TWI777094B - Shared injection device - Google Patents

Abstract

A common type injection device, which is used for assembling an injection needle tube containing a drug, the common type injection device includes a needle tube bushing, a drug type information providing part provided in the needle tube bushing, and an injection device detachably connected to the needle tube bushing A propulsion mechanism, wherein a needle tube bushing with a drug type information providing part is pre-installed on the injection needle tube, and the drug type information providing part can provide interpretable drug type information corresponding to the drug type, so that the user can pass the interpretable drug type information. After confirming that the type of medicine is correct, the type information providing department connects the needle hub with the injection advancing mechanism, and executes the injection action according to the information of the type of medicine to ensure the safety of injection. The combined structure of the needle tube bushing on the injection needle tube enables the injection propulsion mechanism to be shared and reused. It is not necessary to make a specific or dedicated injection device according to the injection needle tube equipped with different types of drugs, thereby reducing unnecessary waste and reducing costs.

Description

Shared injection device

The present invention relates to an injection device, in particular to a shared injection device capable of assembling an injection needle tube containing a drug and providing information for interpreting the type of the drug.

Based on the safety specification of drug injection, the existing injection device already has the function of controlling or adjusting the amount of drug injection. That is, after the metering type injection device is assembled with the injection needle tube with the medicine, the injection push mechanism of the injection device is used to push the piston of the injection needle tube to move a certain stroke distance, and then the predetermined dose of medicine is output through the needle at the front end of the tube.

At present, most of the existing injection devices have the function of controlling the dose of the injected drug. However, in the process of using the injection device, the user must first confirm whether the type of drug filled in the injection needle is correct, and then according to the needs of different injection objects after confirmation. And decide the injection dose and injection advance stroke.

However, the aforesaid existing injection device only has the function of connecting the injection needle and the injection propulsion, and does not have the ability to interpret the information of the drug type in the connected injection needle. There are concerns about insufficient security.

The purpose of the present invention is to provide a shared injection device, which can solve the problem that the existing injection device cannot interpret the information of the drug type in the injection needle tube connected to it, and it is difficult to confirm whether the type of the drug to be injected is correct, and the injection device containing different drugs Needle tubes are separately made into dedicated injection devices, and injection devices cannot be shared.

In order to achieve the aforementioned purpose, the shared injection device provided by the present invention is used for assembling an injection needle tube containing a drug, and the shared injection device includes: a needle tube bushing, which can be assembled on the injection needle tube, the needle tube bushing includes a connecting part; a medicine type information providing part, which is set on the needle tube bushing and can provide the interpretable medicine corresponding to the medicine type information; and an injection propulsion mechanism, which is detachably connected to the connecting part of the needle tube bushing, and can provide the injection needle tube with the propelling force for injecting medicine.

According to the invention of the aforementioned shared injection device, the needle tube bushing provided with the drug type information providing part is pre-assembled on the injection needle tube, and the drug type information providing part provides the possibility of correctly corresponding to the medicine filled in the injection needle tube. Interpreted drug type information, in this way, the user can first confirm whether the type of drug filled in the injection needle is correct through the interpretable drug type information supply unit. Information on the type of drug, the needs of the subject to be injected determine the injection dose and execute the injection propulsion stroke, thereby ensuring the safety of injection.

Furthermore, in the invention of the shared injection device of the present invention, it is only necessary to set the information of the drug type set in the needle tube bushing according to the type of drugs filled in different injection needle tubes, and pre-install the needle tube bushing in the corresponding injection needle tube. In this way, the injection propulsion mechanism can be connected to injection needles containing different drugs, and the injection propulsion mechanism can be shared and reused. It is not necessary to make specific or dedicated injection devices according to the injection needles containing different drugs, reducing unnecessary waste and cut costs.

In the shared injection device, the drug type information providing portion may be drug type information formed on the outer surface of the needle hub and can be visually interpreted, or the drug type information providing portion may be provided in the needle hub The information on the type of drug that can be interpreted electronically is combined with an electronic interpretation module installed in the injection propulsion mechanism to provide information on the type of drug contained in the injection needle, so that the user can perform a specific injection according to the type of drug information. Advance the action stroke.

In the shared injection device, when the drug type information providing part is provided in the needle hub and can be electronically interpretable, the drug type information is combined with a When the electronic interpretation module is used, the injection propulsion mechanism is an electric injection propulsion mechanism, and the control circuit board of the control assembly is electrically connected to the electronic interpretation module, and the electronic interpretation module can read the drugs provided by the drug type information provider For the type information, the microprocessor of the control circuit board can judge the type of the medicine according to the signal output by the electronic interpretation module, and decide to execute a specific injection propelling action corresponding to the type of the medicine.

