CN103877648A - Contrast medium high-pressure injector and component thereof - Google Patents

Abstract

The invention discloses a contrast medium high-pressure injector and a component thereof. The contrast medium high-pressure injector comprises a high-pressure injector, a radiography guide tube, a contrast medium container and a bottle stabber, wherein the high-pressure injector is combined by a high-pressure needle cylinder and a high-pressure injector push rod and connected with the radiography guide tube via a connection extension tube, and the bottle stabber is connected onto the contrast medium container. The contrast medium high-pressure injector is characterized in that a double-way check valve is arranged in the middle of the connection extension tube and connected onto the bottle stabber via a connection tube, when the high-pressure injector push rod of the high-pressure injector is pushed inwardly, a contrast medium in the high-pressure injector is conveyed to the radiography guide tube via the connection extension tube and the double-way check valve, when the high-pressure injector push rod is pulled outwardly, the contrast medium in the contrast medium container flows into the connection tube via a first passage of the bottle stabber and sucked into the high-pressure injector via the double-way check valve, and continuous contrast medium supplying during CT (computerized tomography) radiography can be realized by pushing the high-pressure injector push rod inwardly again. The contrast medium high-pressure injector is convenient to use, low in cost, reliable in performance and capable of being widely popularized and used.

Description

A kind of contrast agent high pressure injector and assembly thereof

Technical field

The present invention relates to a kind of medical apparatus and instruments, relate in particular to a kind of contrast agent high pressure injector and assembly thereof.

Background technology

Contrast-medium injection when contrast agent high pressure injector is mainly used in angiography, the contrast-medium injection while also can be used for CT contrast examination.The effect of high pressure injector is to ensure within a certain period of time the high concentration Baryan fast injection of q.s to be arrived to check point.How it is made up of syringe cylinder and injection head, promotion and control system, support standing part and associate member etc.Can be fixed on wall, ceiling, treatment table, go-cart and movable stand.At present in high pressure enhanced CT angiographic procedure, generally by the mode of suction pipe, contrast agent to be sucked in high pressure injector syringe, and then connection angiography catheter, in the time that the contrast agent of high pressure injector syringe is finished, need take off angiography catheter, suck contrast agent with suction pipe again, very inconvenient in angiographic procedure.

Summary of the invention

On the basis of above-mentioned drawback, the invention provides a kind of novel contrast agent high pressure injector and assembly thereof, this equipment is changed intermittent infusion pattern in the past, contrast agent can be provided continuously in CT angiographic procedure, needn't take off again conduit and again draw with syringe the trouble that contrast agent supplements contrast agent, ensure the seriality of CT shadowgraph technique.

In order to achieve the above object, technical scheme of the present invention is: a kind of contrast agent high pressure injector and assembly thereof, comprise: the high pressure injector being combined by high pressure syringe and high pressure injector push rod, the angiography catheter that high pressure injector connects by connecting extension tube, contrast container and be connected to the bottle pricking device in contrast container, it is characterized in that: in the middle of described connection extension tube, be provided with double check valve, and this double check valve is connected on bottle pricking device by connection tube, double check valve is by main body, joint, the seat of honour and diaphragm seal form, joint and the seat of honour are check valve, each check valve and main body junction are provided with diaphragm seal, while inside pushing away the high pressure injector push rod of high pressure injector, joint is opened, the seat of honour is closed, contrast agent in high pressure injector is transported to angiography catheter place by connecting extension tube and double check valve, after the contrast agent in high pressure injector is finished, draw high pressure injector push rod outward, joint cuts out, open at the seat of honour, contrast agent in contrast container flows in connection tube by the first passage in bottle pricking device, and then be drawn in high pressure injector by double check valve, again, push away high pressure injector push rod, can in CT angiographic procedure, realize contrast agent is provided continuously.

In addition, in this process, the second channel of bottle pricking device is communicated to the external world by porous plug and gland, like this, after the contrast agent using in contrast container, can not form vacuum state in this contrast container, guarantees the smooth of use procedure.

