Operation fixing table for exposing neck / abdomen of mouse
By designing a fixation platform suitable for mice, including an operating table, heating plate, limb restraint components, and positioning pad, the problem of inconvenient fixation during mouse surgery was solved. This achieved stable and comfortable fixation of mice during surgery and full exposure of the surgical area, thus improving surgical efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- PEKING UNIVERSITY THIRD HOSPITAL (THE THIRD CLINICAL MEDICAL SCHOOL OF PEKING UNIVERSITY)
- Filing Date
- 2025-02-05
- Publication Date
- 2026-05-08
AI Technical Summary
Existing surgical fixation devices for mice are difficult to adapt to the fixation needs of mice of different ages, leading to animal discomfort and inaccurate experimental results, and making it difficult to expose the neck or abdomen during surgery.
A fixed platform was designed, comprising an operating table, a heating plate, a limb restraint assembly, an anesthesia inhalation assembly, and a positioning pad. The limb restraint assembly and the adjustable positioning pad, which are slidably connected, work in conjunction with the heating plate to ensure that the mouse's limbs are fixed and the surgical area is fully exposed.
It achieves stable and comfortable fixation of mice during surgery, reduces animal injury, and improves surgical efficiency and safety, making it suitable for various mouse surgical experiments.
Smart Images

Figure CN224206931U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of animal operating table technology, and in particular to a surgical fixation table for exposing the neck / abdomen of mice. Background Technology
[0002] Animals are commonly used in scientific research to gain new knowledge in biology, medicine, and other fields, or to solve specific problems. The ultimate goal of the development of laboratory animal science is to apply the study of animal life phenomena to humans, controlling human diseases and aging, and extending human lifespan. Mice are the most commonly used laboratory animals, leading to the development of specialized operating tables or dissection tables for experiments on mice and rats. These tables typically use straps attached to nails on the operating table to secure the mouse's limbs. However, this method of restraint is often difficult to adjust for mice of different ages and can easily cause discomfort and injury to the animals, affecting the accuracy of experimental results.
[0003] Neck or abdominal surgery is the most common type of surgery in mice. However, due to the large head, short neck, and kyphotic lumbar spine of mice, exposure during neck / abdomen surgery is difficult. In addition, mice are in a curled-up position in their natural state, and most existing devices do not stretch the mouse out of this curled-up position after fixing the body, failing to fully expose the abdomen for surgery, which has certain adverse effects on the researchers' use. To address the shortcomings of existing technologies, we propose a surgical fixation table for mouse dissection. Utility Model Content
[0004] To address the shortcomings of the existing technology, this invention aims to provide a surgical fixation table for exposing the neck / abdomen of mice. It utilizes a limb restraint assembly slidably connected to the operating table to quickly fix the limbs of mice of different sizes. A neck / abdomen positioning pad is used to fully expose the surgical area. Simultaneously, the angle of the suction tube is adjusted according to the mouse's different positions. Combined with the heating plate, this ensures the safe and smooth conduct of the surgery, thereby solving the problems existing in the prior art.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A surgical fixation table for exposing the neck / abdomen of a mouse includes an operating table on which:
[0007] A heating plate is connected to the center of the worktable;
[0008] The limb restraint assembly consists of four parts, each located at one of the four corners of the heating plate, and is movably connected to the operating table.
[0009] Anesthesia inhalation device is located at one end of the operating table corresponding to the mouse's head;
[0010] A neck positioning pad is detachably attached to the operating table and is located between the heating plate and the anesthesia inhalation unit;
[0011] Abdominal positioning pad, detachably attached to the top of the heating plate.
[0012] As a further preferred embodiment of the above solution, each limb restraint component is connected to an opening slot on the operating table via a guide rod. The limb restraint component includes a sliding part, a support part, and a limiting part. The sliding part is movably sleeved on the guide rod, and the limiting part is located above the sliding part. The sliding part and the limiting part are connected via the support part.
