摘要:
Devices, systems and methods are provided for cutting the skin, accessing and collecting physiological sample therein, and measuring a characteristic (e.g., an analyte concentration, of the sampled physiological sample). The subject devices are in the form of a tester or test element which includes a biosensor and preferably only one blade member that is removed in location from the biosensor. The placement of the blade or micro-blade element may vary, but is most preferably located to provide clearance from a user's finger during biological sample collection in connection with the biosensor. The testers are preferably configured to be stacked in a magazine for successive firing by a meter configured to automatically actuate sample acquisition and reading. Systems and methods in connection with the subject testers are also provided.
摘要:
A region of skin, other than the fingertips, is stimulated. After stimulation, an opening is created in the skin (e.g., by lancing the skin) to cause a flow of body fluid from the region. At least a portion of this body fluid is transported to a testing device where the concentration of analyte (e.g., glucose) in the body fluid is then determined. It is found that the stimulation of the skin provides results that are generally closer to the results of measurements from the fingertips, the traditional site for obtaining body fluid for analyte testing.
摘要:
A lancet device uses a planar blade that implements an incision in the skin of a patient using a slicing action. There is a blade support arm pivotably secured within a hollow housing. The pivot connection between the blade support arm and the housing is formed by a pivot pin which extends from the housing and is positioned in a slot receptacle formed on the blade support arm. The pivot pin is free to reciprocally move within the slot receptacle as the blade support arm pivot about the pivot pin. The rotation of the blade support arm about the pivot pin is implemented by a bias spring. The path traversed by the blade support arm as it pivots is controlled by a groove located on the interior surface of the housing which engages a projection that extends from the blade support arm. As such, when the support arm pivots from a first position to a second position, the projection on the blade support arm traverses the groove in the housing. The action of the projection of the blade support arm following the groove in the housing causes the slot receptacle on the blade support arm to reciprocate. Consequently, the blade is caused to reciprocate within the housing as it rotates with the blade support arm, wherein the blade exits the housing, implements an incision and is again retracted into the housing traversing a "tear drop" shaped path.
摘要:
A finger stick device for making a skin incision includes a blade pivot arm having a first end pivotally coupled to a housing and a second end having an upper sloped surface and a lower surface. A blade is affixed to the second end such that its cutting edge extends away from the lower surface. A resilient bias member when actuated traverses the upper surface and depresses the second end of the blade pivot arm, such that the blade exits the housing and incises the skin. The incising operation is complete upon the bias member traversing the sloped upper surface of the blade pivot arm. Also disclosed herein is a method for manufacturing the finger stick device, in which the bias member and blade pivot arm are molded as a monolithic unit. A blade is attached to the blade pivot arm, and the blade and monolithic unit are inserted into the housing. Further disclosed is an embodiment in which the housing is formed of two uniformly shaped halves, which when joined, provide an internal space for the monolithic unit. In this manner, the two halves are joined with the monolithic unit aligned therebetween so that the housing appears as an integral unit.
摘要:
A finger stick device for making a skin incision includes a blade pivot arm having a first end pivotally coupled to a housing and a second end having an upper sloped surface and a lower surface. A blade is affixed to the second end such that its cutting edge extends away from the lower surface. A resilient bias member when actuated traverses the upper surface and depresses the second end of the blade pivot arm, such that the blade exits the housing and incises the skin. The incising operation is complete upon the bias member traversing the sloped upper surface of the blade pivot arm. Also disclosed herein is a method for manufacturing the finger stick device, in which the bias member and blade pivot arm are molded as a monolithic unit. A blade is attached to the blade pivot arm, and the blade and monolithic unit are inserted into the housing. Further disclosed is an embodiment in which the housing is formed of two uniformly shaped halves, which when joined, provide an internal space for the monolithic unit. In this manner, the two halves are joined with the monolithic unit aligned therebetween so that the housing appears as an integral unit.
摘要:
A method for easily and safely obtaining a blood sample from a horse or other hoofed animal is disclosed. The process involves the steps of making a small incision in the coronary plexus at the back of a hoof; allowing a small amount of blood to flow from the incision; and then collecting a portion of the resulting blood with a capillary tube or other withdrawing device.
摘要:
An instrument (10) for obtaining a fetal blood sample including an elongated member (12) having an open end portion (14) and a membrane (16) disposed over the open end portion (14) for perfecting a seal about the open end portion (14). A lancet (18) in the form of a blade (64) or a sharp ended capillary tube (48) is disposed in the elongated member (12) for piercing the membrane (16) and making an incision in the skin of a fetus (20). A plunger (26) is supported within the elongated member (12) and is movable to create a suction within the open end portion (14) to draw fetal blood from the incision through the pierced membrane (16) and into the open end portion (14).
摘要:
A blood collecting device (10) includes a lancet (40) and a capillary tube (30) carried together by an elongated member (14). The tube (30) is simultaneously positioned adjacent the skin when the lancet (40) is advanced by the member (14) to puncture the skin. The lancet (40) is automatically retracted by a retraction spring (54) but the tube (30) is maintained in close proximity with the puncture for collecting blood issuing therefrom without further manipulation by the user.
摘要:
Lancet assemblies for puncturing the skin and creating an incision. Upon activation, the disclosed assemblies are configured to move through a firing sequence in which a puncturing instrument extends through an aperture in the device and then is retracted back into a housing of the device and cannot be re-fired. The assemblies are designed so that the aperture in contact with the incision site does not move relative to the incision site during the firing sequence. Accordingly, the tolerance of the assembly is reduced and the reliability of the incisions created by the assembly, including the depth and width of such incisions, is increased.
摘要:
A blood separation and testing system for a blood sample is disclosed. The blood separation and testing system includes a blood sampling transfer device adapted to receive a blood sample, a blood separation device, and a blood testing device. The blood separation device is adapted to receive a portion of the blood sampling transfer device such that with the blood sampling transfer device received within the blood separation device and a rotational force applied to the blood sampling transfer device, a plasma portion of the blood sample is separated from a cellular portion of the blood sample. The blood testing device is adapted to receive a portion of the blood sampling transfer device to analyze the plasma portion of the blood sample and obtain test results.