技术领域technical field
本发明涉及一种给药装置。The present invention relates to a drug delivery device.
背景技术Background technique
现有技术中，利用注射器作为给药装置向待需实施手术的部位注射麻醉剂，具体操作为：将注射器的针头伸入至相应位置的人体组织内，利用手指进行推送麻醉剂。In the prior art, a syringe is used as a drug delivery device to inject anesthesia into the site to be operated. The specific operation is as follows: the needle of the syringe is inserted into the human tissue at the corresponding position, and the anesthetic is pushed with fingers.
现有技术中的上述注射麻醉剂的方式存在如下缺陷：The above-mentioned mode of injecting anesthetics in the prior art has the following defects:
1、从针头流出的麻醉剂的流量不均匀，其原因在于该流量决定于人手所施加力的大小，例如，当人手施加的推送力不均匀时，从针头流出的麻醉剂的流量便不均匀。1. The flow rate of the anesthetic agent flowing out of the needle is not uniform. The reason is that the flow rate is determined by the force applied by the human hand. For example, when the pushing force exerted by the human hand is uneven, the flow rate of the anesthetic agent flowing out of the needle will be uneven.
2、针头仅有一个出口，使得麻醉剂仅能够该出口流出，而当需要麻醉的区域很大时，需要进行多次且不同位置的注射。2. The needle has only one outlet, so that the anesthetic agent can only flow out from this outlet, and when the area to be anesthetized is large, multiple injections at different positions are required.
发明内容SUMMARY OF THE INVENTION
针对现有技术中存在的上述技术问题，本发明的实施例提供了一种用于麻醉剂的给药装置。In view of the above technical problems existing in the prior art, embodiments of the present invention provide a drug delivery device for anesthetics.
为解决上述技术问题，本发明的实施例采用的技术方案是：In order to solve the above-mentioned technical problems, the technical solutions adopted in the embodiments of the present invention are:
一种用于麻醉剂的给药装置，包括：A delivery device for an anesthetic, comprising:
注射筒；Syringe;
活塞，其设置于所述注射筒中，并能够在所述注射筒中滑动；a piston disposed in the syringe barrel and capable of sliding in the syringe barrel;
活塞杆，其伸入至所述注射筒中，借由推拉所述活塞杆的尾部而使所述活塞在所述注射筒中滑动；a piston rod, which extends into the syringe, and causes the piston to slide in the syringe by pushing and pulling the tail of the piston rod;
注射针，其设置于所述注射筒的头部；an injection needle, which is arranged on the head of the syringe;
阀件，其设置于所述注射针与所述注射筒之间，所述阀件用于使从所述注射筒进入所述注射针的通流截面随推抵所述活塞的推力的增大而减小。a valve element, which is arranged between the injection needle and the injection barrel, and the valve element is used to increase the flow cross section from the injection barrel into the injection needle with the thrust force pushing against the piston and decrease.
优选地，所述阀件包括：Preferably, the valve member includes:
阀体，其设置于所述注射筒的头部，所述注射针连接至所述阀体；a valve body, which is arranged on the head of the syringe, and the injection needle is connected to the valve body;
阀腔，其开设于所述阀体内；a valve cavity, which is opened in the valve body;
第一通道，其用于连通所述阀腔与所述注射筒，所述第一通道贯通至所述阀腔的腔壁以形成进口；a first channel, which is used to communicate the valve cavity and the syringe, the first channel penetrates through the cavity wall of the valve cavity to form an inlet;
第二通道，其用于连通所述阀腔与所述注射针，所述第二通道贯通至所述阀腔的腔壁以形成出口；其中：The second channel is used to communicate the valve cavity and the injection needle, and the second channel penetrates through the cavity wall of the valve cavity to form an outlet; wherein:
阀芯，其设置于所述阀腔中并能够在所述阀腔中滑动；其中：a valve core, which is arranged in the valve cavity and can slide in the valve cavity; wherein:
所述阀芯通过移动控制所述进口的开度，以当推抵所述活塞的推力增大时，所述阀芯下移以减小所述进口的开度。The valve core controls the opening degree of the inlet port by moving, so that when the thrust force pushing against the piston increases, the valve core moves down to reduce the opening degree of the inlet port.
