CN106943642A - Therapeutic medical fluid loop suit and the fluid loop system being set with using the fluid loop - Google Patents

Abstract

A kind of therapeutic medical fluid loop suit and the fluid loop system being set with using the therapeutic medical fluid loop.Fluid loop suit (201) includes contrast agent pipeline (205), physiological saline pipeline (206), syringe pipeline (204), Patient line (208) and the base portion pipeline portion (210) being connected with each pipeline.Contrast agent pipeline (205) utilizes the double linked one-way valve (215A) for being used for making liquid only be flowed to prescribed direction and is connected with base portion pipeline portion (210), and physiological saline pipeline (206) is also connected using identical double linked one-way valve (215B) with base portion pipeline portion (210).Fluid loop suit (201) also includes relief valve (202A), the relief valve (202A) is configured on physiological saline pipeline (206), for physiology brine line (206) to be opened and closed by making relief valve (202A) movable link (203) mobile.

Description

Therapeutic medical fluid loop suit and the fluid loop being set with using the fluid loop System

The application be Application No. 201280044808.9, the applying date be on 07 04th, 2016, entitled medical treatment The divisional application of fluid loop suit and the fluid loop system being set with using the fluid loop.

Technical field

The present invention relates to for injecting the fluid loop suit of the decoction such as contrast agent, physiological saline to patient and being System, more particularly to the fluid loop suit and system of the angiograms such as cardia catheterization can be applied to.

Background technology

As therapeutic medical diagnostic imaging device, with CT (Computed Tomography：Computer tomography) sweep Retouch instrument, MRI (Magnetic Resonance Imaging：Magnetic resonance imaging) device, PET (Positron Emission Tomography：Positron emission computerized tomography) device, angiogram (angiography) device and MRA (MR Angio： Magnetic resonance angiography) device etc..When shooting the image of patient using said apparatus, big multidirectional patient's injection contrast agent, life Manage the decoctions such as salt solution.

Patent Document 1 discloses fluid loop system (such as Fig. 7 A~figure used when carrying out angiogram 7B).The system is used to the decoction of the physiology salt water source being connected with fluid loop, source of contrast being incorporated into syringe, and Above-mentioned decoction is injected towards patient.

Japanese Unexamined Patent Publication 2007-222656 publications

In addition, generally, when carrying out angiogram, it is necessary to aspirated according to the order of regulation into syringe contrast agent and to Patient injects contrast agent and physiological saline is aspirated into syringe and (is referred to aftermentioned) to patient's saline injection.At this In the angiographic procedure of sample, in the case where operator needs the threeway plug valve in operating liquid loop, when generation hand During the operating mistake of art operator, it is impossible to suitably carry out angiogram.

The content of the invention

The problem of present invention allows for above-mentioned point and make, its object is to provide that operation technique can be not being needed Person implement well in the case of complicated operation the fluid loop suit and fluid loop system of angiogram.

The fluid loop suit of a technical scheme of the invention to achieve these goals is as described below.It is a kind of medical Fluid loop suit, its be applied to angiogram, wherein, the fluid loop suit include：Contrast agent pipeline, itself and contrast agent Chamber is connected；Physiological saline pipeline, it is connected with physiological saline chamber；Syringe pipeline, it is connected with syringe；Suffer from Person's pipeline, it is used to convey contrast agent or physiological saline towards patient；And base portion pipeline portion, it is connected with above-mentioned each pipeline Connect, and T-shaped is connected into respectively with above-mentioned contrast agent pipeline and above-mentioned physiological saline pipeline, also, fluid loop suit is also Including：1st valve member, it is configured at the connecting portion between above-mentioned contrast agent pipeline and above-mentioned base portion pipeline portion, the 1st valve member It is configured to, (i), in the case where liquid has been aspirated by the upstream side towards above-mentioned base portion pipeline portion, contrast agent is from contrast agent pipeline Inside flow in above-mentioned base portion pipeline portion, (ii) has been extruded in liquid by the upstream side from above-mentioned base portion pipeline portion towards downstream In the case of, liquid is flowed by the valve member to the upstream side from above-mentioned base portion pipeline portion towards the direction in downstream；2nd valve Component, it is configured at the connecting portion between above-mentioned physiological saline pipeline and above-mentioned base portion pipeline portion, and the 2nd valve member is configured to, By from above-mentioned physiology in the case that liquid has been extruded from the upstream side in above-mentioned base portion pipeline portion towards downstream or in liquid In the case that Brine Pipe line side has been extruded towards the 2nd valve member side, liquid is under the upstream side direction in above-mentioned base portion pipeline portion Swim the direction flowing of side or flowed to the direction from above-mentioned saline tube line side towards the 2nd valve member side；And the 1st release Put valve (Japanese：リ リ ー ス バ Le Block), it has movable link and is configured on above-mentioned physiological saline pipeline, for by making Above-mentioned movable link moves and above-mentioned physiological saline pipeline is opened and closed.

