CN115581830A

CN115581830A - Medicament injection device

Info

Publication number: CN115581830A
Application number: CN202211309416.2A
Authority: CN
Inventors: 吴昊; 孙晶晶; 桂文娟; 吴婷; 吴征飞; 刘孝杰
Original assignee: Shenzhen Boon Medical Supplies Co ltd
Current assignee: Shenzhen Boon Medical Supplies Co ltd
Priority date: 2022-10-25
Filing date: 2022-10-25
Publication date: 2023-01-10
Anticipated expiration: 2042-10-25
Also published as: CN115581830B

Abstract

The invention discloses a medicine injection device, which relates to the technical field of medicine injection and comprises an injection needle cylinder, a piston shaft, a piston handle and an injection needle head, wherein a shell matched with the injection needle cylinder is arranged on the outer side of the injection needle cylinder, and a clamping groove is formed in the shell. According to the invention, the pushing racks drive the piston handle to stably inject liquid medicine, the injection stability is improved, uncomfortable feeling of a patient is avoided, in the liquid medicine injection process, the two groups of pushing racks drive the laminating moving frame to move through the connecting plate while moving, the laminating moving frame synchronously conveys the medical adhesive plaster, the driving mechanism drives the driving roller shaft to rotate through the synchronous belt and the one-way bearing, the driving roller shaft synchronously conveys the medical adhesive plaster, and under the action of the laminating moving frame, the medical adhesive plaster synchronously moves to the position above the injection part of the patient in the injection process, and the problem that the hemostasis is troublesome when the patient needs to manually press the cotton swab is effectively avoided.

Description

Medicament injection device

Technical Field

The invention relates to the technical field of medicine injection, in particular to a medicine injection device.

Background

The injection is generally called as injection in medical terms, i.e. the injection is carried out by injecting the medicine into the body with the aid of a medical apparatus such as a syringe, etc. to achieve the purposes of diagnosis, treatment, prevention of diseases, etc., and the injection can be divided into intramuscular injection, subcutaneous injection, intravenous injection and intradermal injection according to the depth of the medicine injection part.

Intramuscular injection is a method of injecting a liquid medicine between epidermis and dermis, and is mainly used for a pioneer step of skin allergy test, vaccination prevention and local anesthesia.

In the prior art, when liquid medicine is injected into a patient through an injection device manually, the medicine injection speed is unstable due to the fact that the medicine is pushed manually, the patient can easily feel uncomfortable, after injection is completed, the patient needs to press the needle eye to a certain extent through a cotton swab, bleeding at the needle eye is avoided, the patient needs to press hemostasis through the cotton swab to be troublesome, and the patient at some injection positions is difficult to press manually, and the operation is troublesome.

Disclosure of Invention

Based on this, the invention aims to provide a medicine injection device, so as to solve the technical problems that in the prior art, the medicine injection speed is unstable due to unstable medicine pushing manually, a patient easily feels uncomfortable, the patient needs to press a cotton swab to stop bleeding after injection is completed, and the patient is difficult to press manually at some injection parts, so that the operation is troublesome.

In order to achieve the purpose, the invention provides the following technical scheme: the medicine injection device comprises an injection needle cylinder, a piston shaft, a piston handle and an injection needle head, wherein a shell matched with the injection needle cylinder is arranged on the outer side of the injection needle cylinder, and a clamping groove is formed in the shell;

the medical adhesive tape pushing device comprises a shell, a pushing rack, a laminating moving frame, a connecting plate, a driving roll shaft, a pushing plate, a pushing shaft, a driving roll shaft and a pushing plate, wherein the pushing rack is connected inside the shell in a sliding manner, the first sliding hole matched with two groups of pushing racks is formed in the shell, the cross section of the first sliding hole is rectangular, the pushing plate matched with a piston handle is fixedly arranged at the tail ends of the two groups of pushing racks, the laminating moving frame is connected inside the shell in a sliding manner, the laminating moving frame and the pushing racks are fixedly connected through the connecting plate, the medical adhesive tape is rotatably connected inside the shell, the medical adhesive tape is rotatably connected with the shell through the movable shaft, the bottom end inside the shell is rotatably connected with the driving roll shaft, and the driving roll shaft is rotatably connected with the shell through the rotating shaft;

