Seminal spot sperm tissue visual searching, positioning and extracting device

Abstract

The invention discloses a sperm spot sperm tissue visual searching, positioning and extracting device which comprises a sperm spot sperm searching instrument and a working platform. The working platform is provided with an X-axis adjusting assembly, a Y-axis adjusting assembly and a Z-axis adjusting assembly. The X-axis adjusting assembly comprises a first motor, an X-axis guide rail, a first lead screw and a first movable block. The Y-axis adjusting assembly comprises a Y-axis mounting frame, a second motor, a second lead screw and a second movable block; the Z-axis adjusting assembly comprises a Z-axis guiding frame, a third movable block and a connecting frame. The sperm spot sperm tissue visual searching, positioning and extracting device can freely adjust the three-dimensional position of the sperm spot sperm searching instrument in a three-dimensional space. The position of the exfoliated cell searching instrument is flexibly adjusted along the X / Y / Z axis, so that the sperm spot sperm searching instrument can move to any point position of a detected material object interface, and a visual image is microscopically amplified to carry out accurate searching, interpretation and target positioning.

Description

Technical Field

[0001] The invention relates to a device for visually searching, locating and extracting sperm stain and sperm tissue. Background Art

[0002] At present, the search and collection of sperm tissue from semen stains of sex crime suspects in criminal investigations is passive, as sperm cannot be observed with the naked eye. Therefore, blind extraction can only be carried out from places where the suspect or victim's clothes, quilts, bed sheets, etc. may be left behind. The defect of this blind extraction method is that it is impossible to determine whether sperm and endocrine tissue have been collected for further DNA testing. On the other hand, even if semen stains are collected, whether they contain sperm can only be determined after completing the experimental process, which is time-consuming, labor-intensive and consumable. Therefore, it is very important to solve the technical bottleneck of accurate extraction of sperm from semen stains.

[0003] Semen stains and sperm tissue that are invisible to the naked eye are mainly found on the suspect's and victim's clothes, quilts, bed sheets, tools used in committing crimes, and utensils touched at the scene. These objective specimens have various irregular shapes and sizes, and the split optical imaging structure design of the existing various microscopes' support platforms and microscope objectives and eyepieces is limited by the working space. The microscope objectives and eyepieces cannot adjust their positions according to the shape or volume of the specimens, making it impossible to perform accurate optical microscopic observation of the specimens. Summary of the invention

[0004] The present invention provides a device for visually searching, locating and extracting sperm stains and sperm tissues, which adopts the following technical solutions:

[0005] A device for visually searching, locating and extracting sperm stains and sperm tissues, comprising: a sperm stain and sperm searcher and a working platform; the working platform is provided with an X-axis adjustment component, a Y-axis adjustment component and a Z-axis adjustment component; the X-axis adjustment component comprises: a first motor, an X-axis guide rail, a first lead screw and a first movable block; the X-axis guide rail is mounted on the working platform; the first motor is arranged at one end of the X-axis guide rail; one end of the first lead screw is connected to the motor shaft of the first motor; the first movable block is slidably connected to the X-axis guide rail and a thread sleeve is arranged on the outer periphery of the first lead screw; the Y-axis adjustment component comprises: a Y-axis mounting frame ..., and a thread sleeve is arranged on the outer periphery of the first lead screw; the Y-axis adjustment component comprises: a Y-axis Two motors, a second lead screw and a second movable block; one end of the Y-axis mounting frame is fixed to the first movable block; the second motor is mounted to the other end of the Y-axis mounting frame; one end of the second lead screw is connected to the motor shaft of the second motor; the second movable block is slidably connected to the Y-axis mounting frame and a threaded sleeve is arranged on the outer periphery of the second lead screw; the Z-axis adjustment assembly includes: a Z-axis guide frame, a third movable block and a connecting frame; one end of the Z-axis guide frame is connected to the second movable block; the third movable block is slidably connected to the Z-axis guide frame; one end of the connecting frame is fixed to the third movable block; the sperm spot and sperm searcher is mounted to the connecting frame.

[0006] Further, a regulating rack is provided on the Z-axis guide; a regulating member for regulating the third movable block is provided on the third movable block; the regulating member includes: a regulating rod rotatably connected to the third movable block and a regulating gear mounted at one end of the regulating rod for meshing with the regulating rack.

