Anesthetic filling device and anesthetic evaporator

Abstract

The utility model provides an anesthetic filling device and an anesthetic vaporizer, and belongs to the technical field of medical instruments.The anesthetic filling device is installed on a bottle body containing anesthetic and comprises a connecting piece connected with a bottle opening of the bottle body; the one-way valve is at least partially arranged at the bottle opening of the bottle body and comprises a valve element, a fixing frame and an elastic piece, the valve element is movably arranged in the cavity of the connecting piece, the fixing frame is fixedly connected to the bottle opening of the bottle body, and the elastic piece is connected between the valve element and the fixing frame in an abutting mode; the valve core opens or seals the sealing port of the connecting piece under the action of external thrust and the elastic force of the elastic piece; the valve element comprises a valve element body and a plurality of elastic arms connected to the valve element body, one end of each elastic arm is fixedly connected with the valve element body, and the other end of each elastic arm is a free end. The multiple elastic arms are evenly distributed on the periphery of the valve element body in the circumferential direction, and the free ends of the elastic arms abut against the inner side wall of the connecting piece. According to the anesthetic filling device, the sealing performance of the anesthetic filling device can be improved, and anesthetic leakage during inversion is avoided.

Description

Technical Field

[0001] The present disclosure relates to the technical field of medical devices, and in particular to an anesthetic filling device and an anesthetic vaporizer. Background Art

[0002] Anesthesia machine is an instrument that uses inhalation anesthesia to perform general anesthesia. It delivers anesthetics into the patient's alveoli through a mechanical circuit. After the anesthetic gas partial pressure is formed and diffused into the blood, it directly inhibits the central nervous system, thereby producing the effect of general anesthesia. Among them, the anesthesia vaporizer is an important part of the anesthesia machine. It is a device that can convert anesthetics into steam and input a certain amount into the anesthesia circuit. Its function is to effectively evaporate volatile inhalation anesthetics and accurately control their output concentration.

[0003] When the anesthesia vaporizer needs to be filled with anesthetics, some filling methods require the use of special filling devices. In one of the filling methods, the filling device with a one-way valve needs to be installed on the bottle with the anesthetic, inverted and inserted into the filling port of the vaporizer, and the filling can be achieved after the valve is opened through the one-way valve. After the filling is completed, the filling device is removed, and the one-way valve automatically returns to form a seal to prevent the leakage of anesthetics.

[0004] However, currently, the one-way valve is prone to incorrect return during the automatic return process, resulting in leakage of anesthetics, waste, and possible adverse effects on related personnel or the environment.

[0005] The above information disclosed in this Background section is only for enhancement of understanding of the background of the invention and therefore it may contain information that does not constitute the prior art that is already known to a person of ordinary skill in the art. Utility Model Content

[0006] In order to overcome the problems existing in the related art, the present specification provides an anesthetic filling device and an anesthetic vaporizer, thereby at least to a certain extent solving the problem in the related art that when filling the anesthetic vaporizer with anesthetic, the one-way valve is prone to incorrect return during the automatic return process, resulting in anesthetic leakage.

[0007] According to a first aspect of the present disclosure, there is provided an anesthetic filling device, which is used to be installed on a bottle body, wherein the bottle body is used to load anesthetics, and the anesthetic filling device comprises:

[0008] A connecting piece, used to connect with the bottle mouth of the bottle body, the connecting piece is a hollow structure with two ends open, one end of the connecting piece is a connecting port, and the connecting port is used to connect with the bottle mouth of the bottle body;

[0009] a one-way valve, at least partially disposed at the bottle mouth of the bottle body, the one-way valve comprising a valve core, a fixing frame and an elastic member, the valve core being movably disposed in the cavity of the connecting member, the fixing frame being fixedly connected to the bottle mouth of the bottle body, and the elastic member being abutted between the valve core and the fixing frame;

[0010] Wherein, the other port of the connecting member is a sealing port, and the valve core opens or seals the sealing port under the action of external thrust and the elastic force of the elastic member;

[0011] The valve core comprises a valve core body and a plurality of elastic arms connected to the valve core body, one end of the elastic arm is fixedly connected to the valve core body, and the other end of the elastic arm is a free end;

[0012] The plurality of elastic arms are evenly distributed around the periphery of the valve core body, and the free ends of the elastic arms abut against the inner side wall of the connecting member.