the driving mechanism matched with the pushing racks is arranged in the shell and comprises a rotating shaft, a gear, a worm wheel, a worm and a motor, the motor is fixedly arranged in the shell, the output end of the motor is fixedly provided with the worm, the rotating shaft is rotatably connected with the shell, the one-way bearing is connected with the rotating shaft through a synchronous belt, the gear is fixed at two ends of the outer side of the rotating shaft and meshed with the two groups of pushing racks, and the worm wheel is fixed at the middle position of the outer side of the rotating shaft and meshed with the worm;

two ends of the outer side of the rotating shaft are provided with one-way bearings, two groups of one-way bearings are in transmission connection with the driving mechanism through a synchronous belt, and the tail end of the medical adhesive tape penetrates through the outer side of the driving roller shaft and extends into the laminating moving frame;

and the inside end of shell is provided with cutting mechanism with medical adhesive tape matched with, and cutting mechanism includes fixed plate, electro-magnet, lifter plate, guide bar, solid fixed ring, tool bit and extrusion fixed block, the inside at the shell is fixed to fixed plate and electro-magnet, the electro-magnet bottom is provided with rather than matched with solid fixed ring, and is sliding connection between lifter plate and the shell, and the lifter plate bottom is fixed respectively and is provided with the tool bit and extrudees the fixed block, the fixed guide bar that runs through electro-magnet and fixed plate that is provided with in lifter plate top, the inside second sliding hole of moving frame matched with that offers and laminating of shell, the inside bottom mounting of second sliding hole is provided with the backup pad with tool bit matched with.

By adopting the above technical scheme, through the block groove looks block of syringe cylinder and shell that will absorb liquid medicine, it removes to drive two sets of gear engagement propelling movement racks through actuating mechanism when the motor, thereby two sets of propelling movement rack one end fixed push plate drive piston handle and carry out the stable injection to liquid medicine, improve the stability of injection, avoid the uncomfortable sensation of patient to take place, and in the liquid medicine injection process, two sets of propelling movement racks drive laminating removal frame through the connecting plate and remove when removing, laminating removal frame carries out synchronous transport to medical adhesive tape, and meanwhile, actuating mechanism drives the initiative roller through hold-in range and one-way bearing and rotates, and then the initiative roller is synchronous to carrying out the initiative to medical adhesive tape, under the effect of cooperation laminating removal frame, make medical adhesive tape in the injection process synchronous removal to the top of patient's injection position, then under the effect of electro-magnet, make the tool bit cut off medical adhesive tape in step, and then medical personnel only need to manually press medical adhesive tape, then pull out the injection syringe needle in step, thereby make medical adhesive tape laminate hemostasis to the injection needle eye, the effectual patient has avoided still to need manually to press comparatively trouble problem through the cotton.

The invention is further arranged that the bottoms of the two ends of the inner wall of the attaching and moving frame are fixedly provided with supporting bars, and the surfaces of the supporting bars are uniformly provided with a plurality of groups of grooves.

Through adopting above-mentioned technical scheme, wherein the support bar plays the limiting displacement when carrying medical adhesive tape, and the multiunit recess avoids medical adhesive tape adhesion on the surface of support bar.

The medical adhesive tape sticking device is further arranged in such a way that one side inside the shell is rotatably connected with a positioning roller shaft matched with the medical adhesive tape, a plurality of groups of limiting roller shafts positioned above the sticking moving frame are rotatably connected inside the shell, and the plurality of groups of limiting roller shafts play a role in limiting the top of the medical adhesive tape.

Through adopting above-mentioned technical scheme, wherein the location roller plays the positioning action to medical adhesive tape, and wherein spacing roller plays the limiting displacement to medical adhesive tape.

In summary, the invention mainly has the following beneficial effects: according to the invention, the injection needle cylinder for sucking liquid medicine is clamped with the clamping groove of the shell, when the motor drives the two groups of gear-meshed pushing racks to move through the driving mechanism, so that the pushing plates fixed at one ends of the two groups of pushing racks drive the piston handle to stably inject the liquid medicine, the injection stability is improved, and the patient is prevented from feeling uncomfortable.

Drawings

FIG. 1 is a schematic diagram of a first perspective of the present invention;

FIG. 2 is a schematic view of the internal structure of the present invention;

FIG. 3 is an enlarged view taken at A of FIG. 2 according to the present invention;

FIG. 4 is an enlarged view of FIG. 2 at B of the present invention;

FIG. 5 is a partial schematic view of the present invention;

FIG. 6 is a schematic view of the structure of the housing of the present invention;

FIG. 7 is a schematic diagram of a second perspective view of the present invention.

