CN108744160A - Medication injections device assembly with optical distance sensor - Google Patents

Medication injections device assembly with optical distance sensor Download PDF

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Publication number
CN108744160A
CN108744160A CN201810823465.5A CN201810823465A CN108744160A CN 108744160 A CN108744160 A CN 108744160A CN 201810823465 A CN201810823465 A CN 201810823465A CN 108744160 A CN108744160 A CN 108744160A
Authority
CN
China
Prior art keywords
inner screw
stepper motor
screw sheath
distance sensor
shell
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN201810823465.5A
Other languages
Chinese (zh)
Inventor
任雪梅
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN201810823465.5A priority Critical patent/CN108744160A/en
Publication of CN108744160A publication Critical patent/CN108744160A/en
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/20—Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
    • A61M5/31511—Piston or piston-rod constructions, e.g. connection of piston with piston-rod
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
    • A61M5/31525—Dosing
    • A61M5/31528—Dosing by means of rotational movements, e.g. screw-thread mechanisms
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
    • A61M5/31533—Dosing mechanisms, i.e. setting a dose
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
    • A61M5/31533—Dosing mechanisms, i.e. setting a dose
    • A61M5/31545—Setting modes for dosing
    • A61M5/31546—Electrically operated dose setting, e.g. input via touch screen or plus/minus buttons
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
    • A61M5/31565—Administration mechanisms, i.e. constructional features, modes of administering a dose
    • A61M5/31576—Constructional features or modes of drive mechanisms for piston rods
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/20—Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically
    • A61M2005/2026—Semi-automatic, e.g. user activated piston is assisted by additional source of energy
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
    • A61M5/31565—Administration mechanisms, i.e. constructional features, modes of administering a dose
    • A61M5/31576—Constructional features or modes of drive mechanisms for piston rods
    • A61M2005/31588—Constructional features or modes of drive mechanisms for piston rods electrically driven
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/33—Controlling, regulating or measuring
    • A61M2205/3306—Optical measuring means

Abstract

The present invention provides a kind of medication injections device assembly with optical distance sensor, including control assembly, injection tube assembly, stepper motor, external thread sleeve, inner screw sheath and optical distance sensor；The injection tube assembly includes shell, the piston being set in shell and the push rod being connect with piston, the tail end of the shell is detachably connected with the first end of the inner screw sheath, the stepper motor is set to the tail end of the shell and is connect with the end of the push rod, which connect with the shaft of the stepper motor；The external thread sleeve is connect with the inner screw sheath spiral so that it can advance or retreat along the axial screw of the inner screw sheath, to drive the push rod to be advanced axially relative or retreat, the control assembly is set to one end far from the injection tube assembly of inner screw sheath and is electrically connected with the stepper motor for controlling the rotation angle of the motor, which is set to one end far from the injection tube assembly of the inner screw sheath and the inside positioned at inner screw sheath.

