CN110841145B

CN110841145B - Automated drug delivery system

Info

Publication number: CN110841145B
Application number: CN201911327762.1A
Authority: CN
Inventors: 赖源发; 邓盈; 陈实; 冯亚栋; 赵晶; 沈金海; 陈婷; 林若川; 蔡尽忠
Original assignee: Xiamen Huaxia University
Current assignee: Xiamen Huaxia University
Priority date: 2019-12-20
Filing date: 2019-12-20
Publication date: 2021-07-13
Anticipated expiration: 2039-12-20
Also published as: CN110841145A

Abstract

The automatic medicine conveying system can adapt to intravenous injection operation needing to add medicine powder into liquid medicine, the whole process is automatically completed, the automatic medicine conveying system is convenient and quick, the screw rod transmission mechanism is used as a driving source of needle tube puncture action, the puncture stroke can be controlled very accurately, the screw rod transmission mechanism can provide more stable and larger puncture force, meanwhile, the electromagnet and the iron block are used as clutch means, the rotation of the motor is converted into the puncture action of the needle tube in a swing rod driving mode, the vertical size can be reduced, the action conversion can be completed at the same time, the structure is ingenious, the whole conveying system does not need to perform medicine dispensing operation from the input of the medicine liquid and the medicine powder, the medicine can be dispensed and the medicine can be infused, and the efficiency is improved.

Description

Automated drug delivery system

Technical Field

The invention relates to the technical field of medical instruments, in particular to an automatic drug delivery system.

Background

Intravenous injection is divided into a transient intravenous injection and a continuous intravenous injection, the transient intravenous injection is generally injected into a vein by a syringe, namely general injection, while the continuous intravenous injection is implemented by intravenous drip, commonly called as 'drip', and the 'drip' is widely applied in hospitals and clinics, so that people have more research and improvement on the transient intravenous injection, and the improvement on the continuous intravenous injection at present mainly aims at how to replace liquid medicine after the completion of infusion. For example, patent document 1 discloses a patient-controlled mechanical device for replacing a liquid medicine, in which a plurality of liquid conveying tubes are arranged on a liquid conveying tube fixing disc with a ratchet structure, and then a liquid changing pawl is manually driven to act, so that the pawl acts on a ratchet, and the liquid conveying tube fixing disc is driven to rotate, so that different liquid conveying tubes can be aligned with a liquid conveying main pipe 15 below, and the patient can manually replace the liquid medicine, but in the device, because the liquid conveying tube fixing disc rotates during liquid changing, the liquid conveying tubes arranged above the liquid conveying tube fixing disc can generate a twisting knotting phenomenon, and meanwhile, because the ratchet is driven by the pawl to rotate by a lattice ratchet, a certain liquid conveying tube cannot be skipped during liquid medicine changing, and only sequential replacement can be performed, so that the efficiency is low, and although a liquid medicine hopper in the device is connected by a pin, how to disassemble a liquid medicine hopper in the whole mechanical device, how other parts in the whole device are connected with the liquid medicine hopper is not described, so that the problems that the liquid medicine hopper cannot be well replaced and the like exist; as another example, patent document 2 discloses a bottle changing device for an infusion bottle, which includes a bottle changing mechanism 300 capable of being driven by a motor to rotate, a puncture mechanism 200 capable of driving a puncture needle to move up and down, a holding mechanism 101 capable of positioning a medicine bottle, and the like, when liquid needs to be changed, the medicine liquid to be changed is transferred to the upper part of the puncture needle by the bottle changing mechanism 300, and then the puncture needle is driven by the puncture mechanism 200 to move up, so that the medicine liquid can flow out, although the automation degree of the method is high, the method can only perform infusion for a certain medicine liquid, if two identical medicine liquids need to be conveyed, the method can only complete infusion by driving the bottle changing mechanism 300 after one bottle is first conveyed, and then complete liquid change by the puncture mechanism, and has the defects of low efficiency and only single bottle of medicine can be conveyed by one set of actions, and meanwhile, because the device is directly arranged below the medicine bottle, therefore, the device is inevitably installed at the same height as the medicine bottle, and a patient cannot watch or operate a button on the device during liquid dropping, so that the device has the problem of inconvenient operation; as patent document 3, a disposable multi-channel infusion set is disclosed, in which the infusion bottle 1 at the top is composed of 3 sub-infusion bottles 2 of equal volume which are not communicated with each other, the lower end is connected to the same murphy dropper 5 through an infusion tube 3 with a flow control valve 4, and then a scalp needle is connected. None of the prior art references mentioned in the above patent documents consider how to automatically replace sterile powders for injection (e.g. certain antibiotics penicillins, cephalosporins, certain enzyme preparations trypsin, etc.) if an intravenous drip is encountered that requires the addition of sterile powders, how to automatically dissolve the sterile powders into a liquid, and do not provide an automatic drug delivery system.

[ patent document 1] CN104162206A

[ patent document 2] CN105214162A

[ patent document 3] CN2311274Y

In summary, in the prior art, there is no automatic medicine delivery system including an automatic medicine adding device capable of automatically operating, adding medicine powder into medicine liquid, injecting a plurality of medicine liquids simultaneously according to the will of the patient, selecting the injection sequence of different medicine liquids, and simultaneously separating the medicine liquid circulation pipeline and the linkage mechanism to conveniently detach and replace the intravenous injection automatic replacement device.

