DE19722852A1 - Skin or tissue puncture instrument - Google Patents

Abstract

Instrument to puncture skin or tissue, to draw blood or tissue fluid into a carrier, has a pointed puncture pin together with a cutting blade in the area of the point to form a cut as well as a puncture. The blood or fluid is taken up by a carrier which opens up the puncture/cut to assist the outflow. The carrier is contained within a sterile package, before use, and can be easily inserted into and removed from the instrument.

Description

In DE P 3806574.6 and P 3925940.4 as well as in Euro 88103775.8 Already vibrating lancets and rotary cannula as a means of Destruction of blood capillaries located in the deep layers of the skin specify within a suction cup. With DE P 196 13 722.5 and P 197 05 091.3 minimized the injury by brief jerky movement of the punctured skin Puncture tip or cutting edge and the device-like stretches limitation of this movement in different solution examples described as well as the simplification of operation, not least by the direct coupling of the test strip with the puncture tip a commercial glucometer as the main area of responsibility Method and its device equivalent.

P 197 06 047.1, applied for as the main patent, also contains an example in which by counter-rotating spring tension a spring for the from each side of the puncture device Vacuum pump as well as for the lateral movement impulse was excited. Such in and of itself practical However, handling assumes that the user really does both Sides exert pressure at the same time.

With the current registration the goal is pursued, the Spring tensioning movement for the pressure sensor either with the  To couple spring tensioning movement for the vacuum pump or with the trigger movement for the vacuum pump. Also the possibility a "recut", i.e. H. a cut expansion There was no blood flow to the test area in this Technically simplified connection. Since the puncture device is the same how the glucometers are designed to be flat and pocket-compatible should become more constructive in this direction Considerations made. The spring for the Impulse generator for the transverse puncture tip shift as well the lowering of a button to reduce the size of a bellows (for example as a vacuum pump) as if by lever guidance. There is one for inserting a test strip into the suction cup Leaf spring guide cheap in relation to the puncture site Tappet and counter tappet for the definition of the transverse section important move. It is also useful in a longitudinal axis the lower edge of the device deeper than the suction cup edges pull to account for the bulges of the human body carry. The skin can slip into the suction cup namely hampered by excessive pressure on the edge of the suction cup become. The correct application of this "length measurement" on the body can be checked by using at least two (over cross mounted) trigger grids the suction pump movement either can be triggered or must be unblocked.

The improvements extend to the area of manufacturing, where it facilitated the possibility of casting parts Assembly went out, for example with tongue-shaped grid devices Base, cover or intermediate plates, the locking hook by pressure or train can be lifted out of the recesses of the moving parts. Rail-like toothing, especially along a longitudinal function afford belong here, also the assembly of the axle one  a plunger to move the puncture tip through the suction bell-shaped hammer acting through it according to Art a push button. (A wedge guide for ram movement is necessary higher friction and therefore reduced kinetic energy). The Sealing the glucometer well around the test strip was done by the variant with a conical design of the latter enriched elastic material choice. Even applying one A ring of elastic mass on the test strip represents one Simplify this problem. For the test strips This mass then builds up around the shaft entrance sealing.

Combinations of the solutions shown here are also intended be protected, like the innovations shown here can be used with previously mentioned elements without the To leave the essence of the invention: a pocket-sized, Inexpensive, handy and, above all, painless method for Blood sampling (also for other diagnostic measures, such as blood coagulation test, examination for substances required for kidneys, etc. to accomplish.

Description of the embodiments

Fig. 1 shows the top left in longitudinal section and top right of the cross-section of a suction cup to the pulse generator for the transverse puncture tip displacement in natural size. Including in pairs - above in front of the skin suction, below each after - longitudinal sections through the suction pump, in the middle through the center line, below along the sliding bar ( 232 ) - on the upper cross section - as a pulse generator. The representation is highly schematic.

The longitudinal section of the suction bell ( 1 ) did not show the retaining clip connected to the glucometer (not shown) from above, which presses the lid ( 2 ) against the sealing ring ( 3 ). The sealing compound ( 4 , see Fig. 7 left) in the slot ( 6 , cross section) of the cover secures the negative pressure in the suction cup. The retaining spring ( 356 , see. Fig. 6 above) as a wire or better flat spring bow is used to center and stabilize the test strip and thus the puncture tip, the cutting edge of which extends transversely to the broad side of the test strip ( 103 ). The plunger ( 7 ) is guided through the suction cup wall. His cross pin is gripped by the clan on the hammer ( 9 ). The latter rotates around the axis ( 10 ). The free end of the hammer lies in a longitudinal groove in the sliding beam ( 232 ) and is carried by it when it moves in both directions. The plunger is moved to the test strip (not shown, but its position corresponds to the slot) and this is moved to the counter plunger ( 10 ) (when moving to the left) and removed.

On the longitudinal section below, two of the four vertical bars of the holding clips ( 11 ) for the glucometer ( 12 ) are drawn, which emanate from the suction cup. The cover flap ( 15 ) is rigidly attached to the roller ( 13 ), which rotates about the axis ( 14 ). Inside the bag ( 17 ) there are two plates ( 18 ) opposite each other, on which the two compression springs ( 70 , 71 ) are supported. A hose leads from the inside of the bag into the suction cup.

Above the state when the springs ( 70 , 71 ) are tensioned by lowering the cover flap, below in relaxation.

As is demonstrated below with more lateral cut for one side, the supports ( 19 , here with end roller) extend from the cover flap. When the lid flap is lowered, this support meets a wedge guide of the sliding bar ( 232 ), with the tension spring ( 20 ) stretched out, the left end of which is fastened to the base plate ( 21 ). The locking pin ( 22 ) guided through the cover plate snaps into the groove on the upper edge of the sliding bar ( 232 ) and fixes it.

If the suction cup with test strips and glucometer is placed on the skin and the lid is pressed, the suction cup rises above the skin level so that the air can escape from the bag. If the lid flap is then released, the suction cup lowers on the skin. The locking pin ( 22 ) is pushed by a fixed distance thanks to its leaf spring; but finally he leaves his locking groove. The slide beam is then struck by the tension spring against the hammer ( 9 , cross section above) and the test strip is moved against the counter plunger. The extent of the pivoting movement is determined on the adjusting screw ( 54 ).

Fig. 2 gives a similar example as Fig. 1, but the cover flap is in two parts by additional slotted strips ( 23 ), so that the cover flap ( 15 ) can be lowered parallel to the base plate ( 21 ) over a bellows against the compression spring ( 70 ) . A cross section through the axis ( 14 ) of the roller ( 13 ) is shown above. Longitudinal cuts in the middle, the upper one with the bellows relaxed, the lower one with the bellows compressed. (The cut follows the line A - B of the cross section).

As a small detail, the start button ( 24 ) is drawn in a longitudinal section on the left, which pulls the edge pin ( 25 ) against a weak tension spring from a flattening of the roller ( 13 ). This takes place when the bellows are compressed and triggers the lifting of the cover flap for generating suction. In the axis of rotation ( 27 ) at the end of the column ( 26 ) standing on the base plate there are bores that deviate from one another by 90 degrees for a short and a long lever rod (see detail above), which are symbolized only as lines. One end of the long rod ends in the swivel joint ( 28 ) of the cover plate, that of the short rod in the swivel joint ( 29 ) on the sliding bar ( 232 ). The compression spring ( 30 , vertical section detail on the right) lies between the sliding bar ( 232 ) and the sliding bar ( 256 ). The sliding bar ( 232 ) is widened inwards in order to provide engagement with a grid (not shown, but see detail below) in the locking recess ( 31 ). The right end of the compression spring ( 30 ) is connected near the swivel joint ( 29 ) via the sliding sleeve ( 34 ) to the stop knob ( 35 ) on the push rod ( 232 - the telescopic rail character of which is only shown in the vertical section detail), the other end of the spring is connected to the push bar ( 256 ). When lowering the cover plate, the compression spring ( 70 ) is tensioned in the bellows, but also the compression spring ( 30 ) via the short rod on the swivel joint ( 29 ). Both sliding bars are locked separately and disengaged by telescopic rods from the cover flap at a predetermined height, first the sliding bar ( 256 ), which serves as a pulse generator for the puncture movement (cf. detail above in FIG. 1). This only happens after the bellows has sucked air out of the suction bell via the suction channel ( 32 ). The sliding beams are retrieved via the weak tension spring ( 33 ) when lifting the cover flap according to the grid solution.

