85 results about "Infusion Site" patented technology

Provided is an extended use self-contained, wearable medical device. The device is preferably configured with an infusion deployment mechanism for variably inserting and retracting an infusion needle to different depths, or completely retracting the infusion needle from the infusion site and then re-inserting the infusion needle after a predetermined period of time, throughout an infusion cycle for extending the viability of the infusion site. Another embodiment comprises dual needle deployment mechanisms which may also variably insert and retract the infusion needles. A flow sensor is preferably provided for detecting the stoppage of flow through the infusion cannula and signaling the needle deployment mechanism to attempt infusion at a different depth or to deploy a second infusion needle. A re-fillable reservoir assembly is preferably provided for supplying a drug over the extended use of the device. Another embodiment comprises a partially reusable and partially disposable medical device implementing the above features.

Some embodiments of this disclosure relates to systems and methods for imaging a patient's vasculature. For example, near infrared (NIR) light can be used to illuminate a target area and light that is reflected or scattered from the target area can be used for generate an image of the target area. In some embodiments, the system can be configured such that the image shows the presence, absence, or extent of infiltration or extravasation in the target area. The system can be configured to document that presence, absence, or extend of infiltration or extravasation at an infusion site. In some embodiments, an imaging system can be mounted onto a patient so that the imaging system can monitor an infusion site, and the imaging system can be configured to automatically detect the presence of infiltration or extravasation.

Apparatuses and methods for pumping fluid are disclosed. An exemplary apparatus is a miniature pump that includes a shape memory wire that obtains a plastic condition below a transformation temperature and has a memorized shape such that the shape memory wire produces a work stroke by returning to the memorize shape at least at the transformation temperature. A spring biased against the shape memory wire is deflected by the work stroke to deform the shape memory wire from the memorized shape below the transformation temperature. A fluid pump is coupled to the shape memory wire and driven by the biased spring and shape memory wire to produce a fluid flow. The miniature pump can be incorporated into a self-contained infusion device in the form of a compact self-adhesive patch including a fluid reservoir, control electronics and power supply that is place directly at the infusion site of a user.

A system for controlling pressurized infusion and temperature of intravenous fluids according to the present invention includes a housing, a heating assembly and a flexible cover. The heating assembly is recessed within the housing and includes a generally U-shaped configuration to surround and uniformly heat fluid within a fluid container placed thereon. The cover wraps around a portion of the fluid container to secure the fluid container against the heating assembly. The cover includes a pressurization member to apply a desired pressure to the fluid container to achieve a desired flow rate of intravenous fluid from the fluid container to an infusion site on a patient. The system further includes a controller to control the heating assembly and pressure within the pressurization member in accordance with desired temperature and pressure information entered into the controller for system operation.

An insulin infusion device (1A) is disclosed. The device includes a body (3A), cannula (70) housed in the body (1A), a cannula insertion device (10, 20, 23) and a cannula retraction device (20, 23, 30). When the cannula insertion device is activated, the cannula (70) extends at least partly out of the body (1A) and into an infusion site and when the cannula retraction device is activated after the cannula insertion device has been activated, the cannula (70) retracts into the body (1A).

A tamper resistant guard for protectively covering a patient's infusion site while allowing visual inspection of the site without manipulation of the guard. A resilient base panel includes an open portion therein that is positioned over the infusion site, allowing visual inspection of the dermal tissue proximal of the site for indications of infiltration and extravasation of medications and degeneration of dermal tissues proximal to the infusion site. A resilient flap having a flexible window therein is hingedly secured to the base panel with the window positioned in register with the panel open portion, to facilitate visual inspection of the infusion site without flap manipulation. The flexible window is positioned in covering relationship over the infusion site and includes means for fastening a flap attaching side in overlapping orientation to secure infusion tubing between the flap and base panel, thereby preventing patient tampering with the tubing and the infusion site.

A multipurpose site guard for use at all peripheral and central venipuncture infusion sites, sensitive areas, and for pediatric and adult patients. The guard is a hollow plastic member with a base and a sidewall curved upwardly and inwardly to form a cover which is form fitted to the infusion site under finger pressure and which can be taped in place. Improvements to this invention include holding the guard in place with a fabric connector having closure means and cushioning the guard's base with a soft material.

The present invention provides devices, small interfering RNA, and methods for treating a neurodegenerative disorder comprising the steps of surgically implanting a catheter so that a discharge portion of the catheter lies adjacent to a predetermined infusion site in a brain, and discharging through the discharge portion of the catheter a predetermined dosage of at least one substance capable of inhibiting production of at least one neurodegenerative protein. The present invention also provides valuable small interfering RNA vectors, and methods for treating neurodegenerative disorders such as Alzheimer's disease, Parkinson's disease, Huntington's disease, Spinocerebellar Ataxia Type 1, Type 2, Type 3, and/or dentatorubral-pallidoluysian atrophy.

