Medicine micro pump capable of being automatically continued

Abstract

The utility model provides a medicine micro pump capable of being refilled automatically, which comprises a main machine, at least two fixing tubes used for fixing an injector are connected on the main machine in a sliding mode, the main machine is connected with the fixing tubes through a positioning structure, and the main machine is connected with a driving block used for corresponding to the fixing tubes through a driving structure in a sliding mode. One driving block moves and is gradually decelerated when 10ml of medicine is left in the corresponding injector, and meanwhile, the other driving block is gradually accelerated, so that the sum of the flows of the medicine guided out by all the injectors is kept consistent, and the purpose of continuous injection is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of medicine, in particular, a kind of medicine micro pump of automatic continuation pump. BACKGROUND

[0002] At present, the Chinese patent with the authorization announcement No.CN217286730U discloses a micro-injection pump, comprising an injection pump main body and a syringe fixing structure arranged on the injection pump main body;The syringe fixing structure comprises a guide rail, a moving seat, a positioning structure and a fixing sleeve;The guide rail is arranged along the length direction of the injection pump main body and connected with the injection pump main body;The moving seat is arranged in cooperation with the guide rail so as to be movable along the guide rail, and the moving seat has a connecting hole;The positioning structure can fix the moving seat;The fixing sleeve is inserted into the connecting hole and threadedly connected with the connecting hole, and the fixing sleeve has a fixing hole matched with the syringe, and the fixing hole is coaxial with the connecting hole.The fixing sleeve is threadedly connected with the connecting hole, and can be disassembled by rotating.

[0003] The fixing sleeve with different diameters of fixing holes is equipped, and the appropriate fixing sleeve is selected according to the syringe, so that different syringes can be reliably fixed.

[0004] However, when injecting norepinephrine, two tubes of medicine are often continuously injected, and this micro-injection pump needs to remove the injected syringe from the fixing sleeve, and then place the to-be-injected syringe on the fixing sleeve, which will cause an injection gap of 1-2 minutes, which is risky for patients. UTILITY MODEL CONTENT

[0005] Therefore, the utility model aims to provide a medicine micro pump with automatic continuation pump to achieve continuous injection effect.

[0006] In order to solve the above technical problems, the technical scheme of the utility model is as follows: a medicine micro pump with automatic continuation pump, comprising a host, at least two fixing tubes for fixing syringes are slidably connected on the host, the host is connected with the fixing tube through a positioning structure, and the host is slidably connected with a driving block corresponding to the fixing tube through a driving structure,

[0007] One driving block moves and gradually slows down when the remaining medicine in the corresponding syringe is 10ml, and the other driving block gradually speeds up, so that the sum of the flow rates of all syringes is consistent.

[0008] The technical scheme is realized as follows: the syringe is arranged in the fixed tube; the fixed tube is moved towards the driving block; the pressing hand of the syringe is in contact with the driving block; then the fixed tube is fixed through the positioning structure; one driving block is moved towards the fixed tube through the driving structure; when the medicine in the syringe is less than 10ml, the speed of the syringe is gradually reduced; meanwhile, the other driving block is gradually accelerated, so that the flow rate of the two syringes is kept consistent, thereby realizing the effect of continuous injection.

[0009] As a preferred scheme of the utility model, the positioning structure comprises slide rails, slide grooves and locking bolts, the slide rails are fixed on the main machine, the length directions of the slide rails are parallel, the slide grooves are arranged on the fixed tube and are slidably connected with the slide rails, and the locking bolts are threadedly connected with the fixed tube and are used for abutting against the slide rails.

[0010] The technical scheme is realized as follows: the fixed tube is moved along the length direction of the slide rails; after the pressing hand of the syringe is in contact with the driving block, the locking bolt is screwed; and the fixed tube is positioned through the friction force.