1: injection needle

1A: Pipe fittings

2A, 2B, 2C: Common injection device

10A, 10B, 10C: Needle Bushings

11A, 11B, 11C: Connection part

12A, 12B, 12C: Bushing base

14A, 14B, 14C: snap-on bumps

15A, 15B, 15C: Hook

20A, 20B, 20C: Drug Type Information Provision Department

21B: Angular displacement drive part

21C: Light Sensing Section

30B, 30C: Electronic interpretation module

31B: Angular displacement detection element

32B: driven wheel

31C: Luminous source

32C: light detection element

40A, 40B, 40C: Injection propulsion mechanism

41A: Shell

411A: Assembly slot

41B, 41C: Chassis

411B, 411C: Assembling slot

42A, 42B, 42C: screw propulsion rod set

421A: Assemblies

422A: Adjusting Collar

423A: Helical push rod

424A: Propulsion rod

423B: Helical push rod

425B: Spiral guide rod

43B, 43C: Electric motors

44B, 44C: Control components

45B, 45C: Control circuit board

46B, 46C: Switching elements

47B, 47C: Display screen

48B, 48C: control module

481B, 481C: Joystick

FIG. 1 is a perspective view of a preferred embodiment of a shared injection device with a manual injection propulsion mechanism combined with an injection needle tube of the present invention.

FIG. 2 is a partially exploded perspective view of a preferred embodiment of a shared injection device with a manual injection propulsion mechanism and an injection needle tube shown in FIG. 1 .

FIG. 3 is a front-end plan view of the manual injection propelling mechanism shown in FIGS. 1 to 2 .

FIG. 4 is a schematic three-dimensional view of the preferred embodiment of the shared injection device with the manual injection propelling mechanism and the injection needle tube shown in FIG. 2 from another viewing angle.

FIG. 5 is a perspective exploded schematic view of a preferred embodiment of a shared injection device with a manual injection propulsion mechanism and an injection needle shown in FIGS. 1 and 2 .

FIG. 6 is a schematic cross-sectional view of the preferred embodiment of the shared injection device with a manual injection propelling mechanism shown in FIG. 1 combined with an injection needle.

7 is a perspective view of a preferred embodiment of the shared injection device having an electric injection propulsion mechanism combined with an injection needle tube according to the present invention.

FIG. 8 is a partially exploded perspective view of the preferred embodiment of the shared injection device with the electric injection propulsion mechanism and the injection needle tube shown in FIG. 7 .

FIG. 9 is a perspective view of the preferred embodiment of the shared injection device with the electric injection propelling mechanism shown in FIG. 8 and the injection needle tube from another viewing angle.

FIG. 10 is a front-end plan view of the electric injection propelling mechanism shown in FIG. 8 .

FIG. 11 is a partially exploded perspective view of a preferred embodiment of a shared injection device with an electric injection propulsion mechanism and an injection needle shown in FIGS. 7 and 8 .

12 is an exploded perspective view of a preferred embodiment of a shared injection device with an electric injection propulsion mechanism and an injection needle shown in FIGS. 7 and 8 .

FIG. 13 is a partial perspective view of the preferred embodiment of the shared injection device with an electric injection propulsion mechanism and the injection needle shown in FIGS. 7 , 8 and 12 .

14 is a schematic cross-sectional view of the preferred embodiment of the shared injection device with an electric injection propulsion mechanism shown in FIG. 7 combined with an injection needle.

FIG. 15 is a partially exploded perspective view of another preferred embodiment of a shared injection device with an electric injection propulsion mechanism and an injection needle tube of the present invention.

FIG. 16 is a partially exploded perspective view of the preferred embodiment of the shared injection device with the electric injection propulsion mechanism shown in FIG. 15 .

FIG. 17 is a front-end plan view of the electric injection propelling mechanism shown in FIG. 15 .

FIG. 18 is a partial perspective view of the preferred embodiment of the shared injection device with the electric injection propelling mechanism shown in FIG. 15 from another viewing angle.

19 is a schematic rear plan view of the needle hub and the electronic interpretation module in the preferred embodiment of the shared injection device with the electric injection propulsion mechanism shown in FIG. 15 .

As shown in FIG. 1, FIG. 7 and FIG. 15, it is a schematic diagram showing several preferred embodiments of the shared injection device 2A, 2B, 2C and the injection needle tube 1 of the present invention. The injection needle tube 1 is equipped with a medicine and a piston in its tube, a needle is installed at the front end of the tube 1A, and a needle sheath is sleeved on the outside of the needle. The shared injection devices 2A, 2B, 2C of the present invention can be combined with the injection The rear end of the pipe part 1A of the needle tube 1 can provide information of the drug type corresponding to the drug in the injection needle tube, so that the user can perform the corresponding injection action according to the drug type data.

As shown in FIGS. 1 to 2 , 7 to 9 , and 15 to 16 , the shared injection devices 2A, 2B, and 2C of the present invention may be manual or electric injection devices. 2B and 2C include a needle hub 10A, 10B, 10C, a drug type information providing part 20A, 20B, 20C, and an injection advancing mechanism 40A, 40B, 40C.

