CN108721735A - A kind of injector assembly having apart from inductive switch - Google Patents

A kind of injector assembly having apart from inductive switch Download PDF

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Publication number
CN108721735A
CN108721735A CN201810878532.3A CN201810878532A CN108721735A CN 108721735 A CN108721735 A CN 108721735A CN 201810878532 A CN201810878532 A CN 201810878532A CN 108721735 A CN108721735 A CN 108721735A
Authority
CN
China
Prior art keywords
assembly
apart
inner screw
inductive switch
screw sheath
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Withdrawn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
CN201810878532.3A
Other languages
Chinese (zh)
Inventor
周友国
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 CN201810878532.3A priority Critical patent/CN108721735A/en
Publication of CN108721735A publication Critical patent/CN108721735A/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Withdrawn legal-status Critical Current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
    • A61M5/31533—Dosing mechanisms, i.e. setting a dose
    • A61M5/31545—Setting modes for dosing
    • A61M5/31548—Mechanically operated dose setting member
    • A61M5/31556—Accuracy improving means
    • 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
    • A61M5/31566—Means improving security or handling thereof
    • A61M5/31573—Accuracy improving means
    • 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
    • A61M5/31583—Constructional features or modes of drive mechanisms for piston rods based on rotational translation, i.e. movement of piston rod is caused by relative rotation between the user activated actuator and the 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
    • A61M5/20—Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically
    • A61M2005/2006—Having specific accessories
    • 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

Abstract

A kind of have an injector assembly apart from inductive switch, including control assembly, injection tube assembly, electric machine assembly, external thread sleeve, inner screw sheath and apart from inductive switch；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 electric machine assembly 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 electric machine assembly；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 electric machine assembly for controlling the rotation angle of the motor, this is set to one end far from the injection tube assembly of the inner screw sheath apart from inductive switch and is located at the inside of inner screw sheath.

Description

A kind of injector assembly having apart from inductive switch
Technical field
The present invention relates to medical instruments fields, and in particular to a kind of injector assembly having apart from inductive switch.
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 injector assembly having apart from inductive switch, has quantitative extraction or injection The advantageous effect of liquid.
There is injector assembly apart from inductive switch the present invention provides a kind of, including control assembly, injection tube assembly, Electric machine assembly, external thread sleeve and inner screw sheath；
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 electric machine assembly；
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 electric machine assembly for controlling the rotation angle of the motor.
Further include a metal screw, the shell in the injector assembly of the present invention for having apart from inductive switch Body is detachably connected by the metal screw and inner screw sheath realization, and first is provided on the outer wall of the external thread sleeve Conductive metal layer is provided with the second conductive metal layer, the internal thread structure of the inner screw sheath on the side wall and tail end of the shell External thread structure for conductive metal, 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 motor One positive input port of component 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 electric machine assembly Negative input port is electrically connected.
In the injector assembly of the present invention for having apart from inductive switch, the end of the electric machine assembly is pushed away with this The end of bar is circumferentially flexibly connected, and axial restraint, the end of the electric machine assembly and the shell are circumferentially fixed.
In the injector assembly of the present invention for having apart from inductive switch, the position for closing on end of electric machine assembly It is provided with accommodating chamber and has the through-hole being connected to the accommodating chamber in the end set, being provided with one in the accommodating chamber rotatably justifies Shape connecting plate, offers an irregularly-shaped hole at the axis of the connecting plate, the end of the push rod pass through the through-hole and on the connecting plate Irregularly-shaped hole cross win be connected.
In the injector assembly of the present invention for having apart from inductive switch, limit is provided on the tail end of the shell The end set of protrusion, the electric machine assembly 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 schematic diagram with the injector assembly apart from inductive switch of the present invention.
Fig. 2 is the annexation figure of push rod and the electric machine assembly.
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 that the structure with the injector assembly apart from inductive switch in one embodiment of the invention is shown It is intended to, it should be including control assembly 60, injection tube assembly 10, electric machine assembly 20, outer with injector assembly apart from inductive switch Thread bush 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 electric machine assembly 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 electric machine assembly Negative input port is electrically connected.
The electric machine assembly 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 electric machine assembly 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, and to drive the push rod 13 to be advanced axially relative or retreat, which is set to For controlling the rotation angle of the electric machine assembly 20 on the electric machine assembly 20, so control the advance of the push rod 13 or retreat away from From.
In the present embodiment, the end of the electric machine assembly 20 is circumferentially flexibly connected with the end of the push rod 13, and axial solid Fixed, the end of the electric machine assembly 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 electric machine assembly 20 in hole.The limit protrusion is plugged in the limit hole.
The position for closing on end of electric machine assembly 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 to further include circuit board, distance perspective with injector assembly apart from inductive switch should open Close the miniature input panel 90 of 80 and input injection volume or extraction amount.Can be distance detection sensing apart from inductive switch 80 Device, such as photoinduction sensor.
This is used to detect the distance between the end of the external thread sleeve and the inner screw sheath, the distance apart from inductive switch 80 Inductive switch is communicated to connect with the control assembly.The circuit board is set on the end of the inner screw sheath, control assembly setting In the inside of the circuit board.The miniature input panel is set to the outside of the circuit board and is communicated to connect with the control assembly.
The present invention realizes the control of the forward or backward distance of the push rod by the control assembly and electric machine assembly, 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 (7)