[0011] As a preferred scheme of the utility model, the driving structure comprises a servo motor, a screw rod, a controller, an infrared limit switch, a guide groove and a connecting rod, the servo motor is fixed in the main machine, the screw rod is rotatably connected with the main machine and is driven and rotated by the servo motor, the infrared limit switch is fixed on the main machine and is used for corresponding to the plunger of the syringe, the guide groove is arranged on the main machine, one end of the connecting rod is threadedly connected with the screw rod, the other end of the connecting rod passes through the guide groove and is connected with the driving block, the servo motor and the infrared limit switch are electrically connected with the controller, and the length direction of the screw rod, the length direction of the guide groove and the axis of the fixed tube are parallel.

[0012] The technical scheme is realized as follows: the servo motor is started; one driving block is moved along the length direction of the guide groove and keeps uniform speed; when the plunger corresponds to the infrared limit switch, the medicine is less than 10ml; the infrared limit switch sends an electric signal to the controller; the driving block being moved is linearly decelerated; the other driving block is linearly accelerated; the sum of the flow rates of the two syringes is kept balanced; and the effect of continuous injection is realized.

[0013] As a preferred scheme of the utility model, the fixed tube is provided with an adjusting structure for limiting the syringe.

[0014] The technical scheme is realized as follows: the adjusting structure is used for adapting to syringes with different outer diameters and improving practicability.

[0015] As an optimal scheme of the utility model, the adjusting structure includes adjusting rod, adjusting ring, a plurality of adjusting rods are evenly distributed along the axis of the fixed tube and are slidably connected in the fixed tube, the fixed tube is rotationally connected with the coaxially arranged adjusting ring, the adjusting ring rotates and moves the plurality of adjusting rods along the radial direction of the fixed tube through the transmission assembly.

[0016] The above technical solution is realized, the syringe is placed in the fixed tube, the adjusting ring is rotated, all the adjusting rods are synchronously moved through the transmission assembly, the adjusting rod is in contact with the outer sleeve of the syringe, different outer diameters of the syringe are adapted, and practicality is improved.

[0017] As an optimal scheme of the utility model, the transmission assembly includes a screw sleeve, a straight slot, a straight bar, a first inclined surface, a second inclined surface and an elastic member, the straight slot is arranged on the inner wall of the fixed tube, the straight bar is fixed on the screw sleeve and is slidably connected in the straight slot, the screw sleeve is threadedly connected with the adjusting ring, the first inclined surface is arranged at the end of the screw sleeve, the second inclined surface is arranged at the end of the adjusting rod and is in contact with the first inclined surface, and the two ends of the elastic member are respectively connected with the fixed tube and the adjusting rod.

[0018] The above technical solution is realized, the adjusting ring is forwardly rotated, the screw sleeve is moved along the length direction of the straight slot through the transmission effect of the thread, at the same time, the adjusting rod is moved along the radial direction of the fixed tube through the contact between the first inclined surface and the second inclined surface, so that the adjusting rod is in contact with the outer sleeve of the syringe, the screw sleeve is positioned through the self-locking property of the thread; similarly, when the adjusting ring is reversely rotated, the adjusting rod is reset through the elastic force of the elastic member.

[0019] As an optimal scheme of the utility model, the adjusting rod is provided with a clamping arc surface at the end away from the elastic member.

[0020] The above technical solution is realized, the syringe is placed more stably. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is an external structure schematic view of the embodiment;

[0022] Figure 2 It is a position schematic view of the adjusting ring;

[0023] Figure 3 It is a cross section schematic view of the transmission assembly;

[0024] Figure 4 It is a structure schematic view of the adjusting rod.

[0025] Fixing pipe 2, positioning structure 3, 31 sliding rail, 32 sliding groove, 33 locking bolt, 41 adjusting rod, 42 adjusting ring, 5 transmission assembly, 51 screw sleeve, 52 straight slot, 53 straight bar, 54 first inclined surface, 55 second inclined surface, 56 elastic piece, 6 clamping arc surface, 7 driving structure, 71 screw rod, 72 infrared limit switch, 73 guide groove, 74 connecting rod, 8 driving block. DETAILED DESCRIPTION

[0026] The specific embodiments of the utility model are further described in detail below in combination with the drawings, so that the technical scheme of the utility model is easier to understand and master.