As shown in FIGS. 2 to 5 , 7 to 12 and 15 to 18 , the needle hubs 10A, 10B, and 10C can be assembled at the rear end of the tubular member 1A of the injection needle 1 , and the needle hubs 10A, 10B, 10C include a connecting portion 11A, 11B, 11C, and the connecting portion 11A, 11B, 11C is assembled with the injection propulsion mechanism 40A, 40B, 40C. In the preferred embodiments disclosed in the drawings, the needle hubs 10A, 10B, 10C include a hub base 12A, 12B, 12C, and the hub bases 12A, 12B, 12C are formed on the connecting portions 11A, 11B, At the front end of 11C, the opposite sides of the bushing bases 12A, 12B, 12C can respectively form an operation portion that protrudes outward, and the needle tube bushings 10A, 10B, 10C are formed with axial through bushing bases 12A, 12B, 12C and a middle hole of the connecting parts 11A, 11B, 11C, the middle hole provides the tube 1A of the injection needle tube 1 to pass through, and the rear end of the tube 1A can be fixed in the middle hole.

As shown in FIGS. 2 to 5 , 7 to 12 and 15 to 18 , in each of the preferred embodiments disclosed in the drawings, the peripheral walls of the connecting portions 11A, 11B and 11C form a plurality of snap-on bumps 14A , 14B, 14C, by means of a plurality of snap-on bumps 14A, 14B, 14C and the injection-propulsion mechanism 40A, 40B, 40C snap-fit combination. The connecting portions 11A, 11B, 11C of the needle hubs 10A, 10B, 10C form a plurality of buckle hooks 15A, 15B, 15C extending into the middle hole, and the plurality of buckle hooks 15A, 15B, 15C can be snapped to fix the pipe fitting 1A. rear end.

As shown in FIGS. 2 to 5 , 7 to 12 , and 15 to 18 , the drug type information providing sections 20A, 20B, and 20C are provided on the needle hubs 10A, 10B, and 10C, and can provide corresponding The interpretable drug type information of the drug, the drug type information providing part 20A, 20B, 20C can be a Alternatively, the drug type information providing parts 20A, 20B, 20C can also be added in accordance with the combined structure between the connecting parts 11A, 11B, 11C of the needle hubs 10A, 10B, 10C and the injection advancing mechanisms 40A, 40B, 40C The number is not limited to one drug type information providing part 20A, 20B, 20C.

As shown in FIG. 1 , FIG. 2 , FIG. 4 and FIG. 5 , the drug type information providing part 20A may be formed on the outer surface of the needle hub 10A and provide the type of drug that can be visually interpreted, such as patterns, characters, numbers or combinations thereof. News. Alternatively, as shown in FIGS. 8 to 11 and FIGS. 16 to 19 , the drug type information providing parts 20B and 20C can also be provided in the needle hubs 10B and 10C, and provide electronically interpretable drug type information, such as : Angular displacement analog information or photoelectric encoded digital information that can be read electronically by electronic interpretation modules 30B and 30C such as angular displacement analog module or photoelectric coding module.

As shown in FIGS. 1 , 7 and 15 , the injection propulsion mechanisms 40A, 40B, and 40C are detachably connected to the connecting parts 11A, 11B, and 11C of the needle hubs 10A, 10B, and 10C, and are capable of aligning the injection needles. 1 Provides the propulsive force of the injected drug. The injection advancing mechanisms 40A, 40B, and 40C may be manual or electric injection advancing mechanisms, wherein, as shown in FIGS. 1 , 2 , 4 and 5 , when the drug type information providing part 20A is visually interpretable When providing information, the injection propulsion mechanism 40A can be a manual injection propulsion mechanism or an electric injection propulsion mechanism; as shown in FIGS. 7 to 9 and 15 to 16 , when the drug type information providing parts 20B and 20C are capable of electronic When interpreting the information, the injection propulsion mechanisms 40B and 40C use electric injection propulsion mechanisms, and electronic interpretation modules 30B and 30C are installed in the injection propulsion mechanisms 40B and 40C to automatically execute the corresponding information according to the electronic interpretation information. The specific injection action is better.

The preferred embodiment shown in FIG. 1 to FIG. 6 shows that the injection pushing mechanism 40A is a manual injection pushing mechanism. The injection pushing mechanism 40A includes a housing 41A and a screw pushing rod set 42A. The housing 41A is a The connecting portion 11A of the needle hub 10A is detachably connected. In this preferred embodiment, the front end of the housing 41A has a set of connecting grooves 411A and at least one buckled concave portion communicating with the connecting grooves 411A. Slot 411A and screw After turning an angle, the snap-on protrusions 14A on the outer peripheral wall of the connecting portion 11A snap into the snap-on recesses, so that the connecting portion 11A of the needle hub 10A is detachably fixed to the front end of the housing 41A.