[0013] In some exemplary embodiments of the present disclosure, the valve core body includes a valve seat and a valve stem connected to the valve seat on one side close to the fixing frame, the valve stem is movably inserted into the fixing frame, and the elastic member is sleeved on the periphery of the valve stem and abuts between the valve seat and the fixing frame.

[0014] In some exemplary embodiments of the present disclosure, a side surface of the valve seat away from the valve stem includes a first guide surface located in an edge area, and an inner side wall of the sealing port is provided with a second guide surface matching the shape and size of the first guide surface, and the first guide surface and the second guide surface cooperate to guide the valve core to seal the sealing port under the elastic force of the elastic member.

[0015] In some exemplary embodiments of the present disclosure, the first guide surface and the second guide surface are both annular inclined surfaces.

[0016] In some exemplary embodiments of the present disclosure, the fixing frame is a hollow structure with one end open, and the closed end of the fixing frame is fixedly connected to the bottle mouth of the bottle body.

[0017] In some exemplary embodiments of the present disclosure, a first limiting portion is provided at the closed end of the fixing frame, a through hole is penetrated through the first limiting portion, and the valve stem is movably inserted into the through hole, and the valve core body also includes a second limiting portion, which is provided on a side of the valve stem close to the valve seat, and the first limiting portion and the second limiting portion cooperate to limit the insertion range of the valve stem passing through the through hole and inserted into the bottle mouth.

[0018] In some exemplary embodiments of the present disclosure, the anesthetic agent filling device further includes:

[0019] The first sealing member is sleeved on the sealing port and is used for sealing the sealing port.

[0020] In some exemplary embodiments of the present disclosure, the anesthetic agent filling device further includes:

[0021] The second sealing member is abutted between the fixing frame and the bottle mouth and is used for sealing the gap between the fixing frame and the bottle mouth.

[0022] In some exemplary embodiments of the present disclosure, the connection port is threadedly connected to the bottle mouth of the bottle body.

[0023] According to a second aspect of the present disclosure, an anesthetic vaporizer is provided, comprising a vaporizer filling port and the anesthetic filling device as described in the first aspect, wherein when the vaporizer filling port abuts against a sealing port of the anesthetic filling device, both the vaporizer filling port and the sealing port are opened to allow the anesthetic in the anesthetic filling device to pass into the anesthetic vaporizer.

[0024] The technical solution provided by the present disclosure may have the following beneficial effects:

[0025] The one-way valve in the anesthetic filling device provided by the present disclosure is arranged at the bottle mouth of the anesthetic bottle body, and through the combination of the valve core, the fixing frame and the elastic member, especially the valve core has a plurality of elastic arms and is supported by the inner wall of the connecting member, so that the valve core is always kept in the axial position during the activity, and the stable movement of the valve core is achieved, which can prevent the leakage of anesthetics caused by the incorrect return of the valve core, and improve the sealing effect of the anesthetic filling device. The sealing port of the connecting member can realize the function of opening or sealing under the action of external thrust and the elastic force of the elastic member, which ensures the sealing of the device in the non-filling state and further avoids the leakage of anesthetics. In addition, the valve core in the present disclosure adopts an elastic structure, which has lower requirements on the dimensional accuracy of the matching position of the valve core and the connecting member body, and the structure is simpler and the cost is lower.

[0026] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present specification. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the specification and, together with the description, serve to explain the principles of the specification.

