Abstract: A thoracic catheter system comprises a flexible thoracic catheter for inserting into a thoracic cavity of a human. A distal end of the thoracic catheter has a plurality of apertures. A proximate end of the thoracic catheter is designed to extend out of the thoracic cavity. A three way valve is one of fused with and removably attached to the proximal end of the thoracic catheter.

Abstract: An injection assembly includes a housing with a barrel positioned within the housing. The barrel includes an axis extending from a proximal end to a distal end thereof and a chamber for storing medicine. An elongate anti-rotation shaft is rotationally fixed to the housing and has a non-circular cross-section. The injection assembly includes an inner screw having an inner screw opening to complementarily receive the anti-rotation shaft to prevent rotation of the inner screw with respect to the anti-rotation shaft but allow respective linear translation along the axis. An outer screw is positioned within, and rotatable with respect to, the housing and has an outer screw opening to threadably receive the inner screw, wherein rotation of the outer screw translates the inner screw along the axis and along the anti-rotation shaft. A plunger is coupled to the distal end of the inner screw and is moveable with respect to the chamber to push the medicine out of the chamber when the outer screw is rotated.

Abstract: A steerable guide catheter includes a tip ring at a distal end and one or more pullwires configured to engage with the tip ring when put in tension, the pullwire(s) thereby subjecting the steerable guide catheter to a curving or turning force. The tip ring includes a saddle and one or more pullwire channels allowing the pullwire to be looped over the saddle such that when the pullwire is placed under tension, it abuts against the saddle of the tip ring. Some embodiments include additional catheters axially aligned within or outside of the steerable guide catheter, and include a keying feature aligning the rotation of the multiple catheters. The keys of the keying feature can be formed of a polyamide with a glass microsphere filler, and can be thermally welded to the catheter.

Abstract: Described is a medicament delivery device (1) comprising a case (2) adapted to hold a container (3) of a medicament, a drive mechanism (5) adapted to expel the medicament from the container (3), and a trigger button (6) disposed on the case (2) and operably coupled to the drive mechanism (5). The trigger button (6) has a concave position and a convex position. Movement of the trigger button (6) from the convex position to the concave position causes activation of the drive mechanism (5).

Abstract: In an indwelling needle assembly, a safety mechanism part is provided with an outer-needle-hub engaging part to be engaged with an outer needle hub, and an engaging-part opposing wall. Relative rotation of the outer-needle-hub engaging part and the engaging-part opposing wall is restricted, and at least one of the outer-needle-hub engaging part and the engaging-part opposing wall displaces integrally with urging parts. When an inner needle is pulled out of the outer needle hub, a block part engaged with the inner needle through an inner-needle engaging part is moved relative to the urging parts and forced to a non-contact state, and the urging parts displace in a direction approaching the inner needle, thereby preventing a needle tip of the inner needle from protruding from the safety mechanism part and releasing engagement of the outer needle hub with the safety mechanism part.

Abstract: Plunger systems for expelling a liquid drug from a drug container within a wearable drug delivery device are provided. A rotation system coupled to a plunger rotates the plunger about a central axis of the plunger to overcome a static friction between the plunger and the drug container. After rotating the plunger, a drive system moves the plunger forward into the drug container to expel the liquid drug for delivery to the patient. A collapsible plunger includes a cavity. A radial torsion spring positioned in the cavity can provide an outward radial force on the collapsible plunger. The cavity enables the collapsible plunger to compress radially when entering and passing through a region of a drug container having a relatively narrower width. The radial torsion spring can radially expand the collapsible plunger when entering and passing through a region of the drug container having a relatively wider width.

Abstract: Pump cassettes, infusion systems, and methods are described. An example pump cassette may include a rigid body comprising a frame portion, a base portion, a compliant membrane disposed substantially therebetween, and two opposing longitudinal edge sections. The rigid body may include a controllable fluid pathway defined in part by the compliant membrane and extending from an inlet port to an outlet port. The pump cassette may include a slider coupled to the two opposing longitudinal edge sections and longitudinally articulable with respect to the rigid body.

Abstract: A closure piece for a powder syringe is proposed, having a main body, a sealing element, which is disposed on the main body such that it rests in a sealing manner against a distal opening of a powder syringe, when the closure piece is disposed in the closing position thereof on the powder syringe, and a channel, which passes through the main body and the sealing element and has a proximal and a distal end. The closure piece is characterized by a retaining element, which is configured and/or can be disposed such that, prior to an activation of the powder syringe, any powder from a chamber of the powder syringe is at least substantially, preferably completely, prevented from penetrating the channel, when the closure piece is disposed in the closing position thereof on the powder syringe.

Abstract: A spool and gear mechanism for tensioning and manipulating the steering/deflection control wires of a steerable catheter device provides for a desired level of tension that will allow operation of the device without too little or too much tension in those wires. In a wire-tensioning mechanism for a steerable catheter, the mechanism includes at least a first and second steering/deflection control wire each attached to the spool by winding around its own detent-engaged rotatable gear in the spool and extending out through a radial wall of the spool to engage into a steerable catheter body. In a multi-spool system, the wire-tensioning/winding gears of each spool preferably are accessible for adjustment via apertures of an adjacent spool.