优选地，所述阀件还包括第三通道和弹簧；Preferably, the valve member further comprises a third channel and a spring;
所述第三通道连接所述第一通道与位于所述阀芯的上方的所述阀腔；the third channel connects the first channel and the valve cavity above the valve core;
所述弹簧设置于所述阀芯的下方的所述阀腔中，且使所述弹簧处于受压状态。The spring is arranged in the valve cavity below the valve core, and makes the spring in a compressed state.
优选地，自所述阀腔的上端向所述阀腔中伸入有第一封堵头，所述第一封堵头的下端形成有凸出部，所述凸出部用于与所述阀芯接触以使得所述第三通道位于所述阀腔的一端处于打开状态。Preferably, a first blocking head is inserted into the valve cavity from the upper end of the valve cavity, and a protruding part is formed on the lower end of the first blocking head, and the protruding part is used for connecting with the valve cavity. The valve core is in contact so that one end of the third passage located in the valve cavity is in an open state.
优选地，自所述阀腔的下端向所述阀腔中伸入有第二封堵头，所述弹簧介于所述第二封堵头与所述阀芯之间。Preferably, a second blocking head extends into the valve cavity from the lower end of the valve cavity, and the spring is interposed between the second blocking head and the valve core.
优选地，所述阀体呈盘状，所述阀体朝向所述注射筒的一侧形成有螺套，所述螺套通过螺纹连接套设于所述注射筒的头部；其中：Preferably, the valve body is in the shape of a disc, and a screw sleeve is formed on the side of the valve body facing the injection cylinder, and the screw sleeve is sleeved on the head of the injection cylinder through a threaded connection; wherein:
所述螺套与所述注射筒之间设置有密封圈。A sealing ring is arranged between the screw sleeve and the injection barrel.
优选地，所述注射针靠近其头部的一段开设有多个孔洞；多个所述孔洞沿轴向依次排布。Preferably, a section of the injection needle close to its head is provided with a plurality of holes; the plurality of holes are arranged in sequence along the axial direction.
优选地，所述阀芯的中部设置有阶梯结构，所述阀芯通过阶梯结构而控制所述进口的开度。Preferably, a stepped structure is provided in the middle of the valve core, and the valve core controls the opening of the inlet through the stepped structure.
优选地，所述第一封堵头借由螺纹连接于所述阀体中。Preferably, the first plugging head is connected in the valve body by means of threads.
优选地，所述第二封堵头借由螺纹连接于所述阀体中。Preferably, the second blocking head is connected in the valve body by means of threads.
与现有技术相比，本发明公开的用于麻醉剂的给药装置的有益效果是：本发明的给药装置通过改变允许麻醉剂通过的通流截面(或称开度)能够避免在活塞压力骤然增大时，从注射针流出的麻醉剂出现骤然增大的情况，进而在一定程度上提高了给药的均匀性。Compared with the prior art, the beneficial effect of the drug delivery device for anesthetics disclosed in the present invention is that the drug delivery device of the present invention can avoid sudden changes in the piston pressure by changing the flow cross-section (or opening) that allows the anesthetic to pass through. When increasing, the anesthetic agent flowing out of the injection needle suddenly increases, thereby improving the uniformity of administration to a certain extent.
应当理解，前面的一般描述和以下详细描述都仅是示例性和说明性的，而不是用于限制本发明。It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not intended to limit the invention.
本发明中描述的技术的各种实现或示例的概述，并不是所公开技术的全部范围或所有特征的全面公开。This summary of various implementations or examples of the technology described in this disclosure is not a comprehensive disclosure of the full scope or all features of the disclosed technology.
