Anesthesia quantitative syringe

Abstract

The utility model discloses an anesthesia quantitative syringe, and relates to the technical field of medical instruments. The syringe comprises a syringe body, a needle is fixedly installed at one end of the syringe body, a piston block is connected to the inner wall of the syringe body in a sealed and sliding mode and used for pushing liquid medicine to complete extraction and injection, a connecting rod is fixedly installed on one side of the piston block, one end of the connecting rod penetrates through the other end of the syringe body in a sealed and sliding mode, and the other end of the connecting rod penetrates through the syringe body in a sealed and sliding mode. And a pressing block is fixedly mounted at the other end of the connecting rod. According to the utility model, the injector can be used for quantifying the amount of solution during extraction, so that medical personnel can conveniently and accurately extract and inject the solution, and meanwhile, the injector can be used for carrying out small-volume quantitative injection after a large amount of solution is extracted, so that the quantitative injection of the same solution in batches can be realized; meanwhile, the appearance and the operation mode of the syringe are slightly different from those of a traditional syringe, the use habits of medical staff are met, and use is convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical appliances, in particular to an anesthesia quantitative syringe. Background Art

[0002] Syringes are mainly used to extract or inject gases or liquids with needles. Syringes can also be used in medical devices, containers, and scientific instruments such as some chromatography methods to complete injections through rubber diaphragms.

[0003] After searching, the patent with announcement number CN209695979U discloses an anesthetic quantitative syringe, including an outer tube body, through holes and slide grooves are respectively provided on both sides of the outer tube body, and an inner tube body is provided in the inner cavity of the outer tube body, the top of the inner tube body is fixedly connected to the top of the outer tube body cavity, the inner tube body cavity is provided with a push plate, the push plate is slidably connected to the inner wall of the inner tube body, the top of the push plate is fixedly connected with a sealing rubber pad, and the bottom of the push plate is fixedly connected with a push rod, the bottom end of the push rod is fixedly connected with a pressing plate, a limit block is provided under the inner tube body, a limit plate is provided under the limit block, a connecting rod is provided on one side of the limit plate, and a nut is movably connected to one end of the connecting rod. This kind of anesthetic quantitative syringe has a simple structure, low cost, can be used for quantitative injection, and can prevent the syringe from sliding during the injection process, so this kind of anesthetic quantitative syringe has broad application prospects.

[0004] However, the above patents still have the following problems in use:

[0005] The syringe in the above patent does not have a good quantitative effect when injecting the solution in the syringe barrel in batches. When using it, it can only be used to manually determine the amount of injection solution like a traditional syringe, and the use effect is not good enough; if the method of multiple quantitative extraction and injection is adopted, the operation is more complicated, the work efficiency is low, and it is not convenient to use;

[0006] The external structure of the syringe in the above patent is different from that of the traditional syringe. The usage and habits of the traditional syringe are difficult to adapt to it, which can easily affect the operation of medical staff. Utility Model Content

[0007] The purpose of the utility model is to provide an anesthesia quantitative syringe. In the utility model, the syringe can quantify the amount of solution when drawing. At the same time, the syringe can also perform small-volume quantitative injection after a large amount of solution is drawn. Its appearance and operation method are not much different from traditional syringes, which conforms to the usage habits of medical staff and solves the existing technical problems.

[0008] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0009] An anesthesia metered dose syringe, comprising:

[0010] A syringe, one end of which is fixedly mounted with a needle, the inner wall of which is sealingly and slidably connected with a piston block, which is used to push the liquid medicine to complete extraction and injection, one side of which is fixedly mounted with a connecting rod, one end of which seals and slides through the other end of the syringe, and the other end of which is fixedly mounted with a pressing block, which is used to facilitate pushing and pulling of the piston block;

[0011] It also includes a first limiting component, which is used to quantify the amount of liquid drawn from the syringe;

[0012] It also includes a second limiting component, which is used to quantify the amount of liquid pushed out of the syringe.

