Gastric lavage instrument
By setting a pH value probe at the end of the gavage needle of the gavage instrument and a drug infusion hole on the side of the gavage needle, the problem of difficulty in accurately judging whether the drug liquid has entered the stomach during gavage administration has been solved, and the administration of drugs has been achieved. Accuracy and safety.
Patent Information
- Application Number
- CN202420159717.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-23
- Publication Date
- 2025-01-21
- Estimated Expiration
- 2034-01-23
AI Technical Summary
In pharmacological and toxicology experiments, it is difficult to accurately determine whether the drug solution has entered the animal's stomach during gavage administration, which may lead to damage or death of the animal and affect the experimental results.
A gastric gavage instrument was designed to monitor the pH value of the surrounding environment by setting a pH value probe at the end of the gastric gavage needle. When the pH value is within the range of mouse gastric juice (1 to 2.5), it indicates that the gastric gavage needle has entered The stomach, and by setting the medicine filling hole on the side of the gastric filling needle, increases the fluidity of the medicine and ensures the smooth filling of the medicine liquid into the stomach.
Through the monitoring of the pH value probe and the design of the drug filling hole, it is ensured that the drug liquid enters the stomach accurately, which improves the accuracy and safety of drug administration and avoids injury to animals and the impact of experiments.
Smart Images
Figure CN222367831U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a gastric irrigation instrument. Background Art
[0002] Oral gavage is a common way of drug administration in pharmacology and toxicology experiments. In the experiment, the animal is fixed and a gavage device is used to inject the drug solution directly from the animal's mouth into the animal's stomach. The maximum drug volume for oral gavage varies with different animals. At present, most people use experience to judge whether the drug is poured into the mouse's stomach. However, if the judgment is inappropriate, it will cause damage to the mouse, and in severe cases, it will lead to death, thus affecting the experiment. Utility Model Content
[0003] The purpose of the utility model is to provide a gastric gavage instrument to solve the problems raised in the above background technology.
[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0005] The gavage instrument comprises a cylinder, an electric telescopic rod is fixedly installed on the top of the inner side of the cylinder, the movable end of the electric telescopic rod is fixedly connected to a connecting strip, the bottom end of the connecting strip is fixedly connected to two support rods, a piston head is fixedly arranged at the bottom between the two support rods, the bottom end of the cylinder is fixedly connected to an injection head, a connecting seat is clamped at the bottom of the surface of the injection head, a gavage needle is fixedly connected to the bottom end of the connecting seat, a pH probe is fixedly installed at the bottom end of the gavage needle, the end of the pH probe is in an arc-shaped structure, a medicine gavage hole is opened at the bottom of one side of the gavage needle, a placement seat is fixedly arranged in the middle of the surface of the cylinder, a control panel is fixedly installed on the front of the placement seat, a display screen is fixedly installed at the bottom of the front of the cylinder, and an operation button is fixedly installed on the top of the cylinder.
[0006] The gavage instrument sets a pH probe at the end of the gavage needle. As the gavage needle is inserted, the pH probe monitors the pH value of the surrounding environment. Since the pH value of mouse gastric juice is between 1 and 2.5, when the value monitored by the pH probe is within this range, it means that the end of the gavage needle has entered the mouse stomach. By setting the gavage hole on the side of the gavage needle, the distance between the gavage hole and the end of the gavage needle is increased, the fluidity of the drug during administration is enhanced, and the drug solution can be smoothly gavaged.
[0007] Preferably, an auxiliary handle is fixedly provided on the top of the cylinder surface, and the auxiliary handle is provided to facilitate operation.
[0008] Preferably, the electric telescopic rod, pH value probe, operating buttons and display screen are all electrically connected to the control panel, and the electric telescopic rod, pH value probe, operating buttons and display screen are all powered on and start working by controlling the control panel.
[0009] Preferably, a blocking block is fixedly disposed at the bottom of the inner side of the gavage needle, and the blocking block is disposed corresponding to the drug injection hole. The setting of the blocking block can avoid residual drug solution.
[0010] Preferably, the surface of the gavage needle is provided with scale lines to facilitate observation of the amount of the drug solution.
[0011] Preferably, movable grooves are provided on both sides of the inner wall of the cylinder, and the two movable grooves are slidably connected to the two ends of the connecting strip respectively to ensure stable up and down movement of the connecting strip.
[0012] Preferably, installation grooves are provided on both sides of the inner wall of the connecting seat, and limiting spring plates are fixedly arranged inside the two installation grooves. Limiting grooves are provided on both sides of the injection head, and the two limiting spring plates are respectively engaged with the two limiting grooves to facilitate fixing the connecting seat on the injection head.