[0013] Based on the above technical solution, the limiting part further includes an arc-shaped clamping plate and a puller. The arc-shaped clamping plate is connected to the top of the support part, and the puller is located on the top of the arc-shaped clamping plate and connected to the support part.
[0014] Based on the above technical solution, furthermore, two pullers are provided and symmetrically distributed at both ends of the arc-shaped clamping plate, and each puller includes:
[0015] Auxiliary clamping posts are connected to the top of the arc-shaped clamping plate;
[0016] The limiting plate is located on one side of the auxiliary clamping column and connected to the top of the support.
[0017] The tie rod is connected to the side wall of the auxiliary clamping column and passes through the limiting plate;
[0018] An elastic element is positioned between the auxiliary clamping post and the limiting plate.
[0019] Based on the above technical solution, the support part further includes a straight strut and a diagonal strut. The two ends of the straight strut are connected to the sliding part and the arc-shaped clamping plate, respectively. There are two diagonal struts, which are located on both sides of the straight strut, and the two ends of the diagonal struts are connected to the sliding part and the limiting plate, respectively.
[0020] As a further preferred embodiment of the above solution, the anesthetic inhalation assembly includes a suction cartridge and an adjustment unit, the suction cartridge and the adjustment unit being detachably connected, and the adjustment unit being movably connected to the operating table.
[0021] Preferably, the adjustment part includes an adjustment plate and a support rod, the adjustment plate is movably connected to the operating table, and the support rod is connected to the operating table and abuts against the adjustment plate.
[0022] Compared with the prior art, the present invention can produce the following beneficial effects:
[0023] 1. By setting up limb restraint components and positioning pads, the mice are ensured to be stable and comfortable during the operation. The limb restraint components are slidably connected to the opening slot, which makes it easy to adjust the position according to the size of the mouse and achieve precise fixation of the mouse's limbs. In conjunction with the positioning pads, the surgical area is fully exposed while avoiding accidental movement of the mouse during the operation that could cause damage.
[0024] 2. By setting up an anesthesia inhalation assembly, the angle of the adjustment plate can be adjusted by using the support rod and the limiting strips at different positions. This allows the angle of the opening end of the inhalation cartridge to adapt to the changes in the mouse's body position, ensuring that the mouse inhales the anesthetic gas evenly and reducing surgical risks.
[0025] 3. This utility model utilizes a heating plate to maintain the body temperature of mice, reducing surgical risks. The detachable design of the heating plate facilitates cleaning and disinfection, extending its service life. The entire surgical fixation table is ingeniously designed and easy to operate, effectively improving surgical efficiency and safety. It is suitable for various mouse surgical experiments. Attached Figure Description
[0026] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings required in the embodiments will be briefly introduced below.
[0027] Figure 1 This is a schematic diagram of the overall structure of a surgical fixation table for exposing the neck / abdomen of a mouse according to the present invention;
[0028] Figure 2 This diagram shows the connection between the limb restraint component and the operating table of this utility model.
[0029] Figure 3 This is a front view of the limb restraint component of this utility model;
[0030] Figure 4 This is a three-dimensional structural diagram of the limb restraint component of this utility model;
[0031] Figure 5 This diagram shows the connection relationship between the anesthesia inhalation assembly and the operating table of this utility model.
[0032] Figure 6 This is a schematic diagram of the structure of the anesthetic inhalation assembly of this utility model;
[0033] Figure 7 This diagram shows the fit between the adjusting plate and the support rod of the anesthetic inhalation assembly of this utility model.
[0034] In the diagram: 1. Operating table; 2. Heating plate; 3. Limb restraint assembly; 31. Sliding part; 32. Support part; 321. Straight support rod; 322. Diagonal support rod; 33. Limiting part; 331. Clamping plate; 332. Auxiliary clamping column; 333. Limiting plate; 334. Pull rod; 335. Elastic element; 4. Anesthesia inhalation assembly; 41. Inhalation cartridge; 42. Adjustment part; 421. Adjustment plate; 422. Support rod; 423. Limiting strip; 424. Connecting column; 5. Neck positioning pad; 6. Abdominal positioning pad; 7. Guide rod. Detailed Implementation
[0035] The technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments, not all embodiments. For those skilled in the art, other embodiments can be obtained without creative effort.
