CN210963390U - Injection device capable of automatically inserting and withdrawing needle - Google Patents
Injection device capable of automatically inserting and withdrawing needle Download PDFInfo
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- CN210963390U CN210963390U CN201921639045.8U CN201921639045U CN210963390U CN 210963390 U CN210963390 U CN 210963390U CN 201921639045 U CN201921639045 U CN 201921639045U CN 210963390 U CN210963390 U CN 210963390U
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Abstract
The utility model provides an injection device that can advance and withdraw needle automatically, include: a housing defining a mounting cavity therein; the injection assembly is 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 first driving assembly is arranged in the mounting cavity and connected with the injection assembly so as to drive the injection assembly to move. According to the utility model discloses injection device that can advance automatically and go out needle through the automatic acupuncture of first drive assembly drive injection subassembly or extracts the syringe needle automatically, this 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 injection device that can advance and withdraw needle automatically.
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 utility model provides an injection device that can advance out of needle automatically, the device can realize advancing out of needle automatically, improves work efficiency, reduces the fear of patient's acupuncture in-process and feels.
According to the utility model discloses an injection device that can advance automatically and exit needle, include: a housing defining a mounting cavity therein; an injection assembly movably disposed within the mounting cavity between a retracted position and an injection position, wherein a needle of the injection assembly is retracted when the injection assembly is in the retracted position, and wherein at least a portion of the needle extends out of the mounting cavity when the injection assembly is in the injection position; the first driving assembly is arranged in the mounting cavity and connected with the injection assembly to drive the injection assembly to move.
According to the utility model discloses injection device that can advance automatically and go out needle through the automatic acupuncture of first drive assembly drive injection subassembly or extracts the syringe needle automatically, this 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.
An injection device capable of automatically advancing and retracting a needle according to embodiments of the present invention may also have the following additional technical features.
According to an embodiment of the present invention, the injection assembly is movable along the axial direction of the needle between the retracted position and the injection position, the first drive assembly comprises: a first drive shaft extending axially of said needle and movable axially thereof, said first drive shaft being connected to at least a portion of said injection assembly for driving said injection assembly; the first driving piece is connected with the first driving shaft so as to drive the first driving shaft to move.
According to an embodiment of the invention, the first drive shaft is formed as a screw, the injection assembly is provided with a mating piece corresponding to the screw, the screw is rotatable around its axis to drive the injection assembly along its axial movement.
According to an embodiment of the present invention, the first driving member is formed as a first motor, and the first motor is connected to the first driving shaft to drive the first driving shaft to rotate.
According to an embodiment of the present invention, the first driving assembly further comprises: the first bracket is arranged in the mounting cavity, and the first motor is mounted on the first bracket; and the first transmission assembly is connected with a motor shaft of the first motor and the first driving shaft respectively so as to link the first motor and the first driving shaft.
According to an embodiment of the present invention, the first transmission assembly includes: the first driving wheel is arranged on a motor shaft of the first motor and rotates synchronously with the motor shaft; the first driven wheel is sleeved on the first driving shaft and meshed with the first driving wheel, and the radial size of the first driving wheel is larger than that of the first driven wheel.
According to an embodiment of the present invention, the first driving assembly further comprises: the first bearing seat is arranged on one side of the injection assembly, and at least one part of the first bearing seat abuts against the injection assembly; the first bearing is arranged on the first bearing seat, and the other end of the first driving shaft is pivotally connected with the first bearing seat.
According to an embodiment of the present invention, the injection device capable of automatically inserting and withdrawing a needle further comprises: the two second bearing seats are respectively arranged on two opposite sides of the injection assembly and respectively abut against the injection assembly; the two second bearings are respectively arranged on the corresponding second bearings; and the transmission rod penetrates through two opposite sides of the injection assembly and is respectively connected with the two bearings.
According to an embodiment of the invention, the first electric machine is formed as a direct current machine.
According to an embodiment of the present invention, the injection device capable of automatically inserting and removing a needle 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 assembly, 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 assembly 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 a portion of an injection device capable of automatically advancing and retracting a needle in accordance with an embodiment of the present invention;
fig. 2 is an exploded view of a first drive assembly of an injection device capable of automatically advancing and retracting a needle in accordance with an embodiment of the present invention;
fig. 3 is yet another partial exploded view of an injection device capable of automatically advancing and retracting a needle in accordance with an embodiment of the present invention.