Abstract: A injection-needle cover includes an injection needle enclosure portion, which has paired base-side wall portions, a cylinder portion, paired tip-end-side wall portions, an injection needle contact portion, a hook portion, and a needle tip end fixing portion. The injection needle contact portion is disposed at a position in a base-side axial space, which is a boundary between the base-side axial space and an intra-cylinder space. The injection needle contact portion has a force receiving portion and a connecting portion. The force receiving portion receives a force from the injection needle when the force receiving portion comes in contact with the injection needle. The force receiving portion has an easy sliding portion, which is disposed in an area adjacent to an injection needle, and slides more easily along the injection needle than a case where an edge slides along the injection needle.

Abstract: There are disclosed devices and methods for protecting a user from a sharp tip of a medical needle. In an embodiment, a device includes a central body portion, a medical needle having a sharp tip, a pair of wings in attachment to the central body portion, and a hook-and-loop fastening system disposed on at least one of the wings, and configured to selectively attach the wings together with the medical needle positioned between the wings so as to protect a user from the sharp tip of the medical needle. In another embodiment, a method includes withdrawing a sharp tip of a medical needle from a patient, closing a pair of wings with the medical needle positioned between the wings, and fastening the wings together with the medical needle positioned between the wings so as to protect a user from the sharp tip of the medical needle.

Abstract: A high torque vascular catheter system includes an inner catheter, a proximal outer catheter section, a distal outer catheter section, at least one discrete connection point connecting the inner catheter to the proximal outer catheter section, and at least one discrete connection point connecting the inner catheter to the distal outer catheter section. The distal outer catheter section is more flexible than the proximal outer catheter section. Methods of construction and use of the catheter system are also disclosed.

Abstract: An intravascular catheter for peri-vascular or peri-urethral tissue ablation includes multiple needles advanced through supported guide tubes which expand around a central axis to engage the interior surface of the wall of the renal artery or other vessel of a human body allowing the injection an ablative fluid for ablating tissue, such as nerve fibers in the outer layer or deep to the outer layer of the vessel, or in prostatic tissue. The system may also control the depth of penetration of the ablative fluid into and beyond the tissue of the vessel wall. The catheter may also include structures which provide radial or lateral support to the guide tubes so that the guide tubes expand uniformly and maintain their position against the interior surface of the vessel wall as the sharpened injection needles are advanced to penetrate into the vessel wall.

Abstract: A delivery tool connectable with a syringe can be used to deliver a viscoelastic solution. The tool includes a first segment, a second segment and an inner lumen defined by the first and second segments. A distal portion extends from the second segment in a curved manner.

Abstract: A syringe cradle for holding a syringe, the syringe cradle comprising a syringe holder at a proximal end for engaging a barrel of a syringe and a rider for pressing on a plunger of the syringe, a cylindrical body for surrounding the syringe, a distal cap for closing a distal end of the cylindrical body, a stepwise advancing mechanism for advancing the rider along the cylindrical body towards the proximal end, and a stopping mechanism to prevent the rider from moving backwards towards the distal end of the cylindrical body.

Abstract: An optically induced injection device is provided. The optically induced injection device includes: an injection needle, a light generator providing light to an affected area, a first optical cable which is disposed in the injection needle and through which the light passes, and an injection unit disposed in the injection needle and providing an injection solution to the affected area while the light is provided to the affected area.

Abstract: An irrigation and aspiration system is disclosed. The system can be configured to aspirate and irrigate alone, sequentially or concurrently. The system can be configured to aspirate and irrigate the nasal cavity. The system can be manually controlled. The system can have removable and easily cleanable reservoirs for aspirant and irrigant.

Abstract: Some embodiments of a medical device anchor system include an anchor device that receives a medical instrument (such as a catheter or the like) and secures the instrument in place relative to a skin penetration point. In some circumstances, the anchor device may allow the anchor device to be used after medical instrument is already in place without the need for a second penetration point for the anchor device.

Abstract: A medical elongated body is disclosed, which can improve the operability by suppressing anisotropy of torque transmission performance in accordance with the rotational direction while maintaining flexibility. The medical elongated body has a proximal shaft, which extends in an axial center direction and includes at least a part of which a spiral slit is formed. The proximal shaft includes a site in which the spiral inclination angles, which are angles in an extending direction of a spiral of the slit with respect to a cross-section orthogonal to the axial center direction, are different from each other, and a stepped portion in which the angle of the slit changes locally with respect to the spiral inclination angle is formed on one opposed surface constituting the slit, and an abutting portion on which the stepped portion abuts when the proximal shaft is twisted.

Abstract: The present invention relates to a catheter apparatus with an anchoring device to stabilize the catheter tip when in use, such as when infusing, injecting, or delivering substances, devices or other catheters into a patient. The apparatus according to various embodiments deploys an anchoring device that stabilizes the catheter tip and enables adjustment of the blood flow during use.