Postoperative wound shooting device for small animal test

Abstract

The utility model discloses a small animal test post-operation wound surface shooting device, which comprises a base, a support vertical rod and an object placing table, the object placing table is arranged on the upper surface of the base, the support vertical rod is vertically fixed on the base, the support vertical rod is arranged on one side of the object placing table, a support arm assembly is arranged on the support vertical rod, and the support arm assembly is connected with the object placing table. Meanwhile, a clamping head assembly is arranged on the supporting arm assembly, a shooting instrument is clamped by the clamping head assembly, a fixing table assembly is installed on the object placing table, the device achieves effective constraint on shot living animals, the scale assembly is matched with the supporting vertical rod, the supporting arm assembly and the clamping head assembly, it is ensured that the proportions of images shot by different devices at different times are consistent, and the shooting efficiency is improved. The scale is used as a correction reference, the actual area of the wound surface can be automatically converted in software, the manual measurement error is reduced, the fixing table assembly and the fixing rod are designed in a modularized mode, 20-500 g experimental animals can be compatible, and the limitation of one mouse and one device of a traditional device is overcome.

Description

Technical Field

[0001] This utility model relates to the field of animal instrument technology, specifically a device for imaging postoperative wounds in small animal experiments. Background Technology

[0002] Traditional methods for observing wounds in laboratory animals have significant shortcomings. During routine manual photography, the lack of restraint on small animals leads to movement and blurry images. Inconsistent shooting distances result in distorted measurement results from photographs. Existing restraint devices are difficult to adapt to animals of different sizes, and the restraint on live animals is rather rough. During the measurement and photography process, experimental animals struggle violently, leading to unclear images. Furthermore, changes in shooting distance increase the error in subsequent calculations of wound area, thus affecting the accuracy of research results. To address these issues, it is necessary to improve existing surgical wound imaging devices for small animal experiments. Utility Model Content

[0003] The purpose of this invention is to provide a device for photographing postoperative wounds in small animal experiments, in order to solve the significant shortcomings of traditional experimental animal wound observation methods mentioned above. During conventional manual photography, the lack of restraint on small animals leads to movement and blurry images. Inconsistent shooting distances result in distorted measurement results from photographs. Existing restraint devices are difficult to adapt to animals of different sizes, and the restraint on live animals is too rough. During the measurement and photography process, experimental animals struggle violently, resulting in unclear images. At the same time, changes in shooting distance increase the error in subsequent calculation of wound area, thus affecting the accuracy of research results.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a device for photographing postoperative wounds in small animal experiments, comprising a base, a supporting vertical rod, and a platform. The platform is mounted on the upper surface of the base, and the supporting vertical rod is vertically fixed on the base. The supporting vertical rod is located on one side of the platform, and a supporting arm assembly is mounted on the supporting vertical rod. A clamp assembly is provided on the supporting arm assembly, and the clamp assembly holds the photographing instrument. A fixed platform assembly is mounted on the platform, and a fixed rod is movably mounted on the fixed platform assembly. A scale assembly is mounted above the platform, and a restraint strap is attached to the fixed platform assembly.

[0005] Preferably, the support arm assembly includes a support arm, a vertical rod hole, a fixing hole, and a fixing bolt. One end of the support arm assembly is the support arm, and the other end is the vertical rod hole. A fixing hole is provided at the end of the vertical rod hole opposite to the support arm, and a fixing bolt is provided in the fixing hole.

[0006] Preferably, the chuck assembly includes a chuck, a connector, and a chuck bolt. The chuck has a slot, and one end of the connector has a fixed shaft that matches the slot, while the other end has a chuck bolt hole. The connector also has a cavity in the middle that matches the support arm.

[0007] Preferably, the fixed platform assembly includes a fixed platform plate, a pivot lug plate, and a threaded pivot. The threaded pivot is installed in the threaded holes on both sides of the fixed platform plate, and a pivot lug plate is provided between the fixed platform plate and the threaded pivot. The fixed platform plate is fixed above the shelf by the pivot lug plate.

