Booster

Abstract

The embodiment of the invention discloses a disposable booster, a doctor does not need to pay time to maintain the booster, and fast, efficient and safe use of the booster is achieved. The booster comprises a push rod, a connecting structure and a medicine bin. The connecting structure is tubular, the first end face of the connecting structure is provided with a first through hole connected with the push rod in a matched mode, and the second end of the connecting structure is provided with a first buckle structure; the medicine bin is tubular, the first end of the medicine bin is provided with a second buckle structure matched with the first buckle structure, the second end of the medicine bin is provided with a needle head connecting structure, and a non-detachable connecting structure is formed when the first buckle structure and the second buckle structure are connected in a matched mode; the push rod is matched with the first through hole and is connected with the connecting structure in a sliding and penetrating mode.

Description

[0001] This application is a divisional application of the invention with application date of May 14, 2021, application number 202110528655.6, and name “A Booster”. Technical Field

[0002] The embodiments of the present application relate to the field of medical devices, and in particular to a booster. Background Art

[0003] At present, boosters used for dental anesthesia are generally reusable metal boosters, which can be reused after high temperature and high pressure sterilization. Because the metal booster needs to meet the requirement of reusability, the various components of the metal booster are generally detachably connected to facilitate doctors to disassemble the metal booster for sterilization. When the metal booster is needed, the doctor assembles the various components of the metal booster, puts an anesthetic bottle (usually a cartridge bottle) in the medicine chamber of the metal booster, and installs a disposable needle at one end of the metal booster for use.

[0004] However, in the prior art, the manual assembly process of the various components of the metal booster by the doctor may cause contamination to the metal booster, and if the reusable metal booster in the prior art is not sterilized in time after each use, it is easy to cause cross infection between patients using the metal booster, and the metal booster in the prior art requires doctors to spend a lot of time on maintenance.

[0005] It can be seen that the metal boosters in the prior art are neither safe nor efficient, and there is an urgent need for a fast, efficient and safe booster. Summary of the invention

[0006] The embodiment of the present application provides a disposable booster, which does not require doctors to spend time maintaining the booster, thereby achieving quick, efficient and safe use of the booster.

[0007] The booster of the present application comprises: a push rod, a connecting structure, and a medicine chamber;

[0008] The connecting structure is tubular, the first end surface of the connecting structure has a first through hole that is matched and connected with the push rod, and the second end of the connecting structure has a first buckle structure;

[0009] The medicine bin is tubular, the first end of the medicine bin has a second buckle structure adapted to the first buckle structure, the second end of the medicine bin has a needle connection structure, and the first buckle structure and the second buckle structure form a non-detachable connection structure when they are matched and connected;

[0010] The push rod is adapted to the first through hole and can slide through and connect to the connection structure.

[0011] Optionally, the first buckle structure is a radial buckle structure, and the second end of the connecting structure has a guide groove;

[0012] The first end of the medicine bin is provided with a guide block adapted to the guide groove.

[0013] Optionally, the connection structure includes: a hand-held sleeve and a connection sleeve;

[0014] The hand-held cover is tubular, the first end surface of the hand-held cover has the first through hole, and the inner wall of the hand-held cover has a radial groove and an axial groove;

[0015] The connecting sleeve is tubular and can be nested in the hand-held sleeve. The outer wall of the connecting sleeve has radial ribs adapted to the radial grooves and axial ribs adapted to the axial grooves. The second end of the connecting sleeve has the first buckle structure and the second end of the connecting sleeve has the guide groove.

[0016] or,

[0017] The hand-held cover is tubular, the first end surface of the hand-held cover has the first through hole, and the inner wall of the hand-held cover has radial convex ribs and axial convex ribs;

[0018] The connecting sleeve is tubular and can be nested in the hand-held sleeve. The outer wall of the connecting sleeve has radial grooves that match the radial ribs and axial grooves that match the axial ribs. The second end of the connecting sleeve has the first snap-fit ​​structure, and the second end of the connecting sleeve has the guide groove.

[0019] Optionally, the connecting sleeve includes: a medicine chamber sleeve and a push rod sleeve;

[0020] The medicine chamber cover is tubular, the outer wall of the medicine chamber cover has the radial convex ribs and the axial convex ribs or the radial grooves and the axial grooves, the second end of the medicine chamber cover has the first buckle structure, and the second end of the medicine chamber cover has the guide groove;

[0021] The push rod sleeve is tubular, fixedly connected in the medicine chamber sleeve, and has a third through hole that cooperates with the push rod.

[0022] Optionally, the connecting sleeve includes: a medicine chamber sleeve and a push rod sleeve;

[0023] The medicine chamber cover is tubular, the outer wall of the medicine chamber cover has the radial convex rib and the axial convex rib or the radial groove and the axial groove, the second end of the medicine chamber cover has the first buckle structure, the second end of the medicine chamber cover has the guide groove, and the inner wall of the medicine chamber cover has a third annular protrusion;

[0024] The push rod sleeve is tubular, and its outer diameter is smaller than the inner diameter of the third annular protrusion. The outer wall of the push rod sleeve has a fourth annular protrusion, and the outer diameter of the fourth annular protrusion is larger than the inner diameter of the third annular protrusion and smaller than the inner diameter of the medicine chamber sleeve, so as to fix the fourth annular protrusion between the third annular protrusion and the first end face of the hand-held sleeve. The push rod sleeve has the third through hole that cooperates with the push rod.

[0025] Optionally, it also includes: a friction sleeve;

[0026] The friction sleeve has a fourth through hole that is matched with the push rod. The friction sleeve is arranged outside the push rod and fixed inside the push rod sleeve.

[0027] Optionally, the second end of the push rod is detachably connected to a rubber pad, a metal puncture hook or a metal threaded drill bit.

[0028] Optionally, the medicine chamber has an observation window and scale values.

