CN212756736U - Ultra-micro injection device - Google Patents
Ultra-micro injection device Download PDFInfo
- Publication number
- CN212756736U CN212756736U CN202020705635.2U CN202020705635U CN212756736U CN 212756736 U CN212756736 U CN 212756736U CN 202020705635 U CN202020705635 U CN 202020705635U CN 212756736 U CN212756736 U CN 212756736U
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- ultra
- injection device
- pushing
- micro
- push rod
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Abstract
An ultra-micro injection device comprising: the device comprises a placing groove for placing a syringe, a push rod cavity for pushing a piston rod of the syringe and an adjusting hand belt for fixing the ultra-micro injection device body; the injector is characterized in that the placing groove is arranged at the output end of the push rod cavity, and the push rod cavity is internally provided with a deceleration propulsion structure for slowly propelling the piston rod of the injector; a controller for a user to select static pushing time is arranged on the outer surface of the push rod cavity, and the controller is electrically connected with the speed reduction propelling structure; the lower end of the placing groove is provided with an adjusting hand belt; the inner surface of the push rod cavity is provided with a battery assembly which is respectively and electrically connected with the controller and the deceleration propulsion structure; the structure can ensure that the ultra-micro device body can provide slow and accurate injection rate when in use.
Description
Technical Field
The utility model belongs to the field of medical equipment, concretely relates to is an ultramicro injection device.
Background
At present, the tranquilization intravenous injection is sometimes used in clinical treatment, 1 ml intravenous injection is required for 3 minutes, 5 minutes or even 10 minutes, medical staff can inject according to own experience, but the injection speed is unstable, and if the existing micro-injection pump is used for injection, the dead weight of the existing micro-injection pump is too large, so that the handheld operation of the medical staff is inconvenient. The portable microinjector used in the prior art regulates and controls the operation of a motor through a microinjection regulation and control system, and the motor pushes a lead screw to perform injection action, but the rotating speed of the motor is too high, so that the requirement of more precision cannot be met.
The utility model discloses inject inaccurately to artifical vein, and current syringe pump dead weight is too big inconvenient handheld to and the problem of the lack accuracy of current portable micro syringe, the utility model provides an ultramicro injection device.
SUMMERY OF THE UTILITY MODEL
In order to overcome the inaccuracy of injecting in the current manual vein, and the current syringe pump dead weight is too big inconvenient handheld to and the current portable microinjector lacks the problem of accuracy, the utility model provides an ultramicro injection device.
An ultra-micro injection device comprising: the device comprises a placing groove for placing a syringe, a push rod cavity for pushing a piston rod of the syringe and an adjusting structure for fixing the ultra-micro injection device body; the injector is characterized in that the placing groove is arranged at the output end of the push rod cavity, and the push rod cavity is internally provided with a deceleration propulsion structure for slowly propelling the piston rod of the injector; a controller for a user to select static pushing time is arranged on the outer surface of the push rod cavity, and the controller is electrically connected with the speed reduction propelling structure; the lower end of the placing groove is provided with an adjusting structure; the inner surface of the push rod cavity is provided with a battery assembly which is respectively and electrically connected with the controller and the deceleration propulsion structure; the structure can ensure that the ultra-micro device body can provide slow and accurate injection rate when in use.
Further, the deceleration propulsion structure includes: the rotating motor is arranged in the pushing cavity, the lead screw is used for pushing the piston rod of the syringe, and the planetary reduction mechanism is used for reducing the rotating speed of the motor; the output end face of the motor shaft of the rotating motor is provided with a through hole for placing a lead screw in a penetrating mode, the surface of the motor shaft of the rotating motor is provided with a lead screw bearing for the lead screw to move freely and linearly along the axial lead of the motor shaft, the outer surface of the motor shaft of the rotating motor is fixedly provided with a planetary speed reducing mechanism, the end of the output end face of the motor shaft of the rotating motor is sleeved with an output shaft of the planetary speed reducing mechanism meshed with the lead screw, and the inner surface of the output shaft of the planetary speed reducing mechanism. When the device is used, the planetary reduction mechanism performs reduction transmission to reduce the output rotating speed of the rotating motor, the output rotating speed of the planetary reduction mechanism is transmitted by the meshing of the output shaft of the planetary reduction mechanism and the screw rod, the arrangement can ensure that the output rotating speed of the rotating motor is reduced to a set rotating speed to drive the screw rod to perform linear motion, and then the screw rod pushes the piston rod of the injector to perform slow injection.