[0008] Preferably, the fixing platform has several through-holes, and fixing rods are installed in the holes. The holes can also be used as anchor points for binding straps. Several holes are opened on the upper part of the fixing rod, and the lower part of the fixing rod is a cylinder.

[0009] Preferably, the scale assembly includes a scale, a scale base, a butterfly bolt, and a slider. There are two scale bases, butterfly bolts, and sliders. The slider is fixed to the scale base by the butterfly bolt, and the scale is mounted on the slider.

[0010] Preferably, a raised post is provided above the slider, and holes matching the raised post are provided at both ends of the scale.

[0011] Preferably, both the base and the bottom of the shelf are provided with legs, and the legs are made of rubber.

[0012] Preferably, the base and support arm assembly are made of stainless steel.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This imaging device is equipped with an imaging instrument, a fixed platform assembly, a fixed rod, and a scale assembly. This device can effectively constrain the live animals being filmed. The scale assembly, together with the supporting vertical rod, the supporting arm assembly, and the clamp assembly, ensures that the proportions of images taken at different times and with different devices are consistent, which can improve data comparability. Using the scale as a calibration benchmark, the actual area of ​​the wound can be automatically calculated in the software, reducing manual measurement errors. The modular design of the fixed platform assembly and the fixed rod can accommodate experimental animals weighing 20-500g, solving the limitation of traditional devices that require "one mouse and one device". Attached Figure Description

[0014] Figure 1 This is a three-dimensional view of the left side of this utility model;

[0015] Figure 2 This is a three-dimensional view of the right side of the present invention;

[0016] Figure 3 This is a schematic diagram of the usage state of part of the structure of this utility model;

[0017] Figure 4 This is a schematic cross-sectional view of the support arm assembly of this utility model;

[0018] Figure 5This is an exploded view of the clamp assembly of this utility model;

[0019] Figure 6 This is a schematic cross-sectional view of the clamp assembly of this utility model;

[0020] Figure 7 This is an exploded view of the fixed platform assembly of this utility model;

[0021] Figure 8 This is a schematic diagram of the fixing rod structure of this utility model;

[0022] Figure 9 This is a three-dimensional structural diagram of the ruler component of this utility model;

[0023] Figure 10 This is an exploded view of the scale component of this utility model.

[0024] In the diagram: 1. Imaging instrument; 2. Supporting vertical rod; 3. Base; 4. Support arm assembly; 401. Support arm; 402. Vertical rod hole; 403. Fixing hole; 404. Fixing bolt; 5. Chuck assembly; 501. Chuck; 5011. Slot; 502. Connector; 5021. Fixing shaft; 5022. Chuck bolt hole; 503. Chuck bolt; 6. Display platform; 7. Fixing platform assembly; 701. Fixing platform plate; 702. Rotating shaft ear plate; 703. Threaded rotating shaft; 8. Fixing rod; 9. Scale assembly; 901. Scale; 902. Scale base; 903. Butterfly bolt; 904. Slider; 9041. Protruding column; 10. Restraint strap. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1-10This utility model provides a technical solution: a device for photographing postoperative wounds in small animal experiments, comprising a base 3, a supporting vertical rod 2, and a platform 6. The platform 6 is mounted on the upper surface of the base 3. The platform 6 is made of steel, and the supporting vertical rod 2 is vertically fixed on the base 3. The supporting vertical rod 2 is located on one side of the platform 6, and a supporting arm assembly 4 is mounted on the supporting vertical rod 2. The supporting arm assembly 4 can move up and down and swing left and right at the position of the supporting vertical rod 2. After being adjusted by loosening and tightening the fixing bolt 404, it can be effectively locked in place. At the same time, a clamp assembly 5 is provided on the supporting arm assembly 4, which clamps and holds the photographing instrument 1. The shooting instrument 1 is a digital camera, mobile phone, or other shooting equipment with autofocus and image stabilization. A fixed platform assembly 7 is installed on the platform 6, and a fixed rod 8 is movably installed on the fixed platform assembly 7. It is fixed in the through round hole of the fixed platform assembly 7 as needed, mainly to limit and restrain the body of the live animal. Multiple holes are provided above the fixed rod 8 to provide multiple binding anchor points for the restraint strap 10 of the live animal. At the same time, a ruler assembly 9 is installed above the platform 6, with a pair of separate ruler fixing devices that can accommodate rulers of different sizes. The restraint strap 10 is attached to the fixed platform assembly 7 to restrain the live animal.

