CN109939300A - A kind of Invasive Technology Department contrast agent injector - Google Patents
A kind of Invasive Technology Department contrast agent injector Download PDFInfo
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- CN109939300A CN109939300A CN201910333255.2A CN201910333255A CN109939300A CN 109939300 A CN109939300 A CN 109939300A CN 201910333255 A CN201910333255 A CN 201910333255A CN 109939300 A CN109939300 A CN 109939300A
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- contrast agent
- catch bar
- injection
- technology department
- invasive technology
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Abstract
The present invention relates to Invasive Technology Department equipment technical field, specifically a kind of Invasive Technology Department contrast agent injector, including the injection mechanism through side wall of outer shell and the driving assembly for driving injection mechanism to be injected；The injection mechanism includes injection-tube, injection head and catch bar, catch bar is fixedly connected with driving assembly, and one end of catch bar is inserted in injection-tube and being fixedly connected with the piston, it is provided with intrusion slot on one side far from catch bar on the piston, movable plate is slidably fitted in intrusion slot, the portable pillar connecting with movable plate is inserted to be fixedly connected in the cavity on catch bar and with the metal plate for being connected with spring, and the two sides of the metal plate are separately installed with the first contact-making switch being electrically connected with driving assembly.Realize that the equilibrium state of movable plate two sides maintains using the elastic force of spring, when patient's body pressure is greater than spring force, the mobile circuit on state disconnected to moment with driving assembly of movable plate realizes the Safety Injection of contrast agent.
Description
Technical field
The present invention relates to Invasive Technology Department equipment technical field, specifically a kind of Invasive Technology Department contrast agent injector.
Background technique
It, need to be to patient's body bolus administration of contrast agent when implementing retrograde pyelography, urethrography and cholangiography etc..Radiography
Agent is to be injected into tissue or intraorganic chemicals for enhancing Imaging Study effect.The density of these chemicals is high
In or lower than surrounding tissue, it is contrasted with surrounding tissue, contrast images can be shown by certain instruments.
Currently, commonly inject method be doctor under the irradiation of X-ray machine to the internal bolus administration of contrast agent of patient, it is long-term to locate
In the environment of radioactive ray, it is clear that the health of doctor can be damaged, therefore, related scholar designs contrast agent injector, but makes
When with such contrast agent injector, can not real-time perception patient's body pressure change, therefore, it is impossible to control the speed injected well
The amount of degree and bolus administration of contrast agent, under special circumstances using there are security risks, such as: patient's obstruction of biliary tract, it can not before radiography
It distinguishes, if will cause total amount of liquid in biliary tract still using mechanical thrust to patient's body bolus administration of contrast agent and increase and nothing
Method is normally discharged, and binary passage presyure power sharply increases, and serious person will cause the damage of tube wall around or tissue and increase patient not
Necessary pain.
Existing patent realizes pressure detecting work using the effect of pressure sensor, at high cost, and is transmitted by signal, makes
With environmental requirement height, limitation height.
Summary of the invention
The purpose of the present invention is to provide a kind of Invasive Technology Department contrast agent injectors, to solve to propose in above-mentioned background technique
The problem of.
To achieve the above object, the invention provides the following technical scheme:
A kind of Invasive Technology Department contrast agent injector, including the injection mechanism through side wall of outer shell and for driving injection mechanism
The driving assembly injected；The injection mechanism includes injection-tube, injection head and catch bar, and catch bar is fixed with driving assembly
Connection, and one end of catch bar is inserted in injection-tube and being fixedly connected with the piston, far from the one side of catch bar on the piston
It is provided with intrusion slot, is slidably fitted with movable plate in intrusion slot, the portable pillar connecting with movable plate is inserted in the sky on catch bar
Intracavitary and be fixedly connected with the metal plate for being connected with spring, the two sides of the metal plate are separately installed with to be electrically connected with driving assembly
The first contact-making switch connect.
As a further solution of the present invention: a contact point of first contact-making switch is mounted on cavity inner wall,
Another contact point installation is on a metal plate.
As further scheme of the invention: the metal plate is provided with electromagnet, electromagnetism far from the side of portable pillar
The second contact-making switch is provided between iron and metal plate.
As further scheme of the invention: two contact points of second contact-making switch are separately mounted to metal plate
On electromagnet.
As further scheme of the invention: the driving component includes rack-plate, micromotor and gear, micro electric
Machine is installed inside of the housing by motor cabinet, and the output shaft of micromotor is rotatablely connected by transmission belt and the gear,
Rack gear be slidably mounted on side wall of outer shell and engaged with the rack-plate that catch bar is fixedly connected.
As further scheme of the invention: being fixed with sliding block on the rack-plate, sliding block sliding is being set to shell
In sliding slot on side wall.
As further scheme of the invention: the T-shaped structure setting of sliding block, and the T-shaped knot in inner end of sliding slot
Structure.
As further scheme of the invention: the driving component is electric telescopic rod, and electric telescopic rod connects with first
Touching switch electrical connection.