Disclosure of Invention

In order to overcome the defects of the traditional medicine conveying system, the invention provides a technical scheme that the automatic medicine conveying system comprises a support frame, a hook, an infusion bag, a powder medicine bottle, a dropper mouthpiece, a medicine bottle mouthpiece, an intravenous injection automatic replacement device, an infusion main pipe, an infusion pipe, a switch valve and an infusion needle, wherein the infusion bag is fixedly arranged on the support frame through the hook, the lower end of the infusion bag is connected into the dropper mouthpiece through the dropper, the tail end of the dropper is provided with a sealing film, the powder medicine bottle is fastened into the medicine bottle mouthpiece in an inverted manner, the lower ends of the dropper mouthpiece and the medicine bottle mouthpiece are respectively fastened with a top cover of the intravenous injection automatic replacement device, the upper end of the infusion main pipe is connected with a bottom cover of the intravenous injection automatic replacement device, the lower end of the infusion main pipe is connected with the, the intravenous injection automatic replacement device comprises a shell main body, a top cover, a bottom cover, a needle tube replacement driving module and a liquid medicine conveying box, wherein the top cover is arranged at the top end of the shell main body, the bottom cover is arranged at the bottom end of the shell main body, the needle tube replacement driving module is fixedly arranged in the shell main body, the liquid medicine conveying box is detachably arranged in the shell main body and is positioned at the lower end of the needle tube replacement driving module, a liquid medicine dropper mouthpiece area and a powder medicine bottle mouthpiece area are arranged at the upper end of the top cover side by side, at least two dropper mouthpiece pipes are uniformly arranged in the liquid medicine dropper mouthpiece area, medicine bottle mouthpiece areas with the same number as the dropper mouthpiece pipes are uniformly arranged in the powder medicine bottle mouthpiece area, the upper ends of the dropper mouthpiece pipes are connected with droppers, the lower ends of the dropper pipes, the needle tube replacement driving module is provided with needle tubes A with the same number as the dropper mouthpiece, and is also provided with needle tubes B with the same number as the medicine bottle mouthpiece, the needle tubes A and the needle tubes B are respectively positioned below the dropper mouthpiece and the medicine bottle mouthpiece and can independently lift under the driving of the needle tube replacement driving module, so that the needle tubes A and the medicine bottle mouthpiece can stretch and retract in the dropper mouthpiece and the medicine bottle mouthpiece, and a medicine bottle cap and/or a dropper sealing membrane can be punctured, so that medicine liquid and/or medicine powder can flow out, the lower ends of the needle tubes A and the needle tubes B are connected to the upper end of the medicine liquid conveying box through the detachable tubes A, the lower end of the medicine liquid conveying box is connected to the infusion main pipe on the bottom cover through the detachable tubes B, the medicine liquid conveying box is provided with independent chambers with the same number as the dropper mouthpiece through a partition plate, and each independent chamber is connected with a, and the plane formed by the axes of the connected needle tube A and the needle tube B is parallel to the partition plate.

Preferably, the needle tube replacement driving module comprises a fixed base plate, a lifting block, a supporting arm, a vertical guide strip, a jaw, a triangular sliding block, a swinging rod, an electromagnet, an iron block, a screw rod A, a hollow screw rod sleeve A and a driving motor, wherein the fixed base plate is horizontally arranged inside the shell main body in a detachable or fixed arrangement mode, the fixed base plate is provided with a through hole and an elongated hole, the lifting block is arranged at the upper end of the fixed base plate, the two ends of the lifting block are provided with the vertical guide strips, the fixed base plate or the shell main body is internally provided with guide grooves matched with the vertical guide strips, so that the lifting block can only lift up and down, the side edge of the lifting block is provided with the supporting arm, the other end of the supporting arm is provided with the jaw, the jaw is used for clamping the needle tube A or the needle tube B, the detachable tube A connected with the needle, a triangular groove is formed in the bottom end of the lifting block, a triangular main body of the triangular sliding block is embedded into the triangular groove, a rotating pin of the triangular sliding block penetrates through the elongated hole and then is connected with one end of a swing rod at the lower end of the fixed bottom plate in a rotating mode, the middle of the swing rod is arranged on the fixed bottom plate in a rotating mode through the swing pin, and an iron block is arranged at the other end of the swing rod.

Preferably, the driving motor is fixedly arranged at the bottom end of the fixed base plate, the output end of the driving motor is connected with a hollow screw rod sleeve A, a screw rod is engaged in the hollow screw rod sleeve A, the axis of the hollow screw rod sleeve A, the screw rod and the output end of the driving motor coincide, the plane formed by the axis and the axis of the fixed base plate is a vertical plane, the upper outer surface of the screw rod is provided with a guide groove structure along the axis direction, the fixed base plate is provided with a guide rail structure matched with the guide groove, so that the screw rod can only slide along the axis direction and can not rotate relative to the axis, the screw rod is provided with an electromagnet matched with an iron block, when a corresponding needle tube needs to be driven to puncture, only the corresponding electromagnet needs to be selected to be electrified, so that the electromagnet absorbs the iron block, the driving motor rotates to drive the hollow screw rod sleeve A to rotate, so that the screw rod horizontally slides relative to the, the electromagnet and the swing rod corresponding to the iron block are driven to rotate, so that the triangular sliding block slides, the lifting block is lifted through the triangular sliding block and the triangular groove, the clamping jaw is driven to lift, the needle tube is driven to lift, and the puncture or dressing change action is completed.

Preferably, the inclination of the triangular body corresponding to the lower end of the mouth-piece area of the powder medicine bottle is larger than that of the triangular body corresponding to the lower end of the mouth-piece area of the liquid medicine dropper, so that the needle tube B can penetrate into the bottle cap of the medicine bottle earlier than the needle tube A.

Preferably, the axial direction of the elongated hole is parallel to the axial direction of the screw shaft;

preferably, the upper end of the fixed base plate and the two sides of the elongated hole are provided with sliding strips, and the bottom of the triangular sliding block is provided with a sliding groove matched with the sliding strips, so that the triangular sliding block can stably slide on the fixed base plate.

Preferably, the jack catch includes first jack catch, second jack catch and locking end plate, and first jack catch and second jack catch one end rotate to be connected in the support arm, and first jack catch and second jack catch other end all are provided with the locking end plate, and the locking end plate is locked through the locking bolt.

Preferably, the medicine bottle mouth-piece, the burette mouth-piece, needle tubing A, needle tubing B are two, and the cavity includes cavity A and cavity B, and removable pipe includes bleeder A, bleeder B and house steward, and connection can be dismantled to bleeder A and cavity A bottom, and connection can be dismantled to bleeder B and cavity B, and house steward detachable connects in the bottom, the infusion house steward that bottom detachable connects.

