energy can therefore not only be planned such that the application of energy is performed as desired, but also such that the object and/or a surrounding of the object are sensible as desired. In this way, the planning procedure can be improved.

Abstract: A safety clip that securely and reversibly attaches to an assembly of a catheter and needle is disclosed. The safety clip securely enshrouding a needle tip of the needle following use of the needle.

Abstract: A method of delivering a prosthetic heart valve to the aortic valve annulus while a patient's heart is beating. The method includes accessing the left ventricle through an intercostal incision and forming a puncture in the left ventricle. A guidewire is advanced into the left ventricle and through the native aortic valve. An introducer sheath is passed over the guidewire and into the left ventricle. A prosthetic heart valve is advanced over the guidewire and through the introducer sheath using a delivery catheter. After positioning the prosthetic heart valve in the native aortic valve, the prosthetic heart valve is radially expanded in the aortic valve annulus for replacing the function of the native aortic valve.

Abstract: The present invention discloses a catheter instrument 1000 comprising a needle tip shielding device 100, a catheter hub 200 and a needle unit 300, wherein the needle unit 300 is provided with connecting means 301 for connection to the catheter hub 200, and with connecting means 302 for connection to an external device.

Abstract: An intravenous catheter apparatus having a needle having a needle shaft, a needle tip at the distal end of the needle shaft and a needle hub mounted to the proximal end of the needle shaft, an intravenous catheter tube mounted to a catheter hub and a needle guard movable on the needle shaft. The needle guard having a base portion having a needle passage extending in an axial direction from a proximal side of the base portion through the base portion to a distal side of the base portion, first and second arms extending substantially in the axial direction from the distal side of the base portion and a distal wall which is transversely arranged at a distal region of the first arm. A recess is provided in the needle guard that receives a stopping element for stopping movement of the needle shaft relative to the needle guard.

Abstract: A primary lumen and a secondary lumen, which is formed so as to be expandable, are formed inside a sheath main body having a deformation portion which is disposed so as to include at least a part of the outer peripheral portion of the sheath main body. The deformation portion is deformed so as to be expanded outwardly in accordance with the expansion of the secondary lumen.

Abstract: A method of sterilizing an object having at least first and second openings toward an inner space of the object includes connecting the first opening to a feed line for a sterilization agent, connecting the second opening to an outlet line for the sterilization agent, and conducting the sterilization agent through the feed line into the inner space, through the inner space, and out of the inner space through the outlet line.

Abstract: Configurations are described for assisting execution of a percutaneous procedure while protecting the vascular pathway to the operational theater. One embodiment is directed to a system for deploying a device to a distal location across a diseased vessel, comprising a sheath comprising an expandable distal portion comprising a porous wall defining a lumen therethrough, the distal portion having a collapsed configuration, wherein the sheath has a first cross sectional outer diameter and a first lumen inner diameter, and an expanded configuration, wherein the sheath has a second cross sectional outer diameter and a second lumen inner diameter; wherein in the collapsed configuration, the sheath is configured to be advanced across at least a portion of the diseased vessel to a position adjacent the distal location without substantial size interference between the first cross sectional outer diameter of the sheath and an inner diameter profile of a lumen of the vessel.

Abstract: A needle shield comprising at least two different plastic materials of different flexibility and a central aperture of variable diameter. The central aperture comprises a first diameter for retaining a needle cap therein. The diameter of the central aperture changes upon removal of the needle cap from the first diameter to a second diameter by virtue of a memory effect of the material of the needle shield. The needle shield is made by an injection molding process.

Abstract: A soft cannula is inserted into tissue and affixed to skin. A cannula arrangement moves within a housing and provides the soft cannula and a guiding needle extending through the cannula to temporarily stiffen it. A drive effects an insertion movement of the cannula arrangement from a first position, where a puncturing tip is pulled back relative to a face of the housing, into a second position, where the puncturing tip protrudes beyond the face, and automatically effects a retracting movement of the guiding needle into a third position, where the puncturing tip is pulled back relative to the face. The face is formed by a base plate affixed to the housing so that when the cannula arrangement is in the second position, the face detaches from the housing. A holder element is connected to the soft cannula and couples to the base plate in the cannula arrangement's second position.