[0036] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, 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 limitations on this utility model.
[0037] Example 1:
[0038] Reference Figure 1-4This invention relates to a surgical fixation table for exposing the neck / abdomen of a mouse. It includes an operating table 1 with legs at the bottom and anti-slip pads connected to the bottom of the legs. The operating table 1 is equipped with a heating plate 2, limb restraint components 3, an anesthesia inhalation component 4, a neck positioning pad 5, and an abdominal positioning pad 6. The heating plate 2 is detachably connected to the middle of the operating table 1. The heating plate 2 contains heating wires and a rechargeable battery connected to it, and is used to heat the mouse's torso when activated. Four limb restraint components 3 are located at the four corners of the heating plate 2 and are movably connected to the operating table 1 for quickly restraining the mouse's limbs. The anesthesia inhalation component 4 is located at the neck / abdomen of the operating table 1. The operating table 1, located at the head of the mouse, is used for the mouse to inhale anesthetic drugs. The neck positioning pad 5 is detachably connected to the operating table 1 and is located between the heating plate 2 and the anesthesia inhalation component 4. The abdominal positioning pad 6 is detachably connected to the top of the heating plate 2. In actual operation, the neck positioning pad 5 and the abdominal positioning pad 6 are used according to the surgical needs. The mouse is in a supine position. When the surgeon performs carotid artery dissection on the mouse, the neck positioning pad 5 is connected to elevate the mouse's neck, so that the mouse's neck is extended to fully expose the carotid artery. When the surgeon performs laparotomy on the mouse, the abdominal positioning pad 6 is connected to elevate the mouse's abdomen, so that the mouse's belly is extended to fully expose the skin in the abdominal cavity.
[0039] In this embodiment, the neck positioning pad 5 and the abdominal positioning pad 6 are connected to the operating table 1 and the heating plate 2 respectively by Velcro. Both the neck positioning pad 5 and the abdominal positioning pad 6 are made of soft and comfortable materials, such as latex or sponge. Specifically, the loop side of the Velcro is fixedly attached to the top of the operating table 1 and the heating plate 2, and the hook side of the Velcro is connected to the bottom of the neck positioning pad 5 and the abdominal positioning pad 6. The connection method of the neck positioning pad 5 and the abdominal positioning pad 6 is not limited to the above method. Other forms of connection, such as zippers, can also be used to achieve the same purpose.
[0040] like Figure 2 As shown, the operating table 1 is provided with four opening slots, which are distributed at the four corners of the heating plate 2. A guide rod 7 is fixedly connected in the opening slot. The limb restraint component 3 is movably sleeved on the outer wall of the guide rod 7. The position of the limb restraint component 3 is adaptively adjusted according to the size of different mice. Specifically, the limb restraint component 3 includes a sliding part 31, a support part 32, and a limiting part 33. The sliding part 31 is movably sleeved on the guide rod 7, and the limiting part 33 is located above the sliding part 31. The sliding part 31 and the limiting part 33 are connected by the support part 32.
[0041] More specifically, the sliding part 31 is a cylindrical tube that matches the diameter of the guide rod 7.
[0042] Reference Figure 3-4The limiting part 33 includes an arc-shaped clamping plate 331 and a puller. The arc-shaped clamping plate 331 is connected to the top of the support part 32. The arc-shaped clamping plate 331 is made of plastic material, such as PE or PVC. A protective pad is adhered to the inner wall of the arc-shaped clamping plate 331. The protective pad is made of latex, sponge or other materials. The puller is located at the top of the arc-shaped clamping plate 331 and is connected to the support part 32. There are two pullers and they are symmetrically distributed at both ends of the arc-shaped clamping plate 331.