[0029] Optionally, it also includes: a cartridge bottle with a preset dose of liquid medicine;

[0030] The cartridge bottle is adapted to be installed in the medicine bin, and one end of the push rod abuts against the movable rubber stopper of the cartridge bottle.

[0031] It can be seen from the above technical solutions that the embodiments of the present application have the following advantages:

[0032] The booster of the embodiment of the present application includes a push rod, a connecting structure and a medicine magazine, wherein the connecting structure is tubular, and the first end face of the first end of the connecting structure has a first through hole that cooperates with the push rod, and the second end of the connecting structure has a first snap structure; the medicine magazine is tubular, and the first end of the medicine magazine has a second snap structure that is adapted to the first snap, wherein the first snap structure becomes a non-detachable connection structure when cooperated with the second snap structure, and the second end of the medicine magazine has a needle connection structure. In the initial state, the push rod is adapted to the first through hole and can slide through the connecting structure, and the connecting structure is not connected to the medicine chamber. At this time, the medicine bottle to be injected (for example, a cartridge bottle pre-filled with the liquid to be injected) needs to be correctly placed in the medicine chamber, and then the first snap structure of the connecting structure and the second snap structure of the medicine chamber are matched and connected to form a non-detachable connecting structure, so that one end of the push rod in the connecting structure abuts against the movable rubber plug in the cartridge bottle, and then the disposable needle is installed in cooperation with the needle connecting structure at the second end of the medicine chamber, so that one end of the disposable needle pierces into the cartridge bottle to contact the liquid. At this time, the disposable needle is fixedly connected to the booster of the present application, and the other end of the disposable needle can be used as an injection end. At this time, you only need to hold the connecting structure and push the push rod to realize the liquid in the cartridge bottle flowing through the disposable needle and ejecting it, and medical staff can use the booster for normal use. It can be seen that in order to avoid multiple uses, the booster of the embodiment of the present application has a non-detachable connection structure when the connection structure and the medicine chamber are connected, thereby locking the medicine bottle in the medicine chamber to prevent the medicine bottle from being taken out of the medicine chamber again, effectively ensuring that the booster of the present application can only be used once, and the booster of the embodiment of the present application has a simple structure and is easy to install. The doctor does not need to spend time on maintenance and servicing the booster, thereby achieving fast, efficient and safe use of the booster, and when the booster of the present application is mass-produced using plastic that meets medical standards, the manufacturing cost of each booster can be lower than the single maintenance cost of each traditional metal booster. It can be seen that the booster of the embodiment of the present application has a cost advantage while meeting the requirements of fast, efficient and safe use. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 An exploded diagram of the structure of an embodiment of the booster of the present application;

[0034] Figure 2 A schematic diagram of the structure of an embodiment of the booster adapter of the present application for mounting a medicine bottle and a needle;

[0035] Figure 3 This is a schematic diagram of the structure of an embodiment of a connector and a push rod in the booster of the present application;

[0036] Figure 4 A cross-sectional view of an embodiment of a connector and a push rod in the booster of the present application;

[0037] Figure 5This is a schematic structural diagram of an embodiment of a connecting sleeve in the booster of the present application;

[0038] Figure 6 A cross-sectional view of an embodiment of the booster adapter of the present application for mounting a medicine bottle and a needle;

[0039] Figure 7 for Figure 6 A partial enlarged view of part A;

[0040] Figure 8 A cross-sectional view of another embodiment of the booster adapter of the present application for mounting a medicine bottle and a needle;

[0041] Fig. 9 for Figure 8 A partial enlarged view of part B;

[0042] Fig.10 This is a schematic structural diagram of an embodiment of the medicine chamber sleeve of the booster of the present application;

[0043] Fig.11 This is a schematic structural diagram of an embodiment of a push rod sleeve in the booster of the present application;

[0044] Fig.12 A cross-sectional view of another embodiment of the booster adapter of the present application for mounting a medicine bottle and a needle;

[0045] Fig.13 for Fig.12 A partial enlarged view of part C in the middle;

[0046] Fig.14 This is a schematic diagram of the structure of an embodiment of a push rod in the booster of the present application;

[0047] Fig.15 This is a schematic structural diagram of an embodiment of a spiral drill bit in the booster of the present application. DETAILED DESCRIPTION

[0048] The embodiment of the present application provides a disposable booster, which does not require doctors to spend time maintaining the booster, thereby achieving quick, efficient and safe use of the booster.

[0049] See also Figure 1 , Figure 2 as well as Figure 3An embodiment of the booster of the present application includes: a push rod 300, a connecting structure 200 and a medicine chamber 100. The main body of the connecting structure 200 is tubular and used to cooperate with the push rod 300 and the medicine chamber 100. The first end face 201 of the first end of the connecting structure 200 has a first through hole 202 that cooperates with the push rod 30. The second end of the connecting structure 200 has a first buckle structure. The push rod 300 is adapted to the first through hole 202 and can slide through and connect the connecting structure 200, so that the second end of the push rod 300 can be slidably connected to the first through hole 202 and extend into the connecting structure 200; the medicine chamber 100 is also tubular and used to adapt to the medicine bottle 400 that encapsulates liquid in the form of a cartridge bottle, etc. The first end of the medicine chamber 100 has a second buckle structure that is adapted to the first buckle structure. When the first buckle structure is connected with the second buckle structure, it will become a non-detachable connection structure, thereby locking the medicine bottle 400 installed in the medicine chamber 100 to prevent the medicine bottle 400 from being taken out of the medicine chamber 100 again, effectively ensuring that the booster of the present application can only be used once. The second end of the Chinese medicine chamber 100 of the booster in the embodiment of the present application has a needle connection structure 120. The needle connection structure 120 generally adopts a standard interface commonly used in the market, so as to adapt to disposable needles on the market to use the booster of the present application, thereby reducing the cost of using the booster of the present application.