[0027] The support arm assembly 4 in this example includes a support arm 401, a vertical rod hole 402, a fixing hole 403, and a fixing bolt 404. One end of the support arm assembly 4 is the support arm 401, which is made of metal. The support arm 401 facilitates the installation, fixing, and position adjustment of the clamp assembly 5. The other end is the vertical rod hole 402, which facilitates installation onto the support vertical rod 2 and allows it to move up and down and swing left and right at the position of the support vertical rod 2. The vertical rod hole 402 has a fixing hole 403 at one end opposite to the support arm 401, and a fixing bolt 404 is provided in the fixing hole 403. The fixing bolt 404 is provided to ensure effective locking after adjustment.

[0028] The chuck assembly 5 in this example includes a chuck 501, a connector 502, and a chuck bolt 503. The chuck 501 has a slot 5011 for easy connection with the connector 502. One end of the connector 502 has a fixed shaft 5021 that matches the slot 5011, and the other end has a chuck bolt hole 5022 for easy fixing to the support arm assembly 4. The connector 502 has a cavity in the middle that matches the support arm 401. The chuck 501 can firmly hold the shooting instrument 1, such as a camera or mobile phone. The chuck 501 can move back and forth with the support arm assembly 4 using the connector 502 and the chuck bolt 503. The surface of the fixed shaft 5021 is coated with a high-density flexible coating and has an interference fit with the slot 5011. After applying a certain torque, the chuck 501 can be rotated. After the torque stops, it can be fixed in the current position by friction.

[0029] The fixed platform assembly 7 in this example includes a fixed platform plate 701, a pivot lug plate 702, and a threaded pivot 703. The threaded pivot 703 is installed in threaded holes on both sides of the fixed platform plate 701. The pivot lug plate 702 is positioned between the fixed platform plate 701 and the threaded pivot 703. The fixed platform plate 701 is fixed above the shelf 6 via the pivot lug plate 702. The bottom of the pivot lug plate 702 that contacts the shelf 6 is a weak magnetic magnet, which can easily adhere to the flat surface of the steel shelf 6. The weak magnetic magnet provides a certain attraction force and facilitates position adjustment. When it is necessary to adjust the angle of the fixed platform plate 701, the threaded pivot 703 is released. After adjusting the angle of the fixed platform 701, tighten the threaded shaft 703 and press the shaft lug 702 against the fixed platform 701, using friction to fix it. The same connection and fastening method is used on both the left and right sides. The upper surface of the fixed platform 701 may be covered with a flexible material with low thermal conductivity to provide a more comfortable contact surface for live experimental animals. The fixed platform 701 may have a built-in heating plate (maintaining a constant temperature of 37-40℃). The comfortable temperature range can reduce animal stress response and maintain the comfort of animals during the experiment. The fixed platform 701 can achieve a certain angle of rotation adjustment and positioning by using the shaft lug 72 and the threaded shaft 703.

[0030] In this example, the fixing platform 701 has several through-holes, and fixing rods 8 are installed in the holes. The fixing rods 8 can be fixed in the through-holes of the fixing platform 701 as needed to limit and constrain the body of the live animal. At the same time, the holes can be used as anchor points for the restraint straps 10 to facilitate the fixing of live animals of different sizes. Several holes are opened on the upper part of the fixing rods 8. The cross-section of the upper part of the fixing rods 8 is larger than the cross-section of the lower cylinder, providing multiple anchor points for the restraint straps of the live animal. The lower part of the fixing rods 8 is cylindrical, which makes it easy to insert into the through-holes of the fixing platform 701.