Dressing for a puncture site or infusion site, comprising a first adhesive part (A) and a second part (B) provided with a compress (6), the first part (A) being adhesive on one of its faces, this dressing comprising a third adhesive part (C) on one of its faces that is capable of covering the first part (A), the second part (B) then being placed between the first part (A) and the third part (C), the first part (A) being intended to be attached to the skin at the puncture site or infusion site.

Methods and devices are provided for reducing a diabetic patient's foreign body immune response, including infusion site-loss and/or occlusion. Such foreign body responses are associated with the treatment of the diabetic patient where the treatment requires subcutaneous implantation of a foreign body, such as a cannula or catheter. In certain embodiments of the invention, a response-inhibiting agent is administered to a patient at the site of cannula/catheter insertion, thereby facilitating delivery of insulin to the diabetic patient and mitigating site-loss and/or occlusion over a period of time.

Exemplary embodiments provide a multi-medicament infusion system (10) for preventing the mischanneling of medicaments. The system may include an infusion pump (12), medicament reservoirs (16A,16B), a multi-channel lumen (18), and an infusion set (20). The medicament reservoirs may be sized and shaped differently such that the medicament reservoirs can only be inserted into the infusion pump in a unique configuration. The multi-channel lumen may include connectors that mate to corresponding connectors on the infusion pump and the infusion set only in a unique configuration. Because the various parts of the multi-infusion system may only be connected in the unique configuration, the expected medicaments may be administered appropriately and channeled to the correct infusion sites.

The invention relates to a blood line (108) comprising an infusion site (145) intended to inject into the line a solution, comprising: —a first main channel (200) having a first passage section, —a second main channel (220) having a second passage section, —means for the formation (210) of a turbulence area located downstream from the first main channel, located upstream from the second main channel, these formation means comprising a first fluid passage means (224) defining a reduction (225) in the passage section and whose smallest passage section is smaller than the first passage section and smaller than the second fluid passage section, —a secondary channel (230) comprising an inlet (231) for letting in the solution and an outlet (232) in fluid communication with the first main channel or the means for the formation of a turbulence area or the second main channel.

Disclosed herein are apparatuses and methods for improved use of infusion sites for infusion pumps. Apparatuses and methods for delivery of medicaments such as insulin disclosed herein can increase the effectiveness of therapy by more accurately determining when an infusion site is no longer absorbing insulin at an acceptable rate as well as determining the effectiveness of different infusion sites on the body with respect to each other and over time.

An infusion set or patch pump is provided for delivering a pharmaceutical agent, such as insulin, to a patient. The infusion set or patch pump has a recessed portion in the bottom face containing a hydrogel and a reactant capable of producing a color change upon contact with the pharmaceutical agent. The reactant includes a mixture of potassium persulfate and 4-aminoantipyrine and optionally horseradish peroxidase, and produces a rapid visually detectable color change when contacted with phenol and/or m-cresol contained in insulin as stabilizing agents.

A device (4) for inserting an infusion cannula (12) or a sensor into a body of a patient comprises an insertion needle (41) adapted to be removably arranged in the infusion cannula (12) or sensor, a handle structure (45) connected (451) to the insertion needle, and a needle cover (42). The needle cover (42) is pivotably mounted (424) on the handle structure (45), and is rotatably movable (51) between a first position, where a front part (413) of the insertion needle (413) is located in the needle cover (42), and a second position, where the front part of the insertion needle is exposed. An infusion site interface (1) comprises an interface body (16) mounted on a pad (15) adapted for being adhesively attached to a body of a patient; a soft infusion cannula (12) adapted for being inserted into the body of the patient, wherein the cannula (12) is connected to the interface body (16); a cavity (17) arranged within the interface body (16), fluidly connected to the cannula (12); and a single septum (13) that sealingly closes the cavity (17). The single septum (13) is adapted to be penetrable by an insertion needle (11) arranged in the infusion canula (12), and is adapted to be penetrable by a hollow needle (21) of an infusion tubing connector (21) coupled to the infusion site interface (1). The hollow needle is arranged in an angle ? to the infusion cannula.; The infusion site interface (1) comprises guiding means (14) that are adapted to guide said hollow needle (22) of the connector (21) during coupling parallel to a plane defined by the pad (15).

The present disclosure is directed towards a dosing unit (100) for an ambulatory infusion system, including: a metering pump unit (110), the pump unit including a dosing cylinder (112) and a piston (111), the piston (111) being arranged in sealing sliding engagement inside the dosing cylinder (112); a valve unit (120), the valve unit (120) having a filling port (127b), the filling port being designed for fluidic coupling with a liquid drug reservoir (300), a draining port (127c), the draining port (127c) being designed for fluidic coupling with an infusion site interface (890), and a shut-off body (126), the shut-off body (126) being movable between a filling position where it fluidic couples the filling port (127b) with the dosing cylinder (112) and an alternative draining position where it fluidic couples the dosing cylinder (112) with the draining port (127c); a valve driver coupler (125), the valve driver coupler (125) being coupled to or integral with the shut-off body and being the output element of a step switching mechanism. The disclosure is further directed towards a drive unit that may be used in combination with a disclosed dosing unit, an ambulatory infusion system and a method for coupling a dosing unit and a drive unit.