Blood and bone marrow smear device

Abstract

The utility model relates to the technical field of blood smears, in particular to a blood and bone marrow smear device. The slide clamping device is composed of an operation table, a slide clamping device and a slide pushing clamping unit. A sliding rail, an electric push rod and an operation part are arranged on the operation table. The electric push rod can accurately control the position and speed, and the operation part can set parameters and be started to achieve horizontal movement of the dovetail groove. The slide clamping device is used for fixing a slide through a glass carrying table, a limiting block, a sliding block and a spring. The push piece adjusting device comprises a lifting sliding table, an angle adjusting unit and a push piece clamping unit. The height of the lifting sliding table is adjusted through a helical gear and a helical rack, the angle adjusting unit can adjust the angle of the push piece, and the push piece clamping unit clamps or loosens the push piece through a clamping groove and a rotating piece. All parts of the smear device are matched with one another, blood and bone marrow smear operation is facilitated, the structure is exquisite, and operation is convenient and fast.

Description

TECHNICAL FIELD

[0001] The utility model relates to the blood smear technical field, concretely relates to a blood and bone marrow smear device. BACKGROUND

[0002] In the medical examination field, blood and bone marrow smear examination is a very key diagnostic method. The traditional smear preparation work has relied on the pure manual operation of medical staff for a long time, and has many limitations that are difficult to overcome.

[0003] In hematology examination, blood cell morphology analysis can provide key clues for the diagnosis of various blood diseases, such as leukemia, anemia, etc.; bone marrow examination is the "gold standard" for identifying hematopoietic system diseases. In the past, medical staff held a slide and a push piece to make a smear, and the smear quality was greatly affected by the experience and method of the operator. Novice medical staff often make smears with uneven cell distribution due to poor hand stability, inaccurate push piece angle and speed control, and some areas have excessive cell accumulation and some are too sparse, which seriously affects the observation and diagnosis under the microscope and reduces the diagnosis efficiency and accuracy.

[0004] Moreover, during manual smearing, the external environment interference is large, which easily destroys the flatness of the smear. Long-term and high-frequency manual smearing operation also causes hand fatigue accumulation of medical staff, which not only further reduces the smear quality, but also does not meet the ergonomics, and increases the work burden of medical staff.

[0005] With the continuous rise of the dual requirements of modern medicine for examination accuracy and efficiency, automated and high-precision medical examination equipment has become a necessity. Under such a background, it is urgent to develop a blood and bone marrow smear device that can accurately control the push piece angle and the push piece speed, and stably clamp the slide and the push piece, and isolate external interference. It not only can assist medical staff to easily prepare high-quality smears and improve the diagnosis accuracy, but also can optimize the work process, free medical staff from heavy and error-prone manual operation, and meet the new trend of the development of current medical examination. UTILITY MODEL CONTENTS

[0006] The utility model aims at overcoming the problem that the prior art cannot accurately control the push piece angle and the push piece speed.

[0007] In order to achieve the above-mentioned purpose, the technical idea adopted by the utility model to solve its technical problems is:

[0008] The blood and bone marrow smear device takes an operation table as a bearing platform, is equipped with a slide clamping device and a push piece clamping unit, and the slide clamping device is located below the push piece clamping unit.

[0009] The push piece adjusting device comprises a lifting slide vertically arranged on the operation table, wherein a dovetail groove is matched with a sliding block sliding along the length direction of the dovetail groove, the dovetail groove gives the sliding block stable guidance, the vertical movement track of the push piece is accurate and error-free, and deviation is avoided; the transmission part between the two is composed of a bevel gear and a bevel gear rack, this design not only makes the lifting action of the sliding block smooth, but also resists gravity when stationary by virtue of the special meshing characteristics of the bevel gear, thereby preventing the sliding block from sliding down by itself, maintaining the height of the push piece stable, and manual height adjustment is more flexible and lower in cost than electric height adjustment.

[0010] The base of the angle adjusting unit is clamped with the rotating disc, the gear on one side of the rotating disc is matched with the clamping tongue of the base for limiting, and the rotating disc is slightly rotated by the medical staff, so that the angle of the push piece can be accurately changed, different smear thickness and cell distribution requirements can be met, and the flexibility and diversity of the smear are improved.

[0011] In order to realize automatic assistance, a sliding rail and an electric push rod are additionally arranged on the operation table, the dovetail groove is arranged on the sliding rail and connected with the electric push rod, the electric push rod is extended and retracted to drive the push piece to automatically complete horizontal movement, manual operation fluctuation is reduced, the smear efficiency is greatly improved, and the medical staff can operate more easily.

