Portable experimental rat milk collecting device

Abstract

The utility model relates to the technical field of physiological sample collection, and discloses a portable experimental rat milk collecting device which comprises an air suction device, a flat-head needle connector and a connecting pipe, the air suction device comprises a sampling pipe and a core rod, one end of the sampling pipe is fixedly connected with a flat-head needle, the core rod is arranged in the sampling pipe in a sliding mode, and the flat-head needle connector is connected with the core rod. A collecting catheter is fixedly connected to one side of the flat-head needle connector, a connecting pipe is fixedly connected to the end, away from the flat-head needle connector, of the collecting catheter, an extraction pipe is fixedly connected to one side of the connecting pipe, and a collecting head is fixedly connected to the end, away from the connecting pipe, of the extraction pipe. The portable experimental rat milk collecting device is composed of the air suction device, the flat-head needle connector, the connecting pipe, the collecting catheter, the collecting head and the like, all the parts are tightly connected and are reasonable in design, and therefore the whole device is small in size and convenient to carry and move; the rat milk collecting device is very suitable for collecting rat milk in a laboratory or in the field.

Description

Technical Field

[0001] This application relates to the field of physiological sample collection technology, specifically a portable device for collecting laboratory rat milk. Background Technology

[0002] For a long time, the collection of physiological samples from laboratory animals has been an important part of biomedical research. Especially in mammalian research, breast milk, as an important physiological substance, has significant implications for understanding the health status of the mother and the growth and development of the offspring during lactation.

[0003] Existing collection devices, with their complex instrument configurations, increase experimental costs and hinder large-scale deployment. The operational difficulties lead to inconsistent experimental results. More importantly, the lack of specialized tools for small rodents makes handling such subjects quite complicated. Utility Model Content

[0004] To address the shortcomings of existing technologies, this application provides a portable experimental rat milk collection device, which has the advantages of being easy to use. It solves the problems of existing collection devices, which use complex instrument configurations that increase experimental costs and are not conducive to large-scale promotion. The difficulty of operation leads to inconsistent experimental results. More importantly, the lack of specialized tools for small rodents makes handling such subjects a relatively complex problem.

[0005] To achieve the above objectives, this application provides the following technical solution: a portable experimental rat milk collection device, comprising an inhalation device, a flat-headed needle connector, and a connecting tube. The inhalation device includes a sampling tube and a core rod. One end of the sampling tube is fixedly connected to a flat-headed needle. The core rod is slidably disposed inside the sampling tube. A collection conduit is fixedly connected to one side of the flat-headed needle connector. A connecting tube is fixedly connected to the end of the collection conduit away from the flat-headed needle connector. An extraction tube is fixedly connected to one side of the connecting tube. A collection head is fixedly connected to the end of the extraction tube away from the connecting tube.

[0006] The device, constructed using the aforementioned scheme, comprises a suction device, a flat-headed needle connector, a connecting tube, a collection tube, and a collection head. The components are tightly connected and rationally designed, resulting in a compact and portable device ideal for collecting rat milk in the laboratory or field. The core rod in the suction device can slide inside the sampling tube; pushing or pulling the core rod allows for easy control of the air pressure inside the sampling tube, thus facilitating milk collection. The collection head design allows users to easily place the device on the experimental rat for milk collection. The flat-headed needle connector is tightly connected to the collection tube and connecting tube, and the sliding needle within the connector ensures a tight seal during milk collection, effectively preventing leakage and waste. Due to the suction device design, users can adjust the air pressure inside the sampling tube by controlling the sliding speed and force of the core rod, achieving precise control over the amount of milk collected. This device boasts advantages such as compact structure, ease of operation, good sealing, high collection efficiency, and wide applicability.

[0007] Furthermore, fins are fixedly connected to one side of the outer wall of the sampling tube, and graduations are provided on the outer wall of the sampling tube.

