Abstract: Implant passageway for connection of body cavities or body vessels to a device, container or the like externally of the body. It comprises an element (11) which consists of a biocompatible material or has a biocompatible outside layer. This element forms a socket (13) with a through passage (14) and on the outside of the curved surface thereof inwardly of an end portion (15) having a smooth outside surface, forms radial flanges (16) mutually spaced axially and defining between radial surfaces thereof peripheral grooves for growth of surrounding tissue thereinto.

Abstract: An intravascular catheter comprises an elongated catheter body having a flexible plastic inner wall, a braided reinforcing mesh surrounding the inner wall and a flexible plastic outer wall surrounding the reinforcing mesh. The braided reinforcing mesh comprises helical members having a high modulus of elasticity and longitudinal warp members having a lower modulus of elasticity.

Abstract: There is disclosed an autotransfusion system which essentially is contained in a unitary housing section which enables a practitioner to utilize the system in a rapid and efficient manner. The housing section has integrally associated therewith a blood reservoir, which is a major component of an autotransfusion system. The housing has secured thereto a set of instructions which are adapted to be mounted on the arm of an IV pole and which, when positioned on the arm of the IV pole, specifies vertical distances necessary to perform autotransfusion during a blood collection or blood distribution mode. The housing section, as containing the reservoir, with the package and instruction component, is used as a yardstick to establish specified distances in order to control pressure as afforded by gravity.

Abstract: The present invention relates to a body cavity probe with an everting tube designed to ease insertion of the probe into the body cavity. The device includes the provision of a flexible introduction device mounted on the exterior of the tube and designed to be used to ease insertion of the probe into a body cavity. In a further aspect, the inventive probe may include a barrier designed to isolate the exterior of the body cavity from interior portions thereof. In a further aspect, a flexible accessory channel may be provided on the exterior of the device to permit entry into the body cavity from a different location. One preferred application of the teachings of the present invention is in the field of Urodynamics.

Abstract: A flow rate regulator includes a first cylindrical member, a second cylindrical member and a disc-shaped member to regulate, the flow rate of liquid flowing through a transfusion unit. The liquid is introduced into the second cylindrical member via an inlet port. It flows through the disc-shaped member via a through hole and flows further along a peripherally extending groove in the first cylindrical member. Then, it is discharged from the first cylindrical member via an outlet port after the flow rate is regulated as required. The disc-shaped member is fitted in the second cylindrical member so as not to be rotated relative to the latter, and the sub-assembly is then fitted into the first cylindrical member. The peripherally extending groove is so designed that its cross-sectional area is gradually varied on the bottom portion of the first cylindrical member. The through hole in the disc-shaped member is communicated with the peripherally extending groove.

Abstract: A portable, self contained, infusion monitor is disclosed which can be easily and quickly attached to the drip chamber of an IV set. The monitor detects each drop of liquid falling through the drip chamber and calculates the volumetric flow rate of liquid passing through the IV set. A display for visually recording the flow rate is provided on the monitor along with an adjustable control member for calibrating the monitor for use with any IV set employing tubing having any drop factor.

Abstract: An improved infusion needle device of the type including a liquid delivering passage and an air introducing passage extending in parallel with each other includes a tubular needle, a bottom portion into which the rear part of the tubular needle is immovably fitted, a flange portion made integral with the bottom portion, a cover member airtightly secured to the flange portion and a valve disc received beneath a circular projection on the flange-shaped part of the cover member. As air enters through an air inlet port on the flange portion, the valve disc is raised up so that air is introduced into the interior of the parenteral liquid container via a cutout on the circular projection, a clearance between the bottom portion and the cover member and an annular clearance between the tapered foremost end of the cover member and the tubular needle.

Abstract: An intravenous catheter has an elongate small diameter flexible tubular front portion and a rear base portion which has an interior bore in communication with the interior of the tubular portion for connection to a needle or other fluid injection or withdrawal members. A thin flexible membrane seal formed of resilient stretchable material is secured over the opening at the rear of the catheter base. The elasticity of the membrane seal allows the beveled front end of a needle to be pushed through the membrane and puncture the seal as it passes through and will not tear, but will stretch as the forward motion of the needle continues and conform to the profile of front portion of the needle base and allow it to engage the interior of the catheter base. The needle may be inserted into the catheter in the usual manner and the needle and catheter may be used just as any standard catheter-needle assembly.

Abstract: An apparatus for selectively providing irrigation or evacuation to a patient during surgery which includes valve arrangements to prevent reflux of fluid and the drawing of irrigation fluid from a reservoir in the event the patient line becomes blocked.