In the figure: 1. an injection syringe; 2. a piston shaft; 3. a piston shank; 4. a housing; 5. pushing the rack; 6. a push plate; 7. fitting the movable frame; 8. a supporting strip; 9. a drive roll shaft; 10. a rotating shaft; 11. a one-way bearing; 12. a rotating shaft; 13. a gear; 14. a synchronous belt; 15. a worm gear; 16. a worm; 17. a motor; 18. a medical adhesive plaster; 19. a movable shaft; 20. positioning a roll shaft; 21. a limiting roll shaft; 22. a connecting plate; 23. a battery; 24. a fixing plate; 25. an electromagnet; 26. a lifting plate; 27. a guide bar; 28. a fixing ring; 29. a cutter head; 30. extruding the fixed block; 31. an injection needle; 32. a support plate; 33. a clamping groove; 34. a first sliding hole; 35. a second sliding hole.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

The following describes an embodiment of the present invention based on its overall structure.

A medicine injection device, as shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6 and fig. 7, comprising an injection syringe 1, a piston shaft 2, a piston handle 3 and an injection needle 31, wherein a casing 4 matched with the injection syringe 1 is arranged outside the injection syringe 1, and a clamping groove 33 is formed inside the casing 4;

the pushing rack 5 is connected inside the shell 4 in a sliding manner, first sliding holes 34 matched with the two groups of pushing racks 5 are formed inside the shell 4, the cross section of each first sliding hole 34 is rectangular, pushing plates 6 matched with the piston handles 3 are fixedly arranged at the tail ends of the two groups of pushing racks 5, a laminating moving frame 7 is connected inside the shell 4 in a sliding manner, the laminating moving frame 7 and the pushing racks 5 are fixedly connected through a connecting plate 22, a medical adhesive tape 18 is rotatably connected inside the shell 4, the medical adhesive tape 18 and the shell 4 are rotatably connected through a movable shaft 19, a driving roll shaft 9 is rotatably connected at the bottom end inside the shell 4, the driving roll shaft 9 and the shell 4 are rotatably connected through a rotating shaft 10, and in the process of injecting the liquid medicine, the two groups of pushing racks 5 move while driving the laminating moving frame 7 to move through the connecting plate, the laminating moving frame 7 carries out synchronous conveying on the medical adhesive plaster 18, meanwhile, the driving mechanism drives the driving roller shaft 9 to rotate through the synchronous belt 14 and the one-way bearing 11, the driving roller shaft 9 carries out active conveying on the medical adhesive plaster 18 synchronously, the medical adhesive plaster 18 is enabled to move to the position above an injection part of a patient synchronously in the injection process under the action of the laminating moving frame 7, then the cutter head 29 is enabled to cut off the medical adhesive plaster 18 synchronously under the action of the electromagnet 25, medical staff only need to manually press the medical adhesive plaster 18, then the injection needle head 31 is pulled out synchronously, accordingly, the medical adhesive plaster 18 carries out laminating hemostasis on an injection needle hole, and the problem that the hemostasis is troublesome when the patient needs to manually press the hemostasis through a cotton swab is effectively avoided;

a driving mechanism matched with the pushing racks 5 is arranged in the shell 4, the driving mechanism comprises a rotating shaft 12, a gear 13, a worm wheel 15, a worm 16 and a motor 17, the motor 17 is fixedly arranged in the shell 4, the worm 16 is fixed at the output end of the motor 17, the rotating shaft 12 is rotatably connected with the shell 4, the one-way bearing 11 is connected with the rotating shaft 12 through a synchronous belt 14, the gear 13 is fixed at two ends of the outer side of the rotating shaft 12 and is meshed with the two groups of pushing racks 5, the worm wheel 15 is fixed at the middle position of the outer side of the rotating shaft 12 and is meshed with the worm 16, wherein the driving mechanism plays a role in pushing liquid medicine, so that the liquid medicine pushing process is more stable;

two ends of the outer side of the rotating shaft 10 are provided with one-way bearings 11, the two groups of one-way bearings 11 are in transmission connection with the driving mechanism through a synchronous belt 14, and the tail end of the medical adhesive tape 18 penetrates through the outer side of the driving roll shaft 9 and extends into the laminating moving frame 7;

and the inside end of shell 4 is provided with the cutting mechanism with medical adhesive tape 18 matched with, cutting mechanism includes fixed plate 24, electro-magnet 25, lifter plate 26, guide bar 27, solid fixed ring 28, tool bit 29 and extrusion fixed block 30, fixed plate 24 and electro-magnet 25 are fixed in the inside of shell 4, electro-magnet 25 bottom is provided with rather than matched with solid fixed ring 28, and be sliding connection between lifter plate 26 and the shell 4, lifter plate 26 bottom is fixed with tool bit 29 and extrusion fixed block 30 respectively, lifter plate 26 top is fixed and is provided with the guide bar 27 that runs through electro-magnet 25 and fixed plate 24, shell 4 is inside to be seted up and to laminate removal frame 7 matched with second sliding hole 35, the inside bottom mounting in second sliding hole 35 is provided with and tool bit 29 matched with backup pad 32, wherein cutting mechanism plays the cutting off effect to medical adhesive tape 18.