In the middle representation, the suction cup was rotated 90 degrees in order to make the sleeve ( 36 ) around the plunger ( 7 ) visible, which keeps the rising skin away from the plunger. In the center of the test strips ( 103 ) with test field and puncture tip below; and the two retaining springs ( 356 ) for centering the test strip.

The detail below shows in longitudinal section on the left in natural size, on the right in 2: 1 scale a telescopic grid pin in which the wire spring ( 37 ) presses the central locking pin down through a slot in the sleeve.

Fig. 3 is a further development of the device according to FIGS. 1 and 2. Above a cross section in the height of the plunger and counter plunger in the suction cup, including the two functional stages before and after the skin suction in longitudinal section. (The longitudinal cuts are made laterally in cross section).

The locking troughs ( 38 , 39 , 40 ) lie in the base plate around the bellows, which is fastened to the base plate by means of the pot ( 41 ). The club-thickened ends of pins, which are fastened to the cover flap ( 15 ), dip into these recesses. A fastening ring, against which the compression spring ( 70 ) is supported, also serves to unclamp the bellows towards the cover flap. Before lowering, the front pin ( 42 ) acts against the elliptical edge of the center wedge ( 43 ) and pushes the lower sliding bar ( 232 ) to the left, the compression spring ( 30 ) being tensioned between the lower and upper ( 256 ) sliding bar. (The elliptical shape allows the sliding distance to be reduced in the stage of greater spring tension and thus to save energy.) Both sliding beams have recesses in the area of the cover flap; the locking trough ( 31 ) of the lower sliding bar is shown, in cross-section also the oblique grid ( 44 ).

The grid ( 44 ) is drawn out below in 2: 1 scale. In addition to its fastening screw on a bar of the base plate, a mandrel extends from its leaf spring into a hole in the base plate bar as a rotation lock. The thickened head (or hook) with functionally adapted side surfaces extends into the locking recess ( 31 ) of the sliding bar ( 232 ). The grid is triggered on the cable ( 45 ) which is attached to the cover flap.

An example of such a grid is shown on the right, the leaf spring of which is replaced by a material tongue of the base plate (in other cases the cover or middle plate). The slide-in ( 47 ) is drawn in at the top on a scale of 1: 1 and can be pulled out laterally under the tongue as a material bridge in the mold. Where this is functionally portable, the insert is removed in the longitudinal direction (the grid tongue is then transverse to the one shown).

The cable pull ( 48 ) is drawn in the lower longitudinal section, which is pulled through a hole in the cover flap and then knotted. The other thread end is connected to an adjusting screw in a thread of the base plate with bensing lock. In this way, the extent of the expansion of the bellows and thus the maximum suction development can be influenced. The adjusting screw ( 49 ) on the cable ( 48 ) to the grid for the upper push rod can be used to determine the bellows expansion at which the pulse generator is triggered. (The same applies to the release of the movement of the lower sliding bar, the return spring of which has been omitted, see FIG. 2). The suction channel ( 32 ) between the suction bell and bellows was only drawn in the upper longitudinal section.

At the end of the tappet ( 7 ), an oblique beam is shown in the cross section at the top, which is guided and actuated between two pins of the upper sliding beam. (A hammer mechanism can also be used, as described for example in FIG. 10). Ram guide in longitudinal section (after rotation by 90 degrees in the middle) and the protective sleeve for the ram and the guide spring for the test strip were described with reference to FIG. 2.

The detail at the bottom right shows in natural size the top view of two parts made by casting using the sliding bars ( 232 , 256 ), which are connected to each other by webs. The web ( 50 ) is used to connect the lower sliding beams, the web ( 51 ) for the upper ones. The latter has a kink, as can be seen on the vertical section detail on the right. Above the vertical section detail at the bottom right, a second demonstrates how the two webs can be inserted through a slot ( 52 ) in their trough in the base plate ( 16 ).

Fig. 4 shows another example of casting rationalization, as it also facilitates assembly. A longitudinal section through the upper ( 256 ) and through parts of the lower sliding bar is shown on the left. These are located in an upper and lower rail guide of the base plate and have channel guides to each other and to these base plate rails, the length of which is adapted to their functional paths. These gutters and corresponding strips with the availability of neighboring parts become clearer on the right on the vertical section which is drawn along the cutting line AB at the height of the web ( 50 ). The center wedge ( 43 ) is also shown here and a roofing, as can be used to guide the pins that extend from the lid flap.

FIG. 5 shows a longitudinal section detail above for exposure and below a top view of the trigger plate (53). For this purpose, the double web ( 54 ) towards the base plate has been provided with the bellows during assembly of the pot (41, cf. FIG. 3). (The bellows contour is entered as a dashed circle). The double web corresponds to elongated slots in the release plate.

The locking troughs ( 38 , 39 , 40 ) correspond to slightly larger bores in the release plate, the central fastening screw with a central nipple for suction, an oval slot in the center. Above, the small cross-sectional detail on the side shows how the spring tongues ( 55 ) engage in notches in the base plate ( 16 ). If the trigger plate on the two cables is pulled over the rollers ( 56 , 57 ) - combined upwards to form a central cable against the spring tongues ( 55 ) by lifting the wavy, hollowed-out half-shell as the start button ( 24 ), the edges acting as a grid give the holes clear the passage for the club thickening of the pins Ver over the locking troughs ( 38 , 39 , 40 ) and the bellows can expand under the action of the strong compression spring.

On the left below, on a 2: 1 scale, another variant of a release, especially for injection molding, top view in top view, longitudinal detail below. The difference to the form described in Fig. 3 is in the angling of the head, so that the tongue of the trigger is arranged parallel to a bar underneath and moved past, which about their tensile forces (here to the left), but also the space requirements specifically also accommodates in this facility.

Below another view of a variant of the release plate ( 53 ). This is pushed to the left on the upward-reaching angle plate ( 58 ). This sliding movement is prolonged by the fact that initially only slots ( 60 ) are present around the pins above the lobes from the lid flap, which end in wide holes after a sliding distance and release the pins for generating suction. Via the crosspieces ( 59 ), however, the sliding bars ( 232 ) are also moved during this sliding movement and the compression springs ( 30 ) are tensioned, which are triggered immediately under the lifting of the cover flap in order to act as a pulse generator for the tappet in the suction bell.

The locking troughs ( 38 , 39 , 40 ) correspond to slightly larger bores in the release plate, the central fastening screw with a central nipple for suction, an oval slot in the center. Above, the small cross-sectional detail on the side shows how the spring tongues ( 55 ) engage in notches in the base plate ( 16 ). If the trigger plate on the two cables is pulled over the rollers ( 56 , 57 ) - combined upwards to form a central cable against the spring tongues ( 55 ) by lifting the wavy, hollowed-out half-shell as the start button ( 24 ), the edges acting as a grid give the holes clear the passage for the club thickening of the pins Ver over the locking troughs ( 38 , 39 , 40 ) and the bellows can expand under the action of the strong compression spring.

Figs. 6 shows the left side in the longitudinal sectional detail in scale 1: 2, a variant for sealing the Saugglockendaches to a test strip. The test strip can lie flat in a package, with a kind of folding umbrella ( 758 ) being folded up, ie along the test strip. Unfolded, the screen can be clamped between a fastening ring ( 757 , on the left of it in a plan view) and a sealing ring ( 3 , on the far right on the longitudinal section). Under the top view of the fastening ring with the passage slot in the shaft of the glucometer, a longitudinal section detail with a mounting ring and in the glucometer shaft insert strip for protection during the application of adhesive in order to permanently connect such a fastening ring to a glucometer.