[0028] Figure 1 is an exploded view of an anesthetic agent filling device in an exemplary embodiment of the present disclosure;

[0029] Figure 2 is a structural schematic diagram of an anesthetic filling device and a bottle body in a connected state in an exemplary embodiment of the present disclosure;

[0030] Figure 3 is a three-dimensional schematic diagram of an anesthetic filling device and a bottle body in a connected state in an exemplary embodiment of the present disclosure;

[0031] Figure 4 is a structural schematic diagram of an anesthetic filling device in an exemplary embodiment of the present disclosure in a filling state;

[0032] Figure 5 is a three-dimensional schematic diagram of a valve core in an exemplary embodiment of the present disclosure at a first viewing angle;

[0033] Figure 6 is a three-dimensional schematic diagram of the valve core in the exemplary embodiment of the present disclosure at a second viewing angle;

[0034] Figure 7 is a three-dimensional schematic diagram of the valve core in the exemplary embodiment of the present disclosure at a third viewing angle;

[0035] Figure 8 is a structural schematic diagram of a valve core and a connecting member in a sealed state in an exemplary embodiment of the present disclosure;

[0036] Fig. 9 yes Figure 8 The enlarged schematic diagram of point A in the middle;

[0037] Fig.10 Schematic diagram of the structure of a fixing frame in an exemplary embodiment of the present disclosure.

[0038] Description of Reference Numerals

[0039] 100, connecting piece; 200, one-way valve; 210, valve core; 211, valve core body; 2111, valve seat; 2112, valve stem; 2113, second limiting part; 212, elastic arm; 220, fixing frame; 221, first limiting part; 230, elastic member; 300, bottle body; 400, first sealing member; 500, second sealing member; 600, evaporator filling port;

[0040] a. First guide surface; b. Second guide surface. DETAILED DESCRIPTION

[0041] Example embodiments will now be described more fully with reference to the accompanying drawings. However, the example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that the present disclosure will be comprehensive and complete and fully convey the concepts of the example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar structures, and thus their detailed description will be omitted. In addition, the drawings are only schematic illustrations of the present disclosure and are not necessarily drawn to scale.

[0042] Although relative terms such as "upper" and "lower" are used in this specification to describe the relative relationship of one component of the illustration to another component, these terms are used in this specification only for convenience, such as according to the orientation of the examples described in the drawings. It is understood that if the device of the illustration is turned upside down, the component described as "upper" will become the component "lower". When a structure is "on" other structures, it may mean that the structure is formed integrally on the other structure, or that the structure is "directly" disposed on the other structure, or that the structure is "indirectly" disposed on the other structure through another structure.

[0043] The terms "a", "an", "the", "said" and "at least one" are used to indicate the presence of one or more elements / components / etc.; the terms "including" and "having" are used to express an open-ended inclusive meaning and mean that additional elements / components / etc. may exist in addition to the listed elements / components / etc.; the terms "first", "second" and "third" etc. are used merely as labels and are not intended to limit the quantity of their objects.

[0044] In the present disclosure, the words "perpendicular" and "equal" refer to perpendicularity and equality within the process error range, not perpendicularity and equality in an absolute sense. The process error may be within ±10% or ±5%. For example, if the first direction is perpendicular to the second direction, it can be understood that the angle between the first direction and the second direction may be 90°±5°.

[0045] like Figures 1 to 4 As shown, the embodiment of the present disclosure provides an anesthetic filling device, including a connector 100 and a one-way valve 200. The connector 100 is used to connect with the bottle mouth of a bottle body 300 loaded with anesthetics. The connector 100 is a hollow structure with two ends open. One port of the connector 100 is a connecting port, which is used to connect with the bottle mouth of the bottle body 300. At least part of the one-way valve 200 is arranged at the bottle mouth of the bottle body 300. The one-way valve 200 includes a valve core 210, a fixing frame 220 and an elastic member 230. The valve core 210 is movably arranged in the cavity of the connector 100, the fixing frame 220 is fixedly connected to the bottle mouth of the bottle body 300, and the elastic member 230 abuts between the valve core 210 and the fixing frame 220. The other port of the connector 100 is a sealing port. The valve core 210 opens or seals the sealing port under the action of external thrust and the elastic force of the elastic member 230. The valve core 210 includes a valve core body 211 and a plurality of elastic arms 212 connected to the valve core body 211, one end of the elastic arm 212 is fixedly connected to the valve core body 211, and the other end of the elastic arm 212 is a free end. Moreover, the plurality of elastic arms 212 are evenly distributed around the periphery of the valve core body 211, and the free ends of the elastic arms 212 abut against the inner wall of the connector 100.

