CN107126601B - Detection device for fixing high-pressure injector needle cylinder in place - Google Patents
Detection device for fixing high-pressure injector needle cylinder in place Download PDFInfo
- Publication number
- CN107126601B CN107126601B CN201710406652.9A CN201710406652A CN107126601B CN 107126601 B CN107126601 B CN 107126601B CN 201710406652 A CN201710406652 A CN 201710406652A CN 107126601 B CN107126601 B CN 107126601B
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- CN
- China
- Prior art keywords
- microswitch
- friction piece
- flange body
- flange
- syringe
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Classifications
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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
- A61M5/31—Details
- A61M5/3129—Syringe barrels
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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
- A61M2209/00—Ancillary equipment
- A61M2209/02—Equipment for testing the apparatus
Abstract
The invention discloses a detection device for fixing a high-pressure injector needle cylinder in place, which comprises: the syringe comprises a flange body, a microswitch and a friction piece, wherein the flange body is matched with the syringe in a rotating mode, the microswitch is arranged on the flange body, the friction piece is arranged above the microswitch and is in at least partial contact with the flange body, and the tail end of the syringe is provided with a flange which is abutted against the friction piece to be in contact with the friction piece and an elastic plunger piece which is arranged on the flange, extends along the axial direction of the syringe and can trigger the microswitch to act. The invention adopts physical switch detection instead of signal detection, and has better stability, more reliable detection and low failure rate.
Description
Technical Field
The invention relates to a detection device for fixing a high-pressure injector needle cylinder in place.
Background
High pressure syringes are one of the devices often used in medical equipment for injecting liquids such as contrast media, saline, and the like into the body to enhance the effectiveness of medical imaging such as X-ray or electromagnetic imaging. Generally, a high-pressure injector requires simple, convenient, efficient and safe operation, however, when a needle cylinder of the existing high-pressure injector rotates to a position and is separated from the position, a signal is detected by a sensor, and the signal cannot be detected when the needle cylinder rotates but does not rotate completely to the position, so that the condition detection device of the needle cylinder is provided with a blind area, the use is influenced, and the reliability is low.
Disclosure of Invention
In view of this, the present invention provides a detection device for fixing a syringe of a high-pressure injector in place, which has no blind area in detecting the state of the syringe, is convenient to use, and ensures the reliability of detection signals of the syringe.
The invention provides the following technical scheme according to the purpose of the invention: a detection device for securing a high pressure syringe barrel in place, comprising: the flange body with the rotatory complex of cylinder knob, set up micro-gap switch on the flange body and set up in the micro-gap switch top and with the at least partial friction member that contacts of flange body, wherein the cylinder end has and leans on the flange of contact with friction member to and set up on the flange and along cylinder axial direction extension and can trigger the elasticity plunger spare of micro-gap switch action.
The technical scheme further comprises the following auxiliary technical scheme on the basis of the technical scheme:
the flange body is a ring-shaped piece and comprises a central hole, a convex rib and a positioning column, wherein the convex rib is formed by protruding the inner side of the ring-shaped piece towards the center of the central hole, and the positioning column is arranged on the convex rib and is fixedly positioned with the friction piece.
The convex rib forms a step in the axial direction.
The friction piece and the convex rib are arc sections and matched in shape.
The friction piece is provided with a through hole for accommodating the actuating end of the microswitch, and the plane of the through hole is higher than the actuating end of the microswitch.
The friction piece is 2 and relative 180 degrees settings, and protruding muscle is 2 protruding muscle and relative 180 degrees settings also.
According to the purpose of the invention, another technical scheme is provided: a detection device for securing a high pressure syringe barrel in place, comprising: the flange body rotationally cooperates with the cylinder knob, set up micro-gap switch on the flange body and set up in the micro-gap switch top and with the at least partial friction member that contacts of flange body, wherein the cylinder end has and supports the flange that leans on the contact with the friction member and sets up on the flange and extend and can trigger the elasticity plunger piece of micro-gap switch action along cylinder axial direction, the flange body includes the centre bore, by inboard and to the protruding muscle that the centre bore center is formed and set up on the protruding muscle and with the fixed reference column in friction member location, the friction member is provided with the through-hole of acceping the micro-gap switch actuation end, and the plane that the through-hole belongs to is higher than micro-gap switch's actuation end, wherein the shape of friction member and the shape phase-match of protruding muscle, and be the arc.