[0013] Compared with the prior art, the beneficial effects of the utility model are:
[0014] The utility model arranges a pH probe at the end of a gavage needle. As the gavage needle is inserted into the pH probe, the pH value of the surrounding environment is monitored. Since the pH value of mouse gastric juice is between 1 and 2.5, when the value monitored by the pH probe is within the range, it indicates that the end of the gavage needle has entered the mouse stomach. By arranging a drug injection hole on the side of the gavage needle, the distance between the drug injection hole and the end of the gavage needle is increased, the fluidity of the drug during drug administration is enhanced, and the drug solution is smoothly gavaged. The telescopic length of the electric telescopic rod is adjusted according to the amount of drug solution through the control panel, so as to ensure the accuracy of drug dosage, ensure the rigor of the experiment, and avoid the death of mice caused by overdose. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.
[0016] Figure 1 It is a three-dimensional diagram of the utility model;
[0017] Figure 2 It is a front cross-sectional view of the utility model;
[0018] Figure 3 It is an enlarged view of part A of the utility model;
[0019] Figure 4It is an enlarged view of part B of the utility model.
[0020] In the figure: 1. Cylinder; 2. Electric telescopic rod; 3. Connecting strip; 4. Support rod; 5. Piston head; 6. Gavage needle; 7. Gavage hole; 8. Sealing block; 9. pH probe; 10. Moving groove; 11. Injection head; 12. Connecting seat; 13. Mounting groove; 14. Limiting spring piece; 15. Limiting groove; 16. Operating button; 17. Auxiliary handle; 18. Placement seat; 19. Control panel; 20. Display screen; 21. Scale line. DETAILED DESCRIPTION
[0021] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the embodiments of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.
[0022] In the description of the embodiments of the present invention, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc. indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention.
[0023] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.
[0024] In the embodiments of the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.
[0025] In the embodiments of the present utility model, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, the first feature being "above", "above" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is lower in level than the second feature.
[0026] The disclosure below provides many different embodiments or examples for realizing different structures of the embodiments of the present utility model. In order to simplify the disclosure of the embodiments of the present utility model, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the embodiments of the present utility model. In addition, the embodiments of the present utility model can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.
[0027] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.
[0028] Embodiment 1
[0029] See also Figure 1-4 The utility model provides a gavage instrument, including a cylinder 1, an electric telescopic rod 2 is fixedly installed on the top of the inner side of the cylinder 1, a connecting strip 3 is fixedly connected to the movable end of the electric telescopic rod 2, the bottom end of the connecting strip 3 is fixedly connected to two supporting rods 4, a piston head 5 is fixedly arranged at the bottom between the two supporting rods 4, an injection head 11 is fixedly connected to the bottom end of the cylinder 1, a connecting seat 12 is clamped at the bottom of the surface of the injection head 11, a gavage needle 6 is fixedly connected to the bottom end of the connecting seat 12, a pH probe 9 is fixedly installed at the bottom end of the gavage needle 6, a medicine injection hole 7 is opened at the bottom of one side of the gavage needle 6, a placement seat 18 is fixedly arranged in the middle of the surface of the cylinder 1, and the front of the placement seat 18 is fixedly provided with a A control panel 19 is fixedly installed, a display screen 20 is fixedly installed at the bottom of the front of the cylinder 1, and an operation button 16 is fixedly installed at the top of the cylinder 1. The gavage instrument is provided with a pH probe 9 at the end of the gavage needle 6. As the gavage needle 6 is inserted into the pH probe 9, the pH value of the surrounding environment is monitored. Since the pH value of mouse gastric juice is between 1 and 2.5, when the value monitored by the pH probe 9 is within this range, it indicates that the end of the gavage needle 6 has entered the mouse stomach. By providing the gavage hole 7 on the side of the gavage needle 6, the distance between the gavage hole 7 and the end of the gavage needle 6 is increased, the fluidity of the drug during administration is enhanced, and the drug solution can be smoothly gavaged.
[0030] In actual use, the end of the pH probe (9) is in an arc-shaped structure, which makes the end of the pH probe (9) more rounded, thereby avoiding scratching the mouse stomach during use.
[0031] An auxiliary handle 17 is fixedly provided on the top of the surface of the cylinder 1. The auxiliary handle 17 is provided to facilitate operation. The electric telescopic rod 2, the pH probe 9, the operating button 16 and the display screen 20 are all electrically connected to the control panel 19. The electric telescopic rod 2, the pH probe 9, the operating button 16 and the display screen 20 are all powered on and start working through the control panel 19.
[0032] It should be noted that, in the present invention, power is supplied by a built-in battery, and the built-in battery is connected to a charging structure. Of course, in actual use, a replaceable battery can also be used for power supply, which will not be described in detail here.