Further, a battery assembly is arranged to be electrically connected with the rotating motor in the speed reducing and propelling structure.
Further, the planetary speed reducing mechanism adopts a simple planetary mechanism which comprises a gear ring, a planetary wheel, a sun wheel and a triangular plate; the inner surface of the pushing cavity is fixedly provided with a gear ring, the outer surface of a motor shaft of the rotating motor is fixedly provided with a sun wheel, a planet wheel which is meshed with the gear ring and the sun wheel is correspondingly arranged between the gear ring and the sun wheel, the end surface of the planet wheel is provided with a triangular plate, and the middle point of the triangular plate is provided with an output shaft of a planet speed reducing mechanism. When the micro-injection device is used, the rotating speed of the sun wheel, which is the same as the rotating speed output by the motor shaft, is transmitted to the triangular plate through the planet wheel in a speed reducing way, and then is transmitted to the screw rod through the meshing of the output shaft of the planet speed reducing mechanism at the midpoint of the triangular plate, so that micro-injection is realized.
Further, the axle center diameter of the output shaft of the planetary reduction mechanism is larger than that of the motor shaft of the rotating motor; the arrangement can ensure that the output shaft of the planetary reduction mechanism is sleeved on the motor shaft of the rotating motor.
Furthermore, one end of the screw rod penetrating through the end surface of the output end of the rotating motor is set as the output end, and the horizontal distance between the end surface of the rodent arranged in the output shaft of the planetary reduction mechanism and the output end of the screw rod is smaller than the horizontal distance between the output end surface of the rotating motor and the output end of the screw rod; the arrangement can ensure that the lead screw does not generate motion interference when performing free linear motion in the motor shaft of the rotating motor.
Furthermore, the planet wheels all adopt gears with the same specification and size; the arrangement can ensure the stability of the planetary reduction mechanism in use.
Furthermore, the number of the planet wheels is not less than 3; the above arrangement can maintain the stability of the triangle when rotating.
Further, a pushing plate for pushing the piston rod of the injection tube is arranged at the output end of the screw rod.
Further, in order to facilitate the pushing plate to slowly push on the placing groove, the size of the pushing plate is matched with the placing groove.
Further, an injection tube pipe frame used for clamping an injection tube is arranged in the placing groove; the above arrangement can ensure the stability of the syringe when microinjection is performed.
Furthermore, the upper end of the injection tube pipe support is provided with a spring gasket, so that the injection tube is conveniently clamped when the injection tube is used.
Further, a through hole for the nozzle of the injector to penetrate through the injection end face is formed in the injection end face of the placing groove; when in use, the injector is convenient to be connected with the transfusion tube.
Further, set up the cushion with the adaptation of standing groove bottom cambered surface in the bottom of standing groove, run through the through-hole that sets up the confession regulation area and run through in the side surface of cushion.
Furthermore, a through hole is formed in the first end of the adjusting belt, and a buckle matched with the through hole is arranged at the second end of the adjusting belt; when in use, the arm circumference size of different patients can be adapted.
Or, a through hole for the connecting rod to penetrate is formed in the side surface of the cushion block, and the two ends of the connecting rod are hinged with the four-way adjusting support.
Further, a groove for placing a controller is arranged on the outer surface of the pushing cavity; the above arrangement can reduce the volume of the ultra-slim apparatus.
Furthermore, the control button is arranged on the outer surface of the controller, and the arrangement can ensure that the doctor selects the static pushing time.
Compare with prior art's microinjector when portable, the technical scheme of the utility model slow down motor speed through setting up the planet speed reduction subassembly, provide more accurate quiet speed of pushing away, can guarantee through setting up the standing groove that the in-process syringe of pushing away does not take place the skew upset at the quiet, through setting up the arm that the regulation band satisfies different patients and enclose the size, make things convenient for the doctor to choose for use different quiet time of pushing away through setting up the controller.