Therefore, the invention has the following characteristics:
the invention adopts physical switch detection instead of signal detection, and has better stability, more reliable detection and low failure rate.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is an exploded view of the present invention.
FIG. 2 is a schematic view of the present invention engaged with a syringe and the syringe in an initial state.
Fig. 3 is a schematic cross-sectional view of fig. 2.
FIG. 4 is a schematic view of the present invention engaged with a syringe and the syringe is in a fixed state.
Fig. 5 is a schematic cross-sectional view of fig. 4.
Detailed Description
The technical solution of the present invention will be clearly and completely described by the following embodiments. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 5, the present invention provides an embodiment of a device for detecting whether a syringe knob 40 for driving a syringe to rotate is rotated in place, which comprises a flange body 10 rotatably engaged with the syringe knob 40, a micro switch 20 disposed on the flange body 10, and a friction member 30 disposed above the micro switch 20 and at least partially contacting the flange body 10. Wherein the barrel knob 40 terminates in a pair of flanges 42 and an elastomeric plunger element 44 disposed on the flanges 42 and extending in the axial direction of the barrel. The resilient plunger member 44 includes a spring, and a ball head at a free end of the spring.
The flange body 10 is a ring-shaped member and includes a central hole 12, a rib 14 formed by protruding from the inner side toward the center of the central hole 12, and a positioning post 16 disposed on the rib 14 and fixed to the friction member 30. Wherein the plane of the rib 14 and the plane of the flange body 10 have a step. The ribs 14 are arcuate in cross-section.
The shape of the friction member 30 is matched with that of the rib 14, and the friction member is also an arc-shaped section, and is provided with a through hole 32, the through hole 32 accommodates the actuating end of the microswitch 20, and the plane of the through hole 32 is higher than the actuating end of the microswitch 20, so that the actuating end of the microswitch 20 is not exposed outside, the friction member 30 is prevented from being triggered by mistake, and at the moment, the syringe is not fixed, so that the injection cannot be performed.
As shown in figure 3, the syringe knob 40 is in the initial state, the flange 42 is not in abutting contact with the friction member 30, and the micro switch 20 is located in the through hole 32 and is not triggered, once the syringe knob 40 rotates 90 degrees, the flange 42 is in abutting contact with the friction member 30, as shown in figure 5, the spring of the elastic plunger member 44 is released, the through hole 32 is plugged by the ball head of the elastic plunger member 44, and the micro switch 20 is triggered to act, at this time, the switch is turned on, which indicates that the syringe is fixed in place, and the injection can be started. Therefore, the invention detects through the physical switch instead of the signal, thereby having better stability, more reliable detection and low failure rate.
It should be understood that the above-mentioned embodiments are only illustrative of the technical concepts and features of the present invention, and are intended to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the scope of the present invention. All equivalent changes or modifications made according to the spirit of the main technical scheme of the invention are covered in the protection scope of the invention.
Claims (3)
1. A device for detecting the securement of a high pressure syringe barrel in place, comprising: the syringe comprises a flange body, a microswitch and a friction piece, wherein the flange body is in rotary fit with a syringe knob, the microswitch is arranged on the flange body, the friction piece is arranged above the microswitch and is in at least partial contact with the flange body, and the tail end of the syringe knob is provided with a flange which is in abutting contact with the friction piece and an elastic plunger piece which is arranged on the flange, extends along the axial direction of the syringe and can trigger the microswitch to act;
the flange body is a ring-shaped piece and comprises a central hole, a convex rib formed by protruding from the inner side to the center of the central hole, and a positioning column which is arranged on the convex rib and is fixedly positioned with the friction piece;
the convex rib forms a step in the axial direction;
the sections of the friction piece and the convex rib are arc sections and the shapes of the sections are matched with each other;
the friction piece is provided with a through hole for accommodating the actuating end of the microswitch, and the plane of the through hole is higher than the actuating end of the microswitch.