[0050] One product form of the booster of the embodiment of the present application is: the push rod 300 is adapted to the first through hole 202 and can slide through and connect the connection structure 200, and the connection structure 200 is not connected to the medicine chamber 100. This product form can be that the connection structure 200 and the push rod 300 are adapted to be sterilized and disinfected and then packaged independently, or the medicine chamber is sterilized and disinfected and then packaged independently. The booster in this product form requires the user (medical staff) to put the medicine bottle 400 to be injected (for example, a cartridge bottle pre-filled with the liquid to be injected) into the medicine chamber 100 correctly by himself (for example, the cartridge bottle has a first end with one end of the movable rubber plug 420 facing the medicine chamber 100), and then the first buckle structure of the connection structure 200 is matched with the second buckle structure of the medicine chamber 100 to form a non-detachable connection structure, so that the second end of the push rod 300 located in the connection structure 200 abuts against the movable rubber plug 420 in the cartridge bottle, and then in the medicine chamber 100. The needle connecting structure 120 at the second end cooperates with the disposable needle 500 to be installed, so that one end of the disposable needle 500 pierces the sealing plug 430 and enters the cartridge bottle 410 to contact the liquid to be injected. At this time, the disposable needle 500 is fixedly connected to the booster of the present application, and the other end of the disposable needle 500 can be used as an injection end. At this time, you only need to hold the connecting structure 200 and push the push rod 300 to realize the liquid in the medicine bottle 400 flowing through the disposable needle 500 and being ejected. Medical staff can use the booster for normal injection. It can be seen that the booster in the above product form is mainly composed of two independently packaged structures, which is convenient for medical personnel to flexibly install the required medicine bottles for use according to on-site needs. In order to avoid multiple uses, the booster of the embodiment of the present application forms a non-detachable connection structure when the connection structure 200 and the medicine bin 100 are connected, thereby locking the medicine bottle in the medicine bin 100 to prevent the medicine bottle 400 from being taken out of the medicine bin 100 again, effectively ensuring that the booster of the present application can only be used once. The booster of the embodiment of the present application has a simple structure and is easy to install. Doctors do not need to spend time to maintain the booster, which makes the use of the booster fast, efficient and safe. It should be noted that when the booster of the present application is mass-produced using plastic that meets medical standards, the manufacturing cost of each booster can be lower than the single maintenance cost of each traditional metal booster. It can be seen that the booster of the embodiment of the present application has a cost advantage while meeting the requirements of fast, efficient and safe use.

[0051] Further, another product form of the booster of the embodiment of the present application is: the push rod 300 is adapted to the first through hole 211 and can slide through and connect the connection structure 200, the medicine chamber 100 is pre-loaded with a medicine bottle of a specific dose of medicine, and the first buckle structure of the connection structure 200 is connected to the second buckle structure of the medicine chamber 100 to form an inseparable connection structure. That is to say, in this product form, the booster of the embodiment of the present application has been pre-loaded with a cartridge bottle of a preset dose of liquid medicine, such as 2ml of anesthetic, and one end of the push rod 300 is against the movable rubber plug of the cartridge bottle. In this product form, the booster with the cartridge bottle of the preset dose of liquid medicine can be sterilized and packaged independently, so that the medical staff can directly take out the booster in this product state from the sterile packaging, and only need to install a disposable needle at the needle connection structure 120 of the medicine chamber 100 for use, further saving the process of medical staff installing the medicine bottle, which is used in the scene of doctors performing rapid injection, improving the use speed of the booster, and reducing the risk of the booster being contaminated.

[0052] Based on the above understanding, a more detailed embodiment of the booster of the present application is described below.

[0053] Specifically, in order to make the first buckle structure of the connection structure 200 and the second buckle structure of the medicine chamber 100 in the booster of the present application form a non-detachable structure, the first buckle structure and the second buckle structure can adopt a ratchet and ratchet groove structure that cooperate with each other, and the ratchet and the ratchet groove are located inside the whole formed by the medicine chamber 100 and the connection structure 200 when they are connected in cooperation, so that people cannot make the ratchet disengage from the ratchet groove from the outside of the booster, and thus cannot achieve the disassembly of the medicine chamber 100 and the connection structure 200, which effectively guarantees the non-replaceable removal of the medicine bottle installed in the medicine chamber 100, and thus guarantees the disposable use of the booster of the present application. For example, when the first buckle structure is a ratchet, the second buckle structure is a ratchet groove; when the first buckle structure is a ratchet groove, the second buckle structure is a ratchet.

[0054] More specifically, according to the different installation modes of the first snap-fit ​​structure and the second snap-fit ​​structure, the first snap-fit ​​structure at the second end of the connecting structure 200 in the booster of the embodiment of the present application can be a radial snap-fit ​​structure, and the first snap-fit ​​structure is preferably a ratchet groove located on the inner wall of the connecting structure 200, and the ratchet groove is generally a blind hole with a right-angled triangle cross section; the second snap-fit ​​structure of the medicine chamber 100 corresponding to the first snap-fit ​​structure should also be a radial snap-fit ​​structure, and the second snap-fit ​​structure is preferably a ratchet located on the outer wall of the first end of the medicine chamber 100, and the ratchet is generally a convex block with a right-angled triangle cross section, for example Figure 1The second buckle structure 110 is shown in the figure as being located on the outer wall of the first end of the medicine bin 100. The so-called radial buckle structure is that the first buckle structure and the second buckle structure need to be rotated in a single direction to achieve a mating connection at a specific position, and the first buckle structure and the second buckle structure of the embodiment of the present application will be stuck after being matingly connected and can no longer rotate. It can be seen that since the radial buckle structure requires the first buckle structure and the second buckle structure to be rotated before being matingly connected, the premise is that the first buckle structure and the second buckle structure need to be located in the same rotation plane. The second end of the connection structure 200 of the embodiment of the present application is preferably provided with a guide groove, and the outer wall of the first end of the medicine bin 100 is provided with a guide block adapted to the guide groove, and the guide block can guide the second buckle structure on the medicine bin 100 and the first buckle structure of the connection structure 200 to slide to the same rotation plane along the guide groove, and then the guide block is further guided along the guide groove and rotates a certain angle so that the second buckle structure of the medicine bin 100 and the first buckle structure of the connection structure 200 are matingly connected.