Drawings
FIG. 1 is a schematic view of the entire structure of an ultra-micro injection device according to the present invention;
FIG. 2 is a schematic longitudinal sectional view of a shaft-push rod cavity of an ultra-small injection device according to the present invention;
FIG. 3 is an enlarged view of a longitudinal cross-sectional partial structure of a shaft-pushing rod cavity of the ultra-small injection device of the present invention;
FIG. 4 is a schematic cross-sectional view of a shaft-pushing rod cavity of an ultra-small injection device according to the present invention;
FIG. 5 is a schematic view of the entire structure of an ultra-micro injection device according to the present invention;
FIG. 6 is a schematic side view of the entire structure of an ultra-micro injection device according to the present invention;
FIG. 7 is an enlarged view of a portion of the structure of the ultra-micro injection device of the present invention;
FIG. 8 is a schematic view of the structure of an adjusting bracket of the ultra-micro injection device of the present invention
In the figure, 1, a groove is placed; 2. an adjustment belt; 3. a push rod cavity; 4. an injection tube; 5. a controller; 6. a battery assembly; 7. a planetary reduction mechanism; 8. a motor shaft of the rotating electric machine; 9. a rotating electric machine; 11. a ring gear; 12. a planet wheel; 13. a sun gear; 14. a set square; 15. a motor shaft; 16. an output shaft of the planetary reduction mechanism; 17. a lead screw; 18. a propulsion plate; 19. an injection tube rack; 20. a through hole of the injection end face; 21. a groove for placing the controller; 22. cushion blocks; 23. a through hole is penetrated; 24. buckling; 25. an elastic pad; 26. a four-way adjusting bracket; 27. a connecting rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be described in detail below with reference to specific embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments, and those skilled in the art can easily understand other advantages and effects of the present invention from the disclosure in the specification. The utility model discloses can also implement or use through other different concrete implementation manners, under the condition of conflict-free, the characteristics in following embodiment and the embodiment can make up each other, based on the embodiment in the utility model, all other embodiments that the ordinary skilled in the art obtained under the prerequisite of not making creative work all belong to the scope of protection of the utility model.
EXAMPLE 1 an ultra-micro injection device
An ultra-micro injection device comprising: the device comprises a placing groove 1 for placing a syringe, a push rod cavity 3 for pushing a piston rod of the syringe and an adjusting structure for fixing the ultra-micro injection device body; the device is characterized in that a controller 5 for a doctor to select the static pushing time is arranged on the outer surface of the push rod cavity 3, and a rotating motor 9 and a battery pack 6 are respectively arranged on the inner surface of the push rod cavity 3; the battery assembly 6 is respectively and electrically connected with the rotating motor 9 and the controller 5, and the controller 5 is electrically connected with the rotating motor 9; a through hole for placing a lead screw 17 is arranged on the end surface of the output end of a motor shaft 15 of the rotating motor 9 in a penetrating manner, and a lead screw 17 bearing for enabling the lead screw 17 to freely and linearly move along the axial lead of the motor shaft 15 is arranged on the inner surface of the motor shaft 15 of the rotating motor 9; planetary reduction mechanism 7 is correspondingly arranged between the inner surface of the pushing cavity and the outer surface of motor shaft 15 of rotating motor 9.
The planetary reduction mechanism 7 comprises a sun gear 13, a gear ring 11, a planet gear 12 and a triangular plate 14; a sun gear 13 in a planetary reduction mechanism 7 is fixedly arranged on the outer surface of a motor shaft 15 of a rotating motor 9, a gear ring 11 in the planetary reduction mechanism 7 is fixedly arranged on the inner surface of a pushing cavity, a planetary gear 12 meshed with both the sun gear 13 and the gear ring 11 is arranged between the gear ring 11 and the sun gear 13, a triangular plate 14 is arranged on the end surface of the planetary gear 12, and an output shaft of the planetary reduction mechanism 7 in a cylindrical shape is arranged at the central point of the triangular plate 14.
A gear meshed with a lead screw 17 is arranged on the inner surface of an output shaft of the planetary reduction mechanism 7, the lead screw 17 is meshed with the lead screw 17 through an output shaft 16 of the planetary reduction mechanism to realize that the lead screw 17 freely and linearly reciprocates in a motor shaft 15 of the rotating motor 9, one end of the lead screw 17 penetrating through the output end surface of the motor shaft 15 of the rotating motor 9 is an output end of the lead screw 17, a push plate 18 is arranged at the output end of the lead screw 17, and the push plate 18 is an output end of the push rod cavity 3.
The placing groove 1 and the push rod cavity 3 are integrally connected, and the pushing plate 18 is arranged to slowly push the piston rod of the syringe in the placing groove 1.
In order to conveniently clamp the injection tube 4, an injection tube pipe frame 19 with a spring gasket at the upper end is arranged in the placing groove 1.
In order to facilitate the syringe to be connected with the infusion tube, a through hole 20 for the nozzle of the syringe to penetrate through the injection end surface is arranged on the injection end surface of the placing groove 1.
