CN211068480U - Automatic injection device - Google Patents
Automatic injection device Download PDFInfo
- Publication number
- CN211068480U CN211068480U CN201921639060.2U CN201921639060U CN211068480U CN 211068480 U CN211068480 U CN 211068480U CN 201921639060 U CN201921639060 U CN 201921639060U CN 211068480 U CN211068480 U CN 211068480U
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- assembly
- injection
- injection device
- needle
- pen core
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Abstract
The utility model provides an automatic injection device, include: a housing; a bracket assembly; an injection assembly; a first driving member; the bracket assembly includes: the injection device comprises a bracket body, a support body and a support frame, wherein the bracket body is formed into a flat plate, two sides of which are respectively provided with two mounting holes, and the flat plate is used for mounting an injection assembly; the two ends of the screw rod are movably connected with the two mounting holes on one side of the bracket body respectively; the transmission nut is sleeved on the screw rod and used for pushing the injection assembly to move along the length direction of the shell; the first driving piece is arranged at one end of the screw rod and used for driving the driven nut to move along the axial direction of the screw rod. According to the utility model discloses automatic injection device is convenient for not only realize the automation of injection, reduces nursing staff's work load, improves work efficiency, can reduce the fear of patient at the acupuncture in-process moreover and feel.
Description
Technical Field
The utility model relates to the technical field of medical equipment, especially, relate to an automatic injection device.
Background
Some patients fear injection in the treatment process, and the fear feeling can be generated when the injection needle is seen. The injection process in the prior art is usually operated manually, and the needle head is exposed before and after injection, so that the needle head is polluted, and accidental injury or increased fear of patients can be caused.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention provides an automatic injection device.
According to the utility model discloses automatic injection device of first aspect embodiment includes: a housing defining a mounting cavity therein; the bracket component is arranged in the mounting cavity along the length direction of the shell; the injection assembly is arranged on the bracket assembly and movably arranged in the mounting cavity between a needle retracting position and an injection position, when the injection assembly is positioned at the needle retracting position, a needle head of the injection assembly is retracted, and when the injection assembly is positioned at the injection position, at least one part of the needle head extends out of the mounting cavity; the bracket assembly includes: the injection device comprises a bracket body, a support and a connecting piece, wherein the bracket body is formed into a flat plate, two sides of which are respectively provided with two mounting holes, and the flat plate is used for mounting the injection assembly; the two ends of the screw rod are movably connected with the two mounting holes on one side of the bracket body respectively; the transmission nut is sleeved on the screw rod and used for pushing the injection assembly to move along the length direction of the shell; the first driving piece is arranged at one end of the screw rod and used for driving the driven nut to move along the axial direction of the screw rod.
According to the utility model discloses automatic injection device rotates through first driving piece drive lead screw, and the lead screw drives drive nut and removes, and drive nut promotes injection subassembly and removes, and this automatic injection device can realize automatic acupuncture or the automatic syringe needle of extracting, and this automatic injection device is not only convenient for realize the automation of injection, reduces nursing staff's work load, improves work efficiency, can reduce the patient and feel at the fear of acupuncture in-process moreover.
According to an embodiment of the present invention, the bracket assembly further comprises: and the bearing is sleeved at the other end of the screw rod.
According to an embodiment of the present invention, the bracket assembly further comprises: the two ends of the guide rod are respectively connected with the two mounting holes on the other side of the bracket body so as to mount the injection assembly; and the limiting cushion blocks are respectively sleeved at two ends of the guide rod.
According to an embodiment of the present invention, the injection assembly comprises: the main support is arranged in the mounting cavity, a long-strip-shaped arc-shaped mounting part is formed at one end of the main support, two mounting holes which are communicated along the length direction of the main support are formed in one side of the other end of the main support, and the support assembly is movably connected with the other end of the main support; the pen core support is arranged in the mounting part, and a pen core cavity extending along the axial direction of the pen core support is limited in the pen core support; the pen core is arranged in the pen core cavity, and a liquid medicine cavity extending along the axial direction of the pen core is limited in the pen core; and the piston rod is arranged in the liquid medicine cavity in a telescopic manner along the axial direction of the pen core.
According to an embodiment of the invention, the first driving member is a dc motor.
According to an embodiment of the present invention, the injection assembly further comprises: and the second driving piece is arranged at one end of the piston rod and is used for driving the piston rod to move along the axial direction of the piston rod.
According to an embodiment of the invention, the second driving member is a stepping motor.
According to an embodiment of the present invention, the automatic injection device further comprises: the needle hiding cap is arranged on the shell and communicated with the mounting cavity, and the needle head extends out of the needle hiding cap when the injection assembly is positioned at the injection position; the inductor is arranged in the hidden needle cap and connected with the first driving piece, and the inductor can be used for inducing whether the hidden needle cap contacts the skin or not and sending feedback information to the first driving piece after inducing the skin.