[0007] Further, the working platform is provided with a mounting housing and an upper cover for enclosing the mounting housing; the X-axis adjusting assembly is mounted in the mounting cavity formed by the mounting housing; the upper cover is formed with a first guiding groove for allowing the first movable block to pass through and guiding the first movable block.

[0008] Further, a plurality of shock-absorbing struts for supporting the working platform and damping the working platform are provided at the bottom of the mounting housing.

[0009] Further, a control panel is formed on the mounting housing; the control panel is provided with an X-axis control assembly for controlling the first motor and a Y-axis control assembly for controlling the second motor; the X-axis control assembly and the Y-axis control assembly are electrically connected to the first motor and the second motor respectively.

[0010] Further, the X-axis control assembly includes: a first forward switch and a first reverse switch for respectively controlling the forward rotation and reverse rotation of the first motor; the Y-axis control assembly includes: a second forward switch and a second reverse switch for respectively controlling the forward rotation and reverse rotation of the second motor.

[0011] Further, the X-axis control assembly further includes a first adjustment button for controlling the rotation speed of the first motor; the Y-axis control assembly further includes a second adjustment button for controlling the rotation speed of the second motor.

[0012] Further, the visual search, positioning and extraction device for seminal stain and sperm tissue further includes a display; the display is mounted on the working platform through a support frame and is electrically connected to the seminal stain and sperm search instrument.

[0013] Further, the Y-axis mounting frame is formed with a second guiding groove for allowing the second movable block to pass through and guiding the second movable block.

[0014] Further, the visual search, positioning and extraction device for seminal stain and sperm tissue further includes an extraction membrane for photographic evidence collection.

[0015] The advantage of the present invention lies in that the visualized search, positioning and extraction device for seminal stain sperm tissue can adjust the three-dimensional position of the three-dimensional seminal stain sperm detector in the three-dimensional space. By flexibly adjusting the position of the three-dimensional seminal stain sperm detector along the X / Y / Z axes, the three-dimensional seminal stain sperm detector can be moved to any point position on the interface of the forensic material object, so as to microscopically magnify the visual image for precise search, interpretation and positioning of the target. At the same time, by adjusting the position of the three-dimensional seminal stain sperm detector through such a structure, it is possible to avoid cross-contamination and damage to trace amounts of traces caused by manual movement of the forensic material by the staff, and thus achieve the purpose of searching, positioning and extracting the seminal stain sperm tissue without contacting the forensic material. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of a visualized search, positioning and extraction device for seminal stain sperm tissue of the present invention;

[0017] Figure 2 is Figure 1 a sectional view of the visualized search, positioning and extraction device for seminal stain sperm tissue in

[0018] Figure 3 is a schematic diagram of an extraction membrane for photographic evidence collection provided by the present invention;

[0019] Visualized search, positioning and extraction device 10 for seminal stain sperm tissue, seminal stain sperm detector 11, workbench 12, mounting housing 121, upper cover 122, first guide groove 1221, control panel 123, first forward switch 1231, first reverse switch 1232, first adjustment button 1233, second forward switch 1234, second reverse switch 1235, second adjustment button 1236, X-axis adjustment assembly 13, first motor 131, X-axis guide rail 132, first lead screw 133, first movable block 134, Y-axis adjustment assembly 14, Y-axis mounting bracket 141, second guide groove 142, second motor 143, second lead screw 144, second movable block 145, Z-axis adjustment assembly 15, Z-axis guide frame 151, adjustment rack 152, third movable block 153, adjustment member 154, connecting frame 155, shock-absorbing strut 16, display 17, support frame 18, extraction membrane 19, central circular hole 191 of the extraction membrane. DETAILED DESCRIPTION OF THE INVENTION

[0020] The present invention will be specifically introduced below in conjunction with the accompanying drawings and specific embodiments.

[0021] As Figures 1 to 2 shown, a visualized search, positioning and extraction device 10 for seminal stain sperm tissue includes: a seminal stain sperm detector 11 and a workbench 12. Place the forensic material suspected of being attached with seminal stain sperm on the workbench 12, and then search for the forensic material suspected of being attached with seminal stain sperm through the seminal stain sperm detector 11.

