Automatic vaccine injection device

Abstract

The invention relates to the technical field of medical instruments, in particular to an automatic vaccine injection device which comprises a placing table for placing arms of a patient, a baffle for shielding sight of the patient is fixedly connected to the placing table, and an extension mechanism which is pushed by the hands of the patient to move is arranged on the placing table. The extension mechanism comprises a gripping block in sliding fit with the placement table, a plurality of cushion blocks used for supporting the arms of the patient are arranged on the placement table, and pressure sensors used for measuring real-time pressure data applied to the arms of the patient are fixedly connected to the tops of the cushion blocks; an injection mechanism for automatically replacing vaccine bottles is arranged on one side of the placement table, and a control panel is fixedly connected to the side, away from the injection mechanism, of the baffle and used for controlling the injection mechanism to work based on real-time pressure data; the arm length of different patients can be automatically adapted and fixed, and the risk in the continuous injection process is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly to an automatic vaccine injection device. Background Art

[0002] Vaccination is one of the most effective and economical public health intervention measures for preventing infectious diseases. Vaccines simulate specific components of pathogens and safely stimulate the human immune system to produce memory cells to avoid illness or reduce symptoms. For example, the COVID-19 vaccine has significantly reduced the number of severe cases and deaths. At the same time, when a sufficient number of people are vaccinated, the transmission chain of pathogens in the population will be cut off (such as the polio vaccine and the smallpox vaccine), indirectly protecting those who have not been vaccinated, such as newborns and immunocompromised patients.

[0003] In the traditional vaccine vaccination process, manual vaccination is usually carried out in sequence. The manual work intensity is high, and for large-scale vaccination, a large number of medical staff are required. Therefore, a device can be used to replace manual work for repeated vaccinations. For example, the patent with the Chinese patent publication number CN113289158B discloses an automatic vaccine injection device that can program non-core injection work and effectively reduce the workload of medical staff. However, due to the different body shapes of different people and the use of fixed-point injection methods, there may be problems with injection deviation. At the same time, for children or groups sensitive to the fear of injections, they may move around due to fear, exacerbating the problem of injection site deviation and also increasing the risk of needle damage.

[0004] In addition, during the frequent use of the device, there may be a risk of cross-infection during the human-machine contact process. Therefore, the present invention provides an automatic vaccine injection device that can automatically adapt and fix the arm lengths of different patients and reduce the risks during continuous injections. Summary of the Invention

[0005] To solve the above problems, the present invention provides an automatic vaccine injection device that can automatically adapt and fix the arm lengths of different patients and reduce the risks during continuous injections.

[0006] To achieve the above object, the technical solution of the present invention is as follows: An automatic vaccine injection device includes a placement table for placing a patient's arm. A baffle for blocking the patient's line of sight is fixedly connected to the placement table. An extension mechanism that moves based on the patient's hand push is provided on the placement table. The extension mechanism includes a grip block that is slidably matched with the placement table. A number of cushion blocks for supporting the patient's arm are provided on the placement table, and pressure sensors for measuring the real-time pressure data applied by the patient's arm are fixedly connected to the tops of the cushion blocks.

[0007] On one side of the placement table, there is an injection mechanism for automatically replacing the vaccine vial. On the side of the baffle away from the injection mechanism, there is a control panel fixedly connected, and the control panel is used to control the injection mechanism to work based on real-time pressure data.

[0008] Furthermore, on the baffle, there is a placement channel for the patient's arm to extend in or out. In the placement channel, there are several tapered support blocks rotatably fitted, and the support blocks are arranged in a ring centered on the placement channel. At the end of the support block away from the baffle, there is a rolling ball rotatably fitted.

[0009] Furthermore, the extension mechanism also includes a support rod fixedly connected to the gripping block. The support rod is located above the cushion block. On both sides of the cushion block and the support rod, there are also sliding grooves, and the sliding grooves are opened on the placement table;

[0010] In the sliding groove, a third spring is slidably fitted. The third spring is located on the side of the gripping block away from the baffle; in the sliding groove, there is also a pressing block slidably fitted, and the pressing block is located between the gripping block and the baffle;

[0011] A fourth electric push rod is slidably fitted in the placement table. One end of the fourth electric push rod is fixedly connected to the pressing block, and the pushing direction of the fourth electric push rod is consistent with the length direction of the sliding groove.