According to the utility model discloses an embodiment, the inductor is infrared inductor.
According to the utility model discloses an embodiment, infrared inductor includes a plurality of induction points, infrared inductor is a plurality of feedback information behind the skin is all sensed to the induction point.
Drawings
Fig. 1 is an exploded view of an automatic injection device according to an embodiment of the present invention;
fig. 2 is a schematic diagram of an injection assembly of an automatic injection device according to an embodiment of the present invention;
fig. 3 is a schematic structural view of a carriage assembly of an automatic injection device according to an embodiment of the present invention;
fig. 4 is an exploded view of a carriage assembly of an automatic injection device according to an embodiment of the present invention;
fig. 5 is an exploded view of an injection assembly of an automatic injection device according to an embodiment of the present invention.
Reference numerals:
an automatic injection device 100;
a housing 10; a needle hiding cap 11; an end cap 12; a main control board 13; an injection key main control board 14; an injection key 15; a battery 16; a display screen 17; a locking cap 18; a needle 19;
an injection assembly 20; a main support 21; a cartridge holder 22; a pen core 23; a piston rod 24; a second driving member 25; a driving member fixing seat 26; an interposer 27; a reach switch 28; a sleeve 29;
a bracket assembly 30; a holder body 31; a screw rod 32; a drive nut 33; a first driving member 34; a bearing 35; a guide rod 36; and a position limiting cushion block 37.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The following first describes the automatic injection device 100 according to an embodiment of the present invention in detail with reference to the drawings.
As shown in fig. 1-5, an automatic injection device 100 according to an embodiment of the present invention includes a housing 10, a holder assembly 30, and an injection assembly 20.
Specifically, the housing 10 defines a mounting cavity therein, the carriage assembly 30 is disposed within the mounting cavity along a length of the housing 10, the injection assembly 20 is mounted on the carriage assembly 30 and movably disposed within the mounting cavity between a retracted position and an injection position, the needle 19 of the injection assembly 20 is retracted when the injection assembly 20 is in the retracted position, and at least a portion of the needle 19 extends out of the mounting cavity when the injection assembly 20 is in the injection position. The bracket assembly 30 includes a bracket body 31, a lead screw 32, a transmission nut 33, and a first driving member 34. The support body 31 is formed as a flat plate with two mounting holes on two sides for mounting the injection assembly 20, two ends of the screw rod 32 are movably connected with the two mounting holes on one side of the support body 31, the transmission nut 33 is sleeved on the screw rod 32 for pushing the injection assembly 20 to move along the length direction of the shell 10, and the first driving piece 34 is arranged at one end of the screw rod 32 for driving the transmission nut 33 to move along the axial direction of the screw rod 32.
In other words, the automatic injection device 100 is primarily comprised of the housing 10, the holder assembly 30, and the injection assembly 20. The injection assembly 20 is arranged in the mounting cavity, the bracket body 31 is used for mounting the injection assembly 20, the screw rod 32 is arranged at one end of the first driving piece 34 and is connected with the bracket body 31, the transmission nut 33 is connected with the screw rod 32, the first driving piece 34 drives the screw rod 32 to rotate, the screw rod 32 drives the transmission nut 33 to move, the injection assembly 20 fixed on the bracket body 31 moves forwards or backwards under the action of the transmission nut 33, and therefore the needle 19 leaks out of the housing 10 or retracts into the housing 10.
From this, according to the utility model discloses automatic injection device 100 rotates through first driving piece 34 drive lead screw 32, and lead screw 32 drives transmission nut 33 and removes, and transmission nut 33 promotes injection subassembly 20 and removes, and this automatic injection device 100 can realize automatic acupuncture or extract syringe needle 19 automatically, and this automatic injection device 100 is not only convenient for realize the automation of injection, reduces nursing staff's work load, improves work efficiency, can reduce the patient and feel at the fear of acupuncture in-process moreover.
According to the utility model discloses an embodiment, bracket component 30 still includes bearing 35, and bearing 35 cover is established at the other end of lead screw 32, and bearing 35 plays the supporting role, the installation and the transmission of the lead screw 32 of being convenient for.
Optionally, the carriage assembly 30 further includes a guide bar 36 and a stop block 37.
Specifically, two ends of the guide rod 36 are respectively connected with two mounting holes on the other side of the bracket body 31 for mounting the injection assembly 20, the limiting cushion blocks 37 are respectively sleeved at two ends of the guide rod 36, and the guide rod 36 ensures the movement direction of the injection assembly 20.
In one embodiment of the present invention, injection assembly 20 includes a main support 21, a cartridge support 22, a cartridge 23, and a piston rod 24.