[0013] Optionally, the first limiting assembly includes a mounting bracket fixedly mounted on both sides of the injection barrel, each of the two mounting brackets being provided with a sliding groove, each of the two sliding grooves being slidably connected with a pulling rod, one end of the two pulling rods being fixedly mounted with the same collar, the collar being slidably sleeved on the outer wall of the injection barrel, the collar and the two mounting brackets being slidably connected, the outer wall of the injection barrel being provided with a first scale, the collar matching the first scale, the other end of the two pulling rods being fixedly mounted with the same first limiting plate, the first limiting plate matching the pressing block, the two mounting brackets being fixedly mounted with a protrusion on the side away from the injection barrel, the two protrusions being located at one end close to the pressing block, the two protrusions being slidably matched with adjacent pulling rods, one end of the two protrusions being provided with a threaded hole, one of the protrusions being threadedly connected with a first fixing screw through the threaded hole, one end of the first fixing screw matching with the pulling rod, and the first fixing screw being used to limit the position of the first limiting plate.

[0014] Optionally, the second limit assembly includes a second limit plate slidably mounted on the outer wall of the connecting rod, the second limit plate is located outside the injection barrel, the second limit plate is slidably connected to the two pull-out rods, both ends of the second limit plate are provided with threaded holes, one end of the second limit plate is threadedly connected to a second fixing screw through the threaded hole, the second fixing screw cooperates with the pull-out rod, and the second limit plate cooperates with the pressing block to limit the push-back of the pressing block.

[0015] Optionally, a second scale is provided on the side of the two pull-out rods that are away from each other, and the second scale cooperates with the second limit plate to facilitate precise adjustment of the distance between the second limit plate and the pressing block.

[0016] Optionally, when the pressing block is in the initial position, one side of the pressing block is kept in close contact with one side of the first limiting plate, so as to ensure high accuracy of solution extraction after subsequent quantification.

[0017] Optionally, the two protrusions have a length that can accommodate at least one finger to hook onto them, and can serve as a support rod to assist the user in completing the injection.

[0018] The embodiments of the present invention have the following beneficial effects:

[0019] In the utility model, the syringe can quantify the amount of solution during extraction, which is convenient for medical staff to accurately extract and inject the solution. At the same time, the syringe can also perform small-volume quantitative injection after extracting a large amount of solution, which is conducive to realizing batch quantitative injection of the same solution, and can improve the efficiency of multiple injections while ensuring the accuracy of the injection volume. At the same time, its appearance and operation method are not much different from traditional syringes, which conforms to the usage habits of medical staff and is convenient to use.

[0020] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 This is a schematic diagram of a three-dimensional structure of an embodiment of the utility model;

[0023] Figure 2 This is a schematic cross-sectional view of an embodiment of the utility model;

[0024] Figure 3 This is a schematic diagram of the front end structure of the injection barrel of an embodiment of the utility model;

[0025] Figure 4 This is a schematic diagram of the rear end structure of the injection cylinder of one embodiment of the utility model;

[0026] Figure 5 The figure is a schematic diagram of the split structure of an embodiment of the utility model.

[0027] In the figure: 1. syringe barrel; 2. needle; 3. first scale; 4. piston block; 5. connecting rod; 6. pressing block; 7. mounting bracket; 8. slide groove; 9. pull rod; 10. collar; 11. first limit plate; 12. bump; 13. first fixing screw; 14. second limit plate; 15. second fixing screw; 16. second scale. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] In the description of the present invention, it should be understood that the terms "opening", "upper", "middle", "length", "inside" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0030] In order to keep the following description of the embodiments of the present invention clear and concise, the present invention omits detailed descriptions of known functions and known components.

[0031] Example 1

[0032] See also Figure 1-5 As shown, in this embodiment, a quantitative syringe is provided, comprising: a syringe 1, a first limiting assembly and a second limiting assembly;

[0033] A needle 2 is fixedly installed at one end of the syringe 1, and a piston block 4 is sealingly and slidably connected to the inner wall of the syringe 1. The piston block 4 is used to push the liquid medicine to complete extraction and injection. A connecting rod 5 is fixedly installed on one side of the piston block 4. One end of the connecting rod 5 seals and slides through the other end of the syringe 1. A pressing block 6 is fixedly installed on the other end of the connecting rod 5. The pressing block 6 is used to facilitate pushing and pulling the piston block 4.