Description

Medication injections device assembly with optical distance sensor
Technical field
The present invention relates to medical instruments fields, and in particular to a kind of medical syringe group with optical distance sensor Part.
Background technology
In the prior art, using syringe when carrying out Liquid extracting or injection, operating personnel are often by eye Observation injection volume or extraction amount are gone, and hand, when operating its push rod, the advance of the push rod or backway also can not essences Really control.
Therefore, the prior art is defective, needs to improve.
Invention content
The embodiment of the present invention provides a kind of medication injections device assembly with optical distance sensor, have it is quantitative extract or The advantageous effect of person's injecting fluid.
The present invention provides a kind of medication injections device assemblies with optical distance sensor, which is characterized in that including control Component, injection tube assembly, stepper motor, external thread sleeve, inner screw sheath and optical distance sensor processed；
The injection tube assembly includes shell, the piston being set in shell and the push rod being connect with piston, the shell The first end of tail end and the inner screw sheath be detachably connected, the stepper motor be set to the tail end of the shell and with the push rod End connects, which connect with the shaft of the stepper motor；
The external thread sleeve connect with the inner screw sheath spiral so that its can along the axial screw of the inner screw sheath advance or Person retreats, and to drive the push rod to be advanced axially relative or retreat, which is set to separate injection-tube of inner screw sheath It one end of component and is electrically connected with the stepper motor for controlling the rotation angle of the motor, optical distance sensor setting In one end far from the injection tube assembly of the inner screw sheath and positioned at the inside of inner screw sheath, which is used for Detect the distance between the end of the external thread sleeve and the inner screw sheath, the optical distance sensor and the control assembly communication link It connects；
Further include a miniature input panel for inputting injection volume or extraction amount, which is set to this The outside of circuit board is simultaneously communicated to connect with the control assembly；
The injection volume or extraction gauge that the control assembly is used to be inputted according to the miniature input panel calculate the push rod need Then the distance either retreated of advancing calculates the rotation angle of the stepper motor according to the distance of the advance or retrogressing Value, and control the stepper motor and rotate corresponding angle towards corresponding direction.
Further include one metal threaded in the medication injections device assembly of the present invention with optical distance sensor Part, the shell are detachably connected by the metal screw and inner screw sheath realization, are set on the outer wall of the external thread sleeve Be equipped with the first conductive metal layer, be provided with the second conductive metal layer on the side wall and tail end of the shell, the inner screw sheath it is interior Helicitic texture is conductive metal, and the external thread structure of the external thread sleeve is conductive metal；
One positive output port of the control assembly passes sequentially through first conductive metal layer, the second conductive metal layer and is somebody's turn to do One positive input port of stepper motor is electrically connected；
One negative output port of the control assembly passes sequentially through the internal thread structure, external thread structure and the stepper motor A negative input port electrical connection.
In the medication injections device assembly of the present invention with optical distance sensor, the end of the stepper motor It is circumferentially flexibly connected with the end of the push rod, and axial restraint, the end of the stepper motor and the shell are circumferentially fixed.
In the medication injections device assembly of the present invention with optical distance sensor, stepper motor closes on end Position be provided with accommodating chamber and have the through-hole being connected to the accommodating chamber in the end set, one is provided in the accommodating chamber to revolve Turn the round connecting plate in ground, offer an irregularly-shaped hole at the axis of the connecting plate, the end of the push rod pass through the through-hole and with the company Irregularly-shaped hole on fishplate bar crosses win and is connected.
In the medication injections device assembly of the present invention with optical distance sensor, it is arranged on the tail end of the shell There is limit protrusion, the end set of the stepper motor has limiting groove, which is plugged in the limiting groove.
The present invention by control assembly controls the rotational angle of motor and advances to the push rod or backway to realize It accurately controls, quantitative extraction or injecting fluid may be implemented.
Description of the drawings
Fig. 1 is a kind of structural representation of the medication injections device assembly with optical distance sensor in the embodiment of the present invention Figure.
Fig. 2 is the annexation figure of push rod and the stepper motor.
Specific implementation mode
Embodiments of the present invention are described below in detail, the example of the embodiment is shown in the accompanying drawings, wherein from beginning Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng The embodiment for examining attached drawing description is exemplary, and is only used for explaining the present invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that, term "center", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", " up time The orientation or positional relationship of the instructions such as needle ", " counterclockwise " is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of The description present invention and simplified description, do not indicate or imply the indicated device or element must have a particular orientation, with spy Fixed azimuth configuration and operation, therefore be not considered as limiting the invention.In addition, term " first ", " second " are only used for Purpose is described, relative importance is not understood to indicate or imply or implicitly indicates the quantity of indicated technical characteristic. " first " is defined as a result, the feature of " second " can explicitly or implicitly include one or more feature.? In description of the invention, the meaning of " plurality " is two or more, unless otherwise specifically defined.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can Can also be to be electrically connected or can mutually communicate to be mechanical connection；It can be directly connected, it can also be by between intermediary It connects connected, can be the interaction relationship of the connection or two elements inside two elements.For the ordinary skill of this field For personnel, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
