Dosing adapters, anesthetic bottles and perfusion systems

Abstract

The embodiment of the present invention discloses a drug dosing adapter, an anesthetic bottle and an anesthetic vaporizer perfusion system, including an anesthetic bottle, a drug dosing adapter and an anesthetic vaporizer, the drug dosing adapter including a connecting end and an injection end, the injection end is provided with a drug outlet and a first fool-proofing portion located outside the drug outlet, the connecting end is provided with a drug inlet, the drug inlet and the drug outlet are interconnected to form a drug dosing channel, a piston mechanism is provided on the drug dosing channel, the first fool-proofing portion is used to guide the drug outlet to be connected to the drug dosing port of the anesthetic vaporizer, the drug inlet is connected to the bottle mouth of the anesthetic bottle, when the injection end is installed in the drug dosing port through the first fool-proofing portion, the valve core on the drug dosing port drives the piston mechanism to reciprocate in the drug dosing channel, so that the anesthetic bottle can add medicine to the anesthetic vaporizer through the drug dosing channel.

Description

Technical Field

[0001] The invention relates to the technical field of anesthesia equipment, and in particular to a drug adding adapter, an anesthetic bottle and a perfusion system. Background Art

[0002] At present, when an anesthesia vaporizer is in use, a dosing adapter is needed to add anesthetic to the anesthesia vaporizer, and the dosing adapter is used to establish a connection between the anesthetic bottle and the anesthesia vaporizer.

[0003] Generally, only one anesthetic can be used on each anesthesia vaporizer, but there are many anesthetics commonly used in clinical practice, such as sevoflurane, isoflurane, desflurane, etc. Therefore, drug mixing is prone to occur during the addition of anesthetics to the anesthesia vaporizer. Summary of the invention

[0004] The present invention provides a drug adding adapter, an anesthetic bottle and a perfusion system, which can not only avoid drug mixing during the use of an anesthetic vaporizer through a first fool-proof part, but also have a simple structure and low cost.

[0005] According to a first aspect of the present invention, the present invention provides an anesthetic vaporizer perfusion system, comprising an anesthetic bottle, a dosing adapter and an anesthetic vaporizer, the dosing adapter comprising a connecting end and a liquid injection end, the liquid injection end is provided with a drug outlet and a first fool-proof portion located outside the drug outlet, the connecting end is provided with a drug inlet, the drug inlet and the drug outlet are interconnected to form a drug adding channel, the first fool-proof portion is used to guide the drug outlet to be connected to the drug adding port of the anesthetic vaporizer, and the drug inlet is connected to the bottle mouth of the anesthetic bottle;

[0006] Wherein, a piston mechanism is provided on the drug adding channel. When the injection end is installed in the drug adding port through the first anti-mistake portion, the valve core on the drug adding port drives the piston mechanism to reciprocate in the drug adding channel, so that the anesthetic bottle can add medicine to the anesthetic vaporizer through the drug adding channel.

[0007] In the perfusion system of the present invention, a second fool-proofing portion is provided on the connection end, and the second fool-proofing portion is arranged on the outside of the drug inlet for guiding the drug inlet to connect with the bottle mouth of the anesthetic bottle.

[0008] In the perfusion system of the present invention, the first fool-proofing part is an fool-proofing boss arranged on the injection end, and the drug adding port is provided with a slide groove matching the fool-proofing boss, so that the injection end can enter the drug adding port through the fool-proofing boss along the slide groove.

[0009] In the perfusion system of the present invention, the anti-fool boss has a boss radial width and a boss circumferential width, the slide groove has a slide groove radial width and a slide groove circumferential width, the size of the boss radial width is adapted to the size of the slide groove radial width, and the size of the boss circumferential width is adapted to the size of the slide groove circumferential width.

[0010] In the perfusion system of the present invention, the injection end includes a first step end and a second step end, the first step end is connected to the connecting end through the second step end, the anti-fool boss is arranged on the peripheral side of the second step end, the diameter of the first step end is smaller than the diameter of the dosing port, and the diameter of the second step end is adapted to the diameter of the dosing port.

[0011] In the perfusion system of the present invention, a sealing member is provided at an end of the first stepped end away from the second stepped end.

[0012] In the perfusion system of the present invention, the first fool-proofing part is an fool-proofing slide groove arranged on the injection end, and the drug adding port is provided with an fool-proofing protrusion matching the fool-proofing slide groove, so that the injection end can enter the drug adding port through the fool-proofing slide groove along the fool-proofing protrusion.

[0013] In the perfusion system of the present invention, the second anti-mistake portion is a notch arranged on the connecting end, the mouth of the anesthetic bottle is provided with a movable ring, the movable ring is provided with a protrusion matching the notch, and the connecting end is connected to the mouth of the anesthetic bottle through the cooperation of the notch and the protrusion.

[0014] In the perfusion system of the present invention, the anesthetic bottle is provided with a first external thread at the bottle mouth, and the drug inlet is provided with a first internal thread. When the connecting end is connected to the anesthetic bottle, the first internal thread is connected to the first external thread.

[0015] In the perfusion system of the present invention, the piston mechanism includes a piston member, a spring member and a locking member. The drug adding channel is provided with an abutment end at a position close to the drug outlet. The locking member is installed at one end of the drug adding channel close to the drug inlet. The spring member is arranged between the piston member and the locking member. The piston member abuts against the abutment end under the action of the spring member.

[0016] In the perfusion system of the present invention, a protrusion is provided at one end of the piston member facing the abutting end, and a diameter of the protrusion matches a diameter of the drug adding channel at the abutting end.

[0017] In the perfusion system of the present invention, a recessed portion is provided on the protruding portion, and when the injection end is connected to the anesthesia vaporizer, the valve core on the drug adding port abuts against the recessed portion.

[0018] In the perfusion system of the present invention, it is characterized in that the locking member is provided with a second external thread, the drug adding channel is provided with a second internal thread at one end close to the drug inlet, and the second external thread is threadably connected to the second internal thread.

[0019] According to the second aspect of the present invention, the present invention also provides a drug adding adapter, including a connecting end and an injection end, the connecting end is provided with a drug inlet and a second anti-foolproof portion located outside the drug inlet, the injection end is provided with a drug outlet and a first anti-foolproof portion located outside the drug outlet, the drug inlet and the drug outlet are interconnected to form a drug adding channel, the second anti-foolproof portion is used to guide the drug inlet to be connected to the bottle mouth of the anesthetic bottle, and the first anti-foolproof portion is used to guide the drug outlet to be connected to the drug adding port of the anesthetic vaporizer.

[0020] In the drug adding adapter of the present invention, the first fool-proofing portion is a fool-proofing boss provided on the injection end, and the fool-proofing boss is used to match the slide groove on the drug adding port.