[0055] It is understandable that the first buckle structure at the second end of the connection structure 200 in the booster of the embodiment of the present application can also be a longitudinal buckle structure, and the first buckle structure is preferably a ratchet groove located on the inner wall of the connection structure; the second buckle structure of the medicine chamber 100 that is adapted to be connected with the first buckle structure should also be a longitudinal buckle structure, and the second buckle structure is preferably a ratchet located at the first end of the medicine chamber 100, and the ratchet is generally a convex block with a right-angled triangle cross-section, and the ratchet has a certain elastic deformation capacity. The so-called longitudinal buckle structure is that the first buckle structure and the second buckle structure can be connected at a specific position after being sleeved along the length direction of the booster (i.e., the longitudinal direction), and the first buckle structure and the second buckle structure of the embodiment of the present application will be stuck after being connected, and can no longer move longitudinally relative to each other. Furthermore, in order to allow the second snap-fit ​​structure to smoothly cooperate and connect with the corresponding first snap-fit ​​structure, a corresponding guide groove can be set on the inner wall of the connecting structure 200, and the guide groove is used to guide the second snap-fit ​​structure of the medicine bin 100 to slide to the first snap-fit ​​structure to achieve a cooperative connection. There is no need to form a guide block on the medicine bin 100 here, because the second snap-fit ​​structure has the function of a guide block in the longitudinal installation method.

[0056] It can be understood that since the medicine chamber 100 and the connecting structure 200 of the embodiment of the present application are both tubular, the connecting structure 200 and the medicine chamber 100 which are arranged mutually, can be provided with a plurality of first snap structures and second snap structures that cooperate with each other, and the number of the first snap structures and the second snap structures that cooperate with each other is not limited herein.

[0057] For details, please refer to Figure 3The first end of the connection structure 200 of the booster in the embodiment of the present application can symmetrically extend a hand-held portion 203 in the radial direction, and the hand-held portion 203 is used to facilitate the medical staff to fix the booster with their fingers. The first end of the push rod 300 of the booster in the embodiment of the present application is also provided with a push rod ring 320, and the push rod ring is used to facilitate the medical staff to control the thrust amount of the push rod body 310 with their thumb. The cross-section of the push rod body 310 of the push rod 300 can be in a "+" shape, a circle, or the like. For further information, please refer to Fig.14 ,as well as Fig.15 The second end of the push rod body 310 of the push rod 300 in the booster of the present application can be detachably connected with a rubber pad 330, a metal puncture hook or a metal threaded drill bit 340, etc., so as to realize different types of abutment between the push rod body 310 and the movable rubber plug 420 in the medicine bottle 400. The contact between the push rod body 310 and the movable rubber plug 420 of the medicine bottle 400 through the rubber pad 330 will make the injection process of the medicine solution using the booster gentler, which is more suitable for the injection of strong or irritating medicine solutions; when the push rod body 310 is invasively connected to the movable rubber plug 420 of the medicine bottle 400 through the metal puncture hook or the metal threaded drill bit 340, the push rod 300 realizes an integrated connection with the movable rubber plug 420, which can meet some use scenarios with suction requirements. It is understandable that when the second end of the push rod body 310 is detachably connected to the metal threaded drill bit 340, the rubber pad 330 can be detachably connected to the second end of the push rod body 310; the metal threaded drill bit 340 is specifically: a thread 342 is formed at the second end of the drill bit body 341, a push rod connecting block 344 that is matched and connected with the push rod body 310 is formed at the second end of the drill bit body 341, and a rubber pad connecting block 343 for mounting the rubber pad 330 is formed between the thread 342 of the drill bit body 341 and the push rod connecting block 344. When the metal threaded drill bit 340 is connected to the second end of the push rod body 310 through the push rod connecting block 344, the rubber pad 330 can be matched and connected to the rubber pad connecting block 343 of the metal threaded drill bit 340, and such a push rod 300 can meet the use requirements of various scenarios.

[0058] For further information, see Figure 2In the booster of the embodiment of the present application, the medicine chamber 100 has an observation window 150, which can be a transparent observation area set on the medicine chamber 100; the observation window 150 can also be hollowed out on the medicine chamber 100. When the observation window 150 is hollowed out, the hollowed-out observation window 150 should not be enough to allow the medicine bottle 400 installed in the medicine chamber 100 to be taken out, so as to ensure the disposable use of the booster of the embodiment of the present application. The observation window 150 preferably allows uninterrupted viewing of the entire medicine bottle 400, the movable rubber plug 420 and the sealing rubber plug 430, so as to know whether the needle tube 520 of the disposable needle 500 has successfully punctured into the medicine bottle by observing the sealing rubber plug 430, and the injection amount can be known by observing the movement of the movable rubber plug 420. It is worth noting that a scale value 160 is also provided next to the observation window 150 on the medicine chamber 100, and the scale value 160 preferably has a zero value located in the direction of the needle connection structure 120 of the medicine chamber 100.