As shown in FIG. 1 to FIG. 6 , the screw rod group 42A is assembled in the housing 41A, and the screw rod group 42A can be inserted into the injection needle tube 1 through the middle hole 13A of the needle tube bush 10A, and the injection needle tube The piston in the pipe fitting 1A of 1 provides thrust, and the aforementioned screw rod group 42A can be selected from various known products, and the specific structure thereof will not be repeated. Alternatively, as shown in the preferred embodiment shown in FIG. 1 to FIG. 6 , the screw push rod set 42A includes a set of connecting pieces 421A, a ring 422A, a screw push rod 423A, a push rod 424A, etc., the screw push rod 424A, etc. The rod 423A is screwed into the push rod 424A, and the adjusting collar 422A is screwed to the rear end of the assembly member 421A, and is also sleeved on the outside of the push rod 424A. The screw push rod set 42A and the assembly member 421A are assembled at the In the housing 41A, the helical push rod 423A and the push rod 424A can pass through the assembly 421A, and the push rod 424A can be manually pushed to drive the helical push rod 423A to move forward and extend into the tube 1A of the injection needle 1 Inside, thrust is provided to the piston inside the tube 1A.

In the preferred embodiment shown in FIGS. 1 to 6 , when the injection advancing mechanism 40A is a manual injection advancing mechanism, after the needle hub 10A connecting the rear end of the injection needle 1 is connected to the front end of the housing 41A of the injection advancing mechanism 40A, The user manually operates the injection propulsion mechanism 40A to execute the injection propulsion stroke corresponding to the drug type according to the drug type information providing part provided on the outer peripheral surface of the needle hub 10A to provide visually interpretable drug type information corresponding to the drug contained in the injection needle 1 .

7 to 14 and the preferred embodiment shown in FIGS. 15 to 19, when the injection propulsion mechanisms 40B and 40C are electric injection propulsion mechanisms, the injection propulsion mechanisms 40B and 40C include a casing 41B, 41C, A screw rod group 42B, 42C, an electric motor 43B, 43C, and a control assembly 44B, 44C. The casings 41B and 41C are hollow casings, and the front ends of the casings 41B and 41C are detachably connected to the connecting parts 11B and 11C of the needle hubs 10B and 10C. In this preferred embodiment, the front ends of the casings 41B and 41C have a set of connecting grooves 411B and 411C and a buckled concave portion communicating with the connecting grooves. 11C can be inserted into the assembly slot 411B, 411C and after rotating by an angle, make the snap-on projections 14B, 14C on the outer peripheral walls of the connecting parts 11B, 11C snap into the snap-on recesses, so that the connecting parts 11B, 11C of the needle hubs 10B, 10C can be disassembled and assembled. are fixed to the front ends of the casings 41B and 41C.

As shown in Figures 7 to 14, and Figures 15 to 19, the screw rod sets 42B, 42C are installed in the casings 41B, 41C, and can be driven to extend out of the front ends of the casings 41B, 41C, For pushing the piston into the inside of the pipe member 1A of the injection needle 1, the screw push rod sets 42B and 42C can be selected from known products, and their specific structures will not be repeated here. Alternatively, as shown in the preferred embodiment shown in FIG. 14 , the screw push rod sets 42B and 42C include a screw push rod 423B and a screw guide rod 425B, and the screw guide rod 425B is pivoted on the casing so as to be rotatable at a fixed point. In 41B and 41C, the helical push rod 423B is screwed into the helical guide rod 425B, and can be driven by the helical guide rod 425B to extend forwardly into the interior of the pipe member 1A of the injection needle 1 to push the piston.

As shown in FIGS. 7 to 14 and FIGS. 15 to 19 , the electric motors 43B and 43C are installed in the casings 41B and 41C, and are connected to the screw rod sets 42B and 42C for driving the screw rods. Groups 42B, 42C generate thrust that pushes the piston in linear motion. In the preferred embodiment shown in FIG. 14 , the electric motors 43B and 43C are connected to the rear end of the helical guide rod 425B through the shaft of the electric motors 43B and 43C through the coupling element, so as to drive the helical guide rods of the helical propulsion rod sets 42B and 42C. The rod 425B rotates, and then the helical push rod 423B is driven by the helical guide rod 425B to extend forward into the interior of the pipe member 1A of the injection needle 1 to push the piston.

As shown in FIGS. 7 to 14 and FIGS. 15 to 19 , the control assemblies 44B and 44C are installed in the casings 41B and 41C. The control assemblies 44B and 44C include a control circuit board 45B with a microprocessor. , 45C, and a switch element 46B, 46C, the control circuit boards 45B, 45C are electrically connected to the electric motors 43B, 43C, and can determine the action mode of the electric motors 43B, 43C to perform the corresponding injection action. The switch elements 46B, 46C are exposed outside the casings 41B, 41C, and can control the switches of the control circuit boards 45B, 45C to activate the electric motors 43B, 43C to drive the screw rod sets 42B, 42C to execute the injection and push strokes.