[0022] As a specific structure, the working platform 12 is provided with an X-axis adjustment component 13, a Y-axis adjustment component 14, and a Z-axis adjustment component 15. The X-axis adjustment component 13 includes: a first motor 131, an X-axis guide rail 132, a first lead screw 133, and a first movable block 134. The X-axis guide rail 132 is installed on the working platform 12. The first motor 131 is disposed at one end of the X-axis guide rail 132. One end of the first lead screw 133 is connected to the motor shaft of the first motor 131. The first movable block 134 is slidably connected to the X-axis guide rail 132 and is threadedly sleeved on the outer periphery of the first lead screw 133. The Y-axis adjustment component 14 includes: a Y-axis mounting frame 141, a second motor 143, a second lead screw 144, and a second movable block 145. One end of the Y-axis mounting frame 141 is fixed to the first movable block 134. The second motor 143 is installed at the other end of the Y-axis mounting frame 141. One end of the second lead screw 144 is connected to the motor shaft of the second motor 143. The second movable block 145 is slidably connected to the Y-axis mounting frame 141 and is threadedly sleeved on the outer periphery of the second lead screw 144. The Y-axis mounting frame 141 is formed with a second guiding groove 142. The second guiding groove 142 is used for the second movable block 145 to pass through and guide the sliding of the second movable block 145.

[0023] The Z-axis adjustment component 15 includes: a Z-axis guiding frame 151, a third movable block 153, and a connecting frame 155. One end of the Z-axis guiding frame 151 is connected to the second movable block 145. The third movable block 153 is slidably connected to the Z-axis guiding frame 151. One end of the connecting frame 155 is fixed to the third movable block 153. The exfoliated cell search instrument 11 is installed on the connecting frame 155.

[0024] Specifically, when the first motor 131 rotates, it drives the first lead screw 133 to rotate. Since the first movable block 134 is constrained by the X-axis guide rail 132, when the first lead screw 133 rotates, it drives the first movable block 134 to slide along the X-axis guide rail 132 through the threaded structure, thereby driving the exfoliated cell search instrument 11 to move in the X-axis direction. When the second motor 143 rotates, it drives the second lead screw 144 to rotate. Since the second movable block 145 is constrained by the Y-axis guide rail, when the second lead screw 144 rotates, it drives the second movable block 145 to slide along the Y-axis guide rail through the threaded structure, thereby driving the sperm search instrument 11 in the seminal stain to move in the Y-axis direction. When it is necessary to adjust the position of the exfoliated cell search instrument 11 in the Z-axis direction, the third movable block 153 is toggled to slide it along the Z-axis guiding frame 151 to the required position. The X-axis, Y-axis, and Z-axis in this solution are three mutually perpendicular axial directions.

[0025] With the above structure, the three-dimensional position of the sperm search instrument 11 for seminal stains can be adjusted in a three-dimensional space. Since the sizes and uneven surfaces of the specimens with seminal stains and sperm are different, the visual search, positioning and extraction device 10 for seminal stain sperm tissue can flexibly adjust the position of the exfoliated cell search instrument 11 along the X / Y / Z axes, so that the sperm search instrument 11 for seminal stains can move to any point on the specimen interface, thereby microscopically magnifying the visual image for accurate search, interpretation and positioning of the target. At the same time, by adjusting the position of the sperm search instrument 11 for seminal stains through such a structure, it is possible to avoid cross-contamination and damage to trace amounts of traces caused by the staff manually moving the specimen, and thus achieve the purpose of searching, positioning and extracting the seminal stain sperm tissue without contacting the specimen. In the present invention, the X-axis adjustment and the Y-axis adjustment are carried out in the manner of a lead screw and nut. As another alternative embodiment, the X-axis adjustment and the Y-axis adjustment can be carried out in the manner of a ball screw and nut. That is, on the basis of the structure described above, a first ball group is provided between the first lead screw and the first movable block, and a second ball group is provided between the second lead screw and the second movable block to form a ball screw and nut fit.