[0059] For further information, see Figure 4 as well as Figure 5 The connection structure 200 of the booster of the embodiment of the present application may include: a hand-held sleeve 210 and a connection sleeve 220. The hand-held sleeve 210 is tubular, and the first end face of the hand-held sleeve 210 is the first end face 201 of the connection structure 200. The first through hole of the first end face of the hand-held sleeve 210 is the first through hole 202 of the first end face 201 of the connection structure 200, and the inner wall of the hand-held sleeve 210 has a radial groove and an axial groove. The connection sleeve 220 is tubular, and the connection sleeve 220 can be nested and installed in the hand-held sleeve 210. The outer wall of the connection sleeve 220 has a radial rib 221 adapted to the radial groove of the hand-held sleeve 210 and an axial rib 222 adapted to the axial groove. The axial rib 222 and the axial groove are mutually matched and connected so that the connection sleeve 220 and the hand-held sleeve 210 are cooperatively restricted in the direction of rotational freedom, and the radial rib 221 and the axial groove are mutually matched and connected so that the connection sleeve 220 and the hand-held sleeve 210 are restricted in the axial (longitudinal) freedom direction. The radial rib 221 and the radial groove should be interference fit, so that the connecting sleeve 220 and the hand-held sleeve 210 cannot be easily disassembled or even cannot be disassembled after being connected. The second end of the connecting sleeve 220 has a first buckle structure 223 of the connecting structure 200, and when a guide groove is required in the connecting structure 200, the guide groove is mainly formed in the connecting sleeve 220. Figure 5As shown, when the first buckle structure 223 is a ratchet groove of a radial buckle structure, a corresponding guide groove may be provided on the connecting sleeve 220, and the guide groove includes a longitudinal guide groove 224 and a radial rotation guide groove 225. The longitudinal guide groove 224 is used to guide the guide block 130 at the first end of the medicine bin 100 to be sleeved into the connecting sleeve 220 in the axial direction, and the first buckle structure 223 and the second buckle structure 110 are located in the same rotation plane. The radial rotation guide groove 225 is used to guide the guide block 130 at the first end of the medicine bin 100 to rotate in the radial direction, so that the second buckle structure 110 is matched with the first buckle structure 223. When the first buckle structure 223 is connected to the second buckle structure 1 10 is connected with the guide block 130, and the guide block 130 also reaches the limit position of the radial rotation guide groove 225. At this time, since the first snap structure 223 is a ratchet groove of a radial snap structure, the second snap structure 110 is a ratchet, and the ratchet and the ratchet groove can only slide in one direction, the medicine bin 100 cannot rotate backward, and at this time, the guide block 130 also reaches the limit position of the radial rotation guide groove 225, so that the medicine bin 100 cannot rotate forward, thereby realizing the inseparable connection between the medicine bin 100 and the connecting sleeve 220. From the above introduction, it can be known that the connecting sleeve 220 and the hand-held sleeve 210 are also inseparable, so the inseparable connection between the medicine bin 100, the connecting sleeve 220 and the hand-held sleeve 210 is realized.

[0060] It is understandable that the inner wall of the hand-held sleeve 210 of the present embodiment can also be radial convex ribs and axial convex ribs, and then the corresponding outer wall of the connecting sleeve 220 has radial grooves adapted to the radial convex ribs and axial grooves adapted to the axial convex ribs. As long as the fixed and non-detachable connection between the hand-held sleeve 210 and the connecting sleeve 220 can be achieved, the connection method between the hand-held sleeve 210 and the connecting sleeve 220 is not limited. In this embodiment, the connecting structure 200 is divided into two parts, the connecting sleeve 210 and the hand-held sleeve 220, for production, and then they are matched and connected through the above-mentioned fixed connection method, which can avoid too many characteristic detail structures being concentrated in a single connecting structure 200, thereby resulting in excessive production costs of a single component. After the connection structure 200 is divided into the connection sleeve 210 and the hand-held sleeve 220, the above-mentioned application embodiment has more feature details in total (there is an additional connection feature between the hand-held sleeve 210 and the connection sleeve 220), but the details of the individual parts have been reduced, and the need to open a guide groove on the inner wall of the connection structure 200 and other complex features is avoided. Instead of opening a guide groove on the inner wall of the connection structure 200, a hollow longitudinal guide groove 224 and a radial rotation guide groove 225 are formed on the connection sleeve 210. In terms of the current large-scale manufacturing process using mold forming, the cost of forming the hollow longitudinal guide groove 224 and the radial rotation guide groove 225 on the connection sleeve 210 is lower than that of forming the guide groove on the connection structure 200, and after the connection sleeve 220 and the hand-held sleeve 210 are installed in coordination, guide grooves with the same function can be formed.

[0061] Furthermore, the connection sleeve 220 of the booster of the embodiment of the present application includes: a medicine chamber sleeve and a push rod sleeve 230. The outer wall of the medicine chamber sleeve is used to adapt and connect with the hand-held sleeve 210, the inner wall of the medicine chamber sleeve is used to adapt and connect with the outer wall of the medicine chamber 100, and the inner wall of the medicine chamber sleeve is also used to adapt and connect with the push rod sleeve 230. The following examples are listed for illustration:

[0062] In one of the application embodiments, see Figure 5 , Figure 6 as well as Figure 7 The medicine chamber sleeve of the booster is tubular, and the outer wall of the medicine chamber sleeve has radial convex ribs and axial convex ribs or radial grooves and axial grooves of the connecting sleeve 220. The second end of the medicine chamber sleeve has the first buckle structure of the above embodiment, and the second end of the medicine chamber sleeve has a guide groove, that is, the medicine chamber sleeve has all the features of the above connecting sleeve 220; in addition, the push rod sleeve 230 is tubular, and the push rod sleeve 230 is fixedly sleeved in the medicine chamber sleeve, for example, the push rod sleeve 230 is connected to the medicine chamber sleeve 220 in an integrated manner through the connecting portion 232. The push rod sleeve 230 has a third through hole 2311 that is matched and connected with the push rod body 310 of the push rod 300, and the third through hole 2311 is used to adapt and install the push rod body 310, so that the push rod body 310 simultaneously penetrates the first through hole 202 and the third through hole 2311, so that the sliding of the push rod 300 in the connecting structure 200 is more stable. It is worth noting that the outer wall diameter of the push rod sleeve 230 is smaller than the inner wall diameter of the medicine chamber 100, so that the push rod sleeve 230 can be extended into the medicine chamber 100 during the installation of the connecting structure 200 and the medicine chamber 100, and the second end face of the second end of the push rod sleeve 230 preferably just abuts against the first end face of the first end of the medicine bottle 400 (the first end of the medicine bottle 400 refers to the end with the movable rubber plug 420), and the push rod sleeve 230 serves to limit the upward movement of the medicine bottle 400, so that the medicine bottle 400 is more stably installed in the medicine chamber 100, and the push rod body 310 can enter the medicine bottle 400 more smoothly and accurately to abut or invade the movable rubber plug 420. Moreover, the push rod sleeve 230 extending into the inner wall of the medicine chamber 100 and the medicine chamber sleeve 220 located on the outer wall of the medicine chamber 100 further limit the deformation of the first end of the medicine chamber 100, so that the medicine chamber 100 cannot deform inward to cause the first snap structure and the second snap structure to be disconnected, thereby ensuring the connection reliability of the first snap structure and the second snap structure.

