Abstract: The present application provides an arterial cannula system for transporting blood from an extracorporeal pump to a patient's femoral artery and aorta comprising first and second cannula portions. The first cannula portion has a proximal portion, a distal portion, and an intermediate portion and is configured for insertion through the femoral artery. It includes a first lumen extending from the proximal portion to the distal portion to deliver cardioplegic fluid, a second lumen communicating with an expandable occluding member at the distal end portion to inflate the occluding member to occlude blood flow, and a third lumen extending from the proximal portion to the intermediate portion to transport blood from the extracorporeal pump to the femoral artery. The second cannula portion is configured for insertion into the subclavian artery so that an opening in the distal portion is in communication with the aorta.

Abstract: A safety syringe construction (10) including a conventional syringe member (20) equipped with a fixed tubular male sleeve member (20) and spring biased moveable tubular female sleeve member (30) which is slidable relative to the tubular male sleeve member (30). The male (30) and female (40) sleeve members are provided with a locking unit (15) for releasably engaging the female sleeve member (40) relative to the male sleeve member (30).

Abstract: A medical coupling has male and female members (1, 2) which push fit together, and a screw cap (7) which secures the members against separation. To prevent unintentional release of the cap, locking means, such as a ratchet and pawl mechanism, are provided between the cap and female member. An outer shell (25) can enclose the cap for providing an enclosure around the fluid connection to deter bacterial contamination. Alternatively a separate capsule can enclose the coupling for this purpose. The two members and cap are connectable by holding gripping portions which are located remotely from the parts forming the fluid connection to reduce risk of contamination. A valve system is associated with the female member for closing a flexible tube connected to this member and to displace liquid to fill the space left in this member when the male member is disconnected from it.

Abstract: A liquid medicine-prescribing apparatus for a blood vessel injection comprising a lowercase 10 which is combined with two lateral faces 10a, 10b, a running part 60 which has the feed means of liquid medicine and which is inserted into a reception space 24 formed by a cover plate 20 which is open and shut by a hinge 300 of lowercase 10 so that mounting and separation may be done, and an uppercase 30 which is open and shut by a hinge 21 of a cover plate 20, and on which the lowercase 10 is combined to be open and shut by forming the reception space 33 which receives liquid medicine pack.

Abstract: A tissue penetrating cannula comprises a tube having a sharp end formed by a first cut surface defining an acute angle to the longitudinal axis of the tube and forming a generally oval tube edge defining a similar acute angle to the longitudinal axis. A second cut surface is defined along a right hand forward portion of the oval tube edge, and a third cut surface is defined along a left hand forward portion of the oval tube edge. A second and third cut surfaces define between them a forward cutting surface in the tube edge. A fourth cut surface at the point intersects the second and third cut surfaces to cause the cutting surface to be spaced inwardly of the tube outer wall. Fifth and sixth cut surfaces are provided to respectively flatten the tube edge between the first and second surfaces and the first and third surfaces.

Abstract: A pre-slit injection site (34) includes a housing (40) with a flow path therethrough. A first end (42) of the housing (40) carries a pre-slit septum (52). One form of a blunt cannula (98), usable with the injection site (34), carries a locking member (100). When the pre-slit injection site (34) slidably receives the blunt cannula (98), the locking member (100) latches to the injection site (34) and creates a mechanically coupled unit. Another form of the cannula (280) includes a tube having a tapered distal end region (298) and having elongate discharge slots (294) for reducing contact surface area and for directing the flow laterally out of the cannula. The cannula may also include a rounded lead post (330), an annular barb (394), and axially oriented grooves (268).

Abstract: The invention features an injection device for injecting a liquid or semi-solid composition into a subject.

Abstract: An injector instrument and a forceps tap for use with an endoscope. The injector instrument is provided with at least one needle formed of a synthetic resin and is further provided with a variety of stopper devices which limit the amount that the needle can extend from the endoscope. The injector instrument may be formed having a curved or easy-to-bend portion. The forceps tap is provided at the entrance to a forceps channel of the endoscope to accommodate at lease two injector instruments or other treatment accessories such that the treatment accessories can be inserted in a single forceps channel and such that substances (such as internal fluids from a human cavity) are held inside the forceps channel.

Abstract: Intracorporeal warming apparatus includes a catheter for placement in a patient, the catheter having a distal end and a proximal end. An antenna lies adjacent to the distal end of the catheter and a cable having one end connected to the antenna extends from the proximal end of the catheter. A transmitter transmits a first signal of a first frequency capable of heating blood or tissue and a receiver receives a second signal of a second frequency which is indicative of thermal radiation, the receiver producing an output signal in response thereto. A diplexer connects the proximal end of the cable to the transmitter and receiver so as to couple the first signal from the transmitter only to the antenna and the second signal from the antenna only to the receiver so that the apparatus can simultaneously heat the blood or tissue and determine the actual temperature of that material.

Abstract: The invention generally relates to a needle assembly of the kind having a needle, an elongate blunting device, a shifting member, and a flash chamber. The needle is of the kind that has a needle proximal end, a sharp needle distal end and a needle canula extending therethrough. The elongate blunting device is at least partially located within the needle canula. The elongate blunting device is of the kind that has a blunting device proximal end, a blunting device distal end, and a blunting device blood flow passage therethrough through which blood can flow from the blunting device distal end to the blunting device proximal end.

