CN108815638B - Button type injection device convenient for single hand use - Google Patents

Button type injection device convenient for single hand use Download PDF

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Publication number
CN108815638B
CN108815638B CN201810305144.6A CN201810305144A CN108815638B CN 108815638 B CN108815638 B CN 108815638B CN 201810305144 A CN201810305144 A CN 201810305144A CN 108815638 B CN108815638 B CN 108815638B
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China
Prior art keywords
button
telescopic
link mechanism
needle cylinder
end part
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CN201810305144.6A
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Chinese (zh)
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CN108815638A (en
Inventor
王璟
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Eye and ENT Hospital of Fudan University
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Eye and ENT Hospital of Fudan University
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Priority to CN201810305144.6A priority Critical patent/CN108815638B/en
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    • 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
    • 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
    • A61M5/31511—Piston or piston-rod constructions, e.g. connection of piston with piston-rod
    • A61M2005/3152—Piston or piston-rod constructions, e.g. connection of piston with piston-rod including gearings to multiply or attenuate the piston displacing force

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  • Health & Medical Sciences (AREA)
  • Vascular Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

The application relates to a button type injection device convenient for one hand use, which comprises a needle cylinder and a telescopic transmission core rod, wherein the telescopic transmission core rod comprises a piston and a telescopic transmission mechanism, the telescopic transmission mechanism comprises a multi-link mechanism and a button, one end of the multi-link mechanism is connected with the piston, and the other end is connected with the button; the telescopic transmission core rod is arranged on the needle cylinder, the push button drives the multi-link mechanism to realize telescopic motion in the transverse direction through linear motion in the longitudinal direction, and then drives the piston at the other end of the multi-link mechanism to realize drawing-out or pushing-in motion in the needle cylinder. The button type injection device convenient for one-hand use is not only suitable for one-hand operation under an endoscope, but also is simpler to operate and more stable for any technical operation needing a needle tube because the hand position of needle insertion, pushing injection or suction is not required to be changed, thereby improving the safety.