The bottom of the placing groove 1 is provided with a cushion block 22 matched with the bottom cambered surface of the placing groove 1, and a through hole for the adjusting structure to penetrate through is arranged on the side surface of the cushion block 22 in a penetrating mode.
In order to meet the requirement of placing the ultra-micro injection device on the arm of a patient, a regulating structure is arranged as a regulating belt. Set up the side surface that adjusting band 2 runs through cushion 22, and in order to be suitable for different patients' arm and enclose the size, set up the first end setting of adjusting band and run through hole 23, the second end setting of adjusting band and the buckle 24 that runs through hole 23 adaptation.
In order to reduce the volume of the ultra-micro device, a groove for placing the controller 5 is provided on the outer surface of the push chamber.
In order to ensure that the doctor selects the dead-reckoning time, a control button is arranged on the outer surface of the controller 5.
EXAMPLE 2 an ultra-micro injection device
An ultra-micro injection device comprising: the device comprises a placing groove 1 for placing an injector, a push rod cavity 3 for pushing a piston rod of the injector, an adjusting structure for fixing the body of the ultra-micro injection device and a controller 5 for a doctor to select static pushing time; the device is characterized in that a controller 5 for a doctor to select the static pushing time is arranged on the outer surface of the push rod cavity 3, and a rotating motor 9 and a battery pack 6 are respectively arranged on the inner surface of the push rod cavity 3; the battery assembly 6 is respectively and electrically connected with the rotating motor 9 and the controller 5, and the controller 5 is electrically connected with the rotating motor 9; a through hole for placing a lead screw 17 is arranged on the end surface of the output end of a motor shaft 15 of the rotating motor 9 in a penetrating manner, and a lead screw 17 bearing for enabling the lead screw 17 to freely and linearly move along the axial lead of the motor shaft 15 is arranged on the inner surface of the motor shaft 15 of the rotating motor 9; planetary reduction mechanism 7 is correspondingly arranged between the inner surface of the pushing cavity and the outer surface of motor shaft 15 of rotating motor 9.
The planetary reduction mechanism 7 comprises a sun gear 13, a gear ring 11, a planet gear 12 and a triangular plate 14; a sun gear 13 of the planetary reduction mechanism 7 is fixedly arranged on the outer surface of a motor shaft 15 of the rotating electric machine 9, a ring gear 11 of the planetary reduction mechanism 7 is fixedly arranged on the inner surface of the pushing cavity, a planetary gear 12 meshed with both the sun gear 13 and the ring gear 11 is arranged between the ring gear 11 and the sun gear 13, a triangular plate 14 is arranged on the end surface of the planetary gear 12, and a cylindrical planetary reduction mechanism output shaft 16 is arranged at the central point of the triangular plate 14.
A gear meshed with a lead screw 17 is arranged on the inner surface of an output shaft of the planetary reduction mechanism 7, the lead screw 17 is meshed with the lead screw 17 through an output shaft 16 of the planetary reduction mechanism to realize that the lead screw 17 freely and linearly reciprocates in a motor shaft 15 of the rotating motor 9, one end of the lead screw 17 penetrating through the output end surface of the motor shaft 15 of the rotating motor 9 is an output end of the lead screw 17, a push plate 18 is arranged at the output end of the lead screw 17, and the push plate 18 is an output end of the push rod cavity 3.
The placing groove 1 and the push rod cavity 3 are integrally connected, and the pushing plate 18 is arranged to slowly push the piston rod of the syringe in the placing groove 1.
In order to conveniently clamp the injection tube 4, an injection tube pipe frame 19 with a spring gasket at the upper end is arranged in the placing groove 1.
In order to facilitate the syringe to be connected with the infusion tube, a through hole 20 for the nozzle of the syringe to penetrate through the injection end surface is arranged on the injection end surface of the placing groove 1.
The bottom of the placing groove 1 is provided with a cushion block 22 matched with the bottom cambered surface of the placing groove 1, and a through hole for the adjusting structure to penetrate through is arranged on the side surface of the cushion block 22 in a penetrating mode.
In order to meet the requirement that the ultra-micro injection device realizes ultra-micro injection at different angles, the adjusting structure is a four-way adjusting bracket 26, a connecting rod 27 penetrates through the side surface of the cushion block 22, and the four-way adjusting bracket 26 is hinged at two ends of the connecting rod 27.
In order to reduce the volume of the ultra-micro device, a groove for placing the controller 5 is provided on the outer surface of the push chamber.
