Small animal breathing machine
By designing multiple breathing adjustment devices and partition designs, the problems of ventilation pressure injury, low ventilation efficiency of multiple animals and airflow mixing are solved, and safe and efficient ventilation of multiple animals and accurate detection data are achieved.
Patent Information
- Application Number
- CN202421014952.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-11
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2034-05-11
AI Technical Summary
Existing small animal ventilators may cause lung pressure damage on ventilation pressure and cannot provide ventilation for multiple small animals at the same time, affecting the efficiency of the experiment, and exhalation and inhalation may be over-mixed, resulting in inaccurate detection data.
A small animal ventilator is designed, using multiple breathing adjustment devices to achieve simultaneous ventilation of multiple animals, and the ventilation pressure is adjusted through an electrically controlled valve and a manometer; at the same time, a partition design and a one-way valve are used to separate the airflow of exhaled and inhaled air.
It effectively reduces ventilation pressure, avoids lung pressure injury, improves experimental efficiency, ensures separation of breathing air flow, and improves the accuracy of detection data.
Smart Images
Figure CN222605155U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of animal medicine, in particular to a ventilator for small animals. Background Art
[0002] Animal ventilators are commonly used experimental equipment, widely used in artificial respiration, respiratory management, animal first aid, respiratory therapy, etc. in scientific research experiments such as basic medicine, clinical medicine and veterinary medicine. They are accurate in control, convenient and practical, do not require a high-pressure gas source, have accurate tidal volume output and stable performance. At present, small animal ventilators mainly use capacity control mode for ventilation, which can ensure the tidal volume, that is, the amount of gas entering and expelled with each breath. This is crucial to ensure that small animals obtain stable ventilation during the experiment. Existing small animal ventilators usually have the function of adjusting tidal volume, respiratory rate and inspiration-expiration ratio to meet the needs of small animals of different sizes and types.
[0003] However, the existing technology has several major drawbacks:
[0004] 1. Pressure injury caused by high ventilation pressure: While ensuring the tidal volume, the volume control mode may produce higher ventilation pressure, which may cause pressure injury to the lungs of small animals.
[0005] 2. Single small animal ventilation limitation: Most existing ventilators can only provide ventilation for one small animal at a time, which limits the efficiency of the experiment, especially when experiments need to be conducted on multiple small animals at the same time.
[0006] 3. Exhaled and inhaled air mixing: In existing ventilators, exhaled and inhaled air may be excessively mixed in the pipeline, which will cause inaccurate test data and affect the reliability of experimental results. Utility Model Content
[0007] In view of the above problems, the utility model provides a small animal ventilator for solving the problems in the background technology, which can realize simultaneous ventilation and pressure regulation of multiple animals and reduce the test accuracy affected by excessive mixing of exhalation and inspiration.
[0008] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0009] A small animal ventilator, comprising a ventilator body, wherein the air outlet connecting pipe of the ventilator body is connected to the main air outlet pipe, and the air intake connecting pipe is connected to the main air intake pipe; a breathing adjustment device is connected between the main air outlet pipe and the main air intake pipe; the breathing adjustment device comprises an air cavity component, and the two ends of the air cavity component are respectively connected to a branch air inlet pipe and a branch air outlet pipe; a first electrically controlled valve is arranged on the branch air inlet pipe; a second electrically controlled valve is arranged on the branch air outlet pipe; a breathing tube is connected to one side of the air cavity component; the breathing tube is connected to a breathing mask; a partition is axially arranged in the center of the breathing tube, dividing the inner cavity of the breathing tube into a first cavity and a second cavity; the tail end of the partition extends into the air cavity component and divides the air cavity component into two cavities; a sealing plate is arranged at the front end of the partition; a first one-way valve and a second one-way valve are respectively arranged on the sealing plate; the first one-way valve and the second one-way valve are respectively connected to the first cavity and the second cavity.
