Micropipettor for medical experiment

Abstract

The utility model belongs to the technical field of micropipettors, and discloses a micropipettor for medical experiments, which comprises a pipetting piece, the bottom of the pipetting piece is connected with a liquid storage piece, the liquid storage piece comprises a first pipe fitting part and N detachably connected second pipe fitting parts, N is greater than or equal to 1, one end of each second pipe fitting part protrudes outwards and is fixedly connected with a connecting pipe, and the other end of each second pipe fitting part is fixedly connected with the connecting pipe. The end, away from the second bottom pipe, of the connecting pipe is detachably connected with the first bottom pipe, the bottom of the first pipe fitting part and the bottom of the second pipe fitting part are each provided with a connecting part used for being connected with a suction head, and the connecting parts communicate with the interiors of the first bottom pipe, the second bottom pipe and the pipetting piece. The connecting pipe is connected with the connecting groove in the other second pipe fitting part in a screwed mode, the second pipe fitting parts with the number needed by personnel are connected, the connecting pipe is connected with the first pipe fitting part, and therefore the number of the connecting parts connected with the suction head is adjusted, and the use range of the device is widened.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of micro pipettor, specifically relates to a micro pipettor for medical experiment. BACKGROUND

[0002] In the medical experiment field, especially in molecular biology, biochemistry and clinical examination, it is often necessary to accurately take micro liquid. The equipment that can realize accurate micro liquid taking, namely micro pipettor, has certain defects when using the existing micro pipettor, although the micro pipettor can carry out pipetting operation, that is, in the Chinese patent with the announcement number "CN 221208127 U", a micro pipettor for medical experiment is disclosed, which comprises an outer cylinder, a pressing rod, a pipetting suction head and a pipette, characterized in that: the top end of the pressing rod is fixedly installed with a pressing base, the pressing base is provided with an installation groove with an opening upward, a buffer assembly is installed in the installation groove, the bottom of the buffer assembly is fixedly installed at the bottom of the installation groove, and the top of the buffer assembly is fixedly installed at the bottom surface of the pressing block. The device can pipette, a plurality of same pipettes are arranged at the bottom of the connecting piece, and the rate of extracting micro liquid can be increased, but the number of suction heads of the device is fixed, pipetting operation cannot be carried out according to actual demand, so that multiple repeated steps are needed, and the spacing of the suction heads of the device is fixed, and the spacing of the suction heads cannot be adjusted according to the spacing of containers. SUMMARY

[0003] The utility model aims at providing a micro pipettor for medical experiment to solve the problems in the above background technology.

[0004] In order to achieve the above object, the utility model provides the following technical scheme: a micro pipettor for medical experiment, which comprises a pipetting piece, a liquid storage piece is connected to the bottom of the pipetting piece, the liquid storage piece comprises a first pipe part and N second pipe parts which can be detachably connected, N is greater than or equal to 1, one end of the second pipe part is fixedly connected with a connecting pipe outward, the other end is formed with a connecting groove matched with the connecting pipe inward, the end of the connecting pipe away from the second bottom pipe is detachably connected with the first bottom pipe, the bottom of the first pipe part and the second pipe part is provided with a connecting part for connecting the suction head, and the connecting part is in communication with the first bottom pipe, the second bottom pipe and the interior of the pipetting piece.

[0005] Preferably, the first pipe part comprises a first bottom pipe, and one side of the first bottom pipe towards the second pipe part is formed with a first connecting groove matched with the second pipe part inward.

[0006] Preferably, the second pipe part comprises a second bottom pipe, a connecting pipe is fixedly connected to one side of the second bottom pipe outward, the other end is formed into a second connecting groove, the connecting pipe is matched with the first connecting groove and the second connecting groove, and a sealing cover is screwedly connected to the side of the second connecting groove away from the second bottom pipe.

[0007] Preferably, the connecting part comprises a first connecting head and a second connecting head for connecting the suction head.

[0008] A first soft pipe is fixedly connected between the top of the first connecting head and the first bottom pipe, and a second soft pipe is fixedly connected between the top of the second connecting head and the second bottom pipe.

[0009] Preferably, the bottom of the first connecting head and the second connecting head is provided with a sealing ring.

[0010] Preferably, the pipette comprises a pipette body, the top of the pipette body is provided with an operating handle, the bottom of the pipette body is fixedly connected with a liquid suction head, and the bottom of the liquid suction head is fixedly connected to the top of the first bottom pipe.

[0011] Preferably, one side of the pipette body is formed into an observation window, and the inside of the observation window is provided with a scale mark.

