CN115671466A

CN115671466A - Adapter of anesthetic medicine bottle and anesthetic evaporation device

Info

Publication number: CN115671466A
Application number: CN202110853037.9A
Authority: CN
Inventors: 王从权; 邬学涛
Original assignee: Shenzhen Mindray Bio Medical Electronics Co Ltd
Current assignee: Shenzhen Mindray Bio Medical Electronics Co Ltd
Priority date: 2021-07-27
Filing date: 2021-07-27
Publication date: 2023-02-03

Abstract

The utility model provides an adapter and anesthetic evaporation plant of anesthetic medicine bottle, this adapter include medicine bottle butt joint end and evaporimeter butt joint end, and this medicine bottle butt joint end has the medicine bottle butt joint structure that is used for with the bottle mouth end butt joint of medicine bottle, can dock some medicine bottles that have special bottleneck design. The butt joint end of the evaporator is provided with an evaporator butt joint structure for butt joint with the medicine inlet end of the evaporator. The medicine bottle butt joint structure is provided with a first fluid channel, the evaporator butt joint structure is provided with a second fluid channel, the first fluid channel is communicated with the second fluid channel in a sealing mode, and anesthetic in some medicine bottles which cannot be directly butted with the evaporator can be supplied into the evaporator through the adapter. Moreover, after the adapter is in butt joint with the medicine bottle, the valve core in the medicine bottle can be directly opened through the filling auxiliary piece, so that the medicine bottle is communicated with the adapter, and convenience is improved. And this seal structure then can guarantee that medicine bottle and adapter form sealed butt joint earlier, then open the medicine bottle, avoid the leakage of medicine.

Description

Adapter of anesthetic medicine bottle and anesthetic evaporation device

Technical Field

The application relates to medical equipment, in particular to an adapter of an anesthetic medicine bottle.

Background

The vaporizer is an essential component of an anesthetic breathing system. During the use of the anesthesia machine, the anesthetic is often required to be filled into the evaporator from the anesthetic medicine bottle, and the medicine adding adapter with a special interface of the partial anesthetic medicine bottle can only be connected with the inlet of the specific evaporator. The anesthetic belongs to a consumable and needs to be replaced frequently, so that a part of evaporators cannot be added with drugs easily, and great inconvenience is caused in clinical use.

Generally, clinically used anesthetics and vaporizers have a clear correspondence in view of medical safety. In the case of sevoflurane, sevoflurane anesthetic agents typically have a dedicated vaporizer, i.e., the sevoflurane vaporizer receives only sevoflurane anesthetic agent. There is therefore a correspondence between the type of anesthetic agent and the vaporizer, and one vaporizer may not be shared between different anesthetic agents. Therefore, there is also a need to prevent misuse leading to safety issues when applying a particular anesthetic agent to a particular vaporizer. In addition, the existing dosing adapter generally has the problems of anesthetic liquid medicine residue and leakage in the dosing process, and the residual anesthetic is easy to injure medical care personnel.

Disclosure of Invention

The application provides an adapter of an anesthetic medicine bottle and an anesthetic evaporation device using the same, so that the anesthetic medicine bottle is compatible with different types of anesthetic medicine bottles.

In accordance with the above purposes, an embodiment of the present invention provides an adapter for an anesthetic vial for connecting the anesthetic vial to an anesthesia machine vaporizer, the adapter comprising a vial interface end and a vaporizer interface end;

the medicine bottle butt joint end is provided with a medicine bottle butt joint structure used for butt joint with a bottle mouth end of a medicine bottle, the medicine bottle butt joint structure is provided with a first fluid channel, a filling auxiliary piece used for opening a medicine bottle valve core in the bottle mouth end when the bottle mouth end is inserted into the medicine bottle butt joint end and a sealing structure, the first fluid channel is used for being communicated with the bottle mouth end, and the sealing structure is used for forming sealing with the outer peripheral surface of the bottle mouth end, so that when the filling auxiliary piece completely opens the medicine bottle valve core, the first fluid channel is in sealing communication with the medicine bottle;

the evaporator butt joint end is provided with an evaporator butt joint structure which is detachably butted with a drug adding port end of the evaporator, the evaporator butt joint structure is provided with a second fluid channel, the second fluid channel is communicated with the drug adding port end, and the first fluid channel is communicated with the second fluid channel in a sealing mode so that anesthetic in the drug bottle can flow into the drug adding port of the evaporator through the first fluid channel and the second fluid channel.

In one embodiment, the medicine bottle docking structure includes a first valve seat, a first valve core, and a first elastic return element, the first fluid channel is disposed on the first valve seat in a penetrating manner, the first valve core is disposed on the first valve seat in a manner that the first valve core can axially reciprocate along the first fluid channel, the sealing structure is disposed in the first valve core, the first valve core can be in sealing docking with the bottle mouth end through the sealing structure and integrally moves with the bottle mouth end to the first fluid channel, so that the bottle mouth end and the first fluid channel are kept in sealing docking during the integral movement, and the first elastic return element acts on the first valve core to drive the first valve core to return in a direction opposite to the side where the first valve seat is located.

In one embodiment, the sealing structure can form a seal with the mouth end when the mouth end is inserted into the medicine bottle abutting structure, and move integrally with the mouth end towards the first fluid channel, so that the mouth end and the first fluid channel are kept in sealing abutting joint in the process of integral movement.

In one embodiment, the filling aid comprises an abutting piece, and the abutting piece is located on a movement track of the bottle mouth end so as to open a medicine bottle valve core of the bottle mouth end when the bottle mouth end is inserted into the medicine bottle butt joint end.

In one embodiment, the medicine bottle butt-joint structure has an accommodating cavity for the insertion of the bottle mouth end, the accommodating cavity has an insertion opening, the accommodating cavity extends inwards from the insertion opening, the extending direction of the accommodating cavity is the insertion direction of the bottle mouth end, the accommodating cavity is communicated with the first fluid channel, and the filling auxiliary member is arranged in the first fluid channel or the accommodating cavity.

In one embodiment, the accommodating cavity is provided with an anti-rotation cavity, and the anti-rotation cavity is provided with an inner cavity wall matched with the outer wall of the bottle mouth end so as to prevent the bottle mouth end from rotating relative to the accommodating cavity.

In one embodiment, the vial interface has a locking member with a locking portion for locking the vial mouth end when the vial mouth end is moved in the insertion direction to the open state of the vial valve cartridge.

In one embodiment, the medicine bottle docking structure includes a first valve seat, a first valve core, and a first elastic restoring element, the first fluid channel is disposed on the first valve seat in a penetrating manner, the locking element includes a first sub-receiving cavity, the first valve core includes a second sub-receiving cavity penetrating in the same direction as the first sub-receiving cavity, the first sub-receiving cavity and the second sub-receiving cavity are communicated with each other and form at least a part of the receiving cavity, the locking element is connected to the first valve seat, the locking element is capable of rotating around the extending direction of the receiving cavity, the first valve core is movably disposed between the first valve seat and the locking element in a reciprocating manner along the insertion direction, the first elastic restoring element acts on the first valve core to drive the first valve core to restore to one side where the insertion port is located, the locking portion is an internal threaded portion disposed on an inner wall of the first sub-receiving cavity, the internal threaded portion is capable of cooperating with an external thread of the bottle port end, and drives the bottle and the first valve core to move towards the auxiliary bottle opening end by rotating the locking element.