Referring to fig. 3 and 4, the supporting strips 8 are fixedly arranged at the bottoms of the two ends of the inner wall of the attaching and moving frame 7, and the surfaces of the supporting strips 8 are uniformly provided with a plurality of groups of grooves, by adopting the structure, the supporting strips 8 play a role of limiting the medical adhesive tapes 18 during conveying, and the plurality of groups of grooves prevent the medical adhesive tapes 18 from being adhered to the surfaces of the supporting strips 8.

Referring to fig. 2 and 3, one side inside the housing 4 is rotatably connected with a positioning roller shaft 20 matched with the medical adhesive plaster 18, the inside of the housing 4 is rotatably connected with a plurality of groups of limiting roller shafts 21 positioned above the attaching moving frame 7, and the plurality of groups of limiting roller shafts 21 play a role in limiting the top of the medical adhesive plaster 18.

The working principle of the invention is as follows: when the injection needle is used, firstly, medical staff uses the injection needle cylinder 1 to suck liquid medicine, then the injection needle cylinder 1 sucking the liquid medicine is clamped with the clamping groove 33 of the shell 4, at the moment, the medical staff inserts the injection needle 31 into the vein of a patient in an inclined mode, and at the moment, the motor 17 is started;

when the motor 17 drives the two groups of gears 13 to be meshed with the pushing racks 5 to move through the driving mechanism, the pushing plates 6 fixed at one ends of the two groups of pushing racks 5 drive the piston handle 3 to stably inject liquid medicine, so that the injection stability is improved, and the uncomfortable feeling of a patient is avoided;

further, the driving mechanism drives the worm 16 to rotate through the motor 17, so that the worm 16 is meshed with the worm wheel 15 to rotate, the worm wheel 15 drives the rotating shaft 12 to rotate, and the rotating shaft 12 drives the two groups of gears 13 to rotate, so that the two groups of pushing racks 5 can be driven to stably move;

in the process of injecting the liquid medicine, the two groups of pushing racks 5 move and simultaneously drive the laminating moving frame 7 to move through the connecting plate, the laminating moving frame 7 synchronously conveys the medical adhesive plaster 18, meanwhile, the driving mechanism drives the driving roller shaft 9 to rotate through the synchronous belt 14 and the one-way bearing 11, further, the driving roller shaft 9 synchronously and actively conveys the medical adhesive plaster 18, under the action of the laminating moving frame 7, the medical adhesive plaster 18 synchronously moves to the position above the injection part of a patient in the injection process, then, under the action of the electromagnet 25, the cutter head 29 synchronously cuts off the medical adhesive plaster 18, further, medical staff only need to manually press the medical adhesive plaster 18, and then synchronously extracts the injection needle head 31, so that the medical adhesive plaster 18 can be laminated to stop bleeding of an injection needle eye, and the problem that the hemostasis of the patient is troublesome due to manual pressing of the medical adhesive plaster through a cotton swab is effectively avoided;

when the injection needle 31 is pulled out, the motor 17 rotates reversely at the moment, so that the pushing rack 5 and the attaching movable frame 7 move reversely and reset relative to the shell 4, and the electromagnet 25 drives the cutter head 29 to cut the previous group of medical adhesive tapes 18, the fixed block 30 is synchronously extruded to fix the tail ends of the medical adhesive tapes 18, so that when the attaching movable frame 7 resets, the medical adhesive tapes 18 cannot reset, and only the attaching movable frame 7 moves relative to the medical adhesive tapes 18;

further, the motor 17 rotates reversely, the one-way bearing 11 is in an idle state at the time, and further, when the motor 17 rotates reversely, the driving roller shaft 9 does not drive the medical adhesive tape 18 to move reversely, so that the driving roller shaft 9 plays a role in limiting the medical adhesive tape 18 at the time, and the medical adhesive tape 18 is prevented from being displaced along with the resetting of the attaching moving frame 7.