[0046] The one-way valve 200 in the anesthetic filling device provided by the present disclosure is arranged at the bottle mouth of the bottle body 300. Through the combination of the valve core 210, the fixing frame 220 and the elastic member 230, especially the valve core 210 has multiple elastic arms 212 and is supported by the inner wall of the connecting member 100, the valve core 210 is always kept in the axial position during the activity, and the stable movement of the valve core 210 is achieved, which can prevent the leakage of anesthetics caused by the improper return of the valve core 210, and improve the sealing effect of the anesthetic filling device. The sealing port of the connecting member 100 can realize the function of opening or sealing under the action of external thrust and the elastic force of the elastic member 230, which ensures the sealing of the device in the non-filling state and further avoids the leakage of anesthetics. In addition, the valve core 210 in the present disclosure adopts an elastic structure, and the dimensional accuracy requirements for the matching position of the valve core 210 and the main body of the connecting member 100 are relatively low, the structure is simpler, and the cost is lower.

[0047] The following will describe in detail the various parts of the anesthetic filling device provided by the embodiment of the present disclosure in conjunction with the accompanying drawings:

[0048] like Figures 1 to 4 As shown, the connector 100 is connected to the mouth of the bottle 300 loaded with anesthetics. The connector 100 is a hollow structure with two ends open. The hollow structure forms a cavity, and the one-way valve 200 is arranged in the cavity. One port of the connector 100 is a connecting port, which is connected to the mouth of the bottle 300. For example, the connecting port can be threadedly connected to the mouth of the bottle for easy assembly. Of course, the connecting port can also be tightly connected to the mouth of the bottle by means of a snap-fit ​​structure, a concave-convex structure, etc., which is not limited in the present disclosure.

[0049] At least part of the one-way valve 200 is disposed at the mouth of the bottle body 300, and the one-way valve 200 includes a valve core 210, a fixing frame 220, and an elastic member 230. The valve core 210 is movably disposed in the cavity of the connecting member 100, the fixing frame 220 is fixedly connected to the mouth of the bottle body 300, and the elastic member 230 abuts between the valve core 210 and the fixing frame 220. Through the combination of the valve core 210, the fixing frame 220, and the elastic member 230, the valve core 210 can be moved in the cavity of the connecting member 100 to realize the opening and closing of the anesthetic filling device.

[0050] Correspondingly, the other port of the connector 100 is a sealing port, and the valve core 210 can open or seal the sealing port under the action of external thrust and the elastic force of the elastic member 230. Figure 4As shown, when the valve core 210 is pressed by external thrust, the valve core 210 squeezes the elastic member 230 and moves in the direction close to the bottle mouth of the bottle body 300. The elastic member 230 is in a compressed state. At this time, the sealing port of the connecting member 100 is in an open state. When the valve core 210 is released, the valve core 210 returns to its original position under the elastic force of the elastic member 230, that is, moves in the direction away from the bottle mouth of the bottle body 300 until the sealing port of the connecting member 100 is closed.

[0051] In the exemplary implementation of the present disclosure, Figures 5 to 7 As shown, the valve core 210 includes a valve core body 211 and a plurality of elastic arms 212 connected to the valve core body 211, one end of the elastic arm 212 is fixedly connected to the valve core body 211, and the other end of the elastic arm 212 is a free end. Moreover, the plurality of elastic arms 212 are evenly distributed around the periphery of the valve core body 211, and the free ends of the elastic arms 212 abut against the inner side wall of the connector 100.

[0052] For example, the valve core 210 may include at least three elastic arms 212, and the free ends of the elastic arms 212 may abut against the inner wall of the connector 100 to form a stable support structure, so that the valve core 210 is always in a coaxial movable state in the cavity of the connector 100, thereby preventing the valve core 210 from failing to seal due to improper return during the return process, thereby avoiding leakage of anesthetic. Moreover, since the elastic structure is used to support the valve core 210, the friction force on the valve core 210 during the movement is small, and the filling operation is smoother.

[0053] Furthermore, the valve core body 211 may include a valve seat 2111 and a valve stem 2112 connected to the valve seat 2111 near the fixing frame 220, the valve seat 2111 and the valve stem 2112 are made in one piece, and the central axis is on the same straight line. The valve stem 2112 may be a cylindrical structure.

