Abstract:
A high accuracy syringe pump that includes a pump housing and a drive assembly. The drive assembly includes a plunger driver head, a drive arm, a lead screw, a motor, and a linear potentiometer. The plunger driver head selectively urges against a syringe that defines a first central longitudinal axis. The drive arm includes an elongate plunger tube having a generally parallel longitudinal axis. The drive arm is coupled to the plunger driver head and movement of the elongate plunger tube corresponds with movement of the plunger of the syringe along the first central longitudinal axis. The linear potentiometer includes a double coil wound non- conductive rod generally in alignment with the second longitudinal axis and around which the elongate plunger tube operably slides when moved with the drive arm. The linear potentiometer generates a frequency output proportional to an insertion distance of the rod inside the elongate plunger tube.
Abstract:
A needle assembly with a self-contained antiseptic swab for treatment of a biological site of a patient. The self-contained antiseptic swab includes a sleeve, an absorbent material containing an antiseptic agent, and operably carried by an exterior surface of the sleeve, and the cap is removably coupled to the sleeve, such that when coupled to the sleeve an interior surface of the cap and the exterior surface of the sleeve form a substantially sealed chamber encasing the absorbent material, preserving the integrity of the antiseptic agent.
Abstract:
An intravenous catheter assembly. The intravenous catheter assembly including a catheter and a catheter hub having a catheter hub body, a septum, and a septum retainer, the catheter hub body having an internal wall defining a transition step, wherein the septum is positioned such that a first end of the septum abuts up against the transition step, the septum retainer at least partially insertable within the catheter hub body and configured to secure the septum in position.
Abstract:
A safety catheter insertion assembly including a catheter hub coupling assembly. The safety catheter insertion assembly having a needle hub slideably coupled to a needle housing such that the needle hub is moveable between a first position wherein an insertion needle extends from the needle housing, and a second position wherein the sharp distal tip is housed within the needle housing, the catheter hub coupling assembly coupling the catheter hub to the needle housing in the first position and releasing the catheter hub from the needle housing in the second position.
Abstract:
An overload protection method and apparatus for a medicament syringe pump force sensor. A dome switch is employed with force sensor components of a medicament pump. The dome switch collapses at overload pressures, isolating the force sensor from pump driving forces that exceed the force sensor limit. An alarm signal can be triggered by the overload, and initiate pump shut down.
Abstract:
A pole clamp for mounting a medical device to a pole. The pole clamp includes a main body, including a first portion including a threaded hole therethrough, a second portion that is disposed at an angle relative to the first portion, and a pivot post disposed in the second portion. A threaded adjustment rod is rotatably disposed in and through the threaded hole of the first portion. The threaded adjustment rod has a knob at a first end thereof and a push plate at a second end thereof. A rotatable stop block has a plurality of faces and is rotatably coupled to the pivot post. The rotatable stop block is rotatable to a plurality of positions to align a selected one of the plurality of faces opposite the push plate.
Abstract:
A rotatable electrical connector can include a base housing having a bottom surface, a top housing that is rotatably engaged with the base housing, and a plurality of contact pads that are arranged radially within the base housing. The contact pads each have a top surface and a bottom surface. A plurality of signal pins are individually associated with the plurality of contact pads; and each of the signal pins correspondingly project outwardly from the bottom surface of an associated contact pad and outwardly from the bottom surface of the base housing. A center ground pad, having a top surface and a bottom surface, is provided within the base housing. A ground pin projects outwardly from the bottom surface of the center ground pad and outwardly from the bottom surface of the base housing. A plurality of conductors is arranged radially within the top housing. The conductors individually correspond to the plurality of contact pads within the base housing. Each of the conductors has (i) a bottom surface that is capable of being in rotatable contact with the top surface of each of the contact pads and (ii) a top surface that projects outwardly from the top housing. A ground conductor is centrally located within the top housing and is surrounded by the plurality of conductors. The ground conductor has a bottom surface that is in rotatable contact with the top surface of the center ground pad in the base housing, and a top surface that projects outwardly from the top housing.
Abstract:
An implantable portal includes a septum that has embedded therein a plurality of formations that together form an indicia adapted to identify at least one characteristic of the portal. The formations are configured from impressions formed on different layers of the septum spatially separated along the vertical axis of the septum. The impressions are filled with a radiopaque material. The superposed formations do not overlap when viewed from atop the septum. When viewed under radiographic imaging from the top of the septum, a 3-D identification indicia is presented to the viewer. The 3-D indicia may be used as a 3-D marker to focus the location of the septum where a needle to access the fluid reservoir of the portal may be inserted.
Abstract:
A drug delivery system has a fluid store that has a first tubing having an outlet fitted with a connector of a given configuration that prevents the connector from being coupled to a conventional counterpart connector. The system further has a tube retaining device that has a catheter extending out of one of its ends and an inlet connector at its other end that has a configuration complementary to the configuration of the outlet connector of the first tubing, so that the first tubing may be matingly connected to the tube retaining device to establish a through fluid path from the first tubing to the catheter. A one-way valve may be provided to the tubing to prevent fluid from flowing backwards into the tubing. A fitting that enables the inventive system to be used with conventional IV stores and syringes is also disclosed.
Abstract:
A clam shell shaped adapter for retaining a catheter to establish a fluid path between the catheter and a fluid device or line has two shells integrally connected by a living hinge. A first shell has a luer end and a catheter end wherein a catheter is insertable through its aperture. A flexible tube at the inner surface of the first shell connects the luer end to the catheter end. The catheter is inserted through the catheter end to extend along the flexible tubing. A retainer structure is provided at the inner surface of the second shell so that when the first and second shells close upon each other, the retainer structure presses against the flexible tubing to fixedly retain the catheter in a fluidly sealing manner. Respective latch mechanisms provided at the shells lockingly couple the two shells to each other. The latch mechanisms are located remotely from the outer surfaces and peripheries of the shells to prevent inadvertent uncoupling of the shells. The shells may be uncoupled by inserting a pointed object through a notch to the interior of the device to disengage the latch mechanisms.