In the preferred embodiment shown in FIGS. 7 to 14 and FIGS. 15 to 19 , the control components 44B, 44C further include a display screen 47B, 47C and a control module 48B, 48C, the display screens 47B, 47C The control modules 48B and 48C are installed in the casings 41B and 41C, and the control modules 48B and 48C and the display screens 47B and 47C are electrically connected to the control circuit boards 45B and 45C. The control modules 48B and 48C have a The joysticks 481B, 481C, the display screens 47B, 47C and the joysticks 481B, 481C are all exposed outside the casings 41B, 41C, and can be set by the joysticks 481B, 481C and the switch elements 46B, 46C of the control modules 48B, 48C In order to control the electric motors 43B and 43C to drive the screw propulsion rods 42B and 42C to perform stable propulsion strokes and switches, the aforementioned control assemblies 44B and 44C can be selected from known products, and their specific structures will not be repeated here.

As shown in FIGS. 7 to 14 and FIGS. 15 to 19 , when the injection advancing mechanisms 40B and 40C use electric injection advancing mechanisms, the drug type information providing parts 20B and 20C are arranged in the needle tube hubs 10B and 10C. And when providing information that can be interpreted electronically, the drug type information providing parts 20B, 20C combine with an electronic interpretation module 30B, 30C, and the electronic interpretation modules 30B, 30C are installed in the casings 41B of the injection propulsion mechanisms 40B, 40C , 41C, and the electronic interpretation modules 30B, 30C are electrically connected to the control circuit boards 45B, 45C for interpreting the electronically interpretable drug type information provided by the drug type information providing parts 20B, 20C, by the control circuit board 45B and 45C determine the action mode of driving the electric motors 43B and 43C according to the electronically interpreted drug type information, so as to execute the corresponding specific injection advancing stroke.

In the above, when the drug type information providing parts 20B and 20C provide the drug type information that can be interpreted electronically, the drug type information providing parts 20B and 20C and their matching electronic interpretation modules 30B and 30C can at least have the following preferred embodiments be realized.

In the preferred embodiment shown in FIG. 7 to FIG. 14 , the medicine type information providing unit 20B provides angular displacement analogy information. When the electronic interpretation module 30C is an angular displacement analogy module, the medicine type information providing unit 20B has An angular displacement driving portion formed on the outer peripheral surface of the connecting portion 11B of the needle hub 10B 21B, and can be assembled and rotated with the connecting portion 11B of the needle tube hub 10B in the casing 41B of the injection propulsion mechanism 40B, and the angular displacement driving portion 21B is set according to the information of the type of medicine filled in the injection needle tube 1. The contact transmission section of the rotation angle, the electronic interpretation module 30B is installed in the casing 41B of the injection propulsion mechanism 40B, the electronic interpretation module 30B includes a driven wheel 32B and an angular displacement detection element 31B, the driven wheel 32B can be rotated by the angular displacement driving part 21B to generate an angular displacement of a specific angle. The angular displacement detecting element 31B is connected to the driven wheel 32B and is electrically connected to the control circuit board 45B of the control assembly 44B. The angular displacement detecting element 31B According to the angular displacement of the driven wheel 32B driven to rotate, the corresponding angular displacement analog information is output to the control circuit board 45B.

In the preferred embodiment shown in FIGS. 7 to 14 , the angular displacement driving part 21B may have a structure with one corner limiting tooth or a continuous plurality of corner limiting teeth. The angular displacement driving part 21B is based on the injection needle tube. The number of teeth of the corner limit teeth is set according to the type of drug loaded. For example, according to drug A, the angular displacement driving part has one corner limit tooth, and according to drug B, the angular displacement drive has two consecutive corner limit teeth. Etc., the driven wheel 32B of the electronic interpretation module 30B is a gear that can be matched with the angle limit teeth, the angular displacement detection element 31B can be selected from a potentiometer or a variable resistor, and the angle limit teeth provide specific The rotation angle range is the contact transmission section, and the area around the angular displacement driving part 21B is the non-contact transmission section, which is the section that cannot drive the driven wheel 32B to rotate. The angular displacement detection element 31B outputs corresponding voltage signals to the control circuit boards 45B and 45C according to the angular displacement of the driven wheel 32B driven to rotate.

As described above, since the number of teeth of the angle-limiting teeth of the angular displacement driving part 21B is small, the amount of angular displacement generated by the driven driven wheel 32B is small, and the number of teeth of the angle-limiting teeth of the angular displacement driving part 21B is large, and the driven wheel 32B is driven The angular displacement generated by the driven wheel 32B is large, and the angular displacement detection element 31B generates voltage signals of different sizes according to the change of the rotational angular displacement of the driven wheel 32B. According to this linear relationship, the microprocessor of the control circuit board 45B It can read the generated voltage signal in a specific interval, judge the type of the drug, and decide to execute a specific injection propelling action corresponding to the drug.