1. a kind of injector assembly having apart from inductive switch, which is characterized in that including control assembly, injection tube assembly, electricity Thermomechanical components, external thread sleeve, inner screw sheath and apart from inductive switch；The injection tube assembly includes shell, is set in shell Piston and the push rod that is connect with piston, the tail end of the shell be detachably connected with the first end of the inner screw sheath, the motor Component 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 electric machine assembly； The external thread sleeve is connect with the inner screw sheath spiral makes it that can advance or retreat along the axial screw of the inner screw sheath, from And the push rod is driven to be advanced axially relative or retreat, which is set to one end far from the injection tube assembly of inner screw sheath And be electrically connected with the electric machine assembly for controlling the rotation angle of the motor, this is set to the inner screw sheath apart from inductive switch One end far from the injection tube assembly and the inside positioned at inner screw sheath, this is apart from inductive switch for detecting the external thread sleeve The distance between end of the inner screw sheath, this is communicated to connect apart from inductive switch and the control assembly.
2. a kind of injector assembly having apart from inductive switch according to claim 1, it is characterised 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. a kind of injector assembly having apart from inductive switch according to claim 1 or claim 2, feature It is to 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.
4. a kind of injector assembly having apart from inductive switch according to claim 1 or claim 3, feature It is to further include a metal screw, which is detachably connected by the metal screw and inner screw sheath realization, described It is provided with the first conductive metal layer on the outer wall of external thread sleeve, the second conductive gold is provided on the side wall and tail end of the shell Belong to layer, the internal thread structure of the inner screw sheath 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 motor One positive input port of component 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 electric machine assembly Negative input port is electrically connected.
5. a kind of injector assembly having apart from inductive switch according to claim 1 or claim 4, feature It is that the end of the electric machine assembly is circumferentially flexibly connected with the end of the push rod, and axial restraint, the end of the electric machine assembly It is circumferentially fixed with the shell.
6. a kind of injector assembly having apart from inductive switch according to claim 1 or claim 5, feature It is that the position for closing on end of electric machine assembly is provided with accommodating chamber and has the through-hole being connected to the accommodating chamber in the end set, It is provided with a rotatably round connecting plate in the accommodating chamber, an irregularly-shaped hole is offered at the axis of the connecting plate, the push rod End passes through the through-hole and crosses win with the irregularly-shaped hole on the connecting plate and is connected.
7. a kind of injector assembly having apart from inductive switch according to claim 1 or claim 5, feature It is to be provided with limit protrusion on the tail end of the shell, the end set of the electric machine assembly has limiting groove, which inserts It is located in the limiting groove.
CN201810878532.3A 2018-08-03 2018-08-03 A kind of injector assembly having apart from inductive switch Withdrawn CN108721735A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810878532.3A CN108721735A (en) 2018-08-03 2018-08-03 A kind of injector assembly having apart from inductive switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810878532.3A CN108721735A (en) 2018-08-03 2018-08-03 A kind of injector assembly having apart from inductive switch

Publications (1)

Publication Number Publication Date
CN108721735A true CN108721735A (en) 2018-11-02

Family

ID=63942347

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810878532.3A Withdrawn CN108721735A (en) 2018-08-03 2018-08-03 A kind of injector assembly having apart from inductive switch

Country Status (1)

Country Link
CN (1) CN108721735A (en)

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Application publication date: 20181102