[0027] A medicine micro pump capable of automatically continuing pumping, comprising a host computer 1, two fixing pipes 2 for fixing syringes are slidably connected on the host computer 1, and the host computer 1 is connected with the fixing pipes 2 through a positioning structure 3.

[0028] The locking bolt 33 is threadedly connected on the fixing pipe 2 and is used for abutting against the sliding rail 31.

[0029] Two syringes are respectively arranged in the two fixing pipes 2. The fixing pipe 2 is provided with an adjusting structure for limiting the syringes. The adjusting structure comprises an adjusting rod 41 and an adjusting ring 42. A connecting groove is formed on the inner wall of the fixing pipe 2, and the depth direction of the connecting groove is arranged along the radial direction of the fixing pipe 2. A plurality of connecting grooves are evenly distributed along the axis of the fixing pipe 2. The adjusting rod 41 is slidably connected in the connecting groove.

[0030] The adjusting ring 42 is rotationally connected to the end of the fixing pipe 2. The adjusting ring 42 is rotated and drives all the adjusting rods 41 to move along the radial direction of the fixing pipe 2 through a transmission assembly 5, so that the adjusting rod 41 abuts against the outer sleeve of the syringe.

[0031] The transmission assembly 5 comprises a screw sleeve 51, a straight slot 52, a straight bar 53, a first inclined surface 54, a second inclined surface 55 and an elastic piece 56. The straight slot 52 is formed on the inner wall of the fixing pipe 2, and the length direction of the straight slot 52 is parallel to the axial direction of the fixing pipe 2. The straight bar 53 is fixed on the screw sleeve 51 and slidably connected in the straight slot 52, and the length direction of the straight bar 53 is parallel to the length direction of the screw sleeve 51. The screw sleeve 51 is coaxially arranged with the fixing pipe 2.

[0032] The screw sleeve 51 is threadedly connected with the adjusting ring 42, the first inclined surface 54 is arranged at the end of the screw sleeve 51, and the second inclined surface 55 is arranged at the end of the adjusting rod 41 and abuts against the first inclined surface 54. The elastic member 56 is a spring, and the two ends of the elastic member 56 are connected with the inner wall of the connecting groove and the adjusting rod 41 respectively.

[0033] The clamping arc surface 6 is arranged at the end of the adjusting rod 41 away from the elastic member 56.

[0034] The host 1 is slidably connected with the driving block 8 corresponding to the fixed tube 2 through the driving structure 7. The driving structure 7 comprises a servo motor, a screw rod 71, a controller, an infrared limit switch 72, a guide groove 73 and a connecting rod 74. The servo motor is fixed in the host 1, the screw rod 71 is rotatably connected to the host 1 and is driven to rotate by the servo motor. The axis of the screw rod 71 is parallel to the axis of the fixed tube 2.

[0035] The infrared limit switch 72 is fixed to the host 1 and is used to correspond to the plunger of the syringe. The guide groove 73 is arranged on the host 1, and the length direction of the guide groove 73 is parallel to the axis of the screw rod 71. One end of the connecting rod 74 is threadedly connected with the screw rod 71, and the other end passes through the guide groove 73 and is connected with the driving block 8. The servo motor and the infrared limit switch 72 are electrically connected with the controller.

[0036] The controller is a PLC controller.

[0037] In use, two syringes are fixed in the two fixed tubes 2 respectively, which are a first syringe and a second syringe, the fixed tube 2 is pushed so that the pressing hand of the two syringes abuts against the two driving blocks 8. Then the fixed tube 2 is fixed. When the plunger of the first syringe passes through the infrared limit switch 72, one driving block 8 moves and slows down gradually when the remaining medicine in the first syringe is 10ml, that is, the rotation speed of the screw rod 71 linearly slows down until the medicine injection is completed. At the same time, the other driving block 8 gradually linearly speeds up, that is, the moving speed of the pressing hand of the second syringe linearly speeds up, so that the sum of the flow rates of the two syringes is kept consistent, thereby greatly improving the protection effect on the patient.