Similarly, the angular displacement driving part 21B can be changed into a contact transmission section with frictional resistance, and a specific length can be set according to the information of the drug type filled in the injection needle 1, and the driven wheel 32B of the electronic interpretation module 30B can be changed to an energy The friction wheel or the like that is frictionally driven by the angular displacement driving part, that is, the friction transmission structure is used instead of the aforementioned gear transmission structure, can also achieve the same function as the foregoing.

Furthermore, the drug type information providing part 20B provides angular displacement analog information. When the electronic interpretation module 30B is an angular displacement analog module, the drug type information providing part 20B has the outer peripheral surface of the connecting part 11A formed on the needle hub 10B. Conductive coating or conductive sticker of a specific section, the electronic interpretation module 30B is installed in the casing 41B of the injection propulsion mechanism 40B, the electronic interpretation module 30B includes an angular displacement detection element 31B, the angular displacement detection element 31B has a coil and is electrically connected to the control circuit board 45B of the control component 44B. The angular displacement detection element 31B detects the change of its magnetic flux according to the distance change of the conductive coating or the conductive sticker due to the rotational angular displacement, and provides the control circuit The plate 45C outputs a corresponding magnetic flux signal (not shown).

In the preferred embodiment shown in FIG. 15 to FIG. 19 , the drug type information providing unit 20C provides photoelectrically encoded digital information. When the electronic interpretation module 30C is a photoelectric encoding module, the drug type information providing unit 20C has a basis The light-sensing section 21C of the specific light-transmitting area is set by injecting the drug type information filled in the needle tube 1, wherein, when the needle tube bushing 10C is made of a completely opaque material, the drug type information providing part 20C is formed on the needle tube bushing The connection part 11C of 10C predetermines a partial opening in the sensing area, and the partial opening sets the size of the hole area or the light-shielding pattern according to the information of different drug types, so as to provide the light-sensing section 21C with a specific light-transmitting area, or the needle tube The connection part 11C of the bushing 10C has a full aperture formed in the predetermined sensing area, and the drug type information providing part 20C is provided in the light-shielding layer with a light-shielding coating with a specific pattern in the predetermined sensing area, so as to provide a light-sensing section with a specific light-transmitting area 21C.

As shown in FIGS. 15 to 19 , the electronic interpretation module 30C is installed in the casing 41C of the injection advancing mechanism 40C. When the connecting portion 11C of the needle hub 10C is assembled in the machine of the injection advancing mechanism 40C When the shell 41C is installed, the position of the electronic interpretation module 30C corresponds to the medicine type information providing part 20C, the electronic interpretation module 30C includes a light-emitting source 31C and a light-detecting element 32C, and the light-emitting source 31C and the light-detecting element 32C can be located on opposite sides of the light-sensing section 21C (ie, the connecting portion 11C of the needle hub 10C). The inner and outer sides correspond to the position of the light-sensing section 21C), the light-emitting source 31C and the light-detecting element 32C are both electrically connected to the control circuit board 45C, and the light-detecting element 32C can sense the light emitted by the light-emitting source 31C passing through the light source 31C. Sensing the light transmittance of the segment 21C, it outputs a corresponding voltage signal to the control circuit board 45C. The microprocessor of the control circuit board 45C determines the type of the drug and decides to execute a specific injection propelling action corresponding to the drug.

In addition, the drug type information providing unit may also be a one-dimensional barcode or a two-dimensional barcode set according to the information of the drug type filled in the injection needle. Preferably, the two-dimensional barcode can be selected as Quick Response Code (QR Code), the electronic interpretation module is installed in the casing of the injection propulsion mechanism, and includes a light source and an image The scanning element, the light source and the image scanning element are all electrically connected to the control circuit board. The aforementioned one-dimensional barcodes or two-dimensional barcodes, light sources, and image scanning elements for scanning the barcodes are all existing products, and their specific structures will not be repeated here.

When the connecting part of the needle hub is assembled on the casing of the injection propulsion mechanism, the position of the electronic interpretation module corresponds to the drug type information providing part, and the drug type information providing part is illuminated by a light source, and the image is scanned. The component scans the one-dimensional barcode or two-dimensional barcode of the drug type information providing part, and the microprocessor of the control circuit board determines the drug according to the information generated by scanning the one-dimensional barcode or two-dimensional barcode provided by the drug type information providing part type, and decides to perform a specific injection propelling action corresponding to the type of drug.

As can be seen from the foregoing description, the shared injection device of the present invention is constructed by a combination of a needle hub, a drug type information providing portion provided in the needle hub, and an injection propulsion mechanism detachably connected to the needle hub. The needle tube bush with the drug type information providing part is pre-installed on the injection needle tube with the drug, and the drug type information providing part provides the interpretable drug type information corresponding to the drug, so that the user can confirm through the interpretable drug type information providing part After the correct type of drug, The injection propulsion mechanism is connected to the needle tube bushing, and executes the injection action according to the information of the drug type, so as to ensure the safety of injection; The injection propulsion mechanism can be shared and reused, and there is no need to make a specific or dedicated injection device according to the injection needle tubes equipped with different medicines, thereby reducing unnecessary waste and reducing costs.