In one embodiment, the sealing structure comprises a sealing element arranged on the inner wall of the second sub-accommodation cavity, and the sealing element is used for forming sealing fit with the outer wall of the bottle mouth end.

In one embodiment, the sealing element is located on the movement track of the bottle mouth end when inserted, and the position of the sealing element enables the sealing element to form a seal with the bottle mouth end before the filling auxiliary element opens the valve core of the medicine bottle.

In one embodiment, an annular concave portion is formed on an inner wall of the second sub-receiving cavity, and the sealing element is embedded in the annular concave portion.

In one embodiment, a protruding portion is arranged on the inner wall of the second sub-accommodating cavity, and the protruding portion forms a barrier in the insertion direction of the bottleneck end, so that the bottleneck end can push the first valve core to move together along the insertion direction.

In one embodiment, one end of the second sub-receiving cavity, which is butted with the first sub-receiving cavity, is provided with an anti-rotation cavity, the anti-rotation cavity is provided with an inner cavity wall matched with the outer wall of the bottleneck end, and the cross section of the inner cavity wall is non-circular, so that the bottleneck end is prevented from rotating relative to the second sub-receiving cavity.

In one embodiment, the outer side of the first valve seat is provided with a first clamping portion which surrounds the extension direction of the accommodating cavity, the locking member is provided with a second clamping portion matched with the first clamping portion, and the second clamping portion and the first clamping portion are clamped and can rotate relatively.

In one embodiment, the first valve core has a first position-limiting portion, the first valve seat has a second position-limiting portion engaged with the first position-limiting portion, and the first position-limiting portion and the second position-limiting portion form a position limitation in the peripheral direction of the first valve core, so as to prevent the first valve core from rotating relative to the first valve seat.

In one embodiment, the accommodating cavity and the second fluid channel are coaxially arranged.

In one embodiment, the first valve seat has a central convex column and an outer convex portion surrounding the central convex column, the first fluid passage is arranged on the central convex column in a penetrating manner along the axial direction of the central convex column, a movable cavity is formed between the outer convex portion and the central convex column, one end of the first valve core, which is deviated from the locking piece, is movably arranged in the movable cavity, and the second sub-accommodating cavity is communicated with the first fluid passage.

In one embodiment, the number of the abutting pieces is at least two, the abutting pieces protrude from different positions of the inner peripheral surface of the first fluid channel and converge towards the middle of the first fluid channel, and a gap is formed between every two adjacent abutting pieces.

In one embodiment, the evaporator docking structure has a self-sealing valve to cut off the conduction between the second fluid channel and the other channels through the self-sealing valve when the self-sealing valve is in a sealing state.

In one embodiment, the self-sealing valve has a second valve seat, a second valve core, and a second elastic return element, the second fluid channel is disposed through the second valve seat, the second elastic return element acts on the second valve core to drive the second valve core to seal the second fluid channel, and the second valve core is located in the second fluid channel, so that the second valve core can be opened by the top dosing element on the dosing port end.

In one embodiment, the vaporizer interface structure has a fastener that secures the second valve seat with the vial interface structure.

In accordance with the above purposes, one embodiment of the present application provides an adapter for an anesthetic vial for connecting the anesthetic vial to an anesthesia machine vaporizer, the adapter comprising a vial docking end and a vaporizer docking end;

the vial docking end having a vial docking structure for docking with a vial, the vial docking structure having a first fluid passage for communicating with the vial, a filling aid for opening a vial valve cartridge in the vial when the vial is inserted into the vial docking end, and a sealing structure for forming a seal with the vial such that the first fluid passage is in sealed communication with the vial when the filling aid fully opens the vial valve cartridge;

the sealing structure comprises a resilient mating member capable of forming a sealing fit with the vial when the vial is inserted into the vial butt end;

In one embodiment, the elastic fitting member has a receiving cavity for inserting the medicine bottle, the receiving cavity has an insertion opening, the receiving cavity extends inward from the insertion opening, the extending direction of the receiving cavity is the inserting direction of the medicine bottle, the receiving cavity is communicated with the first fluid channel, and the filling auxiliary member is disposed in the first fluid channel or the receiving cavity.

In one embodiment, the medicine bottle docking structure has a first valve seat, the first fluid channel is disposed on the first valve seat in a penetrating manner, and the elastic fitting member is connected with the first valve seat and can form a seal with the medicine bottle through interference fit.

In one embodiment, the resilient engagement element is fixedly connected to the first valve seat.

In one embodiment, at least a partial region of the accommodating cavity is an anti-rotation cavity, and the anti-rotation cavity is provided with an inner cavity wall matched with the outer wall of the medicine bottle so as to prevent the medicine bottle from rotating relative to the elastic matching piece.

In one embodiment, the filling aid comprises an abutting member, and the abutting member is located on a motion track of the medicine bottle to open a medicine bottle valve core of the medicine bottle when the medicine bottle is inserted into the medicine bottle butt end.

In one embodiment, the evaporator docking structure has a self-sealing valve, and the self-sealing valve cuts off the conduction between the second fluid channel and the other channels when the self-sealing valve is in a sealing state.

In view of the above, in one embodiment, the present application provides an anesthetic vaporizer, including a vaporizer for vaporizing anesthetic and an adapter as described in any of the above, the vaporizer has a drug inlet end having a drug feeding channel, and an evaporator butt structure of the adapter is in sealed butt joint with the drug inlet end so as to fill anesthetic into the vaporizer.

The adapter according to the above embodiments includes a vial interface end having a vial interface structure for interfacing with a vial mouth end of a vial, and an evaporator interface end for interfacing with certain vials having particular mouth designs. The butt joint end of the evaporator is provided with an evaporator butt joint structure for butt joint with the medicine inlet end of the evaporator. The medicine bottle butt joint structure is provided with a first fluid channel, a filling auxiliary piece and a sealing structure, the evaporator butt joint structure is provided with a second fluid channel, the first fluid channel is communicated with the second fluid channel in a sealing mode, and anesthetic in a medicine bottle which cannot be directly butted with the evaporator can be supplied into the evaporator through the adapter. Moreover, after the adapter is in butt joint with the medicine bottle, the valve core in the medicine bottle can be directly opened through the filling auxiliary piece, so that the medicine bottle is communicated with the adapter, a medicine bottle opening device does not need to be additionally arranged, additional operation is not needed, and convenience is improved. The sealing structure can ensure that the medicine bottle and the adapter form sealing butt joint firstly and then the medicine bottle is opened, so that the leakage of the medicine is avoided.