Reference numerals:
an injection device 100 capable of automatically entering and exiting a needle;
an injection assembly 200;
a housing 10;
a first drive assembly 20; a first drive shaft 21; a first driving member 22; a first bracket 23; a first transmission assembly 24; a first drive wheel 241; a first driven pulley 242; a first bearing 25; a first bearing housing 26; a round flat key 27;
a second bearing 30; a second bearing housing 31; a transmission rod 32;
a needle hiding cap 40; and an infrared sensor 41.
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.
An injection device 100 capable of automatically inserting and withdrawing a needle according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1 to 3, an injection device 100 capable of automatically inserting and withdrawing a needle according to an embodiment of the present invention includes a housing 10, an injection assembly 200, and a first drive assembly 20.
Specifically, housing 10 defines a mounting cavity therein, injection assembly 200 is movably disposed within the mounting cavity between a retracted position and an injection position, a needle of injection assembly 200 is retracted when injection assembly 200 is in the retracted position, at least a portion of the needle extends out of the mounting cavity when injection assembly 200 is in the injection position, first drive assembly 20 is disposed within the mounting cavity, and first drive assembly 20 is coupled to injection assembly 200 for driving injection assembly 200 to move.
In other words, the injection device for automatically inserting and withdrawing the needle mainly comprises a housing 10, an injection assembly 200 and a first driving assembly 20, wherein a mounting cavity is defined in the housing 10, the injection assembly 200 is arranged in the mounting cavity, the first driving assembly 20 is also arranged in the mounting cavity, the first driving assembly 20 is connected with the injection assembly 200, the first driving assembly 20 can drive the needle head of the injection assembly 200 to automatically insert into the body of the patient or automatically withdraw from the body of the patient, the function of quickly and automatically inserting and withdrawing the needle is realized, the manual operation procedure of a nursing staff is reduced, the working difficulty is reduced, and the fear of the patient in the process of inserting the needle or withdrawing the needle is reduced.
Therefore, according to the utility model discloses injection device 100 that can advance automatically and go out needle through the automatic acupuncture of first drive assembly 20 drive injection assembly 200 or the automatic syringe needle of extracting, this 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 moreover and feel at the fear of pricking the needle in-process.
According to some embodiments of the present invention, the injection assembly 200 is movable in the axial direction of the needle between a retracted position and an injection position, and the first drive assembly 20 comprises a first drive shaft 21 and a first drive member 22.
Specifically, a first drive shaft 21 extends axially of the needle and is movable in the axial direction thereof, the first drive shaft 21 is coupled to at least a portion of the injection assembly 200 to drive the injection assembly 200, and a first drive member 22 is coupled to the first drive shaft 21 to drive the first drive shaft 21 in movement.
In other words, the first driving assembly 20 is mainly composed of the first driving shaft 21 and the first driving member 22, wherein the first driving member 22 can drive the first driving shaft 21 to rotate, and the first driving shaft 21 drives the injection assembly 200 to move along the axial direction of the injection needle during the rotation process so as to insert or withdraw the needle into or out of the body of the patient.
Preferably, the first drive shaft 21 is formed as a lead screw, and the syringe assembly 200 is provided with a counterpart to the lead screw, which is rotatable about its axis to drive the syringe assembly 200 in its axial direction.
Alternatively, the first driving member 22 is formed as a first motor connected to the first driving shaft 21 to drive the first driving shaft 21 to rotate.
According to an embodiment of the present invention, the first driving assembly 20 further comprises a first bracket 23 and a first transmission assembly 24.
Specifically, the first bracket 23 is arranged in the mounting cavity, the first motor is mounted on the first bracket 23, and the first transmission assembly 24 is respectively connected with the motor shaft of the first motor and the first driving shaft 21 so as to link the first motor and the first driving shaft 21. That is to say, the first motor is installed in the installation cavity through the first bracket 23, and the structure is stable and convenient to install.
