Medicine injection device for first-aid patient rescue

Abstract

The invention discloses a medicine injection device for first-aid patient rescue, and relates to the technical field of medical articles. The device specifically comprises a shell, an operation end, a controller, at least two pushing assemblies and at least two injection units, the pushing assemblies and the injection units are arranged on the shell, each injection unit comprises a needle tube, a piston and an injection pipeline, the pistons are arranged in the needle tubes, the injection pipelines are communicated with the needle tubes, and the operation end is connected with the controller. The pushing assemblies are connected with the injection units respectively and used for pushing the pistons to move, the operation end and the pushing assemblies are electrically connected with the controller, and the controller controls the movement amount of the pushing assemblies according to signals of the operation end so as to control the medicine dosage injected by the injection units. The injection device comprises the multiple injection units, the injection units can be used for storing medicine, the stored medicine can be directly injected, medicine packages do not need to be dismantled when the injection device is used, operation is simpler and more efficient, the medicine injection efficiency is improved, and therefore the rescue efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical articles, and in particular provides a drug injection device for rescuing emergency patients. Background Art

[0002] In the process of diagnosis and treatment, medical staff often encounter some patients who need emergency treatment, most commonly in the emergency department. But there are also some sudden situations, such as accidents, drug allergies, etc., which may occur in other places in the hospital or outside the hospital. In the process of rescuing patients, it is often encountered that the patient's condition is serious and progresses rapidly. At this time, multiple medical staff are required to rescue at the same time, including monitoring the patient's vital signs (measuring blood sugar, blood pressure, breathing, pulse, blood oxygen saturation, etc.), oxygen supply, establishment of intravenous access, injection of rescue drugs, and even cardiopulmonary resuscitation (including artificial chest compression, open airway, artificial respiration, cardiac defibrillation), etc.

[0003] Among them, in the injection of rescue drugs, a variety of rescue drugs are usually used and multiple injections are required. The current practice is that medical personnel who need to participate in the rescue first open the package of each rescue drug, draw the drug into the syringe in turn, and then inject it into the patient's body. This process may even be repeated many times. However, when the patient's condition progresses rapidly or there is a shortage of medical staff, the manpower and time of medical staff are very valuable. Even in the emergency department of a large hospital, when there are many patients, it may not be possible to mobilize sufficient staff at any time. Therefore, the cumbersome operation of the preparation and injection process of rescue drugs seriously affects the efficiency of patient rescue. Summary of the invention

[0004] The present invention provides a drug injection device for rescuing emergency patients, which is used to solve the problem that the preparation and injection process of rescue drugs are complicated and the efficiency of rescuing patients is seriously affected.

[0005] The technical solution of the present invention is as follows:

[0006] A drug injection device for rescuing emergency patients comprises a shell, an operating end, a controller, at least two pushing components and at least two injection units, wherein the pushing components and the injection units are respectively arranged on the shell, each injection unit comprises a needle tube, a piston and an injection pipeline, the needle tube is used to store medicine, the piston is arranged in the needle tube, the injection pipeline is connected to the needle tube, the medicine in the needle tube is output through the injection pipeline, each pushing component is respectively connected to each injection unit, the pushing component is used to push the piston to move, the operating end is arranged on the shell, the operating end and the pushing component are electrically connected to the controller, the operating end is used to input a signal to the controller, the controller controls the movement amount of the pushing component according to the signal of the operating end, and controls the dosage of the medicine injected by the injection unit by controlling the movement amount of the pushing component.

[0007] In this solution, the medicine can be stored in the syringe in advance. When the rescue medicine is needed, one end of the injection tube is inserted into the patient's body, and the operating end inputs a signal to the controller. The controller controls the movement of the push component, and the piston is pushed by the push component to push the medicine out of the syringe. The medicine enters the injection tube from the syringe and is then input into the patient's body from the injection tube. Therefore, the operating end can control each push component separately, so as to input different medicines into the patient's body separately. In this process, there is no need to remove the packaging of the medicine, and the medicine can be directly and efficiently selected, which reduces the difficulty of operation, reduces the operation time, and achieves the purpose of improving the injection efficiency.