Drawings

FIG. 1 is a schematic view of an adapter, vial and vaporizer according to one embodiment of the present application;

FIGS. 2 and 3 are schematic views of an embodiment of the present application illustrating two different orientations of the adaptor;

FIG. 4 is a cross-sectional view of an adapter according to one embodiment of the present application;

FIG. 5 is a schematic view of a valve seat according to an embodiment of the present application;

FIG. 6 is a schematic structural diagram of a valve cartridge according to an embodiment of the present application;

FIG. 7 is a schematic view of a bottle mouth end of a vial according to an embodiment of the present application;

FIG. 8 is a schematic view of a vial mouth enclosure of a vial according to an embodiment of the present application;

FIG. 9 is a cross-sectional view of a bottle end structure according to an embodiment of the present application;

figure 10 is a cross-sectional view of a vial inserted into an adapter (with the mouth end unopened) according to one embodiment of the present application;

FIG. 11 is a cross-sectional view of a vial being inserted into the adapter (with the mouth end open and anesthetic flowing in the direction of the arrow) in one embodiment of the present application;

FIG. 12 is a schematic view of an anti-rotation structure between a bottle opening end structure and a valve core according to an embodiment of the present application;

FIG. 13 is a sectional view of a self-sealing valve of an adapter according to an embodiment of the present application;

FIG. 14 is a schematic cross-sectional view of an embodiment of the present application showing the docking structure of the evaporator docking end of the adapter and the evaporator (with the self-sealing valve in an open state);

fig. 15 is a schematic view of the flow of fluid out of the self-sealing valve (direction of anesthetic flow is shown by arrows) with the self-sealing valve in an open state according to an embodiment of the present application;

FIG. 16 is an exploded view of an adapter according to another embodiment of the present application;

FIG. 17 is a cross-sectional view of the adapter of FIG. 16;

fig. 18 is a cross-sectional view of the adapter of fig. 16 with the vial inserted into the adapter (with the vial-end unopened).

Detailed Description

The present invention will be described in further detail with reference to the following detailed description and accompanying drawings. Wherein like elements in different embodiments are numbered with like associated elements. In the following description, numerous specific details are set forth in order to provide a better understanding of the present application. However, those skilled in the art will readily recognize that some of the features may be omitted or replaced with other elements, materials, methods in different instances. In some instances, certain operations related to the present application have not been shown or described in detail in order to avoid obscuring the core of the present application from excessive description, and it is not necessary for those skilled in the art to describe these operations in detail, so that they may be fully understood from the description in the specification and the general knowledge in the art.

Furthermore, the described features, operations, or characteristics may be combined in any suitable manner to form various embodiments. Also, the various steps or actions in the method descriptions may be transposed or transposed in order, as will be apparent to one of ordinary skill in the art. Thus, the various sequences in the specification and drawings are for the purpose of describing certain embodiments only and are not intended to imply a required sequence unless otherwise indicated where such sequence must be followed.

The ordinal numbers used herein for the components, such as "first," "second," etc., are used merely to distinguish between the objects described, and do not have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings).

The embodiment provides an adapter of an anesthetic medicine bottle, which can meet the filling requirements of various evaporators by using special interfaces of medicine adding adapters carried by certain medicine bottles, and improves the use compatibility of the evaporators. Specifically, taking sevoflurane anesthetic as an example, the bottle mouth end of the sevoflurane anesthetic bottle is provided with a specially designed universal coding structure for identifying that the content of the bottle is sevoflurane anesthetic. The vaporizer corresponding to the use of sevoflurane should also have a special identification to make clear that the vaporizer is only used to receive sevoflurane drug. In a particular anesthetic vaporizer that uses sevoflurane as the anesthetic agent, the present embodiment may provide a special interface for the dosing adaptor that is dedicated to the sevoflurane anesthetic agent, such that a sevoflurane anesthetic agent vial may be connected to the corresponding vaporizer through the special interface, such that the anesthetic agent in the sevoflurane vial may enter the vaporizer through the special interface. The docking end of the drug bottle of the adapter provided by the embodiment is provided with a structure matched with a sevoflurane anesthetic drug bottle, so that the sevoflurane anesthetic drug bottle can be smoothly inserted into the docking end of the drug bottle. The evaporator butt end is provided with a structure matched with the evaporator using the sevoflurane anesthetic agent, so that the evaporator butt end of the adapter provided by the embodiment can be smoothly inserted into the evaporator. Other types of anesthetic agents, such as desflurane, anflurane, etc., may also have corresponding adaptor-specific interfaces described above, and the particular anesthetic drugs that the adaptor-specific interfaces described above can match are not particularly limited in this embodiment.

Referring to fig. 1-4 and 16-18, in one embodiment, the adapter 100 includes a vial interface 110 and a vaporizer interface 120. The vial docking end 110 has a vial docking structure for docking with the mouth end 210 of the vial 200. The vial interface has a first fluid passageway 111, the first fluid passageway 111 for communicating with the vial finish 210. Wherein the vial docking structure may be a docking structure designed for one or more vials 200 to accomplish the transfer of one or more vials 200 having a particular configuration. The vaporizer docking end 120 has a vaporizer docking structure for docking with the drug loading port end 310 of the vaporizer 300, the vaporizer docking structure having a second fluid channel 121, the second fluid channel 121 for communicating with the drug loading port end 310. The first fluid passage 111 is in sealed communication with the second fluid passage 121 for the passage of anesthetic agent. The first fluid channel 111 and the second fluid channel 121 may be formed by one or more members, respectively. The adapter 100 can supply anesthetic in the vial 200, which cannot be directly connected to the vaporizer 300, into the vaporizer 300, thereby improving convenience in adding anesthetic.

For some vials 200 or vaporizers 300 that do not have a self-sealing structure or that the user can switch the sealing structure to the open position alone, the adapter 100 itself may function only as a transfer conduit, creating a new fluid path between the vial 200 and the vaporizer 300 to transfer the anesthetic agent in the vial 200 to the vaporizer 300. In these embodiments, the adapter 100 may not be provided with a structure for opening the medicine container 200 or the vaporizer 300.

However, for safety reasons, conventional vials 200 are provided with a self-sealing structure, for example, referring to fig. 8 and 9 and fig. 17 and 18, some vials 200 have a vial valve core 213 at the mouth end 210, and the vial valve core 213 automatically seals the fluid passage at the mouth end 210 under the action of the elastic member. For such a vial 200, in one embodiment, the vial docking structure has a filling aid for opening the vial valve element 213 in the vial port 210 when the vial port 210 is inserted, the filling aid matches with the vial valve element 213 in the vial port 210, and the vial valve element 213 can be opened by, but not limited to, pushing, pulling, rotating, magnetic attraction, and the like. After the adaptor 100 is connected with the vial 200, the vial valve core 213 in the vial 200 can be directly opened by the filling aid, so that the vial 200 is communicated with the adaptor 100, and the vial opening device does not need to be arranged and operated additionally, thereby improving convenience.

In addition, in order to ensure the sealing effect and prevent the leakage of the anesthesia machine, in an embodiment of the present application, the medicine bottle docking structure further includes a sealing structure, which is configured to form a seal with the outer circumferential surface of the bottle opening end 210 before the filling auxiliary completely opens the medicine bottle valve element 213, so that the first fluid channel 111 is in sealed communication with the medicine bottle 200, and safety accidents caused by excessive leakage of the anesthetic are avoided. That is, the sealing structure forms a sealing engagement with the mouth end 210, and the filling aid can completely open the vial 200, thereby sealing the end of the adapter 100 from the outside when the vial is opened. It is specifically noted that the anesthetic vial adapter of the present embodiment may allow for minor leakage resulting from incomplete sealing during the initial opening of the vial, but such minor leakage is not continuous.

In one embodiment of a floating seal arrangement, the seal arrangement is capable of forming a seal with finish end 210 when finish end 210 is inserted into a vial interface and moves with finish end 210 toward first fluid passageway 111, i.e., without relative movement therebetween, such that finish end 210 sealingly interfaces with first fluid passageway 111. After the sealing engagement is formed, there is no relative movement between the sealing structure and the finish end 210, which can prevent the sealing structure from generating a reaction force on the finish end 210, and further increase the resistance of the finish end 210 to the movement of the first fluid channel 111.