[0043] In some preferred embodiments, each pull-out device includes an auxiliary clamping post 332, a limiting plate 333, a pull rod 334, and an elastic element 335. The auxiliary clamping post 332 is connected to the top of the arc-shaped clamping plate 331 and is made of latex material. The limiting plate 333 is located on the side wall of the auxiliary clamping post 332 and is connected to the top of the support part 32. The pull rod 334 is connected to the side wall of the auxiliary clamping post 332 and passes through the limiting plate 333. The elastic element 335 is disposed between the auxiliary clamping post 332 and the limiting plate 333. In this embodiment, the elastic element 335 is a spring, and two elastic elements 335 are provided and respectively connected to both sides of the pull rod 334.
[0044] Reference Figure 4 The support part 32 includes a straight support rod 321 and a diagonal support rod 322. The two ends of the straight support rod 321 are respectively connected to the sliding part 31 and the arc-shaped clamping plate 331. There are two diagonal support rods 322, which are located on both sides of the straight support rod 321, and the two ends of the diagonal support rod 322 are respectively fixedly connected to the sliding part 31 and the limiting plate 333.
[0045] Example 2:
[0046] To enable mice to better cooperate with surgical procedures, mice usually need to inhale anesthetic drugs. This embodiment is a further improvement on the anesthetic inhalation component 4 based on the above embodiment 1.
[0047] like Figure 5-7 As shown, the anesthesia inhalation assembly 4 includes a suction cartridge 41 and an adjustment part 42. The suction cartridge 41 and the adjustment part 42 are detachably connected, and the adjustment part 42 is movably connected to the operating table 1. In this embodiment, the suction cartridge 41 has a cylindrical structure and is made of transparent plastic material, which facilitates observation of the state of the mouse after inhaling the anesthetic drug. An inlet tube for connecting the anesthetic drug delivery tube is provided on the end face of the suction cartridge 41.
[0048] Specifically, refer to Figure 6-7, the adjusting part 42 includes an adjusting plate 421 and a support rod 422. An installation groove is provided at the front end of the operating table 1. The adjusting plate 421 is rotationally connected to the installation groove through a connecting column 424. An arc-shaped groove is provided at the top of the adjusting plate 421, and the medicine suction cylinder 41 is embedded in the arc-shaped groove. A plurality of limiting strips 423 are fixedly connected to the bottom of the adjusting plate 421. The support rod 422 is in a "ji" shape and is located below the adjusting plate 421, and its two ends are rotationally connected to the installation groove. The top of the support rod 422 abuts against the corresponding limiting strip 423.
[0049] Embodiment III:
[0050] A surgical fixing table for exposing the neck / abdomen of a mouse. During actual operation:
[0051] First, connect the neck body position pad 5 or the abdomen body position pad 6 according to the surgical requirements, place the mouse on the operating table 1, and use the neck body position pad 5 or the abdomen body position pad 6 to lift the neck or abdomen of the mouse to fully expose the area to be operated on;
[0052] Then, respectively limit the four limbs of the mouse on the limb restraint assembly 3 to stretch out the four limbs of the mouse; during actual operation of the limb restraint assembly 3, by gently pulling the two pull rods 334 to the two sides, the elastic member 335 is compressed, and the auxiliary clamping column 332 moves outward along with the pull rod 334. The two auxiliary clamping columns 332 drive the arc-shaped clamping plate 331 to deform and expand to the two sides. At this time, put the limb of the mouse into the arc-shaped clamping plate 331, release the two pull rods 334, and the auxiliary clamping column 332 rebounds to the initial position under the action of the elastic member 335 to tightly clamp the limb of the mouse, ensuring that the mouse remains stable during the operation and does not cause occlusion and interference to the surgical area;
[0053] Next, according to the height position of the mouse's head, by adjusting the support position of the support rod 422 at the bottom of the adjusting plate 421, abut the support rod 422 against the appropriate limiting strip 423, and better match the angle of the adjusting plate 421 with the mouse's head, so that the mouse's head extends into the medicine suction cylinder 41 for anesthesia, facilitating the smooth progress of the operation;
[0054] Finally, turn on the heating plate 2 and adjust it to an appropriate temperature to perform surgical operations on the mouse under normal heat preservation conditions.