[0008] The above design allows users to control the device more stably when holding the sampling tube, reducing sampling errors or accidents caused by slipping or unstable grip. The scale can accurately display the amount of milk inside the sampling tube, and users can accurately control the amount of milk collected according to experimental needs, improving the accuracy and reliability of the experiment.

[0009] Furthermore, a fixing plate is fixedly connected to one side of the core rod, and an installation rod is fixedly connected to the end of the fixing plate away from the core rod. Two fixing strips arranged in a mirror image are fixedly connected to the outside of the installation rod. A piston head is slidably arranged on the outer wall of the installation rod. Two fixing grooves arranged in a mirror image are opened on the inner wall of the piston head. An installation groove is opened at the upper end of the piston head. A pressing plate is fixedly connected to the end of the core rod away from the fixing plate.

[0010] With the above solution, the piston head can slide on the outer wall of the mounting rod. The cooperation between the fixing groove and the fixing strip allows the piston head to be fixed on the outer wall of the mounting rod, so that the user can control the position of the piston head by pushing or pulling the pressing plate, thereby adjusting the air pressure inside the sampling tube and realizing the collection of milk.

[0011] Furthermore, the flat-head pin connector is externally fixedly provided with three reinforcing ribs arranged in a circular array, and the flat-head pin connector is internally fixedly connected with two first sealing rings arranged in a mirror distribution.

[0012] The above-mentioned design significantly improves the structural strength of the flat-head pin connector by adding reinforcing ribs. These reinforcing ribs are distributed in a ring array on the outside of the connector, which can effectively resist external impact and compression, and prevent the connector from deforming or being damaged during use. The first sealing ring ensures the sealing performance between the flat-head pin connector and the flat-head pin, preventing leakage of milk during collection.

[0013] Furthermore, the flat-head pin is slidably disposed inside the flat-head pin connector.

[0014] With the above solution, when the flat-head pin slides to the appropriate position, it can fit tightly with the first sealing ring inside the flat-head pin connector to form an effective seal. The sliding fit design of the flat-head pin and the flat-head pin connector also takes into account the convenience of cleaning and maintenance. When cleaning or replacing the extraction device is required, the user can easily remove it from the flat-head pin connector.

[0015] Furthermore, a second sealing ring is fixedly installed on the side of the collection head away from the extraction tube, and hand-held plates are fixedly connected to both sides of the outer wall of the extraction tube.

[0016] Through the above scheme, the setting of the second sealing ring significantly enhances the sealing performance of the contact area between the collection head and the experimental rat's body, preventing milk leakage during collection and ensuring that the collected milk volume is accurate and uncontaminated. The design of the hand plate allows the user to hold the extraction tube and collection head more stably, thereby maintaining better control and stability when collecting milk.

[0017] Furthermore, the fixing plate is slidably disposed inside the mounting groove, and both fixing strips are slidably disposed inside the fixing groove.

[0018] With the above scheme, both fixing strips are slidably set inside the fixing groove, and the fixing plate is slidably set inside the mounting groove. This design enables a stable sliding connection between the core rod and the piston head.

[0019] Furthermore, the outer wall of the piston head has two grooves arranged in a mirror image.

[0020] The groove design, as described above, helps reduce the resistance of the piston head sliding in the sampling tube, allowing the piston head to move more smoothly inside the sampling tube, thereby improving the collection efficiency.

[0021] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0022] This portable experimental rat milk collection device comprises an air intake device, a flat-headed pin connector, a connecting tube, a collection tube, and a collection head. The components are tightly connected and rationally designed, resulting in a compact and portable device ideal for collecting rat milk in the laboratory or field. The core rod in the air intake device can slide inside the sampling tube. By pushing or pulling the core rod, the air pressure inside the sampling tube can be easily controlled, thus achieving milk collection. The collection head design allows users to easily place the device on the experimental rat for milk collection. The flat-headed pin connector is tightly connected to the collection tube and connecting tube, and the flat-headed pin can slide inside the connector. This design ensures the device's airtightness during milk collection, effectively preventing leakage and waste. Due to the air intake device design, users can adjust the air pressure inside the sampling tube by controlling the sliding speed and force of the core rod, thus achieving precise control of the milk collection volume. This device has advantages such as compact structure, simple operation, good sealing, high collection efficiency, and wide applicability. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this application;

[0024] Figure 2 This is a schematic diagram of the overall structure of this application;

[0025] Figure 3 This is a schematic diagram of the internal structure of the extraction device in this application.