[0008] In order to solve the problem of inaccuracy when the pushing assembly pushes the piston, the pushing assembly includes a driving mechanism and a screw-nut mechanism, the driving mechanism is transmission-connected to the screw-nut mechanism, and the screw-nut mechanism is transmission-connected to the piston.

[0009] In this solution, the screw-nut mechanism has high transmission accuracy, which can improve the accuracy of the push assembly, make the movement accuracy of the piston higher, and thus make the drug dosage output by the injection unit higher in accuracy.

[0010] Preferably, the driving mechanism is a servo motor.

[0011] In this solution, the rotation amount of the servo motor can be precisely controlled, and the controller can calculate the movement amount of the piston according to the rotation amount of the servo motor, thereby precisely controlling the dosage of the medicine injected by the injection unit.

[0012] Preferably, the drug injection device further comprises a detection unit, the housing is provided with a fixing groove for fixing the needle tube, the detection unit is arranged in the fixing groove, and the detection unit is used to detect whether the syringe is installed.

[0013] In this solution, the detection device can enable the controller to know whether the fixing groove is loaded with a needle tube.

[0014] In order to solve the problem of displacement of the needle tube due to the action of the pushing component, the fixing groove is provided with a locking piece, and the locking piece is used to lock the needle tube.

[0015] In this solution, the locking member is used to lock the needle tube. The locking action of the locking member on the needle tube can ensure that the needle tube will not be displaced when the needle tube is subjected to the force of the pushing component.

[0016] Different medicines have different usage amounts, so different doses of medicines also need to be stored in the syringe. In order to solve the problem that the controller cannot automatically identify the dosage of the medicine, resulting in the need to manually input the dosage of the medicine and causing cumbersome operation, the pushing component is provided with a pressure sensing unit. When the pushing component abuts against the bottom of the piston, the pressure sensing unit detects a pressure signal. The pressure sensing unit is electrically connected to the controller. The controller identifies the position of the piston according to the pressure sensing unit and automatically determines the dosage of the medicine in the syringe.

[0017] In this solution, when the controller detects that the needle tube is fixed in the fixing groove, the controller controls the push component to move so that the push component abuts against the needle tube. The controller can determine the moving distance of the push component by the rotation amount of the servo motor. After the pressure sensing unit on the push component abuts against the piston, the controller will know the change of the pressure signal of the pressure sensing unit. At this time, the moving distance of the push component corresponds to the position of the piston. The controller can determine the dosage of the medicine in the needle tube without manual input, which can reduce the workload of medical staff.

[0018] In order to solve the problem that medical staff are not clear about the remaining dosage of the medicine, the medicine injection device also includes a display screen, which is used to display the amount of medicine in each injection unit.

[0019] In this solution, a display screen is provided to display the remaining dosage of the medicine in each syringe, thereby facilitating medical staff to observe and ensure that a sufficient dosage of the medicine is stored in the syringe.

[0020] In order to solve the problem that medical staff cannot identify different injection units during operation, the needle tube is provided with a first mark, and the medicine in the needle tube is identified by the first mark.

[0021] In this solution, a first mark can be set on the needle tube, and different first marks can be used to refer to different medicines, which can help medical staff quickly distinguish the medicines stored in each injection unit.

[0022] The drug injection device includes multiple injection units, which are larger than ordinary syringes. In order to solve the problem of inconvenient injection operation, the injection pipeline includes a hose and a needle, one end of the hose is connected to the needle tube, and the other end of the hose is connected to the needle.

[0023] In this solution, the needle is connected to the needle tube through a hose, so the needle can be moved at will, which is convenient for injection operation.

[0024] Since the needle is connected to the syringe via a hose, it is necessary to determine whether the needle corresponds to the designated syringe during use. To this end, the needle is provided with a second mark for identification.