[0012] Furthermore, the injection mechanism includes a placement cylinder. The vaccine vial is located in the placement cylinder. On the side of the baffle close to the gripping block, there is a fixed ring fixedly connected. The placement cylinder is located in the fixed ring, and the placement cylinder is snap-fitted with the fixed ring;

[0013] In the placement cylinder, several limiting pieces are rotatably fitted. The limiting pieces are symmetrically arranged centered on the placement cylinder, and the limiting pieces are arranged in sequence along the length direction of the placement cylinder. The distance between adjacent limiting pieces is the same, and a first spring is fixedly connected between each limiting piece and the placement cylinder;

[0014] At the bottom of the placement cylinder, there is a replacement opening for taking out the vaccine vial. At the bottom of the placement cylinder, there is a liquid inlet block fixedly connected. In the liquid inlet block, a first slider is slidably fitted. A first electric push rod is fixedly connected between the first slider and the bottom of the placement cylinder. On the side of the first slider close to the placement cylinder, there is a first puncture tube fixedly connected;

[0015] At the bottom of the liquid inlet block, there is also an injection block connected. In the injection block, a second slider is slidably fitted. At the end of the second slider away from the liquid inlet block, there is a second puncture tube fixedly connected; on the side of the second slider away from the second puncture tube, there is a second electric push rod fixedly connected to the inner wall of the injection block, and a telescopic connecting tube is connected between the second puncture tube and the liquid inlet block. The first electric push rod and the second electric push rod are electrically connected to the control panel;

[0016] There is an exchange port connected between the liquid inlet block and the injection block, and the exchange port is located above the connecting tube;

[0017] When the first slider moves to the closest point to the placement cylinder, the first puncture tube is located in the placement cylinder, and the vaccine bottle in the placement cylinder is respectively against the first puncture tube and the limiting plate; when the first slider moves to the farthest point from the placement cylinder, the first puncture tube is located in the liquid inlet block; when the second slider moves to the farthest point from the liquid inlet block, the second puncture tube is located outside the injection block; when the second slider moves to the closest point to the liquid inlet block, the second puncture tube is located in the injection block.

[0018] Furthermore, the second puncture tube is detachably connected to the second slider, an arc-shaped clamping block is provided outside the second puncture tube, an end of the clamping block away from the second puncture tube is hinged to the first rod, an end of the first rod away from the second puncture tube is hinged to the injection block, a second rod is hinged to the first rod, an end of the second rod away from the first rod is hinged to the moving block, and the moving block is slidably matched with the injection block;

[0019] A third electric push rod is fixedly connected to one side of the moving block away from the first rod, and the third electric push rod is fixedly connected to the outer wall of the injection block; an accumulation block and a shedding groove are arranged between adjacent clamping blocks, and the accumulation block and the shedding groove are symmetrically arranged with the injection block as the center;

[0020] The second puncture tube is located in the accumulation block, and the second puncture tube is slidably matched with the accumulation block; an extension block is slidably matched between the accumulation block and the injection block, and one end of the extension block away from the accumulation block is fixedly connected to the second slider;

[0021] When the second slider is located directly below the accumulation block, the extension block closes the interior of the accumulation block; when the second slider is offset from the accumulation block, the extension block opens the interior of the accumulation block; and when the output end of the third electric push rod reaches the shortest extension length, the clamping block separates from the second puncture tube; when the output end of the third electric push rod reaches the longest extension length, the clamping block abuts against the second puncture tube.

[0022] Furthermore, a plurality of electromagnets for adsorbing the limiting plates are fixedly connected in the placement tube, the electromagnets are electrically connected to the control panel, and the positions of the electromagnets correspond to those of the first springs.

[0023] Furthermore, a push plate is rotatably provided in the placement tube, the push plate corresponds to the replacement port, and an opening and closing electromagnet is provided corresponding to the push plate, and a second spring is provided between the push plate and the placement tube;

[0024] A receiving ring for receiving the vaccine bottle is fixedly connected to the end of the pushing plate away from the placing tube; when the second spring is squeezed by the vaccine bottle and is in a compressed state, the opening and closing electromagnet is started, and the receiving ring is located above the first puncture tube; when the second spring is in a normal state, the opening and closing electromagnet is closed, and the receiving ring is located between the replacement port and the first puncture tube.

[0025] Furthermore, the side of the placement cylinder close to the replacement port is fixedly connected to the receiving plate, and the side of the receiving plate away from the replacement port is lower than the side of the receiving plate close to the replacement port.

[0026] Further, a floating block is fitted into the liquid inlet block with a clearance fit. One end of the floating block close to the exchange port is slidably fitted with the liquid inlet block, and a circulation hole is formed at the center of the floating block.

[0027] When the floating block is at the highest point close to the first slider, the floating block coincides with the exchange port.

[0028] Further, a first pressing block is fixedly connected to the bottom of the gripping block, and a second pressing block is fixedly connected to the bottom of the pressing block. The first pressing block and the second pressing block are respectively slidably fitted with the placing table.

[0029] On one side of the first pressing block away from the third spring, there is a first water storage bag for storing disinfectant solution. On one side of the second pressing block away from the fourth electric push rod, there is a second water storage bag for storing disinfectant solution. The first water storage bag is communicated with both sides of the gripping block through a water pipe, and the second water storage bag is communicated with one side of the pressing block close to the baffle through a water pipe.

[0030] When the third spring is in its normal state, the first pressing block abuts against the first water storage bag; when the output end of the fourth electric push rod is at its longest extended length, the second pressing block abuts against the second water storage bag.