[0012] Preferably, the bottom of the first bottom pipe is fixedly connected with a first bottom frame, the bottom of the first bottom frame is provided with a first bottom groove in a penetrating mode, the inner wall of the first bottom groove is fixedly connected with two first guide plates in a symmetrical mode, a first sliding plate is slidably connected between the two first guide plates, and the first connecting head is fixedly connected to the first sliding plate in a penetrating mode.

[0013] Preferably, the bottom of the second bottom pipe is fixedly connected with a second bottom frame, the bottom of the second bottom frame is provided with a second bottom groove in a penetrating mode, the inner wall of the second bottom groove is fixedly connected with two second guide plates in a symmetrical mode, a second sliding plate is slidably connected between the two second guide plates, and the second connecting head is fixedly connected to the second sliding plate in a penetrating mode.

[0014] Preferably, one side of the pipette body is fixedly connected with a handle, and one side of the pipette body is further fixedly connected with a rubber pad, and the rubber pad is below the handle.

[0015] Compared with the prior art, the pipette has the following beneficial effects:

[0016] (1) The connecting pipe is screwedly connected with the connecting groove on the other second pipe part, the number of the second pipe parts required by personnel is connected, and the connecting pipe is connected with the first pipe part, so that the number of the connecting parts connected with the suction head is adjusted, the pipette can be used for pipetting operation according to the requirement, the pipetting efficiency is improved, and the use range of the pipette is improved.

[0017] (2) When the number of the first bottom pipe and the second bottom pipe is adjusted, the first slide plate and the second slide plate are pulled to slide on the first guide plate and the second guide plate respectively, so that the distance between the first connecting head and the second connecting head is adjusted, the distance between the suction heads of the device is adjustable, the device can be adjusted according to the distance between the containers, and the use range of the device is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is one of the perspective views of the utility model;

[0019] Figure 2 It is the second perspective view of the utility model;

[0020] Figure 3 It is the third perspective view of the utility model;

[0021] Figure 4 It is the fourth perspective view of the utility model;

[0022] Figure 5 It is one of the perspective views of the liquid storage part of the utility model;

[0023] Figure 6 It is the second perspective view of the liquid storage part of the utility model;

[0024] Figure 7 It is the explosion view of the liquid storage part of the utility model;

[0025] In the figure: 1, handle; 2, pipette body; 3, observation window; 4, liquid suction head; 5, liquid storage part; 51, first bottom pipe; 52, second connecting head; 53, connecting pipe; 54, first bottom frame; 55, first bottom groove; 56, first guide plate; 57, first slide plate; 58, first hose; 59, second slide plate; 510, second hose; 511, second bottom groove; 512, second guide plate; 513, second bottom pipe; 514, sealing cover; 515, second bottom frame; 516, first connecting head; 6, handle; 7, rubber pad. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0027] Please refer to Figures 1-7 The utility model provides the following technical solutions:

[0028] The utility model provides a medical experiment micropipette, including pipette, the bottom of pipette is connected with liquid storage 5, liquid storage 5 includes first pipe part and N detachable connection second pipe part, N >=1, one end of second pipe part is fixedly connected with connecting pipe 53 outside convex, the other end is formed with the connecting groove matched with connecting pipe 53 inside concave, the one end of connecting pipe 53 away from second bottom pipe 513 is detachably connected with first bottom pipe 51, the bottom of first pipe part and second pipe part is provided with the connecting part for connecting suction head, and the connecting part is communicated with first bottom pipe 51, second bottom pipe 513 and the inside of pipette.

[0029] Through the above technical scheme, when personnel need to carry out pipetting operation, the second pipe part is connected with the connecting groove on another second pipe part through the connecting pipe 53, so that two second pipe parts are connected, and the number of second pipe parts required by personnel is connected according to the above steps, after the second pipe parts required by personnel are connected, the second pipe parts after length adjustment are connected with the first pipe part through the connecting pipe 53, then the device is aligned with the suction head to be installed, the device is pushed down, the connecting parts on the first pipe part and the second pipe part are connected with the suction head, after the device is connected with the suction head, the pipetting amount of the pipette is adjusted, the suction head is inserted into the container, the pipette is operated, the liquid is sucked into the suction head, the device is moved above another container, the pipette is operated, the liquid is discharged from the suction head, and the pipetting operation is completed.

[0030] Specifically, in an embodiment, regarding the above first pipe part:

[0031] As shown in the figure, Figures 1-7 The first pipe part includes a first bottom pipe 51, and the side of the first bottom pipe 51 towards the second pipe part is recessed to form a first connecting groove matched with the second pipe part.