[0021] In the drug adding adapter of the present invention, the fool-proof boss has a boss radial width and a boss circumferential width, the boss radial width is matched with the radial width of the slide groove, and the boss circumferential width is matched with the circumferential width of the slide groove.

[0022] In the drug adding adapter of the present invention, the injection end includes a first step end and a second step end, the first step end is connected to the connection end through the second step end, and the foolproof boss is arranged on the peripheral side of the second step end.

[0023] In the drug adding adapter of the present invention, a sealing member is provided at one end of the first stepped end away from the second stepped end, so that when the injection end is inserted into the drug adding port, the sealing member can abut against the peripheral side of the drug adding port.

[0024] In the drug adding adapter of the present invention, the second fool-proof portion is a notch provided on the connecting end, and is used to match with the protrusion of the anesthetic bottle.

[0025] In the drug adding adapter of the present invention, the piston mechanism includes a piston member, a spring member and a locking member. The drug adding channel is provided with an abutment end at a position close to the drug outlet. The piston member abuts against the abutment end under the action of the spring member. The locking member is installed at one end of the drug adding channel close to the drug inlet, and the spring member is arranged between the piston member and the locking member.

[0026] According to the third aspect of the present invention, the present invention also provides an anesthetic bottle, comprising a bottle body and a connector, wherein the connector is arranged on the bottle mouth of the bottle body, and the end of the connector away from the bottle body is provided with a drug outlet and a first anti-foolproof portion located outside the drug outlet, wherein the first anti-foolproof portion is used to guide the drug outlet to be connected with the drug adding port of the anesthetic vaporizer.

[0027] In the anesthetic bottle of the present invention, the first fool-proof part is a fool-proof boss arranged on the injection end, and the fool-proof boss is used to match the slide groove on the drug adding port.

[0028] In the anesthetic bottle of the present invention, the fool-proof boss has a boss radial width and a boss circumferential width, the boss radial width is adapted to the radial width of the slide groove, and the boss circumferential width is adapted to the circumferential width of the slide groove.

[0029] The technical solution provided by the embodiments of the present application may include the following beneficial effects: the present application designs a drug adding adapter, an anesthetic bottle and an infusion system. Since a first fool-proof portion for the drug outlet is provided on the injection end, the first fool-proof portion is used to guide the drug outlet to be connected with the drug adding port of the anesthetic vaporizer, thereby ensuring that when the anesthetic vaporizer is added with drugs, the types of the anesthetic bottle and the anesthetic vaporizer are one-to-one corresponding, thereby avoiding drug mixing during the use of the anesthetic vaporizer.

[0030] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying any creative work.

[0032] Figure 1 is a schematic diagram of an anesthesia vaporizer perfusion system provided by one embodiment of the present invention;

[0033] Figure 2 yes Figure 1 A cross-sectional schematic diagram of the perfusion system in FIG.

[0034] Figure 3 yes Figure 1 A partial cross-sectional view of the perfusion system in FIG.

[0035] Figure 4 yes Figure 1 Exploded diagram of the perfusion system in FIG.

[0036] Figure 5 yes Figure 1 A partial schematic diagram of an anesthetic vaporizer;

[0037] Figure 6 yes Figure 1 A schematic cross-sectional view of a dosing adapter;

[0038] Figure 7 yes Figure 1 A schematic cross-sectional view of a dosing port in FIG.

[0039] Figure 8 yes Figure 1 A cross-sectional diagram of the dosing adapter installed after the dosing port;

[0040] Fig. 9 yes Figure 1 Another cross-sectional schematic diagram of the dosing adapter being installed behind the dosing port;

[0041] Fig.10 yes Figure 1 A schematic diagram of the structure of the dosing adapter;

[0042] Fig.11 yes Figure 1 An exploded schematic diagram of the dosing adapter in FIG.

[0043] Fig.12 yes Figure 1 Schematic diagram of the disassembled dosing adapter and anesthetic bottle;

[0044] Fig.13 yes Figure 1 Schematic diagram of assembly of the dosing adapter and the anesthetic bottle;

[0045] Fig.14 yes Figure 1 A cross-sectional schematic diagram of a dosing adapter and an anesthetic bottle;

[0046] Fig.15 It is a structural schematic diagram of an anesthetic bottle provided by one embodiment of the present invention;

[0047] Fig.16 yes Fig.15 Schematic diagram of the cross-section of the anesthetic bottle.

[0048] Description of reference numerals:

[0049] 100, dosing adapter; 200, anesthetic vaporizer; 201, medicine pool; 300, anesthetic bottle; 301, protrusion; 302, first external thread; 303, bottle mouth; 400, connector; 500, medicine bottle body;

[0050] 10. Connecting end; 11. Notch; 12. Concave-convex part; 13. Drug inlet; 131. First internal thread; 20. Liquid injection end; 21. Second stepped end; 211. Anti-fouling boss; 22. First stepped end; 221. Sealing member; 23. Drug outlet; 30. Piston mechanism; 31. Piston member; 311. Concave part; 33. Spring member; 32. Locking member;

[0051] 40. Installation assembly; 41. Slide; 42. Dosing port; 50. Push rod assembly; 60. Valve core assembly; 61. Liquid inlet channel. DETAILED DESCRIPTION

[0052] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0053] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing 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 limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0054] Some embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0055] The anesthesia vaporizer perfusion system of the present application belongs to the field of medical device technology, wherein the anesthesia vaporizer is a special device for controlling the output of volatile anesthetic drugs. Each vaporizer can only use one anesthetic agent, while there are many anesthetic agents commonly used in clinical practice, such as sevoflurane, isoflurane, desflurane, etc. Therefore, each time the anesthesia vaporizer is added, it is necessary to observe repeatedly to avoid drug mixing during the use of the anesthesia vaporizer.

[0056] One of the commonly used methods for adding drugs to an anesthetic vaporizer is to directly open the stopcock of the drug adding port of the anesthetic vaporizer, and to place the mouth of the anesthetic bottle toward the drug adding port of the anesthetic vaporizer, so that the anesthetic bottle containing the anesthetic can be tilted and the anesthetic can be poured into the anesthetic vaporizer. After the drug adding is completed, the stopcock is tightly plugged.

[0057] Among them, anesthetics are generally volatile, such as sevoflurane. In the process of adding drugs to the anesthesia vaporizer, there are no other protective measures, which may easily cause the person adding the drugs to inhale some of the anesthetics, thereby damaging the health of the person adding the drugs. At the same time, it is also difficult to determine whether the anesthesia vaporizer is filled with the matching anesthetic.