Specifically, main support 21 establishes at the installation intracavity, the one end of main support 21 forms long banding arc installation department, one side of the main support 21 other end is equipped with two mounting holes that link up along its length direction, bracket component 30 links to each other movably with the other end of main support 21, refill support 22 establishes in the installation department, inject the refill chamber that has its axial extension along its in refill support 22, refill 23 establishes at the refill intracavity, inject the liquid medicine chamber that has its axial extension along its in refill 23, piston rod 24 establishes the liquid medicine intracavity along the axial telescopically of refill 23.
That is to say, the one end of main support 21 forms long banding installation department, and the upper surface of installation department forms the arc so that laminate mutually with refill support 22's surface, and refill support 22 can fix in the installation department more firmly, and main support 21 simple structure is convenient for assemble. The syringe assembly 20 further includes a sleeve 29, the sleeve 29 being disposed over the plunger rod 24 to facilitate mounting and securing of the plunger rod 24. The end of the cartridge holder 22 connected with the needle 19 is also sleeved with a locking cap 18, and the locking cap 18 is convenient for installing the needle 19.
Alternatively, the first driving member 34 is a dc motor, and it should be noted that other types of motors can be used according to specific requirements.
According to an embodiment of the present invention, the injection assembly 20 further comprises a second drive member 25, the second drive member 25 being provided at one end of the piston rod 24 for driving the piston rod 24 in axial movement thereof.
Specifically, a second screw rod (not shown) is fixed at one end of the second driving member 25, when the second driving member 25 rotates, the second screw rod and the second driving member 25 rotate synchronously, and the piston rod 24 sleeved on the second screw rod cannot rotate because of being limited by the limiting structure inside the sleeve 29, and can only move along the axial direction thereof to propel the liquid medicine.
Further, the second driver 25 is a stepping motor.
Preferably, the automatic injection device 100 further comprises a needle hider cap 11 and a sensor.
Specifically, the needle hiding cap 11 is arranged on the shell 10 and communicated with the installation cavity, the needle 19 extends out of the needle hiding cap 11 when the injection assembly 20 is located at an injection position, the sensor is arranged in the needle hiding cap 11 and connected with the first driving piece 34, the sensor can be used for sensing whether the needle hiding cap 11 contacts with the skin or not and sending feedback information to the first driving piece 34 after sensing the skin, and the detachable end cover 12 is further arranged at the front end of the needle hiding cap 11.
That is to say, after the inductor senses that the front end of the hidden needle cap 11 contacts the skin of the human body, the inductor can send feedback information to the first driving piece 34, and the first driving piece 34 can drive the needle 19 to prick the skin when the hidden needle cap 11 contacts the skin, so that the probability that the needle 19 is exposed in the sight of the patient is further reduced, the fear of the patient is reduced, meanwhile, the needle 19 can be protected from being polluted, and the accidental injury of the needle 19 to the human body is reduced.
In one embodiment of the present invention, the sensor is an infrared sensor.
The infrared sensor is sensitive in response and can feed back information to the first driving piece 34 in time.
Further, infrared inductor includes a plurality of induction points, and infrared inductor all senses skin back feedback information at a plurality of induction points.
Can be equipped with three infrared induction point on the infrared inductor, because a face can be confirmed to three points, when three infrared induction point all received feedback information, skin was pricked into to first driving piece 34 drive injection assembly 20's syringe needle 19, and after the injection was accomplished, first driving piece 34 drive injection assembly 20 released skin, got back to the normal position, set up three infrared induction point and can improve the security of using, hidden needle cap 11 front end can be equipped with the detachable end cover.
It should be noted that the injection device 100 further includes a main control board 13, an injection key main control board 14, an injection key 15, a battery 16 and a display screen 17, wherein the main control board 13 and the injection key main control board 14 are mainly used for controlling an injection process and an injection dosage, the injection key 16 is connected to the second driving member 25, automatic injection can be achieved by pressing the injection key 16, the injection assembly 20 may further include two driving member fixing seats 26, a position switch 28 and an adapter board 27, wherein the driving member fixing seats 26 are mainly used for fixing to the second driving member 25, and the position switch 28 is turned on after the needle hiding cap 11 contacts the skin.