[0034] The first limiting assembly includes a mounting frame 7 fixedly mounted on both sides of the injection barrel 1, a slide groove 8 is provided in each of the two mounting frames 7, a pull rod 9 is slidably connected in each of the two slide grooves 8, a same sleeve 10 is fixedly mounted on one end of the two pull rods 9, the sleeve 10 is slidably sleeved on the outer wall of the injection barrel 1, the sleeve 10 is slidably connected to the two mounting frames 7, a first scale 3 is provided on the outer wall of the injection barrel 1, the sleeve 10 cooperates with the first scale 3, a same first limiting plate 11 is fixedly mounted on the other end of the two pull rods 9, and the first limiting plate 11 is connected to the pressing block 6 In cooperation, a protrusion 12 is fixedly installed on one side of the two mounting frames 7 away from the injection barrel 1, and the two protrusions 12 are located at one end close to the pressing block 6. The two protrusions 12 are slidably matched with the adjacent pull rod 9. A threaded hole is provided at one end of the two protrusions 12, and one of the protrusions 12 is threadedly connected with a first fixing screw 13 through the threaded hole. One end of the first fixing screw 13 cooperates with the pull rod 9. The first fixing screw 13 is used to limit the position of the first limit plate 11, and the first limit assembly is used to quantify the amount of liquid extracted from the syringe;

[0035] The second limiting assembly includes a second limiting plate 14 slidably mounted on the outer wall of the connecting rod 5. The second limiting plate 14 is located outside the injection barrel 1. The second limiting plate 14 is slidably connected to the two pulling rods 9. Both ends of the second limiting plate 14 are provided with threaded holes. One end of the second limiting plate 14 is threadedly connected to a second fixing screw 15 through the threaded hole. The second fixing screw 15 cooperates with the pulling rod 9. The second limiting plate 14 cooperates with the pressing block 6 to limit the push back of the pressing block 6. The second limiting assembly is used to quantify the amount of liquid pushed out of the syringe.

[0036] The present application can be used in the field of medical device technology, and can also be used in other fields applicable to the present application.

[0037] Example 2

[0038] refer to Figure 2 , 4 , improved on the basis of Example 1: an anesthesia quantitative syringe, which is applied to the technical field of medical appliances;

[0039] In this embodiment, a second scale 16 is provided on the side of the two pull-out rods 9 that are away from each other. The second scale 16 cooperates with the second limit plate 14 to facilitate precise adjustment of the distance between the second limit plate 14 and the pressing block 6.

[0040] In this embodiment, when the pressing block 6 is close to the first limiting plate 11, the side of the pressing block 6 away from the first limiting plate 11 is flush with the 0 scale position of the second scale 16, which can facilitate the user to adjust the position of the second limiting plate 14 when performing quantitative injection, which is conducive to improving work efficiency.

[0041] In this embodiment, when the pressing block 6 is located at the initial position, one side of the pressing block 6 is kept in close contact with one side of the first limiting plate 11, so as to ensure high accuracy of solution extraction after subsequent quantification.

[0042] In this embodiment, the length of the two protrusions 12 is sufficient to accommodate at least one finger to hook onto them, and can serve as a support rod to assist the user in completing the injection.

[0043] The use process and working principle of the technical solution of this utility model are as follows:

[0044] When in use, the user first needs to loosen the first fixing screw 13 and the second fixing screw 15, and then the user can pull the first limiting plate 11 and observe the value of the first scale 3 according to the amount of liquid that needs to be extracted later, until the side of the ring 10 close to the needle 2 is flush with the position of the value on the first scale 3, then tighten the first fixing screw 13 to fix the first limiting plate 11, and then the user can pull the pressing block 6 to extract the solution until the pressing block 6 is close to the first limiting plate 11 again. At this time, the amount of solution in the syringe 1 is consistent with the amount of solution that needs to be extracted, and the position of the first limiting plate 11 is kept unchanged. The same amount of solution can be extracted multiple times; when the user extracts a large amount of solution and needs to perform multiple injections, first ensure that the first fixing screw 13 is tightened, then the user can move the second limiting plate 14 to fit tightly against one side of the pressing block 6, and observe the reading on the second scale 16 of the side of the second limiting plate 14 close to the pressing block 6 at this time, and then according to the amount of injection required, the user can move the second limiting plate 14 away from the pressing block 6 and to the corresponding position, and finally tighten the second fixing screw 15 to complete the fixation of the second limiting plate 14, and when the user presses the pressing block 6 for injection, he can be blocked by the second limiting plate 14, which can ensure a more accurate injection amount.