[0031] Adopting the above scheme has the following beneficial effects:

[0032] 1. In this scheme, the baffle is used to block the patient's line of sight, so as to reduce the fear of the patient during the injection process, improve the stability of the injection position during the injection process, and further reduce the injection displacement error caused by random movement.

[0033] 2. In this scheme, during use, the patient's hand pushes the gripping block to move to adapt to the placement needs of different patients' arms; based on the consistency of the real-time pressure data applied to the pressure sensor by different patients' arm lengths, it is determined whether the patient's arm is in a horizontal placement state, and then the corresponding injection mechanism is controlled to perform the injection work, so as to facilitate the injection with the patient's arm in the same inclined state.

[0034] 3. In this scheme, during the injection process, based on the movement of the patient's arm and the working state of the injection mechanism, the vaccine injection and drug replacement needs are automatically completed, so as to meet the need for continuous injection and improve work efficiency.

[0035] The additional aspects and advantages of the present invention will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is an axonometric view of an embodiment of the automatic vaccine injection device of the present invention;

[0037] Figure 2Top view of the embodiment of the automatic injection device for the vaccine of the present invention;

[0038] Figure 3 is Figure 2 Schematic cross-sectional view taken along line A-A in

[0039] Figure 4 is Figure 2 Schematic cross-sectional view taken along line C-C in

[0040] Figure 5 is Figure 3 Enlarged schematic view of the partial area D in

[0041] Figure 6 is Figure 3 Enlarged schematic view of the partial area E in

[0042] Figure 7 is Figure 4 Enlarged schematic view of the partial area F in

[0043] Figure 8 is Figure 3 Enlarged schematic view of the partial area O in

[0044] Figure 9 is Figure 8 Partial cross-sectional schematic view taken along line G-G in

[0045] Figure 10 in Figure 2 Schematic cross-sectional view taken along line B-B in

[0046] The reference signs in the drawings of the specification include: 1, placement table; 11, support frame; 12, sliding groove; 13, cushion block; 2, baffle; 21, placement channel; 22, support block; 23, ball; 24, fixing ring; 3, gripping block; 31, support rod; 32, pressing block; 33, third spring; 34, first water storage bladder; 35, second water storage bladder; 36, water pipe; 37, first pressing block; 38, second pressing block; 4, placement cylinder; 41, limiting piece; 42, electromagnet; 43, first spring; 5, replacement opening; 51, receiving plate; 52, pushing plate; 53, second spring; 54, receiving ring; 6, liquid inlet block; 61, first slider; 62, first electric push rod; 63, first puncture tube; 64, floating block; 7, injection block; 71, second slider; 72, second puncture tube; 73, second electric push rod; 74, connecting pipe; 75, exchange port; 76, extension block; 8, clamping block; 81, first rod; 82, second rod; 83, moving block; 84, third electric push rod; 85, storage block; 86, shedding groove. Detailed implementation manners

[0047] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative work shall fall within the protection scope of the present invention.

[0048] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0049] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0050] The following is a further detailed description through specific embodiments:

[0051] Embodiment 1:

[0052] As shown in the attached Figures 1 to 10 figure: An automatic vaccine injection device includes a placement table 1 for placing a patient's arm. A support frame 11 for support is fixedly connected to the bottom of the placement table 1. A baffle 2 for blocking the patient's line of sight is fixedly connected to the placement table 1. A placement channel 21 for the patient's arm to extend in or out is opened on the baffle 2.

[0053] A stretching mechanism that moves based on the patient's hand push is provided on the placement table 1. The stretching mechanism includes a grasping block 3 that is slidably matched with the placement table 1. A number of cushion blocks 13 for supporting the patient's arm are provided on the placement table 1. Pressure sensors for measuring the real-time pressure data applied by the patient's arm are fixedly connected to the tops of the cushion blocks 13.

[0054] The extension mechanism further includes a support rod 31 fixedly connected to the grasping block 3. The support rod 31 is located above the cushion block 13. Slide grooves 12 are provided on both sides of the cushion block 13 and the support rod 31, and the slide grooves 12 are formed in the placement table 1. A third spring 33 is slidably fitted in the slide groove 12, and the third spring 33 is located on the side of the grasping block 3 away from the baffle 2. A pressing block 32 is also slidably fitted in the slide groove 12, and the pressing block 32 is located between the grasping block 3 and the baffle 2. A fourth electric push rod is slidably fitted in the placement table 1, one end of the fourth electric push rod is fixedly connected to the pressing block 32, and the pushing direction of the fourth electric push rod is consistent with the length direction of the slide groove 12.

[0055] An injection mechanism for automatically replacing the vaccine vial is provided on one side of the placement table 1. A control panel (not shown in the figure) is fixedly connected to the side of the baffle 2 away from the injection mechanism. The control panel is used to perform consistency comparison based on the real-time pressure data, and controls the injection mechanism to work when the real-time pressure data are consistent.