Although embodiments of this invention have been shown and described, it is to be understood that such embodiments are merely illustrative of and not restrictive on the broad invention, and that any one or more of the described features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples, and that modifications, substitutions, and variations that do not materially contribute to the novel teachings of this invention may be made by those skilled in the art after reading this disclosure without departing from the principles and spirit of this invention, but within the scope of the appended claims.

Claims

1. Medicine injection device, including syringe (1), piston shaft (2), piston handle (3) and syringe needle (31), its characterized in that: a shell (4) matched with the injection needle cylinder (1) is arranged on the outer side of the injection needle cylinder, and a clamping groove (33) is formed in the shell (4);

the push rack (5) is connected to the inside of the shell (4) in a sliding mode, a driving mechanism matched with the push rack (5) is arranged inside the shell (4), two groups of push plates (6) matched with the piston handle (3) are fixedly arranged at the tail ends of the push racks (5), a laminating moving frame (7) is connected to the inside of the shell (4) in a sliding mode, the laminating moving frame (7) is fixedly connected with the push racks (5) through a connecting plate (22), a medical adhesive tape (18) is connected to the inside of the shell (4) in a rotating mode, the medical adhesive tape (18) is connected to the shell (4) in a rotating mode through a movable shaft (19), a driving roller shaft (9) is connected to the bottom end of the inside of the shell (4) in a rotating mode, and the driving roller shaft (9) is connected to the shell (4) in a rotating mode through a rotating shaft (10);

rotation axis (10) outside both ends all are provided with one-way bearing (11), and are two sets of connect through hold-in range (14) transmission between one-way bearing (11) and the actuating mechanism, medical adhesive tape (18) end passes the drive roll axle (9) outside and extends to the inside that the frame (7) was removed in the laminating, and shell (4) inside end be provided with medical adhesive tape (18) matched with cutting mechanism.

2. The drug injection apparatus of claim 1, wherein: actuating mechanism includes pivot (12), gear (13), worm wheel (15), worm (16) and motor (17), motor (17) fixed mounting is in the inside of shell (4), and motor (17) output is fixed with worm (16), for rotating the connection between pivot (12) and shell (4), and connect through hold-in range (14) between one-way bearing (11) and pivot (12).

3. The drug injection apparatus of claim 2, wherein: the gear (13) is fixed at two ends of the outer side of the rotating shaft (12) and meshed with the two groups of pushing racks (5), and the worm wheel (15) is fixed at the middle position of the outer side of the rotating shaft (12) and meshed with the worm (16).

4. The drug injection apparatus of claim 1, wherein: the bottom at both ends of the inner wall of the laminating moving frame (7) is fixedly provided with support bars (8), and a plurality of groups of grooves are uniformly formed in the surfaces of the support bars (8).

5. The drug injection apparatus of claim 1, wherein: the utility model discloses a medical adhesive tape, including shell (4), inside one side of shell (4) is rotated and is connected with location roller (20) with medical adhesive tape (18) matched with, shell (4) inside is rotated and is connected with spacing roller (21) that the multiunit is located laminating removal frame (7) top, and spacing roller (21) of multiunit play the limiting displacement to medical adhesive tape (18) top.

6. The drug injection apparatus of claim 1, wherein: cutting mechanism includes fixed plate (24), electro-magnet (25), lifter plate (26), guide bar (27), solid fixed ring (28), tool bit (29) and extrusion fixed block (30), the inside at shell (4) is fixed in fixed plate (24) and electro-magnet (25), electro-magnet (25) bottom is provided with rather than matched with solid fixed ring (28), and is sliding connection between lifter plate (26) and shell (4).

7. The drug injection apparatus of claim 6, wherein: the bottom of the lifting plate (26) is respectively and fixedly provided with a cutter head (29) and an extrusion fixing block (30), and the top of the lifting plate (26) is fixedly provided with a guide rod (27) penetrating through the electromagnet (25) and the fixing plate (24).

8. The drug injection apparatus of claim 7, wherein: the inner part of the shell (4) is provided with a second sliding hole (35) matched with the laminating moving frame (7), and the bottom end of the inner part of the second sliding hole (35) is fixedly provided with a supporting plate (32) matched with the tool bit (29).

9. The drug injection apparatus of claim 1, wherein: a first sliding hole (34) matched with the two groups of pushing racks (5) is formed in the shell (4), and the section of the first sliding hole (34) is rectangular.