In the present invention unless specifically defined or limited otherwise, fisrt feature the "upper" of second feature or "lower" It may include that the first and second features are in direct contact, can also not be to be in direct contact but pass through it including the first and second features Between other characterisation contact.Moreover, fisrt feature second feature " on ", " top " and " above " include first special Sign is right over second feature and oblique upper, or is merely representative of fisrt feature level height and is higher than second feature.Fisrt feature exists Second feature " under ", " lower section " and " following " include fisrt feature immediately below second feature and obliquely downward, or be merely representative of Fisrt feature level height is less than second feature.
Following disclosure provides many different embodiments or example is used for realizing the different structure of the present invention.In order to Simplify disclosure of the invention, hereinafter the component of specific examples and setting are described.Certainly, they are merely examples, and And it is not intended to limit the present invention.In addition, the present invention can in different examples repeat reference numerals and/or reference letter, This repetition is for purposes of simplicity and clarity, itself not indicate between discussed various embodiments and/or setting Relationship.In addition, the present invention provides various specific techniques and material example, but those of ordinary skill in the art can be with Recognize the application of other techniques and/or the use of other materials.
Fig. 1 is please referred to, Fig. 1 is the medication injections device assembly with optical distance sensor in one embodiment of the invention Structural schematic diagram, should with optical distance sensor medication injections device assembly, including control assembly 60, injection tube assembly 10, Stepper motor 20, external thread sleeve 30 and inner screw sheath 40.
Wherein, which includes shell 11, the piston 12 being set in shell 11, is pushed away with what piston 12 was connect Bar 13, be set to the shell 11 head end syringe needle 14.The tail end of the shell 11 and the first end of the inner screw sheath 40 are detachable Connection, such as can disassemble and use and snap connection, or in the present embodiment, the first end of the tail end of the shell 11 and the inner screw sheath 40 It is detachably connected by the metal screw 50 realization.
The shell is detachably connected by the metal screw and inner screw sheath realization, the outer wall of the external thread sleeve On be provided with the first conductive metal layer, be provided with the second conductive metal layer on the side wall and tail end of the shell, the inner screw sheath Internal thread structure be conductive metal, the external thread structure of the external thread sleeve is conductive metal；One of the control assembly is just defeated Exit port passes sequentially through first conductive metal layer, a positive input port of the second conductive metal layer and the stepper motor is electrically connected It connects；One negative output port of the control assembly passes sequentially through the internal thread structure, external thread structure and the one of the stepper motor Negative input port is electrically connected.
The stepper motor 20 is set to the tail end of the shell 11 and is connect with the end of the push rod 13, the external thread sleeve 30 with The shaft of the stepper motor 20 connects；The external thread sleeve 30 is connect with 40 spiral of inner screw sheath so that it can be along the internal thread The axial screw of set 40 is advanced or is retreated, to drive the push rod 13 to be advanced axially relative or retreat.
In the present embodiment, the end of the stepper motor 20 is circumferentially flexibly connected with the end of the push rod 13, and axial solid Fixed, the end of the stepper motor 20 and the shell 11 are circumferentially fixed.For example, limit can be arranged on the end cap of the shell 11 Accordingly limit protrusion is arranged on the end of the stepper motor 20 in hole.The limit protrusion is plugged in the limit hole.
The position for closing on end of stepper motor 20 is provided with accommodating chamber 21 and has and the accommodating chamber 21 in the end set The through-hole of connection is provided with a rotatably round connecting plate 22 in the accommodating chamber 21, one is offered at the axis of the connecting plate Irregularly-shaped hole, the end of the push rod 13, which passes through the through-hole and crosses win with the irregularly-shaped hole on the connecting plate 22, to be connected.And the connection The diameter of plate 22 is more than the diameter of the through-hole.
The control assembly 60 includes control circuit and power supply, which can be battery.
In some embodiments, should further include circuit board, optics with the medication injections device assembly of optical distance sensor The miniature input panel 90 of range sensor 80 and input injection volume or extraction amount.Optical distance sensor 80 can be away from From detection sensor, such as photoinduction sensor.
The injection volume or extraction gauge that the control assembly is used to be inputted according to the miniature input panel calculate the push rod need Then the distance either retreated of advancing calculates the rotation angle of the stepper motor according to the distance of the advance or retrogressing Value, and control the stepper motor and rotate corresponding angle towards corresponding direction.
The optical distance sensor 80 is used to detect the distance between the end of the external thread sleeve and the inner screw sheath, the light Range sensor is learned to communicate to connect with the control assembly.The circuit board is set on the end of the inner screw sheath, the control assembly It is set to the inside of the circuit board.The miniature input panel be set to the outside of the circuit board and with the control assembly communication link It connects.
The present invention realizes the control of the forward or backward distance of the push rod by the control assembly and stepper motor, from And quantitative extraction liquid or calibrated shot liquid may be implemented.
In the description of this specification, reference term " embodiment ", " certain embodiments ", " schematically implementation What the description of mode ", " example ", " specific example " or " some examples " etc. meant to describe in conjunction with the embodiment or example Particular features, structures, materials, or characteristics are contained at least one embodiment or example of the present invention.In this specification In, schematic expression of the above terms are not necessarily referring to identical embodiment or example.Moreover, the specific spy of description Sign, structure, material or feature can be combined in any suitable manner in any one or more embodiments or example.
In conclusion although the present invention is disclosed above with preferred embodiment, above preferred embodiment is not to limit The system present invention, those skilled in the art can make various changes and profit without departing from the spirit and scope of the present invention Decorations, therefore protection scope of the present invention is subject to the range that claim defines.