[0026] As a specific embodiment, the Z-axis guide frame 151 is provided with an adjustment rack 152. The third movable block 153 is provided with an adjustment member 154. The adjustment member 154 is used to adjust the position of the third movable block 153. Specifically, the adjustment member 154 includes: an adjustment rod and an adjustment gear. The adjustment rod is rotatably connected to the third movable block 153. The adjustment gear is installed at one end of the adjustment rod and meshes with the adjustment rack 152. When the adjustment rod is rotated, it can drive the adjustment gear to move relative to the adjustment rack 152, thereby driving the third movable block 153 to move. Such an adjustment method is more accurate.

[0027] As a specific embodiment, the workbench 12 is provided with an installation housing 121 and an upper cover 122. The X-axis adjustment assembly 13 is installed in the installation cavity formed by the installation housing 121. The upper cover 122 is used to close the installation housing 121 to protect the internal installation parts. The upper cover 122 is formed with a first guide groove 1221. The first guide groove 1221 is used for the first movable block 134 to pass through and guide the sliding of the first movable block 134.

[0028] Furthermore, a plurality of shock-absorbing struts 16 are provided at the bottom of the installation housing 121. The shock-absorbing struts 16 are used to support the workbench 12 and damp the workbench 12. This can reduce the influence of vibrations generated in the surrounding environment on the stability of the sperm search instrument 11 for seminal stains, thereby ensuring that the visual picture is clear and does not shake, and further ensuring the working stability of the sperm search instrument 11 for seminal stains.

[0029] Further, the mounting housing 121 is rectangular. The number of shock absorbers 16 is 4. The 4 shock absorbers 16 are respectively arranged at the 4 corners of the mounting housing 121.

[0030] As a specific implementation, the mounting housing 121 is formed with a control panel 123. The control panel 123 is provided with an X-axis control component and a Y-axis control component. The X-axis control component is used to control the first motor 131. The Y-axis control component is used to control the second motor 143. The X-axis control component and the Y-axis control component are respectively electrically connected to the first motor 131 and the second motor 143.

[0031] As a specific implementation, the X-axis control component includes: a first forward switch 1231 and a first reverse switch 1232. The first forward switch 1231 is used to control the first motor 131 to rotate forward, and the first reverse switch 1232 is used to control the first motor 131 to rotate in reverse. The Y-axis control component includes: a second forward switch 1234 and a second reverse switch 1235. The second forward switch 1234 is used to control the second motor 143 to rotate forward, and the second reverse switch 1235 is used to control the second motor 143 to rotate in reverse.

[0032] Further, the X-axis control component further includes a first adjustment button 1233. The first adjustment button 1233 is used to control the rotation speed of the first motor 131. The Y-axis control component further includes a second adjustment button 1236. The second adjustment button 1236 is used to control the rotation speed of the second motor 143.

[0033] As a specific implementation, the semen stain sperm tissue visualization search, positioning and extraction device 10 further includes a display 17. The display 17 is mounted on the work platform 12 through a support frame 18. The display 17 is electrically connected to the semen stain sperm search instrument 11 to receive the pictures uploaded by the semen stain sperm search instrument 11. In this way, the images taken by the semen stain sperm search instrument 11 can be seen through the display 17.

[0034] As a specific implementation, the semen stain sperm tissue visualization search, positioning and extraction device 10 further includes an extraction diaphragm 19. An extraction hole 191 is formed in the middle of the extraction diaphragm 19. The thickness of the extraction diaphragm is less than or equal to 5 mm, and the inner diameter of the extraction hole 191 is less than or equal to 5 mm. In the present invention, the thickness of the extraction diaphragm 19 is set to 3 mm, and the thickness of the extraction hole 191 is set to 3 mm. When the position of the exfoliated cell search instrument 11 is adjusted and the target semen stain sperm is searched, the extraction diaphragm 19 is placed on the object to be searched so that the target semen stain sperm is located in the extraction hole 191 of the extraction diaphragm 19, and then the semen stain sperm search instrument 11 is lifted, and the target semen stain sperm in the extraction hole 191 is extracted through the extraction device.

[0035] The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the art should understand that the above embodiments do not limit the present invention in any form, and all technical solutions obtained by means of equivalent replacement or equivalent transformation fall within the protection scope of the present invention.