[0056] The injection mechanism includes a placement cylinder 4. The vaccine vial is located in the placement cylinder 4. A fixing ring 24 is fixedly connected to the side of the baffle 2 close to the grasping block 3. The placement cylinder 4 is located within the fixing ring 24, and the placement cylinder 4 is snap-fitted with the fixing ring 24. A plurality of limiting pieces 41 are rotatably fitted in the placement cylinder 4. The limiting pieces 41 are symmetrically arranged with the placement cylinder 4 as the center, and the limiting pieces 41 are arranged in sequence along the length direction of the placement cylinder 4. The distance between adjacent limiting pieces 41 is the same, and a first spring 43 is fixedly connected between each limiting piece 41 and the placement cylinder 4.

[0057] A replacement opening 5 for taking out the vaccine vial is formed at the bottom of the placement cylinder 4. A liquid inlet block 6 is fixedly connected to the bottom of the placement cylinder 4. A first slider 61 is slidably fitted in the liquid inlet block 6. A first electric push rod 62 is fixedly connected between the first slider 61 and the bottom of the placement cylinder 4. A first puncture tube 63 is fixedly connected to the side of the first slider 61 close to the placement cylinder 4. The bottom of the liquid inlet block 6 is also communicated with an injection block 7. A second slider 71 is slidably fitted in the injection block 7. A second puncture tube 72 is fixedly connected to the end of the second slider 71 away from the liquid inlet block 6. A second electric push rod 73 is fixedly connected to the side of the second slider 71 away from the second puncture tube 72, and the second electric push rod 73 is fixedly connected to the inner wall of the injection block 7. A telescopic connecting tube 74 is communicated between the second puncture tube 72 and the liquid inlet block 6. One end of the connecting tube 74 away from the second puncture tube 72 is communicated with the bottom of the liquid inlet block 6. The first electric push rod 62 and the second electric push rod 73 are electrically connected to the control panel. The control panel is also used to adjust and control the first electric push rod 62 and the second electric push rod 73 based on a pre-recorded control program.

[0058] There is a communication port 75 between the liquid inlet block 6 and the injection block 7. The communication port 75 is located above the connecting pipe 74. When the first slider 61 moves to the closest point to the placement cylinder 4, the first puncture tube 63 is inside the placement cylinder 4, and the vaccine bottles inside the placement cylinder 4 are respectively in contact with the first puncture tube 63 and the limiting piece 41. When the first slider 61 moves to the farthest point from the placement cylinder 4, the first puncture tube 63 is inside the liquid inlet block 6. When the second slider 71 moves to the farthest point from the liquid inlet block 6, the second puncture tube 72 is outside the injection block 7. When the second slider 71 moves to the closest point to the liquid inlet block 6, the second puncture tube 72 is inside the injection block 7.

[0059] A number of electromagnets 42 for adsorbing the limiting piece 41 are fixedly connected inside the placement cylinder 4. The electromagnets 42 are electrically connected to the control panel, and the positions of the electromagnets 42 correspond to those of the first springs 43. The control panel is used to record and store the positions of the electromagnets 42, and control the start and stop of the electromagnets 42 based on the position sequence of the electromagnets 42.

[0060] The specific implementation process is as follows:

[0061] First, the sight of the patient is blocked by the baffle 2 to reduce the fear of the patient during the injection process, improve the stability of the injection position during the injection process, and thus reduce the injection displacement error caused by random movement.

[0062] The patient passes through the baffle 2 through the placement channel 21. When the patient holds the support rod 31 with the hand and drives the gripping block 3 to move, the movement of the gripping block 3 is restricted by the sliding groove 12 to ensure the consistency of the direction during the sliding of the gripping block 3. The gripping block 3 pushes the third spring 33 to be compressed, so that after the injection is completed, the compressed third spring 33 is used to push the gripping block 3 to reset.

[0063] At the same time, the pressing block 32 is used to block the patient's arm, so that the whole patient's arm fits on the cushion block 13. The fourth electric push rod drives the pressing block 32 to move in the sliding groove 12, so as to control the movement of the pressing block 32 according to the injection state, facilitating the subsequent injection. Then, based on the consistency of the real-time pressure data applied to the pressure sensor by the arm lengths of different patients, it is determined whether the patient's arm is in a horizontal placement state, and then the corresponding injection mechanism is controlled to perform the injection work, so that the injection is carried out with the patient's arm in the same inclined state.

[0064] When the vaccine bottles are installed inside the placement tube 4, the limit plates 41 are used to support the vaccine bottles of different heights to facilitate the separation of the vaccine bottles of different heights; the first electric push rod 62 drives the first slider 61 to move to push the first puncture tube 63 on the first slider 61 to contact the vaccine bottle in the placement tube 4, and the arc-shaped limit plate 41 is used to support the top of the vaccine bottle to improve the stability of the first puncture tube 63 during the puncture process, thereby facilitating the guidance of the liquid in the vaccine bottle through the first puncture tube 63.