Compared with prior art, it the beneficial effects of the present invention are: the present invention is novel in design, is realized and is lived using the elastic force of spring
The equilibrium state of movable plate two sides maintains, when patient's body pressure is greater than spring force, movable plate it is mobile to moment disconnect with
The circuit on state of driving assembly realizes the Safety Injection of contrast agent, and at low cost, limitation is low, while the electromagnet being arranged
It is powered, metal plate is attracted, it is ensured that the first contact-making switch does not generate contact, highly-safe after driving assembly disconnection.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of Invasive Technology Department contrast agent injector.
Fig. 2 is the structural schematic diagram of injection mechanism in Invasive Technology Department contrast agent injector.
Fig. 3 is the sectional view of injection mechanism in Invasive Technology Department contrast agent injector.
Fig. 4 is the schematic enlarged-scale view in Fig. 3 at A.
Fig. 5 is the sectional view in the direction B-B in Invasive Technology Department contrast agent injector.
In figure: 1- shell, 2- injection-tube, 3- injection head, 4- catch bar, 5- rack-plate, 6- sliding slot, 7- micromotor, 8-
Gear, 9- sliding block, 10- piston, 11- movable plate, 12- connecting column, 13- spring, the first contact-making switch of 14-, the contact of 15- second are opened
Pass, 16- electromagnet, 17- metal plate.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment one
Please refer to Fig. 1~5, in the embodiment of the present invention, a kind of Invasive Technology Department contrast agent injector, including run through 1 side of shell
The injection mechanism of wall and driving assembly for driving injection mechanism to be injected；The injection mechanism includes injection-tube 2, injection
First 3 and catch bar 4, catch bar 4 be fixedly connected with driving assembly, and one end of catch bar 4 is inserted in injection-tube 2 and and piston
10 are fixedly connected, and drive catch bar 4 to move in injection-tube 2 with piston 10 by driving assembly, thus realize injection, it is described
It is provided with intrusion slot on one side far from catch bar 4 on piston 10, movable plate 11 is slidably fitted in intrusion slot, connects with movable plate 11
The portable pillar connect is inserted to be fixedly connected in the cavity on catch bar 4 and with the metal plate 17 for being connected with spring 13, the metal
The two sides of plate 17 are separately installed with the first contact-making switch 14 and the second contact-making switch 15, and metal plate 17 far from portable pillar one
Side is provided with electromagnet 16.
Specifically, a contact point of first contact-making switch 14 is mounted on cavity inner wall, another contact point peace
On metal plate 17, two contact points of the second contact-making switch 15 are separately mounted on metal plate 17 and electromagnet 16, when
When two contact point contacts of one contact-making switch 14, driving assembly forms closed circuit, realizes driving work, when the second contact is opened
When closing 15 two contact point contacts, electromagnet 16 is charged, to attract metal plate 17, driving assembly can not work at this time
Make and injection process stops, to ensure to inject the safety of contrast agent.
The elastic force of above-mentioned spring 13 is selected according to patient's body safe pressure, and concrete implementation mode is to work as driving
Component driver catch bar 4 push piston 10 carry out injection treatment, when patient's body pressure increase arrive greater than spring 13 elastic force when,
Movable plate 11 is mobile, to drive metal plate 17 mobile, the first contact-making switch 14 is disconnected at this time, and driving assembly stops working, and
Injection process stops.
Furthermore, it is understood that the driving component includes rack-plate 5, micromotor 7 and gear 8, micromotor 7 passes through motor
Seat is mounted on the inside of shell 1, and the output shaft of micromotor 7 is rotatablely connected by transmission belt and the gear 8, rack gear 8 with
It is slidably mounted on 1 side wall of shell and is engaged with the rack-plate 5 that catch bar 4 is fixedly connected, micromotor 7 drives gear when working
8 rotations, gear 8 is mobile with moving gear 5, to realize the movement of catch bar 4, realizes contrast agent injection.
Specifically, sliding block 9 is fixed on the rack-plate 5, sliding block 9 is slided in the sliding slot 6 being set on 1 side wall of shell
It is interior, it is slided between rack-plate 5 and shell 1 to realize.
Preferably, the T-shaped structure setting of the sliding block 9, and the equally T-shaped structure in the inner end of sliding slot 6 are realizing rack gear
During plate 5 slides, while rack-plate 5 is limited.
Embodiment two
In specific implementation process of the present invention, micromotor 7 can be carried out small size during instant cut-off due to inertia
Degree rotation, the rotation of micromotor 7 necessarily drive catch bar 4 mobile, it is thus possible to which there are security risks, therefore above-mentioned in order to eliminate
Security risk, the application also proposed another embodiment, specifically, the driving component is electric telescopic rod, electric expansion
Bar is electrically connected with the first contact-making switch 14.