[0026] Figure 4 This is a schematic diagram of the extraction rod structure of this application.

[0027] In the picture:

[0028] 1. Suction device; 101. Sampling tube; 102. Core rod; 103. Flat-head needle; 104. Fin; 105. Scale; 106. Fixing plate; 107. Mounting rod; 108. Fixing strip; 109. Piston head; 110. Fixing groove; 111. Mounting groove; 112. Groove; 113. Pressing plate; 2. Flat-head needle connector; 3. Collection tube; 4. Reinforcing rib; 5. First sealing ring; 6. Connecting tube; 7. Extraction tube; 8. Collection head; 9. Second sealing ring; 10. Handheld plate. Detailed Implementation

[0029] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0030] Please see Figure 1 , Figure 2 and Figure 3 In this embodiment, a portable experimental rat milk collection device includes an air intake device 1, a flat-headed needle connector 2, and a connecting tube 6. The air intake device 1 includes a sampling tube 101 and a core rod 102. One end of the sampling tube 101 is fixedly connected to a flat-headed needle 103. The core rod 102 is slidably disposed inside the sampling tube 101. By pushing or pulling the core rod 102, the air pressure inside the sampling tube 101 can be easily controlled, thereby realizing the collection of milk. A collection conduit 3 is fixedly connected to one side of the flat-headed needle connector 2. The end of the collection catheter 3 away from the flat-headed needle connector 2 is fixedly connected to the connecting tube 6. The side of the connecting tube 6 is fixedly connected to the extraction tube 7. The end of the extraction tube 7 away from the connecting tube 6 is fixedly connected to the collection head 8. The design of the collection head 8 allows the user to easily place the device on the experimental rat. The device is composed of components such as the inhalation device 1, the flat-headed needle connector 2, the connecting tube 6, the collection catheter 3, and the collection head 8. The components are tightly connected and reasonably designed, making the whole device small in size, easy to carry and move, and very suitable for collecting rat milk in the laboratory or in the field.

[0031] Please see Figure 1 , Figure 3 and Figure 4A fin 104 is fixedly connected to one side of the outer wall of the sampling tube 101. A scale 105 is provided on the outer wall of the sampling tube 101. The design of the fin 104 allows the user to control the device more stably when holding the sampling tube 101, reducing sampling errors or accidents caused by slipping or unstable grip. The scale 105 can accurately display the amount of milk inside the sampling tube 101, allowing the user to accurately control the amount of milk collected according to experimental needs, improving the accuracy and reliability of the experiment. A fixing plate 106 is fixedly connected to one side of the core rod 102. A mounting rod 107 is fixedly connected to the end of the fixing plate 106 away from the core rod 102. Two mirror-distributed mounting rods are fixedly connected to the outside of the mounting rod 107. The mounting rod 107 has a piston head 109 that slides on its outer wall. The piston head 109 has two mirror-shaped fixing grooves 110 on its inner wall. The upper end of the piston head 109 has a mounting groove 111. The end of the core rod 102 away from the fixing plate 106 is fixedly connected to a pressing plate 113. The piston head 109 can slide on the outer wall of the mounting rod 107. The cooperation between the fixing grooves 110 and the fixing strip 108 allows the piston head 109 to be fixed on the outer wall of the mounting rod 107. This allows the user to control the position of the piston head 109 by pushing or pulling the pressing plate 113, thereby adjusting the air pressure inside the sampling tube 101 and collecting milk.