In addition, the fluid loop system of the technical scheme of the present invention includes：Above-mentioned therapeutic medical fluid loop suit；Note Enter device, it keeps the syringe in the way of it can will be set with the syringe being connected dismounting with the fluid loop, and makes the note The piston component of emitter moves and carried out the injection and suction of liquid；And switch, it is used to keep aforesaid liquid loop to cover A part for dress, and with for making the driver part that the above-mentioned movable link of at least the above 1st relief valve is acted.

In this manual, " connection " refers not only to defined component and is directly connected to object, also including defined component It is connected in the state of via some other components with object.

" connecting into T-shaped " is referred to connecting in the way of making stream branch, and the angle to cross pipe-line is not appointed What is limited.

" (contrast agent/physiological saline) chamber " refers to the containers such as bottle, bag, is not limited to specific shape.

Using the present invention, using the teaching of the invention it is possible to provide can be in the case where not needing operator to carry out complicated operation well Implement the fluid loop suit and system of angiogram.

Brief description of the drawings

Fig. 1 is the figure for the fluid loop system for schematically showing one embodiment of the present invention.

Fig. 2A is the schematic diagram for the function of representing double linked one-way valve.

Fig. 2 B are the figures for the switch for schematically showing the part for keeping fluid loop to be set with.

Fig. 2 C are the figures for the fluid loop system for schematically showing another embodiment of the present invention.

Fig. 3 is the figure (suction of contrast agent) of a part for the process for representing angiogram.

Fig. 4 is the figure (extrusion of contrast agent) of a part for the process for representing angiogram.

Fig. 5 is the figure (removing air) of a part for the process for representing angiogram.

Fig. 6 is the figure (operation of valve) of a part for the process for representing angiogram.

Fig. 7 is the figure (extrusion of contrast agent) of a part for the process for representing angiogram.

Fig. 8 is the figure (being rinsed using physiological saline) of a part for the process for representing angiogram.

Fig. 9 is the figure (additional to rinse) of a part for the process for representing angiogram.

Figure 10 is the figure (foundation of blood path) of a part for the process for representing angiogram.

Figure 11 is the stereogram (decomposing state) for the check valve that band opens wide function.

Figure 12 is the sectional view of the vertical of Figure 11 check valve, represents the state after movable pin protrusion.

Figure 13 is the sectional view of the vertical of Figure 11 check valve, represent movable pin be pressed after state.

Figure 14 is by the enlarged drawing of Figure 13 a part of enlarged representation.

Figure 15 is the stereogram for representing to be configured with the state of supporting member and movable pin etc. on housing main body.

Figure 16 is the in-built stereogram for representing housing main body.

Figure 17 is the stereogram of movable pin.

Figure 18 is the stereogram of supporting member.

Figure 19 is the stereogram for seeing lid from below.

Figure 20 is the figure for representing an example of other pump installations for conveying physiological saline etc..

Figure 21 is the figure for an example for schematically showing rolling pump.

Figure 22 is the figure for an example for schematically showing piston pump.

Figure 23 is the sectional view for another example for representing relief valve.

Figure 24 is the sectional view for the another example for representing relief valve.

Embodiment

Hereinafter, with reference to the accompanying drawings of one embodiment of the present invention.In addition, in the following description, using it is upper and lower, right, It is left to wait the term for representing direction, but this does not limit the present invention.In addition, not differentiating between contrast agent and physiological saline sometimes, and it will make Shadow agent and physiological saline are simply referred to as " decoction " or " liquid ".