[0058] like Figures 1 to 14 As shown, according to the first aspect of the present application, the present application provides an anesthetic vaporizer perfusion system, including a dosing adapter 100, an anesthetic vaporizer 200 and an anesthetic bottle 300, wherein the dosing adapter 100 includes a connecting end 10 and a liquid injection end 20, the liquid injection end 20 is provided with a drug outlet 23 and a first foolproof portion located outside the drug outlet, and the connecting end 10 is provided with a drug inlet 13. In this embodiment, the drug inlet 13 and the drug outlet 23 are interconnected to form a drug adding channel, and a piston mechanism 30 is provided on the drug adding channel, wherein the drug inlet 13 is connected to the bottle mouth 303 of the anesthetic bottle 300, and the first foolproof portion is used to guide the drug outlet 23 to connect with the drug adding port 42 of the anesthetic vaporizer 200; when the liquid injection end 20 is installed in the drug adding port 42 through the first foolproof portion, the valve core on the drug adding port 42 drives the piston mechanism 30 to reciprocate in the drug adding channel, so that the anesthetic bottle 300 can add drugs to the anesthetic vaporizer 200 through the drug adding channel.

[0059] Specifically, the anesthesia vaporizer 200 is provided with an infusion device and a medicine pool 201, wherein the infusion device includes a mounting assembly 40, a push rod assembly 50 and a valve core assembly 60 provided with a liquid inlet channel 61, the push rod assembly 50 and the valve core assembly 60 are both installed in the anesthesia vaporizer 200 through the mounting assembly 40, and one end of the push rod assembly 50 abuts against the mounting assembly 40 to form a sealing structure, and the other end of the push rod assembly 50 is connected to the valve core assembly 60.

[0060] In this embodiment, the dosing port 42 is arranged in the mounting assembly 40, and the valve core assembly 60 is movably mounted in the dosing port 42 through the push rod assembly 50; when the injection end 20 is mounted on the dosing port 42 through the first foolproof portion, the valve core on the push rod assembly 50 abuts against one end of the piston mechanism 30 facing the drug outlet 23, and as the distance of the injection end 20 extending into the dosing port 42 increases, the push rod assembly 50 drives the piston mechanism 30 to move in a direction away from the drug outlet 23, and at the same time, the push rod assembly 50 moves in the opposite direction of the piston mechanism 30, so that the piston mechanism 30 can The sealing of the dosing channel and the push rod assembly 50 can release the sealing of the dosing port 42, so that the anesthetic on the anesthetic bottle 300 can enter the drug outlet 23 from the drug inlet 13 through the drug dosing channel, and then enter the drug pool 201 from the drug outlet 23 through the drug dosing port 42 through the liquid inlet channel 61; when the injection end 20 is separated from the dosing port 42, the piston mechanism 30 and the push rod assembly 50 are reset to form a sealing structure at the dosing port 42 and isolate the drug inlet 13 from the drug outlet 23, so as to prevent the anesthetic from volatilizing and being inhaled by the dosing personnel, thereby ensuring the health of the dosing personnel.

[0061] It should be noted that a first anti-mistake position is provided on the mounting assembly 40 on each anesthetic vaporizer 200. The first anti-mistake position is located on one side of the drug adding port 42 and is used to cooperate with the first anti-mistake portion on the drug adding adapter 100. The first anti-mistake portion and the first anti-mistake position are designed according to the type of anesthetic, so that the first anti-mistake portion and the first anti-mistake position can match each type of anesthetic, thereby avoiding the phenomenon of adding the wrong type of anesthetic to the anesthetic vaporizer 200.

[0062] For example, an anesthetic bottle containing sevoflurane is added to a first anesthetic vaporizer through a first dosing adapter, an anesthetic bottle containing isoflurane is added to a second anesthetic vaporizer through a second dosing adapter, and an anesthetic bottle containing desflurane is added to a third anesthetic vaporizer through a third dosing adapter, and so on; wherein, the first anti-foolproofing parts on the first dosing adapter, the second dosing adapter, and the third dosing adapter are all different, and at the same time, the first anti-foolproofing position on the first anesthetic vaporizer can only be matched with the first anti-foolproofing part on the first dosing adapter, the first anti-foolproofing position on the second dosing adapter can only be matched with the first anti-foolproofing part on the second dosing adapter, and the first anti-foolproofing part on the third dosing adapter can only be matched with the first anti-foolproofing part on the third dosing adapter, thereby avoiding drug mixing during use of the anesthetic vaporizer 200 and ensuring that the types of anesthetic bottles and anesthetic vaporizers correspond one to one when adding drugs.

[0063] In addition, the dosing adapter 100 can be matched with the anesthetic bottle 300 by color or anesthetic-specific coding, for example, a red dosing adapter 100 is matched with an anesthetic bottle containing sevoflurane, so that the anesthetic bottle containing sevoflurane can be added to a first anesthetic vaporizer through the red dosing adapter 100, or an orange dosing adapter 100 is matched with an anesthetic bottle containing isoflurane, so that the anesthetic bottle containing isoflurane can be added to a second anesthetic vaporizer through the orange dosing adapter 100, and so on.

[0064] After adopting the above technical solution, since the injection end 20 on the drug adding adapter 100 is connected to the drug adding port 42 on the anesthesia vaporizer 200 through the first fool-proof part, it can ensure that the anesthetic on the anesthetic bottle 300 corresponds to the type of the anesthesia vaporizer 200 during drug addition, thereby avoiding drug mixing during use of the anesthesia vaporizer 200 and affecting the safety of the patient.

[0065] In an optional embodiment, a second fool-proof portion is provided on the connecting end 10 , and the second fool-proof portion is arranged on the outer side of the drug inlet 13 for guiding the drug inlet 13 to be connected to the bottle mouth of the anesthetic bottle 300 .

[0066] Specifically, a movable ring is provided on the anesthetic bottle 300, and a second anti-foolproof position is provided on the movable ring for cooperating with the second anti-foolproof part, so that the connecting end 10 can be installed on the corresponding anesthetic bottle 300 through the cooperation between the second anti-foolproof part and the second anti-foolproof position, so that the anesthetic bottle 300 can add medicine to the corresponding anesthetic vaporizer 200 through the corresponding dosing adapter 100.

[0067] It should be noted that the second anti-mistake position on the anesthetic bottle 300 is designed differently due to the different types of anesthetics contained therein, and the shape and size of the second anti-mistake portion are adapted to the shape and size of the second anti-mistake position, so that each type of dosing adapter 100 can be installed on the corresponding anesthetic bottle 300, and then the dosing adapter 100 is used to add medicine to the corresponding anesthetic vaporizer 200, which not only ensures that the dosing adapter 100 can be connected to the corresponding anesthetic bottle 300, but also ensures that the type of the dosing adapter 100 corresponds to the type of the anesthetic vaporizer 200 when adding medicine, further avoiding the phenomenon of drug mixing during the use of the anesthetic vaporizer 200, which affects the safety of the patient.