[0010] As a further improvement of the above scheme, the breathing regulating device is provided with multiple ones, and the branch air inlet pipe of each breathing regulating device is connected to the main air outlet pipe, and the branch air outlet pipe is connected to the main air intake pipe.
[0011] As a further improvement of the above solution, a pressure gauge is provided on the air cavity component; the pressure gauge is located at one end of the air cavity component connected to the branch air inlet pipe.
[0012] As a further improvement of the above scheme, it also includes a box for housing small animals; each box corresponds to a breathing adjustment device; and the breathing tube extends into the box.
[0013] As a further improvement of the above solution, the first one-way valve and the second one-way valve are medical plastic one-way valves.
[0014] Compared with the prior art, the beneficial effects of the utility model are:
[0015] 1. Simultaneous ventilation for multiple animals: By setting up multiple breathing adjustment devices, this ventilator can provide ventilation for multiple small animals at the same time, significantly improving the experimental efficiency.
[0016] 2. Pressure regulation: By setting a pressure gauge and an electric control valve on the air chamber component, this ventilator can adjust the air intake and air output according to the needs of different small animals, thereby avoiding pressure damage caused by high ventilation pressure.
[0017] 3. Breathing tube partition design: This ventilator adopts a partition design, which divides the inner cavity of the breathing tube into two cavities, and cooperates with a one-way valve to ensure that the exhaled and inhaled gases are effectively separated, ensuring that the small animals get enough oxygen when breathing, while avoiding excessive mixing of exhalation and inhalation. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1It is a schematic diagram of the overall structure of the utility model.
[0019] Figure 2 This is a schematic diagram of the structure of the breathing regulation device.
[0020] Figure 3 It is a schematic diagram of the installation structure of the box body and the breathing tube.
[0021] Figure 4 This is a schematic diagram of the one-way valve installation structure in the breathing tube.
[0022] In the figure: 1. ventilator body; 2. outlet connecting pipe; 3. main outlet pipe; 4. breathing adjustment device; 5. breathing mask; 6. main inhalation pipe; 7. inhalation connecting pipe; 9. pressure gauge; 10. sealing plate; 11. box body; 41. branch air inlet pipe; 42. first electric control valve; 43. air cavity component; 44. breathing tube; 45. first one-way valve; 46. second one-way valve; 47. partition; 48. branch outlet pipe; 49. second electric control valve. DETAILED DESCRIPTION
[0023] In order to enable those skilled in the art to better understand the technical solution, the utility model is described in detail below in conjunction with embodiments. The description in this section is only exemplary and explanatory and should not have any limiting effect on the protection scope of the utility model.
[0024] Embodiment 1:
[0025] like Figure 1-4 As shown, the specific scheme of this embodiment is: a small animal ventilator, including a ventilator body 1, the outlet connecting pipe 2 of the ventilator body 1 is connected to the main outlet pipe 3, and the inhalation connecting pipe 7 is connected to the main inhalation pipe 6; a breathing regulating device 4 is connected between the main outlet pipe 3 and the main inhalation pipe 6; the breathing regulating device 4 includes an air cavity component 43, and the two ends of the air cavity component 43 are respectively connected to a branch air inlet pipe 41 and a branch air outlet pipe 48; a first electric control valve 42 is arranged on the branch air inlet pipe 41; a second electric control valve 49 is arranged on the branch air outlet pipe 48 ; A breathing tube 44 is connected to one side of the air cavity component 43; the breathing tube 44 is connected to the breathing mask 5; a partition 47 is arranged in the center of the breathing tube 44 along the axial direction to divide the inner cavity of the breathing tube 44 into a first cavity and a second cavity; the rear end of the partition 47 extends into the air cavity component 43 and divides the air cavity component 43 into two cavities; a sealing plate 10 is arranged at the front end of the partition 47; the sealing plate 10 is respectively provided with a first one-way valve 45 and a second one-way valve 46; the first one-way valve 45 and the second one-way valve 46 are connected to the first cavity and the second cavity respectively. The first one-way valve 45 and the second one-way valve 46 are medical plastic one-way valves.