Preferably, the needle tube B comprises a needle tube main body, a puncture needle is arranged at the top end of the needle tube main body, a piston is slidably arranged at the bottom end of the needle tube main body and is connected with a hydraulic rod, the hydraulic rod is driven to stretch by a hydraulic telescopic cylinder, the hydraulic telescopic cylinder is fixed on a mounting seat, the mounting seat is fixedly arranged on the needle tube main body by a motor mounting frame, a detachable tube interface is arranged on the side wall of the needle tube main body and is used for being connected with a detachable tube A, and one-way valves are arranged on the puncture needle and the detachable tube interface, so that when the piston is driven by the hydraulic telescopic cylinder to move downwards, the one-way valve on the puncture needle is opened, the one-way valve in the detachable tube interface is closed, medicine powder can be sucked into the needle tube main body by negative pressure, and when the piston is driven by the hydraulic telescopic cylinder to move, so that the medicinal powder can be introduced into the chamber.

Preferably, a control panel is provided on a side wall or a top cover of the housing main body, and an operation button is provided on the control panel.

Preferably, an input interface is provided on the control panel for inputting the type of medication that the patient is required to inject.

Preferably, the top cover and the bottom cover are rotatably coupled to the housing main body.

The invention has the beneficial effects that:

1) in the automatic medicine conveying system, after medicines are prepared, a patient can automatically complete medicine feeding and changing operations only by pressing a start button by one key, and the automatic intravenous injection changing device in the automatic medicine conveying system can overcome the defect that in the prior art, only liquid medicines can be automatically filled or changed, and can also automatically add medicines or change the intravenous injection when sterile powder for injection (such as certain antibiotics penicillins, cephalosporins, certain enzyme preparations trypsin and the like) needs to be injected, so that the defects that when the sterile powder for injection is required to be filled, an injection needle and the like are firstly used for sucking out the powder during medicine preparation and then is filled into the liquid medicine are avoided, and the defects of long medicine preparation time, complex medicine preparation operation, high medicine preparation requirement and the like are avoided;

2) in the automatic medicine delivery system, the dropper mouthpiece, the medicine bottle mouthpiece, the detachable tube A, the detachable tube B and the infusion main tube 15 are all detachably arranged on the delivery system and are all disposable tube pieces, so that the use safety is ensured;

3) the automatic intravenous injection replacing device is provided with an independent liquid medicine conveying channel, a needle tube replacing driving module and a liquid medicine conveying box are completely separated in the automatic intravenous injection replacing device, when the automatic intravenous injection replacing device needs to be used, the liquid medicine conveying box is assembled in the needle tube replacing driving module, then liquid medicine and a puncture needle are communicated for transfusion, and after the automatic intravenous injection replacing device is used, the whole liquid medicine conveying box can be detached for cleaning and disinfection for the next use;

4) the needle tube replacement driving module of the automatic intravenous injection replacement device uses a motor as a driving power supply, the motor rotates to drive a screw rod sleeve to rotate and further convert the screw rod sleeve into transverse sliding of a driving sliding rod, a swinging rod coupled and connected with a driving electromagnet rotates to finally drive a triangular sliding block to transversely slide, and the triangular sliding block drives a jacking block to vertically slide so as to drive a needle tube clamped with a clamping head on the triangular sliding block to vertically slide, so that the needle tube can be inserted into a powder medicine bottle or a medicine liquid dropping tube, and the vertical sliding of the needle tube can be realized through a structure with a small longitudinal size;

5) the medicine jacking device comprises a detachable ejector rod needle tube replacing module, wherein an electromagnet is used as a coupling structure for selecting whether a needle tube is lifted up and down, so that the corresponding needle tube can be selected to be lifted up and down by selecting whether the electromagnet is electrified or not, and the corresponding liquid medicine or powder medicine bottle is selected to perform intravenous drip injection;

6) the driving slide rod in the needle tube replacement driving module is driven back and forth, after the positions and the number of needle tubes to be driven are selected, the needle tubes lift in the driving extending process of the driving slide rods to puncture corresponding medicine bottles or medicine liquid droppers, so that medicine liquid or medicine powder falls into a medicine liquid conveying box until all medicine liquid or medicine powder is input, at the moment, the driving slide rods perform return motion to drive the needle tubes to move downwards in the opposite direction, so that the needle tubes are pulled out of the medicine liquid or powder medicine bottles, meanwhile, the positions of electromagnets corresponding to the used medicine liquid or medicine bottles are recorded to enable the electromagnets not to be powered again, electromagnets corresponding to the medicine liquid or powder medicine bottles to be replaced are selected, and then the electromagnets are powered on, so that the driving motor rotates again to drive the corresponding needle tubes to ascend;

7) the liquid medicine conveying box comprises a plurality of compartments, each compartment comprises at least one liquid medicine dropping pipe interface and at least one powder medicine bottle interface, so that when liquid medicine with powder needs to be injected, the liquid medicine and the powder medicine bottles are respectively connected into the liquid medicine dropping pipe interfaces and the powder medicine bottle interfaces, the powder can be mixed into the liquid medicine, the whole process is fully automatic, meanwhile, the liquid medicine dropping pipe interfaces are uniformly arranged along the parallel compartments, and the powder medicine bottle interfaces are also uniformly arranged along the parallel compartments, so that the interfaces are neatly arranged, and operators can conveniently carry out medicine feeding operation to avoid errors;

8) the control panel is arranged on the shell, the control panel is provided with a power switch key for switching on or off the power supply of the whole device, each interface corresponds to a medicine feeding operation button, each interface corresponds to a medicine changing operation button and the like, so that a patient or medical staff can conveniently carry out medicine feeding or liquid medicine changing operation according to the requirements;

9) the needle tubing that sets up in, powder medicine bottle interface still includes the vacuum suction structure to can be through corresponding operation with the powder suction in the powder medicine bottle separate indoorly, thereby mix the powder into the liquid medicine, inject patient.