Further, referring to fig. 2-11 and fig. 16-18, in one embodiment, the filling aid includes an abutting member 112, and the abutting member 112 is located on the movement track of the mouth end 210 to open the medicine bottle valve core 213 of the mouth end 210 when the mouth end 210 is inserted into the adaptor 100.

More specifically, referring to fig. 2-11 and 16-18, the vial interface also has a receiving cavity (e.g., 1132 and 1152 in fig. 4, 1192 in fig. 16-18) into which vial finish 210 is inserted. The accommodating cavity has an insertion opening 1131, the accommodating cavity extends inward from the insertion opening 1131, and the extending direction of the accommodating cavity is the insertion direction of the bottle opening end 210, that is, the track of the bottle opening end 210 inserted into the accommodating cavity can also be regarded as the extending track of the accommodating cavity. The accommodating cavity is communicated with the first fluid channel 111, and the abutting piece 112 is arranged in the first fluid channel 111 or the accommodating cavity.

The abutting member 112 is disposed on the movement locus of the medicine bottle valve core 213. The abutment 112 is fixedly arranged or at least limited to be immovable in the direction of insertion of the cartridge 213 of the vial, and the position of the abutment 112 is also to be clear of the protective structure (e.g. the bars 212 shown in fig. 7 and 8) at the mouth end 210, if necessary. During the process of inserting the mouth end 210 into the receiving cavity, the abutting piece 112 and the medicine bottle valve core 213 gradually approach each other, as shown in fig. 10, at this time, the abutting piece 112 and the medicine bottle valve core 213 are about to contact or already contact, but the medicine bottle valve core 213 is not pushed to switch to the open position. When the mouthpiece end 210 is inserted continuously, the abutting member 112 will block the advance of the cartridge 213 of the medicine bottle, so as to switch the cartridge 213 of the medicine bottle to the open position, and finally, as shown in fig. 11, the mouthpiece end 210 is opened (at this time, the mouthpiece end 210 is in the open state), and the anesthetic can flow into the first fluid channel 111 of the adaptor 100 according to the direction shown by the arrow in fig. 11, and then enter the second fluid channel 121, and finally enter the evaporator 300.

The advantage of providing the propping member 112 is that the medicine bottle 200 is normally in a sealed state, and the bottle mouth end 210 can be opened only when the medicine bottle 200 is inserted into the adaptor 100 at a predetermined position, thereby preventing the anesthetic in the medicine bottle 200 from leaking and improving safety. The propping member 112 may be any structure capable of propping against the vial valve core 213 and pushing the vial valve core 213 to move to the open position.

The propping element 112 may be disposed in the receiving cavity, the first fluid channel 111 (as shown in fig. 4, 10, 11, 16, and 18), or other positions, as long as it is ensured to push open the valve core 213 of the medicine bottle during the insertion of the bottle mouth end 210.

Relative movement of the top member 112 and the mouth end 210 may be ensured by means of a manual control or a mechanical transmission mechanism. In one embodiment, referring to fig. 2-11, the bottle docking structure has a locking member 113 to better ensure the pushing effect of the pushing member 112 on the bottle 200. The locker 113 has a locking portion for locking the mouth end 210 when the mouth end 210 is moved to the open state in the insertion direction. The locking of the mouth end 210 by the locking portion may include direct fastening to the mouth end 210, or may include indirect fastening to the mouth end 210 by fastening to other portions of the vial 200. The locking portion may be removably attached by, but not limited to, threading, snapping, bonding, etc. to lock finish 210.

In one embodiment, the retaining member 113 and the vial 200 may be provided with a snap, respectively, and the snap on the vial 200 may be provided at the mouth end 210 or elsewhere. When the mouth end 210 is moved to be in the open state, the locking member 113 and the buckle on the medicine bottle 200 are mutually clamped and matched, so that the fixation of the two is realized. In some embodiments, the latch may be designed as a self-disengaging latch that can disengage under some external force to facilitate disengagement of the snap fit. In some embodiments, an unlocking structure, such as a button, a dial, or other unlocking member, may be provided for the snap fit to manually open the snap fit. Of course, other means may be employed to unlock the snap fit to separate the vial 200 from the adapter 100.

Further, in another embodiment, the locking member 113 is threadably secured to the vial 200. Referring to fig. 2-11, the vial docking structure has a first valve seat 114, a first valve core 115, and a first elastic return member 116 (the elastic member can be any member with elastic deformation and return capability, such as a spring, a spring plate, a rubber pad, etc.). The first fluid passage 111 is provided through the first valve seat 114. The locking member 113 has a first sub receiving chamber 1132 therethrough, and the first valve body 115 has a second sub receiving chamber 1151 which is penetrated in the same direction as the first sub receiving chamber 1132. The first sub-receiving chamber 1132 and the second sub-receiving chamber 1151 are illustrated as being axially communicated with the first valve element 115 and the locking member 113, but this is not absolute, and the communication direction of the first sub-receiving chamber 1132 and the second sub-receiving chamber 1151 may be in other directions. The first sub-receiving cavity 1132 and the second sub-receiving cavity 1151 are communicated to form at least a part of receiving cavity, that is, the receiving cavity may be formed by only communicating the first sub-receiving cavity 1132 and the second sub-receiving cavity 1151, or may be formed by enclosing the first sub-receiving cavity 1132 and the second sub-receiving cavity 1151 together with the cavities of other components. The first sub-receiving cavity 1132 is located outside the second sub-receiving cavity 1151, and the insertion port 1131 is shown located on the first sub-receiving cavity 1132, that is, the bottleneck end 210 enters the first sub-receiving cavity 1132 first and then enters the second sub-receiving cavity 1151. In other embodiments, other components may be disposed outside the locking member 113, and these components may also be used to form the receiving cavity, and the insert opening 1131 may also be disposed on these components.

The locking member 113 is connected to the first valve seat 114, and the connection is a movable connection. In one embodiment, the retaining member 113 is restricted from moving in the extending direction of the receiving cavity, i.e. cannot move along the extending direction of the receiving cavity (the insertion direction of the mouth end 210) relative to the first valve seat 114, so as to ensure that the retaining member 113 cannot move along with the mouth end 210 toward the inside of the adaptor 100. However, the locking member 113 can rotate around the extending direction of the receiving cavity, the locking portion is an internal thread portion disposed on the inner wall of the first sub-receiving cavity 1132, and the internal thread portion can be matched with the external thread 215 of the bottle opening end 210, so as to drive the bottle opening end 210 and the first valve core 115 to move towards the abutting member 112 by rotating the locking member 113, so that the abutting member 112 abuts against the medicine bottle valve core 213 of the bottle opening end 210. The first valve core 115 is movably disposed between the first valve seat 114 and the locking member 113 in a manner of reciprocating along the insertion direction, and the first return elastic element 116 acts on the first valve core 115 to drive the first valve core 115 to return to the side of the insertion port 1131, that is, when the external force is not applied to the mouthpiece end 210, the first return elastic element 116 drives the first valve core 115 to maintain the position close to the insertion port 1131, so as to be conveniently abutted to the mouthpiece end 210 which is just inserted. Of course, the locking member 113 is not necessarily limited in the insertion direction, and in other embodiments, the locking member 113 may have a certain movement space in the insertion direction, for example, the locking member 113 may be limited to move along with the mouth end 210 along the insertion direction for a certain distance, and then the locking member 113 is screwed with the mouth end 210. This design provides some adjustment space for retaining member 113 in the insertion direction, allowing retaining member 113 to more flexibly interface with finish end 210.