[0032] In the embodiment, when the first pipe part and the second pipe part need to be connected, the second pipe part is connected with the connecting groove on another second pipe part through the connecting pipe 53, so that two second pipe parts are connected, and the number of second pipe parts required by personnel is connected according to the above steps, after the second pipe parts required by personnel are connected, the second pipe parts after length adjustment are connected with the first bottom pipe 51 through the connecting pipe 53 and the first connecting groove on the first bottom pipe 51, so that the second pipe parts after length adjustment are connected with the first bottom pipe 51.

[0033] Specifically, in another embodiment, regarding the above second pipe part:

[0034] As shown in the figure, Figures 1-7As shown, the second pipe part includes a second bottom pipe 513, a connecting pipe 53 is fixedly connected to one side of the second bottom pipe 513 outwardly, and the other end is formed into a second connecting groove inwardly, the connecting pipe 53 is matched with the first connecting groove and the second connecting groove, and a sealing cover 514 is screw-connected to the side of the second connecting groove away from the second bottom pipe 513.

[0035] In the embodiment, when the length of the second pipe part needs to be adjusted, the second bottom pipe 513 is screw-connected to the second connecting groove on another second bottom pipe 513 through the connecting pipe 53, so that two second bottom pipes 513 are connected, and the number of second bottom pipes 513 needed by the personnel is connected end to end according to the above steps, so that the length of the second bottom pipe 513 is adjusted.

[0036] In addition, in the utility model, how the connecting part is connected with the suction head is as follows: Figures 5-7 As shown, the connecting part includes a first connecting head 516 and a second connecting head 52 for connecting the suction head;

[0037] The first connecting head 516 is fixedly connected with a first flexible pipe 58 between the top and the first bottom pipe 51, and the second connecting head 52 is fixedly connected with a second flexible pipe 510 between the top and the second bottom pipe 513.

[0038] In the embodiment, the device is moved above the suction head, the first connecting head 516 and the second connecting head 52 are aligned with the suction head, and then the device is pressed down, so that the first connecting head 516 and the second connecting head 52 are moved downward, and the first connecting head 516 and the second connecting head 52 are inserted into the suction head, and the device is moved, so that the liquid is sucked and transferred through the suction head.

[0039] When the first connecting head 516 and the second connecting head 52 are connected with the suction head, in order to increase the air tightness of the connection, the bottom of the first connecting head 516 and the second connecting head 52 is provided with a sealing ring.

[0040] Specifically, in an embodiment, the pipette includes a pipette body 2, the top of the pipette body 2 is provided with a handle 1, the bottom of the pipette body 2 is fixedly connected with a suction head 4, and the bottom of the suction head 4 is fixedly connected to the top of the first bottom pipe 51.

[0041] In the embodiment, when the pipetting operation needs to be performed, the pipette body 2 is held, the pipette body 2 is moved above the container storing the liquid, the suction head is connected with the first connecting head 516 and the second connecting head 52, the pipetting amount of the pipette body 2 is adjusted through the handle 1, after the pipetting amount is adjusted, the suction head is inserted into the container, the liquid is sucked through the pipette body 2, after the liquid is sucked by the pipette body 2, the pipette body 2 is moved above another container, the liquid in the suction head is discharged into the other container through the handle 1, and the pipetting operation is completed.

[0042] In order to know the pipetting volume, as shown in Figures 1-2 The pipette body 2 is recessed on one side to form an observation window 3, and the inside of the observation window 3 is provided with scale marks.

[0043] When the device is used by personnel, in order to adjust the distance between the two adjacent pipette tips, as shown in Figures 1-7 The first bottom pipe 51 is fixedly connected with a first bottom frame 54 at the bottom, the first bottom frame 54 is provided with a first bottom groove 55 penetrating through the bottom, the inner wall of the first bottom groove 55 is fixedly connected with two first guide plates 56, and the two first guide plates 56 are slidingly connected with a first sliding plate 57, and the first connecting head 516 is penetratingly and fixedly connected to the first sliding plate 57.

[0044] In this embodiment, before adjusting the distance between the two pipette tips below the first bottom frame 54, the two first sliding plates 57 are pulled to slide between the two first guide plates 56, and the first sliding plate 57 moves together when the first sliding plate 57 slides, so as to adjust the distance between the two first connecting heads 516, and further adjust the distance between the two pipette tips below, so that the device can be adjusted according to the distance between the containers.

[0045] In order to adjust the distance between the two pipette tips below the second bottom pipe 513, as shown in Figures 5-7 The second bottom pipe 513 is fixedly connected with a second bottom frame 515 at the bottom, the second bottom frame 515 is provided with a second bottom groove 511 penetrating through the bottom, the inner wall of the second bottom groove 511 is fixedly connected with two second guide plates 512, and the two second guide plates 512 are slidingly connected with a second sliding plate 59, and the second connecting head 52 is penetratingly and fixedly connected to the second sliding plate 59.