[0038] The controller is electrically connected with a buzzer, the buzzer is started when the driving block starts to slow down and speed up, thereby reminding the staff to prepare for the pump. The host 1 is provided with a display, and the display can display the speed of the driving block 8, the injection time of the syringe, the remaining time of the pump after the injection of the syringe, and the number of remaining syringes.

[0039] Of course, the above is only a typical example of the present application, in addition to this, the present application can have other various specific implementation manners, and any technical solution formed by equivalent replacement or equivalent transformation falls within the scope of the present application.

Claims

1. A self-replenishing drug micro-pump comprising a main unit (1), characterized in that: The host (1) is slidably connected with at least two fixing tubes (2) for fixing syringes, the host (1) is connected with the fixing tubes (2) through positioning structures (3), the host (1) is slidably connected with driving blocks (8) corresponding to the fixing tubes (2) through driving structures (7), One driving block (8) moves and gradually slows down when the remaining medicine in the corresponding syringe is 10ml, at the same time, the other driving block (8) gradually speeds up, so that the sum of the flow rates of all the syringes is kept consistent.

2. The refillable micropump of claim 1, wherein: The positioning structures (3) comprise slide rails (31), slide grooves (32) and locking bolts (33), the slide rails (31) are fixed on the host (1), a plurality of the slide rails (31) are arranged in parallel along the length direction, the slide grooves (32) are arranged on the fixing tubes (2) and slidably connected with the slide rails (31), and the locking bolts (33) are threadedly connected with the fixing tubes (2) and used for abutting against the slide rails (31).

3. A drug micropump with automatic refill capability according to claim 1, characterized in that: The driving structures (7) comprise servo motors, screw rods (71), controllers, infrared limit switches (72), guide grooves (73) and connecting rods (74), the servo motors are fixed in the host (1), the screw rods (71) are rotatably connected with the host (1) and driven to rotate by the servo motors, the infrared limit switches (72) are fixed on the host (1) and used for corresponding to plungers of the syringes, the guide grooves (73) are arranged on the host (1), one end of the connecting rod (74) is threadedly connected with the screw rod (71), the other end passes through the guide groove (73) and is connected with the driving block (8), and the servo motors and the infrared limit switches (72) are electrically connected with the controller, the length direction of the screw rod (71), the length direction of the guide groove (73) and the axis of the fixing tube (2) are arranged in parallel.

4. A drug micropump with automatic refill capability according to claim 2, characterized in that: The fixing tube (2) is provided with an adjusting structure for limiting the syringes.

5. The refillable, automatic pumpable medicine micro pump of claim 4, wherein: The adjusting structure comprises adjusting rods (41) and adjusting rings (42), a plurality of the adjusting rods (41) are slidably connected in the fixing tube (2) and uniformly distributed along the axis of the fixing tube (2), the fixing tube (2) is rotatably connected with the coaxially arranged adjusting ring (42), and the adjusting ring (42) rotates and drives a plurality of the adjusting rods (41) to move along the radial direction of the fixing tube (2) through a transmission assembly (5).

6. The refillable, automatic pumpable medicine micro pump of claim 5, wherein: The transmission assembly (5) comprises screw sleeves (51), straight grooves (52), straight bars (53), first inclined surfaces (54), second inclined surfaces (55) and elastic members (56), the straight grooves (52) are arranged on the inner wall of the fixing tube (2), the straight bars (53) are fixed on the screw sleeves (51) and slidably connected in the straight grooves (52), the screw sleeves (51) are threadedly connected with the adjusting ring (42), the first inclined surfaces (54) are arranged on the end of the screw sleeve (51), the second inclined surfaces (55) are arranged on the end of the adjusting rod (41) and abut against the first inclined surfaces (54), and the two ends of the elastic member (56) are connected with the fixing tube (2) and the adjusting rod (41) respectively.

7. The refillable, automatic pumpable medicine micro pump of claim 6, wherein: The adjusting rod (41) is provided with a clamping arc surface (6) at the end away from the elastic member (56).

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