附图说明Description of drawings
在不一定按比例绘制的附图中，相同的附图标记可以在不同的视图中描述相似的部件。具有字母后缀或不同字母后缀的相同附图标记可以表示相似部件的不同实例。附图大体上通过举例而不是限制的方式示出各种实施例，并且与说明书以及权利要求书一起用于对所发明的实施例进行说明。在适当的时候，在所有附图中使用相同的附图标记指代同一或相似的部分。这样的实施例是例证性的，而并非旨在作为本装置或方法的穷尽或排他实施例。In the drawings, which are not necessarily to scale, the same reference numbers may describe similar parts in different views. The same reference number with a letter suffix or a different letter suffix may denote different instances of similar components. The drawings illustrate various embodiments generally by way of example and not limitation, and together with the description and claims serve to explain the embodiments of the invention. Where appropriate, the same reference numbers will be used throughout the drawings to refer to the same or like parts. Such embodiments are illustrative, and are not intended to be exhaustive or exclusive embodiments of the present apparatus or method.
图1为本发明的实施例所提供的用于麻醉剂的给药装置的结构示意图(活塞受力均匀且在预定范围内)。FIG. 1 is a schematic structural diagram of a drug delivery device for anesthetics provided by an embodiment of the present invention (the force on the piston is uniform and within a predetermined range).
图2为图1的局部A的放大视图。FIG. 2 is an enlarged view of part A of FIG. 1 .
图3为本发明的实施例所提供的用于麻醉剂的给药装置的结构示意图(活塞受力骤然增大时)。FIG. 3 is a schematic structural diagram of the drug delivery device for anesthetic provided by an embodiment of the present invention (when the force on the piston increases suddenly).
图4为图3的局部B的放大视图。FIG. 4 is an enlarged view of part B of FIG. 3 .
附图标记：Reference number:
10-注射筒；20-活塞；30-活塞杆；40-注射针；41-孔洞；50-阀件；51-阀体；511-阀腔；512-螺套；52-阀芯；521-阶梯结构；53-第一通道；531-进口；54-第二通道；541-出口；55-弹簧；56-第一封堵头；561-凸出部；57-第二封堵头；58-第三通道。10-syringe; 20-piston; 30-piston rod; 40-injection needle; 41-hole; 50-valve; 51-valve body; 511-valve cavity; Step structure; 53-first channel; 531-inlet; 54-second channel; 541-outlet; 55-spring; 56-first blocking head; 561-protrusion; 57-second blocking head; 58 - Third channel.
具体实施方式Detailed ways
除非另外定义，本发明使用的技术术语或者科学术语应当为本发明所属领域内具有一般技能的人士所理解的通常意义。本发明中使用的“第一”、“第二”以及类似的词语并不表示任何顺序、数量或者重要性，而只是用来区分不同的组成部分。“包括”或者“包含”等类似的词语意指出现该词前面的元件或者物件涵盖出现在该词后面列举的元件或者物件及其等同，而不排除其他元件或者物件。“连接”或者“相连”等类似的词语并非限定于物理的或者机械的连接，而是可以包括电性的连接，不管是直接的还是间接的。“上”、“下”、“左”、“右”等仅用于表示相对位置关系，当被描述对象的绝对位置改变后，则该相对位置关系也可能相应地改变。Unless otherwise defined, technical or scientific terms used in the present invention should have the ordinary meaning as understood by one of ordinary skill in the art to which the present invention belongs. The terms "first," "second," and similar terms used herein do not denote any order, quantity, or importance, but are merely used to distinguish different components. "Comprises" or "comprising" and similar words mean that the elements or things appearing before the word encompass the elements or things recited after the word and their equivalents, but do not exclude other elements or things. Words like "connected" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "Down", "Left", "Right", etc. are only used to represent the relative positional relationship, and when the absolute position of the described object changes, the relative positional relationship may also change accordingly.