[0054] like Figure 2 As shown, the valve stem 2112 is movably inserted into the fixing frame 220, and the elastic member 230 is sleeved on the periphery of the valve stem 2112 and abuts between the valve seat 2111 and the fixing frame 220. Under the action of external thrust and the elastic force of the elastic member 230, the valve stem 2112 can move in the cavity of the connecting member 100 and the channel of the fixing frame 220, thereby realizing the opening and closing of the sealing port of the connecting member 100. Among them, the elastic member 230 can be a spring.

[0055] like Figure 5 and Figure 6 As shown, the side surface of the valve seat 2111 away from the valve stem 2112 includes a first guide surface a located in the edge area. Figure 8 and Fig. 9As shown, the inner side wall of the sealing port of the connector 100 is provided with a second guide surface b that matches the shape and size of the first guide surface a. The first guide surface a and the second guide surface b are both annular inclined surfaces, and the first guide surface a and the second guide surface b cooperate to guide the valve core 210 to seal the sealing port under the elastic force of the elastic member 230.

[0056] In the example implementation of the present disclosure, at least three elastic support arms are added to the valve core 210 to prevent the valve core 210 from being displaced. At the same time, the contact surfaces of the valve core 210 and the connector 100 are both set as inclined surfaces, which can play a guiding role when the valve core 210 returns, thereby avoiding sealing failure caused by improper return of the valve core 210, and further preventing anesthetic leakage when the anesthetic filling device is inverted.

[0057] like Figure 2 and Fig.10 As shown, the fixing frame 220 is a hollow structure with one end open, the hollow structure forms a receiving cavity, and the closed end of the fixing frame 220 is fixedly connected to the bottle mouth of the bottle body, such as the closed end can be pressed onto the bottle mouth, so as to achieve a close connection between the two.

[0058] The elastic member 230 is movably disposed in the accommodating cavity and abuts between the closed end of the fixing frame 220 and the valve core 210, so that the valve core 210 is driven to return to its original position by the elastic force of the elastic member 230, thereby simplifying the structure of the valve core 210 and reducing the cost of the anesthetic filling device.

[0059] In addition, the closed end of the fixing frame 220 is provided with a first limiting portion 221, and a through hole 2211 is penetrated in the first limiting portion 221, and the valve stem 2112 is movably arranged in the through hole 2211. Figure 5 As shown, the valve core body 211 also includes a second limiting portion 2113, which is provided on the side of the valve stem 2112 close to the valve seat 2111. The first limiting portion 221 and the second limiting portion 2113 cooperate to limit the insertion range of the valve stem 2112 passing through the through hole 2211 and inserting into the bottle mouth. For example, at least three second limiting portions 2113 can be provided on the valve core body 211 to further ensure that the valve core 210 is always in a coaxial active state in the cavity of the connector 100.

[0060] The one-way valve provided in the present disclosure can be used to control the anesthetic filling on and off of the anesthetic filling device, so that the anesthetic flowing out of the bottle body 300 can only flow in one direction to a specific device such as an anesthetic vaporizer, but cannot flow back.

[0061] like Figure 2As shown, the anesthetic filling device also includes a first sealing member 400, which is sleeved on the sealing port of the connector 100 and is used to seal the sealing port. Preferably, the first sealing member 400 can be a sealing ring, which can be arranged on the periphery of the sealing port and abut against the inner side wall of the evaporator filling port to ensure the sealing effect at the sealing port. The number of the first sealing members 400 can be multiple, and is not specifically limited.

[0062] In some embodiments of the present disclosure, the sealing port of the connector 100 may have a snap-fit ​​end, which is used to limit the connector 100 to only squeeze the valve core 210 to move in the direction of the bottle mouth close to the bottle body 300 when subjected to external thrust, so as to ensure that the connector 100 itself does not move. For example, the sealing port of the connector 100 is snap-fitted and connected with the filling port of the vaporizer through the snap-fit ​​end, so that the connector 100 will not be separated from the filling port of the anesthesia vaporizer in the filling state.