[0025] In this solution, by identifying the needle tube corresponding to the second mark, it can be quickly determined whether the needle tube used is correct.

[0026] Beneficial effects of the present invention:

[0027] The present invention comprises a plurality of injection units, which can be used to store medicines and directly inject the stored medicines without removing the packaging of the medicines during use. The operation is simpler and more efficient, and the efficiency of medicine injection is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solution of the present invention, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 It is a structural schematic diagram of the present invention;

[0030] Figure 2 is a partial cross-sectional view of the needle tube;

[0031] Figure 3 is a top view of the fixing groove;

[0032] Figure 4 It is a right side view of the present invention;

[0033] Figure 5 A schematic diagram of the structure of the push component.

[0034] In the above drawings, the corresponding reference numerals are as follows:

[0035] 1. Shell; 2. Screw rod; 3. Slot; 4. Needle tube; 5. Elastic sheet; 6. Hose; 7. Needle; 8. Clamping part; 9. Piston; 10. Fixing groove; 11. Mounting opening; 12. Detection unit; 13. Display screen; 14. Driving mechanism; 15. Nut; 16. Guide rod; 17. Pressure sensing unit; 18. Baffle. DETAILED DESCRIPTION

[0036] In conjunction with the accompanying drawings, the technical solution of the present invention is clearly and completely described through specific implementation methods of the embodiments of the present invention.

[0037] Embodiment 1:

[0038] like Figure 1As shown, the present embodiment 1 provides a drug injection device for rescuing emergency patients, including a housing 1, an operating end, a controller, a pushing assembly and an injection unit, wherein the housing 1 is used to install and fix the operating end, the controller, the pushing assembly and the injection unit, and the pushing assembly is used to push the injection unit so that the injection unit can perform an injection operation. The number of injection units can be multiple, for example, two, three, four or more injection units are set. The number of pushing assemblies is not less than the number of injection units, and each pushing assembly is used to push each injection unit, so that the medicines stored in each injection unit can be injected separately. The operating end and the pushing assembly are electrically connected to the controller respectively, and the operating end is used to input a signal to the controller. The controller can control the operation of the pushing assembly according to the input signal of the operating end, and the operation of the pushing assembly will push the injection unit to perform an injection.

[0039] like Figure 2 As shown, the injection unit includes a needle tube 4, a piston 9 and an injection pipeline. The needle tube 4 is used to store medicines. When emergency treatment is needed, the medicines can be stored in the needle tube 4 in advance. The piston 9 is slidably arranged in the needle tube 4. The piston 9 is connected to the pushing assembly. The pushing assembly pushes the piston 9 to move along the axial direction of the needle tube 4, thereby squeezing the medicine in the needle tube 4. The needle tube 4 is connected to the injection pipeline. When the piston 9 moves to squeeze the medicine in the needle tube 4, the medicine in the needle tube 4 will enter the injection pipeline and be discharged from the injection pipeline. One end of the injection pipeline is connected to the needle tube 4, and the other end of the injection pipeline is used to pierce the patient's body. The medicine can enter the patient's body from the injection pipeline.

[0040] like Figure 1 As shown, the injection pipeline includes a needle 7 and a hose 6, and the two ends of the hose 6 are respectively connected to the needle 7 and the needle tube 4. The advantage of using the hose 6 to connect the needle 7 and the needle tube 4 is that the needle tube 4 does not need to be moved when operating the needle 7. The volume of the needle 7 is much smaller than that of the needle tube 4, which can facilitate the operation of the needle 7 and avoid problems such as affecting the insertion angle of the needle 7 due to the excessive volume of the needle tube 4.

[0041] The needle tube 4 is provided with a first mark, and the first marks on each needle tube 4 are different. The first mark is provided on the needle tube 4 to facilitate the identification of the needle tube 4. When the needle tube 4 is provided with different medicines, the medicines can be inserted according to the first mark, which is convenient for medical staff to identify the type of medicine in the needle tube 4, reduce the time required for identifying the medicine, and improve the efficiency of the injection operation.