为了保持本发明实施例的以下说明清楚且简明，本发明省略了已知功能和已知部件的详细说明。In order to keep the following description of the embodiments of the present invention clear and concise, the present invention omits detailed descriptions of well-known functions and well-known components.
如图1至图4所示，本发明公开的实施例公开了一种用于麻醉剂的给药装置，该给药装置用于注射麻醉剂。该给药装置包括：注射筒10、活塞20、活塞杆30、注射针40、阀件50。As shown in FIG. 1 to FIG. 4 , the disclosed embodiments of the present invention disclose a drug delivery device for anesthesia, and the drug delivery device is used for injecting the anesthetic. The drug delivery device includes: a syringe 10 , a piston 20 , a piston rod 30 , an injection needle 40 , and a valve member 50 .
活塞20设置于注射筒10中，活塞杆30的头部伸入至注射筒10中并连接至活塞20，活塞杆30的尾部位于注射筒10的尾部外，借由推拉活塞杆30而能够使活塞20沿注射筒10的轴向滑动以进行吸取麻醉剂作业和注射麻醉剂作业。具体而言，借由人手施力于活塞杆30而驱动活塞20滑动。The piston 20 is arranged in the syringe 10, the head of the piston rod 30 protrudes into the syringe 10 and is connected to the piston 20, and the tail of the piston rod 30 is located outside the tail of the syringe 10. The piston 20 slides along the axial direction of the syringe barrel 10 to perform the operation of sucking the anesthetic agent and injecting the anesthetic agent. Specifically, the piston 20 is driven to slide by applying force to the piston rod 30 by a human hand.
注射针40设置于注射筒10的头部，该注射针40用于刺入待需麻醉的部位，以借由活塞20的推抵而将麻醉剂注入皮下组织。The injection needle 40 is disposed at the head of the syringe 10 , and the injection needle 40 is used to pierce the site to be anesthetized, so as to inject the anesthetic into the subcutaneous tissue by the push of the piston 20 .
如图2和图4所示，阀件50设置于注射针40与注射筒10之间，使得麻醉剂经过阀件50后方能够进入注射针40。该阀件50包括：阀体51、阀芯52、阀腔511、第一通道53、第二通道54、第三通道58、弹簧541、第一封堵头56、以及第二封堵头57。As shown in FIG. 2 and FIG. 4 , the valve member 50 is disposed between the injection needle 40 and the injection barrel 10 , so that the anesthetic agent can enter the injection needle 40 through the back of the valve member 50 . The valve member 50 includes: a valve body 51 , a valve core 52 , a valve cavity 511 , a first channel 53 , a second channel 54 , a third channel 58 , a spring 541 , a first plugging head 56 , and a second plugging head 57 .
阀体51大致呈盘状，以与注射筒10的截面匹配，阀腔511径向的贯通阀体51，以使得阀芯52能够进入阀腔511；阀芯52位于阀腔511中并能够沿阀腔511滑动。第一通道53为直通道，该第一通道53连通阀腔511与注射筒10，该第一通道53贯通阀腔511的腔壁的位置形成进口531；第二通道54为直通道，该第二通道54连通阀腔511与注射针40，该第二通道54贯通阀腔511的腔壁的位置形成出口541；第三通道58连通第一通道53与阀芯52上方的阀腔511，这使得药液能够通过第一通道53和第三通道58进入阀芯52的上方的阀腔511。The valve body 51 is roughly disc-shaped to match the section of the syringe 10, and the valve body 511 radially penetrates the valve body 51, so that the valve core 52 can enter the valve chamber 511; the valve core 52 is located in the valve chamber 511 and can be The valve cavity 511 slides. The first channel 53 is a straight channel, the first channel 53 communicates with the valve cavity 511 and the syringe 10, and the first channel 53 penetrates the cavity wall of the valve cavity 511 to form an inlet 531; the second channel 54 is a straight channel, the first channel 53 is a straight channel, the The second channel 54 communicates with the valve cavity 511 and the injection needle 40 , and the second channel 54 passes through the cavity wall of the valve cavity 511 to form an outlet 541 ; the third channel 58 communicates with the first channel 53 and the valve cavity 511 above the valve core 52 . The liquid medicine can enter the valve cavity 511 above the valve core 52 through the first channel 53 and the third channel 58 .