Abstract: According to some embodiments, an ablation device comprises an elongate body (e.g., a catheter) having a proximal end and a distal end, a first electrode (e.g., a radiofrequency electrode) positioned at the distal end of the elongate body, at least a second electrode (e.g., a radiofrequency electrode) positioned at a location proximal to the first electrode, the first electrode and the second electrode being configured to contact tissue of a subject and deliver radiofrequency energy sufficient to at least partially ablate the tissue, at least one electrically insulating gap positioned between the first electrode and the second electrode and a filtering element configured to present a low impedance at a frequency used for delivering ablation energy via the first and second electrodes.

Abstract: A safety shield apparatus is provided that includes a housing that defines a cavity. A distal end of the housing includes a cover having a movable tab. A hub is disposed for movement within the housing and includes a needle having a distal end and a movable projection. The hub is biased between an extended position, such that the distal end of the needle is exposed and the movable projection is releasably disposed with the cavity, and a retracted position whereby the distal end of the needle is disposed within the housing. The movable tab is engageable with the movable projection to release the movable projection from the cavity to facilitate movement of the hub. The distal end of the housing may define a lip that is configured to capture the distal end of the needle. The hub can define an angled distal surface to orient the needle out of axial alignment with the housing and into capture with the lip.

Abstract: A closed-ended catheter assembly that includes an electrically conductive pathway is disclosed. The conductive pathway enables electrical signals, such as ECG signals produced by a patient's heart, to pass through the closed-ended tip of the indwelling catheter while still preventing unintended fluid flow. In one embodiment, therefore, a catheter assembly is disclosed and comprises an elongate catheter tube including a closed distal end. The catheter tube defines at least one lumen and includes a valve defined in the catheter tube that is configured to selectively enable fluids to pass therethrough. The catheter tube includes a conductive element that provides an electrically conductive pathway between the at least one lumen and an exterior portion of the catheter. The conductive element includes a porous material extending between the at least one lumen and the exterior portion of the catheter, the porous material being transmissive to electrical signals and non-permeable to blood.

Abstract: The present disclosure is directed to an IV-catheter insertion device, which comprises a catheter hub at the proximal end of a tubular catheter, a protective barrel releasably joined to the catheter hub in a ready position, a needle hub with an attached hollow needle, the hollow needle extending through the catheter hub and the tubular catheter in the ready position such that that needle tip projects distally of the distal end of the tubular catheter, wherein the needle hub is displaceable in the protective barrel, and a spring clip as a needle guard element whose proximal rear wall is fixed at a distal end area of the protective barrel by means of holding members, wherein the protective barrel and the catheter hub are held by the spring clip in the ready position, and the spring clip is released from the catheter hub in a protected position in which the spring clip covers the needle tip.

Abstract: Some embodiments of a medical device anchor system include an anchor device, a tether, and an adapter for securing a medical instrument (such as a catheter or the like) in place relative to a skin penetration point using subcutaneous anchors.

Abstract: An optical obturator for penetrating tissue and being at least partially positionable within a cannula assembly. The obturator may include an obturator housing at a proximal end of the obturator and may configured to be grasped by a user. The obturator housing may define an opening for receiving an endoscope, the obturator housing including an endoscope retention mechanism adapted for securing and stabilizing an endoscope inserted therethrough. The obturator housing may also include at least one attachment mechanism for enabling selective attachment and detachment of the obturator housing to the cannula assembly. The obturator may also include an obturator shaft integrally formed with the obturator housing. The obturator shaft may define a hollow interior configured to receive the endoscope inserted through the opening. A penetrating member is disposed at the distal end of the obturator shaft. The obturator may be formed as a single component, preferably from transparent material.

Abstract: Configurations are described for assisting in the execution of a percutaneous procedure while protecting the vascular pathway to the operational theater, which may comprise diseased tissue. A railed sheath may be utilized which is controllably expandable and collapsible, and may comprise two or more elongate rail structures configured to assist in the distribution of loads to associated diseased tissue structures, while also contributing to the deployment of percutaneous tools by maintaining alignment of such tools with the railed catheter and associated anatomy.