2. The detection device of claim 1, wherein: the friction piece is 2 and relative 180 degrees settings, and protruding muscle is 2 protruding muscle and relative 180 degrees settings also.
3. A device for detecting the securement of a high pressure syringe barrel in place, comprising: the flange body is in rotary fit with the needle cylinder knob, the microswitch is arranged on the flange body, the friction piece is arranged above the microswitch and is in at least partial contact with the flange body, the tail end of the needle cylinder knob is provided with a flange which is in butt contact with the friction piece, and an elastic plunger piece which is arranged on the flange, extends along the axial direction of the needle cylinder and can trigger the action of the microswitch, the flange body is an annular piece and comprises a central hole, a convex rib which is formed by protruding the inner side to the center of the central hole, and a positioning column which is arranged on the convex rib and is fixedly positioned with the friction piece, the friction piece is provided with a through hole for accommodating the actuating end of the microswitch, the plane of the through hole is higher than the actuating end of the microswitch, and the shape of the friction piece is matched with the shape of the convex rib and is arc; the convex rib forms a step in the axial direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710406652.9A CN107126601B (en) | 2017-06-02 | 2017-06-02 | Detection device for fixing high-pressure injector needle cylinder in place |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710406652.9A CN107126601B (en) | 2017-06-02 | 2017-06-02 | Detection device for fixing high-pressure injector needle cylinder in place |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107126601A CN107126601A (en) | 2017-09-05 |
| CN107126601B true CN107126601B (en) | 2023-03-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710406652.9A Active CN107126601B (en) | 2017-06-02 | 2017-06-02 | Detection device for fixing high-pressure injector needle cylinder in place |
Country Status (1)
| Country | Link |
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| CN (1) | CN107126601B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108655981B (en) * | 2018-05-23 | 2019-10-15 | 江苏迈硕医疗科技有限公司 | A kind of fixed equipment detecting injector for medical purpose |
| CN110882444A (en) * | 2019-12-09 | 2020-03-17 | 深圳安科高技术股份有限公司 | High-pressure syringe fixes detection device that targets in place |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005000203A (en) * | 2003-06-09 | 2005-01-06 | Nemoto Kyorindo:Kk | Liquid medication injection system |
| WO2010027695A2 (en) * | 2008-08-26 | 2010-03-11 | Mallinckrodt Inc. | Power injector having calibrated pressure monitoring functionality |
| JP5752053B2 (en) * | 2009-02-04 | 2015-07-22 | マリンクロッド エルエルシー | Syringe with visual usage indication |
| US10293114B2 (en) * | 2012-05-04 | 2019-05-21 | Sanofi-Aventis Deutschland Gmbh | Drug delivery device |
| CN105194767A (en) * | 2015-11-13 | 2015-12-30 | 南京感控通化工产品经营部 | Needle cylinder mounting and fixing device of high-pressure injector |
| CN205145306U (en) * | 2015-11-20 | 2016-04-13 | 深圳影迈科技股份有限公司 | Push -and -pull box subassembly and syringe pump of syringe pump |
| CN207679809U (en) * | 2017-06-02 | 2018-08-03 | 南京感控通化工产品经营部 | Detection device for high pressure injector syringe fix in position |
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2017
- 2017-06-02 CN CN201710406652.9A patent/CN107126601B/en active Active
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| Publication number | Publication date |
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| CN107126601A (en) | 2017-09-05 |
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Effective date of registration: 20210317 Address after: 210029 Block A, 8th Floor, 301 Hanzhongmen Street, Gulou District, Nanjing City, Jiangsu Province Applicant after: Nanjing Jusha Display Technology Co.,Ltd. Applicant after: NANJING JUSHA MEDICAL TECHNOLOGY Co.,Ltd. Address before: 210003 No.5, Hongmiao Lane 1, Fujian Road, Gulou District, Nanjing City, Jiangsu Province Applicant before: NANJING GANKONGTONG CHEMICAL PRODUCT OPERATION PORTION |
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