第一封堵头56自阀腔511的上端伸入至阀腔511中以位于阀芯52的上方，该第一封堵头56的下端设置有凸出部561，该凸出部561用于与阀芯52的上端面接触而使得第三通道58位于阀腔511的一端能够始终处于打开状态。The first blocking head 56 protrudes from the upper end of the valve cavity 511 into the valve cavity 511 to be located above the valve core 52 . The lower end of the first blocking head 56 is provided with a protruding part 561 , and the protruding part 561 is used for In contact with the upper end surface of the valve core 52 , the end of the third passage 58 located in the valve cavity 511 can always be in an open state.
在阀芯52的中部设置有阶梯结构521，该阶梯结构521通过柱状的阀芯52加工出轴肩获得，该阶梯结构521的轴肩位置用于控制进口531的开度：当阀芯52下移时，轴肩增大对进口531的遮蔽量，以使得进口531的开度减小，而当阀芯52上移时，轴肩减小对进口531的遮蔽量而使得进口531的开度增大。A stepped structure 521 is provided in the middle of the valve core 52. The stepped structure 521 is obtained by machining a shaft shoulder from the cylindrical valve core 52. The position of the shoulder of the stepped structure 521 is used to control the opening of the inlet 531: when the valve core 52 is lowered When moving up, the shaft shoulder increases the shielding amount of the inlet 531, so that the opening of the inlet 531 decreases, and when the valve core 52 moves up, the shoulder reduces the shielding amount of the inlet 531, so that the opening of the inlet 531 is reduced. increase.
第二封堵头57自阀腔511的下端伸入至阀腔511中以位于阀芯52的下方，弹簧541设置于阀腔511中并介于阀芯52与第二封堵头57之间，使弹簧541处于压缩状态，进而使得弹簧541对阀芯52始终具有一定的向上的弹力，这能够使得阀芯52处于与第一封堵头56接触的上位。The second plugging head 57 protrudes from the lower end of the valve cavity 511 into the valve cavity 511 to be located below the valve core 52 , and the spring 541 is disposed in the valve cavity 511 and interposed between the valve core 52 and the second plugging head 57 , so that the spring 541 is in a compressed state, so that the spring 541 always has a certain upward elastic force on the valve core 52 , which can make the valve core 52 in the upper position in contact with the first blocking head 56 .
下面介绍一下本发明的给药装置的工作原理。The working principle of the drug delivery device of the present invention will be described below.
当需要吸取麻醉剂时，使针头伸入至麻醉剂容器中，施力拉动活塞杆30，麻醉剂借由第二通道54进入阀腔511中，并借由两个轴肩之间的柱体与阀腔511之间的间隙而通过进口531进入第一通道53，并流经第一通道53后而进入注射筒10中。When the anesthetic needs to be sucked, the needle is inserted into the anesthetic container, and the piston rod 30 is pulled by force. 511 to enter the first channel 53 through the inlet 531 , and flow through the first channel 53 to enter the syringe 10 .
当需要向指定部位注射麻醉剂时，针头刺入对应位置的组织，施力推抵活塞杆30，活塞20对注射筒10内的麻醉剂施加压力而使得麻醉剂通过第一通道53和第二通道54进入注射针40，并通过注射针40注入该组织中。When an anesthetic needs to be injected into a designated site, the needle pierces the tissue at the corresponding position, pushes against the piston rod 30 with force, and the piston 20 applies pressure to the anesthetic in the syringe 10 so that the anesthetic enters through the first channel 53 and the second channel 54 The needle 40 is injected and injected into the tissue through the needle 40 .