[0063] In another embodiment, see Figure 8 as well as Fig. 9The medicine chamber sleeve of the booster is tubular, and the outer wall of the medicine chamber sleeve has radial ribs and axial ribs or radial grooves and axial grooves of the connecting sleeve 220, and the second end of the medicine chamber sleeve has the first snap structure of the above-mentioned embodiment, and the second end of the medicine chamber sleeve has a guide groove, that is, the medicine chamber sleeve has all the features of the above-mentioned connecting sleeve 220; in addition, the push rod sleeve 230 is tubular, and the push rod sleeve 230 is sleeved in the medicine chamber sleeve, and the push rod sleeve 230 has a third through hole that is matched and connected with the push rod body 310 of the push rod 300, and the third through hole is used to adapt and install the push rod body 310, so that the push rod body 310 passes through the first through hole and the third through hole, so that the sliding of the push rod 300 in the connecting structure 200 is more stable. For example, the inner wall of the medicine chamber sleeve 220 of this embodiment has a third annular protrusion 227; the push rod sleeve 230 is tubular, the outer diameter of the push rod sleeve 230 is smaller than the inner diameter of the third annular protrusion 227, and the outer wall of the push rod sleeve 230 has a fourth annular protrusion 233, the outer diameter of the fourth annular protrusion 233 is larger than the inner diameter of the third annular protrusion 277, and the outer diameter of the fourth annular protrusion 233 is smaller than the inner diameter of the medicine chamber sleeve, so as to fix the fourth annular protrusion 233 between the third annular protrusion 227 and the first end face of the hand-held sleeve 210, so as to realize the fixed connection between the push rod sleeve 230 and the medicine chamber sleeve. The embodiment of the present application divides the connecting sleeve 220 into a medicine chamber sleeve and a push rod sleeve 230, and then cooperates and connects them through the above-mentioned fixed connection method, which can avoid too many characteristic detail structures being concentrated on a single connecting sleeve 220, thereby resulting in excessive production costs of a single component. Similarly, the outer wall diameter of the push rod sleeve 230 implemented in the present application is smaller than the inner wall diameter of the medicine chamber 100, so that the push rod sleeve 230 can be extended into the medicine chamber 100 during the installation process of the connecting structure 200 and the medicine chamber 100, and the second end face of the second end of the push rod sleeve 230 preferably just abuts against the first end face of the first end of the medicine bottle 400 (the first end of the medicine bottle 400 refers to the end with the movable rubber plug 420), and the push rod sleeve 230 serves to limit the upward movement of the medicine bottle 400, so that the medicine bottle 400 is more stably installed in the medicine chamber 100, and the push rod body 310 can enter the medicine bottle 400 more smoothly and accurately to abut or invade the movable rubber plug 420. Moreover, the push rod sleeve 230 extending into the inner wall of the medicine chamber 100 and the medicine chamber sleeve 220 located on the outer wall of the medicine chamber 100 further limit the deformation of the first end of the medicine chamber 100, so that the medicine chamber 100 cannot deform inward to cause the first snap structure and the second snap structure to be disconnected, thereby ensuring the connection reliability of the first snap structure and the second snap structure.

[0064] In another embodiment, please continue to refer to Figure 8 as well as Fig. 9The booster of the embodiment of the present application further includes: a coil spring 600. The difference between the present embodiment and the above embodiment is that when the fourth annular protrusion 233 is restricted between the third annular protrusion 227 and the first end surface of the hand-held cover 210, there is a preset distance between the third annular protrusion 227 and the first end surface of the hand-held cover 210, so that the fourth annular protrusion 233 can slide within the preset distance. In other words, the push rod cover 230 can slide back and forth within the medicine chamber cover 220 for a preset distance. At this time, the push rod 300 is adapted to the first through hole 202 and can slide through the hand-held cover 210, and the push rod 300 is adapted to the third through hole 2311 and can slide through the push rod cover 230. The preload spring 600 is disposed outside the push rod 300, one end of the preload spring 600 abuts against the third annular protrusion 231 on the inner wall of the push rod sleeve 230, and the other end of the preload spring 600 abuts against the first end surface of the hand-held sleeve 210, so that the push rod sleeve 230 keeps the fourth annular protrusion 233 abutting against the third annular protrusion 227 under the preload force of the preload spring 600. The push rod sleeve 230 of the booster of the embodiment of the present application has a certain adjustment ability in the length direction, so that the medicine chamber 100 can be adapted to install medicine bottles of different lengths. That is to say, when the connection structure 200 of the embodiment of the present application is connected to the medicine chamber 100, the push rod sleeve 230 in the connection structure 200 can be adapted to make the second end face of the push rod sleeve 230 abut the first end face of the first end of the medicine bottle 400 under the action of the preload force of the preload spring 600 (the first end of the medicine bottle 400 refers to the end with the movable rubber stopper 420), and the push rod sleeve 230 plays a role in limiting the upward movement of the medicine bottle 400, so that the medicine bottle 400 is stably installed in the medicine chamber 100.

