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Publication Number
US-8162968-B2
Publication Date
2012-04-24
Expiration Date
Abstract
A lancing device is used with a lancet for lancing body tissue to result in a wound for bleeding. The lancing device has a cantilevered priming arm having a first arm portion that is generally parallel to an internal channel of the device and a second arm portion that is generally perpendicular to the internal channel. The second arm portion is connected to a lancet carrier and movement of the first arm portion toward the internal channel draws the lancet carrier to a primed position and stores energy in a lancet driver.
Core Innovation
The invention relates to a lancing device for use with a lancet to lance body tissue to result in a wound for bleeding. The device includes a housing with an internal channel extending within the housing from a first lancing end toward a second end, a lancet carrier translationally mounted within the internal channel to carry a lancet along a strike path from a primed position toward the second end and to a lanced position at the first lancing end, and a lancet driver that stores energy and then drives the lancet carrier along the strike path.
The device introduces a cantilevered priming arm having a first arm portion generally parallel to the internal channel and a second arm portion generally perpendicular to the internal channel, where the second arm portion is connected to the lancet carrier. Movement of the first arm portion toward the internal channel draws the lancet carrier to a primed position and stores energy in the lancet driver.
In additional embodiments, opposing cantilevered priming arms are disposed on opposing sides of the internal channel, with movement of the first arm portion of either or both arms toward the internal channel drawing the lancet carrier to the primed position and storing energy in the lancet driver. In further embodiments, pairs of firing ramps disposed within the internal channel interact with the second arm portions of the cantilevered priming arms as the lancet carrier is drawn to the primed position, disengaging the connection and releasing the energy stored in the lancet driver to fire the device.
Claims Coverage
The partial set includes three independent claims. Across these claims, the core inventive coverage centers on a cantilevered priming arm arrangement that moves toward the internal channel to draw a lancet carrier to a primed position and store energy in a lancet driver, with broader scope for opposing arms and firing-ramp disengagement.
Cantilevered priming arm with parallel and perpendicular portions
A lancing device with a housing and an internal channel, a lancet carrier translationally mounted to carry a lancet along a strike path from a primed position to a lanced position, and a lancet driver for storing energy and driving the lancet carrier; and a first cantilevered priming arm having a first arm portion generally parallel to the internal channel and a second arm portion generally perpendicular to the internal channel, the second arm portion connected to the lancet carrier, wherein movement of the first arm portion toward the internal channel draws the lancet carrier to a primed position and stores energy in the lancet driver.
Opposing cantilevered priming arms with firing-ramp disengagement
A lancing device including a housing with an internal channel, a lancet carrier translationally mounted to carry a lancet along a strike path from a primed position to a lanced position, and a lancet driver for storing energy and driving the lancet carrier; a first cantilevered priming arm and a second cantilevered priming arm each having a first arm portion generally parallel to the internal channel and a second arm portion generally perpendicular to the internal channel with the second arm portions connected to the lancet carrier, wherein the first and second cantilevered priming arms are disposed on opposing sides of the internal channel and movement of the first arm portion of either or both toward the internal channel draws the lancet carrier to a primed position and stores energy; and a pair of firing ramps disposed within the internal channel positioned so the firing ramps and the second arm portions respectively interact to disengage the connection between the second arm portion of the respective priming arm and the lancet carrier when the lancet carrier has reached the primed position, thereby releasing energy stored in the lancet driver and firing the device.
User-force priming improvement using cantilevered arm energy storage
In a lancing device having a housing, an internal channel, a lancet carrier disposed in the internal channel, and a lancet driver, wherein a user applies force to a housing to prime that lancet carrier into a primed position, an improvement comprising a cantilevered priming arm having a first arm portion generally parallel to the internal channel and a second arm portion generally perpendicular to the internal channel, the second arm portion connected to the lancet carrier, wherein movement of the first arm portion toward the internal channel draws the lancet carrier to a primed position and stores energy in the lancet driver.
Across the independent claims, the main inventive features are directed to a cantilevered priming arm geometry with parallel/perpendicular arm portions that draws a lancet carrier to a primed position and stores energy in a lancet driver, and broader scope with opposing cantilevered priming arms and firing ramps that disengage the connection to release stored energy and fire the device.
Stated Advantages
Not explicitly described in patent.
Documented Applications
Not explicitly described in patent.
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