Description

Button type injection device convenient for single hand use
Technical Field
The application belongs to the technical field of syringes, and relates to a button type injection device convenient to use by one hand.
Background
Needle injection and aspiration are common clinical technical operations, and are daily diagnosis and treatment activities which are required every day. The operation is closely related to each department of clinic, and is the most basic skill that doctors and nurses must master. However, in the prior art, the piston is arranged at the needle tail, and when the suction is performed, the piston is operated by two hands, one hand holds the syringe barrel, and the other hand holds the piston rod to perform injection or liquid suction.
With the development of medical technology, higher requirements are put on the safety and the noninvasive performance of various operations; even if invasive, it is necessary to minimize trauma. Accordingly, various endoscope techniques have been developed. The endoscope has a clearer view in various operations, and can also see difficult-to-peep anatomical dead angles, so that the safety of various technical operations is greatly improved. However, the endoscope needs to be stably held by one hand, and various original techniques of two-hand operation are required to be changed into one-hand operation. For example, the common tympanic injection technology for treating sudden deafness, dizziness, secretory otitis media and the like in otorhinolaryngology can not only clearly see the shape of tympanic membrane, but also accurately select the fine structure of the injection part to prevent damage to the middle ear and the inner ear, and can also see the dosage and effect of the drug injected into the tympanic membrane. However, after one hand holds the ear endoscope, the needle tube puncture injection must be completed by one hand, but the injector in the prior art is extremely unstable under the single-hand operation, and the shaking of the needle head of the needle tube may hurt the external auditory meatus, ossicles and other slim structures in the middle ear cavity, even damage important sounds of the inner ear and other structures for maintaining balance. Meanwhile, operation such as gunpowder injection, abscess puncture and operation cavity flushing under an endoscope all need to use a single hand to operate the needle tube, so that the needle tube capable of being operated by one hand is urgently required to be invented, and medical workers can perform pushing injection and suction operation without changing hand positions after injecting the needle head to a disease part.
Disclosure of Invention
The application aims to solve the technical problem of providing a button type injection device which is convenient for one-hand use aiming at the defects of the prior art. The button type injection device convenient for one-hand use is not only suitable for one-hand operation under an endoscope, but also is simpler to operate and more stable for any technical operation needing a needle tube because the hand position of needle insertion, pushing injection or suction is not required to be changed, thereby improving the safety.
In order to achieve the above purpose, the application adopts the following technical scheme:
the button type injection device convenient for one-hand use comprises a needle cylinder and a telescopic transmission core rod, wherein the telescopic transmission core rod comprises a piston and a telescopic transmission mechanism, the telescopic transmission mechanism comprises a multi-link mechanism and a button, one end of the multi-link mechanism is connected with the piston, and the other end of the multi-link mechanism is connected with the button; the telescopic transmission core rod is arranged on the needle cylinder, the push button drives the multi-link mechanism to realize telescopic motion in the transverse direction through linear motion in the longitudinal direction, and then drives the piston at the other end of the multi-link mechanism to realize drawing-out or pushing-in motion in the needle cylinder.
Further, the whole button is a rod body, and a through hole is formed at the right end of the needle cylinder in a longitudinally penetrating manner; a mounting plate is transversely arranged in the needle cylinder at the left side of the button; the multi-link mechanism is parallel to the mounting plate.
Further, the syringe comprises a front barrel and a rear barrel; the multi-link mechanism is arranged in the front cylinder; the button is arranged in the rear barrel, two mutually parallel mounting plates are arranged in the rear barrel, and the multi-link mechanism is positioned between the two mutually parallel mounting plates.
Further, the multi-link mechanism comprises a telescopic frame body formed by connecting a plurality of telescopic units, and each telescopic unit comprises two cross-shaped connecting sheets.
Further, the multi-link mechanism further comprises a connecting block, the telescopic frame body is connected with the piston through the connecting block, the multi-link mechanism is arranged in the needle cylinder, a sliding plate is further arranged on the side wall of the button, and the sliding plate is also arranged between two mutually parallel mounting plates and parallel to the mounting plates; the end part of one connecting sheet in the telescopic unit at the leftmost end of the telescopic frame body is connected with the connecting block, and the end part of the other connecting sheet is connected with a sliding block arranged in a sliding groove of the connecting block; the end part of one connecting sheet in the telescopic unit at the rightmost end of the telescopic frame body is connected with the button, and the end part of the other connecting sheet is connected with the mounting plate in the needle cylinder; the end of the connecting piece connected with the sliding block is on the same side in the needle cylinder as the end of the connecting piece connected with the button.
Further, each telescopic unit comprises two crossed first connecting sheets and second connecting sheets; the first connecting sheets of each telescopic unit are parallel to each other, and the second connecting sheets of each telescopic unit are parallel to each other; the end part of a first connecting sheet in the telescopic unit at the leftmost end of the telescopic frame body is connected with the connecting block, and the end part of a second connecting sheet is connected with a sliding block arranged in a sliding groove of the connecting block; the end part of a first connecting sheet in the telescopic unit at the rightmost end of the telescopic frame body is connected with the button through the sliding plate, and the end part of a second connecting sheet is connected with the mounting plate in the needle cylinder.
Further, connecting holes are respectively formed at two ends of the connecting piece, a fixing hole is formed in the middle of the connecting piece, and the connecting pieces between the telescopic units are hinged through the connecting holes; the two connecting sheets in each telescopic unit are hinged through a fixing hole.
Further, one end of the side wall of the chute in the connecting block is also provided with a connecting hole corresponding to the connecting sheet, one end of the sliding plate is also provided with a connecting hole corresponding to the connecting sheet, the right end of the mounting plate positioned at the lower part in the two mounting plates which are parallel to each other is also provided with a connecting hole corresponding to the connecting sheet, and the connecting block, the sliding plate and the mounting plate are respectively hinged with the connecting sheet corresponding to the connecting block through the connecting holes.