The detail on the left in longitudinal section concerns a suction bell ( 1 ) in natural size. An arrangement of push rods ( 256 , 232 ) can be seen on the side, and a version of the retaining spring ( 356 ) for inserting the wedge-shaped end of the test strip with a puncture tip is also clear. On the left, the detail of a somewhat higher arrangement of this retaining spring ( 356 ) above the end of the test strip, which is also wedge-shaped at the top and thickened around the test surface, in order to form a kind of swivel joint for the cutting movement with a smaller radius (which corresponds to a different skin depth).

The rectangles that are drawn in dashed lines over the level of the suction cup edge correspond to the release sleeves ( 63 , 64 ) of FIG. 8.

Fig. 7 shows on the left on a scale of about 3: 1 the detail of the piece of a test strip ( 103 ), which is inserted into a glucometer ( 62 ). The slot of the shaft is shown in a top view, while the test strip is viewed from the narrow side, i.e. from the side. It can be seen (by exaggeration) that the contour of the test strip shows a swelling with which it clamps itself in the edge of the glucometer shaft, which causes a seal when the shaft or test strip is elastic. On the far right, the broadside of the test strip segment is shown with its swelling; the shaft is again shown in a top view.

In the middle, a device for a rotary stylus with a puncture tip is shown, namely on the left in a longitudinal section detail and on the right in a cross section detail in natural size along the section line AB of the longitudinal section through the suction cup. On the longitudinal section, the rectangle of the test field for the substance measurement is dashed in the interior of the puncture stylus and the three conduction paths in the glucometer shaft are shown with dash-dotted lines. The glucometer ( 12 ) is fastened to the roof sleeve ( 66 ) by means of the retaining clips ( 11 ) and is moved by pushing the sliding bar ( 256 ) with its cross pin against a pin on the roof sleeve (to the left). The rotation is limited by the adjusting screw ( 54 ) shown as a half-wing nut, which can be moved and locked in a longitudinal slot and abuts against the stop ( 67 ) on the base plate. The tension spring ( 33 ) between the roof socket projection and the base plate ( 16 ) is used for retrieval. On the cross section it can be seen that the projection of the puncture stylus within the roof sleeve is rectangular so that it can be turned by a socket wrench. The seal between the stylus and the suction bell ( 1 ) is made in the sealing ring ( 5 , longitudinal section). The remaining device construction corresponds to that of FIG. 3.

Fig. 8 shows in natural size in a cross section through the base plate of a device according to Fig. 3, modified by the variant of the trigger plate in Fig. 5, a locking device for securing the optimal device support on the human body. For orientation, the suction cup ( 1 ) and the pot ( 41 ) were drawn with the outlines of the bellows. The guide rails for the two longitudinally displaceable strips ( 68 , 69 ) in the base plate ( 16 ) were omitted. In the area of one transverse pin ( 72 ) of the two release sleeves ( 64 , here) each of the strips has a notch which corresponds to the shape of the notch ( 73 ) in FIG. 10. The bar ( 68 ) is connected directly to the release plate ( 53 ). The movement of the latter is coupled in opposite directions via the swivel lever to the axis ( 75 ) via two axes of rotation at the end of the lever between the release plate and the strip ( 63 ). (When coordinating the appropriate routes). By raising the release sleeves, the displacement of the strips ( 68 , 69 ) and thus that of the release plate ( 53 ) is released. Structure and function are supplemented by the illustration in FIG. 9.

Above in 2: 1 scale, on the left in longitudinal section, on the right in a top view, the detail of the assembly of the axis ( 75 ) of the swivel lever in a kind of push button recess on the base plate. The slit in the trough walls allows them to yield when the ball head is inserted at the end of the axle.

FIG. 9 supplements the illustration of the locking device according to FIG. 8. An excess length is reproduced from the bar ( 69 ) downward on the longitudinal section detail on the left in natural size: both the base plate ( 16 ) and the release sleeve ( 63 ) are from below to think about 3 cm shortened. The release sleeve is inserted through the compression spring between the bottom plate for the skin support and (not shown roof plate) at the end of the base plate and causes a springback downwards. Its transverse pin ( 76 ), which ends in the lateral sleeve wall, lies in the recessed recess of the bar ( 69 ). pressure against the human body releases the sliding movement of the bar, the compression spring still acting against the pressure of the device against the body by the human hand and thus facilitating the slipping of the skin into the suction cup, the edge of which is supported by the two support surfaces of the end plates is relieved of pressure.

The sleeve ( 358 ) is also shown on the right in longitudinal section. Its internal thread allows the release sleeve to be adjusted in height by means of an external thread, the locking cross pin ( 76 ) - rotated vertically in the sleeve illustration - rising from the sleeve.

In the longitudinal section detail in the middle, the height adjustability of the suction bell ( 1 ) against the base plate ( 16 ) is outlined. This is done via the thread ( 78 ) between the outer edge of the suction bell and the hole in the base plate. The penetration of air into the suction bell chamber is prevented by the sealing ring ( 77 ) between the unthreaded lower outer surface of the suction bell and the unthreaded lower part of the base plate bore. On the left, the position of a plunger as a pulse generator against the test strip.

The detail above, on the left in vertical and on the right in longitudinal section in natural size, brings a variant of the release grid already described for FIGS . 3, 5, primarily in injection molding, for example from DELRIN or other elastic and resistant plastic. The head at the end of the tongue is hollowed out from below by a locking recess, the bevels of which include a locking pin on the strip ( 68 ) and thus prevent the latter from moving to the left. Analogously to the embodiment in FIG. 5, the latching head is bent at a right angle at the end of the tongue and is effective next to the latter. On the left in the vertical section it is shown how the release sleeve ( 64 ), pushed forward from below, hits the tongue of the locking lever and can thus lift its head.

Fig. 10 deals with a device for subsequent cut expansion during the use of a device FITS according to Fig. 3 to 5. It is a cross-sectional detail on a scale of 2: 1.

The adjusting screw ( 54 ) for regulating the counter plunger from the center of the suction cup ( 1 ) rotates in the internal thread of the sliding sleeve, which can be moved within the bushing ( 80 ). The extent of the displaceability of the sliding sleeve is set on the adjusting screw ( 81 ) via the curved fork ( 82 ), which comprises the thread of the adjusting screw ( 54 ) (as can be seen in the longitudinal section detail above). The set screw ( 81 ) passes through a threaded bore of the gallows ( 82 ), which can be moved with its bar along the holding bar with the bushing ( 80 ). (The attachment with the base plate was not shown separately, since in principle it is possible according to the construction rules as given for FIGS. 4 and 6). The curved fork ( 83 ) comprises an adjusting screw ( 54 ), as is evident from the longitudinal detail above. If the bar of the gallows is pushed to the right, the fork leaves more space for the sliding sleeve ( 79 ) to emerge from the bushing ( 80 ), which is associated with the counter-plunger ( 8 ) retreating. The end of the gallows ledge passes through a gap in the groin arch ( 84 ). The movement transmission - at the same time also on the sliding bar ( 256 ) via the grid ( 85 , 86 ), with a free path is provided until the overcoming the recessed recess when sliding bar, which corresponds to the required gallows shift. The (not shown here) compression spring between the two sliding beams is tensioned when moving the inguinal arch to the right and with the notching of the grid suddenly on pin ( 87 ) transferred to the hammer ( 9 ). Its fork, which contains the cross pin on the tappet ( 7 ), moves the latter into the suction cup (and now by the extended distance as set using the adjusting screw ( 81 ). The last can be retracted to the left by hand in the starting position.

The small suction cup detail on the right shows the balance of forces when the axis ( 10 ) of the hammer is moved.

