Manual device for examining a body fluid
View Patent ↗The present invention provides a portable blood sugar measuring device comprising a tape unit for winding a test tape forward in sections, a detection unit for detecting measured values on the sections of tape to which body fluid has been applied, and a housing to hold the tape unit and detection unit. The tape unit and/or the detection unit can be deflected relative to the housing ( 10 ) from an operating position against a flexible restoring element ( 18 ) when subjected to a shock load. Also disclosed is a novel cover having open and closed positions. The cover is positioned at an opening of the housing through which the receiving site of the tape unit protrudes. The cover thus protects the receiving site from external effects when the cover is in the closed position. Similarly, the receiving site is accessible to apply body fluid thereto when the cover is in the open position.
1. A handheld device for analyzing a body fluid, comprising:
a tape unit configured to wind a test tape forward and having a receiving site adapted to receive body fluid;
a detection unit configured to analyze sections of the tape to which body fluid has been applied;
a housing which holds the tape unit and the detection unit, the tape unit having a receiving head which protrudes from the housing in an operating position, whereby the test tape is exposed in the operating position;
a flexible elastic restoring element disposed in the housing and connected to the detection unit, at least one of the tape unit and the detection unit being moveable into and relative to the housing against the flexible restoring element when subjected to a shock load; and
a housing guide in which at least one of the detection unit and the tape unit is mounted with a degree of play.
2. The handheld device of claim 1 , wherein the at least one of the tape unit and the detection unit is moveable from an operating position into the housing.
3. The handheld device of claim 1 , wherein the detection unit is elastically supported against the housing by the flexible restoring element.
4. The handheld device of claim 1 , wherein the tape unit and the detection unit are held in a defined position relative to one another by opposing engagement surfaces under a restoring force of the restoring element.
5. The handheld device of claim 1 , further comprising a release mechanism configured to act on the flexible restoring element to release the tape unit and the detection unit from a mutual stop position.
6. The handheld device of claim 5 , wherein the housing further comprises a flap to which the release mechanism is connected.
7. The handheld device of claim 1 , wherein the detection unit and the tape unit are mounted in the housing guide with a degree of play.
8. The handheld device of claim 1 , wherein the at least one of the detection unit and the tape unit is guided substantially linearly by a sliding carriage disposed in the housing.
9. The handheld device of claim 8 , further comprising a gear unit and an advancing drive for the test tape, the sliding carriage being configured to be driven by the gear unit using the advancing drive.
10. The handheld device of claim 1 , wherein the restoring element is elastic.
11. The handheld device of claim 1 , wherein the restoring element comprises a spring that pretensions the at least one of the tape unit and detection unit in an operating position.
12. The handheld device of claim 1 , wherein the at least one of the tape unit and the detection is movable along multiple axes of freedom when subjected to a shock load.
13. The handheld device of claim 1 , wherein the receiving head is deformable.
14. The handheld device of claim 1 , further comprising a cover attached to the housing, the cover having open and closed positions, whereby the receiving site can be screened from external effects when the cover is in the closed position and whereby the receiving site is accessible to apply body fluid thereto when the cover is in the open position.