Claims

1. A device for visually searching, locating and extracting sperm stains and sperm tissue, comprising: Sperm stain and sperm search instrument and working platform; characterized in that the working platform is provided with an X-axis adjustment component, a Y-axis adjustment component and a Z-axis adjustment component; the X-axis adjustment component comprises: a first motor, an X-axis guide rail, a first lead screw and a first movable block; the X-axis guide rail is mounted to the working platform; the first motor is arranged at one end of the X-axis guide rail; one end of the first lead screw is connected to the motor shaft of the first motor; the first movable block is slidably connected to the X-axis guide rail and is threadedly sleeved on the outer periphery of the first lead screw; the Y-axis adjustment component comprises: a Y-axis mounting frame, a second motor, a second lead screw and a second movable block; One end of the Y-axis mounting frame is fixed to the first movable block; the second motor is mounted to the other end of the Y-axis mounting frame; one end of the second lead screw is connected to the motor shaft of the second motor; the second movable block is slidably connected to the Y-axis mounting frame and is threadedly sleeved on the outer circumference of the second lead screw; the Z-axis adjustment assembly includes: a Z-axis guide frame, a third movable block and a connecting frame; one end of the Z-axis guide frame is connected to the second movable block; the third movable block is slidably connected to the Z-axis guide frame; one end of the connecting frame is fixed to the third movable block; the sperm stain and sperm searcher is mounted to the connecting frame.

2. The device for visualizing, searching, locating and extracting sperm stains and sperm tissues according to claim 1, characterized in that: The Z-axis guide frame is provided with an adjustment rack; the third movable block is provided with an adjustment member for adjusting it; the adjustment member includes: an adjustment rod rotatably connected to the third movable block and an adjustment gear installed to one end of the adjustment rod for meshing with the adjustment rack.

3. The device for visualizing, searching, locating and extracting sperm stains and sperm tissues according to claim 1, characterized in that: The working platform is provided with a mounting shell and an upper cover for closing the mounting shell; the X-axis adjustment assembly is installed in a mounting cavity formed by the mounting shell; the upper cover is formed with a first guide groove for allowing the first movable block to pass through and guide the first movable block.

4. The device for visualizing, searching, locating and extracting sperm stains and sperm tissues according to claim 3, characterized in that: A plurality of shock-absorbing pillars for supporting and shock-absorbing the working platform are arranged at the bottom of the installation shell.

5. The device for visualizing, searching, locating and extracting sperm stains and sperm tissues according to claim 3, characterized in that: The mounting shell is formed with a control panel; the control panel is provided with an X-axis control component for controlling the first motor and a Y-axis control component for controlling the second motor; the X-axis control component and the Y-axis control component are electrically connected to the first motor and the second motor respectively.

6. The device for visualizing, searching, locating and extracting sperm stains and sperm tissues according to claim 5, characterized in that: The X-axis control component includes: a first forward switch and a first reverse switch for controlling the first motor to rotate forward and reverse respectively; the Y-axis control component includes: a second forward switch and a second reverse switch for controlling the second motor to rotate forward and reverse respectively.

7. The device for visualizing, searching, locating and extracting sperm stains and sperm tissues according to claim 6, characterized in that: The X-axis control component further includes a first adjustment button for controlling the rotation speed of the first motor; the Y-axis control component further includes a second adjustment button for controlling the rotation speed of the second motor.

8. The device for visualizing, searching, locating and extracting sperm stains and sperm tissues according to claim 1, characterized in that: The device for visually searching, locating and extracting sperm stains and sperm tissues also includes a display; the display is mounted on the working platform via a support frame and is electrically connected to the sperm stain and sperm searcher.

9. The device for visualizing, searching, locating and extracting sperm stains and sperm tissues according to claim 1, characterized in that: The Y-axis mounting frame is formed with a second guide groove for allowing the second movable block to pass through and guide the second movable block.

10. The sperm stain and sperm tissue visualization search and positioning membrane according to claim 1, characterized in that: The sperm stain sperm tissue visualization search positioning extraction membrane is printed with a ruler, and an extraction circular hole is opened in the center of the extraction membrane.

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