[0065] Based on the understanding of the above embodiments, please refer to Fig.10 , Fig.11 , Fig.12 as well as Fig.13 , when the push rod body 310 of the push rod 300 in the booster of the embodiment of the present application is circular in cross section, and the hand-held cover 210 is connected to the medicine chamber cover 220 by threads, the inner wall of the first end surface of the hand-held cover 210 may be provided with a first ratchet 204, and the first end of the push rod cover 230 may be provided with a second ratchet 234 adapted to the first ratchet 204. The embodiment of the present application can achieve: when a medicine bottle 400 is installed in the medicine chamber 100, the connection structure 200 cannot be disassembled after being connected to the medicine chamber 100; when a medicine bottle 400 is not installed in the medicine chamber 100, the connection structure 200 is disassembled after being connected to the medicine chamber 100; to avoid waste caused by mistakenly connecting the medicine chamber 100 to the connection structure 200 when the medicine bottle 400 is not installed in the medicine chamber 100. Examples are as follows:

[0066] The hand-held cover 210 of the booster of this embodiment is tubular, and the inner wall of the first end of the hand-held cover 210 is provided with a thread groove, the first end face of the hand-held cover 210 has the first through hole 202, and the inner wall of the first end face of the hand-held cover 210 is provided with a first ratchet 204; the medicine chamber cover 220 is tubular, and the outer wall of the first end of the medicine chamber cover 220 has a thread tooth adapted to the thread groove, and the second end of the medicine chamber cover 220 has the first buckle structure, and in this embodiment, the first buckle structure of the medicine chamber cover 220 is a ratchet hole, the second end of the medicine chamber cover 220 has a guide groove, and the inner wall of the medicine chamber cover 220 has a first annular protrusion 228; in addition, the push rod cover 2 30 is tubular, the outer diameter of the push rod sleeve 230 is smaller than the inner diameter of the first annular protrusion 228, and the outer wall of the first end of the push rod sleeve 230 has a second annular protrusion 236, the outer diameter of the second annular protrusion 236 is larger than the inner diameter of the first annular protrusion 228 and smaller than the inner diameter of the medicine chamber sleeve 230, so as to limit the second annular protrusion 236 between the first annular protrusion 228 and the first end face of the hand-held sleeve 210, and there is a preset distance between the first annular protrusion 228 and the first end face of the hand-held sleeve 210, and the second annular protrusion 236 can slide within the preset distance, that is, the push rod sleeve 230 can be slidably arranged in the medicine chamber sleeve 220. In addition, the first annular protrusion 228 has a notch 229, and a rib 232 is provided on the outer wall surface of the push rod sleeve 230 corresponding to the notch 229. When the second annular protrusion 236 is fixed and restricted between the inner end surface of the first end of the hand-held sleeve 210 and the first annular protrusion 228, the rib 232 is just located in the notch 229, thereby limiting the rotational freedom of the push rod sleeve 230, so that the push rod sleeve 230 can only slide within a preset distance length in the medicine chamber sleeve 220 but cannot rotate. The preload spring 600 is disposed on the outer surface of the push rod body 310 of the push rod 300, and one end of the preload spring 600 abuts against the third annular protrusion 235 on the inner wall of the push rod sleeve 230, and the other end of the preload spring 600 abuts against the inner wall of the first end surface of the hand-held sleeve 210, so that the push rod sleeve 230 keeps the second annular protrusion 236 abutting against the first annular protrusion 228 under the preload force of the preload spring 600. In addition, the first end surface of the push rod sleeve 230 is provided with a first ratchet 234, and the second end surface of the push rod sleeve 230 can extend into the medicine chamber 100; the inner wall of the first end surface of the hand-held sleeve 210 is provided with a second ratchet 204 that matches the first ratchet 234. When the connection structure 200 is not connected to the medicine chamber 100, the third annular protrusion 235 of the push rod sleeve 230 is subjected to the pre-tightening force of the pre-tightening spring 600 to keep the second annular protrusion 236 abutting against the first annular protrusion 228, and the first ratchet 234 of the first end of the push rod sleeve 230 is at a certain distance from the second ratchet 204 of the hand-held sleeve 210. At this time, since the hand-held sleeve 210 and the medicine chamber sleeve 220 are threadedly connected, the hand-held sleeve 210 and the medicine chamber sleeve 220 can be separated or installed by rotation.

[0067] When the connecting structure 200 is connected to the medicine chamber 100 installed with the medicine bottle 400, since the outer wall diameter of the push rod sleeve 230 of the booster in this embodiment is smaller than the inner wall diameter of the medicine chamber 100, the push rod sleeve 230 can be extended into the medicine chamber 100 during the installation of the connecting structure 200 and the medicine chamber 100, and the second end face of the second end of the push rod sleeve 230 preferably just abuts against the first end face of the first end of the medicine bottle 400 (the first end of the medicine bottle 400 refers to the end with the movable rubber plug 420), and as the first snap-fit ​​structure of the medicine chamber sleeve 220 in the connecting structure 200 and the second snap-fit ​​structure of the medicine chamber 100 are matched and connected, the connecting structure 200 will gradually approach the medicine chamber 100 and achieve a matched connection, and the push rod sleeve 230 of this embodiment is drug-received. The bottle 400 is gradually squeezed to overcome the preload force of the preload spring 600, so that the coil spring 600 is further compressed, and finally the first ratchet tooth 234 of the push rod sleeve 600 is matched with the second ratchet tooth 204 of the hand-held sleeve 210. At this time, if the hand-held sleeve 210 is threadedly connected to the medicine chamber sleeve 220, the matched connection between the first ratchet tooth 234 and the second ratchet tooth 204 will limit the rotation of the hand-held sleeve 210 relative to the medicine chamber sleeve 220 in one rotation direction. The restricted rotation direction is exactly the threaded rotation direction of the hand-held sleeve 210 from the medicine chamber sleeve 220. It can be seen that when the medicine bottle 400 is installed in the medicine chamber 100, the connecting structure 200 cannot be disassembled after being connected to the medicine chamber 100, thereby ensuring the disposable use of the booster placed in the medicine bottle 400.