Further, the connecting section of the connecting block connected with the piston is cone-shaped; and volume calibration marks are arranged on the front cylinder body.
Further, the front cylinder body is provided with volume calibration scale mark energy, and the injection liquid medicine amount is intuitively read.
In the button type injection device convenient for one hand to use, the multi-link mechanism is provided with the transmission ratio, the small-amplitude pressing operation realizes the larger-amplitude piston movement distance, and the convenience of one hand operation and the requirement of injection quantity are considered.
The button in the button type injection device convenient for one hand use is also provided with the needle tube indication mark, so that the pressing direction of the thumb to the button can be marked.
The principle of the application: the button type injection device convenient for one hand use can be used for pressing the button by a thumb to perform linear motion in the longitudinal direction, and the sliding plate pressing the button can drive the multi-link mechanism to perform telescopic motion in the transverse direction in the needle cylinder at the moment, so that the piston at the other end of the multi-link mechanism is driven to realize extraction or pushing motion in the needle cylinder. For example, the button is pressed forward by the thumb to perform linear motion in the longitudinal direction to perform Y-axis motion, and the piston is driven by the multi-link mechanism to move in the X-axis negative direction to inject the liquid medicine; the thumb presses the button reversely, and the piston is driven by the multi-link mechanism to move towards the positive direction of the X axis to suck the liquid medicine. Therefore, the button type injection device convenient for one-hand use is not only suitable for one-hand operation under an endoscope, but also simpler to operate and more stable in needle head as the hand position of needle insertion, pushing or sucking is not required to be changed for any technical operation needing a needle tube, thereby improving the safety.
Advantageous effects
The multi-link mechanism arranged on the button type injection device convenient for one hand use is mainly formed by hinging a plurality of links, utilizes the instability of a parallelogram, realizes telescopic movement, and is simple and convenient and high in flexibility.
In the button type injection device convenient for one hand to use, two sides of the end part of the multi-link mechanism are fixedly connected with one side at the connecting block and the button, and the other side is in sliding connection (namely, the sliding block slides in the connecting block to drive the connecting piece at one side of the end part of the multi-link mechanism to move, and the sliding plate on the button is pressed by fingers to realize longitudinal sliding among mounting plates to drive the connecting piece at the other side of the end part of the multi-link mechanism to move, so that the telescopic movement and the change of the transmission direction of the multi-link mechanism are realized, and the pressing linear movement in the Y-axis direction is changed into the linear movement of the piston in the X-axis direction.
In the button type injection device convenient for one hand use, the purpose of arranging the two mutually parallel mounting plates in the needle cylinder is to fix one side of the end part of the multi-link mechanism, and in addition, the multi-link mechanism has better limiting effect between the two mutually parallel mounting plates, so that the use is safer.
Drawings
FIG. 1 is a top view of a push button injection device of the present application for convenient single-handed use;
FIG. 2 is a front view of the push button injection device of the present application for convenient single hand use;
FIG. 3 is a cross-sectional view of a push button injection apparatus of the present application for convenient single-handed use;
FIG. 4 is a schematic view of the button structure of the button type injection apparatus for facilitating one-hand use of the present application;
FIG. 5 is a schematic view of the structure of the rear barrel of the button-type injection device of the present application for convenient single-handed use;
FIG. 6 is a schematic view of the structure of a connection block of the button-type injection device for facilitating one-hand use of the present application;
FIG. 7 is a schematic view of the structure of the slider of the button-type injection device of the present application for facilitating one-handed use;
FIG. 8 is a schematic view of the structure of the connecting piece of the button-type injection device for facilitating one-hand use of the present application;
FIG. 9 is a schematic view of the connection structure of the button and the multi-link mechanism of the button-type injection device for facilitating one-hand use of the present application;
FIG. 10 is a schematic diagram showing the operation of the telescopic mechanism of the button-type injection apparatus for one-hand use according to the present application when extended;
fig. 11 is a schematic diagram showing the operation structure of the telescopic transmission mechanism of the button-type injection device for one-hand use according to the present application when it is retracted.
The device comprises a front cylinder body 1, a telescopic bracket body 2, a connecting piece 21, a connecting hole 211, a fixing hole 212, a rear cylinder body 3, a mounting plate 31, a button 4, a sliding plate 41, a connecting block 5, a sliding block 51 and a piston 6.
Detailed Description
The application is further described below in conjunction with the detailed description. It is to be understood that these examples are illustrative of the present application and are not intended to limit the scope of the present application. Furthermore, it should be understood that various changes and modifications can be made by one skilled in the art after reading the teachings of the present application, and such equivalents are intended to fall within the scope of the application as defined in the appended claims.
Example 1
As shown in figures 1-11, the button type injection device convenient for one hand use is provided with a needle cylinder and a telescopic transmission core rod, wherein the telescopic transmission core rod comprises a piston 6 and a telescopic transmission mechanism, the telescopic transmission mechanism comprises a multi-link mechanism and a button 4, one end of the multi-link mechanism is connected with the piston 6, and the other end is connected with the button 4; the telescopic transmission core rod is arranged on the needle cylinder, the button 4 drives the multi-link mechanism to realize telescopic motion in the transverse direction through linear motion in the longitudinal direction, and then drives the piston 6 at the other end of the multi-link mechanism to realize drawing or pushing motion in the needle cylinder.
The whole button is a rod body which longitudinally penetrates through the right end of the needle cylinder and is provided with a through hole; a mounting plate is transversely arranged in the needle cylinder at the left side of the button; the multi-link mechanism is parallel to the mounting plate.
