Abstract: Mechanical pipette with adjustable volume value of aspirated liquid is built of a handle (1) and a nozzle (3) and coupled with them: an ejection mechanism of a pipette exchangeable tip (8), a drawing up and discharging mechanism with a plunger (33) mounted in said pipette nozzle (3), a plunger working stroke adjustment mechanism, a manually actuated lock mechanism of a drive assembly of an adjustment screw of the plunger working stroke, a mechanical counter, a drive mechanism of a mechanical counter and a calibration mechanism for correction of the pipette accuracy deviation. The calibration mechanism comprises, mounted in the mechanical counter, releasable coupling means for complete disengagement of a revolvers assembly from the mechanical counter drive mechanism in CALIBRATION MODE, further, engaged with them, changeover means for changing over the pipette into CALIBRATION MODE and resetting means of the indication of the liquid volume value on the counter in CALIBRATION MODE.

Abstract: Pipette with adjustable volume of aspirated liquid built of a handle (1) and of a nozzle (3) and of coupled with them: an exchangeable pipette tip ejection mechanism, a drawing up and discharging mechanism with a plunger (12) arranged in said pipette nozzle (3), a plunger working stroke adjustment mechanism with at least one driving member (16), a manually actuated lock mechanism locking a drive assembly of an adjustment screw of a plunger working stroke, an engaging mechanism which engages said plunger working stroke adjustment mechanism with a counter (14) of an aspirated liquid volume by said pipette, a calibration mechanism for a change of a pipette calibration coefficient, whereas said driving member (16) of said drive assembly of said adjustment screw of the plunger working stroke is accessible from outside through at least one window (38) in a wall of said handle (1), said pipette is characterized in that said lock mechanism of said drive assembly of said adjustment screw of the plunger working stroke

Abstract: Mechanical pipette with adjustable volume value of aspirated liquid is built of a handle (1) and a nozzle (3) and coupled with them: an ejection mechanism of a pipette exchangeable tip (8), a drawing up and discharging mechanism with a plunger (33) mounted in said pipette nozzle (3), a plunger working stroke adjustment mechanism, a manually actuated lock mechanism of a drive assembly of an adjustment screw of the plunger working stroke, a mechanical counter, a drive mechanism of a mechanical counter and a calibration mechanism for correction of the pipette accuracy deviation. The calibration mechanism comprises, mounted in the mechanical counter, releasable coupling means for complete disengagement of a revolvers assembly from the mechanical counter drive mechanism in CALIBRATION MODE, further, engaged with them, changeover means for changing over the pipette into CALIBRATION MODE and resetting means of the indication of the liquid volume value on the counter in CALIBRATION MODE.

Abstract: Pipette with adjustable volume of aspirated liquid built of a handle (1) and of a nozzle (3) and of coupled with them: an exchangeable pipette tip ejection mechanism, a drawing up and discharging mechanism with a plunger (12) arranged in said pipette nozzle (3), a plunger working stroke adjustment mechanism with at least one driving member (16), a manually actuated lock mechanism locking a drive assembly of an adjustment screw of a plunger working stroke, an engaging mechanism which engages said plunger working stroke adjustment mechanism with a counter (14) of an aspirated liquid volume by said pipette, a calibration mechanism for a change of a pipette calibration coefficient, whereas said driving member (16) of said drive assembly of said adjustment screw of the plunger working stroke is accessible from outside through at least one window (38) in a wall of said handle (1), said pipette is characterised in that said lock mechanism of said drive assembly of said adjustment screw of the plunger working stroke

Abstract: A patient's skin puncturing device according to the present invention is built of a body and of seated therein a pricking needle assembly and of a push-button arranged in the upper portion of the body. Between the push-button and the pricking needle assembly at least two driving springs are arranged. The driving springs are connected by upper ends with the push-button provided with a pushing face. Between the body and the pricking needle assembly at least two return springs are disposed, which are connected with the body. The pricking needle assembly has a driving face cooperating with the pushing face of the push-button, and in the upper portion has wings which upper surfaces cooperate with the driving springs of the push-button and which lower surfaces cooperate with the return springs, and has outer projections cooperating with inner projections with which the body is provided.