[0065] At the same time, during the process of the first puncture tube 63 puncturing the vaccine bottle, the vaccine bottle is kept fixed to reduce the vaccine bottle from falling out of the replacement port 5; while the first electric push rod 62 is used to drive the first puncture tube 63 to loosen the fixation on the vaccine bottle, the first slider 61 pressurizes the inside of the liquid inlet block 6 so as to inject the liquid in the liquid inlet block 6 into the second puncture tube 72 through the connecting tube 74 to achieve the injection of the liquid medicine; during the process of the second electric push rod 73 driving the second slider 71 to move, the second puncture tube 72 is shielded by the injection block 7 to reduce the accidental contact between the second puncture tube 72 and the outside world; during the process of the second electric push rod 73 pushing the second puncture tube 72 out, the second slider 71 is used to suck the inside of the injection block 7 to reduce the negative pressure inside the liquid inlet block 6 so as to facilitate the liquid in the vaccine bottle to enter the liquid inlet block 6.

[0066] During the falling process of the vaccine bottle, the working condition of the electromagnet 42 is controlled through the control panel, and the electromagnet 42 is started in sequence from bottom to top. The suction force of the electromagnet 42 is used to control the limit plate 41 to rotate away from the center of the placement tube 4. The suction force of the electromagnet 42 is used to overcome the resistance of the first spring 43, so that the vaccine bottle placed on the limit plate 41 falls due to gravity, and then the limit plate 41 is reset by the reset first spring 43 to continue to maintain the support of the vaccine bottle by the limit plate 41; the vaccine bottle is received and processed by the limit plate 41 and the first spring 43 of the next layer, so as to reduce the possible damage to the vaccine bottle by utilizing the elastic release of the spring.

[0067] Embodiment 2:

[0068] The difference from Example 1 is that a number of conical support blocks 22 are rotatably engaged in the placement channel 21, and a torsion spring support is provided at the rotation point between the support block 22 and the baffle 2. One end of the torsion spring is fixedly connected to the support block 22, and one end of the torsion spring is fixedly connected to the baffle 2. The support blocks 22 are arranged in a ring shape with the placement channel 21 as the center, and a ball 23 is rotatably engaged at one end of the support block 22 away from the baffle 2.

[0069] The specific implementation process is as follows: when the patient extends his arm through the placement channel 21 into the placement channel 21, the support block 22 is rotated around the baffle 2 to adapt to the support of different arm diameters, and the support block 22 is used to open the clothes that may exist around the arm to facilitate subsequent injections; at the same time, the ball 23 is used to reduce the friction between the support block 22 and the arm, so that the support block 22 can move on the arm more easily.

[0070] Embodiment 3:

[0071] The difference from Example 2 is that the second puncture tube 72 is detachably connected to the second slider 71, and the second puncture tube 72 is provided with an arc-shaped clamping block 8 outside. The end of the clamping block 8 away from the second puncture tube 72 is hinged with a first rod 81, and the end of the first rod 81 away from the second puncture tube 72 is hinged with the injection block 7, and the second rod 82 is hinged on the first rod 81, and the end of the second rod 82 away from the first rod 81 is hinged with a moving block 83, and the moving block 83 is slidably matched with the injection block 7; the side of the moving block 83 away from the first rod 81 is fixedly connected to the third electric push rod 84, and the third electric push rod 84 is fixedly connected to the outer wall of the injection block 7; accumulation blocks 85 and shedding grooves 86 are provided between adjacent clamping blocks 8, and the accumulation blocks 85 and the shedding grooves 86 are symmetrically arranged with the injection block 7 as the center. The second puncture tube 72 is located in the accumulation block 85 and is slidably matched with the accumulation block 85; an extension block 76 is slidably matched between the accumulation block 85 and the injection block 7, and the end of the extension block 76 away from the accumulation block 85 is fixedly connected to the second slider 71.

[0072] When the second slider 71 is located directly below the accumulation block 85, the extension block 76 closes the interior of the accumulation block 85; when the second slider 71 is offset from the accumulation block 85, the extension block 76 opens the interior of the accumulation block 85; and when the output end of the third electric push rod 84 reaches the shortest extension length, the clamping block 8 is separated from the second puncture tube 72; when the output end of the third electric push rod 84 reaches the longest extension length, the clamping block 8 is against the second puncture tube 72.

[0073] The specific implementation process is as follows: when the third electric push rod 84 drives the moving block 83 to move, when the output end of the third electric push rod 84 reaches the shortest extension length, the moving block 83 drives the first rod 81 to move to the side away from the second puncture tube 72 through the second rod 82, so that the clamping block 8 is separated from the second puncture tube 72; when the output end of the third electric push rod 84 reaches the longest extension length, the moving block 83 drives the first rod 81 to move to the side close to the second puncture tube 72 through the second rod 82, so that the clamping block 8 and the second puncture tube 72 are abutted against each other, so as to keep the second puncture tube 72 fixed in the current position, so as to install the second puncture tube 72 on the second slider 71, or use the retraction of the second slider 71 and the second puncture tube 72 to separate the second puncture tube 72 from the second slider 71.