[0045] It should be noted that, in the description of this specification, descriptions such as "first", "second", etc. are merely used to distinguish between various features and have no actual order or directional meaning, and this application is not limited to this.

[0046] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0047] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An anesthesia metered dose syringe, characterized in that: include: A syringe (1), one end of which is fixedly mounted with a needle (2), the inner wall of the syringe (1) is sealingly and slidably connected with a piston block (4), the piston block (4) is used to push the liquid medicine to complete extraction and injection, one side of the piston block (4) is fixedly mounted with a connecting rod (5), one end of the connecting rod (5) is sealingly and slidably penetrates the other end of the syringe (1), the other end of the connecting rod (5) is fixedly mounted with a pressing block (6), the pressing block (6) is used to facilitate pushing and pulling of the piston block (4); It also includes a first limiting component, which is used to quantify the amount of liquid drawn from the syringe; It also includes a second limiting component, which is used to quantify the amount of liquid pushed out of the syringe.

2. An anesthesia metered dose syringe as claimed in claim 1, characterized in that: The first limiting assembly comprises a mounting frame (7) fixedly mounted on both sides of the injection barrel (1), a slide groove (8) is provided in each of the two mounting frames (7), a pull rod (9) is slidably connected in each of the two slide grooves (8), a same sleeve (10) is fixedly mounted on one end of the two pull rods (9), the sleeve (10) is slidably sleeved on the outer wall of the injection barrel (1), the sleeve (10) is slidably connected to the two mounting frames (7), a first scale (3) is provided on the outer wall of the injection barrel (1), the sleeve (10) cooperates with the first scale (3), and a same first limiting plate (11) is fixedly mounted on the other end of the two pull rods (9). ), the first limit plate (11) cooperates with the pressing block (6), and a protrusion (12) is fixedly installed on the side of the two mounting frames (7) away from the injection cylinder (1), and the two protrusions (12) are located at one end close to the pressing block (6). The two protrusions (12) are slidably matched with the adjacent pull-out rods (9), and one end of the two protrusions (12) is provided with a threaded hole, and one of the protrusions (12) is threadedly connected to a first fixing screw (13) through the threaded hole, and one end of the first fixing screw (13) cooperates with the pull-out rod (9). The first fixing screw (13) is used to limit the position of the first limit plate (11).

3. An anesthesia metered dose syringe as claimed in claim 1, characterized in that: The second limiting assembly comprises a second limiting plate (14) slidably mounted on the outer wall of the connecting rod (5); the second limiting plate (14) is located outside the injection cylinder (1); the second limiting plate (14) is slidably connected to the two pulling rods (9); threaded holes are provided at both ends of the second limiting plate (14); one end of the second limiting plate (14) is threadedly connected to a second fixing screw (15) through the threaded hole; the second fixing screw (15) cooperates with the pulling rod (9); the second limiting plate (14) cooperates with the pressing block (6) and can limit the pushing back of the pressing block (6).

4. An anesthesia metered dose syringe as claimed in claim 3, characterized in that: A second scale (16) is provided on the side of the two pull-out rods (9) that is away from each other. The second scale (16) cooperates with the second limit plate (14) to facilitate accurate adjustment of the distance between the second limit plate (14) and the pressing block (6).

5. An anesthesia metered dose syringe as claimed in claim 2, characterized in that: When the pressing block (6) is located at the initial position, one side of the pressing block (6) is kept in close contact with one side of the first limiting plate (11), so as to ensure high accuracy of solution extraction after subsequent quantification.

6. An anesthesia metered dose syringe as claimed in claim 2, characterized in that: The length of the two protrusions (12) can accommodate at least one finger to hook onto it, and can serve as a support rod to assist the user in completing the injection.

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