[0068] In an optional embodiment, the first anti-foolproof portion is an anti-foolproof boss 211 arranged on the injection end, and a slide groove 41 matching the anti-foolproof boss 211 is provided on the dosing port 42 to form a first anti-foolproof position, so that the injection end 20 can pass through the anti-foolproof boss 211 along the slide groove 41 into the dosing port 42.

[0069] Specifically, there is only one anti-mistake boss 211 and one slide groove 41, which not only simplifies the molding process of the dosing adapter 100 and the dosing port 42, but also makes the structure relatively simple and low-cost; it also plays an anti-mistake role, so that the anti-mistake boss 211 of the anesthetic bottle 300 can be accurately aligned with the slide groove 41 when dosing, avoiding the phenomenon of drug mixing during the use of the anesthetic vaporizer 200, which affects the safety of the patient.

[0070] In an optional embodiment, the anti-foolproof boss 211 has a boss radial width D1 and a boss circumferential width D2, wherein the slide groove 41 has a slide groove radial width L1 and a slide groove circumferential width L2, wherein the size of the boss radial width D1 is adapted to the size of the slide groove radial width L1, and the size of the boss circumferential width D2 is adapted to the size of the slide groove circumferential width L2, so that the anti-foolproof boss 211 can enter the dosing port 42 along the slide groove 41. The anti-foolproof design is performed using two dimensions of the anti-foolproof boss 211, which not only has a relatively simple structure, but also is easy to manufacture and operate, and has low cost.

[0071] For example, the radial width D1 of the boss of the first dosing adapter and the radial width L1 of the slide of the first anesthetic vaporizer are both 1mm, and the circumferential width D2 of the boss of the first dosing adapter and the circumferential width L2 of the slide of the first anesthetic vaporizer are both 7mm; the radial width D1 of the boss of the second dosing adapter and the radial width L1 of the slide of the second anesthetic vaporizer are both 1.2mm, and the circumferential width D2 of the boss of the second dosing adapter and the circumferential width L2 of the slide of the second anesthetic vaporizer are both 6.8mm; The radial width D1 of the boss and the radial width L1 of the slide of the third anesthetic vaporizer are both 1.4 mm, and the circumferential width D2 of the boss of the third anesthetic vaporizer and the circumferential width L2 of the slide of the third anesthetic vaporizer are both 6.5 mm; therefore, the first anesthetic vaporizer adapter cannot be matched with the slide 41 of the second anesthetic vaporizer or the third anesthetic vaporizer through the anti-foolproof boss 211, and the anti-foolproof boss 211 of the second anesthetic vaporizer adapter cannot be matched with the slide 41 of the first anesthetic vaporizer or the second anesthetic vaporizer through the anti-foolproof boss 211, and so on.

[0072] It should be noted that the radial width D1 and the circumferential width D2 of the fool-proof boss 211 can be used alternately, so that each type of dosing adapter 100 has a corresponding fool-proof boss 211, and the fool-proof boss 211 can only cooperate with the slide groove 41 on the corresponding anesthesia vaporizer. In addition, the fool-proof boss 211 can also be fool-proof by using its shape. For example, the fool-proof boss 211 can be a dovetail boss that cooperates with a dovetail groove. The fool-proof effect is achieved by changing the size of the dovetail boss and the slope of the two sides. This application is not limited.

[0073] In an optional embodiment, the injection end 20 includes a first step end 22 and a second step end 21, wherein the first step end 22 is connected to the connection end 10 through the second step end 21. In this embodiment, the foolproof boss 211 is arranged on the peripheral side of the second step end 21, the diameter of the first step end 22 is smaller than the diameter of the dosing port 42, and the diameter of the second step end 21 is adapted to the diameter of the dosing port 42, which can not only play a guiding role, but also prevent the anesthetic from volatilizing outward from the gap between the second step end 21 and the dosing port 42 when the anesthetic bottle 300 is added to the anesthetic vaporizer 200 through the dosing adapter 100.

[0074] In an optional embodiment, a sealing member 221 is provided at the end of the first stepped end 22 away from the second stepped end 21, so that when the injection end 20 is inserted into the drug adding port, the sealing member 221 can abut against the peripheral side of the drug adding port 42 to form a sealing structure, thereby once again preventing the anesthetic from volatilizing outward from the gap between the injection end 20 and the drug adding port 42 when the anesthetic bottle 300 is added to the anesthetic vaporizer 200 through the drug adding adapter 100.

[0075] Specifically, since the diameter of the first step end 22 is smaller than the diameter of the drug adding port 42, and the seal 221 is arranged on the first step end 22, when the anesthetic bottle 300 adds drugs to the anesthetic vaporizer 200 through the drug adding adapter 100, the first step end 22 first enters the drug adding port 42, that is, the seal 221 first forms a sealing effect with the drug adding port 42, and then the second step end 21 enters the drug adding port 42, and the push rod assembly 50 drives the piston mechanism 30 to move in the direction away from the drug outlet 23. At the same time, the push rod assembly 50 moves in the opposite direction of the piston mechanism 30, so that the anesthetic on the anesthetic bottle 300 can enter the drug pool 201 from the drug adding channel through the liquid inlet channel 61.

[0076] It should be emphasized that since the valve core assembly 60 is connected to the push rod assembly 50, the push rod assembly 50 drives the valve core assembly 60 to move toward the medicine pool 201 during the drug adding process; during the drug adding process, the gas in the medicine pool 201 is exhausted from the liquid inlet channel 61 to the anesthetic bottle 300. When the anesthetic in the medicine pool 201 covers the liquid inlet channel 61, the exhaust channel between the medicine pool 201 and the anesthetic bottle 300 is cut off, so that the anesthetic bottle 300 automatically stops adding drugs to the medicine pool 201, avoiding anesthetic overflow and residue during the drug adding process, thereby ensuring the safety of drug adding and use by the drug adding personnel.

[0077] In an optional embodiment, the push rod assembly 50 includes a push rod 51 having a valve core, an elastic member 53 and a clamping member 52, wherein the push rod 51 is movably installed in the dosing port 42 through the clamping member 52, and the valve core assembly 60 is connected to one end of the push rod 51 away from the dosing port 42. In this embodiment, one end of the elastic member 53 abuts against the push rod 51, and the other end of the elastic member 51 abuts against the end of the dosing port 42 away from the opening, which not only enables the push rod 51 to always have a sealing effect with the dosing port 42 without the action of external force, but also enables the push rod 51 to drive the valve core assembly 60 to reciprocate along the axial direction of the dosing port 42 under the drive of the elastic member 51 or the piston mechanism 30, and at the same time, the push rod 51 can also drive the piston mechanism 30 to move toward the direction of the connecting end 10, thereby releasing the sealing of the dosing channel by the piston mechanism 30.