Abstract: An inner cylindrical member has a first pair of locking projections on opposite sides of the member at a proximal end and has an extension to which a syringe needle is secured. A second pair of resilient locking projections are spaced from the first pair forming an axially extending locking recess there between at the proximal end. The resilient projections depress to a release position. A pair of finger gripping tabs protrude from the distal end. An outer cylindrical member receives the inner member in its bore. The outer member has an extension which receives the inner member extension and which extensions have mating detents for releasably securing the members in a needle extended use position with the members juxtaposed in nested concentric relation. The outer member at a distal end has projections which mate in the locking recesses at the proximal end to lock the outer member in an extended needle protective position.

Abstract: An apparatus was disclosed comprising a housing having a proximal end and a distal end, the housing slidably mounted on a needle shaft below a needle distal tip, the clip having a bridge, a proximal end coupled to the bridge and a distal end coupled to the bridge. The clip is disposed within the housing such that it retains a resilience imparting a biasing force to the clip ends such that the ends grip the needle shaft. When the housing is advanced beyond the needle distal tip, the clip distal end releases to contain the needle distal tip within the housing.

Abstract: The invention concerns a self-retracting syringe needle comprising a body (1) supporting an injection needle, a plunger (4), a sheath (5) enclosing the body (1), a spring (6) arranged between the sheath (5) and the body (1), flexible pins (7) co-operating as limit stop with the body (1) to define a first position blocking the body (1) relative to the sheath (5) in a first direction. The syringe comprises a circlip (9) mounted around the body (1) in a position compressed between the sheath (5) and the body (1) in the first blocking position and in a released position in the second blocking position, the circlip (9) having at least one part (9a) with external contour of greater dimension than the sheath (5) internal dimension to block the body (1) in the sheath (5) when it is in the second blocking position, in the direction opposite to the first.

Abstract: A syringe with needle retraction arrangement is adapted for automatically retracting the hollow needle into a hollow plunger after use so as to prevent the used needle from contacting with anybody. The syringe provides a closure seat at one end of a hollow plunger, wherein when the closure seat is intentionally pushed towards a mounting seat affixed in a mounting portion of a hollow barrel, a pusher member, which is detachably connect with the closure seat, presses a tip head of a hollow needle as well as an O-ring thereon to slide towards a needle hub to compress a compression spring to store a resilient force.

Abstract: A surgical handpiece having two coaxial tubes or channels mounted within a body. The first tube is used for aspiration and is smaller in diameter than the second tube so as to great an annular passage between the first and second tube. The annular passage communicates with a pumping chamber formed between two electrodes. The pumping chamber works by boiling a small volume of the surgical fluid. As the fluid boils, it expands rapidly, thereby propelling the liquid downstream of the pumping chamber out of the annular passage. The electrodes are insulated from each other.

Abstract: A catheter garment for receiving and retaining an indwelling catheter near the exit site on the body. The garment comprises a flexible band member with a middle portion, upper and lower portions defining an inner surface and an outer surface, and end portions with adjustable fastening means e.g. hook and loop means. An elongated pouch for receiving and retaining the external tubing portion is affixed to the inner surface of the garment and places the external tubing portion in close proximity to the patient's body when the garment is being worn. The elongated pouch is made of a rectangular piece of material that is folded over and its longitudinal free edges are sewn together. The pouch is then sewn along its sewn longitudinal edges onto the inner surface of the flexible band member. The elongated pouch has opened ends along opposite sides of the pouch. One opened end is diagonally formed i.e.

Abstract: An ejection device 1 for the high-pressure ejection of a liquid or a liquid containing solid particles, comprising a pressure chamber 13 to accommodate the liquid therein, which opens into an ejection opening 11 and is delimited by a working piston 5. The working piston 5 is, upon application of an elastic impact on its end facing away from the pressure chamber 13, capable of transmitting a compression wave which may displace the pressure chamber-facing end of the working piston 5 by a predetermined displacement stroke into the pressure chamber 13 so that the volume thereof is reduced. The reduction in volume of the pressure chamber 13 is signicantly smaller than the volume of the pressure chamber 13.

Abstract: The invention concerns a needle arrangement for an injection device (16). It has a hollow needle carrier (10) on which a hollow needle (12) is mounted and which is configured for mounting on the injection device (16). The arrangement has a cap (32) which is displaceable on the hollow needle carrier (10) approximately parallel to the longitudinal extension of the hollow needle (12), is equipped at its proximal end segment with a passthrough opening (42) for the hollow needle (12), and in its proximal end position substantially conceals the hollow needle (12). A compression spring (26) is arranged between the hollow needle carrier (10) and cap (32) in order to displace the cap (32) into its proximal end position. Also provided is a covering cap (66) which surrounds the displaceable cap (32), the hollow needle (12), and the hollow needle carrier (10), and is sealed on its open side by a sealing member (71) that is removable by the user. A needle arrangement of this kind can easily be replaced after an injection.

Abstract: A multi-diameter, multi-purpose cannula connector for connection to vessels of different sizes and suitable for use in coronary artery bypass graft surgery comprising small flexible cannula with several graduated diameter flanges located adjacent the proximal end is disclosed.

Abstract: A needle assembly for a medication delivery pen or hypodermic syringe having a usable length of 5 mm (0.197″) that delivers a dose of medication to a proper location in the tissue “strata” or subcontinuous layer without the need for the user or patient to “pinch-up” the skin layer during the injection.