Drawings

FIG. 1 is a schematic diagram of an automated drug delivery system according to the present invention;

FIG. 2 is a partial cross-sectional view of the automatic intravenous replacement device of the present invention with the top cover removed;

FIG. 3 is a schematic view of the structure of the liquid conveying box of the present invention;

FIG. 4 is a top view of the syringe replacement drive module of the present invention;

FIG. 5 is a view A-A of FIG. 4;

FIG. 6 is a bottom view of the needle cannula replacement drive module of the present invention;

FIG. 7 is a top view of the needle cannula replacement drive module with the elevator block and other mechanisms removed;

FIG. 8 is a schematic view of the structure of the needle tube B.

Description of the reference symbols

1. A housing main body; 2. a top cover; 3. a bottom cover; 4. a control panel; 5. a powder vial mouthpiece region; 6. a liquid medicine dropper mouthpiece area; 7. the needle tube replacement driving module; 8. a liquid medicine delivery box; 9. a vial mouthpiece; 10. a dropper mouthpiece; 11. a needle tube A; 12. a needle tube B; 13. the tube A can be detached; 14. the tube B can be detached; 15. a main infusion pipe; 16. fixing the bottom plate; 17. passing through the aperture; 18. a lifting block; 19. a support arm; 20. a claw; 21. an upper half jaw; 22. a lower half jaw; 23. locking the end plate; 24. a vertical conducting bar; 25. a triangular groove; 26. a triangular slider; 27. a rotation pin; 28. a triangular main body; 29. a hollow lead screw sleeve A; 30. a screw mandrel A; 31. a swing rod; 32. a swing pin; 33. an electromagnet; 34. an iron block; 35. a long hole; 36. a slide bar; 37. puncturing needle; 38. a needle tube body; 39. a motor mounting bracket; 40. a mounting seat; 41. a hydraulic telescopic cylinder; 42. a hydraulic lever; 43. a piston; 44. a detachable tube interface; 45. a partition plate; 46. a chamber A; 47. a chamber B; 48. a branch pipe A; 49. a branch pipe B; 50. a header pipe; 51. a drive motor; 52. a powder vial; 53. an infusion bag; 54. a dropper; 55. a support frame; 56. hooking; 57. a transfusion tube; 58. an infusion needle; 59. and (4) switching on and off the valve.

Detailed Description

The present invention is further illustrated by the following examples, which are not intended to be limiting in any way, and any modifications or alterations based on the teachings of the present invention are intended to fall within the scope of the present invention.

As shown in fig. 1 to 8, the automatic drug delivery system of the present invention comprises a support frame 55, a hook 56, an infusion bag 53, a powder drug bottle 52, a dropper 54, a dropper mouthpiece 10, a drug bottle mouthpiece 9, an intravenous injection automatic replacement device, an infusion manifold 15, an infusion tube 57, a switch valve 59 and an infusion needle 58, wherein the infusion bag 53 is fixedly arranged on the support frame 55 through the hook 56, the lower end of the infusion bag 53 is connected into the dropper mouthpiece 10 through the dropper 54, preferably, the dropper 54 in the dropper mouthpiece 10 can be tightened through a fastening rope or the like in order to ensure firm connection, and a sealing film is arranged at the end of the dropper 54, so as to ensure that the drug solution flows out after puncturing the sealing film; the powder medicine bottle 52 is fastened in the medicine bottle mouth-piece 9 in an inverted manner, if the bottle mouth in the medicine bottle mouth-piece 9 can be fastened in the medicine bottle mouth-piece 9 through a fastening rope, the lower ends of the dropper mouth-piece 10 and the medicine bottle mouth-piece 9 are respectively fastened with the top cover 2 of the automatic intravenous injection replacing device, the upper end of the infusion main pipe 15 is connected with the bottom cover 3 of the automatic intravenous injection replacing device, the lower end of the infusion main pipe 15 is connected with an infusion tube 57, the other end of the infusion tube 57 is provided with an infusion needle 58, and a switch valve 59 is arranged on the infusion tube 57 and used for controlling the delivery of the liquid medicine, wherein the automatic intravenous injection replacing device comprises a shell main body 1, a top cover 2, a bottom cover 3, a needle tube replacing driving module 7 and a liquid medicine delivery box 8, the top cover 2 is arranged at the top end of the shell main body 1, liquid medicine delivery box 8 detachable sets up in that shell body 1 is inside and be located the needle tubing and change 7 lower extremes of drive module, the upper end of top cap 2 is provided with liquid medicine burette mouthpiece region 6 and powder medicine bottle mouthpiece region 5 side by side, evenly be provided with two piece at least burette mouthpiece 10 in liquid medicine burette mouthpiece region 6, evenly be provided with the medicine bottle mouthpiece 9 with the same quantity of burette mouthpiece 10 in powder medicine bottle mouthpiece region 5, burette mouthpiece 10 upper end is connected with the burette, lower extreme detachable connects in top cap 2, medicine bottle mouthpiece 9 upper end is connected with the medicine bottle lid, lower extreme detachable connects in top cap 2. The needle tube replacement driving module 7 is provided with needle tubes A11 with the same number as the dropper mouthpiece 10, and is provided with needle tubes B12 with the same number as the medicine bottle mouthpiece 9, the needle tubes A11 and the needle tubes B12 are respectively positioned below the dropper mouthpiece 10 and the medicine bottle mouthpiece 9, and can independently lift and fall under the driving of the needle tube replacement driving module 7, so as to be capable of extending and retracting in the dropper mouthpiece 10 and the medicine bottle mouthpiece 9, puncture sealing membranes with a medicine bottle cap and/or a dropper, so that medicine liquid and/or medicine powder can flow out, the lower ends of the needle tubes A11 and the needle tubes B12 are connected to the upper end of the medicine liquid conveying box 8 through a detachable tube A13, the lower end of the medicine liquid conveying box 8 is connected to the main tube 15 on the bottom cover 3 through a detachable tube B14, the medicine liquid conveying box 8 is provided with independent chambers with the same number as the dropper mouthpiece 10 through a partition plates 45, each independent chamber is connected with an A11 and a needle tube B12 through a detachable tube A13, and the plane formed by the axes of the connected needle tube A11 and needle tube B12 is parallel to the partition plate 45;