[0068] When the connecting structure 200 is connected to the medicine chamber 100 without the medicine bottle 400 installed, the push rod sleeve 230 is not squeezed by the medicine bottle 400, and the third annular protrusion 235 of the push rod sleeve 230 is still kept in contact with the first annular protrusion 228 by the preload force of the preload spring 600, and the first ratchet tooth 234 at the first end of the push rod sleeve 230 and the second ratchet tooth 204 of the hand-held sleeve 210 are still at a certain distance. Then, the hand-held cover 210 and the medicine chamber cover 220 can be separated by rotation. When the medicine chamber cover 220 loses the peripheral protection of the hand-held cover 210, the ratchet hole on the medicine chamber cover 220 as the first buckle structure is exposed. At this time, the ratchet of the second buckle structure connected with the ratchet hole can be manually disconnected, and then the medicine chamber cover 220 can be separated from the medicine chamber 100. Then, the hand-held cover 210 and the medicine chamber cover 220 are threadedly connected, and the connection structure 200 and the medicine chamber 100 are separated. It can be seen that when the medicine bottle 400 is not installed in the medicine chamber 100, the connection structure 200 is detachable after being connected to the medicine chamber 100 to avoid waste caused by mistakenly connecting the medicine chamber 100 with the connection structure 200 when the medicine bottle 400 is not loaded into the medicine chamber 100.

[0069] It should be noted that the booster of the embodiment of the present application may also include: a friction sleeve (not shown in the figure). The friction sleeve has a fourth through hole that is connected to the push rod, and the friction sleeve is arranged outside the push rod body 310 of the push rod 300 and fixed inside the push rod sleeve. The friction sleeve and the surface of the push rod body 310 have a friction with a preset friction coefficient, so that the booster of the embodiment of the present application can achieve different friction settings by replacing the friction sleeve.

[0070] The above contents are descriptions of the present application in combination with specific embodiments, and it cannot be considered that the specific implementation of the present application is limited to these embodiments. For ordinary technicians in the technical field to which the present application belongs, several changes and substitutions can be made without departing from the concept of the present application, which should be considered to belong to the protection scope of the present application.

Claims

1. A booster, characterized in that: include: Push rod, connecting structure, medicine chamber; The connecting structure is tubular, the first end surface of the connecting structure has a first through hole that is matched and connected with the push rod, and the second end of the connecting structure has a first buckle structure; The medicine bin is tubular, the first end of the medicine bin has a second buckle structure adapted to the first buckle structure, the second end of the medicine bin has a needle connection structure, and the first buckle structure and the second buckle structure form a non-detachable connection structure when they are matched and connected; The push rod is adapted to the first through hole and can slide through and connect to the connection structure.

2. The booster according to claim 1, characterized in that: The first buckle structure is a radial buckle structure, and the second end of the connecting structure has a guide groove; The first end of the medicine bin is provided with a guide block adapted to the guide groove.

3. The booster according to claim 2, characterized in that: The connection structure comprises: a hand-held sleeve and a connection sleeve; The hand-held cover is tubular, the first end surface of the hand-held cover has the first through hole, and the inner wall of the hand-held cover has a radial groove and an axial groove; The connecting sleeve is tubular and can be nested in the hand-held sleeve. The outer wall of the connecting sleeve has radial ribs adapted to the radial grooves and axial ribs adapted to the axial grooves. The second end of the connecting sleeve has the first buckle structure and the second end of the connecting sleeve has the guide groove. or, The hand-held cover is tubular, the first end surface of the hand-held cover has the first through hole, and the inner wall of the hand-held cover has radial convex ribs and axial convex ribs; The connecting sleeve is tubular and can be nested in the hand-held sleeve. The outer wall of the connecting sleeve has radial grooves that match the radial ribs and axial grooves that match the axial ribs. The second end of the connecting sleeve has the first snap-fit ​​structure, and the second end of the connecting sleeve has the guide groove.

4. The booster according to claim 3, characterized in that: The connecting sleeve comprises: a medicine chamber sleeve and a push rod sleeve; The medicine chamber cover is tubular, the outer wall of the medicine chamber cover has the radial convex ribs and the axial convex ribs or the radial grooves and the axial grooves, the second end of the medicine chamber cover has the first buckle structure, and the second end of the medicine chamber cover has the guide groove; The push rod sleeve is tubular, fixedly connected in the medicine chamber sleeve, and has a third through hole that cooperates with the push rod.

5. The booster according to claim 3, characterized in that: The connecting sleeve comprises: a medicine chamber sleeve and a push rod sleeve; The medicine chamber cover is tubular, the outer wall of the medicine chamber cover has the radial convex rib and the axial convex rib or the radial groove and the axial groove, the second end of the medicine chamber cover has the first buckle structure, the second end of the medicine chamber cover has the guide groove, and the inner wall of the medicine chamber cover has a third annular protrusion; The push rod sleeve is tubular, and its outer diameter is smaller than the inner diameter of the third annular protrusion. The outer wall of the push rod sleeve has a fourth annular protrusion, and the outer diameter of the fourth annular protrusion is larger than the inner diameter of the third annular protrusion and smaller than the inner diameter of the medicine chamber sleeve, so as to fix the fourth annular protrusion between the third annular protrusion and the first end face of the hand-held sleeve. The push rod sleeve has a third through hole that cooperates with the push rod.

6. The booster according to claim 4 or 5, characterized in that: Also includes: Friction sleeve; The friction sleeve has a fourth through hole that is matched with the push rod. The friction sleeve is arranged outside the push rod and fixed inside the push rod sleeve.

7. The booster according to claim 1, characterized in that: The second end of the push rod is detachably connected with a rubber pad, a metal puncture hook or a metal threaded drill bit.

8. The booster according to claim 1, characterized in that: The medicine chamber has an observation window and scale values.

9. The booster according to claim 1, characterized in that: Also includes: Cartridges with pre-set doses of liquid medicine; The cartridge bottle is adapted to be installed in the medicine bin, and one end of the push rod abuts against the movable rubber stopper of the cartridge bottle.

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