1: injection needle

1A: Pipe fittings

2B: Shared injection device

10B: Needle Bushing

11B: Connection part

12B: Bushing base

20B: Drug Type Information Provider

40B: Injection Propulsion Mechanism

41B: Chassis

411B: Assembly slot

46B: Switching element

47B: Display screen

481B: Joystick

Claims (12)

A common type injection device, which is used for assembling an injection needle tube filled with medicine, the common type injection device comprises: a needle tube bushing, which can be assembled on the injection needle tube, the needle tube bushing includes a connecting part; a a medicine type information providing part, which is arranged on the needle hub and can provide interpretable medicine type information corresponding to the medicine; and an injection propelling mechanism, which is detachably connected to the connecting part of the needle hub, and The injection needle can provide the propelling force for injecting the medicine. The shared injection device according to claim 1, wherein the drug type information providing section is formed on the outer surface of the needle hub and can be visually interpreted as the drug type information. The shared injection device according to claim 2, wherein the injection advancing mechanism is a manual injection advancing mechanism, which comprises a housing and a screw advancing rod group, and the housing system is detachably connected to the needle bushing. The connecting part, the screw push rod set is assembled in the housing, and the screw push rod set can extend into the injection needle tube through the needle tube bush to provide thrust. The shared injection device as claimed in claim 2, wherein the injection propelling mechanism is an electric injection propelling mechanism, and the injection propelling mechanism comprises: a casing, the front end of which is a connecting portion that can be detachably connected to the needle hub ; a screw propelling rod group, which is installed in the casing and can be driven to extend out of the front end of the casing and into the inside of the injection needle to provide thrust; an electric motor, which is installed in the casing, and Connect the screw rod group; and a control assembly, which is installed in the casing, and includes a control circuit board with a microprocessor and a switch element, the control circuit board is electrically connected to the electric motor, and can The action mode of the electric motor is determined to execute the injection advancing stroke. The switch element is exposed outside the casing and can control the switch of the control circuit board. The shared injection device according to claim 1, wherein the drug type information providing part is provided in the needle hub and can be electronically interpretable drug type information, and is combined with an electronic device installed in the injection advancing mechanism Interpretation module. The shared injection device as claimed in claim 5, wherein the injection advancing mechanism is an electric injection advancing mechanism, and the injection advancing mechanism comprises: a casing, the front end of which is a connecting portion that is detachably connected to the needle hub ; a screw propelling rod group, which is installed in the casing and can be driven to extend out of the front end of the casing and into the inside of the injection needle to provide thrust; an electric motor, which is installed in the casing, and Connect the screw rod group; and a control assembly, which is installed in the casing, and includes a control circuit board with a microprocessor and a switch element, the control circuit board is electrically connected to the electric motor, and can Determines the action mode of the electric motor for executing the injection advancing stroke, the switch element is exposed outside the casing, and can control the switch of the control circuit board; the drug type information providing part is an angular displacement analog module, the drug The type information providing part has an angular displacement driving part formed on the outer peripheral surface of the connecting part of the needle sleeve, and can be assembled in the casing of the injection propulsion mechanism and rotated along with the connecting part of the needle sleeve, and the angular displacement The driving part sets a contact transmission section with a specific rotation angle according to the information of the drug type filled in the injection needle. The electronic interpretation module is assembled in the casing of the injection propulsion mechanism. The electronic interpretation module includes a driven wheel and a corner. A displacement detection element, the driven wheel can be rotated by the angular displacement driving part to generate an angular displacement of a specific angle, the angular displacement detection element is connected to the driven wheel and is electrically connected to the control circuit board of the control assembly, the angular displacement detection element According to the angular displacement of the driven wheel driven to rotate, the corresponding angular displacement analog information is output to the control circuit board, and the microprocessor of the control circuit board can read the angular displacement analog information to determine the type of the drug, As well as deciding to perform a specific injection advancement action corresponding to the drug. The shared injection device according to claim 6, wherein the angular displacement driving part has a structure with at least one corner limiting tooth, and the angular displacement driving part sets the turning angle limiting tooth according to the information of the drug type loaded in the injection needle tube The number of teeth; the driven wheel of the electronic interpretation module is a gear that can match the angle limit teeth, the angular displacement detection element is a potentiometer or a variable resistor, and is electrically connected to the control circuit board of the control assembly, A specific rotation angle range is provided by the corner limit tooth as a contact transmission section, the area located on the periphery of the angular displacement driving part is a non-contact transmission section, and the angular displacement detection element is driven according to the driven wheel. The angular displacement of rotation The corresponding voltage signal is output to the control circuit board. The shared injection device according to claim 6, wherein the angular displacement driving part is a contact transmission section with frictional resistance, and a specific length is set according to the information of the drug type in the injection needle; The driven wheel is a friction wheel that can be frictionally driven for the angular displacement driving part. The angular displacement detection element is a potentiometer