as shown in fig. 2 and 4-7, the needle tube replacement driving module 7 includes a fixed base plate 16, a lifting block 18, a supporting arm 19, a vertical guide bar 24, a claw 20, a triangular slider 26, a swing link 31, an electromagnet 33, an iron block 34, a lead screw a30, a hollow lead screw sleeve a29 and a driving motor 51, the fixed base plate 16 is horizontally disposed inside the housing main body 1 in a detachable or fixed manner, the fixed base plate 16 is provided with a through hole 17 and an elongated hole 35, the lifting block 18 is disposed at the upper end of the fixed base plate 16, the two ends of the lifting block 18 are provided with the vertical guide bars 24, the fixed base plate 16 or the housing main body 1 is provided with a guide groove matched with the vertical guide bars 24, so that the lifting block 18 can only lift up and down, the supporting arm 19 is disposed at the side of the lifting block 18, the claw 20 is disposed at the other end of the supporting arm 19, the claw 20 is, removable pipe A13 that is connected with needle tubing A11 and needle tubing B12 passes and connects in the top of liquid medicine carrying box 8 behind the hole 17, be provided with triangle recess 25 in the bottom of elevator 18, the triangle main part 28 of triangle slider 26 is embedded in triangle recess 25, and the rotating pin 27 of triangle slider 26 passes behind the elongated hole 35 and is connected with the one end rotation of the pendulum rod 31 of PMKD 16 lower extreme, the middle part of pendulum rod 31 passes through the rotation of pendulum pin 32 and sets up on PMKD 16, and the other one end of pendulum rod 31 is provided with iron plate 34. The bottom end of the fixed bottom plate 16 is also fixedly provided with a driving motor 51, the output end of the driving motor 51 is connected with a hollow screw rod sleeve A29, a screw rod 30 is engaged in the hollow screw rod sleeve A29, the axes of the hollow screw rod sleeve A29, the screw rod 30 and the output end of the driving motor 51 are superposed, the plane formed by the axes and the central axis of the fixed bottom plate 16 is a vertical plane, the upper outer surface of the screw rod 30 is provided with a guide groove structure along the axis direction, the fixed bottom plate 16 is provided with a guide rail structure matched with the guide groove, so that the screw rod 30 can only slide along the axis direction and can not rotate relative to the axis, the screw rod 30 is provided with an electromagnet 33 matched with an iron block 34, when a corresponding needle tube needs to be driven to perform puncture action, only the corresponding electromagnet 33 needs to be selected to be electrified, so that the electromagnet 33 absorbs the iron block 34 and the driving motor, thereby drive hollow lead screw cover A29 and rotate to make lead screw 30 carry out the horizontal slip for PMKD 16, drive the electro-magnet 33 that inhales and the corresponding pendulum rod 31 of iron plate 34 and rotate, thereby make triangle slider 26 slide, thereby make elevator 18 go up and down through triangle slider 26 butt triangle recess 25, thereby drive the jack catch and go up and down, thereby drive the needle tubing and go up and down, accomplish the puncture or change dressings action.

Preferably, the slope of the triangular body 28 at the lower end of the mouthpiece section 5 of the powder vial is greater than the slope of the triangular body 28 at the lower end of the mouthpiece section 6 of the liquid medicine dropper, so that the needle tube B12 penetrates into the interior of the vial cap earlier than the needle tube A11.

Preferably, the axial direction of the elongated hole 35 is parallel to the axial direction of the screw rod 30; preferably, a sliding strip 36 is further disposed at the upper end of the fixed base plate 16 and on both sides of the elongated hole 35, and a sliding groove matched with the sliding strip 36 is disposed at the bottom of the triangular slider 26, so as to ensure that the triangular slider 26 can stably slide on the fixed base plate 16.

Preferably, the clamping jaw 20 comprises an upper clamping jaw 21, a lower clamping jaw 22 and a locking end plate 23, one end of each of the upper clamping jaw 21 and the lower clamping jaw 22 is rotatably connected to the supporting arm 19, the other end of each of the upper clamping jaw 21 and the lower clamping jaw 22 is provided with a locking end plate 23, and the locking end plate 23 is locked through a locking bolt.

Preferably, the medicine bottle mouth-piece 9, the dropper mouth-piece 10, the needle tube A11 and the needle tube B12 are two, the chamber comprises a chamber A and a chamber B, the detachable tube B14 comprises a branch tube A48, a branch tube B49 and a manifold 50, the branch tube A48 is detachably connected with the bottom end of the chamber A, the branch tube B49 is detachably connected with the chamber B47, the manifold 50 is detachably connected with a bottom cover, and the bottom cover is detachably connected with the infusion manifold 15.

Preferably, considering that the medicine powder stored in the medicine powder bottle is not easy to flow out after the needle tube penetrates into the medicine bottle, a negative pressure pump is arranged to suck out the medicine powder, as shown in fig. 8, the needle tube B12 comprises a needle tube main body 38, a puncture needle 37 is arranged at the top end of the needle tube main body 38, a piston 43 is arranged at the bottom end of the needle tube main body 38 in a sliding manner, the piston 43 is connected with a hydraulic rod 42, the hydraulic rod 42 is driven to extend and retract through a hydraulic telescopic cylinder 41, the hydraulic telescopic cylinder 41 is fixed on a mounting seat 40, the fixed mounting seat 40 is fixed on the needle tube main body 38 through a motor mounting seat 39, a detachable tube interface 44 is arranged on the side wall of the needle tube main body 38, the detachable tube interface 44 is used for connecting with a detachable tube a13, and one-way valves are arranged on the puncture needle 37 and the detachable tube interface 44, so that when the piston 43 is, the check valve in the detachable tube port 44 is closed so that the medicine powder can be sucked into the needle tube body 38 by the negative pressure, and when the piston 43 is driven to move upward by the hydraulic cylinder 41, the check valve in the puncture needle 37 is closed and the check valve in the detachable tube port 44 is opened so that the medicine powder can be introduced into the chamber.

