CN215780604U - Uniform-speed injection device for injector - Google Patents
Uniform-speed injection device for injector Download PDFInfo
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- CN215780604U CN215780604U CN202120355872.5U CN202120355872U CN215780604U CN 215780604 U CN215780604 U CN 215780604U CN 202120355872 U CN202120355872 U CN 202120355872U CN 215780604 U CN215780604 U CN 215780604U
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- injector
- supporting plate
- constant
- injection device
- rack
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Abstract
The utility model discloses a constant-speed propelling device for an injector, which comprises a supporting plate, wherein the upper surface of the supporting plate is provided with a driving motor, a gear and a rack, the gear is connected with an output shaft of the motor and is meshed with the rack, the rack is connected with a driving rod, the driving rod is used for pushing a push rod of the injector, and the rack is arranged on the upper surface of the supporting plate in a sliding manner; the lower surface of the supporting plate is fixedly connected with a clamping piece, and the clamping piece is used for being connected with an injector; after the constant-speed propelling device is matched with an injector for use, the constant-speed injection of liquid medicine can be realized, and the discomfort of a patient during medicine injection is reduced.
Description
Technical Field
The utility model relates to a medical instrument, in particular to a constant-speed injection device for an injector.
Background
Medical syringes of different types are manually injected at present, and the injection time and the injection force are uneven due to different liquid medicine densities and different operating methods of workers in the injection process, so that the pain of patients is increased.
SUMMERY OF THE UTILITY MODEL
The utility model aims to: aiming at the problem that the injector in the prior art can not inject at a constant speed, the constant-speed propelling device is provided, and can be matched with the injector to realize the constant-speed injection.
In order to achieve the purpose, the utility model adopts the technical scheme that:
a constant-speed injection device for an injector comprises a supporting plate, wherein a driving motor, a gear and a rack are arranged on the upper surface of the supporting plate, the gear is connected to an output shaft of the motor and meshed with the rack, a driving rod is connected to the rack and used for pushing an injector push rod, and the rack is arranged on the upper surface of the supporting plate in a sliding manner; the lower surface of the supporting plate is fixedly connected with a clamping piece, and the clamping piece is used for being connected with an injector.
According to the technical scheme, the clamping piece is used for connecting the constant-speed injection device with the injector to fix the injection device, the driving motor moves through the gear rack mechanism to realize the movement of the driving rod, the driving mechanism pushes the injector push rod through the driving rod, and the motor rotates at a constant speed, so that the constant-speed injection of liquid medicine can be realized. When the driving rod pushes the injector push rod to realize uniform injection, the uniform injection device can be subjected to the reaction force from the injector push rod, so that the uniform injection device has the motion trend towards the opposite direction of the motion of the injector push rod, and the clamping piece is fixedly connected with the supporting plate and connected with the injector convex edge during use, so that the phenomenon that the uniform injection device is displaced during operation to influence the injection process can be avoided.
Preferably, the driving rod is J-shaped, and a disc-shaped working end is arranged on the driving rod and used for pushing the syringe push rod.
The disc-shaped working end pushes the syringe push rod, the contact area is larger, the syringe push rod can be stressed more uniformly, and the situation that the syringe push rod inclines in the injection process due to the fact that the stress point deviates from the axis of the syringe push rod is avoided, so that the liquid medicine leaks from the piston.
A constant-speed injection device for an injector comprises a supporting plate, wherein a driving motor, a gear and a rack are arranged on the upper surface of the supporting plate, the gear is connected to an output shaft of the motor, and the gear is meshed with the rack; the rack is connected with a driving rod, the driving rod is provided with a working end used for pushing a syringe push rod, and the rack is arranged on the upper surface of the supporting plate in a sliding manner; the lower surface of the supporting plate is connected with a clamping piece in a sliding manner, and the clamping piece is used for being connected with the injector convex edge; the lower surface of the supporting plate is fixedly connected with a baffle plate, the baffle plate is used for limiting the displacement of the supporting plate relative to the injector when liquid medicine is injected, and the clamping piece is located between the baffle plate and the working end.