The first valve spool 115 and the finish end 210 are interlocked together in the direction of insertion. Referring to fig. 10 and 11, in one embodiment, the inner wall of the second sub-receiving cavity 1151 is provided with a protrusion 1154, and the protrusion 1154 forms a stop in the insertion direction of the mouthpiece end 210, so that the mouthpiece end 210 can push the first valve core 115 to move inwards along with the insertion direction. The barrier may be a direct barrier (direct contact with finish 210) or an indirect barrier (barrier to movement of finish 210, such as seal 117, by other means). After the mouth end 210 is removed from the accommodating cavity, the first valve core 115 is reset to the previous position by the first reset elastic member 116, and waits for the next insertion of the mouth end 210.

Referring to fig. 10 and 11, after the mouth end 210 is inserted into the receiving cavity, the locking member 113 is rotated to move the mouth end 210 further into the receiving cavity until the abutting member 112 contacts and opens the cartridge core 213 of the vial, but the locking member 113 has a constant or short axial position relative to the first valve seat 114. The screw thread structure on the present medicine bottle 200 of adaptation that this floating structure can be fine need not to carry out other upgrading and improvement to medicine bottle 200 again, the current medicine bottle 200 structure of compatible that can relax.

Further, to ensure sealing and prevent leakage of anesthetic, referring to fig. 4, 10 and 11, in one embodiment, the inner wall of the secondary sub-receiving chamber 1151 is provided with a sealing member 117 for forming a sealing structure with the outer wall of the bottle mouth end 210. Specifically, the inner wall of the second sub-receiving cavity 1151 is provided with an annular concave portion, and the sealing member 117 is embedded in the annular concave portion. Of course, the sealing member 117 may be disposed in the second sub-receiving cavity 1151 in other forms, for example, the sealing member 117 may be integrated with the cavity wall of the second sub-receiving cavity 1151. The seal 117 forms a tight contact and good seal with the outer wall of the finish 210 by being crushed.

In this embodiment, the sealing element 117, the first valve core 115 and the mouth end 210 move together to the position of the abutting element 112, and there is no relative movement between the sealing element 117 and the mouth end 210, so that the sealing element 117 can be prevented from generating a reaction force on the mouth end 210, and the resistance of the mouth end 210 to the movement of the abutting element 112 can be increased.

Of course, if the resistance is within an acceptable range, in some embodiments, the sealing member 117 may be configured to be fixed, for example, in the first sub-receiving cavity 1132 of the locking member 113, or the valve core may be configured to be fixed and not move with the bottleneck end 210, or the sealing member 117 may be configured to be disposed on other components. At this time, when the mouth end 210 moves toward the abutting member 112, the sealing member 117 and the mouth end 210 relatively move and maintain a close fit state, so as to achieve sealing.

Referring to fig. 10 and 11, in one embodiment, the sealing member 117 is located on the moving track of the bottle mouth end 210 when inserted, and the sealing member 117 is located to form a seal with the bottle mouth end 210 before the filling aid (e.g., the abutting member 112) opens the medicine bottle valve core 213. For example, in fig. 10 and 11, upon insertion of the mouth end 210, the protrusion on the outer periphery thereof will contact and sealingly press against the sealing member 117 to form a seal, and then contact the abutment member 112, sealing the end of the adapter 100 from the outside prior to opening the vial 200.

Further, as mentioned above, the propping element 112 may be disposed in the receiving cavity, in the first fluid channel 111, or in other positions. Referring to fig. 4-11, in one embodiment, the at least two abutting members 112 are disposed in the first fluid passage 111, and may be integrally formed or fixedly connected with the first valve seat 114. Referring to fig. 5, in an embodiment, the abutting members 112 protrude from different positions of the inner circumferential surface of the first fluid channel 111, and converge toward the middle of the first fluid channel 111, and a gap is formed between adjacent abutting members 112. This configuration is primarily intended to mate with the finish enclosure configuration 211 shown in FIGS. 7 and 8. The finish housing structure 211 has a plurality of generally radially extending ribs 212, a flow path at the finish end 210 is disposed below the ribs 212, and a vial valve insert 213 is disposed within the flow path. The stop strip 212 prevents the vial valve element 213 from being accidentally touched to open at an unintended time. Therefore, in the present embodiment, the propping element 112 is configured in a manner capable of matching with the barrier rib 212, when the bottle mouth end 210 is pushed, the propping element 112 passes through the gap 214 between adjacent barrier ribs 212, and the barrier rib 212 is just located in the gap between adjacent propping elements 112, so that the propping element 112 can prop against the medicine bottle valve core 213 under the barrier rib 212.

Further, when the locking member 113 is screwed with the bottle mouth end 210, in order to prevent the bottle mouth end 210 from rotating along with the locking member 113 and being unable to move continuously towards the inside of the accommodating cavity, some rotation-preventing structures may be provided to prevent the rotation of the bottle mouth end 210. Referring to fig. 5 and 12, in one embodiment, the second sub-receiving cavity 1151 and the first sub-receiving cavity 1132 have an anti-rotation cavity 1152 at an end thereof abutting against each other, and the anti-rotation cavity 1152 has an inner cavity wall matching with an outer wall of the mouth end 210, for example, a cross section (a cross section perpendicular to an axis of the anti-rotation cavity 1152) is non-circular, so as to prevent the mouth end 210 from rotating relative to the second sub-receiving cavity 1151. For example, in FIGS. 5 and 12, the outer wall of the finish 210 has a polygonal configuration in cross-section, and thus the inner cavity wall of the anti-rotation cavity 1152 also has an irregular polygonal or regular polygonal configuration in cross-section, shown as decagon. Of course, the inner chamber wall of the anti-rotation cavity 1152 can take other shapes depending on the cross-section of the outer wall of the finish 210 that mates with the anti-rotation cavity. Of course, in other embodiments, the rotation prevention can also be realized by a concave-convex fit (a structure of the rotation prevention protrusion and the rotation prevention groove) on the outer circumferential surface of the bottle mouth end 210.

Further, in order to prevent the first valve core 115 from rotating relative to the second valve core, in one embodiment, the first valve core 115 has a first position-limiting portion, the first valve seat 114 has a second position-limiting portion engaged with the first position-limiting portion, and the first position-limiting portion and the second position-limiting portion form a position limitation in the peripheral direction of the first valve core 115, so as to prevent the first valve core 115 from rotating relative to the first valve seat 114.

This spacing portion of first portion and second can adopt unsmooth cooperation to realize preventing changeing, also can adopt the structure of the above-mentioned chamber 1152 that prevents changeing to realize preventing changeing. Referring to fig. 4-6, in one embodiment, the first valve element 115 is provided with an anti-rotation protrusion 1153 (which may be an additional anti-rotation groove or an alternative anti-rotation groove) on the outer periphery thereof, and the first valve seat 114 is provided with an anti-rotation groove 1145 (which may be an additional anti-rotation protrusion or an alternative anti-rotation groove) thereon, which are engaged with each other to ensure that the first valve element 115 cannot rotate in the outer peripheral direction relative to the first valve seat 114. Moreover, the anti-rotation groove 1145 (or anti-rotation protrusion) of the first valve seat 114 may also be disposed along the insertion direction of the bottle mouth end 210, such as along the axial direction, so as to also play a role of guiding the first valve core 115 when the bottle mouth end 210 is inserted.