Compared with prior art, the structure of contrast agent high pressure injector provided by the invention and assembly thereof is unusual, in high pressure enhanced CT angiographic procedure, suck contrast agent by drawing high pressure injector push rod can open CT high pressure injector outward, then in, push away high pressure injector push rod, make the contrast agent in high pressure injector squeeze into angiography catheter, can implement CT radiography, in the time that the contrast agent in high pressure syringe is finished, can suck immediately contrast agent, not need to take off angiography catheter.Ensure the seriality of CT radiography operation.This equipment is easy to use, and cost is low, and dependable performance can extensively be promoted the use of.

Brief description of the drawings

Accompanying drawing 1 is the structural representation of this contrast agent high pressure injector and assembly thereof.

Accompanying drawing 2 is the structural representation of double check valve in accompanying drawing 1.

Accompanying drawing 3 is the explosive view of double check valve in accompanying drawing 1.

Accompanying drawing 4 is the structural representation of bottle pricking device in accompanying drawing 1

Detailed description of the invention

Below in conjunction with drawings and Examples, the present invention is further described.

A kind of contrast agent high pressure injector and assembly thereof, comprise: the high pressure injector being combined by high pressure syringe 1 and high pressure injector push rod 8, the angiography catheter 4 that high pressure injector connects by connecting extension tube 2, contrast container 7 and be connected to the bottle pricking device 6 in contrast container 7, it is characterized in that: in the middle of described connection extension tube 2, be provided with double check valve 3, and this double check valve 3 is connected on bottle pricking device 6 by connection tube 5, double check valve 3 is bymain body 9,joint 10, the seat ofhonour 11 anddiaphragm seal 12 form,joint 10 and the seat ofhonour 11 are check valve, each check valve andmain body 9 junctions are provided withdiaphragm seal 12, while inside pushing away the high pressure injector push rod 8 of high pressure injector,joint 10 is opened, the seat ofhonour 11 is closed, contrast agent in high pressure injector is transported to angiography catheter 4 places by connecting extension tube 2 and double check valve 3, after the contrast agent in high pressure injector is finished, draw high pressure injector push rod 8 outward, joint 10 cuts out, open at the seat ofhonour 11, contrast agent in contrast container 7 flows in connection tube 5 by the first passage 15 in bottle pricking device 5, and then be drawn in high pressure injector by double check valve 3, again, push away high pressure injector push rod 8, can in CT angiographic procedure, realize contrast agent is provided continuously.In addition, in this process, the second channel 16 of bottle pricking device 6 is communicated to the external world by porous plug 14 and gland 13, like this, after the contrast agent using in contrast container 7, can not form vacuum state in this contrast container 7, guarantees the smooth of use procedure.

Claims (3)

1. a contrast agent high pressure injector and assembly thereof, comprise: the high pressure injector being combined by high pressure syringe (1) and high pressure injector push rod (8), the angiography catheter (4) that high pressure injector connects by connecting extension tube (2), contrast container (7) and be connected to the bottle pricking device (6) in contrast container (7), it is characterized in that: in the middle of described connection extension tube (2), be provided with double check valve (3), and this double check valve (3) is connected on bottle pricking device (6) by connection tube (5), in double check valve (3), there are two check valves.

2. a kind of contrast agent high pressure injector according to claim 1 and assembly thereof, it is characterized in that: double check valve (3) is by main body (9), joint (10), the seat of honour (11) and diaphragm seal (12) form, joint (10) and the seat of honour (11) are check valve, each check valve and main body (9) junction is provided with diaphragm seal (12), while inside pushing away the high pressure injector push rod (8) of high pressure injector, joint (10) is opened, the seat of honour (11) is closed, while drawing high pressure injector push rod (8) outward, joint (10) cuts out, open at the seat of honour (11), realize contrast agent is provided continuously.

3. a kind of contrast agent high pressure injector according to claim 1 and assembly thereof, it is characterized in that: in described bottle pricking device (6), have two passages, first passage (15) and second channel (16), first passage (15) communicates with connection tube (5), for contrast agent path, second channel (16) is communicated to the external world by porous plug (14) and gland (13).

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