[0046] In this embodiment, before adjusting the distance between the two pipette tips below the second bottom frame 515, the two second sliding plates 59 are pulled to slide between the two second guide plates 512, and the second sliding plate 59 moves together when the second sliding plate 59 slides, so as to adjust the distance between the two second connecting heads 52, and further adjust the distance between the two pipette tips below, so that the device can be adjusted according to the distance between the containers.

[0047] When the device is used by personnel, in order to facilitate holding the pipette body 2, the pipette body 2 is fixedly connected with a handle 6 on one side, and the pipette body 2 is further fixedly connected with a rubber pad 7 on one side, and the rubber pad 7 is below the handle 6.

[0048] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A medical laboratory micropipette characterized by: The application relates to a pipette comprising a pipette body, a bottom of the pipette body being connected with a liquid storage part (5), the liquid storage part (5) comprising a first tube part and N (N>=1) detachably connected second tube parts, one end of the second tube part being fixedly connected with a connecting tube (53) outwardly protruding, the other end being formed with a connecting groove matched with the connecting tube (53) inwardly recessed, the connecting tube (53) being detachably connected with the first bottom tube (51) at an end away from the second bottom tube (513), and the bottom of the first tube part and the second tube part being provided with connecting parts for connecting a suction head, the connecting parts being communicated with the first bottom tube (51), the second bottom tube (513) and the interior of the pipette.

2. A micropipette for medical laboratory use according to claim 1, characterized in that: The first tube part comprises a first bottom tube (51), one side of the first bottom tube (51) being inwardly recessed to form a first connecting groove matched with the second tube part.

3. A medical laboratory micropipette according to claim 2, wherein: The second tube part comprises a second bottom tube (513), one side of the second bottom tube (513) being fixedly connected with the connecting tube (53) outwardly protruding towards the first connecting groove, the other end being inwardly recessed to form a second connecting groove, the connecting tube (53) being matched with the first connecting groove and the second connecting groove, and the second connecting groove being screw-connected with a sealing cover (514) at one side away from the second bottom tube (513).

4. A micropipette for medical laboratory use according to claim 3, characterized in that: The connecting parts comprise first connecting heads (516) and second connecting heads (52) for connecting the suction head. The first connecting heads (516) are fixedly connected with first hoses (58) between the top of the first connecting heads (516) and the first bottom tube (51), and the second connecting heads (52) are fixedly connected with second hoses (510) between the top of the second connecting heads (52) and the second bottom tube (513).

5. A medical laboratory micropipette according to claim 4, wherein: The bottom of the first connecting heads (516) and the second connecting heads (52) is provided with sealing rings.

6. A medical laboratory micropipette according to claim 2, wherein: The pipette body (2) is provided with an operating handle (1) at the top of the pipette body (2), and the pipette body (2) is fixedly connected with a liquid suction head (4) at the bottom of the pipette body (2), and the bottom of the liquid suction head (4) is fixedly connected with the top of the first bottom tube (51).

7. A medical laboratory micropipette according to claim 6, wherein: One side of the pipette body (2) is inwardly recessed to form an observation window (3), and the observation window (3) is provided with scale marks inside.

8. A medical laboratory micropipette according to claim 4, wherein: The first bottom tube (51) is fixedly connected with a first bottom frame (54), the first bottom frame (54) is provided with a first bottom groove (55) penetrating through the bottom of the first bottom frame (54), the inner wall of the first bottom groove (55) is fixedly connected with two first guide plates (56) symmetrically, a first sliding plate (57) is slidably connected between the two first guide plates (56), and the first connecting heads (516) penetrate through and are fixedly connected with the first sliding plate (57).

9. A medical laboratory micropipette according to claim 5, wherein: The second bottom tube (513) is fixedly connected with a second bottom frame (515), the second bottom frame (515) is provided with a second bottom groove (511) penetrating through the bottom of the second bottom frame (515), the inner wall of the second bottom groove (511) is fixedly connected with two second guide plates (512) symmetrically, a second sliding plate (59) is slidably connected between the two second guide plates (512), and the second connecting heads (52) penetrate through and are fixedly connected with the second sliding plate (59).

10. A micropipette for medical laboratory use according to claim 6, characterized in that: The pipette body (2) is fixedly connected with a handle (6) on one side, and is also fixedly connected with a rubber pad (7) on one side, wherein the rubber pad (7) is below the handle (6).

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