摘要:
A lancet housing assembly includes multiple lancets for use in a portable handheld medical diagnostic device for sampling bodily fluids from a skin site of a patient. The lancet housing assembly includes a housing structure comprising multiple lancet compartments. At least one of the lancet compartments includes an outer facing side and an inner facing side. An opening is located at the outer facing side that is arranged and configured to align with a lancet port of the medical diagnostic device. A lancet structure is located in the at least one lancet compartment and comprises a skin penetrating end and a blood transport portion adjacent the skin penetrating end. The lancet structure has (i) an initial configuration where the lancet structure is supported to align the skin penetrating end with the opening to allow the skin penetrating end to extend through the opening and (ii) a retracted configuration where the skin penetrating end moves to a position within the lancet compartment offset from the opening to prevent the lancet structure from extending through the opening.
摘要:
A method of driving a lancet structure in a portable handheld medical diagnostic device is provided. The method includes connecting a spring-driven motor to the lancet structure within a housing structure of the portable handheld medical diagnostic device. The spring-driven motor is wound to a cocked, triggerable configuration. The spring-driven motor is triggered such that, when triggered, the spring-driven motor (i) displaces a skin penetrating end of the lancet structure outwardly from the housing structure through a lancet port and (ii) retracts the skin penetrating end of the lancet structure back into the housing structure.
摘要:
A device is constructed so as to define a capillary channel that draws a body fluid form a proximal portion of the capillary channel toward a distal portion. A counterbore defining a “ledge” not substantially normal to the center line of channel causes the meniscus of body fluid to be “biased” into a non-radially-symmetric shape. In one example, the bias draws the body fluid toward a testing element that is set into a groove in the main body of the device. In another example, hydrophilic and/or hydrophobic regions are created on or in device to produce the biasing effect. In certain configurations, device requires less blood to be drawn into the capillary channel for a successful test than if the biasing effect were not created.
摘要:
A self-powered lancing drive system and lancing technique uses permanent magnets to initially store the potential energy that is converted to kinetic energy for extending a lancet during lancing. This self-powered lancing drive system is a pure permanent magnet drive that is highly reliable under numerous operating conditions. Permanent magnets can produce stronger magnetic fields at smaller sizes as compared to electromagnets. In one form, the lancing system has a drive permanent magnet that is kept fixed or stationary while the lancet magnet travels along the firing path. With the drive magnet being stationary, the lancet experiences fewer fluctuations in the magnetic field. The lancet vibrates less and is driven straighter into the tissue. In another form, a retraction magnet is positioned at the end of the firing path of the lancet, near the tissue, to enhance retraction of the lancet. In another form, a mechanical structure keeps the magnets in close proximity so that the strength of the magnetic propulsion force is maintained. The mechanical structure in one example is a crank mechanism that confines magnet movement to a circular path. The crank mechanism provides a smooth lancing profile as well as facilitates adjustments to the lancing profile.
摘要:
A bodily fluid sampling device is operable to lance with a precise depth and express fluid from both fingertip and alternate sites. In one form, the device is operable to adjust the penetration depth of the lancet into the skin. The bodily fluid sampling device includes a lancet adapted to form an incision in skin. A skin contacting member has an orifice through which the lancet extends when lancing the skin. The orifice has a first opening size that is sized to flatten the skin around the lancet during lancing. The orifice has a second opening size that is larger than the first opening size after the incision is formed to express fluid from the incision.
摘要:
An integrated lancing test strip includes a pair of blade members that each have a lancing tip that are configured to lance skin. A pair of spacer members connect the blade members together such that the blade members define an internal capillary. A test strip is positioned along the internal capillary, and the test strip is configured to test analyte levels in the bodily fluid. During use, the lancing tips form one or more incisions in the skin. The fluid from the incisions is drawn via capillary action through the internal capillary and onto the test strip.
摘要:
An integrated lancing test strip includes a test strip and a lancet packet coupled to the test strip. The lancet packet includes a sterility sheet enclosing a lancet to maintain the sterility of the lancet and prevent cross-contamination between the test strip and the lancet. The sterility sheet allows the lancet to be sterilized separately from the test strip. In one form, a firing mechanism has a blade that punctures and slits the sterility sheet during the firing cycle to reduce the chance of cross contamination between the lancet and the test strip prior to use. This allows an operator to load and subsequently remove an unused integrated lancing test strip without compromising the sterility of the lancet. The lancet includes an engagement opening in which the blade of the firing mechanism engages the lancet. The engagement opening is configured to reduce the chance of the blade becoming dull.
摘要:
A test magazine with two film strips (12, 14), which are joined to one another in a sandwich-like manner, can be wound up, and between which holding cells (16) for test elements are kept free. The test magazine also comprises a multitude of test elements (18, 20) each having a puncturing unit (18) for inserting into body tissue and a test unit (20) for being subjected to body fluid. To this end, the puncturing units (18) and test units (20) are placed in separate holding cells (16) whereby separating them from one another.
摘要:
A supply of lancets for a multi-use lancing device are carried by a tape and sequentially brought from a storage position to an activating position by advancing the tape around a bend. The lancets are non-circular in cross-section along their longitudinal lengths, and in their activating position they extend from the tape such that their sharp tips are available for lancing tissue. The carrying tape can be arranged in reel-to-reel format in a housing having a lancing opening. The lancets can be integral with the tape and activated to move the lancet through the lancing opening by moving the tape along its tape path or by translating a dedicated service loop of the tape. The lancets can also be independent from the tape and activated through the lancing opening by a separate lancing actuator. A test media can be included on the carrying tape and the housing can contain a sensor to yield an integrated lancing and testing device.
摘要:
An integrated lancing test strip includes a test strip and a lancet packet coupled to the test strip. The lancet packet includes a sterility sheet enclosing a lancet to maintain the sterility of the lancet and prevent cross-contamination between the test strip and the lancet. The sterility sheet allows the lancet to be sterilized separately from the test strip. The sterility sheet gives the integrated strip a low profile, which is attractive for packaging multiple integrated strips in cassettes, drums, magazines or the like. In one form, the integrated strip is loaded in a meter that includes an adjustment mechanism that adjusts the position of the test strip relative to the skin being sampled. This allows the user to adjust the position of the test strip so as to not apply excessive pressure against skin, which could hamper bleeding from the incision in the skin.