Preferably, a control panel 4 is disposed on a side wall or a top cover of the housing body 1, and an operation button, such as a start button, is disposed on the control panel 4, and the infusion and liquid change operations are automatically completed by pressing the start button. Preferably, an input interface is arranged on the control panel 4 for inputting the medical solution to be injected by the patient, and the automatic intravenous injection replacement device automatically generates an operation instruction to be performed for replacing the medical solution according to the input content, and executes the operation instruction after the user presses the start button.

Preferably, the top cover 2 and the bottom cover 3 are arranged on the housing main body 1 in a manner of rotating connection;

preferably, the word "powder medicine bottle mouthpiece region" is marked on the powder medicine bottle mouthpiece region 5, the word "liquid medicine dropper mouthpiece region" is marked on the liquid medicine dropper mouthpiece region 6, and the medicine bottle mouthpiece 9 and the dropper mouthpiece 10 in each mouthpiece region are numbered, for example, the leftmost dropper mouthpiece 10 in the liquid medicine dropper mouthpiece region 6 is set as number 1, the number is marked on the liquid medicine dropper mouthpiece region 6, the numbering is carried out sequentially from left to right, and the number is marked; similarly, set up powder medicine bottle mouth-piece 9 of leftmost end in mouth-piece district 5 to 1 to with this serial number sign in powder medicine bottle mouth-piece district 5, numbering in proper order from a left side to the right side, and will number and sign.

Preferably, when inputting contents in the control panel 4, the control panel 4 generates a liquid medicine replacement operation command according to the liquid medicine or medicine bottle input connected by each number, if the number 1 dropper mouthpiece 10 is connected to the liquid medicine a, the number 1 medicine bottle mouthpiece 9 is connected to the powder medicine bottle X, the number 2 dropper mouthpiece 10 is connected to the liquid medicine B, and the number 2 medicine bottle mouthpiece 9 is connected to the liquid medicine B: the electromagnet 33 corresponding to the iron block 34 at the tail end of the swing rod 31 corresponding to the lower end of the lifting block 18 for driving the needle tube A11 in the dropper mouthpiece 10 to perform puncturing action is electrified, the electromagnet 33 corresponding to the iron block 34 at the tail end of the swing rod 31 corresponding to the lower end of the lifting block 18 for driving the needle tube B12 in the dropper mouthpiece 9 of No. 1 to perform puncturing action is electrified, the driving motor 51 rotates forwards to drive the screw rod 30 to retract into the hollow screw rod sleeve A29, so that the triangular main body 28 slides along the left end to drive the lifting block 18 to ascend, so that the needle tube A and the needle tube B at the position of No. 1 are punctured simultaneously, because the inclined gradient of the triangular main body 28 corresponding to the lower end of the powder medicine bottle mouthpiece 5 is greater than the inclined gradient of the triangular main body 28 corresponding to the lower end of the medicine liquid mouthpiece 6, the needle tube B12 penetrates into the powder medicine bottle earlier to control the driving motor 51 to suspend rotation, and control the, the piston 43 is driven to move downward, at which time the check valve in the puncture needle 37 is opened and the check valve in the detachable tube port 44 is closed, so that the medicinal powder is sucked into the needle tube main body 38 by the negative pressure, the hydraulic telescopic cylinder 41 is then driven to extend the hydraulic rod 42, pushing the piston 43 upward, at which time, the one-way valve in the puncture needle 37 is closed, the one-way valve in the detachable tubing interface 44 is opened, thereby pushing the medicine powder in the syringe main body 38 into the corresponding chamber a through the detachable tube a13, and the surplus gas pushed in the syringe main body 38 escapes from the syringe a11, and at this time, the switch valve 59 is closed, the motor 51 is continuously driven to rotate forwards, the needle tube A11 is continuously lifted to pierce the sealing film at the tail end of the dropper, so that the liquid medicine flows into the chamber A, the liquid medicine dissolves the powder, the control switch valve 59 is in an open state at the moment, and the mixed liquid medicine flows out from the infusion main pipe 15, thereby completing the automatic infusion of the mixture of the liquid medicine and the medicinal powder; after the liquid medicine A is output, the electromagnet corresponding to the No. 1 position is powered off, the driving motor 51 rotates reversely to drive the screw rod 30 to reset, the electromagnet corresponding to the No. 2 position is powered on, meanwhile, the needle tube A11 and the needle tube B12 at the No. 2 position are driven to puncture, finally, the same liquid medicine B flows into the cavity B together for transfusion, the infusion is reminded after the transfusion is finished, the intravenous injection operation is finished, and the whole process is operated after an operator presses a 'start' button.

