1521 results about "Infusion set" patented technology

A low-profile inserter for an angled infusion set comprises an inserter housing having a bottom wall, a retainer slidably connected to the inserter housing for movement between retracted and extended positions in a direction substantially parallel with the bottom wall, and a base member connected to the inserter housing. The retainer is adapted to releasably receive a cannula assembly, including a cannula connected to a cannula housing. The base member has a lower surface that is adapted to contact a skin outer surface. The lower surface and bottom wall together form an acute angle. With this arrangement, the cannula can be inserted subcutaneously at the acute angle with respect to the skin outer surface.

A system and method for a patch-like, self-contained substance infusion device which provides one or more substantially hidden patient needles which can be placed in fluid communication with a fluid reservoir subassembly that includes a rigid bladder portion used in conjunction with a non-distensible bladder film, such as a metallized film. Simple removal of an interlock allows a disk, or Belleville spring assembly to apply an essentially even and constant pressure to the contents of the fluid reservoir assembly, and allows the device to then be attached to a skin surface via an adhesive contact surface. A push button activation assembly is provided which can then be used to release and seat one or more spring-loaded patient needles into the skin surface, and establish a fluid communication path between the patient needles and the pressurized fluid reservoir contents thereby delivering an infusion into the skin.

A medical device for delivery of a fluid to a patient from a line terminating in a tubing needle. The medical device includes a cannula assembly for coupling the fluid into a cannula that is inserted into the patient. The cannula assembly has a first locking element disposed in a fixed position with respect to the cannula. Coupling the line to the cannula assembly is an infusion flap. The infusion flap includes a second locking element for engaging the first locking element of the cannula assembly and a lift tab for disconnecting the infusion flap from the cannula assembly. Coupling of the first and second locking elements requires initial mating of the infusion flap and cannula assembly followed by locking through rotation of the infusion flap with respect to the cannula assembly.

A wearable infusion pump assembly. The wearable infusion pump assembly includes a reservoir for receiving an infusible fluid and a fluid delivery system configured to deliver the infusible fluid from the reservoir to an external infusion set. The fluid delivery system includes a controller, a pump assembly for extracting a quantity of infusible fluid from the reservoir and providing the quantity of infusible fluid to the external infusion set, the pump assembly comprising a pump plunger, the pump plunger having distance of travel, the distance of travel having a starting position and an ending position, at least one optical sensor assembly for sensing the starting position and ending position of the pump plunger distance of travel and sending sensor output to the controller, and a first valve assembly configured to selectively isolate the pump assembly from the reservoir, wherein the controller receives the sensor output and determines the total displacement of the pump plunger.

A packaging system and method which provides at least one tray or nest, having a number of wells and ribs to position and secure a patch-like, self-contained substance infusion device having one or more patient needles which can be placed in fluid communication with a fluid reservoir assembly within the device and upon which a disk, or Belleville spring assembly applies an essentially even and constant pressure to the contents. The device further provides for the release of one or more spring-loaded patient needles a patient's skin surface to establish a fluid communication path between the patient needles and the pressurized fluid reservoir contents.

The invention relates to a device for insertion of a cannula of e.g. and infusion set for intermittent or continuous administration of a therapeutical 5 substance, such as e.g. insulin. The insertion device assures that before, during and after insertion the insertion needle is not visible to the patient. The insertion device according to the invention comprises a first insertion part (1) and a second insertion part (2), a cannula holding part (5) provided with a 10 cannula (4), and an injection needle (6) where—the second insertion part (2) is connected to the injection needle (6) and the injection needle (6) is releasably combined with the cannula (4) of the cannula holding part (5), —the first insertion part (1) covers the injection needle (6) in a non-activated 15 position and in an activated position the injection needle (6) projects beyond the first insertion part (1), —at least a part of the second insertion part (2) and the first insertion part (1) can be moved in relation to each other between at least one activated position and at least one non-activated position, 20 wherein the second insertion part (2) exceeds the distal end of the first insertion part (1) when the device is in an activated position.

An insertion device, generally used with an infusion set, including a needle being adapted for puncturing at one end and including at the opposite end a hub. The hub includes a handle part and a guard part that are capable of securing the needle through the use of locks. Locking structures are used to secure the insertion device in a position where the needle is covered in a locked position, avoiding unintended contact with the needle.

The invention relates to an inserter for an infusion set for intermittent or continuous administration of a therapeutical substance, such as e.g. insulin. The inserter comprises a needle hub comprising an insertion needle and two spring units assuring automatic insertion and automatic retraction of the insertion needle.

The inserter comprises a housing (1), a carrier body (2) carrying an infusion part (8), a needle hub (3), a first moving unit (4) bringing the carrier body (2) to a forward position and a second moving unit (5) bringing the carrier body (2) to a retracted position. The inserter is characterized in that it has means for activation which should be activated at least once in order to bring the carrier body (2) from a retracted to a forward position, and back from the forward to the retracted position.