The working principle of the automatic injection device 100 is described in detail below: after the hidden needle cap 11 is contacted with the skin, the injection key 16 is pressed, the information of an infrared sensor in the hidden needle cap 11 is fed back, the first driving piece 34 is started, the screw rod 32 on the first driving piece 34 rotates and drives the transmission nut 33 to move forwards along the axial direction, the transmission nut 33 pushes the main support 21 to move forwards along the axial direction, the pen core support 22, the pen core 23, the piston rod 24 and the sleeve 29 which are fixed on the main support 21 move synchronously with the main support 21 under the action of the transmission nut 33, and the needle 19 leaks out of the hidden needle cap 11 and pricks the skin. The second driving member 25 starts to operate, and pushes the piston rod 24 to move axially relative to the pen core 23, so as to push the liquid medicine in the pen core 23 to inject. After the injection of the set dose of the main control board 13 is completed, the screw rod 32 on the first driving member 34 rotates to drive the transmission nut 33 to axially move backwards, the refill support 22, the refill 23, the piston rod 24 and the sleeve 29 synchronously and axially move backwards with the main support 21, and the needle 19 exits from the skin and returns to the original point.
In conclusion, according to the utility model discloses automatic injection device 100, through first driving piece 34 drive lead screw 32 and rotate, lead screw 32 drives transmission nut 33 and moves, and transmission nut 33 promotes injection subassembly 20 and moves, and this automatic injection device 100 can realize automatic acupuncture or extract syringe needle 19 automatically, and this automatic injection device 100 is not only convenient for realize the automation of injection, reduces nursing staff's work load, improves work efficiency, can reduce the patient and feel at the fear of acupuncture in-process moreover.
The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. An automatic injection device, comprising:
a housing defining a mounting cavity therein;
the bracket component is arranged in the mounting cavity along the length direction of the shell;
the injection assembly is arranged on the bracket assembly and movably arranged in the mounting cavity between a needle retracting position and an injection position, when the injection assembly is positioned at the needle retracting position, a needle head of the injection assembly is retracted, and when the injection assembly is positioned at the injection position, at least one part of the needle head extends out of the mounting cavity;
the bracket assembly includes:
the injection device comprises a bracket body, a support and a connecting piece, wherein the bracket body is formed into a flat plate, two sides of which are respectively provided with two mounting holes, and the flat plate is used for mounting the injection assembly;
the two ends of the screw rod are movably connected with the two mounting holes on one side of the bracket body respectively;
the transmission nut is sleeved on the screw rod and used for pushing the injection assembly to move along the length direction of the shell;
the first driving piece is arranged at one end of the screw rod and used for driving the driven nut to move along the axial direction of the screw rod.
2. The automatic injection device of claim 1, wherein the carriage assembly further comprises:
and the bearing is sleeved at the other end of the screw rod.
3. The automatic injection device of claim 1, wherein the carriage assembly further comprises:
the two ends of the guide rod are respectively connected with the two mounting holes on the other side of the bracket body so as to mount the injection assembly;
and the limiting cushion blocks are respectively sleeved at two ends of the guide rod.
4. The automatic injection device of claim 1, wherein the injection assembly comprises:
the main support is arranged in the mounting cavity, a long-strip-shaped arc-shaped mounting part is formed at one end of the main support, two mounting holes which are communicated along the length direction of the main support are formed in one side of the other end of the main support, and the support assembly is movably connected with the other end of the main support;
the pen core support is arranged in the mounting part, and a pen core cavity extending along the axial direction of the pen core support is limited in the pen core support;
the pen core is arranged in the pen core cavity, and a liquid medicine cavity extending along the axial direction of the pen core is limited in the pen core;
and the piston rod is arranged in the liquid medicine cavity in a telescopic manner along the axial direction of the pen core.
5. The automatic injection device of claim 1, wherein the first drive member is a dc motor.
6. The automatic injection device of claim 4, wherein the injection assembly further comprises:
and the second driving piece is arranged at one end of the piston rod and is used for driving the piston rod to move along the axial direction of the piston rod.
7. The automatic injection device of claim 6, wherein the second drive member is a stepper motor.
8. The automatic injection device of any of claims 1-7, further comprising:
the needle hiding cap is arranged on the shell and communicated with the mounting cavity, and the needle head extends out of the needle hiding cap when the injection assembly is positioned at the injection position;
the inductor is arranged in the hidden needle cap and connected with the first driving piece, and the inductor can be used for inducing whether the hidden needle cap contacts the skin or not and sending feedback information to the first driving piece after inducing the skin.
9. The automatic injection device of claim 8, wherein the sensor is an infrared sensor.
10. The automatic injection device of claim 9, wherein the infrared sensor comprises a plurality of sensing points, the infrared sensor feeding back information after the skin is sensed at each of the plurality of sensing points.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921639060.2U CN211068480U (en) | 2019-09-29 | 2019-09-29 | Automatic injection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921639060.2U CN211068480U (en) | 2019-09-29 | 2019-09-29 | Automatic injection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211068480U true CN211068480U (en) | 2020-07-24 |
Family
ID=71642926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921639060.2U Active CN211068480U (en) | 2019-09-29 | 2019-09-29 | Automatic injection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211068480U (en) |
-
2019
- 2019-09-29 CN CN201921639060.2U patent/CN211068480U/en active Active
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