Abstract: An indwelling needle is provided which has a simple structure and is capable of securely mounting a needle tip protective tool on the tip portion of an internal needle. The indwelling needle A consists of an external needle 10 including a cannula 11 and a housing 12, an internal needle 20 including a metal needle 21 and a hub 22 and a needle tip protective tool 30. The needle tip protective tool 30 is mounted on the housing 12 with the metal needle 21 inserted into an inner section so that the metal needle 21 can be removed together with the internal needle 20 from the external needle 10. A main body 31 of the needle tip protective tool 30 has a cylindrical shape. Window sections 34a, 34b are provided on opposing circumferential surfaces of the main body 31. On a rear end marginal section of window section 34a, a movable gripped section 32 is provided whose outer section 32b extends toward the outside of the main body 31 and whose end consists of a grip section 32c.

Abstract: The invention relates to an infusion part (1), as well as to a simple, non-expensive inserter for said infusion part which inserter would be easy and safe for the user to handle during use and to dispose of after use. The inserter comprises a housing (26), a spring unit (19) and a sled unit (11) connected to the housing via the spring unit. The infusion part comprises a cannula (6) integrated with an insertion needle (7) and a needle protection (4) releasably secured to the infusion part and removable from the position where it protects the needle by applying a force perpendicular to the axis of the needle.

Abstract: A needle-based medical device and method of manufacturing the same are disclosed. A needle device includes a hub having a longitudinal axis; a needle having a sharp distal tip; and a needle shield assembly associated with the needle and moveable from a non-shielding position to a shielding position. In the shielding position, the sharp distal tip is covered by at least part of the needle shield assembly. A latch is further provided for engaging with the hub when the needle shield assembly is in the non-shielding position; as well as a locking member operably connected to the needle shield assembly, and located at least partially within the hub when the needle shield assembly is in the non-shielding position. The latch and locking member lock the latch to the hub, such that when the needle shield assembly moves into the shielding position, the locking member moves generally proximally, unlocking the latch.

Abstract: A catheter assembly includes a tubular insertion portion; a support portion that is connected to a proximal end side of the insertion portion and has therein a flow passage communicating with an inside of the insertion portion; a valve body that is disposed in the flow passage and includes: a blocking membrane configured to inhibit a flow of fluid, and an opening/closing part configured such that the blocking membrane is at least partially openable and closeable via the opening/closing part; and an insertion member which is arranged proximal of the blocking membrane and is insertable into the opening/closing part by moving in a distal direction. The opening/closing part is formed as a single slit penetrating the blocking membrane, the slit having a distal end opening and a proximal end opening, and a length of the distal end opening being smaller than a length of the proximal end opening.

Abstract: A safety shield incorporating a locking clip to prevent inadvertent sticks or punctures by a needle is provided. The needle can be a needle cannula or other piercing member, disposed in a sliding orientation in the safety shield, such that the needle slides within the locking clip between an aperture at a proximal end of the locking clip and a trigger hole at a distal end of the clip. Upon withdrawal of the needle after use, a binding orientation is triggered when the needle tip is withdrawn from the trigger hole. As further protection to the bi-directional lock afforded by the binding orientation, the needle is provided with a safety stop to prevent movement of the needle tip through the aperture. In other aspects, the safety shield includes a trigger bushing, in which the needle cannula is slidably received, that is sized larger than the aperture.

Abstract: Cannula inserter comprising a casing with a distal end, intended to be placed in proximity to the skin of a patient, and an opposite proximal end, a piston fixed at least temporarily by retaining means, drive means designed to exert a propulsion force of the piston in the direction counter to the trigger, and release means intended to release the piston; the inserter additionally comprising a needle fixed to a support; the piston being mounted in the casing in such a way that, once released, it reaches and remains temporarily in a first position, then a second position; the needle and its support also being arranged so as to be able to be driven by the piston in a direction corresponding to the main orientation of the casing, before the piston reaches said first position, and so as to be able to effect an automatic rotation about an axis perpendicular to said main orientation during the movement of the piston between said first position and said second position.