In order to ensure that the doctor selects the dead-reckoning time, a control button is arranged on the outer surface of the controller 5.
Claims (10)
1. The ultramicro injection device comprises a placing groove for placing an injector, a push rod cavity for pushing a piston rod of the injector and an adjusting structure for fixing the ultramicro injection device body, and is characterized in that the placing groove is arranged at the output end of the push rod cavity, and a deceleration pushing structure for slowly pushing the piston rod of the injector is arranged in the push rod cavity; a controller for a user to select static pushing time is arranged on the outer surface of the push rod cavity, and the controller is electrically connected with the speed reduction propelling structure; the lower end of the placing groove is provided with an adjusting structure; the inner surface of the push rod cavity is provided with a battery assembly which is respectively and electrically connected with the controller and the deceleration propulsion structure.
2. The ultra-micro injection device according to claim 1, wherein the deceleration propulsion mechanism comprises: the rotating motor is arranged in the pushing cavity, the lead screw is used for pushing the piston rod of the syringe, and the planetary reduction mechanism is used for reducing the rotating speed of the motor; the end face of the output end of a motor shaft of the rotating motor is provided with a through hole for placing a lead screw in a penetrating mode, a lead screw bearing for enabling the lead screw to move freely and linearly along the axial lead of the motor shaft is arranged inside the motor shaft of the rotating motor, a planetary speed reducing mechanism is fixedly arranged on the outer surface of the motor shaft of the rotating motor, an output shaft of the planetary speed reducing mechanism meshed with the lead screw is sleeved at the end of the output end face of the motor shaft of the rotating motor, and a meshed tooth for meshing the lead screw is arranged on.
3. The ultra-micro injection device according to claim 2, wherein the planetary reduction mechanism is a simple planetary mechanism comprising a ring gear, a planetary gear, a sun gear, a triangle plate; the inner surface of the pushing cavity is fixedly provided with a gear ring, the outer surface of a motor shaft of the rotating motor is fixedly provided with a sun wheel, a planet wheel which is meshed with the gear ring and the sun wheel is correspondingly arranged between the gear ring and the sun wheel, the end surface of the planet wheel is provided with a triangular plate, and the middle point of the triangular plate is provided with an output shaft of a planet speed reducing mechanism.
4. The ultra-micro injection device according to claim 3, wherein the planetary reduction gear mechanism has an output shaft having a larger diameter than an axis of a motor shaft of the rotating motor.
5. The ultra-micro injection device according to claim 3, wherein a horizontal distance between a tooth surface of the planetary reduction gear and the output end of the screw is smaller than a horizontal distance between an output surface of the rotating motor and the output end of the screw.
6. The ultra-micro injection device according to claim 1, wherein a syringe holder for holding a syringe is provided in the placement groove.
7. The ultra-micro injection device according to claim 1, wherein a through hole through which the syringe nozzle penetrates the injection end surface is provided in the injection end surface of the placement groove.
8. The ultra-micro injection device according to claim 2, wherein a pad adapted to the bottom surface of the placement groove is provided at the bottom of the placement groove for providing the adjustment structure.
9. The ultra-micro device according to claim 1, wherein a groove for placing the controller is provided on an outer surface of the push chamber in order to reduce a volume of the ultra-micro device.
10. The ultra-micro injection device according to claim 9, wherein a control button is provided on an outer surface of the controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020705635.2U CN212756736U (en) | 2020-04-30 | 2020-04-30 | Ultra-micro injection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020705635.2U CN212756736U (en) | 2020-04-30 | 2020-04-30 | Ultra-micro injection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212756736U true CN212756736U (en) | 2021-03-23 |
Family
ID=75067179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020705635.2U Expired - Fee Related CN212756736U (en) | 2020-04-30 | 2020-04-30 | Ultra-micro injection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212756736U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113332541A (en) * | 2021-05-20 | 2021-09-03 | 中国人民解放军陆军军医大学第二附属医院 | Hand-held speed control device for hypodermic injection |
-
2020
- 2020-04-30 CN CN202020705635.2U patent/CN212756736U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113332541A (en) * | 2021-05-20 | 2021-09-03 | 中国人民解放军陆军军医大学第二附属医院 | Hand-held speed control device for hypodermic injection |
| CN113332541B (en) * | 2021-05-20 | 2022-09-20 | 中国人民解放军陆军军医大学第二附属医院 | Hand-held speed control device for hypodermic injection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210323 |
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| CF01 | Termination of patent right due to non-payment of annual fee |