[0031] The ruler assembly 9 in this example includes a ruler 901, a ruler base 902, a butterfly bolt 903, and a slider 904. There are two ruler bases 902, butterfly bolts 903, and sliders 904. The slider 904 is fixed to the ruler base 902 by the butterfly bolts 903, and the ruler 901 is mounted on the slider 904. The bottom of the ruler base 902 is a magnet, which can be magnetically attracted to the surface of the platform 6. Only a small force is needed to attract and fix the ruler assembly 9, which makes it easy to arrange and securely position the ruler 901 at any position in the horizontal dimension. Both the ruler base 902 and the slider 904 have fixing grooves. By tightening and loosening the butterfly bolts 903 and moving the slider 904 to a suitable position, the vertical positioning of the ruler can be adjusted.

[0032] In this example, a protruding post 9041 is provided above the slider 904, and holes matching the protruding post 9041 are provided at both ends of the scale 901. The protruding post 9041 is used to fix the scale 901 on the slider 904 to prevent the scale assembly 901 from moving and the scale 901 from falling off.

[0033] In this example, both the base 3 and the shelf 6 are equipped with feet at the bottom, and the feet are made of rubber. Rubber has strong friction to enhance stability.

[0034] In this example, the base 3 and the support arm assembly 4 are made of stainless steel. Stainless steel has a certain weight to ensure sufficient stability. The base 3 can be made of a steel plate with a thickness of 10~20mm to determine the appropriate size according to the size of the animal to be photographed in the experiment. It has a certain weight to ensure sufficient stability. The support arm assembly 4 needs to support the weight of the shooting instrument 1. The high strength of stainless steel can ensure the stability of the support structure and prevent deformation or breakage caused by long-term use or external force, thus ensuring the stability of the shooting.

[0035] Working principle: During assembly, first install the support arm assembly 4 onto the support vertical rod 2 at a suitable position through the vertical rod hole 402, then fix the support arm assembly 4 onto the support vertical rod 2 with fixing bolts 404. Next, install the clamp assembly 5 onto the support arm 401 through the connector 502, and then fix the clamp assembly 5 onto the support arm 401 at a suitable position with clamp bolts 503. Then, install the platform 6 onto the base 3 and fix it by friction. Install the pivot ear plate 702 onto both sides of the fixed platform 701 through the threaded pivot 703. Then, fix the fixed platform assembly 7 onto the upper surface of the platform 6 by the weak magnetic attraction of the bottom of the pivot ear plate 702. Finally, install the slider 90... Align the fixing groove on 4 with the fixing groove on the ruler base 902, fix the slider 904 on the ruler base 902 with the butterfly bolt 903, then align the holes at both ends of the ruler 901 and place it on the protruding post above the slider 904, then fix the ruler assembly 9 to the upper surface of the platform 6 by the magnet at the bottom of the ruler base 902, then place the imaging instrument 1 in the clamp 501 of the clamp assembly 5, then place the live animal on the fixed platform 701, and finally use the restraint strap 10 to pass through the round hole on the fixed platform 701 to restrain the live animal on the fixed platform 701. Alternatively, the holes on the fixing rod 8 and the restraint strap can be used to fix the live animal on the fixed platform 701.

[0036] When using, place live animals (such as...) Figure 2As shown in section a), place the live animal (as shown in section a) in a suitable position on the fixed platform 701, move the wound area of ​​the live animal to the center of the camera, and use the round hole, fixing rod 8, and restraint strap 10 on the fixed platform 701 to fix the live animal. Adjust the position of the scale assembly 9 so that the scale 901 is at the tangent position of the wound. Adjust the height of the imaging instrument 1 according to the scale 901. At this time, the imaging instrument 1 can be used to photograph the live animal. If you want to adjust the shooting angle, you can loosen the threaded shaft 703 used for the fixed platform 701, rotate the fixed platform 701 to the desired angle, and then tighten the bolt. Alternatively, you can loosen the fixing bolt 404 used for the support arm assembly 4, adjust the height of the support arm assembly 4 up and down, or shift it left and right (around the support vertical rod 2) to the appropriate position. Once the desired position is reached, tighten the fixing bolt 404. Alternatively, loosen the chuck bolt 503 for the chuck assembly 5, move the chuck assembly 5 left or right along the support arm assembly 4, or rotate it to the desired position, and then tighten the chuck bolt 503. To adjust the position of the scale 901, first loosen the butterfly bolt 903, move the slider 904 up or down to the desired position, and then tighten the butterfly bolt 903. The scale 901 works in conjunction with the adjustable support arm assembly 4, the chuck assembly 5, and the fixing platform assembly 7 to ensure consistent image proportions at different times and with different devices, improving data comparability. Using the scale 901 as a calibration benchmark, the actual wound area can be automatically calculated in the software, reducing manual measurement errors. ImageJ software is used to process the images, calculate the wound area, and calculate the healing rate. This completes the entire process. Any content not described in detail in this manual is prior art known to those skilled in the art.