FIG. 11 is an overview of the last-mentioned functions and shows further variations and combinations possible similarities end. At the top, in a cross section at the level of the tappets in the suction cup ( 1 ) and at the bottom in a lateral longitudinal section, the device shown in FIG. 3 is supplemented with the mechanism for the widening of the cut, as was described in FIG. 10. Tripping via a cable pull, as shown in FIG. 4, is not necessary: the trigger plate ( 53 ) can be pressed to the left on its angle bar ( 88 ). When extending the release path to the holes through the slots ( 60 , see Fig. 5), the troughs for the spring tongues ( 55 ) in the base plate are extended, so that the spring tongues only in the inserted state of the trigger plate for engaging the clubbing Pins from the cover plate ( Fig. 4) take effect. A stamped part made of sheet steel will primarily be suitable as the material of the trigger plate. On the longitudinal section above the elliptical Keilpro filleiste or the central wedge (see. Fig. 3) such is drawn, which reaches higher up to the flat pin in its highest level and ends in a vertical. This arrangement is intended to ensure that the thrust effect for tensioning the spring on the sliding beam already occurs at a stage of the cover flaps in which the strong compression spring ( 30 ) does not yet require as much force for the expansion of the bellows. This wedge profile strip can, however, be omitted if the compression spring between the slide bars ( 232 , 256 ) is made by connecting the release plate and slide bar ( 232 ) shortly before the strong compression spring ( 30 ) is triggered during the sliding movement on the release plate to the left. The cable ( 48 ) on the grid for fixing the sliding wedge ( 232 ) can be omitted if the user is stopped to hold the trigger plate pressed to the right until the trigger grid for the sliding beam ( 232 ) is removed from the cover by means of a second cable - not shown, because lying behind the cable ( 48 ) is released. In this operating variant, the compression spring ( 89 ) can finally be mounted directly between the release plate ( 53 ) and the slide bar ( 256 ) and the slide bar ( 232 ) can be omitted. The complete retraction of the trigger plate to the left after lowering the cover flap can also be achieved by moving the ledge arch ( 84 ) to the right.

The two lower longitudinal section details at the stage of lifting the lid flap show the possibility of saving the tension spring ( 33 ) as a return spring for the bar arch (cross section above) by lowering a bar with a locking knob ( 90 ) (lower longitudinal section detail) and at the same time return the slide beam ( 256 ) and the trigger plate attached to it to the starting position to the right (upper longitudinal section detail). A side elastic strip with a locking knob ( 90 ) acts on opposite wedge edges of wings that arise from the strip arch or crossbeam upwards. If there is greater pressure in the opposite direction, these elastic strips with their knobs dodge sideways. The vertical section detail on the right above the upper longitudinal section detail shows how the latching knob in question can overtake it by laterally deflecting a bar. (Even with a wider wing panel, a basal slit can be provided under the wedge bevel to avoid a cross pin on the rigid strip from the cover flap with the groove guide upwards). The longitudinal section detail at the bottom at a scale of 2: 1 serves to demonstrate that the additional leaf spring ( 91 ) from the gallows ( 82 ) with spring action upwards can cause the counter-plunger ( 8 ) to retract to the extent that the fork ( 83 ) does this Space there. If the bar with the gallows is moved to the right, the counter-plunger between its sealing ring in the suction bell ( 1 , only shown in parts) is withdrawn. If this retraction movement is coupled with the movement of the slide bar ( 232 ), the counter plunger is again approached the test strip ( 103 , on top of the cross section) via the slide bar ( 256 ) before encountering the slide movement. The very weakly spring-backed sleeve ( 92 ) is set so that it secures a centering of the test strip for setting the puncture tip, but is displaced by the plunger ( 7 ) (as in the cross-section above). In this way, the insertion of the test strip into the suction cup from the top and even the retaining spring ( 356 , Fig. 1) can be facilitated by advancing the inguinal arch ( 84 ) and retracting the sliding bar ( 256 ), together with the sliding bar ( 232 ) and trigger plate ( 53 ) . 1, 6) can be saved.

To start up a device according to Fig. 3-11, a test strip ( 103 ) with a puncture tip is inserted through the fastening ring ( 757 , Fig. 6) into the shaft of a glucometer for electrical measurements in such a way that around the test strip towards the shaft or at least between Sealing ring ( 3 , Fig. 6) and suction cup have a seal. The latter is effected by a holding chamber ( 11 , Fig. 1), which extends from the suction cup roof upwards and on an edge strip ( 93 ) of the glucometer pulls it down against the suction cup roof. The lid flap ( 15 , Fig. 3) is now lowered - which can also be done before the glucometer is fitted - until it snaps into the trigger plate ( 53 , Fig. 3, 4, 5, 11), if necessary - approximately after the first uses - the height of the skin fold in the suction bell is adjusted by turning the edge of the bell ( 1 , Fig. 9 bottom center). Depending on the device variant, the suction cup ( 84 , Fig. 10, 11) or the trigger plate must be placed on the skin before or after the suction cup is placed on the skin, even before the glucometer is attached (namely for the retraction of the plunger and counter-plunger from the middle of the suction cup) ( 53 , Fig. 5, 11) are pushed or pulled to the right. The lowering of the lid flap is done by weak people expediently by resting the device on a table or similar counter bearing. On the body, the device with the long side is best placed transversely to short body curvatures (arms or legs, for example), which can be secured with a device according to FIGS. 8, 9. After placing it on the skin, the trigger plate is either moved directly in the device just mentioned and releases the pins from the cover flap and thus the same and the compression spring ( 30 ) for expanding the bellows or the trigger plate ( 53 ) is released by pressure ( Fig. 11) or pull on the start button ( 24 , Fig. 4) to actuate the suction pump to the left (or inwards).

Fig. 12 shows a sketch in longitudinal section in natural size of a device in a flat design, in which the puncture tip is angled perpendicular to the axis of the test strip ( 103 ) and the seal to the suction cup ( 1 ) in a recess of the suction cup roof with the test field edge ( 94 ) from above. The necessary application of pressure from above takes place via the small cover flap ( 95 ), which in turn is tensioned by the spring ( 96 ) between the small folding lever and the large folding lever ( 115 ). The two folding levers above the suction cup roof were symbolized by thick lines, extended when closed, dashed lines when opened. The tension spring ( 97 ), which is significantly stronger than the spring ( 96 ), causes a jerky lateral movement of the test strip ( 103 ), which is inserted into the shaft of the glucometer ( 12 ), and thus causes a rotation, via the hook pin that protrudes next to the suction cup of the test field with the puncture tip. The glucometer pivots on the swivel plate ( 98 ), which can be swung out around the axis ( 99 ) next to the suction cup. The details of two test fields - the lower one in the test strip portion shortened - let one recognize the variant with the test field edge from above on the edge of the hollow in the suction cup. The inner ring of the test field edge extends next to the puncture tip, the test field with the measuring reagents and the three electrical lines (enclosing two comparative measurements with a common neutral conductor) through the central well bore down to the skin. Blood contamination of the suction cup roof can thus be avoided. The hole ( 101 ) in the test strip is used to adjust the test strip.

The structure of the pump under the large cover flap ( 15 ) with the compression springs in the rubber bag in connection with the suction bell corresponds to that which was described for Fig. 1. Even more expedient, the two compression springs in the bag are replaced by rotary springs around the axis ( 14 ) of the roller for the lid flap. In the variant of the lowest cross-sectional detail, the test field has a lateral annular groove, which snaps into the sealing ring ( 100 ) in the suction cup roof (not shown).

For the two lower longitudinal section details, the scale was 2: 1 chosen.

FIG. 13 supplements the representation of the example from FIG. 12. On the left, a cross section at the height of the depression of the suction cup roof in natural size. Within the suction cup, the test field edge ( 94 ) is chosen to be hexagonal and is encompassed by the insert pot ( 102 ), which rotates in a ring groove guide in a ring groove guide by means of three elastic balls in the ring and protrudes to the left with a tab. An upwardly tapered pin of the insert pot engages in the hole ( 101 ) of the test strip, which is inserted into the shaft of the glucometer ( 12 ).