[0074] During the process of the second electric push rod 73 driving the second slider 71 to move, the second slider 71 simultaneously drives the extension block 76 to move at the bottom of the storage block 85. When the second slider 71 is located below the storage block 85 and the extension block 76 completely covers or covers half of the bottom of the storage block 85, the extension block 76 supports the second puncture tube 72 in the storage block 85 to fix the vaccine bottle. When the second slider 71 is staggered from the storage block 85 and the extension block 76 completely exposes or covers one-third of the bottom of the storage block 85, the second puncture tube 72 inside the storage block 85 naturally drops into the injection block 7 due to gravity. The dropped second puncture tube 72 is received and fixed by the arc-shaped clamping block 8, and then the extension block 76 is driven by the second electric push rod 73 to cover the bottom of the storage block 85, realizing the taking of a single second puncture tube 72.

[0075] Embodiment 4:

[0076] The difference from Embodiment 3 is that a push plate 52 is also rotatably fitted in the placing cylinder 4. The push plate 52 corresponds to the replacement port 5, and an opening and closing electromagnet (not shown in the figure) is correspondingly arranged on the push plate 52. A second spring 53 is arranged between the push plate 52 and the placing cylinder 4. One end of the second spring 53 is fixedly connected to the push plate 52, and the other end of the second spring 53 is fixedly connected to the placing cylinder 4. A receiving ring 54 for receiving the vaccine bottle is fixedly connected to the end of the push plate 52 away from the placing cylinder 4. When the second spring 53 is compressed by the vaccine bottle, the opening and closing electromagnet is activated, and the receiving ring 54 is located above the first puncture tube 63. When the second spring 53 is in a normal state, the opening and closing electromagnet is closed, and the receiving ring 54 is located between the replacement port 5 and the first puncture tube 63.

[0077] A receiving plate 51 is fixedly connected to one side of the placing cylinder 4 close to the replacement port 5. The side of the receiving plate 51 away from the replacement port 5 is lower than the side of the receiving plate 51 close to the replacement port 5.

[0078] The specific implementation process is as follows: controlled by the opening and closing electromagnet. When the opening and closing electromagnet is activated, the push plate 52 drives the vaccine bottle to be located above the first puncture tube 63, facilitating the puncture treatment of the vaccine bottle by the first puncture tube 63. At this time, the second spring 53 is in a compressed state. When the opening and closing electromagnet is closed, the second spring 53 is no longer squeezed by the push plate 52, and the second spring 53 quickly releases its elastic force to form a throwing action, pushing the vaccine bottle on the push plate 52 to move towards the replacement port 5 due to inertia force to realize the disassembly treatment of the vaccine bottle. At this time, the push plate 52 is inclined. When the upper-layer vaccine bottle drops, the vertical force is dispersed by the inclined push plate 52 to reduce possible damage to the vaccine bottle and facilitate the subsequent replacement treatment of the vaccine bottle.

[0079] By means of the inclined receiving plate 51, it is convenient to guide the vaccine bottles falling from the replacement opening 5, that is, it is convenient to centrally collect the vaccine bottles, and the vertical force of the vaccine bottles can be dispersed through the receiving plate 51, reducing the breakage of the used vaccine bottles and reducing the subsequent workload.

[0080] Embodiment 5:

[0081] The difference from Embodiment 4 is that a floating block 64 is in clearance fit inside the liquid inlet block 6. One end of the floating block 64 close to the exchange port 75 is in sliding fit with the liquid inlet block 6, and a circulation hole is opened at the center of the floating block 64.

[0082] When the floating block 64 is at the highest point close to the first slider 61, the floating block 64 coincides with the exchange port 75.

[0083] The specific implementation process is as follows: The accumulation of liquid inside the liquid inlet block 6 is used to push the floating block 64 to move, so as to block the exchange port 75 through the floating block 64 to reduce the liquid inside the liquid inlet block 6 from entering the injection block 7; and the first slider 61 is used to contact the floating block 64, and the floating block 64 is used to increase the pressing height of the first slider 61, and the floating block 64 is used to pre-squeeze the liquid to ensure the continuity of the liquid inside the connecting pipe 74. The support space of the floating block 64 provides an accumulation space for the residual air inside the liquid inlet block 6, reducing the air from entering the connecting pipe 74 to facilitate the injection.

[0084] Embodiment 6:

[0085] The difference from Embodiment 5 is that a first pressing block 37 is fixedly connected to the bottom of the gripping block 3, and a second pressing block 38 is fixedly connected to the bottom of the pressing block 32. The first pressing block 37 and the second pressing block 38 are respectively in sliding fit with the placement table 1; a first water storage bag 34 for storing disinfectant is provided on one side of the first pressing block 37 away from the third spring 33, and a second water storage bag 35 for storing disinfectant is provided on one side of the second pressing block 38 away from the fourth electric push rod. The first water storage bag 34 is communicated with both sides of the gripping block 3 through a water pipe 36, and the second water storage bag 35 is communicated with one side of the pressing block 32 close to the baffle 2 through a water pipe 36.