[0026] Specifically, a plurality of breathing regulating devices 4 are provided, and the branch air inlet pipe 41 of each breathing regulating device 4 is connected to the main air outlet pipe 3 , and the branch air outlet pipe 48 is connected to the main air intake pipe 6 .
[0027] A pressure gauge 9 is provided on the air cavity component 43 ; the pressure gauge 9 is located at one end of the air cavity component 43 connected to the branch air inlet pipe 41 .
[0028] like Figure 3 As shown, as a preferred embodiment of the above embodiment, it also includes a box 11 for housing small animals; each box 11 corresponds to a breathing adjustment device 4; and a breathing tube 44 extends into the box 11.
[0029] Embodiment 2:
[0030] 1. The main body 1 of the ventilator is made of lightweight alloy material to reduce the weight of the whole machine and facilitate movement and operation.
[0031] 2. The air outlet connecting tube 2 and the air inlet connecting tube 7 are both made of medical grade silicone material to ensure the safety and hygiene during the gas transmission process.
[0032] 3. The breathing regulating device 4 includes an air cavity component 43 with a capacity of 500 ml, and a branch air inlet pipe 41 and a branch air outlet pipe 48 with a length of 30 cm are connected to the two ends respectively.
[0033] 4. The first electrically controlled valve 42 and the second electrically controlled valve 49 are both micro electromagnetic valves that can accurately control the airflow.
[0034] 5. The breathing tube 44 is 1 meter long and has an inner diameter of 2 centimeters. The partition 47 is made of medical plastic material, and the tail end extends into the air cavity component 43 for 10 centimeters.
[0035] 6. The breathing mask 5 is made of transparent silicone material and is suitable for use on rats and mice.
[0036] 7. The first one-way valve 45 and the second one-way valve 46 in the breathing tube 44 are both small plastic one-way valves to ensure one-way flow of air.
[0037] Embodiment 3:
[0038] 1. The main body 1 of the ventilator is made of stainless steel to improve the durability and stability of the equipment.
[0039] 2. The main air outlet pipe 3 and the main air intake pipe 6 are made of medical-grade PVC pipes with a diameter of 5 cm to accommodate gas transmission with a larger flow rate.
[0040] 3. The capacity of the air chamber component 43 of the breathing regulating device 4 is increased to 1000 ml to meet the breathing needs of large animals.
[0041] 4. The length of the branch air inlet pipe 41 and the branch air outlet pipe 48 is increased to 50 cm to provide a more flexible connection method.
[0042] 5. The breathing tube 44 adopts a double-layer structure, the outer layer is a protective layer, the inner layer is an air guide layer, and the extension length of the partition 47 is increased to 15 cm.
[0043] 6. The breathing mask 5 is equipped with an adjustment strap, which can be adjusted according to the head size of different animals.
[0044] 7. The one-way valve in the breathing tube 44 is upgraded to a medical-grade metal one-way valve, which improves the accuracy and reliability of airflow control.
[0045] Embodiment 4:
[0046] 1. The main body 1 of the ventilator is integrated with an intelligent control system and can be operated through a touch screen.
[0047] 2. The main air outlet pipe 3 and the main air intake pipe 6 are equipped with built-in sensors to monitor the air flow speed and pressure in real time.
[0048] 3. The air chamber component 43 of the breathing adjustment device 4 integrates temperature and humidity sensors to adjust the comfort level of the gas.
[0049] 4. The branch air inlet pipe 41 and the branch air outlet pipe 48 are designed to be retractable, and the length can be adjusted according to usage requirements.
[0050] 5. The breathing tube 44 has a built-in heater to prevent the gas from cooling during transmission.
[0051] 6. The breathing mask 5 is made of deformable memory material and can automatically adjust the fit according to the animal's facial shape.
[0052] 7. The one-way valve in the breathing tube 44 is electronically controlled and can automatically adjust the switch according to the breathing rhythm.