Further, locking member 113 is rotatable but immovable between itself and first valve seat 114 in the direction of insertion of finish end 210. In order to achieve the connection effect, in an embodiment, please refer to fig. 4, a circle of first clamping portions 1146 is disposed around the extending direction of the accommodating cavity outside the first valve seat 114, the locking member 113 has second clamping portions 1133 matched with the first clamping portions 1146, and the second clamping portions 1133 and the first clamping portions 1146 are clamped and can rotate relatively.

As shown in fig. 4, the first clip portion 1146 has a clip cavity, and one end of the clip cavity is open. The side wall of the clamping cavity is provided with a clamping protrusion 1147, and the clamping protrusion 1147 is matched with the clamping protrusion 1134 on the second clamping portion 1133 to form clamping. For the convenience of clamping, the clamping

protrusions

1147 and 1134 of the first clamping portion 1146 and the second clamping portion 1133 have inclined guide surfaces, so that the second clamping portion 1133 can be clamped into the clamping cavity more easily.

Further, in a more specific embodiment, a more specific structure of first valve seat 114 is shown, and referring to fig. 2-6, first valve seat 114 has a central post 1141 and an outer boss 1143 disposed around central post 1141. First fluid passage 111 is disposed on central post 1141 in axial communication with central post 1141. The outer protruding portion 1143 is a ring structure, and a movable cavity is formed between the outer protruding portion 1143 and the central protruding pillar 1141. The first valve core 115 is of an annular structure, one end of the first valve core 115, which is away from the locking member 113, is movably arranged in the movable cavity and sleeved outside the central convex column 1141, and the first valve core 115 and the central convex column 1141 can be sealed through the elastic member 118. The second sub-receiving chamber 1151 communicates with the first fluid passage 111.

The first elastic restoring element 116 may be disposed in the movable cavity, one end of the first elastic restoring element 116 abuts against the first valve seat 114, and the other end abuts against the first valve core 115, so as to push the first valve core 115 to restore. Of course, the first return elastic member 116 is not limited to this structure, and may directly or indirectly act on the first valve spool 115 as long as it can push the first valve spool 115 to return.

Referring to fig. 4 and 5, in the structure of the first valve seat 114, the first engaging portion 1146 may also be an annular structure located outside the outer protrusion 1143, and correspondingly, the locking member 113 surrounds the outer periphery of the first valve element 115 in an annular shape and is engaged and fixed with the first engaging portion 1146. In this structure, the first valve seat 114 may serve as a main supporting structure, and the first valve spool 115, the locking member 113, and the evaporator docking structure may be mounted together on the first valve seat 114.

Referring to fig. 16-18, another vial interface is provided in one embodiment of the present application. In this embodiment, the sealing structure in the vial interface includes a resilient engagement member 119. The receiving cavity 1192 is disposed on the elastic fitting 119, and the elastic fitting 119 can form a seal with the mouth end 210 when the mouth end 210 is inserted into the receiving cavity 1192. The flexible fitting element 119 may be made of a flexible material partially or entirely, for example, at least a portion forming the receiving cavity 1192 is made of a flexible material, so that when the mouth end 210 of the vial is inserted, the flexible fitting element 119 can form an interference sealing fit with an outer peripheral surface of the mouth end 210, and can also fix the vial 200 to a certain extent.

The elastic fitting 119 is connected to other components, such as the first valve seat 114, and the like, and the connection may be a fixed connection or a movable connection having a certain moving space. This articulation is provided to ensure that the mouth end 210 extends into the position of the filling aid (e.g., the top abutment 112) to open the cartridge of the vial within the mouth end 210.

In fig. 16-18, the first fluid channel 111 is disposed through the first valve seat 114, the resilient fitting 119 is connected to the first valve seat 114, and the resilient fitting 119 can form a seal with the mouth end 210 or the body of the vial by interference fit. Further, this embodiment is not limited to this, and the elastic fitting 119 can be fitted to a part or all of the mouth and body of the medicine bottle to form a sealing fit with the valve core of the medicine bottle before the valve core is opened. The elastic fitting 119 and the first valve seat 114 can be fixedly connected in a clamping manner, an adhering manner, a welding manner, or the like, which may be detachable or non-detachable. Of course, as mentioned above, the fixed connection can be replaced by a movable connection with a certain moving space.

Specifically, referring to fig. 16-18, in one embodiment, the resilient fitting 119 has a first fitting portion protruding toward the first valve seat 114, and the first fitting portion may be a ring-shaped protrusion 1191, or several protrusions distributed around the axis of the resilient fitting 119, or other similar structures. The first valve seat 114 correspondingly has a second matching portion, which may also be a ring of annular protrusions 1148, a plurality of protrusions distributed around the axial center of the first valve seat 114, and other similar structures, and in the illustrated embodiment, the first matching portion and the second matching portion are fastened to facilitate detachment and replacement.

In some embodiments, the structure of the first and second matching portions can refer to the structure of the first and

second clip portions

1146 and 1133.

Similarly, to prevent the bezel end 210 from rotating relative to the resilient fitting 119, referring to fig. 16, in one embodiment, the receiving cavity 1192 is at least partially defined as an anti-rotation cavity having an inner cavity wall matching the outer wall of the bezel end 210. For example, in fig. 16, the cross-section of the outer wall of the bottleneck end 210 is a polygonal structure, so the cross-section of the inner cavity wall of the anti-rotation cavity is also a polygonal structure. Of course, the inner cavity wall of the anti-rotation cavity may take other shapes, which is determined based on the cross-section of the outer wall of the bottleneck end 210. Of course, in other embodiments, the rotation prevention can also be realized by a concave-convex fit (a structure of the rotation prevention protrusion and the rotation prevention groove) on the outer circumferential surface of the bottle mouth end 210.

Further, fig. 1-4 and 16-18 show a solution in which the receiving chamber is coaxially arranged with the second fluid channel 121, and the first fluid channel 111 is also coaxially arranged with the second fluid channel 121. However, in other embodiments, the first fluid channel 111 and the second fluid channel 121 may be disposed at an angle, such as perpendicular to each other. Further, in other embodiments, the extending direction of the accommodating cavity and the first fluid channel 111 may also be disposed at an angle, for example, perpendicularly intersecting.

Further, the docking end 120 of the evaporator 300 is adapted to dock with the evaporator 300. Wherein the vaporizer docking structure may be provided with a sealing structure to form a seal within the adapter 100 to prevent leakage of anesthetic agent. In one embodiment, the evaporator docking structure has a self-sealing valve. The self-sealing valve keeps self-sealing under normal conditions, and anesthetic leakage is avoided. The self-sealing valve can be opened by hand or other means (e.g., a dosing tip 311 at the dosing end of the vaporizer) to release anesthetic that has entered the adapter 100.

In a specific use scenario, when the anesthetic in the medicine bottle is not used up, the self-sealing valve can realize sealing after the medicine bottle is separated from the evaporator together with the adapter, so as to ensure that the unused anesthetic cannot leak.