[0078] In an optional embodiment, the first fool-proofing portion is an fool-proofing slide groove arranged on the injection end, and an fool-proofing protrusion matching the fool-proofing slide groove is provided on the dosing port 42, so that the injection end 20 can enter the dosing port 42 along the fool-proofing protrusion through the fool-proofing slide groove.

[0079] In an optional embodiment, the second anti-foolproof portion is a notch 11 provided on the connecting end 10, and the second anti-foolproof position is a protrusion 301 provided on the movable ring, and the shape and size of the protrusion 301 match the shape and size of the notch 11, so that the connecting end 10 can be installed on the bottle mouth 303 of the anesthetic bottle 300 through the cooperation between the notch 11 and the protrusion 301.

[0080] It should be noted that the structure of the protrusion 301 of the anesthetic bottle 300 is designed according to the type of anesthetic contained in it, ensuring that each type of dosing adapter 100 can only be connected to its corresponding anesthetic bottle 300. The structure is relatively simple, easy to manufacture and operate, and low cost.

[0081] In an optional embodiment, a first external thread 302 is provided at the bottle mouth of the anesthetic bottle 300, and a first internal thread 131 is provided in the drug inlet 13. When the connecting end 10 is connected to the anesthetic bottle 300, the first internal thread 131 is connected to the first external thread 302, which can ensure the reliability of the connection between the drug adapter 100 and the anesthetic bottle 300, effectively prevent the anesthetic from volatilizing and leaking from the connection between the drug adapter 100 and the anesthetic bottle 300, avoid the waste of anesthetic, and at the same time avoid environmental pollution, thereby ensuring the health of the drug adding personnel.

[0082] In an optional embodiment, a concave-convex portion 12 is provided on the outer side of the connecting end 10 , which can play a good anti-slip role during the use of the dosing adapter 100 , so as to install the dosing adapter 100 on the bottle mouth of the anesthetic bottle 300 .

[0083] In an optional embodiment, the piston mechanism 30 includes a piston member 31, a spring member 33 and a locking member 32, wherein the drug adding channel is provided with an abutting end at a position close to the drug outlet 23, the locking member 32 is installed at one end of the drug adding channel close to the drug inlet 13, and the spring member 33 is arranged between the piston member 31 and the locking member 32, so that the piston member 31 can abut against the abutting end under the action of the spring member 33 and form a sealing structure, thereby preventing the anesthetic in the anesthetic bottle 300 from volatilizing or leaking from the drug outlet 23 in the absence of external force.

[0084] In an optional embodiment, a protrusion is provided at one end of the piston member 31 facing the abutting end, and the diameter of the protrusion is adapted to the diameter of the drug adding channel at the abutting end, so that the piston member 31 can form a sealing structure with the drug adding channel at the abutting end through the protrusion, once again preventing the anesthetic in the anesthetic bottle 300 from volatilizing or leaking from the drug outlet 23.

[0085] In an optional embodiment, a recessed portion 311 is provided on the raised portion, and when the injection end 20 is connected to the anesthetic vaporizer 200, the valve core on the drug adding port 42 abuts against the recessed portion 311, which is used to drive the piston 31 to move along the axis of the drug adding channel and toward the drug inlet 13.

[0086] In an optional embodiment, a second external thread is provided on the locking member 32, and a second internal thread is provided on the drug adding channel at one end close to the drug inlet 13, wherein the second external thread is threadably connected to the second internal thread so that the locking member 32 can be firmly fixed in the drug adding channel, and the piston member 31 can move between the abutting end and the locking member 32.

[0087] According to the second aspect of the present application, Figures 10 to 14 As shown, the present application also provides a drug adding adapter 100, including a connection end 10 and a liquid injection end 20, wherein the connection end 10 is provided with a drug inlet 13 and a second foolproof portion located outside the drug inlet 13, and the liquid injection end 20 is provided with a drug outlet 23 and a first foolproof portion located outside the drug outlet 23. In this embodiment, the drug inlet 13 and the drug outlet 23 are interconnected to form a drug adding channel, the second foolproof portion is used to guide the drug inlet 13 to be connected to the bottle mouth of the anesthetic bottle, and the first foolproof portion is used to guide the drug outlet 23 to be connected to the drug adding port of the anesthetic vaporizer.

[0088] After adopting the above technical solution, since the injection end 20 is connected to the drug adding port 42 on the anesthesia vaporizer 200 through the first anti-mistake part, and the connection end 10 is connected to the bottle mouth of the anesthetic bottle through the second anti-mistake part, it can be ensured that when adding the drug, the anesthetic on the anesthetic bottle corresponds to the type of the anesthesia vaporizer one by one, thereby avoiding the phenomenon of drug mixing during the use of the anesthesia vaporizer, which affects the safety of the patient.

[0089] In an optional embodiment, the first fool-proofing portion is an fool-proofing boss 211 arranged on the injection end, and a slide groove matching the fool-proofing boss 211 is provided on the drug adding port 42, so that the injection end 20 can enter the drug adding port along the slide groove through the fool-proofing boss 211.

[0090] Specifically, there is only one anti-mistake boss 211 and one slide groove, which not only simplifies the molding process of the dosing adapter 100 and the dosing port, but also makes the structure relatively simple and low-cost; it also plays an anti-mistake role, so that the anti-mistake boss 211 can be accurately aligned with the slide groove when the anesthetic bottle is dosing, avoiding the phenomenon of drug mixing during the use of the anesthetic vaporizer, which affects the safety of the patient.

[0091] In an optional embodiment, the anti-foolproof boss 211 has a boss radial width and a boss circumferential width, wherein the slide groove has a slide groove radial width and a slide groove circumferential width, wherein the size of the boss radial width is adapted to the size of the slide groove radial width, and the size of the boss circumferential width is adapted to the size of the slide groove circumferential width, so that the anti-foolproof boss 211 can enter the dosing port along the slide groove. The anti-foolproof design is performed using two dimensions of the anti-foolproof boss 211, which not only has a relatively simple structure, but also is easy to manufacture and operate, and has low cost.

[0092] For example, the radial width of the boss of the first drug dosing adapter and the radial width of the slide groove of the first anesthetic evaporator are both 1mm, and the circumferential width of the boss of the first drug dosing adapter and the circumferential width of the slide groove of the first anesthetic evaporator are both 7mm; the radial width of the boss of the second drug dosing adapter and the radial width of the slide groove of the second anesthetic evaporator are both 1.2mm, and the circumferential width of the boss of the second drug dosing adapter and the circumferential width of the slide groove of the second anesthetic evaporator are both 6.8mm; the radial width of the boss of the third drug dosing adapter and the radial width of the slide groove of the third anesthetic evaporator are both 1.4mm, and the circumferential width of the boss of the third drug dosing adapter and the circumferential width of the slide groove of the third anesthetic evaporator are both 6.5mm; therefore, the first drug dosing adapter cannot cooperate with the slide groove of the second anesthetic evaporator or the third anesthetic evaporator through the anti-foolproof boss 211, and the anti-foolproof boss 211 of the second drug dosing adapter cannot cooperate with the slide groove of the first drug dosing adapter or the second anesthetic evaporator through the anti-foolproof boss 211, and so on.