[0012] To achieve the above purpose, the technical scheme adopted by the utility model to solve its technical problems is:

[0013] A blood and bone marrow smear device is designed, and the specific scheme is as follows:

[0014] A blood and bone marrow smear device comprises an operation table, a slide and a push piece adjusting device arranged on the operation table, characterized in that the push piece adjusting device comprises: a lifting slide vertically arranged on the operation table; an angle adjusting unit arranged on the lifting slide; and a push piece clamping unit arranged on the angle adjusting unit and located above the slide clamping device.

[0015] Further, the lifting slide comprises: a dovetail groove vertically arranged on the operation table and sliding along the horizontal direction of the operation table; a sliding block arranged on the dovetail groove and sliding along the length direction of the dovetail groove, used for carrying the angle adjusting unit; and a transmission part arranged between the dovetail groove and the sliding block, used for controlling the movement of the sliding block.

[0016] Further, the transmission part comprises: a bevel gear arranged on the sliding block; and a bevel gear rack arranged on the dovetail groove and engaged with the bevel gear.

[0017] Further, the angle adjusting unit comprises: a base arranged on the sliding block, and a clamping tongue arranged in the base;

[0018] A rotating disc is clamped with the base, one side of the rotating disc is provided with a gear clamped with the clamping tongue, and the other side is provided with a support rod for fixing the push piece clamping unit.

[0019] Further, the operation table is further provided with a sliding rail and an electric push rod arranged at one side of the sliding rail, and the dovetail groove is arranged on the sliding rail and connected with the electric push rod.

[0020] Further, the slide glass clamping device comprises a slide glass table and a limiting device arranged on the slide glass table.

[0021] The utility model discloses the beneficial effects are:

[0022] 1. The transmission part composed of the bevel gear and the bevel gear rack can accurately adjust the vertical height of the push piece, and can resist gravity to maintain height stability when being static, and the angle adjusting unit can flexibly and accurately change the angle of the push piece to meet different smear requirements.

[0023] 2. The electric push rod drives the push piece to automatically horizontally move, reduces manual operation fluctuation, is matched with the stable slide glass and push piece clamping unit, effectively avoids the problem of uneven cell distribution, and improves smear quality and efficiency.

[0024] 3. The manual adjustment lifting slide height is more flexible and lower in cost than the electric mode, and reduces the work burden of medical staff. DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the utility model;

[0026] Figure 2 It is a structural schematic diagram of the push piece adjusting device and the electric push rod;

[0027] Figure 3 It is Figure 2 It is an enlarged view of part A;

[0028] Figure 4 It is a structural schematic diagram of the operation table and the slide glass clamping device;

[0029] Figure 5 It is an exploded structural schematic diagram of the push piece adjusting device;

[0030] Figure 6 It is a structural schematic diagram of the base and the sliding block;

[0031] Figure 7 It is a rear view structural schematic diagram of the base and the bevel gear;

[0032] Figure 8 It is a structural schematic diagram of the rotating disc;

[0033] Figure 9 It is a structural schematic diagram of the push piece clamping unit;

[0034] Figure 10 It is a use state diagram of the utility model.

[0035] Among them, the above drawing includes the following figure marks:

[0036] 10, operating platform; 11, slide rail; 12, electric push rod; 13, operating part; 14, connecting piece; 20, slide clamping device; 21, slide table; 22, limiting device; 221, limiting block; 222, sliding block; 223, soft rubber pad; 224, spring; 30, push piece adjusting device; 31, lifting slide table; 310, dovetail groove; 311, sliding block; 312, transmission part; 3120, bevel gear; 3121, bevel rack; 32, angle adjusting unit; 320, base; 3201, clamping tongue; 321, rotating disc; 3210, gear; 3212, support rod; 33, push piece clamping unit; 330, clamping groove; 331, rotating piece. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments, not all the embodiments.

[0038] In the description of the present application, it should be understood that the terms "front", "back", "left", "right", "up", "down", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0039] Reference Figures 1-10 The present application provides a blood and bone marrow smear device, which comprises an operating platform 10 and a slide clamping device 20 and a push piece adjusting device 30 installed on the operating platform 10 in sequence, and the slide clamping device 20 is located below the push piece adjusting device 30.

[0040] The operating platform 10 is a rectangular metal plate, and parallel slide rails 11 are installed on the length direction of the operating platform 10, the slide rails 11 are fixed on the operating platform 10 by bolts, and the surface is smooth. On one side of the slide rail 11, an electric push rod 12 and an operating part 13 are arranged.

[0041] The slide rail 11 is equipped with a connecting piece 14 matched therewith, and the connecting piece 14 can smoothly slide on the slide rail 11. The length of the slide rail 11 is between 30-40 cm. The stroke range of the electric push rod 12 is 0-30 cm, and one end thereof is stably connected to one side of the connecting piece 14. A dovetail groove 310 is vertically fixed on the upper end of the connecting piece 14.