Referring to fig. 2, 3, 4, and 13 and fig. 16-18, the self-sealing valve has a second valve seat 122, a second valve spool 123, and a second return resilient member 125. The second fluid passage 121 is formed through the second valve seat 122, and the second return elastic member 125 acts on the second valve body 123 to drive the second valve body 123 to seal the second fluid passage 121. In the state shown in fig. 4, the second valve element 123 seals the second fluid channel 121, and the second fluid channel 121 is not communicated with other spaces through the self-sealing valve at this time; in the state shown in fig. 13, the second spool 123 opens the second fluid passage 121. The end of the second fluid passage 121 for communication with the inlet end 310 opens into the second spool 123 so that the second spool 123 can be opened by hand or other means.

Referring to fig. 13, a stopper 126 is disposed in the second fluid passage 121 of the second valve seat 122, and the second valve spool 123 is disposed on the stopper 126 in a penetrating manner, and a gap is left between the stopper 126 and the second valve spool for allowing the fluid to pass through. One end of the second return elastic member 125 abuts against the stopper 126, and the other end abuts against the second valve element 123, so as to drive the second valve element 123 to return and seal the second fluid passage 121.

In one embodiment, considering that the applicator tip 311 is usually disposed at the inlet end 310 of the vaporizer 300, the applicator tip 311 is used to open the self-sealing valve skillfully in this embodiment, and the adaptor 100 can be butted against the inlet end 310 without additional operations.

Specifically, referring to fig. 13-15, when the second valve seat 122 extends into the dosing channel of the dosing port end 310, the dosing top 311 in the dosing port end 310 extends into the second fluid channel 121, and as the length of the adaptor 100 inserted into the dosing port end 310 increases, the dosing top 311 gradually moves to the position of the second valve spool 123, and pushes the second valve spool 123 to move toward the second valve seat 122, so that the second valve spool 123 is separated from the sealing surface on the second valve seat 122, and the second fluid channel 121 is opened.

The entire vaporizer docking structure is fixedly coupled to the vial docking structure, wherein, referring to fig. 13 and 16-18, in one embodiment, both are primarily achieved by the fixed coupling of the second valve seat 122 and the first valve seat 114. Specifically, the second valve seat 122 protrudes into the first valve seat 114, and a second sealing member 127 may be disposed at the joint of the second valve seat 122 and the first valve seat 114 to prevent the anesthetic from leaking out of the gap between the second valve seat 122 and the first valve seat 114.

The second valve seat 122 and the first valve seat 114 can be fixed by self-fitting, for example, by screwing, snapping, adhering, welding, etc. Of course, other means may be used to press the second valve seat 122 against the first valve seat 114. For example, referring to fig. 1-4 and 16-18, the vaporizer interface has a fastener 124, and the fastener 124 secures the second valve seat 122 to the vial interface. The fastener 124 may be a cylindrical structure that captures the second valve seat 122 against the first valve seat 114. Wherein the fastener 124 has a through hole in the middle, and one end of the second valve seat 122 protrudes from the through hole to be abutted against the evaporator 300. Additional seals may be provided between the fastener 124 and the second valve seat 122 to provide a seal. However, due to the presence of the second seal 127, no seal may be provided between the fastener 124 and the second valve seat 122. Of course, the fastener 124 may have other shapes.

The fastener 124 may also be secured to the first valve seat 114 by a threaded connection, snap fit, adhesive, welding, or the like. Referring to fig. 4 and 16-18, in one embodiment, the fastener 124 is disposed around the first valve seat 114 and is fixed to the first valve seat 114 by a snap-fit or threaded connection.

In a preferred embodiment, a linkage mechanism, such as a linkage rod or a linkage assembly, is further disposed between the first valve core 115 and the second valve core 123 in the above embodiment, and the linkage mechanism can make the first valve core 115 and the second valve core 123 co-operate in the same direction during the process of communicating the medicine bottle 200 with the vaporizer 300 through the adapter 100, so that the second valve core 123 can communicate with the vaporizer 300 while the medicine bottle valve core 213 is opened. When closing, the first valve element 115 and the second valve element 123 may be closed synchronously, or may be closed sequentially, for example, the first valve element 115 is closed first, and then the second valve element 123 is closed, or vice versa.

The above embodiments provide various adapters 100, which can convert the special interface of the drug adding adapter of the drug bottle 200 into a universal interface, so as to meet the perfusion requirements of various evaporators 300 and improve the compatibility of the evaporators 300.

In another aspect, the present embodiment further provides an anesthetic vaporizing apparatus including a vaporizer 300 for vaporizing an anesthetic agent and an adapter 100 as described in any of the above embodiments. The vaporizer 300 has a drug inlet end 310, the drug inlet end 310 has a drug feeding channel, and the vaporizer docking structure of the adaptor 100 is in sealed docking with the drug inlet end 310 so as to fill the anesthetic agent into the vaporizer 300. The anesthetic vaporizing device is compatible with a variety of anesthetic vials 200, and the vaporizer 300 can communicate directly with the vial 200 when a conventional vial 200 is used. When the vial 200 is an unconventional vial 200, the vial 200 can be connected to an adapter 100 that can be mated with the unconventional vial 200, and anesthetic can be supplied through the unconventional vial 200.

The present invention has been described in terms of specific examples, which are provided to aid understanding of the invention and are not intended to be limiting. For a person skilled in the art to which the invention pertains, several simple deductions, modifications or substitutions may be made according to the idea of the invention.

Claims

1. An adapter for an anesthetic vial for connecting the anesthetic vial to an anesthesia machine vaporizer, said adapter comprising a vial docking end and a vaporizer docking end;

the medicine bottle butt joint end is provided with a medicine bottle butt joint structure used for butt joint with a bottle mouth end of a medicine bottle, the medicine bottle butt joint structure is provided with a first fluid channel, a filling auxiliary part used for opening a medicine bottle valve core in the bottle mouth end when the bottle mouth end is inserted into the medicine bottle butt joint end and a sealing structure, the first fluid channel is used for being communicated with the bottle mouth end, and the sealing structure is used for forming sealing with the outer peripheral surface of the bottle mouth end, so that when the filling auxiliary part completely opens the medicine bottle valve core, the first fluid channel is communicated with the medicine bottle in a sealing mode;

2. The adapter according to claim 1, wherein the vial abutment structure has a first valve seat, a first valve element and a first resilient return element, the first fluid passage is disposed through the first valve seat, the first valve element is disposed on the first valve seat in such a manner as to be axially reciprocable along the first fluid passage, the sealing structure is disposed in the first valve element, the first valve element can be brought into sealing abutment with the mouth end through the sealing structure and moves integrally with the mouth end toward the first fluid passage so that the mouth end and the first fluid passage are kept in sealing abutment during the integral movement, and the first resilient return element acts on the first valve element to drive the first valve element to return in a direction opposite to a side where the first valve seat is located.

3. The adapter of claim 1 wherein said sealing structure is capable of forming a seal with said mouth end when said mouth end is inserted into said vial docking structure and moves integrally with said mouth end toward said first fluid passageway to maintain said mouth end in sealing engagement with said first fluid passageway during said integral movement.

4. The adapter of any of claims 1-3 wherein the filling aid comprises an abutment located on a path of movement of the finish end to open a drug vial valve cartridge at the finish end when the finish end is inserted into the drug vial interface end.