It is of the invention novel in design, it realizes that the equilibrium state of movable plate two sides maintains using the elastic force of spring, works as patient's body
When pressure is greater than spring force, the mobile circuit on state disconnected to moment with driving assembly of movable plate realizes contrast agent
Safety Injection, while be arranged electromagnet driving assembly disconnection after be powered, metal plate is attracted, it is ensured that first contact
Switch does not generate contact, highly-safe.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (8)
1. a kind of Invasive Technology Department contrast agent injector, including the injection mechanism through shell (1) side wall and for driving injector
The driving assembly that structure is injected；The injection mechanism includes injection-tube (2), injection head (3) and catch bar (4), catch bar (4)
It is fixedly connected with driving assembly, and one end of catch bar (4) inserts in injection-tube (2) and is fixedly connected with piston (10),
It is characterized in that, is provided with intrusion slot on one side far from catch bar (4) on the piston (10), is slidably fitted with activity in intrusion slot
Plate (11), the portable pillar being connect with movable plate (11) insert in cavity on catch bar (4) and be connected with spring (13)
Metal plate (17) is fixedly connected, and the two sides of the metal plate (17) are separately installed with to be contacted with the first of driving assembly electrical connection
It switchs (14).
2. a kind of Invasive Technology Department contrast agent injector according to claim 1, which is characterized in that first contact-making switch
(14) a contact point is mounted on cavity inner wall, and another contact point is mounted on metal plate (17).
3. a kind of Invasive Technology Department contrast agent injector according to claim 1, which is characterized in that the metal plate (17) is remote
Side from portable pillar is provided with electromagnet (16), is provided with the second contact-making switch between electromagnet (16) and metal plate (17)
(15)。
4. a kind of Invasive Technology Department contrast agent injector according to claim 3, which is characterized in that second contact-making switch
(15) two contact points are separately mounted on metal plate (17) and electromagnet (16).
5. a kind of Invasive Technology Department contrast agent injector according to claim 1, which is characterized in that the driving component includes
Rack-plate (5), micromotor (7) and gear (8), micromotor (7) are mounted on the inside of shell (1) by motor cabinet, and micro-
The output shaft of type motor (7) is rotatablely connected by transmission belt and the gear (8), rack gear (8) and is slidably mounted on shell (1) side
It is engaged on wall and with the rack-plate (5) that catch bar (4) is fixedly connected.
6. a kind of Invasive Technology Department contrast agent injector according to claim 5, which is characterized in that on the rack-plate (5)
It is fixed with sliding block (9), sliding block (9) sliding is in the sliding slot (6) being set on shell (1) side wall.
7. a kind of Invasive Technology Department contrast agent injector according to claim 6, which is characterized in that the sliding block (9) is T-shaped
Structure setting, and the T-shaped structure in inner end of sliding slot (6).
8. a kind of Invasive Technology Department contrast agent injector according to claim 1, which is characterized in that the driving component is electricity
Dynamic telescopic rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910333255.2A CN109939300B (en) | 2019-04-24 | 2019-04-24 | Contrast agent injector for interventional department |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910333255.2A CN109939300B (en) | 2019-04-24 | 2019-04-24 | Contrast agent injector for interventional department |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109939300A true CN109939300A (en) | 2019-06-28 |
| CN109939300B CN109939300B (en) | 2021-08-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910333255.2A Active CN109939300B (en) | 2019-04-24 | 2019-04-24 | Contrast agent injector for interventional department |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110339419A (en) * | 2019-08-05 | 2019-10-18 | 重庆公共运输职业学院 | A kind of automatic antiseep high pressure injector |
| CN111773469A (en) * | 2020-07-13 | 2020-10-16 | 仪维武 | Contrast medium injection device |
| CN113349748A (en) * | 2021-06-03 | 2021-09-07 | 常州市第一人民医院 | Blood pressure monitoring and regulating device |
| CN113546251A (en) * | 2021-06-03 | 2021-10-26 | 山东第一医科大学附属肿瘤医院(山东省肿瘤防治研究院、山东省肿瘤医院) | Auxiliary injector for contrast medium in interventional department and auxiliary supporting assembly thereof |
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| CN1047368A (en) * | 1989-05-11 | 1990-11-28 | 比斯帕克公共有限公司 | Pump-unit for the biologic medical use |
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| CN205145301U (en) * | 2015-10-30 | 2016-04-13 | 无锡沃骐医疗科技有限公司 | Injector |
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| CN1047368A (en) * | 1989-05-11 | 1990-11-28 | 比斯帕克公共有限公司 | Pump-unit for the biologic medical use |
| CN2170766Y (en) * | 1993-04-30 | 1994-07-06 | 易宏举 | Spring switch type infusion device with automatic stop infusion alarm |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110339419A (en) * | 2019-08-05 | 2019-10-18 | 重庆公共运输职业学院 | A kind of automatic antiseep high pressure injector |
| CN111773469A (en) * | 2020-07-13 | 2020-10-16 | 仪维武 | Contrast medium injection device |
| CN111773469B (en) * | 2020-07-13 | 2021-11-19 | 仪维武 | Contrast medium injection device |
| CN113349748A (en) * | 2021-06-03 | 2021-09-07 | 常州市第一人民医院 | Blood pressure monitoring and regulating device |
| CN113546251A (en) * | 2021-06-03 | 2021-10-26 | 山东第一医科大学附属肿瘤医院(山东省肿瘤防治研究院、山东省肿瘤医院) | Auxiliary injector for contrast medium in interventional department and auxiliary supporting assembly thereof |
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| Publication number | Publication date |
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| CN109939300B (en) | 2021-08-24 |
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