[0042] When the connecting piece 14 is pushed, the dovetail groove 310 can slide on the slide rail 11. The operation part 13 is located on one side of the electric push rod 12, and is mainly used for setting parameters such as a target position and a speed of the electric push rod 12, and starting the electric push rod 12. The operation part 13 is connected with the electric push rod 12 through a communication port on a respective controller.

[0043] The electric push rod 12 is a prior art including a motor, a push rod, an encoder and a controller, for example, a product model of DFPI series electric push rod. A high-performance servo motor is adopted, a high-precision encoder is built-in, and the position and speed of the push rod can be accurately controlled. When the user sets the target position, the speed and other parameters and starts the electric push rod, the controller sends a driving signal to the servo motor according to the preset information, and the motor starts to rotate. The rotary motion of the motor is converted into the linear motion of the push rod through a screw nut mechanism, and the push rod starts to move.

[0044] The encoder feeds back the position and speed information of the push rod in real time, and the controller adjusts the driving signal of the motor according to the information, so that the push rod accelerates according to the set speed, the impact and vibration at the start are avoided, and smooth start is realized.

[0045] The operation part 13 is a prior art such as a Siemens SIMATIC HMI intelligent panel, which is composed of a high-resolution touch screen, a protective shell, a control circuit board and a communication interface. The size of the touch screen can be selected according to actual needs, and is generally about 5-10 inches. The shell is made of engineering plastic or metal material. After starting, the touch screen interface can intuitively present parameter setting options, for example, the accurate value of the target position is input through a virtual digital keyboard; the speed is adjusted by using a sliding bar or directly inputting a number, and the speed value can be displayed in real time. After setting the parameters, the “start” virtual button on the screen is lit, and clicking can send an instruction to the controller of the electric push rod to start running.

[0046] In specific implementation, the slide clamping device 20 includes a slide table 21 and a limiting device 22. The slide table 21 is a platform with a length of 7-10 cm and a width of 2-3 cm, and is made of stainless steel to provide a stable placement plane for the slide.

[0047] The limiting device 22 is mainly composed of a limiting block 221, a sliding block 222 and a spring 224. The limiting block 221 is fixed to one side of the short side of the glass table 21; the other side of the short side of the glass table 21 is provided with the sliding block 222, and the bottom of the sliding block 222 is provided with a sliding groove matched with the glass table 21, so that the sliding block 222 can smoothly slide along the length direction of the glass table 21. The spring 224 is installed between the limiting block 221 and the sliding block 222. In use, first, the slide is placed on the glass table 21, and then the sliding block 222 is moved, so that one end of the slide abuts against the limiting block 221, and the other end abuts against the sliding block 222, thereby stably fixing the slide. The side of the limiting block 221 and the side of the sliding block 222 abutting against each other are provided with soft rubber pads 223, so as to prevent the slide from being broken due to uneven force and improve the safety and service life of the device.

[0048] In a specific implementation, the push piece adjusting device 30 includes a lifting slide 31, an angle adjusting unit 32 and a push piece clamping unit 33.

[0049] The lifting slide 31 includes a dovetail groove 310, a sliding block 311 and a transmission part 312. The lifting slide 31 is a manual slide of the prior art, and the sliding block 311 can be stably slid on the dovetail groove 310 by manual adjustment.

[0050] The dovetail groove 310 is vertically arranged on the connecting piece 14 and slides along the horizontal direction of the operation table 10. The sliding block 311 is arranged on the dovetail groove 310 and slides along the length direction of the dovetail groove 310. The length of the dovetail groove 310 is 15-20 cm, and a high-strength aluminum alloy material is selected to provide a stable guide track for the sliding block 311. The sliding block 311 is used to install the angle adjusting unit 32.

[0051] The transmission part 312 is arranged between the dovetail groove 310 and the sliding block 311 and is used to control the movement of the sliding block 311. The transmission part 312 includes a bevel gear 3120 and a bevel gear rack 3121. The bevel gear 3120 is arranged on the sliding block 311, and the center shaft of the bevel gear 3120 is rotationally connected with the sliding block 311. The bevel gear rack 3121 is fixed in the groove of the dovetail groove 310 and is engaged with the bevel gear 3120. By rotating the bevel gear 3120 and utilizing the engagement between the bevel gear 3120 and the bevel gear rack 3121, the rotational motion can be converted into the linear motion of the sliding block 311, so as to realize the accurate adjustment of the vertical height of the push piece. The bevel gear structure not only has stable transmission, but also can resist gravity and prevent the sliding block 311 from sliding down by itself at the time of static state, so as to maintain the stable height of the push piece and enable the distance between the push piece and the slide to be controlled with high precision.

[0052] The angle adjusting unit 32 is a prior art damping gear, which is composed of a base 320 and a rotating disc 321. The base 320 is disc-shaped and is fixed on the sliding block 311, and 4-6 “S”-shaped clamping tongues 3201 are evenly distributed on the inner circumference of the base 320. The “S”-shaped design can effectively prevent the clamping tongues from breaking and improve the structural stability. A rotating shaft is arranged in the middle of the base 320.