[0086] When the third spring 33 is in a normal state, the first pressing block 37 abuts against the first water storage bag 34; when the output end of the fourth electric push rod is at the longest extended length, the second pressing block 38 abuts against the second water storage bag 35.

[0087] The specific implementation process is as follows: When the third spring 33 is in its normal state, the vaccination has been completed at this time. The first water storage bladder 34 is squeezed by the first pressing block 37 to pump disinfectant to disinfect the used gripping block 3 and reduce the residual bacteria on the surface of the gripping block 3; when the output end of the fourth electric push rod is at its longest extended length, the pressing block 32 presses and limits the patient's arm at this time, and the second water storage bladder 35 is squeezed by the second pressing block 38 to facilitate surface disinfection of the puncture site for subsequent vaccination.

[0088] Obviously, the above embodiments are merely examples given for clear illustration and not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or alterations can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or alterations derived therefrom are still within the protection scope of the present invention.

Claims

1. A vaccine automatic injection device, comprising a placement table (1) for placing a patient's arm, a baffle (2) for shielding the patient's sight being fixedly connected to the placement table (1), characterized in that: The placement table (1) is provided with an extension mechanism that moves based on the pushing of the patient's hand, the extension mechanism comprises a gripping block (3) that slidably cooperates with the placement table (1), the placement table (1) is provided with a plurality of pads (13) for supporting the patient's arm, and the tops of the pads (13) are all fixedly connected with pressure sensors for measuring real-time pressure data applied by the patient's arm; The placement table (1) is provided with an injection mechanism for automatically replacing vaccine bottles, and a control panel is fixedly connected to a side of the baffle (2) away from the injection mechanism, and the control panel is used to control the injection mechanism to work based on real-time pressure data.

2. The automatic vaccine injection device according to claim 1, characterized in that: The baffle (2) is provided with a placement channel (21) for the patient's arm to be inserted into or extended out, and a plurality of conical support blocks (22) are rotatably engaged in the placement channel (21). The support blocks (22) are arranged in a ring shape with the placement channel (21) as the center, and a ball (23) is rotatably engaged at one end of the support block (22) away from the baffle (2).

3. The automatic vaccine injection device according to claim 2, characterized in that: The extension mechanism also includes a support rod (31) fixedly connected to the gripping block (3), the support rod (31) is located above the cushion block (13), and slide grooves (12) are provided on both sides of the cushion block (13), and the slide grooves (12) are opened on the placement table (1); A third spring (33) is slidably engaged in the slide groove (12), and the third spring (33) is arranged on a side of the gripping block (3) away from the baffle (2); a pressure block (32) is also slidably engaged in the slide groove (12), and the pressure block (32) is located between the gripping block (3) and the baffle (2); A fourth electric push rod is slidably fitted inside the placement table (1), one end of the fourth electric push rod is fixedly connected to the pressure block (32), and the pushing direction of the fourth electric push rod is consistent with the length direction of the slide groove (12).

4. The automatic vaccine injection device according to claim 3, characterized in that: The injection mechanism comprises a placement cylinder (4), the vaccine bottle is located in the placement cylinder (4), a fixing ring (24) is fixedly connected to one side of the baffle (2) close to the gripping block (3), the placement cylinder (4) is located in the fixing ring (24), and the placement cylinder (4) is clamped with the fixing ring (24); A plurality of limiting pieces (41) are rotatably arranged in the placement tube (4), the limiting pieces (41) are symmetrically arranged with the placement tube (4) as the center, and the limiting pieces (41) are arranged in sequence along the length direction of the placement tube (4), the distances between adjacent limiting pieces (41) are consistent, and a first spring (43) is fixedly connected between the limiting pieces (41) and the placement tube (4); A replacement port (5) for taking out the vaccine bottle is provided at the bottom of the placement cylinder (4); a liquid inlet block (6) is fixedly connected to the bottom of the placement cylinder (4); a first slider (61) is slidably fitted inside the liquid inlet block (6); a first electric push rod (62) is fixedly connected between the first slider (61) and the bottom of the placement cylinder (4); and a first puncture tube (63) is fixedly connected to the side of the first slider (61) close to the placement cylinder (4); The bottom of the liquid inlet block (6) is also connected to an injection block (7), and a second slider (71) is slidably matched in the injection block (7), and the end of the second slider (71) away from the liquid inlet block (6) is fixedly connected to a second puncture tube (72); the side of the second slider (71) away from the second puncture tube (72) is fixedly connected to a second electric push rod (73), the second electric push rod (73) is fixedly connected to the inner wall of the injection block (7), and a retractable connecting tube (74) is connected between the second puncture tube (72) and the liquid inlet block (6), and the first electric push rod (62) and the second electric push rod (73) are electrically connected to the control panel; An exchange port (75) is connected between the liquid inlet block (6) and the injection block (7), and the exchange port (75) is located above the connecting pipe (74); When the first slider (61) moves to the point closest to the placement cylinder (4), the first puncture tube (63) is located in the placement cylinder (4), and the vaccine bottle in the placement cylinder (4) respectively abuts against the first puncture tube (63) and the limiting plate (41); when the first slider (61) moves to the point farthest from the placement cylinder (4), the first puncture tube (63) is located in the liquid inlet block (6); when the second slider (71) moves to the point farthest from the liquid inlet block (6), the second puncture tube (72) is located outside the injection block (7); when the second slider (71) moves to the point closest to the liquid inlet block (6), the second puncture tube (72) is located in the injection block (7).