[0037] The terms “center,” “longitudinal,” “lateral,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0038] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A device for photographing postoperative wounds in small animal experiments, comprising a base (3), a supporting vertical rod (2), and a platform (6), characterized in that: A platform (6) is installed on the upper surface of the base (3), and a support rod (2) is vertically fixed on the base (3). The support rod (2) is located on one side of the platform (6), and a support arm assembly (4) is installed on the support rod (2). At the same time, a clamp assembly (5) is provided on the support arm assembly (4). The clamp assembly (5) clamps the shooting instrument (1). A fixed platform assembly (7) is installed on the platform (6), and a fixed rod (8) is movably installed on the fixed platform assembly (7). At the same time, a ruler assembly (9) is installed above the platform (6), and a restraint strap (10) is attached to the fixed platform assembly (7).

2. The device for imaging postoperative wounds in small animal experiments according to claim 1, characterized in that: The support arm assembly (4) includes a support arm (401), a vertical rod hole (402), a fixing hole (403), and a fixing bolt (404). One end of the support arm assembly (4) is the support arm (401), and the other end is the vertical rod hole (402). The vertical rod hole (402) is provided with a fixing hole (403) at one end opposite to the support arm (401), and a fixing bolt (404) is provided in the fixing hole (403).

3. The device for imaging postoperative wounds in small animal experiments according to claim 2, characterized in that: The chuck assembly (5) includes a chuck (501), a connector (502), and a chuck bolt (503). The chuck (501) has a slot (5011), and one end of the connector (502) is provided with a fixed shaft (5021) that matches the slot (5011), and the other end is provided with a chuck bolt hole (5022). The connector (502) also has a cavity in the middle that matches the support arm (401).

4. The device for imaging postoperative wounds in small animal experiments according to claim 1, characterized in that: The fixed platform assembly (7) includes a fixed platform plate (701), a pivot ear plate (702), and a threaded pivot (703). The threaded pivot (703) is installed in the threaded holes on both sides of the fixed platform plate (701). The pivot ear plate (702) is provided between the fixed platform plate (701) and the threaded pivot (703). The fixed platform plate (701) is fixed above the shelf (6) by the pivot ear plate (702).

5. The device for imaging postoperative wounds in small animal experiments according to claim 4, characterized in that: The fixed platform (701) has several through holes, and a fixed rod (8) is installed in the holes. The holes can also be used as anchor points for binding the restraint strap (10). The upper part of the fixed rod (8) has several holes, and the lower part of the fixed rod (8) is a cylinder.

6. The device for imaging postoperative wounds in small animal experiments according to claim 1, characterized in that: The scale assembly (9) includes a scale (901), a scale base (902), a butterfly bolt (903), and a slider (904). There are two scale bases (902), two butterfly bolts (903), and two sliders (904). The slider (904) is fixed to the scale base (902) by the butterfly bolt (903), and the scale (901) is installed on the slider (904).

7. The device for imaging postoperative wounds in small animal experiments according to claim 6, characterized in that: The slider (904) is provided with a protruding post (9041) above it, and the scale (901) has holes at both ends that match the protruding post (9041).

8. The device for imaging postoperative wounds in small animal experiments according to claim 1, characterized in that: Both the base (3) and the shelf (6) are equipped with feet at the bottom, and the feet are made of rubber.

9. The device for imaging postoperative wounds in small animal experiments according to claim 1, characterized in that: The base (3) and support arm assembly (4) are made of stainless steel.

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