Further, the first transmission assembly 24 includes a first drive pulley 241 and a first driven pulley 242.
Specifically, the first driving wheel 241 is disposed on a motor shaft of the first motor and rotates synchronously with the motor shaft, the first driven wheel 242 is sleeved on the first driving shaft 21 and is engaged with the first driving wheel 241, a radial dimension of the first driving wheel is greater than a radial dimension of the first driven wheel 242, and power transmission is stable.
In one embodiment of the present invention, the first drive assembly 20 further comprises a first bearing seat 26 and a first bearing 25.
Specifically, a first bearing seat 26 is disposed at one side of the injection assembly 200, at least a portion of the first bearing seat abuts against the injection assembly 200, a first bearing 25 is disposed on the first bearing seat 26, the other end of the first driving shaft 21 is pivotally connected to the first bearing seat 26, and the first driving shaft 21 is driven by the first motor to rotate and drive the injection assembly 200 to move along the axial direction of the needle. The first drive assembly 20 may also include a round key 27, a round key 26, and a torque transmitting key.
Optionally, the injection device 100 capable of automatically entering and exiting the needle further comprises two second bearing housings 31, two second bearings 30 and a transmission rod 32.
Specifically, two second bearing seats 31 are respectively disposed on two opposite sides of the injection assembly 200 and respectively abut against the injection assembly 200, two second bearings 30 are respectively disposed on the corresponding second bearings 30, and the transmission rod 32 penetrates through two opposite sides of the injection assembly 200 and is respectively connected to the two bearings.
In other words, the two second bearings 30 are respectively fixed on the two second bearing seats 31, the structure is stable, the two ends of the transmission rod 32 are respectively pivotally connected with the two second bearings 30, and the second bearing seats 31, the second bearings 30, the transmission member and the second bearing seats 31 can balance and stabilize the structure of the injection assembly 200 during the movement of the injection assembly 200 driven by the first driving assembly 20.
The utility model discloses an embodiment, first motor can be direct current motor, according to specific needs, also can choose other types of motors for use.
According to an embodiment of the present invention, the injection device 100 capable of automatically inserting and withdrawing a needle further includes a needle hiding cap 40 and a sensor.
Specifically, the hidden needle cap 40 is arranged on the housing 10 and communicated with the installation cavity, when the injection assembly 200 is located at the injection position, the needle head extends out of the hidden needle cap 40, the sensor is arranged in the hidden needle cap 40 and connected with the first driving assembly 20, and the sensor can be used for sensing whether the hidden needle cap 40 contacts the skin or not and sending feedback information to the first driving assembly 20 after sensing the skin.
That is to say, after the inductor senses that the front end of the hidden needle cap 40 contacts human skin, can send feedback information to first driving piece 22, first driving piece 22 just can drive the syringe needle to prick skin when hidden needle cap 40 contacts skin, further reduces the probability that the syringe needle exposes in patient's sight, reduces patient's fear and feels, also can protect the syringe needle not contaminated simultaneously, reduces the accidental injury that the syringe needle caused to the human body.
Further, the sensor is infrared sensor 41, and infrared sensor 41 reacts sensitively, can in time feed back information to first driving piece 22.
Optionally, the infrared sensor 41 includes a plurality of sensing points, and the infrared sensor 41 feeds back information after the skin is sensed at each of the plurality of sensing points.
Specifically, three infrared sensing points may be disposed on the infrared sensor 41, and since three points may determine a plane, when the three infrared sensing points all receive feedback information, the first driving member 22 drives the needle of the injection assembly 200 to pierce the skin, and after the injection is completed, the first driving member 20 drives the injection assembly 200 to push out the skin, and return to the original position, and the three infrared sensing points are disposed to improve the safety of use.
It should be noted that the injection device 100 capable of automatically inserting and withdrawing a needle further includes an end cap 84, a first main control board 85, a second main control board 86, and an injection key 87. Wherein the end cap 84 is adapted to cooperate with the needle hider cap 40 for protection. The first and second main control boards 85 and 86 are used to collect feedback signals and control the operation of the injection assembly 200 and the second drive assembly 70 according to the injection key 87 or the button assembly, respectively.