[0063] The valve core 210 can drive the valve stem 2112 to move in the through hole 2211 under the action of external thrust and the elastic member 230. Specifically, when the valve core 210 is squeezed, the valve core 210 moves in the direction close to the bottle mouth of the bottle body 300, and the valve stem 2112 moves in the through hole 2211 toward the bottle body 300, and there is a gap between the valve core 210 and the sealing port of the connecting member 100, that is, the sealing port of the connecting member 100 is opened, and the anesthetic stored in the bottle body 300 can flow out through the sealing port. When the valve core 210 is released, the valve core 210 moves in the direction away from the bottle mouth of the bottle body 300, and the valve stem 2112 moves in the through hole 2211 toward the outside of the bottle body 300 until the valve core 210 and the sealing port of the connecting member 100 are sealed and connected, that is, the sealing port of the connecting member 100 is closed, and the area of ​​the valve core 210 located in the sealing port of the connecting member 100 is in a sealed state.

[0064] In some example embodiments, a second sealing member 500 may be disposed between the fixing frame 220 and the bottle mouth, and the second sealing member 500 abuts between the fixing frame 220 and the bottle mouth. When in the filling state, the second sealing member 500 may seal the gap between the fixing frame 220 and the bottle mouth, thereby ensuring a sealed connection between the fixing frame 220 and the bottle mouth, thereby preventing leakage of the anesthetic. The second sealing member 500 may be a sealing pad.

[0065] To further illustrate the mechanism of action of the anesthetic filling device provided by the present disclosure, a detailed description will be given below in conjunction with the accompanying drawings.

[0066] like Figure 2 As shown, in the initial state, the elastic member 230 is in a free state, at which time the valve core 210 is sealed and connected to the sealing port of the connector 100, and even if the anesthetic filling device and the bottle body 300 are both in an inverted state, the anesthetic will not leak through the sealing port.

[0067] like Figure 4 As shown, in this type of embodiment, when the valve core 210 is squeezed, the valve core 210 moves in the direction close to the bottle mouth of the bottle body 300 under the force of external thrust, and during this process, the main body of the connector 100 never moves, so that a gap is generated between the valve core 210 and the connector 100, and the sealing port of the connector 100 is opened. At this time, the anesthetic in the bottle body 300 can flow out from the sealing port through the cavity in the connector 100, and flow into the medicine pool of the anesthesia vaporizer through the vaporizer filling port 600.

[0068] When the valve core 210 is released, the valve core 210 moves along the bottle mouth direction close to the bottle body 300 under the action of the elastic member 230 and gradually returns to the initial state until the valve core 210 is sealed and connected to the sealing port of the connector 100 again, and the sealing port is closed and can no longer be filled with anesthetic.

[0069] The free ends of the multiple elastic arms 212 on the valve core 210 are always in contact with the inner wall of the connecting piece 100, which can support the valve core 210 to always be in a coaxial active state in the cavity of the connecting piece 100, thereby preventing the valve core 210 from failing to seal due to incorrect returning during the returning process, thereby avoiding leakage of anesthetic.

[0070] The present disclosure also provides an anesthesia vaporizer, which is used to convert liquid anesthetics into steam and then deliver it to a patient through an anesthesia machine body, and may include a vaporizer filling port and an anesthetic filling device as in any of the above embodiments. When the vaporizer filling port abuts against the sealed port of the anesthetic filling device, by pressing the anesthetic filling device, the vaporizer filling port and the sealed port of the anesthetic filling device will generate a force on each other, so that the vaporizer filling port and the sealed port are both opened, thereby forming a liquid inlet channel, so that the anesthetic in the anesthetic filling device is passed into the anesthesia vaporizer through the liquid inlet channel, such as into the medicine pool of the anesthesia vaporizer, and the anesthetic in the medicine pool is then converted into steam and input into the anesthesia circuit for delivery to the patient.