[0055] It should be clear that the above detailed description of the embodiments of the present invention provided in the drawings is only for further illustration of the present invention, and is not intended to limit the scope of the present invention claimed, but only represents the selected embodiments of the present invention. Based on the embodiments of the present invention, some non-essential improvements and adjustments made by those of ordinary skill in the art according to the above content of the present invention all fall within the protection scope of the present invention.
Claims
1. A surgical fixation table for exposing the neck / abdomen of a mouse, comprising an operating table (1), characterized in that, The control panel (1) is equipped with: Heating plate (2), which is connected to the middle of the operating table (1); The limb restraint assembly (3) has four parts, which are located at the four corners of the heating plate (2), and the limb restraint assembly (3) is movably connected to the operating table (1); Anesthesia inhalation assembly (4) is set at one end of the operating table (1) corresponding to the mouse's head; The neck positioning pad (5) is detachably connected to the operating table (1) and is located between the heating plate (2) and the anesthesia inhalation assembly (4); An abdominal positioning pad (6) is detachably attached to the top of a heating plate (2).
2. The surgical fixation table for exposing the neck / abdomen of a mouse according to claim 1, characterized in that, Each limb restraint component (3) is connected to the opening slot on the operating table (1) via a guide rod (7). The limb restraint component (3) includes a sliding part (31), a support part (32), and a limiting part (33). The sliding part (31) is movably sleeved on the guide rod (7), and the limiting part (33) is located above the sliding part (31). The sliding part (31) and the limiting part (33) are connected via the support part (32).
3. A surgical fixation table for exposing the neck / abdomen of a mouse according to claim 2, characterized in that, The limiting part (33) includes an arc-shaped clamping plate (331) and a puller. The arc-shaped clamping plate (331) is connected to the top of the support part (32), and the puller is located on the top of the arc-shaped clamping plate (331) and connected to the support part (32).
4. A surgical fixation table for exposing the neck / abdomen of a mouse according to claim 3, characterized in that, Two pullers are provided and symmetrically distributed at both ends of the arc-shaped clamping plate (331). Each puller includes: A secondary clamping post (332) is connected to the top of the arc-shaped clamping plate (331); The limiting plate (333) is located on one side of the auxiliary clamping column (332) and connected to the top of the support (32); A pull rod (334) is connected to the side wall of the auxiliary clamping column (332) and passes through the limiting plate (333). An elastic element (335) is disposed between the auxiliary clamping post (332) and the limiting plate (333).
5. A surgical fixation table for exposing the neck / abdomen of a mouse according to claim 4, characterized in that, The support part (32) includes a straight support rod (321) and a diagonal support rod (322). The two ends of the straight support rod (321) are connected to the sliding part (31) and the arc-shaped clamping plate (331) respectively. There are two diagonal support rods (322), which are located on both sides of the straight support rod (321) respectively, and the two ends of the diagonal support rod (322) are connected to the sliding part (31) and the limiting plate (333) respectively.
6. A surgical fixation table for exposing the neck / abdomen of a mouse according to claim 1, characterized in that, The anesthetic inhalation assembly (4) includes a suction cartridge (41) and an adjustment unit (42). The suction cartridge (41) and the adjustment unit (42) are detachably connected, and the adjustment unit (42) is movably connected to the operating table (1).
7. A surgical fixation table for exposing the neck / abdomen of a mouse according to claim 6, characterized in that, The adjustment unit (42) includes an adjustment plate (421) and a support rod (422). The adjustment plate (421) is movably connected to the operating table (1), and the support rod (422) is connected to the operating table (1) and abuts against the adjustment plate (421).