The needle cylinder comprises a front cylinder body 1 and a rear cylinder body 3; the connecting block 5 and the telescopic frame body 2 are both arranged in the front cylinder body 1; the button 4 is arranged in the rear cylinder body 3, two mutually parallel mounting plates 31 are arranged in the rear cylinder body 3, the multi-link mechanism is positioned between the two mutually parallel mounting plates 31, a sliding plate 41 is further arranged on the side wall of the button 4, and the sliding plate 41 is also positioned between the two mutually parallel mounting plates 31 and is parallel to the mounting plates 31. In the button-type injection device convenient for one hand use of the present application, two parallel mounting plates 31 are provided in the syringe, and the purpose is to fix one side of the end of the multi-link mechanism, and in addition, to make the multi-link mechanism have a better limiting effect between the two parallel mounting plates, so that the use is safer.
The multi-link mechanism comprises a telescopic frame body 2 formed by connecting a plurality of telescopic units, wherein each telescopic unit comprises two cross-shaped connecting sheets 21. The telescopic frame body 2 of the button type injection device convenient for one hand use is mainly formed by hinging a plurality of connecting sheets (connecting rods), utilizes the instability of a parallelogram, realizes telescopic movement, and is simple and convenient and high in flexibility.
The multi-link mechanism also comprises a connecting block 5, the telescopic frame body 2 is connected with the piston 6 through the connecting block 5, and the multi-link mechanism is also arranged in the needle cylinder; a sliding block arranged in a sliding groove of the connecting block 5 is arranged in the connecting block 5; the end part of one connecting sheet 21 in the telescopic unit at the leftmost end of the telescopic frame body 2 is connected with the connecting block 5, and the end part of the other connecting sheet 21 is connected with a sliding block 51 arranged in a sliding groove of the connecting block 5; the end part of one connecting sheet 21 in the right-most telescopic unit of the telescopic frame body 2 is connected with the button 4, and the end part of the other connecting sheet 21 is connected with a mounting plate in the needle cylinder; the end of the connecting piece 21 connected to the slider 51 is on the same side in the cylinder as the end of the connecting piece 21 connected to the push button 4. In the button type injection device convenient for one hand to use, two sides of the end part of the telescopic frame body 2 are fixedly connected on one side at the connecting block 5 and the button 4, and the other side is in sliding connection (namely, the sliding block 51 slides in the connecting block 5 to drive the connecting sheet 21 on one side of the end part of the telescopic frame body 2 to move, and the sliding plate 41 on the button 4 is pressed by fingers to realize longitudinal sliding between the mounting plates 31 to drive the connecting sheet 21 on the other side of the end part of the telescopic frame body 2 to move, so that the telescopic movement and the change of the transmission direction of the telescopic frame body 2 are realized, and the pressing linear movement in the Y-axis direction is changed into the linear movement of the piston 6 in the X-axis direction.
Each telescopic unit comprises two crossed first connecting sheets and second connecting sheets; the first connecting sheets of each telescopic unit are parallel to each other, and the second connecting sheets of each telescopic unit are parallel to each other; the end part of a first connecting sheet in the telescopic unit at the leftmost end of the telescopic frame body 2 is connected with the connecting block 5, and the end part of a second connecting sheet is connected with a sliding block 51 arranged in a sliding groove of the connecting block 5; the end of the first connecting piece in the telescopic unit at the rightmost end of the telescopic frame body 2 is connected with the button 4 through the sliding plate 41, and the end of the second connecting piece is connected with the mounting plate 31 in the needle cylinder.
The two ends of the connecting piece 21 are respectively provided with a connecting hole 211, the middle is provided with a fixing hole 212, and the connecting piece 21 between the telescopic units is hinged through the connecting holes 211; the two connecting sheets in each telescopic unit are hinged through a fixing hole.
The connecting hole corresponding to the connecting piece is also arranged at one end of the side wall of the sliding groove in the connecting block 5, the connecting hole corresponding to the connecting piece is also arranged at one end of the sliding block 51, the connecting hole corresponding to the connecting piece is also arranged at one end of the sliding plate 41, the connecting holes corresponding to the connecting piece are also arranged at the right end of the mounting plate 31 positioned at the lower part of the two mounting plates 31 which are parallel to each other, and the connecting block 5, the sliding block 51, the sliding plate 41 and the mounting plate 31 are respectively hinged with the connecting piece 21 corresponding to the connecting piece through the connecting holes.
The connecting section of the connecting block 5 and the piston 6 is conical.
The front cylinder body 1 is provided with volume calibration scale mark energy for intuitively reading the injection liquid medicine amount. In the button type injection device convenient for one hand to use, the multi-link mechanism is provided with the transmission ratio, the small-amplitude pressing operation realizes the larger-amplitude movement distance of the piston 6, and the convenience of one hand operation and the requirement of injection quantity are considered.
The button in the button type injection device convenient for one hand use is also provided with the needle tube indication mark, so that the pressing direction of the thumb to the button can be marked.
The principle of the application: the button type injection device convenient for one hand use can be used for pressing the button 4 by a thumb to perform linear motion in the longitudinal direction, and the sliding plate 41 pressing the button 4 can drive the multi-link mechanism to perform telescopic motion in the transverse direction in the syringe at the moment, so that the piston 6 at the other end of the multi-link mechanism is driven to realize drawing-out or pushing-in motion in the syringe. For example, the button 4 is pressed forward by the thumb to perform linear motion in the longitudinal direction to perform Y-axis motion, and the piston 6 is driven by the multi-link mechanism to move in the X-axis negative direction to inject the liquid medicine; the thumb presses the button 4 reversely, and the piston 6 is driven by the multi-link mechanism to move towards the positive direction of the X axis to suck the liquid medicine. Therefore, the button type injection device convenient for one-hand use is not only suitable for one-hand operation under an endoscope, but also simpler to operate and more stable in needle head as the hand position of needle insertion, pushing or sucking is not required to be changed for any technical operation needing a needle tube, thereby improving the safety.