Claims (6)

1. a kind of medication injections device assembly with optical distance sensor, which is characterized in that including control assembly, injection-tube group Part, stepper motor, external thread sleeve, inner screw sheath and optical distance sensor；
The injection tube assembly includes shell, the piston being set in shell and the push rod being connect with piston, the tail of the shell The first end with the inner screw sheath is held to be detachably connected, which is set to the tail end of the shell and the end with the push rod Connection, the external thread sleeve are connect with the shaft of the stepper motor；
The external thread sleeve connect with the inner screw sheath spiral so that its can along the axial screw of the inner screw sheath advance or after It moves back, to drive the push rod to be advanced axially relative or retreat, which is set to separate injection tube assembly of inner screw sheath One end and be electrically connected with the stepper motor for controlling the rotation angle of the motor, which is set to this One end far from the injection tube assembly and the inside positioned at inner screw sheath of inner screw sheath, the optical distance sensor is for detecting The distance between the end of the external thread sleeve and the inner screw sheath, the optical distance sensor are communicated to connect with the control assembly；
Further include a miniature input panel for inputting injection volume or extraction amount, which is set to the circuit The outside of plate is simultaneously communicated to connect with the control assembly；
Before the injection volume or extraction gauge that the control assembly is used to be inputted according to the miniature input panel calculate push rod needs The rotation angle value of the stepper motor is then calculated according to the distance of the advance or retrogressing into the distance either retreated, and It controls the stepper motor and rotates corresponding angle towards corresponding direction.
2. the medication injections device assembly according to claim 1 with optical distance sensor, which is characterized in that further include One circuit board, the circuit board are set on the end of the inner screw sheath, which is set to the inside of the circuit board.
3. the medication injections device assembly according to claim 2 with optical distance sensor, which is characterized in that further include One metal screw, the shell are detachably connected by the metal screw and inner screw sheath realization, the external thread sleeve Outer wall on be provided with the first conductive metal layer, be provided with the second conductive metal layer on the side wall and tail end of the shell, this is interior The internal thread structure of thread bush is conductive metal, and the external thread structure of the external thread sleeve is conductive metal；
One positive output port of the control assembly passes sequentially through first conductive metal layer, the second conductive metal layer and the stepping One positive input port of motor is electrically connected；
One negative output port of the control assembly passes sequentially through the internal thread structure, external thread structure and the one of the stepper motor Negative input port is electrically connected.
4. the medication injections device assembly according to claim 3 with optical distance sensor, which is characterized in that the step The end of stepper motor is circumferentially flexibly connected with the end of the push rod, and axial restraint, the end of the stepper motor and shell week To fixation.
5. the medication injections device assembly according to claim 4 with optical distance sensor, which is characterized in that stepping electricity The position for closing on end of machine is provided with accommodating chamber and has the through-hole being connected to the accommodating chamber in the end set, in the accommodating chamber It is provided with a rotatably round connecting plate, offers an irregularly-shaped hole at the axis of the connecting plate, the end of the push rod passes through should Through-hole simultaneously crosses win mating connection with the irregularly-shaped hole on the connecting plate.
6. the medication injections device assembly according to claim 5 with optical distance sensor, which is characterized in that the shell Tail end on be provided with limit protrusion, the end set of the stepper motor has limiting groove, which is plugged in the limit In groove.
CN201810823465.5A 2018-07-25 2018-07-25 Medication injections device assembly with optical distance sensor Withdrawn CN108744160A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810823465.5A CN108744160A (en) 2018-07-25 2018-07-25 Medication injections device assembly with optical distance sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810823465.5A CN108744160A (en) 2018-07-25 2018-07-25 Medication injections device assembly with optical distance sensor

Publications (1)

Publication Number Publication Date
CN108744160A true CN108744160A (en) 2018-11-06

Family

ID=63971109

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810823465.5A Withdrawn CN108744160A (en) 2018-07-25 2018-07-25 Medication injections device assembly with optical distance sensor

Country Status (1)

Country Link
CN (1) CN108744160A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112516414A (en) * 2019-09-19 2021-03-19 群康生技股份有限公司 Common injection device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112516414A (en) * 2019-09-19 2021-03-19 群康生技股份有限公司 Common injection device

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Application publication date: 20181106