应该说明：麻醉剂通过第三通道58能够进入阀芯52的上方的阀腔511中，也就是说，阀芯52上方的阀腔511中具有麻醉剂，且麻醉剂的压力与注射筒10内的压力大致相等。It should be noted that the anesthetic agent can enter the valve cavity 511 above the valve core 52 through the third channel 58 , that is, the valve cavity 511 above the valve core 52 has anesthetic agent, and the pressure of the anesthetic agent is approximately the same as the pressure in the syringe 10 . equal.
如图2所示，在注射过程中，若施力在预定范围内且均匀，弹簧541的弹力大于阀芯52上端的麻醉剂的压力，使得阀芯52位于上位，此时，轴肩(或称阶梯结构521)对进口531的遮蔽量最小，进口531的开度最大。As shown in FIG. 2, during the injection process, if the force is within a predetermined range and is uniform, the elastic force of the spring 541 is greater than the pressure of the anesthetic agent at the upper end of the valve core 52, so that the valve core 52 is in the upper position. The step structure 521) has the smallest shielding amount to the inlet 531, and the opening of the inlet 531 is the largest.
如图4所示，若施力大于预定范围内时，注射筒10内的麻醉剂的压力增大，相应地，阀芯52的上方的麻醉剂的压力也增大，该压力克服弹簧541的弹力而使阀芯52下移，进而增大了对进口531的遮蔽量，使得进口531的开度变小。As shown in FIG. 4 , if the applied force is larger than the predetermined range, the pressure of the anesthetic agent in the syringe 10 increases, and accordingly, the pressure of the anesthetic agent above the valve core 52 also increases, and the pressure overcomes the elastic force of the spring 541 to increase the pressure of the anesthetic agent. The valve core 52 is moved down, thereby increasing the shielding amount of the inlet 531, so that the opening of the inlet 531 becomes smaller.
根据流体学原理，当流体的流量为常数时，通流截面(例如，上述的进口531的开度为允许麻醉剂通过的通流截面)与流体的压力呈反比。也就是说，在麻醉剂的压力增大时，本发明通过减小进口531的开度使得麻醉剂流入注射针40的流量大致保持不变，或者避免流量骤然增大。According to the principle of fluids, when the flow rate of the fluid is constant, the flow cross section (for example, the above-mentioned opening of the inlet 531 is the flow cross section that allows the anesthetic to pass through) is inversely proportional to the pressure of the fluid. That is to say, when the pressure of the anesthetic agent increases, the present invention reduces the opening of the inlet 531 so that the flow rate of the anesthetic agent flowing into the injection needle 40 remains approximately constant, or avoids a sudden increase in the flow rate.
本发明的给药装置通过改变允许麻醉剂通过的通流截面(或称开度)能够避免在活塞20压力骤然增大时，从注射针40流出的麻醉剂出现骤然增大的情况，进而在一定程度上提高了给药的均匀性。The drug delivery device of the present invention can avoid the sudden increase of the anesthetic flowing from the injection needle 40 when the pressure of the piston 20 increases suddenly by changing the flow cross section (or the opening degree) that allows the anesthetic to pass through, and to a certain extent It improves the uniformity of dosing.
在一些优选实施例中，阀体51呈盘状，阀体51朝向注射筒10的一侧形成有螺套512，螺套512通过螺纹连接套设于注射筒10的头部；其中：螺套512与注射筒10之间设置有密封圈。In some preferred embodiments, the valve body 51 is in the shape of a disc, and a screw sleeve 512 is formed on the side of the valve body 51 facing the syringe 10, and the screw sleeve 512 is sleeved on the head of the syringe 10 through a threaded connection; wherein: the screw sleeve A sealing ring is arranged between 512 and the syringe 10 .
在一些优选实施例中，注射针40靠近其头部的一段开设有多个孔洞41；多个孔洞41沿轴向依次排布。如此，当注射针40伸入至组织后，麻醉剂可通过多个孔洞41同时流出，进而增大了进行一次注射而获得的麻醉面积。In some preferred embodiments, a section of the injection needle 40 close to its head is provided with a plurality of holes 41 ; the plurality of holes 41 are arranged in sequence along the axial direction. In this way, after the injection needle 40 is inserted into the tissue, the anesthetic can flow out through the plurality of holes 41 at the same time, thereby increasing the area of anesthesia obtained by one injection.