Claims (2)

1. A button type injection device convenient for one hand use is characterized in that: the button type injection device convenient for one hand use comprises a needle cylinder and a telescopic transmission core rod, wherein the telescopic transmission core rod comprises a piston and a telescopic transmission mechanism, the telescopic transmission mechanism comprises a multi-link mechanism and a button, one end of the multi-link mechanism is connected with the piston, and the other end of the multi-link mechanism is connected with the button; the telescopic transmission core rod is arranged on the needle cylinder, the push button drives the multi-link mechanism to realize telescopic motion in the transverse direction through linear motion in the longitudinal direction, and then drives the piston at the other end of the multi-link mechanism to realize extraction or pushing motion in the needle cylinder;
the whole button is a rod body, and a through hole is formed at the right end of the needle cylinder in a longitudinally penetrating manner; a mounting plate is transversely arranged in the needle cylinder at the left side of the button; the multi-link mechanism is parallel to the mounting plate;
the needle cylinder comprises a front cylinder body and a rear cylinder body; the multi-link mechanism is arranged in the front cylinder; the button is arranged in the rear cylinder body, two mutually parallel mounting plates are arranged in the rear cylinder body, and the multi-link mechanism is positioned between the two mutually parallel mounting plates;
the multi-link mechanism comprises a telescopic frame body formed by connecting a plurality of telescopic units, wherein each telescopic unit comprises two cross-shaped connecting sheets;
the multi-link mechanism further comprises a connecting block, the telescopic frame body is connected with the piston through the connecting block, the multi-link mechanism is arranged in the needle cylinder, a sliding plate is further arranged on the side wall of the button, and the sliding plate is also arranged between two mutually parallel mounting plates and parallel to the mounting plates; the end part of one connecting sheet in the telescopic unit at the leftmost end of the telescopic frame body is connected with the connecting block, and the end part of the other connecting sheet is connected with a sliding block arranged in a sliding groove of the connecting block; the end part of one connecting sheet in the telescopic unit at the rightmost end of the telescopic frame body is connected with the button, and the end part of the other connecting sheet is connected with the mounting plate in the needle cylinder; the end part of the connecting sheet connected with the sliding block is positioned on the same side in the needle cylinder as the end part of the connecting sheet connected with the button;
each telescopic unit comprises two crossed first connecting sheets and second connecting sheets; the first connecting sheets of each telescopic unit are parallel to each other, and the second connecting sheets of each telescopic unit are parallel to each other; the end part of a first connecting sheet in the telescopic unit at the leftmost end of the telescopic frame body is connected with the connecting block, and the end part of a second connecting sheet is connected with a sliding block arranged in a sliding groove of the connecting block; the end part of a first connecting sheet in the telescopic unit at the rightmost end of the telescopic frame body is connected with the button through a sliding plate, and the end part of a second connecting sheet is connected with a mounting plate in the needle cylinder;
the two ends of the connecting piece are respectively provided with a connecting hole, the middle of the connecting piece is provided with a fixing hole, and the connecting pieces between the telescopic units are hinged through the connecting holes; the two connecting sheets in each telescopic unit are hinged through a fixing hole;
the connecting piece is characterized in that one end of the side wall of the connecting block inner chute is also provided with a connecting hole corresponding to the connecting piece, one end of the sliding block is also provided with a connecting hole corresponding to the connecting piece, one end of the sliding plate is also provided with a connecting hole corresponding to the connecting piece, the right end of the mounting plate positioned at the lower part in the two mounting plates which are parallel to each other is also provided with a connecting hole corresponding to the connecting piece, and the connecting piece, the sliding block, the sliding plate and the mounting plate are respectively hinged with the connecting piece corresponding to the connecting piece through the connecting holes.
2. A push button injection device for convenient single hand use according to claim 1, wherein: the connecting section of the connecting block connected with the piston is conical; and volume calibration marks are arranged on the front cylinder body.
CN201810305144.6A 2018-04-08 2018-04-08 Button type injection device convenient for single hand use Active CN108815638B (en)