[0093] It should be noted that the radial width and circumferential width of the fool-proof boss 211 can be used alternately, so that each dosing adapter has a corresponding fool-proof boss 211, and the fool-proof boss 211 can only cooperate with the slide groove on the corresponding anesthesia vaporizer. In addition, the fool-proof boss 211 can also be fool-proof by using its shape. For example, the fool-proof boss 211 can be a dovetail boss that cooperates with a dovetail groove. The fool-proof effect is achieved by changing the size of the dovetail boss and the slope of the two sides. This application is not limited.

[0094] In an optional embodiment, the injection end 20 includes a first step end 22 and a second step end 21, wherein the first step end 22 is connected to the connection end 10 through the second step end 21. In this embodiment, the foolproof boss 211 is arranged on the peripheral side of the second step end 21, the diameter of the first step end 22 is smaller than the diameter of the dosing port, and the diameter of the second step end 21 is adapted to the diameter of the dosing port, which can not only play a guiding role, but also prevent the anesthetic from volatilizing outward from the gap between the second step end 21 and the dosing port when the anesthetic bottle is dosing the anesthetic vaporizer through the dosing adapter 100.

[0095] In an optional embodiment, a sealing member 221 is provided at the end of the first stepped end 22 away from the second stepped end 21, so that when the injection end 20 is inserted into the drug adding port, the sealing member 221 can abut against the peripheral side of the drug adding port to form a sealing structure, thereby once again preventing the anesthetic from evaporating outward from the gap between the injection end 20 and the drug adding port when the anesthetic bottle 300 is added to the anesthetic vaporizer through the drug adding adapter 100.

[0096] Specifically, since the diameter of the first step end 22 is smaller than the diameter of the drug adding port, and the seal 221 is arranged on the first step end 22, when the anesthetic bottle adds drugs to the anesthetic vaporizer through the drug adding adapter 100, the first step end 22 first enters the drug adding port, that is, the seal 221 first forms a sealing effect with the drug adding port, and then the second step end 21 enters the drug adding port, and the push rod assembly in the drug adding port drives the piston mechanism 30 to move in the direction away from the drug outlet 23. At the same time, the push rod assembly moves in the opposite direction of the piston mechanism 30, so that the anesthetic on the anesthetic bottle can enter the drug pool from the drug adding channel through the liquid inlet channel.

[0097] In an optional embodiment, the second anti-foolproof portion is a notch 11 provided on the connecting end 10, and the second anti-foolproof position is a protrusion provided on the movable ring, and the shape and size of the protrusion match the shape and size of the notch 11, so that the connecting end 10 can be installed on the bottle mouth of the anesthetic bottle through the cooperation between the notch 11 and the protrusion.

[0098] It should be noted that the raised structure of the anesthetic bottle is designed according to the type of anesthetic contained in it, ensuring that each type of dosing adapter 100 can only be connected to its corresponding anesthetic bottle. The structure is relatively simple, easy to manufacture and operate, and low cost.

[0099] In an optional embodiment, the piston mechanism 30 includes a piston member 31, a spring member 33 and a locking member 32, wherein the drug adding channel is provided with an abutting end at a position close to the drug outlet 23, the locking member 32 is installed at one end of the drug adding channel close to the drug inlet 13, and the spring member 33 is arranged between the piston member 31 and the locking member 32, so that the piston member 31 can abut against the abutting end under the action of the spring member 33 and form a sealing structure, thereby preventing the anesthetic in the anesthetic bottle 300 from volatilizing or leaking from the drug outlet 23 in the absence of external force.

[0100] According to the third aspect of this application, Figure 15 to Figure 16 As shown, the present application also provides an anesthetic bottle, including a bottle body 500 and a connector 400, wherein the connector 400 is arranged on the bottle mouth of the bottle body 500, and the end of the connector 400 away from the bottle body 500 is provided with a drug outlet 23 and a first anti-mistake portion located outside the drug outlet, and the first anti-mistake portion is used to guide the drug outlet 23 to be connected with the drug adding port of the anesthetic vaporizer.

[0101] It should be noted that the connector 400 is fixedly connected or integrally formed with the medicine bottle body 500, which reduces the need for the medicine bottle body 500 to add medicine to the anesthetic vaporizer through a medicine adding adapter, improves the efficiency of medicine adding, and also saves a lot of labor costs.

[0102] In an optional embodiment, the first fool-proofing portion is an fool-proofing boss 211 disposed on the connector 400, and a slide groove matching the fool-proofing boss 211 is provided on the drug adding port of the anesthetic vaporizer, so that the connector 400 can enter the drug adding port along the slide groove through the fool-proofing boss 211.

[0103] Specifically, there is only one anti-middle-stage boss 211 and one slide groove, which not only simplifies the molding process of the connector and the drug adding port, but also makes the structure relatively simple and low-cost; it also plays an anti-middle-stage role, so that the anti-middle-stage boss 211 can be accurately aligned with the slide groove when adding drugs to the anesthetic bottle, avoiding drug mixing during the use of the anesthetic vaporizer, which affects the safety of the patient.

[0104] In an optional embodiment, the anti-foolproof boss 211 has a boss radial width and a boss circumferential width, wherein the slide groove has a slide groove radial width and a slide groove circumferential width, wherein the size of the boss radial width is adapted to the size of the slide groove radial width, and the size of the boss circumferential width is adapted to the size of the slide groove circumferential width, so that the anti-foolproof boss 211 can enter the dosing port along the slide groove. The anti-foolproof design is performed using two dimensions of the anti-foolproof boss 211, which not only has a relatively simple structure, but also is easy to manufacture and operate, and has low cost.

[0105] For example, the radial width of the boss of the first connector and the radial width of the slide of the first anesthetic vaporizer are both 1mm, and the circumferential width of the boss of the first connector and the circumferential width of the slide of the first anesthetic vaporizer are both 7mm; the radial width of the boss of the second connector and the radial width of the slide of the second anesthetic vaporizer are both 1.2mm, and the circumferential width of the boss of the second connector and the circumferential width of the slide of the second anesthetic vaporizer are both 6.8mm; the radial width of the boss of the third connector and the radial width of the slide of the third anesthetic vaporizer are both 1.4mm, and the circumferential width of the boss of the third connector and the circumferential width of the slide of the third anesthetic vaporizer are both 6.5mm; therefore, the first connector cannot cooperate with the slide of the second anesthetic vaporizer or the third anesthetic vaporizer through the anti-foolproof boss 211, and the anti-foolproof boss 211 of the second connector cannot cooperate with the slide of the first anesthetic vaporizer or the second anesthetic vaporizer through the anti-foolproof boss 211, and so on.