[0042] During the first aid process, some medicines may need to be used multiple times. After the medicines are used, the hose 6 obviously cannot be stored in time, so there may be confusion between the hoses 6 and the needles 7. The needles 7 are provided with second marks, and the second marks provided on the needles 7 are different. The second marks on the needles 7 correspond to the first marks on the needle tubes 4 connected to the needles 7, so that medical staff can find the correct needles 7 in the first place, reduce the time of searching for the needles 7, and improve the efficiency of the injection operation.

[0043] Both the first mark and the second mark can be colors set on the needle tube 4 or the needle 7. For example, the side wall of the needle tube 4 is set to green, red, blue or transparent, and the connection between the needle 7 and the hose 6 is set to green, red, blue or white. In this state, the first mark and the second mark are colors corresponding to each other.

[0044] The first mark and the second mark may also be numbers corresponding to each other. The numbers of the first marks are different, and the second marks correspond to the numbers of the first marks, for example, the first mark and the second mark use the same number. Or there are corresponding parts in the numbers of the first mark and the second mark, for example, the first mark is 01a and the second mark is 01b.

[0045] Similarly, the first mark and the second mark may also be corresponding patterns, text labels, etc.

[0046] Preferably, the first marks correspond to various drugs respectively, and one first mark corresponds to a specified drug, which makes it easy for medical staff to quickly identify the type of drug in each injection unit, shortens the time for identifying the type of drug, and improves injection efficiency.

[0047] like Figure 1 and Figure 3 As shown, a fixing groove 10 for mounting the needle tube 4 is provided on the housing 1 , and the needle tube 4 is mounted in the fixing groove 10 .

[0048] The fixing groove 10 is provided with a horizontal installation opening 11, and the needle tube 4 is installed in the fixing groove 10 in the horizontal direction. When the needle tube 4 is installed in the fixing groove 10, the axial direction of the needle tube 4 is the vertical direction. The top end of the needle tube 4 is located outside the fixing groove 10, and the hose 6 is connected to the top end of the needle tube 4.

[0049] The pushing assembly is arranged at the lower side of the fixing groove 10 and is used for pushing the piston 9 from bottom to top.

[0050] The side wall of the fixing groove 10 is provided with a clamping groove 3, and the outer side of the needle tube 4 is provided with a clamping portion 8 adapted to the clamping groove 3, and the clamping portion 8 is clamped into the clamping groove 3 to fix the axial direction of the needle tube 4. The pushing component pushes the piston 9 upward, so the needle tube 4 is subjected to an upward force, and the clamping portion 8 cooperates with the clamping groove 3 to prevent the needle tube 4 from moving upward when subjected to the force of the pushing component.

[0051] The clamping portion 8 can be a sheet-shaped clamping sheet or a block-shaped clamping block.

[0052] The mounting opening 11 of the fixing slot 10 is provided with an elastic sheet 5, which abuts against the needle tube 4 from the side to prevent the needle tube 4 from escaping from the fixing slot 10 through the mounting opening 11. The elastic sheet 5 can prevent the needle tube 4 from leaving the fixing slot 10 through the mounting opening 11.

[0053] Therefore, the elastic sheet 5 plays a role in locking the position of the needle tube 4 from the direction of the installation opening 11, and the clamping groove 3 plays a role in locking the position of the needle tube 4 from the axial direction of the needle tube 4. The elastic sheet 5 and the clamping groove 3 together achieve the function of fixing the needle tube 4. The elastic sheet 5 clamps the needle tube 4 from the side, which can facilitate the installation and removal of the needle tube 4 and facilitate operation.

[0054] After the needle tube 4 is installed, the bottom end height of the needle tube 4 is higher than the bottom end height of the installation opening 11 , which makes it easy to hold the bottom end of the needle tube 4 from the bottom, thereby facilitating the removal of the needle tube 4 .