The automatic drug delivery system of the present invention works as follows: for convenience of explanation, the powder medicine bottle mouthpiece region 5 and the liquid medicine dropper mouthpiece region 6 both include 2 mouthpiece tubes for explanation, and the mouthpiece tubes are numbered according to the above rules, and the dropper mouthpiece tube 1 10 is connected to the liquid medicine a, the medicine bottle mouthpiece tube 1 is connected to the powder medicine bottle X, the dropper mouthpiece tube 2 10 is connected to the liquid medicine B, and the medicine bottle mouthpiece tube 2 is connected to the liquid medicine B, of course, the present invention is not limited to the above combination, and the number of the mouthpiece tubes is only 2. An operator (such as medical staff) hangs the infusion bag 53 on the support frame 55 through the hook 56, selects a corresponding needle tube according to the liquid medicine or powder medicine bottle to be infused by a patient, selects the needle tube A11 as the liquid medicine, selects the needle tube B12 as the powder medicine bottle, opens the top cover 2, opens the claws 20, clamps the corresponding needle tube A11 or B12 in the claws 20, fixes the claws 20, inserts the detachable tube A13 into the tail end of the needle tube A11 or B12, opens the bottom cover 3, then inserts the other end of the detachable tube A13 into the upper end of the liquid medicine conveying box 8, fixes the liquid medicine conveying box 8 in the shell main body 1, inserts the detachable tube B14 into the lower end of the liquid medicine conveying box 8, inserts the detachable tube B14 into the lower end of the bottom cover 3 to connect the bottom cover 3 with the infusion main tube 15, then covers the bottom cover 3 and the top cover 2, inserts the corresponding dropper mouthpiece 10 or the powder mouthpiece 9 into the top cover 2, and places the powder medicine bottle in an inverted orientation, the dropper with the seal film at the tail end is fixedly placed in the dropper mouthpiece 10, and the preparation work is completed. Of course, it is preferable that the above operation be performed in a sterile environment, or after the apparatus is sterilized, and the details thereof will not be described herein. After the nurse pricks the infusion needle into the patient, the nurse or the patient presses the 'start' button on the control panel 4, and then the needle tube replacement driving module 7 acts according to the instruction described above, so that the full-automatic medicine delivery is completed. Whether the liquid medicine or the medicinal powder is conveyed or not can be measured according to a sensor or a liquid level meter and the like, and the details are not repeated. After the infusion is finished, an alarm unit can be arranged in the automatic intravenous injection replacement device, and therefore the nurse is reminded to pull out the needle by sound and light alarm. Of course, the control panel 4 is provided with a "stop button" for safety operation, and the on-off valve in the infusion tube 57 is controlled to be closed, thereby preventing the medical fluid from entering the human body.

Known through the above description, the automatic medicine conveying system of this application, can adapt to the intravenous route operation that needs to add powder in the liquid medicine, the whole process is automatic to be accomplished, high convenience and fast, use screw drive mechanism as the driving source of needle tubing puncture action, control puncture stroke that can be very accurate, and screw drive mechanism can provide more stable and bigger puncture force, and simultaneously, use the electro-magnet, the iron plate is as the separation and reunion means, and through pendulum rod drive mode, the puncture action of the rotation conversion for the needle tubing with the motor, can accomplish the conversion of this action when reducing vertical dimension, and is ingenious in structure, whole conveying system follows the liquid medicine, the input of powder all need not dispense the operation, can infuse when dispensing, and the efficiency is improved.

Claims

1. An automatic medicine conveying system comprises a support frame (55), a hook (56), an infusion bag (53), a powder medicine bottle (52), a dropper (54), a dropper mouthpiece (10), a medicine bottle mouthpiece (9), an intravenous injection automatic replacing device, an infusion main pipe (15), an infusion pipe (57), a switch valve (59) and an infusion needle (58), wherein the infusion bag (53) is fixedly arranged on the support frame (55) through the hook (56), the lower end of the infusion bag (53) is connected into the dropper mouthpiece (10) through the dropper (54), a sealing film is arranged at the tail end of the dropper (54), the powder medicine bottle (52) is reversely buckled and fastened in the medicine bottle mouthpiece (9), the lower ends of the dropper mouthpiece (10) and the medicine bottle mouthpiece (9) are respectively fastened with a top cover (2) of the intravenous injection automatic replacing device, the upper end of the infusion main pipe (15) is connected with a bottom cover (3) of the intravenous injection automatic replacing device, the lower end of a main infusion pipe (15) is connected with an infusion tube (57), the other end of the infusion tube (57) is provided with an infusion needle (58), a switch valve (59) is arranged on the infusion tube (57) and used for controlling the delivery of liquid medicine, wherein the automatic intravenous injection replacement device comprises a shell main body (1), a top cover (2), a bottom cover (3), a needle tube replacement driving module (7) and a liquid medicine delivery box (8), the top cover (2) is arranged at the top end of the shell main body (1), the bottom cover (3) is arranged at the bottom end of the shell main body (1), the needle tube replacement driving module (7) is fixedly arranged inside the shell main body (1), the liquid medicine delivery box (8) is detachably arranged inside the shell main body (1) and is positioned at the lower end of the needle tube replacement driving module (7), the upper end of the top cover (2) is, at least two dropper mouthpiece tubes (10) are uniformly arranged in the liquid medicine dropper mouthpiece area (6), the medicine bottle mouthpiece tubes (9) with the same number as the dropper mouthpiece tubes (10) are uniformly arranged in the powder medicine bottle mouthpiece area (5), the upper ends of the dropper mouthpiece tubes (10) are connected with the droppers, the lower ends of the dropper mouthpiece tubes are detachably connected with the top cover (2), the upper ends of the medicine bottle mouthpiece tubes (9) are connected with the medicine bottle cap, the lower ends of the medicine bottle mouthpiece tubes are detachably connected with the top cover (2), needle tubes A (11) with the same number as the dropper mouthpiece tubes (10) are clamped on the needle tube replacement driving module (7), needle tubes B (12) with the same number as the medicine bottle mouthpiece tubes (9) are clamped on the needle tube replacement driving module (7), the needle tubes A (11) and the needle tubes B (12) are respectively positioned below the dropper mouthpiece tubes (10) and the medicine bottle mouthpiece tubes (9), and, thereby being capable of stretching and contracting in the dropper mouthpiece (10) and the medicine bottle mouthpiece (9) to puncture the medicine bottle cap and/or the dropper sealing membrane, so that the medicine liquid and/or the medicine powder can flow out, the lower ends of the needle tubes A (11) and the needle tubes B (12) are connected with the upper end of a liquid medicine conveying box (8) through a detachable tube A (13), the lower end of the liquid medicine conveying box (8) is connected with a main infusion tube (15) on a bottom cover (3) through a detachable tube B (14), the liquid medicine conveying box (8) is provided with independent chambers with the same number as that of dropper mouthpiece tubes (10) through a partition plate (45), each independent chamber is connected with a needle tube A (11) and a needle tube B (12) through the detachable tube A (13), and the plane formed by the axes of the connected needle tube A (11) and needle tube B (12) is parallel to the partition plate (45).