Abstract: An apparatus for the easy subcutaneous insertion of a catheter into a patient is described which includes a main body member having a lockflow chamber, a stylet mounted forwardly of the body member a chamber guard releasably mounted rearwardly of the backflow chamber and a catheter with accompanying live adaptor axially mounted on the stylet with its shaft terminating short of the stylet point. The chamber guard includes a threader member which extends forwardly in a loop to abut the live adapter of the catheter whereby downward pressure on the loop directs the threader member fowward to axially displace the catheter and extend the shaft portion of the catheter beyond the stylet point.

Abstract: An aspirator for removing a body liquid from a body cavity comprising a cylindrical receptacle having a top wall comprising a flap valve, and an aspirating tube, one end of said aspirating tube being connected with the upper part of the receptacle and the other end having such a shape that it can be inserted into the body cavity, said receptacle being partly surrounded by a cylindrical cap-shaped member having a top wall including a flap valve, the cap-shaped member having such a shape that an axial displacement of the cap-shaped member relative to the receptacle produces a vacuum in the space between the cap-shaped member and the receptacle.The aspirator is more compact and of a simpler construction than the corresponding prior art aspirators.

Abstract: The present invention provides both a continuous dose and a bolus dose of fluid or beneficial agent to a patient. A source of fluid is in fluid communication with a continuous flow path for providing the patient with a continuous source of the beneficial agent. The source of beneficial agent is also connected to a bolus dose apparatus which provides patient control of a bolus dose of the beneficial agent, up to a preselected maximum.

Abstract: The transplantation of donor tissue into the brain is effected by locking the head relative to a stereotaxic unit; penetrating the brain with a first cannula to a predetermined depth to create a transplant site within the brain while the first cannula is fixed by the stereotaxic unit relative to the brain; then feeding a second cannula, which contains donor tissue at its distal end, through the already fixed first cannula so that the distal end of the second cannula comes to rest at the transplant site; and finally withdrawing the first cannula and the second cannula so as to leave the donor tissue at the transplant site.

Abstract: A closed system for percutaneous irrigation and drainage of cavities containing abscesses, sterile fluid collections or hematomas includes an irrigant reservoir; an irrigation tube connects the reservoir to a first port of a first three-ported connector adapted to fluidically connect two of the three ports at a time. A syringe is connected to the second port of the first connector, and an extension tube connects the third port of the first connector to a first port of a second three-ported connector adapted to fluidically connect two of the three ports at a time. The distal end of a drainage catheter is adapted to be placed in the cavity. The proximal end of the catheter is connected to the second port of the second connector. A drainage tube is connected to the third port of the second connector to a means for collecting fluids draining from the cavity.

Abstract: The container is intended for mixing infusion solutions with ingredients and for administering the mixture. It consists of a bag which forms the mixing space, is made of flexible material and is provided on each of the two narrow sides with a tubular connecting part, the connecting parts being equipped with connectors.

Abstract: A system and method for draining a postoperative wound, the system having a bottle which is coupled in a manner to facilitate fill of the bottle under low pressure from a postoperative wound.

Abstract: A catheter device is described with a safety needle guard that covers and protects the needle after use of the device. The device includes a semi-tubular needle housing containing a flash chamber with a hollow needle extending from the distal end of the flash chamber. A tubular needle guard concentrically fits and slides within the needle housing. The needle guard has a longitudinal slot through which the mounting base of the flash chamber passes as the guard slides within the housing. The top of the semi-tubular housing is open so that a user may access the top of the tubular needle guard with a finger to urge the needle guard to an extended position from the distal end of the housing and in a surrounding position about the needle. As the needle guard attains its fully extended position about the needle, it locks in place in the needle housing.

Abstract: The invention relates to a procedure for the perfusion of body cavities with a fluid led from a dispenser reservoir 3 via a perfusion line 10 and a medical instrument 6. Pump 4 is connected with the perfusion line 10, a pressure sensor 5 is connected between pump 4 and medical instrument 6 to perfusion line 10, and an adjustment and measurement electronic system 12 is connected to pressure sensor 5 and pump 4.To build up, maintain, and measure as precisely as possible a preselected and precisely determined pressure in the body cavity, according to the invention the adjustment and measurement electronic system 12 determines the actual pressure in body cavity 1 by evaluating the pressure P.sub.IST measured by pressure sensor 5, the volume flow V supplied by pump 4, and the conductance G of the perfusion line 9 between pressure sensor 5 and instrument 6 and conductance G of instrument 6, and the pressure P.sub.SOLL in body cavity 1 is maintained constant at preset level P.sub.

Abstract: A connector is described for intravenous systems which fits over an I.V. needle which is inserted into the system such that the I.V. needle is at all times covered to prevent accidental contact with those using the system. The connector is a sleeve which fits over the I.V. needle and completely covers it. One end of the catheter tube or adaptor fitted to the tube is inserted into the sleeve so that the I.V. needle becomes engaged with the tube.