[0033] A blocking block 8 is fixedly arranged at the bottom of the inner side of the gavage needle 6, and the blocking block 8 is arranged corresponding to the gavage hole 7. The setting of the blocking block 8 can avoid residual medicine solution. A scale line 21 is provided on the surface of the gavage needle 6 to facilitate observation of the amount of medicine solution. Moving grooves 10 are provided on both sides of the inner wall of the cylinder 1. The two moving grooves 10 are respectively slidably connected to the two ends of the connecting strip 3 to ensure the stable up and down movement of the connecting strip 3. Installation grooves 13 are provided on both sides of the inner wall of the connecting seat 12. Limiting spring pieces 14 are fixedly arranged inside the two installation grooves 13. Limiting grooves 15 are provided on both sides of the injection head 11. The two limiting spring pieces 14 are respectively engaged with the two limiting grooves 15 to facilitate fixing the connecting seat 12 on the injection head 11.
[0034] In this embodiment, the pH detection head can be a micro pH detection head in the prior art, and its structure and principle are not described in detail here.
[0035] When the embodiment of the present application is used, the telescopic length of the electric telescopic rod 2 is adjusted according to the amount of liquid medicine through the control panel 19 to ensure the accuracy of the dosage, ensure the rigor of the experiment, and avoid the death of mice caused by overdose. Then, the operation button 16 is pressed, and the electric telescopic rod 2 drives the connecting strip 3 to move upward, and then drives the piston head 5 to move upward to absorb the liquid medicine into the gavage needle 6, and then the end of the gavage needle 6 is inserted into the mouse stomach. Then, the operation button 16 is pressed again, and the electric telescopic rod 2 drives the connecting strip 3 to move downward, and then drives the piston head 5 to move downward to discharge the liquid medicine in the gavage needle 6. In the embodiment, a pH probe 9 is arranged at the end of the gavage needle 6. As the gavage needle 6 is inserted into the pH probe 9, the pH value of the surrounding environment is monitored. Since the pH value of mouse gastric juice is between 1 and 2.5, when the value monitored by the pH probe 9 is within this range, it indicates that the end of the gavage needle 6 has entered the mouse stomach. By arranging the drug injection hole 7 on the side of the gavage needle 6, the distance between the drug injection hole 7 and the end of the gavage needle 6 is increased, the fluidity of the drug during drug administration is enhanced, and the drug solution can be smoothly gavaged. When in use, the pH value is displayed on the display screen 20, and the pH value is used for sampling.
[0036] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present invention.
[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A gastric gavage apparatus, comprising a cylinder (1), characterized in that: An electric telescopic rod (2) is fixedly installed on the top of the inner side of the cylinder (1); the movable end of the electric telescopic rod (2) is fixedly connected to a connecting strip (3); the bottom end of the connecting strip (3) is fixedly connected to two supporting rods (4); a piston head (5) is fixedly arranged at the bottom between the two supporting rods (4); the bottom end of the cylinder (1) is fixedly connected to an injection head (11); a connecting seat (12) is clamped at the bottom of the surface of the injection head (11); the bottom end of the connecting seat (12) is fixedly connected to an injection head (11); A stomach needle (6), wherein a pH probe (9) is fixedly mounted at the bottom end of the stomach needle (6), the end of the pH probe (9) being in an arc-shaped structure, a medicine injection hole (7) is provided at the bottom of one side of the stomach needle (6), a mounting seat (18) is fixedly mounted in the middle of the surface of the cylinder (1), a control panel (19) is fixedly mounted on the front of the mounting seat (18), a display screen (20) is fixedly mounted at the bottom of the front of the cylinder (1), and an operation button (16) is fixedly mounted on the top of the cylinder (1).
2. The gastric gavage apparatus according to claim 1, characterized in that: An auxiliary handle (17) is fixedly arranged on the top of the surface of the cylinder (1).
3. The gastric gavage apparatus according to claim 1, characterized in that: The electric telescopic rod (2), the pH value probe (9), the operating button (16) and the display screen (20) are all electrically connected to the control panel (19).
4. The gastric gavage apparatus according to claim 1, characterized in that: A blocking block (8) is fixedly arranged at the bottom of the inner side of the gastric irrigation needle (6), and the blocking block (8) is arranged corresponding to the medicine irrigation hole (7).
5. The gastric gavage apparatus according to claim 1, characterized in that: The surface of the gavage needle (6) is provided with scale lines (21).
6. The gastric gavage apparatus according to claim 1, characterized in that: Both sides of the inner wall of the cylinder (1) are provided with movable grooves (10), and the two movable grooves (10) are respectively slidably connected to the two ends of the connecting strip (3).
7. The gastric gavage apparatus according to claim 1, characterized in that: Both sides of the inner wall of the connecting seat (12) are provided with mounting grooves (13), and limiting spring sheets (14) are fixedly arranged inside the two mounting grooves (13). Both sides of the injection head (11) are provided with limiting grooves (15), and the two limiting spring sheets (14) are respectively engaged and connected with the two limiting grooves (15).