[0053] The side of the rotating disc 321 facing the base 320 is provided with a gear 3210, which can be clamped with the clamping tongues 3201 of the base 320 and limits the gear 3210. A clamping groove in the middle of the gear 3210 can be clamped with the rotating shaft of the base 320. When the gear 3210 rotates, the clamping tongues 3201 bend, which can achieve flexible rotation and appropriate damping feeling. A supporting rod 3212 is arranged on the other side of the rotating disc 321 to fix the push piece clamping unit 33.

[0054] A scale is engraved on the outer surface of the base 320, and a protrusion is correspondingly arranged on the rotating disc 321. A user can immediately know the specific angle value of the rotating disc 321 relative to the base 320 by checking the scale position corresponding to the protrusion.

[0055] The push piece clamping unit 33 mainly includes a clamping groove 330 and a rotating part 331. The clamping groove 330 is “n”-shaped, and a through hole is arranged on one side of the clamping groove 330. The top of the clamping groove 330 is fixedly connected with the supporting rod 3212. The rotating part 331 is provided with a screw thread, which is matched with the screw thread of the through hole of the clamping groove 330. When the rotating part 331 is rotated and screwed into the clamping groove 330 along the screw thread direction, the rotating part 331 gradually approaches the push piece in the clamping groove 330, and the push piece is clamped by extrusion. When the rotating part 331 is rotated in the opposite direction and withdrawn from the through hole of the clamping groove 330, the extrusion of the push piece disappears, and the push piece is released.

[0056] Working principle: Place the slide on the slide table 21, move the sliding block 222, and make one end of the slide abut against the limiting block 221 and the other end abut against the sliding block 222. The slide is fixed by the elastic force of the spring 224. In the push piece clamping unit 33, the push piece is placed in the clamping groove 330, and the rotating part 331 is rotated and screwed into the clamping groove 330 along the screw thread direction, so as to clamp the push piece by extrusion.

[0057] The bevel gear 3120 installed on the sliding block 311 converts the rotary motion into the linear motion of the sliding block 311 along the length direction of the dovetail groove 310, so as to accurately adjust the vertical height of the push piece. Then, the rotating disc 321 of the angle adjusting unit 32 is rotated, and the scale on the outer surface of the base 320 corresponding to the protrusion on the rotating disc 321 is observed, so as to accurately know the rotation angle and adjust the angle of the push piece.

[0058] On the operation part 13, through the touch screen, the target position, speed and other parameters of the electric push rod 12 are set. Then click "start" to perform the smear operation.

[0059] After the operation is completed, the bevel gear 3120 is rotated to lift the push piece, and the slide is taken out.

[0060] The above only describes preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can be variously changed and modified. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A blood and bone marrow smearing device comprising an operating table (10) and a slide holding device (20) and a slide pushing adjusting device (30) arranged on the operating table (10), characterized in that, The push piece adjusting device (30) comprises: a lifting slide (31) slidably arranged on the operation table (10); an angle adjusting unit (32) arranged on the lifting slide (31); a push piece clamping unit (33) arranged on the angle adjusting unit (32) and located above the slide clamping device (20).

2. A blood and bone marrow spreader according to claim 1, wherein, The lifting slide (31) comprises: a dovetail groove (310) vertically arranged on the operation table (10) and sliding along the horizontal direction of the operation table (10); a sliding block (311) arranged on the dovetail groove (310) and sliding along the length direction of the dovetail groove (310) and used for carrying the angle adjusting unit (32); a transmission part (312) arranged between the dovetail groove (310) and the sliding block (311) and used for controlling the movement of the sliding block (311).

3. A blood and bone marrow spreader according to claim 2, wherein, The transmission part (312) comprises: a helical gear (3120) arranged on the sliding block (311); a helical rack (3121) arranged on the dovetail groove (310) and engaged with the helical gear (3120).

4. A blood and bone marrow spreader according to claim 2, wherein, The angle adjusting unit (32) comprises: a base (320) arranged on the sliding block (311) and internally provided with a clamping tongue (3201); a rotating disc (321) clamped with the base (320), one side of which is provided with a gear (3210) clamped with the clamping tongue (3201) and the other side of which is provided with a supporting rod (3212) used for fixing the push piece clamping unit (33).

5. A blood and bone marrow spreader according to claim 2, wherein, The operation table (10) is further provided with a slide rail (11) and an electric push rod (12) arranged on one side of the slide rail (11), the dovetail groove (310) is arranged on the slide rail (11) and connected with the electric push rod (12).

6. A blood and bone marrow spreader according to claim 1, wherein, The slide clamping device (20) comprises a slide table (21) and a limiting device (22) arranged on the slide table (21).

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