The uniform-speed injection device provided by the technical scheme can adjust the distance between the clamping piece and the baffle according to the length of the injector, so that the clamping piece is matched with the length of the injector, and is suitable for injectors with different lengths. In the technical scheme, the driving motor drives the driving rod, and the working end of the driving rod pushes the injector to realize uniform injection; the joint spare and the spacing back of mutually supporting of syringe chimb, the baffle can with syringe urceolus preceding terminal surface contact, the baffle of above-mentioned scheme can be when the injection, rely on the preceding terminal surface of syringe urceolus to provide the power the same with the injection direction for the backup pad, avoid the backup pad to take place to remove along the injection direction at the injection in-process.
As a preferable aspect of the present invention, the number of the snap pieces is two.
As a preferable scheme of the utility model, the lower surface of the supporting plate is provided with a T-shaped groove, and the clamping piece slides in the T-shaped groove.
In a preferred embodiment of the present invention, the driving rod has a "J" shape, and the working end has a disk shape.
The disc-shaped working end pushes the syringe push rod, the contact area is larger, the syringe push rod can be stressed more uniformly, and the situation that the syringe push rod inclines in the injection process due to the fact that the stress point deviates from the axis of the syringe push rod is avoided, so that the liquid medicine leaks from the piston.
As a preferred scheme of the utility model, the support plate is also provided with a controller, the controller is provided with a speed regulating button for regulating the rotating speed of the driving motor and a switch for controlling the start/stop of the speed regulating motor, and the controller is electrically connected with the driving motor.
Through the controller, the medical staff can adjust the injection speed according to the medicaments with different components.
In a preferred embodiment of the present invention, the power supply of the controller and the power supply of the driving motor are button batteries.
As a preferable scheme of the utility model, after the clamping piece is connected with the injector, the baffle plate can be attached to the front end face of the outer cylinder of the injector.
The baffle is attached to the front end face of the outer barrel of the injector, so that the baffle is stressed more uniformly.
As a preferable scheme of the utility model, the baffle is Y-shaped, and after the clamping piece is connected with the injector, the lower end of the baffle is positioned at two sides of the medicine outlet nozzle of the injector.
The lower extreme of baffle is located the both sides of syringe medicine mouth, can prevent that the backup pad from rocking about following the injection direction when the injection.
In summary, due to the adoption of the technical scheme, the utility model has the beneficial effects that:
the constant-speed injection device for the injector provided by the utility model not only can realize the constant-speed injection of the medicine, but also can be suitable for injectors with different lengths and models; the constant-speed injection device for the injector is connected with the injector in a clamping manner, and is very convenient to disassemble.
The constant-speed injection device for the injector is used in combination with the injector, so that constant-speed injection can be realized, the pain of a patient is reduced, the rotating speed of the driving motor can be adjusted through the controller to adapt to different liquid medicines, the injection process can be completed more stably and efficiently by driving the motor, excessive actions of hands of medical staff are not needed, and the occupational injury of the staff is reduced.
Drawings
FIG. 1 is a schematic structural view of embodiment 1 of the present invention;
FIG. 2 is a schematic view of a constant velocity injection apparatus according to example 1 of the present invention in use;
FIG. 3 is an isometric view of embodiment 2 of the utility model;
FIG. 4 is a schematic bottom structure view of example 2 of the present invention;
fig. 5 is a schematic view of the constant velocity injection apparatus of this embodiment 2 in use.
Icon: 1-driving a motor; 2-a gear; 3-a rack; 31-a drive rod; 32-a working end; 4-a support plate; 41-T type groove; 5-a clamping piece; 61-syringe outer barrel; 62-injector flange; 63-injector pushrods; 64-injector medicine outlet; 65-injector push sheet; 7-a baffle plate; 8-a controller.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
Example 1
As shown in fig. 1, the constant speed injection device for the injector comprises a support plate 4, wherein a driving motor 1 is fixed on the upper surface of the support plate 4, the driving motor 1 can adopt a miniature direct current gear motor with the model number of GA1024-N20, and an output shaft of the driving motor 1 is connected with a gear 2; the upper surface of the supporting plate 4 is connected with a rack 3 in a sliding way through a sliding chute, and the rack 3 is meshed with the gear 2; the right end of the rack 3 is fixedly connected with a J-shaped driving rod 31, one end, away from the rack 3, of the driving rod 31 is a working end 32, the working end 32 is disc-shaped, the working end of the driving rod 31 is used for pushing an injector push rod 63, and the lower surface of the supporting plate 4 is fixedly connected with two U-shaped clamping pieces 5; the upper surface of the supporting plate 4 is also provided with a controller 8, the controller 8 is electrically connected with the driving motor 1, the controller 8 is provided with a speed regulating button for controlling the rotating speed of the driving motor 1 and a switch for controlling the start/stop of the driving motor 1, and the driving motor 1 and the controller 8 are both powered by button batteries.