The fluid loop system 200 of present embodiment shown in Fig. 1 is used for such as cardia catheterization.The system 200 is wrapped Fluid loop is included to be set with 201 (referring to aftermentioned) and be set with the 201 contrast agent chambers 221 being connected, physiological saline with the loop Chamber 223, converter 270 and syringe 251.Fluid loop system 200 also includes being used to keep syringe 251 and carries out decoction Suction, extrude injection head 260 (illustrate only a part).

Specifically, Fig. 1 fluid loop suit 201 include be connected with syringe 251 syringe pipeline 204, with Contrast agent pipeline 205 that contrast agent chamber 221 is connected, the physiological saline pipeline 206 being connected with physiological saline chamber 223, The converter pipeline 207 that is connected with converter 270, the Patient line 208 being connected via conduit (not shown) with patient, with And the base portion pipeline portion 210 being connected with above-mentioned each pipeline.

For material, length and the diameter of the pipe for constituting each pipeline 204~208, as long as considering to put on the pressure of the pipe Deng and suitably select.During cardia catheterization, due to injecting decoction with higher high pressure, it is therefore preferable that being applied Plus the part of higher pressure is made up of the pipe of high withstand voltage.Similarly, double linked one-way valve 215A, 215B and relief valve described later 202A, 202B etc. are preferably also the valve of high withstand voltage.

As shown in figure 1, " base portion pipeline portion 210 " refers to the part being connected with above-mentioned each pipeline 204~208, its by Pipe, valve and connector etc. are constituted.In this example embodiment, syringe pipeline 204 is connected with the upstream side in base portion pipeline portion 210, And Patient line 208 is connected with downstream.Pars intermedia in base portion pipeline portion 210, is connected with radiography in turn from upstream side Agent pipeline 205, physiological saline pipeline 206 and converter pipeline 207.Above-mentioned pipeline 205~207 respectively with base portion pipeline portion 210 connect into T-shaped.

In the present embodiment, contrast agent pipeline 205 and physiological saline pipeline 206 be utilized respectively double linked one-way valve 215A, 215B is connected with base portion pipeline portion 210.As an example, it is double that double linked one-way valve 215A, 215B (refer to aftermentioned) the two Connection check valve can both use identical double linked one-way valve, or can also use the different double linked one-way valve of function. In Fig. 1, as an example, identical double linked one-way valve has been used.

Double linked one-way valve 215A, 215B are the valves with following such functions (referring also to Fig. 2A)：

(i) in the case of having aspirated liquid in the upstream side (that is, the side of syringe 251) towards base portion pipeline portion 210, allow Liquid flows to the direction of the upstream side towards base portion pipeline portion 210.

(ii) on the other hand, for double linked one-way valve 215A, squeezed from the upstream side in base portion pipeline portion 210 towards downstream In the case of having pressed liquid, liquid by valve 215A, downstream flow by side.For double linked one-way valve 215B, in similarly direction In the case that downstream has extruded liquid, or the feelings of liquid are extruded from the side of physiology brine line 206 towards valve 215B sides Under condition, allow that liquid flows to the direction towards downstream or from the side of physiology brine line 206 towards the direction of valve 215B sides It is dynamic.

In addition, as shown in Figure 2 A, double linked one-way valve 215A, 215B limitation liquid flow and liquid to the upstream side from downstream Body flows towards pipeline 205,206 sides.

In addition, in Fig. 1, another valve 215A is configured with double linked one-way valve 215B upstream, using valve 215A come Limitation liquid is flowed to the upstream side, and therefore, in the loop, physiological saline will not be aspirated towards upstream side.

As shown in figure 1, converter pipeline 207 by the use of the connector 217 without valve function as an example and and base Pipeline portion of portion 210 is connected.Threeway plug valve 213 is provided between the connector 217 and double linked one-way valve 215B.But, should The allocation position of threeway plug valve 213 may not be defined in this.As shown in Figure 2 C, plug valve 213 can also be configured in patient's pipe The position of ratio air borne sensor 232 (referring to aftermentioned) downstream on line 208.

In addition, as an example, threeway plug valve 213 can also be by 3 coupled pipelines along The threeway plug valve of one pipeline occlusion in the direction of the bar of the threeway plug valve 213 is (for example, in the state of Fig. 1, prevent liquid The pipeline (not shown) that body is extended downwardly to court is moved).Such threeway plug valve is applied to operator and as needed will Liquid in pipeline is to situations such as the discharge of outside.