[0071] Specifically, when filling the anesthetic, the anesthetic filling device is inverted to partially insert the connector 100 into the filling port of the vaporizer, and the anesthetic filling device is pressed downward, and the valve core 210 moves toward the bottle mouth close to the bottle body 300, so that the sealing port of the connector 100 is opened, and the anesthetic in the bottle body 300 flows into the medicine pool of the anesthetic vaporizer. After the filling is completed, the device is pulled out, and the valve core 210 automatically returns to close the sealing port of the connector 100 under the influence of the elastic force of the elastic member 230, thereby ensuring the sealing effect of the anesthetic filling device.

[0072] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the invention disclosed herein. This application is intended to cover any modification, use or adaptation of the present disclosure, which follows the general principles of the present disclosure and includes common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The specification and examples are intended to be exemplary only, and the true scope and spirit of the present disclosure are indicated by the appended claims.

Claims

1. An anesthetic filling device, used to be installed on a bottle body, the bottle body is used to load anesthetics, characterized in that: The anesthetic filling device comprises: A connecting piece, used to connect with the bottle mouth of the bottle body, the connecting piece is a hollow structure with two ends open, one end of the connecting piece is a connecting port, and the connecting port is used to connect with the bottle mouth of the bottle body; a one-way valve, at least partially disposed at the bottle mouth of the bottle body, the one-way valve comprising a valve core, a fixing frame and an elastic member, the valve core being movably disposed in the cavity of the connecting member, the fixing frame being fixedly connected to the bottle mouth of the bottle body, and the elastic member being abutted between the valve core and the fixing frame; Wherein, the other port of the connecting member is a sealing port, and the valve core opens or seals the sealing port under the action of external thrust and the elastic force of the elastic member; The valve core comprises a valve core body and a plurality of elastic arms connected to the valve core body, one end of the elastic arm is fixedly connected to the valve core body, and the other end of the elastic arm is a free end; The plurality of elastic arms are evenly distributed around the periphery of the valve core body, and the free ends of the elastic arms abut against the inner side wall of the connecting member.

2. The anesthetic filling device according to claim 1, characterized in that: The valve core body comprises a valve seat and a valve stem connected to the valve seat on one side close to the fixing frame, the valve stem is movably arranged in the fixing frame, and the elastic member is sleeved on the periphery of the valve stem and abuts between the valve seat and the fixing frame.

3. The anesthetic filling device according to claim 2, characterized in that: The side surface of the valve seat away from the valve stem includes a first guide surface located in the edge area, and the inner wall of the sealing port is provided with a second guide surface that matches the shape and size of the first guide surface. The first guide surface and the second guide surface cooperate to guide the valve core to seal the sealing port under the elastic force of the elastic member.

4. The anesthetic filling device according to claim 3, characterized in that: The first guide surface and the second guide surface are both annular inclined surfaces.

5. The anesthetic filling device according to claim 1, characterized in that: The fixing frame is a hollow structure with one end open, and the closed end of the fixing frame is fixedly connected to the bottle mouth of the bottle body.

6. The anesthetic filling device according to claim 2, characterized in that: A first limiting portion is provided at the closed end of the fixing frame, a through hole is penetrated through the first limiting portion, and the valve stem is movably inserted into the through hole. The valve core body also includes a second limiting portion, which is provided on a side of the valve stem close to the valve seat. The first limiting portion and the second limiting portion cooperate with each other to limit the insertion range of the valve stem passing through the through hole and inserted into the bottle mouth.

7. The anesthetic filling device according to claim 1, characterized in that: The anesthetic filling device also includes: The first sealing member is sleeved on the sealing port and is used for sealing the sealing port.

8. The anesthetic agent filling device according to claim 1, characterized in that: The anesthetic filling device also includes: The second sealing member is abutted between the fixing frame and the bottle mouth and is used for sealing the gap between the fixing frame and the bottle mouth.

9. The anesthetic filling device according to claim 1, characterized in that: The connection port is threadedly connected to the bottle mouth of the bottle body.

10. An anesthetic vaporizer, characterized in that: It comprises a vaporizer filling port and the anesthetic filling device according to any one of claims 1 to 9, wherein when the vaporizer filling port abuts against the sealing port of the anesthetic filling device, both the vaporizer filling port and the sealing port are opened to allow the anesthetic in the anesthetic filling device to pass into the anesthetic vaporizer.

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