Rapid bone marrow cell smear device

Abstract

The utility model relates to the field of bone marrow smear equipment, in particular to a rapid bone marrow cell smear device. The problems that an existing bone marrow smear is large in operation difficulty, and smear uniformity cannot be guaranteed are solved. Comprising a clamping cylinder, a spring and a pushing piece, the pushing piece is movably installed in the clamping cylinder, and one end of the pushing piece extends out of the clamping cylinder and is arranged between ox horn clamps of the clamping cylinder; and a plurality of springs are arranged between the other end of the push piece and the clamping cylinder. According to the device, the aim of quickly, conveniently and uniformly smearing bone marrow is fulfilled by adopting a mode that the clamping cylinder is matched with the movable push sheet and assisting the spring to uniformly exert force.

Description

Technical Field

[0001] The utility model relates to the field of bone marrow smear equipment, in particular to a rapid bone marrow cell smear device. Background Art

[0002] Bone marrow smears are used to determine the degree of nucleated cell proliferation. Bone marrow smears use iron staining and different histochemical staining to provide a diagnostic basis for iron deficiency anemia and various types of leukemia.

[0003] The existing smear method is as follows: a small amount of bone marrow fluid or blood is dipped into a pusher (if it looks very thick, dip less; if it is thin, dip more, and try to dip into the bone marrow residue). The slide is placed at the right 1 / 3 of the slide (leave a label on the back of the right end), and a drop of blood or bone marrow fluid with a diameter of 1-2 mm is placed. The pusher is brought into contact with the drop of blood or bone marrow fluid. When the blood or bone marrow fluid diffuses into a uniform thick line (the pusher can also be moved back and forth or left and right to form a thick bone marrow fluid line), the pusher is then positioned at a 30° to 45° angle to the slide (when the bone marrow fluid is thick, the angle should be smaller and the pushing speed should be slower; when the bone marrow fluid is thinner, the angle should be larger and the pushing speed should be faster). The slide is then evenly pushed forward from right to left until the tail of the slide ends, with the tail ending at the left 1 / 6 of the slide.

[0004] In the above operation, it is required to push out an uninterrupted tongue-shaped strip of film that is slightly narrower than the slide. It is necessary to ensure that the force is stable and there is no lateral deviation during the pushing process. The requirements for the medical staff's operation are high and the operation is difficult. Utility Model Content

[0005] The utility model provides a rapid bone marrow cell smear device, which effectively solves the problems of difficult operation of existing bone marrow smears and the inability to ensure uniform and straight smears. The device adopts a clamping cylinder and a movable pusher to cooperate with the spring to evenly apply force, so as to achieve the purpose of rapid, convenient, uniform and straight bone marrow smears.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the present utility model is as follows:

[0007] A rapid bone marrow cell smear device, characterized in that it includes a chuck 1, a spring 2 and a push piece 3. The push piece 3 is movably installed in the chuck 1, and one end of the push piece 3 extends out of the chuck 1 and is placed between the horn clamps 103 of the chuck 1; a plurality of springs are installed between the other end of the push piece 3 and the chuck.

[0008] The clamping cylinder 1 includes a movable cylinder 101, a limiting card 102 and a horn clamp 103. The horn clamp 103 is provided at one end of the movable cylinder 101, and the limiting card 102 is installed at the mounting point of the horn clamp 103 and the movable cylinder 101.

[0009] The horn clamp 103 is expanded and gradually narrows from the end to the connection with the movable cylinder 101.

[0010] The push piece 3 includes a movable piece 301 and a smear piece 302 , and the width of the smear piece 302 is smaller than that of the movable piece 301 .

[0011] The end of the smear 302 is a bevel structure.

[0012] The beneficial effects of the utility model are as follows: 1) the device places the slide between the horn clamps of the clamp barrel, which can effectively ensure the stability of the slide and the linear distribution of the bone marrow liquid film, and realizes bone marrow smear through the contact between the slide and the pusher.

[0013] 2) The contact force between the slide and the pusher of this device can be effectively kept consistent through the action of the horn clamp and the spring, ensuring the uniformity of the bone marrow liquid film during smearing.

[0014] 3) The gap between the horn clamp and the push piece can ensure that the width of the bone marrow fluid film is slightly narrower than the width of the slide. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is the structural diagram of the utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the utility model;

[0017] Figure 3 Schematic diagram of the chuck structure;

[0018] Figure 4 Schematic diagram of the push-piece structure;

[0019] Figure 5 It is an operation diagram;

[0020] As shown in the figure: the clamping cylinder 1, the movable cylinder 101, the limit card 102, the horn clamp 103, the spring 2, the push piece 3, the movable piece 301, the smear 302, and the slide 4. DETAILED DESCRIPTION

[0021] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific embodiments:

[0022] Example 1

[0023] like Figure 1 The rapid bone marrow cell smear device shown is a smear device that can effectively control the contact force between the pusher and the slide, and is composed of a clamping cylinder 1, a spring 2 and a pusher 3.

[0024] The structure of the chuck 1 is as follows Figure 3As shown, the upper portion is a movable cylinder 101, the lower end is a horn clamp 103, and the step between the movable cylinder 101 and the horn clamp 103 is a limit clamp 102. The horn clamp 103 adopts a structure that gradually expands from bottom to top. The horn clamp 103 is used to fix the slide 4, and the limit clamp 102 is used to limit the range of movement of the slide pusher 3.

[0025] The structure of push piece 3 is as follows Figure 4 As shown, it includes a movable sheet 301 and a smear sheet 302 , and the width of the movable sheet 301 is greater than the width of the smear sheet 302 .

[0026] During installation, the movable plate 301 is placed within the movable barrel 101 of the clamping barrel 1, with three sets of springs 2 interposed between the movable plate and the clamping barrel 1. The movable plate 301's range of motion is limited by a limiter 102. The glass slide 4 is secured during use by a horn clamp 103. Once the slide is positioned, the slide 4 and the smear 302 press against each other, simultaneously compressing the springs 2 and maintaining a stable contact force between the slide 4 and the smear 302.

[0027] Specific use: 1) Place a drop of blood or bone marrow fluid or a small amount of blood with a diameter of 1 to 2 mm on the 1 / 3 of one end of the slide;

[0028] 2) Clamp the slide on both sides with the horn clamps 103;

[0029] 3) Push the slide from right to left at an angle of 30° to 45° to the slide until the end of the slide. The end should end at 1 / 6 of the left side of the slide.

[0030] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0031] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A rapid bone marrow cell smear device, characterized by: It includes a clamping barrel, a spring and a push piece. The push piece can be movably installed in the clamping barrel, and one end of the push piece extends out of the clamping barrel and is placed between the horn clamps of the clamping barrel; a plurality of springs are installed between the other end of the push piece and the clamping barrel.

2. A rapid bone marrow cell smear device according to claim 1, characterized in that: The clamping cylinder comprises a movable cylinder, a limiting card and a horn clamp. The horn clamp is provided at one end of the movable cylinder, and the limiting card is provided at the installation position of the horn clamp and the movable cylinder.

3. A rapid bone marrow cell smear device according to claim 1, characterized in that: The horn clamp is expanded and gradually narrows from the end to the connection with the movable cylinder.

4. A rapid bone marrow cell smear device according to claim 1, characterized in that: The push piece includes a movable piece and a smear piece, and the width of the smear piece is smaller than the width of the movable piece.

5. A rapid bone marrow cell smear device according to claim 1, characterized in that: The end of the smear is a bevel structure.

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