[0055] A detection unit 12 for detecting the needle tube 4 is provided in the fixing groove 10, and is used to detect whether an injection unit is installed in the fixing groove 10. The detection unit 12 can be an infrared sensor or a pressure sensor. The detection unit 12 is provided on the side wall of the fixing groove 10. When the needle tube 4 is installed in the fixing groove 10, the detection unit 12 detects that the needle tube 4 is installed, and the controller will control the pushing component to work.

[0056] like Figure 4 As shown, a display screen 13 may be provided on the housing 1 , and the display screen 13 is electrically connected to the controller. When the injection unit is installed in the fixing groove 10 , the display screen 13 will display that the injection unit is installed in the fixing groove 10 .

[0057] Preferably, each fixed groove 10 is used for an injection unit containing a specific medicine. For example, a certain medicine is loaded into an injection unit provided with a specific first mark, and the injection unit is placed in a specific fixed groove 10. This method can unify the placement positions of various medicines, so that various medicines are placed in fixed positions, which can improve the recognition efficiency and thus improve the injection efficiency. In order to avoid the injection unit being placed in the wrong fixed groove 10, the same first mark as that on the injection unit can also be set in the fixed groove 10 to facilitate the injection unit to be quickly placed in the fixed groove 10.

[0058] The display screen 13 may be a touch screen. If the display screen 13 is a touch screen, the display screen 13 also serves as an operating terminal, and medical personnel can operate on the touch screen to send a signal to the controller, so that the controller controls the movement of the designated push component and the designated injection unit injects the drug outward. If the display screen 13 is not a touch screen, a separate operating terminal needs to be set, such as an operating panel with buttons, and medical personnel control the push components separately through the buttons.

[0059] The operation end can select the medicine to be injected and input the dosage of the medicine to be injected. When a medicine needs to be injected multiple times, the dosage of each injection is input separately, and the controller will control the push component to move in multiple times and control the moving distance of the push component each time. The injection dosage of the injection unit each time is controlled by controlling the moving distance of the moving component.

[0060] like Figure 5 As shown, the push assembly includes a servo motor and a screw nut mechanism. The screw nut mechanism includes a screw 2 and a nut 15. The servo motor is fixed to the housing 1. The output shaft of the servo motor is connected to the nut 15 in a transmission connection. The nut 15 is connected to the screw 2 in a transmission connection. The screw 2 is vertically arranged in the housing 1. When the nut 15 rotates, the screw 2 moves in the vertical direction. A structure to prevent rotation is provided on the screw 2. For example, a guide rod 16 parallel to the screw 2 is provided at one end of the screw 2. A guide hole is provided on the housing 1. The guide rod 16 is slidably connected to the guide hole. The axis of the guide hole is vertically arranged. Since the guide rod 16 can only move up and down along the guide hole, the screw 2 cannot rotate. When the servo motor drives the nut 15 to rotate, the screw 2 can only move in the vertical direction. The drive motor and the nut 15 can be connected by gear transmission. The housing 1 is provided with a baffle 18 to prevent the nut 15 from moving up and down. The baffle 18 abuts against the nut 15 from the upper and lower sides to ensure that the nut 15 only rotates, thereby ensuring the accuracy of the up and down movement of the screw 2. When the screw rod 2 moves upward, it pushes the piston 9 from the bottom, causing the piston 9 to move upward.

[0061] The driving mechanism 14 adopts a servo motor, which has the advantage that the rotation amount of the servo motor can be accurately controlled, thereby accurately controlling the up and down movement distance of the screw rod 2 and the upward movement distance of the piston 9.

[0062] like Figure 5 As shown, a pressure sensing unit 17 is provided at the top of the screw rod 2, and the pressure sensing unit 17 is electrically connected to the controller. When the pressure sensing unit 17 has a pressure signal, it indicates that the top of the screw rod 2 has abutted against the bottom of the piston 9.