The short sector rotation of the insert pot, which encircles the hexagonal test field projecting downwards beyond the test strip in a key, occurs from the side flap through pin-shaped end hooks of the large folding lever ( 115 ) by lowering the wedge slide ( 104 ) from this pin against a weak compression spring . This wedge slide ( 104 ) is in the longitudinal slot ( 105 ) in the tab and causes with its wedge bevel a slight right turn of the insert pot and thus the point tip and thereby pushes the edge strip ( 106 ) of the base of the glucometer ( 12 ). The edge strip is connected to the rotating ring ( 107 ), which is fixed in height by three elastic balls in the bores of the suction cup ( 1 ) by means of an annular groove. In the vertical section detail on the right, the two functional stages are shown, namely on the left in front and on the right after lowering the wedge slide (104, which is guided in the base plate ( 16 ). The glucometer with the edge strip and the insert pot is turned back by the trapezoidal slide ( 108 ) Lowering of the pin ( 109 ) by the cover tongue ( 110 ) The trapezoidal slide springed back to the right engages in the slot ( 110 ) of the wedge slide slide ( 104 ).

In the longitudinal section detail shown, top right, the trapezoidal slide was displaced to the left by the pin ( 109 ) in the last phase of lowering the folding lever ( 115 ) and raised the wedge slider ( 104 ) until the tab of the insert pot was locked by the left short shoulder of the wedge slide after turning the glucometer back to the left (left vertical section detail).

The chain-dotted cable ( 111 ) leads over retaining strips rising from the base plate and, when lowered or raised by a finger, causes the cable to be shortened and thus releases the lid flap movement.

At the very bottom of the longitudinal section detail through the pump part, a latch is shown to the left by means of a compression spring, which can be pulled back over a roller by means of the cable. The structure of the pump corresponds to that described for FIG. 1. On the right-hand side there is a second cover flap with compression springs and bags for underpressure, which can be triggered by the function of the left cover flap on the cable in the event of insufficient skin suction. (Patients with a tendency to water bleeding can prevent such undesirable changes by using suction more sparingly).

The vertical section detail at the bottom right above the longitudinal section detail shows a switching mechanism within the roller ( 13 ) for the left cover flap ( 15 ) on a scale of 2: 1. The three disks A, B and C rotate about the axis ( 14 ) of the roller. The disk A has switching functions and engages with a pin in the curved elongated hole of the disk B, which is rigidly connected to the cover flap. The switching ball (black) lies in the round hole of disc C, which is rigidly connected to the folding lever ( 115 ) between the two cover flaps. Since half of the switching ball lies in the bore of the partition of the part of the roller ( 13 ) fixed on the base plate, the downward movement of the folding lever is blocked under the influence of its strong tension spring in the stage of the upper illustration ( 97 , FIG. 12). In the functional state of the figure below, it is released because the switching ball could move to the left into the elongated hole in disc B.

The three were over the enlarged vertical section details  Disks A, B and C in natural size in different radio stages are arranged one above the other. It is in a longitudinal Cutting roll shown, such as beveled edges - for example in the Bore disk C - the shift of the switching ball in and can favor from the bore of the partition.

The arrow indicates the subsequent direction of movement, the radial line for disc A the position of switching disc A, for disc B the position of the cover flap and for disc C the position of the folding lever ( 115 ). The tension spring on disc A symbolizes the restoring force in the counterclockwise direction, which is more conveniently achieved by means of a torsion spring. In the stage of the left row - as in the enlarged longitudinal section below - the pin of disk A has pushed the switching ball to the right into the hole in disk C and locked the folding lever in the raised state (the lid flap is closed). In the middle row stage, the lid flap was released and is raised. Her small pin in the elongated hole of disc A relative to the pin caused a left turn of the latter, so that the switching ball could escape into the elongated hole of disc B and released the movement of disc C with the folding lever. The switching ball leaves the slot B of the disc only when it can be pressed into the hole in the disc C by the pin of the spring-loaded disc A after lifting the hinged cover and locked there.

The packaging of a test strip ( 103 ) with the two test fields next to the puncture tip shows on the left above the lower longitudinal section details at the top in the longitudinal and below in the vertical section on a 2: 1 scale. The test fields with the reagents are surrounded by an edge ring, which at the same time prevents the blood escaping from the cut from spreading on the skin. An edge bead with a central dent can be seen above the test strip, in which the tip of the small folding lever engages in order to ensure pressure against the opening in the suction cup roof and sealing. The insert pot must be placed on the test strip or an opening for the sealing of the test field environment must be chosen far enough to ensure the sealing to the suction cup. (The lower edge of the test field boundary can also perform the sealing function by resting on the suction cup roof, see 16 ).

The protective cap ( 113 ) glued in the area of the test field has a thickened baseboard with a protective channel for the puncture tip and can be removed laterally (to the left) before use. The connecting hoses between the bags of the two pumps and the suction bell have been omitted.

The Fig. 14 performs again from an example of a rotary lancet (or rotating puncture tip) at which the test strip continues in continuation of the puncture tip in the plugged-meter. This can be seen in the longitudinal section below half the cross section through the suction cup roof - both of a natural size. Between the cross-section and the longitudinal section, the detail of a re-cutting mechanism in two functional stages. The construction is very similar to that of Fig. 3-11. Three pins ( 42 ) also protrude from the lid flap ( 15 ), which are held in place with their club-shaped ends by the spring-back release plate ( 3 ) when the lid flap is lowered under compression of the bellows. This stage is shown in the longitudinal section below. As with FIG. 3, the extent of the lid flap lifting - and thus the maximum suction strength - can be narrowed by a small and (by Bensingring) limited amount on an adjusting screw in connection with a cable pull. The lobed end of the front (left) pin already meets the wedge bevel in connection with the sliding bar ( 256 ) in the first stage of the lowering of the lid flap, which is displaced to the right and thereby tensioning a spring (see also Fig. 16), which with the sliding bar ( 232 ) is connected, which is prevented by the locking pin ( 22 ) from moving to the left. There is a telescopic spring-back and ge supported by an intermediate bracket locking pin chosen here so that the strong compression spring ( 70 ) in bellows does not have to spend increasing force against the locking tongue in an almost relaxed position. Since the tension of the spring ( 30 ) begins immediately when the lid flap ( 15 ) is lowered, the sliding bar ( 256 , which serves as a pulse generator for the puncture tip rotation) must be latched immediately. This is done by the fact that the elastic plate ( 114 ), which lies above the flap cover and continues with a pin through a hole in the latter onto the pin of the grid ( 22 ), is lowered manually. In the final stage of bellows reduction, the lock pin - but also that of the pin of the elastic plate that extends it - is through its hole in the lid flap pushed upwards, as can be seen in the lower longitudinal section .. After sliding its wedge plate to the left, the sliding beam ( 232 , extended) is held by the pin with the club-shaped end of the latter on the steep flank of the wedge plate, the height of which is selected so that the locking pin ( 22 ) is already in the lid lifting and appropriate skin suction ne has left the recess and actuated the rotation mechanism. The return of the sliding bar ( 256 ) and thus also the sliding bar ( 232 ) takes place via the cable pull ( 116 ), which is attached to the cover flap by a roller on a support from the base plate.

The tensioning of the cable - or of course the stretching to a predetermined elastic limit - takes place only in the final phase of the lid flap lifting under the influence of the compression spring ( 70 ). The mechanism for widening the cut in the event that the glucometer does not confirm blood saturation of the test fields consists of an egg-shaped rotating member ( 117 ) with a sector interruption, as is shown in two functional stages in longitudinal section detail in natural size between transverse and longitudinal section. The eccentric axis of rotation of the rotary member is mounted in the base plate in such a way that the adjusting screw ( 54 ), whose distance over the edge of the rotary member can be changed by rotation in the sleeve fastened in the rotary member, faces the end of the sliding beam ( 256 ) and follows its movement limited on the left. The small top view of the end of the sliding bar shows that its hook-shaped nose meets the deflection pin ( 118 ) on the roof sleeve (see cross section above and shifts it according to the setting of the adjusting screw.) The vertical tension spring - the function of which will be performed by a rotary spring - holds the rotary member in this basic setting, since a pin for fastening a small additional tension spring abuts a latch on the base plate (or on the suction cup). At a right angle to the axis of rotation and to the adjusting screw, a second adjusting screw is arranged in a further sleeve The rocker arm ( 119 ), which is arranged on a disc around the axis of rotation and which is at an angle delimited in the slot of the disc by a pin on the rotary member, serves for the switchover Rotary link is lowered before it turns red Action member in turn moved to any stop (which can also lock the rocker arm). The set screw is swiveled from below into the horizontal. The sliding bar is pushed back to the right against the compression spring ( 30 ) by the link of the rotary member. (The side of the ellipse can be steeper and the lower edge of the sliding beam can be rounded). The functional stage shown on the right shows the state just before the shortened set screw swings in. In the gap or sector interruption of the rotary member, under the influence of the spring ( 30 ), the end of the sliding bar ( 256 ) will quickly move the deflection pin to the left. If the device is unsuccessful, the patient can perform an extended cutting movement by lowering the rocker arm without interrupting the suction in the suction cup.