5. The automatic vaccine injection device according to claim 4, characterized in that: The second puncture tube (72) is detachably connected to the second slider (71); an arc-shaped clamping block (8) is provided outside the second puncture tube (72); an end of the clamping block (8) away from the second puncture tube (72) is hinged to a first rod (81); an end of the first rod (81) away from the second puncture tube (72) is hinged to an injection block (7); a second rod (82) is hinged to the first rod (81); an end of the second rod (82) away from the first rod (81) is hinged to a moving block (83); and the moving block (83) is slidably matched with the injection block (7); A third electric push rod (84) is fixedly connected to one side of the moving block (83) away from the first rod (81), and the third electric push rod (84) is fixedly connected to the outer wall of the injection block (7); an accumulation block (85) and a drop-off groove (86) are provided between adjacent clamping blocks (8), and the accumulation block (85) and the drop-off groove (86) are symmetrically arranged with the injection block (7) as the center; The second puncture tube (72) is located in the accumulation block (85), and the second puncture tube (72) and the accumulation block (85) are slidably matched; an extension block (76) is slidably matched between the accumulation block (85) and the injection block (7), and one end of the extension block (76) away from the accumulation block (85) is fixedly connected to the second slider (71); When the second slider (71) is located directly below the accumulation block (85), the extension block (76) closes the interior of the accumulation block (85); when the second slider (71) is offset from the accumulation block (85), the extension block (76) opens the interior of the accumulation block (85); and when the output end of the third electric push rod (84) reaches the shortest extension length, the clamping block (8) separates from the second puncture tube (72); when the output end of the third electric push rod (84) reaches the longest extension length, the clamping block (8) abuts against the second puncture tube (72).

6. The automatic vaccine injection device according to claim 5, characterized in that: A plurality of electromagnets (42) for adsorbing the limiting plates (41) are fixedly connected in the placement cylinder (4); the electromagnets (42) are electrically connected to the control panel, and the positions of the electromagnets (42) and the first springs (43) correspond one to one.

7. The automatic vaccine injection device according to claim 6, characterized in that: A push plate (52) is also rotatably provided in the placement tube (4), the push plate (52) corresponds to the replacement port (5), an opening and closing electromagnet is provided corresponding to the push plate (52), and a second spring (53) is provided between the push plate (52) and the placement tube (4); One end of the push plate (52) away from the placement tube (4) is fixedly connected to a receiving ring (54) for receiving the vaccine bottle; when the second spring (53) is squeezed by the vaccine bottle and is in a compressed state, the opening and closing electromagnet is started, and the receiving ring (54) is located above the first puncture tube (63); when the second spring (53) is in a normal state, the opening and closing electromagnet is closed, and the receiving ring (54) is located between the replacement port (5) and the first puncture tube (63).

8. The automatic vaccine injection device according to claim 7, characterized in that: The side of the placement cylinder (4) close to the replacement port (5) is fixedly connected to the receiving plate (51), and the side of the receiving plate (51) away from the replacement port (5) is lower than the side of the receiving plate (51) close to the replacement port (5).

9. The automatic vaccine injection device according to claim 8, characterized in that: A floating block (64) is provided in the gap inside the liquid inlet block (6), one end of the floating block (64) close to the exchange port (75) is slidably matched with the liquid inlet block (6), and a flow hole is provided at the center of the floating block (64); When the floating block (64) is located near the highest point of the first sliding block (61), the floating block (64) overlaps with the exchange port (75).

10. The automatic vaccine injection device according to claim 9, characterized in that: A first pressing block (37) is fixedly connected to the bottom of the gripping block (3), and a second pressing block (38) is fixedly connected to the bottom of the pressure applying block (32); the first pressing block (37) and the second pressing block (38) are respectively slidably matched with the placing table (1); A first water storage bag (34) for storing disinfectant is provided on a side of the first pressing block (37) away from the third spring (33), and a second water storage bag (35) for storing disinfectant is provided on a side of the second pressing block (38) away from the fourth electric push rod. The first water storage bag (34) is connected to both sides of the gripping block (3) through a water pipe (36), and the second water storage bag (35) is connected to a side of the pressure block (32) close to the baffle (2) through a water pipe (36); When the third spring (33) is in a normal state, the first pressing block (37) abuts against the first water storage bag (34); when the output end of the fourth electric push rod is at the longest extension length, the second pressing block (38) abuts against the second water storage bag (35).

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