Device for positioning a body part for fluid analysis
First Claim
1. An analytical instrument for body fluids and for determining blood sugar, the analytical instrument comprising a housing and a device for positioning a body part, the device comprising a circular flexible compression element for pressing against the body part while increasing pressure and a rigid support part to hold the compression element on the housing, wherein the compression element has an engaging member for the body part, the compression element can be pressed into the housing during liquid withdrawal such that a withdrawal region of the body part is exposed in an interior of the housing opposite to a flat test field;
- wherein the compression element is permanently connected at a connecting area to a rim of an opening in the support part;
wherein the rim has a height;
wherein the connecting area extends over the entire height of the rim of the opening;
wherein the support part has a top surface and a bottom surface facing the interior of the housing, wherein the rim height extends from the top surface to the bottom surface;
wherein the connecting area of the compression element is permanently connected to the rim over the entire height of the rim; and
wherein the compression element can move past the bottom surface when pressed.
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Accused Products
Abstract
A device and a method are disclosed for positioning a body part (16) on an analytical device (14) for body fluids includes a flexible compression element (24) for pressing against the body part (16) while increasing the pressure and a rigid support part (26) to hold the compression element (24) on a housing (12) of the analytical device (14). The compression element (24) has an engaging member (34) for the body part (16) which can be pressed into the housing (12) such that a withdrawal region (56) of the body part (16) is exposed in the interior (18) of the housing (12) in order to remove liquid.
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Citations
34 Claims
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1. An analytical instrument for body fluids and for determining blood sugar, the analytical instrument comprising a housing and a device for positioning a body part, the device comprising a circular flexible compression element for pressing against the body part while increasing pressure and a rigid support part to hold the compression element on the housing, wherein the compression element has an engaging member for the body part, the compression element can be pressed into the housing during liquid withdrawal such that a withdrawal region of the body part is exposed in an interior of the housing opposite to a flat test field;
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wherein the compression element is permanently connected at a connecting area to a rim of an opening in the support part; wherein the rim has a height; wherein the connecting area extends over the entire height of the rim of the opening; wherein the support part has a top surface and a bottom surface facing the interior of the housing, wherein the rim height extends from the top surface to the bottom surface; wherein the connecting area of the compression element is permanently connected to the rim over the entire height of the rim; and wherein the compression element can move past the bottom surface when pressed. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. An analytical instrument, comprising:
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a housing having an interior; a circular flexible compression element having a distal subregion and a proximal subregion, the distal subregion and the proximal subregion converging in a conical manner to form an open engaging member, the open engaging member being configured to engage a finger; a rigid support part holding the circular flexible compression element on the housing, the rigid support part defining an opening with a rim around the opening, the rim having a height, and the rigid support part having a bottom surface that faces the interior of the housing; the proximal subregion being permanently connected at a connecting area to the rim of the rigid support part; the connecting area extending over the entire height of the rim of the rigid support part to shift a bending site of the flexible compression element towards the rim of the rigid support part so that the engaging member of the circular compression element moves past the boundary surface of the rigid support part when the finger is pressed against the circular flexible compression element to expose the finger to the interior of the housing; wherein the rigid support part is a ring washer made of metal; wherein the compression element is made of silicone; wherein the rigid support part has a top surface, wherein the rim height extends from the top surface to the bottom surface; and wherein the connecting area of the compression element is permanently connected to the rim over the entire height of the rim. - View Dependent Claims (29, 30, 31, 32)
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33. An analytical instrument, comprising:
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a housing having an interior and a boundary surface facing the interior; a circular flexible compression element having a distal subregion and a proximal subregion, the distal subregion and the proximal subregion converging in a conical manner to form an open engaging member, the open engaging member being configured to engage a finger; a rigid support part holding the circular flexible compression element on the housing, the rigid support part having a bottom surface that faces the interior of the housing and a top surface located opposite the bottom surface, wherein the rigid support part has a height extending from the bottom surface to the top surface; the proximal subregion being permanently connected at a connecting area to the rigid support part; the connecting area extending over the height of the rigid support part to shift a bending site of the flexible compression element towards the rigid support part so that the engaging member of the circular compression element moves past the boundary surface of the housing when the finger is pressed against the circular flexible compression element to expose the finger to the interior of the housing; the connecting area being inclined away from the boundary surface of the rigid support part at an angle in a range of 50°
to 70°
;the distal subregion having a free outer edge that tapers in a wedge-shaped manner towards the proximal subregion; the proximal subregion having an outer side; the circular flexible compression element having a stop bead on the free outer edge of the distal subregion, the stop bead being configured to brace against the outer side of the proximal subregion to limit further collapse of the circular flexible compression element; an abutment attached to the boundary surface of the rigid support part; and the abutment having a beveled surface that extends inwards to create a locking support with the proximal subregion when the circular flexible compression element is pressed by the finger to enhance positional accuracy of the finger.
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34. An analytical instrument for body fluids and for determining blood sugar, the analytical instrument comprising:
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a housing having an interior and a boundary surface facing the interior; and a device for positioning a body part, the device including a circular flexible compression element for pressing against the body part while increasing pressure, and a rigid support part to hold the compression element on the housing, wherein the support part has a top surface and a bottom surface, wherein the support part has a height that extends from the top surface to the bottom surface, wherein the entire connecting area of the compression element is permanently connected to the support part over the entire height of the support part, wherein the compression element has an engaging member for the body part, the engaging member can be pressed into the housing to a stop position under the boundary surface of the housing, where a pressing depth of the compression element is limited by a stop, such that a withdrawal region of the body part is exposed in the interior of the housing opposite to a flat test field in order to remove liquid.
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Specification