FIG. 15 shows the systematic rounding the due solutions, another variant to avoid pressure staues for the patient in the final phase of lowering the cover flap. The tilting plate ( 120 ) is fastened to a plunger which extends through a hole in the cover flap ( 15 ) and ends on both sides with rectangular side wings ( 121 ). The latter are fitted into a central slot in a slide, which in turn can be lowered in the drawer guide ( 122 ). An elbow extends from the tilting plate, which flaps on the lid in the vicinity of a gap in the lid. When the tilting plate is pressed, the strong compression spring ( 70 ) is first tensioned until the trigger plate ( 53 ) engages. Both the slide in the drawer guide and the wings in the slot of the slide are lowered until the wings reach a slot extension, whereupon the tilting plate can lower to the right. The elbow can also pass through the gap in the lid flap. The right end of the tilt plate lowers the switching plunger shown with end rollers, which acts on the wedge plane of the sliding beam ( 232 ) and moves it to the left.

Without requiring a concentration of force at the end of the lowering of the cover flap, bellows folding in the first phase - supported by weak return springs (not shown here) - can release the grid as a pulse generator, as in the example in FIG. 1, with the wedge plane for displacement The sliding bar can also be selected as a mirror image, displacing the sliding bar to the right when the spring tension is applied. This saves a second sliding beam, as the beam pushing mechanism leaves the wedge plane early.

The Fig. 16, in combination once again many elements of this invention into a body of flat and less common type bag with a single preparation button, namely, by lowering the cover flap together.

Above, a functional sketch in natural size is reproduced in longitudinal section, which incorporates the rod guide as essential elements of the approach of FIG. 2.

The push rod ( 123 ) moves within the hole in the axle bushing of the column ( 26 ). Your one (here long) arm is fixed to the cover flap ( 15 ), the free other is directed against an angular surface on the sliding bar ( 232 ), which is shifted to the left (dashed line) in its recess by the grid with an elastic tongue. (The position of the latching tongue corresponds to the stage in front of the engagement.) The individual stages of the pivoting of the bars have an angular distance of 12 degrees; one recognizes that at the beginning of the lowering of the lid flap the main pushing action already occurs, while such a movement is missing at the end.

In the longitudinal section detail below, the push rod ( 123 ) is contoured as such and its guidance in a collecting trough at the end of the cover flap is illustrated. The push rod ends in a roll to reduce the friction relative to the angle of the push bar ( 232 ). The representation of the suspension of the spring ( 30 ) between the sliding bars before their compression is schematized. (Instead of the angle hook of the sliding bar ( 232 ), this can be extended at this point, but this would have made the demonstration more difficult). In the recess of the (dashed Darge) sliding bar ( 256 ), the grid is latched by means of its tongue from the start. Its arrangement opposite to the grid for the sliding beam ( 232 ) corresponds to that of the opposing moment of motion between the ends of the spring ( 30 ) on the two sliding beams.

Below the two longitudinal section details is a top view on a scale of 2: 1. The push rod ( 123 ) pushed diagonally through the column, which (without depicting the roller) acts on the end of the push bar ( 232 ) and thereby counteracts the spring ( 30 ) the sliding bar ( 256 ) fixed in the recess (black) tensions.

The details in the middle of the page show a safety edge ( 124 ) on the left in the side view, which - as can be seen in the vertical section on the left - extends from the cover flap ( 15 ) downwards. The safety edge has a switching knob, which can be moved along a (shown in dashed lines) and - by a counter nut when the screw is pulled through - can be adjusted to adjust the triggering of the pulse generator to different suction strengths, ie bellows expansions. When the safety edge with the cover flap is raised, the control knob lifts the grid out of its seat in the recessed recess by pushing against its cross plate (right in vertical section, see also Fig. 9 top right and Fig. 5). The safety edge or safety edges for the two grids of the sliding beams are also arranged on the side of the deflection pin on the roof sleeve ( 65 ) (see cross section below).

At least after triggering the grid for the sliding bar ( 256 ), the shift knob overtakes the cross-bar, which avoids it with its elasticity.

A short pin ( 125 ), which extends from the cover flap and acts against a lateral wedge on the respective sliding bar, is suitable for returning the two sliding bars, pushing it back to the right. This happens only in the last phase of the bellows compression, so that the short pin or pins from the lid quickly leave their sphere of influence on the sliding bar or bars when the lid flap is lifted. (Schematic detail next to the glucometer drawn in longitudinal section again. The more cumbersome overtaking gesture for the same task in FIG. 11 can be avoided in this way).

The return mechanism for the deflection pin ( 118 , bottom in cross section) is analogous, the tongue of the cover flap ( 15 ) which is guided up to the suction bell being illustrated again on a scale of 2: 1. In longitudinal section, the pin ( 126 ), which has turned it back on a wedge bevel of the roof sleeve in the final stage of the lowering of the lid flap. Next to it on the right is the detail of approximately natural size, which relates to the left shift of the trigger plate ( 53 ) by lowering the start button ( 24 ) - double with a transverse connecting plate. The re-cutting mechanism with the rotary member ( 117 ) corresponds to that in FIG. 14. It should be expressly stated here, correcting an unfortunate expression in the main patent, that with "cutting movement" or "cutting extension" movements of the puncture tip through the respective apparatus what was meant was that the actual cut effect in the skin only needs to be a fraction of a millimeter to open a larger capillary.

The spring ( 30 ) is designed as a leaf spring on the cross section.

On the longitudinal section, the bellows must be guided inside a large telescopic sleeve (thick double lines) should be mentioned, which are replaced by a kind of side posts with rollers can contribute to a slight injury due to unilateral compression avoid lowering the lid flap.

Only on the left-hand side was a longitudinal bore ( 128 ) of the suction bell extended there, into which the holding clip for the glucometer ( 12 ) can be pushed back. (Of course it is double-sided). The glucometer is transverse to the longitudinal axis of the puncture device with its axis and is preferably used as a handle when the suction bell is placed on the skin. (For the security of the connection, an additional spring band can be guided around the glucometer from the suction bell. The construction of FIG. 16 can also be combined with a "vibrating lancet" according to FIG. 3-11, that is, it can be varied. Also the blood is obtained on the test strip outside of a measuring device, i.e. without being connected to such a device, for example for blood coagulation tests in measuring devices that are already commercially available, and for other chemical determinations. If a "vibrating lancet" is used, the suction cup can then be sealed in the slot of the fastening ringes ( 757 , Fig. 6, 7).

The hatching direction change in the longitudinal section between the suction cup and the suction cup roof with the sealing ring around the cylinder part of the test tire ( 103 ) is actually not justified, since there is only one part (in which, however, the metal ring of the suction cup - metals due to the oligodynamic effect against bacteria - can be shifted in height according to the figure . 9 center is screwed). The roof sleeve ( 65 ) is namely interrupted in its horizontal right edge part just as sector-like as the part of the suction bell lying above it, which facilitates assembly (not shown). The sleeve ( 129 ) has a bottom part with a slot for the insertion of the test strip; it maintains the distance between the glucometer and the hexagon of the end part of the test strip and only enables it to be inserted into the suction cup roof without complications, since the test strip itself is flexible. (If it is rigid, the glucometer must follow the sector movement and must be stored accordingly and not suitable as a handle).