[0106] It should be noted that the radial width and circumferential width of the fool-proof boss 211 can be used alternately, so that each type of connector has a corresponding fool-proof boss 211, and the fool-proof boss 211 can only cooperate with the corresponding slide groove on the anesthetic vaporizer. In addition, the fool-proof boss 211 can also be fool-proof by using its shape. For example, the fool-proof boss 211 can be a dovetail boss that cooperates with a dovetail groove. The fool-proof effect is achieved by changing the size of the dovetail boss and the slope of the two sides. This application does not limit this.

[0107] In an optional embodiment, the injection end 20 includes a first step end 22 and a second step end 21, wherein the first step end 22 is connected to the connection end 10 through the second step end 21. In this embodiment, the foolproof boss 211 is arranged on the peripheral side of the second step end 21, the diameter of the first step end 22 is smaller than the diameter of the dosing port, and the diameter of the second step end 21 is adapted to the diameter of the dosing port, which not only plays a guiding role, but also prevents the anesthetic from volatilizing outward from the gap between the second step end 21 and the dosing port when the anesthetic bottle is added to the anesthetic vaporizer through the connector.

[0108] In an optional embodiment, a sealing member 221 is provided at the end of the first stepped end 22 away from the second stepped end 21, so that when the injection end 20 is inserted into the drug adding port, the sealing member 221 can abut against the peripheral side of the drug adding port to form a sealing structure, thereby once again preventing the anesthetic from evaporating outward from the gap between the injection end 20 and the drug adding port when the anesthetic bottle is added to the anesthetic vaporizer through the connecting head.

[0109] Specifically, since the diameter of the first step end 22 is smaller than the diameter of the drug adding port, and the seal 221 is arranged on the first step end 22, when the anesthetic bottle adds drugs to the anesthetic vaporizer through the connecting head, the first step end 22 first enters the drug adding port, that is, the seal 221 first forms a sealing effect with the drug adding port, and then the second step end 21 enters the drug adding port, and the push rod assembly in the drug adding port drives the piston mechanism 30 to move in the direction away from the drug outlet 23. At the same time, the push rod assembly moves in the opposite direction of the piston mechanism 30, so that the anesthetic on the anesthetic bottle can enter the drug pool from the drug adding channel through the liquid inlet channel.

[0110] In an optional embodiment, the piston mechanism 30 includes a piston member 31, a spring member 33 and a locking member 32, wherein the drug adding channel is provided with an abutting end at a position close to the drug outlet 23, the locking member 32 is installed at one end of the drug adding channel close to the drug inlet 13, and the spring member 33 is arranged between the piston member 31 and the locking member 32, so that the piston member 31 can abut against the abutting end under the action of the spring member 33 and form a sealing structure, thereby preventing the anesthetic in the anesthetic bottle from volatilizing or leaking from the drug outlet 23 in the absence of external force.

[0111] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" 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 or an electrical connection. It can be directly connected or indirectly connected 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 present invention can be understood according to specific circumstances.

[0112] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0113] The disclosure above provides many different embodiments or examples for realizing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described above. Of course, they are merely examples, and the purpose is not to limit the present invention. In addition, the present invention may repeat reference numerals 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. In addition, the present invention provides various specific examples of processes and materials, but those of ordinary skill in the art may appreciate the application of other processes and / or the use of other materials.

[0114] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the present invention. 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 may be combined in any one or more embodiments or examples in a suitable manner.

[0115] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An anesthesia vaporizer perfusion system, It is characterized in that It comprises an anesthetic bottle, a dosing adapter and an anesthetic vaporizer, the dosing adapter comprises a connecting end and a liquid injection end, the liquid injection end is provided with a drug outlet and a first fool-proof portion located outside the drug outlet, the connecting end is provided with a drug inlet, the drug inlet and the drug outlet are interconnected to form a drug adding channel, the first fool-proof portion is used to guide the drug outlet to be connected to the drug adding port of the anesthetic vaporizer, and the drug inlet is connected to the bottle mouth of the anesthetic bottle; Wherein, a piston mechanism is provided on the dosing channel, and an injection device is provided on the anesthetic vaporizer, the injection device includes a mounting assembly and a push rod assembly, the push rod assembly includes a push rod member with a valve core, an elastic member and a clamping member, the push rod member is movably installed in the dosing port through the clamping member, one end of the elastic member abuts against the push rod member, and the other end of the elastic member abuts against an end of the dosing port facing away from the opening, when the injection end is installed in the dosing port through the first anti-foolproof part, the valve core drives the piston mechanism to reciprocate in the dosing channel, and when the piston mechanism moves in a direction away from the drug outlet, the valve core moves in the opposite direction of the piston mechanism, so that the piston mechanism can release the seal of the dosing channel, and the push rod assembly can release the seal of the dosing port, so that the anesthetic bottle can add medicine to the anesthetic vaporizer through the dosing channel.

2. The perfusion system according to claim 1, It is characterized in that The perfusion device also includes a valve core assembly provided with a liquid inlet channel, and the valve core assembly is connected to an end of the push rod member away from the drug adding port. When the anesthetic in the anesthetic vaporizer covers the liquid inlet channel, the exhaust channel between the anesthetic vaporizer and the anesthetic bottle is cut off, and the anesthetic bottle stops adding drugs to the anesthetic vaporizer; when the elastic member drives the push rod member to drive the valve core assembly to reset, the anesthetic in the liquid inlet channel enters the anesthetic vaporizer to fill the gap left by the valve core assembly moving toward the piston mechanism.

3. The perfusion system according to claim 1, It is characterized in that A second fool-proofing portion is provided on the connecting end, and the second fool-proofing portion is arranged on the outer side of the drug inlet and is used to guide the drug inlet to be connected with the bottle mouth of the anesthetic bottle.

4. The perfusion system according to claim 1 or 3, It is characterized in that The first fool-proofing part is an fool-proofing boss arranged on the injection end, and the drug adding port is provided with a slide groove matching the fool-proofing boss, so that the injection end can enter the drug adding port through the fool-proofing boss along the slide groove.

5. The perfusion system according to claim 4, It is characterized in that The anti-foolproof boss has a boss radial width and a boss circumferential width, and the slide groove has a slide groove radial width and a slide groove circumferential width. The size of the boss radial width is adapted to the size of the slide groove radial width, and the size of the boss circumferential width is adapted to the size of the slide groove circumferential width.