[0032] Please see Figure 2 , Figure 3 and Figure 4The flat-head pin connector 2 has three reinforcing ribs 4 arranged in a ring array on its exterior. Inside the flat-head pin connector 2, two first sealing rings 5 ​​are fixedly connected in a mirror-shaped arrangement. The reinforcing ribs 4 significantly improve the structural strength of the flat-head pin connector 2. These reinforcing ribs 4, distributed in a ring array on the outside of the connector, can effectively resist external impacts and compression, preventing deformation or damage to the connector during use. The first sealing rings 5 ​​ensure the sealing performance between the flat-head pin connector 2 and the flat-head pin 103, preventing leakage of milk during collection. The flat-head pin 103 is slidably disposed inside the flat-head pin connector 2. When the flat-head pin 103 slides to the appropriate position, it can tightly engage with the first sealing ring 5 inside the flat-head pin connector 2 to form an effective seal. The sliding engagement design of the flat-head pin 103 and the flat-head pin connector 2 also considers the convenience of cleaning and maintenance. When cleaning or replacing the extraction device is required, the user can easily remove it from the flat-head pin connector 2. A second sealing ring 9 is fixedly disposed on the side of the collection head 8 away from the extraction tube 7. Handheld plates 10 are fixedly connected to both sides of the outer wall of the extraction tube 7. The second sealing ring 9 significantly enhances the sealing performance of the contact area between the collection head 8 and the experimental rat's body, preventing milk leakage during collection and ensuring accurate and uncontaminated milk collection. The design of the handheld plates 10 allows the user to hold the extraction tube 7 and collection head 8 more stably, thus maintaining better control and stability during milk collection. The fixing plate 106 is slidably disposed inside the mounting groove 111, and the two fixing strips 108 are slidably disposed inside the fixing groove 110. The fixing plate 106 is slidably disposed inside the mounting groove 111. This design allows a stable sliding connection between the core rod 102 and the piston head 109. The outer wall of the piston head 109 has two mirror-distributed grooves 112. The grooves 112 help reduce the resistance of the piston head 109 sliding in the sampling tube 101, allowing the piston head 109 to move more smoothly inside the sampling tube 101, thereby improving collection efficiency.

[0033] In this embodiment, a portable experimental rat milk collection device is provided. The device comprises an air intake device 1, a flat-headed needle connector 2, a connecting tube 6, a collection conduit 3, and a collection head 8. The components are tightly connected and rationally designed, resulting in a compact and portable device that is ideal for collecting rat milk in the laboratory or field. The core rod 102 in the air intake device 1 can be slidably positioned inside the sampling tube 101. By pushing or pulling the core rod 102, the air pressure inside the sampling tube 101 can be easily controlled, thereby achieving milk collection. Simultaneously, the design of the collection head 8 allows the user to easily... The device is placed on experimental rats to collect milk. The flat-headed needle connector 2 is tightly connected to the collection catheter 3, connecting tube 6, and other components. The flat-headed needle 103 can be slidably installed inside the flat-headed needle connector 2. This design ensures the airtightness of the entire device during milk collection, effectively preventing milk leakage and waste. Due to the design of the air suction device 1, the user can adjust the air pressure inside the sampling tube 101 by controlling the sliding speed and force of the core rod 102, thereby achieving precise control of the milk collection volume. The device has the advantages of compact structure, simple operation, good sealing, high collection efficiency, and wide applicability.

[0034] It should be noted that the collection head 8 is made of a transparent plastic shell with a length of 4 mm and an inner diameter that gradually decreases from 4.15 mm to 0.35 mm. It is used to fix the rat's nipple and the opening of the mammary duct. Then, the milk is sucked into the milk collection tube 3 through the suction device 1 and drawn into the collection tube.