5. The adapter of any of claims 1-4, wherein the vial docking structure has a receiving cavity into which the vial mouth end is inserted, the receiving cavity having an insertion opening, the receiving cavity extending inwardly from the insertion opening, the receiving cavity extending in a direction of insertion of the vial mouth end, the receiving cavity communicating with the first fluid channel, the filling aid being disposed in the first fluid channel or the receiving cavity.

6. The adapter of claim 5 wherein the receiving cavity has an anti-rotation cavity having an interior cavity wall that mates with an exterior wall of the mouth end to prevent rotation of the mouth end relative to the receiving cavity.

7. The adapter of claim 5 or 6 wherein the vial interface has a locking member having a locking portion for locking the vial mouth end when the vial mouth end is moved in the insertion direction to a vial valve cartridge open position.

8. The adaptor according to claim 7, wherein the vial docking structure has a first valve seat, a first valve plug, and a first resilient return element, the first fluid channel is disposed on the first valve seat, the locking element has a first sub-receiving cavity extending therethrough, the first valve plug has a second sub-receiving cavity extending through the first sub-receiving cavity in the same direction, the first sub-receiving cavity and the second sub-receiving cavity are connected to form at least a part of the receiving cavity, the locking element is connected to the first valve seat, the locking element is rotatable in the extending direction of the receiving cavity, the first valve plug is movably disposed between the first valve seat and the locking element in a manner of being capable of reciprocating in the inserting direction, the first resilient return element acts on the first valve plug to drive the first valve plug to return to the side where the insertion port is located, the locking element is an internal threaded portion disposed on the inner wall of the first sub-receiving cavity, the internal threaded portion is capable of cooperating with the external threaded portion of the vial to drive the vial and the first valve plug to move the external threaded portion to the vial-opening end to assist the vial-opening end by rotating the locking element.

9. The adapter of claim 8, wherein said sealing structure includes a sealing member disposed on an inner wall of said second sub-receiving cavity for sealing engagement with an outer wall of said finish end.

10. The adapter of claim 9 wherein said seal is located on the path of movement of said finish end as it is inserted and is positioned to form a seal with said finish end before said filling aid opens said vial valve element.

11. The adapter according to claim 9 or 10, wherein the inner wall of the second sub-receiving cavity is provided with an annular inner recess, and the sealing member is embedded in the annular inner recess.

12. The adapter according to any one of claims 8-11, wherein the inner wall of the second sub-receiving cavity is provided with a protrusion, and the protrusion forms a stop in the insertion direction of the mouth end, so that the mouth end can push the first valve core to move together along the insertion direction.

13. The adapter of any of claims 8-12, wherein the second sub-receiving cavity has an anti-rotation cavity at an end that interfaces with the first sub-receiving cavity, the anti-rotation cavity having an inner cavity wall that mates with an outer wall of the mouth end, the inner cavity wall having a non-circular cross-section to prevent rotation of the mouth end relative to the second sub-receiving cavity.

14. The adapter according to any one of claims 8-13, wherein the outer side of the first valve seat has a ring of first engaging portions disposed around the extending direction of the receiving cavity, the locking member has a second engaging portion engaged with the first engaging portion, and the second engaging portion is engaged with the first engaging portion and can rotate relatively.

15. The adapter according to any one of claims 8 to 14, wherein the first valve body has a first stopper portion, the first valve seat has a second stopper portion engaged with the first stopper portion, and the first stopper portion and the second stopper portion form a stopper in a circumferential direction of the first valve body to prevent the first valve body from rotating relative to the first valve seat.

16. The adapter of any of claims 8-15 wherein the receiving cavity is disposed coaxially with the second fluid passage.

17. The adapter of claim 16 wherein said first valve seat has a central boss and an outer protrusion surrounding said central boss, said first fluid passage is disposed on said central boss axially through said central boss, a movable chamber is formed between said outer protrusion and said central boss, an end of said first valve element facing away from said locking member is movably disposed in said movable chamber, and said second sub-receiving chamber is in communication with said first fluid passage.

18. The adapter according to any one of claims 4 to 17, wherein the abutting members are at least two, protrude from different positions of the inner peripheral surface of the first fluid passage, converge toward the middle of the first fluid passage, and have a gap between adjacent abutting members.

19. The adapter of any of claims 1-18, wherein the evaporator docking structure has a self-sealing valve to shut off communication of the second fluid passage with other passages through the self-sealing valve when the self-sealing valve is in a sealed state.

20. The adaptor of claim 19, wherein the self-sealing valve has a second valve seat, a second valve spool, and a second return resilient member, the second fluid passage is disposed through the second valve seat, the second return resilient member acts on the second valve spool to drive the second valve spool to seal the second fluid passage, and the second valve spool is disposed in the second fluid passage so that the second valve spool can be opened by the top dosing member on the dosing port end.

21. The adapter of claim 20 wherein said vaporizer interface structure has a fastener that secures said second valve seat with said vial interface structure.

22. An adapter for an anesthetic vial for connecting the anesthetic vial to an anesthesia machine vaporizer, said adapter comprising a vial interface end and a vaporizer interface end;

23. The adapter of claim 22 wherein said resilient mating element has a receiving cavity into which said vial is inserted, said receiving cavity having an insertion opening, said receiving cavity extending inwardly from said insertion opening in a direction of insertion of said vial, said receiving cavity communicating with the first fluid passageway, said filling aid being disposed in said first fluid passageway or said receiving cavity.

24. The adapter of claim 23 wherein said receiving cavity is disposed coaxially with said second fluid passageway.

25. The adapter of any of claims 23-24, wherein the vial interface has a first valve seat, the first fluid channel is disposed through the first valve seat, and the resilient engagement member is coupled to the first valve seat, the resilient engagement member being capable of forming a seal with the vial by an interference fit.

26. The adapter of claim 25 wherein said resilient engagement element is fixedly attached to said first valve seat.

27. The adapter of any of claims 23-26, wherein the receiving cavity is at least partially an anti-rotation cavity having an inner cavity wall that mates with an outer wall of the vial to prevent rotation of the vial with respect to the resilient mating member.

28. The adapter of any of claims 22-27 wherein the priming assist comprises an abutment located on the path of motion of the vial to open the vial valve of the vial when the vial is inserted into the vial-docking end.

29. The adapter of claim 28, wherein the at least two abutting members protrude from different positions of the inner circumferential surface of the first fluid passage and converge toward the middle of the first fluid passage, and a gap is formed between adjacent abutting members.

30. The adapter of any of claims 22-29, wherein the evaporator docking structure has a self-sealing valve that, when in a sealed state, shuts off the second fluid channel from the other channels.

31. The adaptor of claim 30, wherein the self-sealing valve has a second valve seat, a second valve spool, and a second return resilient member, the second fluid passage is disposed through the second valve seat, the second return resilient member acts on the second valve spool to drive the second valve spool to seal the second fluid passage, and the second valve spool is disposed in the second fluid passage so that the second valve spool can be opened by the top-dosing member on the dosing port end.

32. An anesthetic evaporation device, comprising an evaporator for evaporating anesthetic agent and an adapter according to any of claims 1-31, said evaporator having a dosing port end with a dosing channel, an evaporator docking structure of said adapter being in sealing docking with said dosing port end for filling said evaporator with anesthetic agent.