[0053] Specific usage of this utility model:
[0054] The main body 1 of the ventilator has the function of adjusting the tidal volume, respiratory frequency and inhalation-exhalation ratio. This product can be used for multiple small animals to breathe at the same time. According to the needs of different small animals, the opening of the first electric control valve 42 can be adjusted to adjust the pressure in the air cavity component 43, that is, the air supply speed. The inhalation speed can be adjusted by adjusting the second electric control valve 49 to meet the needs of different small animals. The pressure gauge 9 measures the pressure at the air supply end in the air cavity component 43 and feeds it back to the control circuit. The control circuit controls the opening of the first electric control valve 42 and the second electric control valve 49 according to preset parameters. When there is no small animal in one of the boxes 11, the first electric control valve 42 and the second electric control valve 49 can be closed; the air supply generated by the main body 1 of the ventilator can pass through the first one-way valve 45 to enter the breathing mask 5, and the gas exhaled by the small animal can pass through the second one-way valve 46 to enter the branch outlet pipe 48, so the mixing degree of exhalation and inhalation is low, which improves the accuracy of breathing control.
[0055] In the utility model, a breathing regulating device 4 is configured for each small animal's breathing, and the air intake speed and the air outlet speed can be controlled separately, so as to control the breathing volume and speed according to the conditions of different small animals.
[0056] It should be noted that, in this article, the terms include, contain or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. Specific examples are used in this article to illustrate the principle and implementation of the technical solution of the utility model. The above examples are only used to help understand the method and core idea of the utility model. The above are only preferred implementations of the utility model. It should be pointed out that due to the limitations of textual expression and the objective existence of infinite specific structures, for ordinary technicians in this technical field, without departing from the principle of the utility model, several improvements, modifications or changes can be made, and the above technical features can also be combined in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without improvement, should be regarded as the protection scope of the utility model.
Claims
1. A small animal ventilator, comprising a ventilator body (1), characterized in that: The outlet connecting pipe (2) of the ventilator body (1) is connected to the main outlet pipe (3), and the inhalation connecting pipe (7) is connected to the main inhalation pipe (6); a breathing regulating device (4) is connected between the main outlet pipe (3) and the main inhalation pipe (6); the breathing regulating device (4) comprises an air cavity component (43), and the two ends of the air cavity component (43) are respectively connected to a branch air inlet pipe (41) and a branch air outlet pipe (48); a first electric control valve (42) is arranged on the branch air inlet pipe (41); a second electric control valve (49) is arranged on the branch air outlet pipe (48); one side of the air cavity component (43) is connected to the main inhalation pipe (6); the other ... A breathing tube (44) is provided; the breathing tube (44) is connected to a breathing mask (5); a partition (47) is arranged axially in the center of the breathing tube (44) to divide the inner cavity of the breathing tube (44) into a first cavity and a second cavity; the rear end of the partition (47) extends into the air cavity component (43) to divide the air cavity component (43) into two cavities; a sealing plate (10) is arranged at the front end of the partition (47); a first one-way valve (45) and a second one-way valve (46) are respectively arranged on the sealing plate (10); the first one-way valve (45) and the second one-way valve (46) are respectively connected to the first cavity and the second cavity.
2. A small animal ventilator according to claim 1, characterized in that: The breathing regulating device (4) is provided with a plurality of them, and the branch air inlet pipe (41) of each breathing regulating device (4) is connected to the main air outlet pipe (3), and the branch air outlet pipe (48) is connected to the main air intake pipe (6).
3. A small animal ventilator according to claim 1, characterized in that: The air cavity component (43) is provided with a pressure gauge (9); the pressure gauge (9) is located at one end of the air cavity component (43) connected to the branch air inlet pipe (41).
4. A small animal ventilator according to claim 1, characterized in that: It also includes a box (11) for housing small animals; each box (11) corresponds to a breathing adjustment device (4); and the breathing tube (44) extends into the box (11).
5. A small animal ventilator according to claim 1, characterized in that: The first one-way valve (45) and the second one-way valve (46) are medical plastic one-way valves.