In the middle right the detail of a variant of a test strip packaging. The test tire is wrapped around the test field or fields and has a side cap which surrounds the puncture tip for protection. The sterile, tight-fitting packaging envelope has been omitted. On the left a (here hexagonal) thin steel sheet from which the puncture tip was bent out. It lies on the test field away from the puncture tip. The current conductors are led into the test strip through the slot by bending the tip downwards. Copper-plated, for example, the sheet can serve as a neutral conductor. The sleeve ( 129 ) for introducing the test strip is then to be provided with an edge notch for inserting the cap on the test strip, which also facilitates the insertion of the end of the test strip into the glucometer shaft.

Who the range of puncture devices I presented this Considered type, will agree with me that because of the Demand for maneuverability is most likely a feather voltage parallel to the suction cup axis for both Pump function as for the impulse for the transverse movement of the Puncture tip comes into question. The handling should, however include as few handles as possible. This special However, the task required considerable additional inventive effort that I wanted to document and protect.  

. To 16 It should be added that the feed of the push rod (232) by the rod of the cover plate of the rear shift and the shift rod (256) without the yes at closure of the lid - and then additional - undesirably high force required to tension the spring (30 ) impossible impossible. In detail in the lower right, a solution is shown schematically in longitudinal section, in which the return from the lower edge of a wedge bevel on the sliding bar takes place when the telescopic rod ( 130 ) is lifted from the cover plate in its last lifting phase.

Fig. 17 shows a highly schematic above in 2: 1 scale in detail and below in simplified longitudinal section in natural size on a solution in which the sliding strips are arranged vertically. In our example, the edge of the lid flap or plate ( 15 ) meets the sliding bar ( 232 ) in its rail guide ( 131 ). When it is lowered, the spring ( 30 ) is tensioned because the sliding bar connected to the opposite end of the spring is held in place by the grid with the tongue. The sliding bar ( 232 ) is locked in turn after lowering. The cross pin ( 132 ) acts on the wedge edge of the slide, which acts as a pulse generator deflection pin ( 118 ) of the roof sleeve and thus rotates the puncture tip. However, this only happens after the hook ( 133 ) has pulled out the left grid from below when lifting the cover plate. When lowering the hook, it can overtake the elastic tongue on the grid. In the final phase of the cover plate lifting, the cable pull ( 134 ) releases the right grid via the roller on the column ( 26 ) and finally the spring-loaded cable pull ( 135 ) lifts the push bar ( 256 ) back to the starting position. Many of the previous designs can be transferred to this other sliding beam arrangement and should also be protected with such a variation. In addition, elliptical curve profiles and rod guides can also replace each other, as can rod and wedge guides at all and often telescopic rods and train connections (see the preferred grid solution last).

The Fig. 17 would be indicated with regard to the idea of this invention incomplete without a solution of the distribution of force between the two springs during lowering of the top panel. In the detailed sketch at the top left, therefore, while omitting what is already known, the push rod ( 123 ) is provided between the cover plate ( 15 ) and the wedge ( 136 ) which can be moved along the column ( 26 ) fixed on the base plate, the wedge surface of which is the sliding bar ( 232 ). - With swivel connection to these - against the (not shown) spring ( 30 ) and this mainly in the first phase of lowering the cover plate, in which the back pressure of the spring for the suction pump is not so important.

The detailed sketch on the top right gives an alternative solution, also in longitudinal section. The fixed column ( 26 ) behind the sliding bar ( 232 ) has the S-shaped slot guide ( 137 ), in which a pin inserted through the slot guide and then widened by the rivet head on the tab ( 138 ) on the rear of the rod ( 123 ) is attached, the deflection of which to the right results in its articulated fastening on the cover plate ( 15 ) and thus the tip of the rod past a pushing section in relation to the sliding bar on the latter for further lowering of the cover plate. The track lengths and contact edges can be adjusted according to needs. Return spring ( 140 ). A third alternative is the detailed sketch to the left of the drawing next to the full longitudinal section in natural size (while the detailed sketches are on a 2: 1 scale).

When lowering the cover plate, the rounded tip of the fixed pin ( 139 ) acts on the inclined sliding bar, the rail guide of which has been omitted. The dashed outline corresponds to that for the determination of the sliding bar ( 232 ) in its grid - only the locking trough is shown - he required push distance, according to which the pin and thus the cover plate can be lowered further past the sliding plate.

Claims (35)