or a variable resistor and is electrically connected to the control circuit board of the control assembly. The angular displacement detection element is based on the slave wheel. The angular displacement of the driving wheel is driven to rotate, and the corresponding voltage signal is output to the control circuit board. The shared injection device as claimed in claim 5, wherein the injection advancing mechanism is an electric injection advancing mechanism, and the injection advancing mechanism comprises: a casing, the front end of which is a connecting portion that is detachably connected to the needle hub ; a screw propelling rod group, which is installed in the casing and can be driven to extend out of the front end of the casing and into the inside of the injection needle to provide thrust; an electric motor, which is installed in the casing, and Connect the screw rod group; and a control assembly, which is installed in the casing, and includes a control circuit board with a microprocessor and a switch element, the control circuit board is electrically connected to the electric motor, and can Determining the action mode of the electric motor for executing the injection propelling stroke, the switch element is exposed outside the casing, and can control the switch of the control circuit board; The drug type information providing part is an angular displacement analog module, the drug type information providing part has a conductive coating or a conductive sticker formed on a specific section of the outer peripheral surface of the connecting part of the needle hub, and the electronic interpretation module includes an angular displacement A detection element, the angular displacement detection element has a coil and is electrically connected to the control circuit board of the control assembly, the angular displacement detection element detects the change of its magnetic flux according to the distance of the conductive coating or the conductive sticker due to the rotational angular displacement, and A corresponding magnetic flux signal is output to the control circuit board, and the microprocessor of the control circuit board can read the magnetic flux signal to judge the type of the drug, and decide to execute a specific injection propelling action corresponding to the type of the drug. The shared injection device according to claim 5, wherein the injection advancing mechanism is an electric injection advancing mechanism, and the injection advancing mechanism comprises: a casing, the front end of which is a connecting portion that is detachably connected to the needle hub ; a screw rod group, which is installed in the casing, and can be driven to extend out of the front end of the casing and into the inside of the injection needle to provide thrust; an electric motor, which is installed in the casing, and Connect the screw rod group; and a control assembly, which is installed in the casing, and includes a control circuit board with a microprocessor and a switch element, the control circuit board is electrically connected to the electric motor, and can Determines the action mode of the electric motor for executing the injection advancing stroke, the switch element is exposed outside the casing, and can control the switch of the control circuit board; the drug type information providing part can provide photoelectric coding digital information, and has A light-sensing section with a specific light-transmitting area is set according to the drug type information in the injection needle; the electronic reading module is a photoelectric coding module, and is installed in the casing of the injection propulsion mechanism, and the electronic reading module is The group includes a light-emitting source and a light-detecting element, the light-emitting source and the light-detecting element can be located on opposite sides of the light-sensing section, and both are electrically connected to the control circuit board of the control assembly, and are connected to the control circuit board according to the light-sensing According to the transmittance of the segment, a corresponding voltage signal is output to the control circuit board, and the microprocessor of the control circuit board can The voltage signal determines the type of the drug and decides to execute a specific injection propelling action corresponding to the drug. The shared injection device as claimed in claim 5, wherein the injection advancing mechanism is an electric injection advancing mechanism, and the injection advancing mechanism comprises: a casing, the front end of which is a connecting portion that is detachably connected to the needle hub ; a screw propelling rod group, which is installed in the casing and can be driven to extend out of the front end of the casing and into the inside of the injection needle to provide thrust; an electric motor, which is installed in the casing, and Connect the screw rod group; and a control assembly, which is installed in the casing, and includes a control circuit board with a microprocessor and a switch element, the control circuit board is electrically connected to the electric motor, and can Determine the action mode of the electric motor for executing the injection advancing stroke, the switch element is exposed outside the casing, and can control the switch of the control circuit board; the drug type information providing part has a drug type according to the injection needle tube One-dimensional barcode or two-dimensional barcode is set according to the information, the electronic interpretation module is assembled in the casing of the injection propelling mechanism, the electronic interpretation module includes a light source and an image scanning element, the light source and the image scanning element They are all electrically connected to the control circuit board, so as to illuminate the drug type information supply part through the light-emitting source, the image scanning element scans a one-dimensional barcode or two-dimensional barcode of the drug type information supply part, and the microcomputer of the control circuit board emits light. The processor determines the type of the medicine according to the information generated by scanning the one-dimensional barcode or the two-dimensional barcode provided by the medicine type information providing unit, and decides to execute a specific injection propelling action corresponding to the medicine. The shared injection device according to claim 4, 6, 7, 8, 9, 10 or 11, wherein the control component further comprises a display screen and a control module with a joystick, the display screen and the control The mold assembly is arranged in the casing and is electrically connected to the control circuit board. The joystick and the display screen are both exposed outside the casing.

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