此外，尽管已经在本发明中描述了示例性实施例，其范围包括任何和所有基于本发明的具有等同元件、修改、省略、组合(例如，各种实施例交叉的方案)、改编或改变的实施例。权利要求书中的元件将被基于权利要求中采用的语言宽泛地解释，并不限于在本说明书中或本申请的实施期间所描述的示例，其示例将被解释为非排他性的。因此，本说明书和示例旨在仅被认为是示例，真正的范围和精神由以下权利要求以及其等同物的全部范围所指示。Furthermore, although exemplary embodiments have been described in this invention, the scope thereof includes any and all equivalents, modifications, omissions, combinations (eg, where various embodiments intersect), adaptations, or alterations based on this invention Example. Elements in the claims are to be construed broadly based on the language employed in the claims, and are not to be limited to the examples described in this specification or during the practice of this application, the examples of which are to be construed as non-exclusive. Therefore, this specification and examples are intended to be regarded as examples only, with the true scope and spirit being indicated by the following claims along with their full scope of equivalents.
以上描述旨在是说明性的而不是限制性的。例如，上述示例(或其一个或更多方案)可以彼此组合使用。例如本领域普通技术人员在阅读上述描述时可以使用其它实施例。另外，在上述具体实施方式中，各种特征可以被分组在一起以简单化本发明。这不应解释为一种不要求保护的公开的特征对于任一权利要求是必要的意图。相反，本发明的主题可以少于特定的公开的实施例的全部特征。从而，以下权利要求书作为示例或实施例在此并入具体实施方式中，其中每个权利要求独立地作为单独的实施例，并且考虑这些实施例可以以各种组合或排列彼此组合。本发明的范围应参照所附权利要求以及这些权利要求赋权的等同形式的全部范围来确定。The above description is intended to be illustrative and not restrictive. For example, the above examples (or one or more of them) may be used in combination with each other. For example, other embodiments may be utilized by those of ordinary skill in the art upon reading the above description. Additionally, in the above Detailed Description, various features may be grouped together to simplify the present invention. This should not be construed as an intention that an unclaimed disclosed feature is essential to any claim. Rather, inventive subject matter may lie in less than all features of a particular disclosed embodiment. Thus, the following claims are hereby incorporated into the Detailed Description by way of example or embodiment, with each claim standing on its own as a separate embodiment, and it is contemplated that these embodiments may be combined with each other in various combinations or permutations. The scope of the invention should be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled.
以上实施例仅为本发明的示例性实施例，不用于限制本发明，本发明的保护范围由权利要求书限定。本领域技术人员可以在本发明的实质和保护范围内，对本发明做出各种修改或等同替换，这种修改或等同替换也应视为落在本发明的保护范围内。The above embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and the protection scope of the present invention is defined by the claims. Those skilled in the art can make various modifications or equivalent replacements to the present invention within the spirit and protection scope of the present invention, and such modifications or equivalent replacements should also be regarded as falling within the protection scope of the present invention.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910846074.XACN110559515A (en) | 2019-09-09 | 2019-09-09 | drug delivery device for anesthetic |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910846074.XACN110559515A (en) | 2019-09-09 | 2019-09-09 | drug delivery device for anesthetic |
| Publication Number | Publication Date |
|---|---|
| CN110559515Atrue CN110559515A (en) | 2019-12-13 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910846074.XAPendingCN110559515A (en) | 2019-09-09 | 2019-09-09 | drug delivery device for anesthetic |
| Country | Link |
|---|---|
| CN (1) | CN110559515A (en) |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | Application publication date:20191213 | |
| RJ01 | Rejection of invention patent application after publication |