1. A device for puncturing the skin of a living being for blood collection, consisting of a suction cup, a suction pump and a test strip, preferably in conjunction with a measuring device for metabolically significant changes, with a puncture tip and means for its jerky movement across the skin surface after the puncture , characterized in that there is at least one part which is moved against at least one spring and, after latching, serves as a pulse generator for the lateral displacement of the puncture tip in the skin, with at least one cover plate also being present as a functional member which is lowered parallel to the suction bell axis and the suction pump is set to standby under tension of at least one spring, at least one further spring also being tensioned by the movement parallel to the suction bell axis for the function of the pulse generator, preferably in a coherent operating movement, after which by further means the functions run largely automatically, and at most the triggering of the suction pump function can also take place transversely and / or a widening of the cut after an unsuccessful first impulse transversely to the axis of the suction cup, a device for widening the cut while the skin is still sucked in is preferably present and further parts for a safe clean handling with a flat and pocket-friendly design. 2. Institutional procedure for measurement Metabolic changes in the body of a living being by collecting blood from the skin of this living being Suction of the skin by means of a suction pump in a suction cup, Puncture using a puncture tip, its jerky and route-coordinated movement of this puncture tip transversely to the skin surface is achieved by a pulse generator, wherein this puncture tip preferably in the vicinity of at least one measurement-relevant test field on an exchangeable carrier is attached, which is preferably directly with a measuring device in Is connected characterized, that at least two springs for the automatic process of Function of the suction pump and the pulse generator by moving at least a part in close spatial relationship to the suction bell or suction pump, clamped parallel to the axis of the suction bell and the other functions after appropriate triggering activate at least one of these springs and make them work hold, preferably in a single directional clamping movement and preferably other means for a flat or at least pocket-friendly design and simpler, safer and hygienically perfect handling, preferably also of Test strip in a preparatory act for the puncture degrading functioning. 3. Device according to claim 1 characterized, that especially in the first movement phase of lowering one Cover plate as part of a spring parallel to the Suction cup axis is moved between the cover plate and one Sliding bar effective as a functional link lever transfer becomes,  preferably between the cover plate and sliding bar connecting joints are present at the rod ends. 4. Device according to claim 1 and 3, characterized, that the rod by a joint on one on the Fixed column housing laterally displaceable in this joint to be led. 5. Device according to claim 1 and 3, characterized, that at least one when moving the slide bar Spring is tensioned, which gives the impulse for the cutting movement the puncture tip serves as a source of power. 6. Device according to claim 1, characterized, that there are two sliding strips and at least one of them exciting feathers with each of their ends on each of these Slider strips is attached, with power transmission at the Lowering the cover plate as part that is parallel to the suction bell axis is moved, which is a sliding bar under tension the spring is moved and then locked while the second Sliding bar as an at least indirect impulse generator by one second grid before the effectiveness of the power transmission determined and before solving the first grid for the movement the puncture tip is triggered across the skin. 7. Device according to claim 1 and 5, characterized, that the power transmission of at least one on the cover plate a sliding bar.   8. Device according to claim 1 and 7, characterized, that the profile of the wedge guide is partially elliptical Curve with increasing descent towards the Has lowering movement of the cover plate to the Shifting force to the first phase of movement. 9. Device according to claim 1 and characterized, that the side shift of a sliding bar, caused by one at the Cover plate attached functional member in the final phase of Lowering of the cover plate under the tension ring of the spring for the The pulse generator takes place and the sliding bar locks into place Tension of the spring for the pulse generator resulted in a Functional element on the cover plate during its lifting over a Functional element is triggered again from the cover plate. 9. Device according to claim 1, 3 and 7 characterized, that the return movement of the sliding bar for the pulse generator until it locks into the waiting position before the cut movement of the puncture tip via a power transmission from the Cover plate from especially in the final phase of raising it he follows. 10. Device according to claim 1, characterized, that raising the top plate as a part against a spring is moved parallel to the suction cup axis by a pre-adjustable connecting part to a fixed part can be limited to the maximum suction strength of the suction pump limit.   11. The device according to claim 1, characterized, that a second suction pump is present, which is against a spring ready for operation by lowering a second cover plate brought shaft and function separately from the first suction pump can be triggered. 12. Device according to claim 1, characterized, that within a hinge for lowering the Cover plate in a moving part a grid member is provided, which is used to trigger and release a grid Movement in the hinge joint by retraction of the grid link a hole in the moving part is withdrawn, preferably parallel in a bore of a part moved to trigger the grid and adjacent to the moving part. 13. Device according to claim 1 and 12, characterized, that between the part moved with the cover plate and the adjacent moving part in the area of a hinge joint fixed bore for the permanent storage of part of the Locking element is located and on the fixed bore opposite side of the further moving part another Part under spring tension is movable in one direction from which a pin in the one bent around the axis of the hinge joint Elongated hole extends and the grid member from the second Elongated hole in the moving limb, blocking the other displaced limb.   14. Device according to claim 1, characterized, that as at least one grid with plastic molded locking head that serves on the elastic tongue or material-thinned part in the recess of a sliding bar protrudes and by lifting by another functional part is triggered. 15. Device according to claim 1, characterized, that as at least one grid with plastic molded locking head, which is used on the elastic tongue or thinned part with a hole in the locking head in a pen protrudes on a sliding bar and by lifting is triggered by another functional part. 16. Device according to claim 1, characterized, that that as a grid at least one functional link with telescope function, which has one end on the cover plate is attached. 17. Device according to claim 1, characterized, that to snap the cover plate against a spring tensioned when lowered, one in a rail guide in a fixed part transverse to the suction cup axis slidable plate which has at least one opening has which thickenings at the end of an associated at the Passes through the cover plate attached pin and, by displacement  is locked by spring force, the triggering this Grid by the movement of the slidable plate against the suspension of which is preferably made as a curved tongue this plate is worked out and on a fixed part comes to the plant. 18. Device according to claim 1, characterized, that on the cover plate as part that moves against a spring is attached, a functional member that during the final phase the lowering of the cover plate a rotating around the suction bell Sleeve for the movement of the puncture tip into one by one Stop for the sleeve movement defined starting position back transferred. 19. Device according to claim 1, characterized, that when performing the cutting movement through the puncture tip in a deflection plane for the introduction of the test strip at least one spring is provided in the suction bell, which the inner wall of the suction bell originates inside the suction bell near the level of through seals in the suction cup performed plunger and counter plunger the central position of the Test strip in contact with this secures in the suction cup. 20. Device according to claim 1, characterized, that a kind of hammer of curved shape around a fixed one Axis is rotatably arranged so that a sliding bar as  Pulse generator on one end of the hammer in the transverse direction Suction cup axis but acting past the suction cup, the gives the other end of the hammer a movement impulse that perpendicular to the sliding bar movement in the direction of the Ram is redirected to this. 21. Device according to claim 1, characterized, that a recut after insufficient depth of cut after the first Functional trigger for a puncture tip that is in one plane is deflected to the cutting movement, thereby causing the Adjusting screw for the counter plunger in a slidable Bush is supported by a wedge-shaped retreating bridge is held on a slide, the displacement of which Allows the counter-plunger to withdraw from the suction cup, preferably with limitation of the withdrawal movement of the Counter plunger by another set screw in this bridge. 22. Device according to claim 1, characterized, that a wedge-shaped receding slide that on the Sliding book for the adjusting screw of a counter tappet acts in such a way with the end of the counter plunger or the bushing is connected that its shift can be used the counter plunger during the insertion of the test strip to withdraw its middle position in the suction cup, what for preferably the movement of the slide with the retracting movement the sliding bar in conjunction with the impulse sliding bar encoder, i.e. the one that is moved to spring tension first, is coupled.   23. Device according to claim 1, that a recut after insufficient depth of cut after the first Functional trigger for a puncture tip that is in one plane is deflected to the cutting movement, thereby causing the Set up a rotating part opposite the end of the slide has bar for the pulse generator, which by means of rotation Hand lever against a suspension against the sliding bar directed and their displacement limiting screw from the Swings out alignment to the axis of the sliding bar and a second screw temporarily into the alignment position of the the former brings which a larger path of the sliding bar allows, with a curve during the tilting movement on the lever on the rotary part in this way to the end, preferably to one Edge protrusion at the end, the sliding bar acts the same is pushed back against his pen and by sudden Slump in the curve due to a segment gap jerky encounters the pulse generator for the puncture tip. 24. Device according to claim 1, characterized, that a test strip or stylus as a carrier of at least one Test field with measuring reagents and the puncture tip in the area, which on the final stretch of its introduction to a measuring device corresponds on all sides at least with relative elasticity one of the adjacent structures is an all-round light Tapered, which seals the shaft entrance of the measuring device.   25. Device according to claim 1, characterized, that a test strip or stylus as a carrier of at least one Test field with measuring reagents and the puncture tip in the area, softer on the final stretch of its introduction into the opening a mounting ring that holds the suction bell in its roof area seals, on all sides at least with relative elasticity one of the adjacent structures is an all-round light Has taper, which seals the opening in the Fixing ring causes. 26. Device according to claim 1, characterized, that a support sleeve for sliding onto the end of a Test strip in the opening of a transverse wall thereof, whereby the insertion of the part with the puncture tip into the Suction cup and preferably also the introduction of the other Test tire end in the shaft of a measuring device is facilitated. 27. Device according to claim 1, characterized, that the end of the test strip is wrapped in some kind of sheath which may also be after removing another outer packaging sleeve, in the direction away from the puncture tip can be removed in the opposite direction to the rest of the test strip, preferably for a puncture tip transverse to the length of the Test strip with a wall thickening of the packaging envelope a rail-like slot is provided, in which the The puncture tip remains protected without contact.   28. Device according to claim 1, characterized, that the test tire with its thickened end at least one test field and the puncture tip within one outer packaging sleeve around this thickened part is wrapped around, preferably on the side of the test strip, a cap is present which keeps the puncture tip from touching protects. 29. Device according to claim 1, characterized, that at least one sliding bar parallel to the suction cup axis is arranged and is connected to at least one spring, which is tensioned with the lowering of the cover plate and for Movement of the pulse generator is determined after a grid at least one functional element in connection with the cover plate triggered when raised. 30. Device according to claim 1, characterized, that the trigger grid for those acting on the pulse generator Sliding bar adjustable in terms of triggering in relation to the respective height of the cover plate and thus suction force of the Suction pump is. 31. Device according to claim 1 and 29, characterized, that a push rod articulated between the cover plate and a wedge gate valve is arranged in the direction along the Cover plate level is shifted when lowering and with his wedge surface a sliding bar under tension on her attached spring displaced downwards.   32. Device according to claim 1 and 29, characterized, that a rod is attached to a joint on the cover plate, which pushes its other end against a sliding bar and this under tension of a spring which is attached to the latter at their lowering takes a distance which the latter takes a groove guide is determined in a support column, in which a pin guide from one reaching down over the rod end but engages attached to it, being a side Deflection of the tab by the groove guide also causes the Rod to further lower the cover plate the sliding plate leaves. 33. Device according to claim 1 and 29, characterized, that a pin is firmly attached to the cover plate and with his End on a sliding bar mounted at an angle to the lowering axis meets and after a predetermined push distance past this can be further lowered. 34. The method according to claim 2, characterized, that in the power transmission from a cover plate to a Sliding bar, which is the spring tension for the pulse generator mediated, the transmission parts are arranged so that with regard to the necessary effort for the lowering the cover plate the effort for the tension of at least two Springs, namely at least one for operating the Suction pump and at least one for the pulse generator for the jerky movement of the puncture tip across the skin essential part of the springs for one of the two functional groups in the first half of the lowering movement of the cover plate at least mainly excited.