According to the utility model discloses injection device 100 that can advance automatically and go out needle through the automatic acupuncture of first drive assembly 20 drive injection assembly 200 or the automatic syringe needle of extracting, this 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 moreover and feel at the fear of pricking the needle in-process.
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 (12)
1. An injection device capable of automatically advancing and retracting a needle, comprising:
a housing defining a mounting cavity therein;
an injection assembly movably disposed within the mounting cavity between a retracted position and an injection position, wherein a needle of the injection assembly is retracted when the injection assembly is in the retracted position, and wherein at least a portion of the needle extends out of the mounting cavity when the injection assembly is in the injection position;
the first driving assembly is arranged in the mounting cavity and connected with the injection assembly to drive the injection assembly to move.
2. An injection device with automatic needle inlet and outlet according to claim 1, wherein the injection assembly is movable in the axial direction of the needle between the retracted position and the injection position, the first drive assembly comprising:
a first drive shaft extending axially of said needle and movable axially thereof, said first drive shaft being connected to at least a portion of said injection assembly for driving said injection assembly;
the first driving piece is connected with the first driving shaft so as to drive the first driving shaft to move.
3. An injection device with automatic needle feeding and discharging functions according to claim 2, characterized in that the first driving shaft is formed as a screw rod, the injection assembly is provided with a matching piece corresponding to the screw rod, and the screw rod is rotatable around the axis thereof to drive the injection assembly to move along the axial direction thereof.
4. An injection device with automatic needle entry and exit as claimed in claim 3, wherein the first drive member is formed as a first motor connected to the first drive shaft to drive rotation of the first drive shaft.
5. The injection device with automatic needle entry and exit as defined in claim 4, wherein the first drive assembly further comprises:
the first bracket is arranged in the mounting cavity, and the first motor is mounted on the first bracket;
and the first transmission assembly is connected with a motor shaft of the first motor and the first driving shaft respectively so as to link the first motor and the first driving shaft.
6. The injection device with automatic needle entry and exit as defined in claim 5, wherein the first transmission assembly comprises:
the first driving wheel is arranged on a motor shaft of the first motor and rotates synchronously with the motor shaft;
the first driven wheel is sleeved on the first driving shaft and meshed with the first driving wheel, and the radial size of the first driving wheel is larger than that of the first driven wheel.
7. The injection device with automatic needle entry and exit as defined in claim 5, wherein the first drive assembly further comprises:
the first bearing seat is arranged on one side of the injection assembly, and at least one part of the first bearing seat abuts against the injection assembly;
the first bearing is arranged on the first bearing seat, and the other end of the first driving shaft is pivotally connected with the first bearing seat.
8. The injection device with automatic needle access of claim 7, further comprising:
the two second bearing seats are respectively arranged on two opposite sides of the injection assembly and respectively abut against the injection assembly;
the two second bearings are respectively arranged on the corresponding second bearings;
and the transmission rod penetrates through two opposite sides of the injection assembly and is respectively connected with the two bearings.
9. An injection device with automatic needle entry and exit according to claim 4, characterized in that the first motor is formed as a direct current motor.
10. An injection device with automatic needle access according to any of claims 1-9, 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 assembly, 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 assembly after inducing the skin.
11. An injection device with automatic needle entry and exit according to claim 10, characterized in that the sensor is an infrared sensor.
12. The injection device with automatic needle feeding and discharging function as claimed in claim 11, wherein said infrared sensor comprises a plurality of sensing points, and said infrared sensor feeds back information after the skin is sensed at each of said plurality of sensing points.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921639045.8U CN210963390U (en) | 2019-09-29 | 2019-09-29 | Injection device capable of automatically inserting and withdrawing needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921639045.8U CN210963390U (en) | 2019-09-29 | 2019-09-29 | Injection device capable of automatically inserting and withdrawing needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210963390U true CN210963390U (en) | 2020-07-10 |
Family
ID=71442517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921639045.8U Active CN210963390U (en) | 2019-09-29 | 2019-09-29 | Injection device capable of automatically inserting and withdrawing needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210963390U (en) |
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2019
- 2019-09-29 CN CN201921639045.8U patent/CN210963390U/en active Active
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