A portal access device that is adapted to provide long term access to a port implanted in a patient has two major components, an infuser assembly and a safety needle insertion device. The infuser assembly has an infuser housing that can be configured into a specific shape, for example a dome. A blunt cannula is attached to and extends downwardly from the underside of the infuser housing. Also connected to the infuser housing, preferably at a side thereof, is a tubing or catheter. The safety needle inserter assembly has a base having a proximal portion that is configured to form fit over the infuser housing. At the distal portion of the base uprights are provided so that a second end of an arm, to which first end a needle or a sharp cannula is connected, may be movably and hingedly connected to the base. The sharp cannula extends from the underside of the proximal end of the arm and passes through the base by way of a bore formed at the proximal portion of the base. The bore is defined between an opening at the underside of the base and an opening at the upper surface of the base. Locking mechanisms are provided at the base uprights and the distal end of the arm so that when the arm is moved away from the base, and as the distal end of the arm pivots about the uprights, the respective locking mechanisms provided at the arm and the base would coact to lock the arm in place, to thereby maintain the tip of the needle within the bore formed in the base. To use, the safety needle inserter is placed over the infuser assembly, with the sharp cannula extending through the infuser housing and axially mating with the blunt cannula of the infuser assembly, but with the tip of the sharp cannula protruding beyond the tip of the blunt cannula. The combined needle inserter/infuser assembly is pressed down onto the skin surface of the patient so that the combination sharp/blunt cannulas penetrate the patient and puncture the self-sealing septum of a portal reservoir implanted in the patient. Once the safety needle inserter is removed from the infuser assembly, with the infuser housing septum being self-sealing, a closed fluid communication path is established between the portal reservoir and a fluid store that may be connected to the catheter of the infuser assembly. Long term access of the implanted portal reservoir is thereby achieved.

A wearable infusion pump assembly includes a reservoir for receiving an infusible fluid, and an external infusion set configured to deliver the infusible fluid to a user. A fluid delivery system is configured to deliver the infusible fluid from the reservoir to the external infusion set. The fluid delivery system includes a volume sensor assembly, and a pump assembly for extracting a quantity of infusible fluid from the reservoir and providing the quantity of infusible fluid to the volume sensor assembly. The volume sensor assembly is configured to determine the volume of at least a portion of the quantity of fluid. The fluid delivery system further includes a first valve assembly configured to selectively isolate the pump assembly from the reservoir, and a second valve assembly configured to selectively isolate the volume sensor assembly from the external infusion set.

A fluid collection or infusion set is provided. The set includes flexible tubing with a fitting attached to a proximal end and a needle assembly attached to the distal end. The needle assembly includes a needle hub and a needle cannula secured in the hub. An actuator arm extends proximally and outwardly from the needle hub and has an actuator button at its free end. The needle assembly is disposed in a barrel and can move from a distal position where the needle cannula is exposed to a proximal position where the needle cannula is shielded. A spring is disposed in the barrel for propelling the needle assembly to the proximal position. The barrel includes an actuating aperture that receives the actuator button for locking the spring in a compressed condition. Depression of the actuator button enables the spring to propel the needle assembly into its proximal shielded position.

An infusion set having an infusion part for insertion into a patient and a connector for connecting the infusion part with a medical device through a tube is provided. The connector is axially displaceable relative to the infusion part. The infusion part includes an adhesive support, a base part with a first set of guiding means and at least two retention devices for locking the connector to the infusion part, a cannula extending from the base part and being in fluid communication with a cavity. The cavity is further adapted to receive a second cannula extending from the connector where the second cannula is in fluid communication with the tube. The infusion set further includes a second set of guiding means that are adapted to fit with the first set of guiding means and at least two arms. The retention devices extend from an upper surface of a main surface of the base part and the arms include means corresponding to the retention members.

A portable therapeutic apparatus and a method for controlling the apparatus are provided. In one aspect the apparatus and the method can be implemented using a patch unit (100, 200) removably attachable to a cradle unit (20), said cradle unit removably attachable to the body of the patient; a position detector (1000) comprising a patch portion (900) and a cradle portion (800), said patch portion coupled to the patch unit, said cradle portion coupled to the cradle unit; a processor adapted for receiving a position indication signal from the at least one position detector, said position indication signal corresponding to a physical proximity of the patch portion to the cradle portion, —and, wherein the portable therapeutic apparatus is adapted for at least one therapeutic function selected from the group consisting of delivering a therapeutic fluid into the body of the patient and sensing a bodily analyte.

An infusion set assembly comprising a cannula housing having a base surface and a septum housing adapted to be pivotally attached to the cannula housing for movement between a position where an axis thereof is substantially perpendicular to the base surface and a position where the axis is substantially parallel to the base surface. The infusion set assembly further comprises an insertion needle assembly including an insertion needle and a cannula supported by the needle assembly with a tip of the insertion needle extending from a distal end of the cannula. An insertion guide housing is configured to support the insertion needle assembly with the needle substantially perpendicular to the base surface and adapted for movement between a position where the needle tip and cannula distal end are spaced from the base surface and a position where the needle tip and cannula distal end extend beyond the base surface.

A wearable infusion pump assembly includes a reservoir for receiving an infusible fluid, and an external infusion set configured to deliver the infusible fluid to a user. A fluid delivery system is configured to deliver the infusible fluid from the reservoir to the external infusion set. The fluid delivery system includes a volume sensor assembly, and a pump assembly for extracting a quantity of infusible fluid from the reservoir and providing the quantity of infusible fluid to the volume sensor assembly. The volume sensor assembly is configured to determine the volume of at least a portion of the quantity of fluid. The fluid delivery system further includes at least one optical sensor assembly configured to sense the movement of the pump assembly, a first valve assembly configured to selectively isolate the pump assembly from the reservoir, and a second valve assembly configured to selectively isolate the volume sensor assembly from the external infusion set.

Presently disclosed is a hydraulic pump device and its use thereof, especially in a fluid delivery system. In one embodiment, the fluid delivery system is an inexpensive, single-use device for slow dosing medicament applications. The fluid delivery system may employ a spring-compressed bellows crank or other combination of simple mechanisms operating according to the well-known peristaltic principle to force a volume of ultrapure bio-inert hydraulic fluid through an aperture, thereby expanding one chamber of a two chamber hydraulic cylinder. The second, fluid storage chamber, containing the medicament, is emptied through a conventional orifice in response to the expansion of the pump chamber. The medicament may thence flow through any suitable infusion set into a patient removeably attached thereto.