The schematic diagram of the combination of the constant-speed injection device and the injector in use is shown in fig. 2, two clamping members 5 are respectively clamped on the injector flange 62, the injector push piece 65 is located on the motion track of the working end 32 of the driving rod 31, and the working end 31 can push the injector push piece 65. When the injection device works, the driving motor 1 provides power to drive the rack 2 to move leftwards, the rack 2 drives the driving rod 31 to move leftwards, the working end 32 is attached to the injector push sheet 65, and the driving rod 31 pushes the injector push rod 63 to complete the injection process. When injection is carried out, the uniform-speed injection device is clamped with the injector convex edge 62 through the clamping piece 5, so that the uniform-speed injection device cannot move.
Example 2
A constant-speed injection device for an injector is shown in figures 3 and 4 and comprises a support plate 4, wherein a driving motor 1 is fixedly connected to the upper surface of the support plate 4, the driving motor 1 can adopt a miniature direct-current speed reducing motor with the model of GA1024-N20, a gear 2 is connected to an output shaft of the driving motor 1, a rack 3 is slidably connected to the upper surface of the support plate 4, the rack 3 is meshed with the gear 2, a J-shaped driving rod 31 is fixedly connected to the right end of the rack 3, and one end, away from the rack 3, of the driving rod 31 is a disc-shaped working end 32; the upper surface of the supporting plate 4 is also provided with a controller 8, the controller 8 is electrically connected with the driving motor 1, the controller 8 is provided with a speed regulating button for controlling the rotating speed of the driving motor 1 and a switch for controlling the start/stop of the driving motor 1, and the driving motor 1 and the controller 8 are both powered by button batteries; the left end of the lower surface of the supporting plate 4 is provided with a baffle 7 which is Y-shaped; as shown in fig. 3, two parallel T-shaped grooves 41 are formed in the lower surface of the supporting plate 4, and U-shaped fasteners 5 are slidably connected to the T-shaped grooves 41.
The schematic diagram of the combined constant-speed injection device and the injector provided in this embodiment is shown in fig. 5, and the constant-speed injection device is clamped with the injector flange 62 by the clamping member 5 to realize the combination with the injector. The combined rear baffle 7 is attached to the front end face of the injector outer cylinder 61; the syringe push rod 63 is located on the motion track of the driving rod 31, and the working end 31 can push the syringe push sheet 65. When the injection device works, the driving motor 1 provides power to drive the rack 2 to move leftwards, the rack 2 drives the driving rod 31 to move leftwards, the working end 32 is attached to the injector push sheet 65, and the driving rod 31 pushes the injector push rod 63 to complete the injection process. When injection is carried out, the baffle 7 is attached to the front end face of the outer cylinder 61 of the injector, so that the uniform-speed injection device cannot move along the injection direction, and the lower ends of the baffle 7 are positioned at two sides of the medicine outlet 64 of the injector, so that the uniform-speed injection device can be prevented from shaking left and right along the injection direction.
When the constant-speed injection device is used for injectors with different lengths, the clamping piece 5 only needs to be slid, and the distance between the clamping piece 5 and the blocking piece 7 is consistent with the length of the outer cylinder 61 of the injector.