2. The automated drug delivery system of claim 1, wherein: the needle tube replacement driving module (7) comprises a fixed base plate (16), a lifting block (18), a supporting arm (19), vertical guide bars (24), clamping jaws (20), a triangular sliding block (26), a swinging rod (31), an electromagnet (33), an iron block (34), a screw rod A (30), a hollow screw rod sleeve A (29) and a driving motor (51), wherein the fixed base plate (16) is horizontally arranged inside the shell main body (1) in a detachable or fixed arrangement mode, a through hole (17) and a long hole (35) are formed in the fixed base plate (16), the lifting block (18) is arranged at the upper end of the fixed base plate (16), the vertical guide bars (24) are arranged at two ends of the lifting block (18), guide grooves matched with the vertical guide bars (24) are formed in the fixed base plate (16) or the shell main body (1), so that the lifting block (18) can only lift up and down, a supporting arm (19) is arranged on the side edge of the lifting block (18), a claw (20) is arranged at the other end of the supporting arm (19), the claw (20) is used for clamping the needle tube A (11) or the needle tube B (12), a detachable tube A (13) connected with the needle tube A (11) and the needle tube B (12) passes through the through hole (17) and then is connected with the top end of the liquid medicine conveying box (8), a triangular groove (25) is arranged at the bottom end of the lifting block (18), a triangular main body (28) of a triangular sliding block (26) is embedded in the triangular groove (25), and a rotating pin (27) of the triangular sliding block (26) penetrates through the elongated hole (35) and then is rotatably connected with one end of a swing rod (31) at the lower end of the fixed bottom plate (16), the middle part of the swing rod (31) is rotatably arranged on the fixed bottom plate (16) through a swing pin (32), and an iron block (34) is arranged at the other end of the swing rod (31).

3. The automated drug delivery system of claim 2, wherein: the driving motor (51) is fixedly arranged at the bottom end of the fixed base plate (16), the output end of the driving motor (51) is connected with a hollow screw rod sleeve A (29), a screw rod A (30) is engaged in the hollow screw rod sleeve A (29), the screw rod A (30) and the axis of the output end of the driving motor (51) coincide, the plane formed by the axis and the central axis of the fixed base plate (16) is a vertical plane, a guide groove structure is arranged on the upper outer surface of the screw rod A (30) along the axis direction, a guide rail structure matched with the guide groove is arranged on the fixed base plate (16), so that the screw rod A (30) can only slide along the axis direction and cannot rotate relative to the axis, an electromagnet (33) matched with an iron block (34) is arranged on the screw rod A (30), so that when a corresponding needle tube needs to be driven to perform puncture action, only need select corresponding electro-magnet (33) to be electrified, thereby make electro-magnet (33) inhale with iron plate (34), driving motor (51) rotate, it rotates to drive hollow lead screw cover A (29), thereby make lead screw A (30) carry out the horizontal slip for PMKD (16), the electro-magnet (33) that the drive was inhaled and iron plate (34) corresponding pendulum rod (31) rotate, thereby make triangle slider (26) slip, thereby make elevator (18) go up and down through triangle slider (26) butt triangle recess (25), thereby it goes up and down to drive the jack catch, thereby it goes up and down to drive the needle tubing, accomplish the puncture or change dressings action.

4. The automated drug delivery system of claim 3, wherein: the inclination of the triangular main body (28) corresponding to the lower end of the powder medicine bottle mouth-piece area (5) is larger than that of the triangular main body (28) corresponding to the lower end of the liquid medicine dropper mouth-piece area (6), so that the needle tube B (12) pierces the inside of the medicine bottle cap earlier than the needle tube A (11).

5. The automated drug delivery system of claim 4, wherein: the jack catch (20) include first jack catch (21), second jack catch (22) and locking end plate (23), and first jack catch (21) rotate with second jack catch (22) one end and connect in support arm (19), and first jack catch (21) and second jack catch (22) other end all are provided with locking end plate (23), and locking end plate (23) are locked through the locking bolt.

6. The automated drug delivery system of claim 1 or 2, wherein: medicine bottle mouth-piece (9), burette mouth-piece (10), needle tubing A (11), needle tubing B (12) are two, the cavity includes cavity A and cavity B, removable pipe B (14) are including bleeder A (48), bleeder B (49) and house steward (50), connection can be dismantled to bleeder A (48) and cavity A bottom, connection can be dismantled in bleeder B (49) and cavity B (47), house steward (50) detachable connects in the bottom, infusion house steward (15) that the bottom detachable connects.

7. The automated drug delivery system of claim 1 or 2, wherein: the needle tube B (12) comprises a needle tube main body (38), a puncture needle (37) is arranged at the top end of the needle tube main body (38), a piston (43) is arranged at the bottom end of the needle tube main body (38) in a sliding mode, the piston (43) is connected with a hydraulic rod (42), the hydraulic rod (42) is driven to stretch through a hydraulic stretching cylinder (41), the hydraulic stretching cylinder (41) is fixed on a mounting seat (40), the fixing mounting seat (40) is fixedly arranged on the needle tube main body (38) through a motor mounting frame (39), a detachable tube interface (44) is arranged on the side wall of the needle tube main body (38), the detachable tube interface (44) is used for being connected with a detachable tube A (13), and one-way valves are arranged on the puncture needle tube (37) and the detachable tube interface (44), so that when the piston (43) is driven by the hydraulic stretching cylinder (41) to move downwards, the one-way, the one-way valve in the detachable tube port (44) is closed so that the powder can be sucked into the needle tube body (38) by negative pressure, and when the piston (43) is driven to move upward by the hydraulic telescopic cylinder (41), the one-way valve in the puncture needle (37) is closed and the one-way valve in the detachable tube port (44) is opened so that the powder can be introduced into the chamber.

8. The automated drug delivery system of claim 1, wherein: a control panel (4) is arranged on the side wall or the top cover of the shell main body (1), and an operation button is arranged on the control panel (4).

9. The automated drug delivery system of claim 1, wherein: an input interface is arranged on the control panel (4) and is used for inputting the type of the medicine which needs to be injected by the patient.

10. The automated drug delivery system of claim 1, wherein: the top cover (2) and the bottom cover (3) are arranged on the shell main body (1) in a rotating connection mode.