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Application Number Priority Date Filing Date Title
CN201810305144.6A CN108815638B (en) 2018-04-08 2018-04-08 Button type injection device convenient for single hand use

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Application Number Priority Date Filing Date Title
CN201810305144.6A CN108815638B (en) 2018-04-08 2018-04-08 Button type injection device convenient for single hand use

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CN108815638B true CN108815638B (en) 2023-09-26

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Publication number Priority date Publication date Assignee Title
CN202459637U (en) * 2012-03-13 2012-10-03 成都恒瑞制药有限公司 Electric syringe
CN203815197U (en) * 2014-03-14 2014-09-10 九阳股份有限公司 Miniaturized whole-fruit juicer
CN104258553A (en) * 2014-10-29 2015-01-07 王涛 Straight punch simulating device
CN205031301U (en) * 2015-10-10 2016-02-17 李建军 Peritoneoscope minimal access surgery sample sampler
CN205272608U (en) * 2015-12-08 2016-06-01 南京百川行远激光科技有限公司 Flexible push -down advancing mechanism of 3D print pen ink
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CN206424152U (en) * 2016-09-05 2017-08-22 北京积水潭医院 Endoscopy support under a kind of intravenous anesthesia
CN107243090A (en) * 2017-06-23 2017-10-13 刘津 Earwax flusher
CN209378196U (en) * 2018-04-08 2019-09-13 复旦大学附属眼耳鼻喉科医院 It is a kind of to facilitate the singlehanded push button syringe used

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