[0035] The working principle of the above embodiments is as follows:

[0036] The user first ensures that the inhalation device 1, flat-head connector 2, connecting tube 6, collection tube 3, and collection head 8 are correctly connected. The flat-head needle 103 is slidably disposed inside the flat-head connector 2, tightly engaging with the first sealing ring 5 inside the flat-head connector 2 to form an effective seal. The user holds the handgrip 10, stably holding the extraction tube 7 and collection head 8. The collection head 8 is designed with a specific size and shape to fix the rat's nipple and mammary duct opening. The user gently places the collection head 8 on the experimental rat's nipple, ensuring that the second sealing ring 9 is in close contact with the rat's body to prevent milk leakage. The piston head 109 can slide on the outer wall of the mounting rod 107 and pass through the fixing groove 11. The core rod 102 and piston head 109 are fixed to the outer wall of the mounting rod 107 by the cooperation of the fixing strip 108. The user slowly pulls the pressing plate 113, which moves the core rod 102 and piston head 109 inside the sampling tube 101, thereby reducing the air pressure inside the sampling tube 101 and starting to extract milk. The milk enters the extraction tube 7 through the collection head 8, and then flows into the sampling tube 101 through the connecting tube 6 and the collection conduit 3. The user can accurately control the amount of milk collected by observing the scale 105 on the outer wall of the sampling tube 101. When the required amount of milk is reached, the user stops pulling the pressing plate 113 and gently removes the collection head 8 from the nipple of the experimental rat. After the collection is completed, the user needs to clean and maintain the device.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0038] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A portable experimental rat milk collection device comprising a suction device (1), a flat needle connector (2) and a connecting tube (6), characterized in that: The air suction device (1) includes a sampling pipe (101) and a core rod (102), one end of the sampling pipe (101) is fixedly connected with a flat needle (103), the core rod (102) is slidably arranged in the sampling pipe (101), one side of the flat needle connector (2) is fixedly connected with a collection guide pipe (3), one end of the collection guide pipe (3) away from the flat needle connector (2) is fixedly connected with a connecting pipe (6), one side of the connecting pipe (6) is fixedly connected with a pumping pipe (7), one end of the pumping pipe (7) away from the connecting pipe (6) is fixedly connected with a collection head (8).

2. The portable experimental rat milk collection device of claim 1, wherein: The sampling pipe (101) is fixedly connected with a fin (104) on one side of the outer wall, and the sampling pipe (101) is provided with a scale (105) on the outer wall.

3. The portable experimental rat milk collection device of claim 1, wherein: The core rod (102) is fixedly connected with a fixed plate (106) on one side, and the fixed plate (106) is fixedly connected with a mounting rod (107) away from the core rod (102), the mounting rod (107) is fixedly connected with two fixed strips (108) arranged in mirror image on the outside, and the mounting rod (107) is slidably provided with a piston head (109) on the outer wall, the piston head (109) is provided with two fixed grooves (110) arranged in mirror image in the inner wall, and the piston head (109) is provided with a mounting groove (111) on the upper end, and the core rod (102) is fixedly connected with a pressing plate (113) away from the fixed plate (106).

4. The portable experimental rat milk collection device of claim 1, wherein: The flat needle connector (2) is fixedly provided with three reinforcing ribs (4) arranged in a ring array on the outside, and the flat needle connector (2) is fixedly connected with two first sealing rings (5) arranged in mirror image on the inside.

5. The portable experimental rat milk collection device of claim 1, wherein: The flat needle (103) is slidably arranged in the flat needle connector (2).

6. The portable experimental rat milk collection device of claim 1, wherein: The collection head (8) is fixedly provided with a second sealing ring (9) on the side away from the pumping pipe (7), and the pumping pipe (7) is fixedly connected with a hand holding plate (10) on both sides of the outer wall.

7. The portable experimental rat milk collection device of claim 3, wherein: The fixed plate (106) is slidably arranged in the mounting groove (111), and the two fixed strips (108) are slidably arranged in the fixed grooves (110).

8. The portable experimental rat milk collection device of claim 3, wherein: The outer wall of the piston head (109) is provided with two recesses (112) arranged in mirror image.

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