Abstract: A patient's skin puncturing device, particularly for collecting a blood sample for diagnostic purposes, including a housing, a lancet slidably positioned inside the housing and having a body with a sheathed puncturing needle seated therein, and a push button positioned at the one end of the housing. Between a face end of the push button and the lancet body a drive spring is placed, and between the other end of the housing, which is provided with an opening for the puncturing needle, and the lancet body a return spring is placed. Between the housing and the lancet body is placed a lancet actuation lock, preferably in the form of interlocks of a washer. The device has a drive spring catch, preferably in the form of grabs of the washer, to preclude the drive spring from following the lancet in the puncture phase and in the retraction phase of the lancet.

Abstract: Pipette with adjustable volume of aspirated liquid built of a handle (1) and of a nozzle (3) and of coupled with them: an exchangeable pipette tip ejection mechanism, a drawing up and discharging mechanism with a plunger (12) arranged in said pipette nozzle (3), a plunger working stroke adjustment mechanism with at least one driving member (16), a manually actuated lock mechanism locking a drive assembly of an adjustment screw of a plunger working stroke, an engaging mechanism which engages said plunger working stroke adjustment mechanism with a counter (14) of an aspirated liquid volume by said pipette, a calibration mechanism for a change of a pipette calibration coefficient, whereas said driving member (16) of said drive assembly of said adjustment screw of the plunger working stroke is accessible from outside through at least one window (38) in a wall of said handle (1), said pipette is characterised in that said lock mechanism of said drive assembly of said adjustment screw of the plunger working stroke

Abstract: A patient's skin puncturing device, particularly for collecting a blood sample for diagnostic purposes, comprises a housing (1), a lancet slidably positioned inside the housing (1) and having a body (3) with a sheathed puncturing needle (4) seated therein, and a push button (2) positioned at the one end of the housing (1). Between a face end of the push button (2) and the lancet body (3) a drive spring (5) is placed, and between the other end of the housing (1), which is provided with an opening (Ia) for the puncturing needle (4), and the lancet body (3) a return spring (7) is placed. Between the housing (1) and the lancet body (3) is placed lancet actuation locking means, preferably in the form of interlocks (6b) of a washer (6). The device has drive spring catching means, preferably in the form of grabs (6a) of the washer (6), to preclude the drive spring (5) from following the lancet in the puncture phase and in the retraction phase of the lancet.

Abstract: Lancet, in particular for a patient's skin puncturing device for collecting a blood sample for diagnostic purposes, is comprised of the body (1) made of plastic material, in which the needle (2) is coaxially fixed. the tip (3) of the needle (2) is covered by the sheath (4) moulded together with the body (1) and breakably connected therewith. The lancet has additional coaxial with the body (1) and the sheath (4) the guiding member, which is slidably mounted on the guiding member, which is slidably mounted on the guiding segment (5) of the body (1) and is immovably affixed to the sheath (4). The lancet, according to the present invention, insures the required sterility of the tip (3) of the needle (2) and, simultaneously, precludes the tip (3), in particular, in case of the needle of small diameter, from damage during the removal of the sheath (4) from the needle tip (3) before use of the lancet.

Abstract: In the method of pipette calibration, the volume of liquid to be aspired is manually set by turning in and out the adjustment screw regulating the length of the operational stroke of the plunger inside the shaft, the position of the adjustment screw is detected, and a signal corresponding to the position of the adjustment screw is sent to the pipette electronic system, and next the signal corresponding to the position of the adjustment screw is compared with values of points from the aspiration table or values of the aspiration function, which has been earlier input to the memory of the electronic system correspondingly as the standard aspiration table or aspiration function for the pipette, and next to the position of the adjustment screw, the value of the aspired liquid volume is assigned, and displayed on the display.

Abstract: The device for puncturing comprises a sleeve (1), a push element (2) mounted on one end of the sleeve (1), a piston (5) with a puncturing tip (8) slidably mounted inside the sleeve (1), and a drive spring (10) positioned between a face (9) of the push element (2) and the piston (5), wherein the push element (2) comprises turnably mounted thereto a setting element (41) of the patient's skin piercing force having inwardly directed stair shaped members (42, 43) pressing the push rod (6) of the piston (5) in operation.

Abstract: Pipette tip container comprises a base for setting a tray (19) with tips (21) and a cover being a tray feeder (2), wherein two opposite elastic side walls of the feeder (2) have on their inner side wedge-shaped projections (31, 32) for the tray (19) with tips (21).