6. The perfusion system according to claim 5, It is characterized in that The injection end includes a first step end and a second step end, the first step end is connected to the connecting end through the second step end, the anti-fool boss is arranged on the peripheral side of the second step end, the diameter of the first step end is smaller than the diameter of the dosing port, and the diameter of the second step end is adapted to the diameter of the dosing port.

7. The perfusion system according to claim 6, It is characterized in that The first stepped end is provided with a sealing member at an end away from the second stepped end.

8. The perfusion system according to claim 1, It is characterized in that The first fool-proofing part is an fool-proofing slide groove arranged on the injection end, and the drug adding port is provided with an fool-proofing protrusion matching the fool-proofing slide groove, so that the injection end can enter the drug adding port through the fool-proofing slide groove along the fool-proofing protrusion.

9. The perfusion system according to claim 3, It is characterized in that The second fool-proofing portion is a notch arranged on the connecting end, the mouth of the anesthetic bottle is provided with a movable ring, the movable ring is provided with a protrusion matching the notch, and the connecting end is connected to the mouth of the anesthetic bottle through the cooperation of the notch and the protrusion.

10. The perfusion system according to claim 9, It is characterized in that The bottle mouth of the anesthetic bottle is provided with a first external thread, and the medicine inlet is provided with a first internal thread. When the connecting end is connected to the anesthetic bottle, the first internal thread is connected to the first external thread.

11. The perfusion system according to claim 1, It is characterized in that The piston mechanism includes a piston member, a spring member and a locking member. The drug adding channel is provided with an abutment end at a position close to the drug outlet. The locking member is installed at one end of the drug adding channel close to the drug inlet. The spring member is arranged between the piston member and the locking member. The piston member abuts against the abutment end under the action of the spring member.

12. The perfusion system according to claim 11, It is characterized in that A protrusion is provided at one end of the piston member facing the abutting end, and the diameter of the protrusion matches the diameter of the drug adding channel at the abutting end.

13. The perfusion system according to claim 12, It is characterized in that The protruding portion is provided with a recessed portion, and when the liquid injection end is connected to the anesthesia vaporizer, the valve core on the drug adding port abuts against the recessed portion.

14. A perfusion system according to any one of claims 11 to 13, It is characterized in that The locking member is provided with a second external thread, and the drug adding channel is provided with a second internal thread at one end close to the drug inlet, and the second external thread is threadably connected with the second internal thread.

15. A dosing adapter, It is characterized in that It comprises a connecting end and a liquid injection end, wherein the connecting end is provided with a drug inlet and a second fool-proof part located outside the drug inlet, the liquid injection end is provided with a drug outlet and a first fool-proof part located outside the drug outlet, the drug inlet and the drug outlet are interconnected to form a drug adding channel, the second fool-proof part is used to guide the drug inlet to be connected to the bottle mouth of the anesthetic bottle, and the first fool-proof part is used to guide the drug outlet to be connected to the drug adding port of the anesthetic vaporizer; Wherein, a piston mechanism is provided on the dosing channel, and a filling device is provided on the dosing port, the filling device includes a mounting assembly and a push rod assembly, the push rod assembly includes a push rod member with a valve core, an elastic member and a clamping member, the push rod member is movably installed in the dosing port through the clamping member, one end of the elastic member abuts against the push rod member, and the other end of the elastic member abuts against an end of the dosing port facing away from the opening, when the injection end is installed in the dosing port through the first anti-foolproof portion, the valve core on the dosing port drives the piston mechanism to reciprocate in the dosing channel, so that the anesthetic bottle can add medicine to the anesthetic vaporizer through the dosing channel.

16. The drug addition adapter according to claim 15, It is characterized in that The first fool-proofing part is a fool-proofing boss arranged on the liquid injection end, and the fool-proofing boss is used to match the slide groove on the drug adding port.

17. The medication adapter according to claim 16, It is characterized in that The fool-proof boss has a boss radial width and a boss circumferential width. The boss radial width is matched with the radial width of the slide groove, and the boss circumferential width is matched with the circumferential width of the slide groove.

18. The medication adapter according to claim 17, It is characterized in that The injection end includes a first step end and a second step end, the first step end is connected to the connection end through the second step end, and the fool-proof boss is arranged on the peripheral side of the second step end.

19. The medication adapter according to claim 18, It is characterized in that The first stepped end is provided with a sealing member at one end away from the second stepped end, so that when the injection end is inserted into the drug adding port, the sealing member can abut against the peripheral side of the drug adding port.

20. The medication adapter according to claim 15, It is characterized in that The second fool-proof portion is a notch arranged on the connecting end, which is used to match the protrusion of the anesthetic bottle.

21. The medication adapter according to claim 15, It is characterized in that The piston mechanism includes a piston member, a spring member and a locking member. The drug adding channel is provided with an abutment end at a position close to the drug outlet. The piston member abuts against the abutment end under the action of the spring member. The locking member is installed at one end of the drug adding channel close to the drug inlet, and the spring member is arranged between the piston member and the locking member.

22. An anesthetic bottle, It is characterized in that It comprises a medicine bottle body and a connector, wherein the connector is arranged on the bottle mouth of the medicine bottle body, and an end of the connector away from the medicine bottle body is provided with a medicine outlet and a first fool-proof part located outside the medicine outlet, wherein the first fool-proof part is used to guide the medicine outlet to be connected with the medicine adding port of the anesthetic vaporizer; Wherein, a piston mechanism is provided on the drug outlet, and an infusion device is provided on the anesthetic vaporizer, the infusion device includes a mounting assembly and a push rod assembly, the push rod assembly includes a push rod member with a valve core, an elastic member and a clamping member, the push rod member is movably installed in the drug adding port through the clamping member, one end of the elastic member abuts against the push rod member, and the other end of the elastic member abuts against an end of the drug adding port facing away from the opening, when the drug outlet is installed in the drug adding port through the first anti-mistake portion, the valve core drives the piston mechanism to move toward the side away from the anesthetic vaporizer, and the valve core moves in the opposite direction of the piston mechanism, so that the piston mechanism can release the seal of the drug adding channel, and the push rod assembly can release the seal of the drug adding port, so that the anesthetic bottle can add medicine to the anesthetic vaporizer through the drug adding channel.

23. The anesthetic bottle according to claim 22, It is characterized in that The first fool-proofing portion is a fool-proofing boss arranged on the connecting head, and the fool-proofing boss is used to match the slide groove on the drug adding port.

24. The anesthetic bottle according to claim 23, It is characterized in that The fool-proof boss has a boss radial width and a boss circumferential width. The boss radial width is matched with the radial width of the slide groove, and the boss circumferential width is matched with the circumferential width of the slide groove.

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