[0063] The pressure sensing unit 17 may be a pressure sensor, and the controller may be a PLC or a single chip microcomputer.

[0064] After the detection unit 12 detects that the needle tube 4 is loaded, the controller will control the pushing component to work, and the screw rod 2 will move upward. When the pressure sensing unit 17 detects a pressure signal, the controller turns off the pushing component and the pushing component stops working. At this time, the controller calculates the distance that the screw rod 2 moves upward according to the rotation amount of the servo motor, thereby obtaining the position of the piston 9. The needle tube 4 of the injection unit has a fixed length. At this time, the volume of medicine that can be stored in the needle tube 4 can be determined by the position of the piston 9, and the dosage of medicine in the needle tube 4 can be obtained. The dosage of medicine in the injection unit corresponding to the fixed groove 10 is displayed on the display screen 13. Each fixed groove 10 is used to fix a specified medicine, and the name and dosage of the medicine can be directly displayed on the display screen 13, which is convenient for medical staff to observe.

Claims

1. A drug injection device for emergency patient rescue, It is characterized in that The invention comprises a housing (1), an operating end, a controller, at least two pushing components and at least two injection units, wherein the pushing components and the injection units are respectively arranged on the housing (1), each injection unit comprises a needle tube (4), a piston (9) and an injection pipeline, the needle tube (4) is used to store medicine, the piston (9) is arranged in the needle tube (4), the injection pipeline is connected to the needle tube (4), the medicine in the needle tube (4) is output through the injection pipeline, each pushing component is respectively connected to each injection unit, the pushing component is used to push the piston (9) to move, the operating end is arranged on the housing (1), the operating end and the pushing component are electrically connected to the controller, the operating end is used to input a signal to the controller, the controller controls the movement amount of the pushing component according to the signal of the operating end, and controls the amount of medicine injected by the injection unit by controlling the movement amount of the pushing component.

2. A drug injection device for emergency patient rescue according to claim 1, It is characterized in that The pushing assembly comprises a driving mechanism (14) and a screw-nut mechanism, wherein the driving mechanism (14) is drivingly connected to the screw-nut mechanism, and the screw-nut mechanism is drivingly connected to the piston (9).

3. A drug injection device for emergency patient rescue according to claim 2, It is characterized in that The driving mechanism (14) is a servo motor.

4. A drug injection device for emergency patient rescue according to claim 3, It is characterized in that It also comprises a detection unit (12), the housing (1) is provided with a fixing groove (10) for fixing the needle tube (4), the detection unit (12) is arranged in the fixing groove (10), and the detection unit (12) is used to detect whether the syringe is installed.

5. A drug injection device for emergency patient rescue according to claim 4, It is characterized in that The fixing groove (10) is provided with a locking piece, and the locking piece is used to lock the needle tube (4).

6. A drug injection device for emergency patient rescue according to claim 4, It is characterized in that The pushing component is provided with a pressure sensing unit (17). When the pushing component abuts against the bottom of the piston (9), the pressure sensing unit (17) detects a pressure signal. The pressure sensing unit (17) is electrically connected to a controller. The controller identifies the position of the piston (9) according to the pressure sensing unit (17) and automatically determines the dosage of the medicine in the needle tube (4).

7. A drug injection device for emergency patient rescue according to claim 6, It is characterized in that The device also comprises a display screen (13), wherein the display screen (13) is used to display the amount of medicine in each injection unit.

8. A drug injection device for emergency patient rescue according to claim 1, It is characterized in that The needle tube (4) is provided with a first mark, and the medicine in the needle tube (4) is identified by the first mark.

9. A drug injection device for emergency patient rescue according to claim 1, It is characterized in that The injection pipeline comprises a hose (6) and a needle (7), one end of the hose (6) is connected to the needle tube (4), and the other end of the hose (6) is connected to the needle (7).

10. A drug injection device for emergency patient rescue according to claim 9, It is characterized in that The needle (7) is provided with a second mark for identification.

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