The controller 8 is also connected with a display screen for displaying the current injection speed; at present, the control of the rotating speed of a motor is a mature technology, for example, an 89C51 single chip microcomputer can be adopted in a controller 8 to control output data; a PWM (pulse width modulation) signal generating circuit is adopted to generate a PWM signal which is sent to a driving motor 2; the data of the driving motor 2 is sent back to the 89C51 singlechip again through the speed measuring circuit, the filter circuit and the A/D conversion circuit for operation, thereby realizing the control of the rotating speed of the motor. The control circuit can enable the operator to adjust and adjust the injection speed according to different types of medicaments.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The constant-speed injection device for the injector comprises a supporting plate (4), wherein a driving motor (1), a gear (2) and a rack (3) are arranged on the upper surface of the supporting plate (4), the gear (2) is connected to an output shaft of the motor, and the gear (2) is meshed with the rack (3), and is characterized in that a driving rod (31) is connected to the rack (3), the driving rod (31) is used for pushing a push rod of the injector, and the rack (3) is slidably arranged on the upper surface of the supporting plate (4); the lower surface of the supporting plate (4) is fixedly connected with a clamping piece (5), and the clamping piece (5) is used for being connected with an injector.
2. The constant-speed injection device for the injector according to claim 1, wherein the driving rod (31) is J-shaped, a disc-shaped working end (32) is arranged on the driving rod (31), and the working end (32) is used for pushing a push rod of the injector.
3. A constant-speed injection device for an injector comprises a supporting plate (4), wherein a driving motor (1), a gear (2) and a rack (3) are arranged on the upper surface of the supporting plate (4), the gear (2) is connected to an output shaft of the motor, and the gear (2) is meshed with the rack (3);
the injector is characterized in that a driving rod (31) is connected to the rack (3), the driving rod (31) is provided with a working end (32) for pushing a push rod of the injector, and the rack (3) is arranged on the upper surface of the supporting plate (4) in a sliding manner; the lower surface of the supporting plate (4) is connected with a clamping piece (5) in a sliding manner, and the clamping piece (5) is used for being connected with an injector convex edge (62);
the lower surface of the supporting plate (4) is fixedly connected with a baffle (7), the baffle (7) is used for limiting the displacement of the supporting plate (4) relative to the injector when the liquid medicine is injected, and the clamping piece (5) is positioned between the baffle (7) and the working end (32).
4. The constant-speed injection device for the injector is characterized in that the number of the clamping pieces (5) is two.
5. The constant-speed injection device for the injector according to claim 3, wherein the lower surface of the support plate (4) is provided with a T-shaped groove (41), and the clamping piece (5) slides in the T-shaped groove (41).
6. The constant velocity injection device for the injector according to claim 3, wherein the driving rod (31) is J-shaped, and the working end (32) is disc-shaped.
7. The constant-speed injection device for the injector according to claim 1 or 3, wherein a controller (8) is further arranged on the support plate (4), a speed regulating button for regulating the rotating speed of the driving motor (1) and a switch for controlling the start/stop of the speed regulating motor are arranged on the controller (8), and the controller (8) is electrically connected with the driving motor (1).
8. The constant-speed injection device for the injector is characterized in that the power supply of the controller (8) and the power supply of the driving motor (1) are button batteries.
9. The constant-speed injection device for the injector according to claim 3, wherein the baffle (7) can be attached to the front end face of the outer cylinder of the injector after the clamping piece (5) is connected with the injector.
10. The constant-speed injection device for the injector according to claim 3, wherein the baffle (7) is Y-shaped, and after the clamping piece (5) is connected with the injector, the lower end of the baffle (7) is positioned at two sides of the medicine outlet (64) of the injector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120355872.5U CN215780604U (en) | 2021-02-06 | 2021-02-06 | Uniform-speed injection device for injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120355872.5U CN215780604U (en) | 2021-02-06 | 2021-02-06 | Uniform-speed injection device for injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215780604U true CN215780604U (en) | 2022-02-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120355872.5U Active CN215780604U (en) | 2021-02-06 | 2021-02-06 | Uniform-speed injection device for injector |
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| Country | Link |
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| CN (1) | CN215780604U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114848964A (en) * | 2022-04-26 | 2022-08-05 | 苏州恒瑞迪生医疗科技有限公司 | Injection pump |
| CN114848964B (en) * | 2022-04-26 | 2024-05-31 | 苏州恒瑞迪生医疗科技有限公司 | Injection pump |
-
2021
- 2021-02-06 CN CN202120355872.5U patent/CN215780604U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114848964A (en) * | 2022-04-26 | 2022-08-05 | 苏州恒瑞迪生医疗科技有限公司 | Injection pump |
| CN114848964B (en) * | 2022-04-26 | 2024-05-31 | 苏州恒瑞迪生医疗科技有限公司 | Injection pump |
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