Next, equipment that explanation is connected with each pipeline 204~208 etc..In addition, the said equipment can use conventional public affairs The equipment known, therefore, omits detailed description.

Can be that such as capacity is tens of ml~200ml left as the syringe 251 being connected with syringe pipeline 204 Right syringe, additionally, it is preferred that syringe 251 is can to implement the syringe of high pressure injection.Can also be as needed using use In the protective cover of covering syringe 251.Syringe 251 has the cylinder element of tubular and is sliding freely inserted into the cylinder structure Piston component (plunger rod) in part.In addition, piston component can also be the so-called piston component without rod-type.

Can releasably be provided with syringe 251 injector (injection head) 260 be not limited it is fixed, but be preferably capable of into The type of row such as high pressure injection.Injector is with the motor as driving source and the biasing member moved along the longitudinal direction.It is logical Cross pulling biasing member, so as to pull the piston component of syringe and fill decoction to syringe, on the other hand, by by Biasing member is pressed, so that the liquid in syringe be extruded to outside.

As an example, the contrast agent chamber 221 being connected with contrast agent pipeline 205 can also be filled with contrast agent Ampuliform container.Contrast agent chamber 221 can also be used in the way of hanging on suspender (not shown), in the contrast agent chamber 221 bottom is connected with contrast agent pipeline 205.The connection can also be carried out via needle-valve.

As shown in figure 1, being configured with the lower section of contrast agent chamber 221 for detecting the liquid in contrast agent pipeline 205 In whether be mixed into the air borne sensor 231 (such as infrared ray sensor) of air.Detected by using the air borne sensor 231 Air in pipeline, be capable of detecting when decoction in chamber without situation.In the lower section of air borne sensor 231 and in radiography Drop chamber 233 is configured with agent pipeline 205, the contrast agent from contrast agent chamber 221 once drips to the chamber 233 It is interior, then it can be flowed to from the chamber 233 in contrast agent pipeline 205.

As an example, the physiological saline chamber 223 being connected with physiological saline pipeline 206 can also be filled with making The bag-shaped container of shadow agent, in this example embodiment, physiological saline chamber 223 also have the pressure-producing part for being used for being pressurizeed to bag 224 (also the physiological saline chamber of such structure is referred to as " inflating bag ").The inflating bag can use commercially available inflating bag.Plus It is fixed that splenium part 224 is not limited, but pressure-producing part 224 both can be the pressurization that the fluids such as air are come to compressed bag as driving source Part or the pressure-producing part that motor etc. is come to compressed bag as driving source.It is also configured with physiological saline pipeline 206 With the air borne sensor 231 and drop of contrast agent pipeline 205 with the identical air borne sensor 231 of chamber 233 and drop chamber 233.In addition, be not limited to said structure for the mechanism pressurizeed to physiological saline, behind describe other structures.

The relief valve 202A for the opening and closing for being used to switch the pipeline 206 is provided with physiological saline pipeline 206.For relief valve A 202A specific configuration example, 11~Figure 19 of reference picture is described below.Relief valve 202A has the movement by external force Movable link 203, switches valve opening/valve closing state, so as to physiology brine line 206 by moving the movable link 203 It is opened and closed.In the present embodiment, as an example, it is configured to, valve 202A is opened by pressing movable link 203, So that the physiological saline from inflating bag flows to the side of base portion pipeline portion 210.

Next, equipment that explanation is connected with converter pipeline 207 etc..As an example, it is connected with the pipeline 207 The converter 270 connect can detect blood pressure and monitor the pulse of patient.As an example, the waveform of pulse can be shown in and become On the display 271 that parallel operation 270 is connected.

The relief valve 202A identical relief valves 202B with physiological saline pipeline 206 also is provided with converter pipeline 207. But, relief valve 202B direction is opposite with relief valve 202A.In relief valve 202B, by pressing movable link 203 and Can turn into makes the state that decoction flows to the side of converter 270.

In addition, in the example in fig 1, three are configured between the relief valve 202B and converter 270 of converter pipeline 207 Logical plug valve 213.In addition, relief valve 202A movable link 203 and another relief valve 202B movable link 203 are matched somebody with somebody It is set to facing each other.Also, in order to corresponding with the structure of switch 300 described later, so that from base portion pipeline portion 210 to respectively The mode that distance (L1, L2) untill the movable link 203,203 of valve is differed is configured.

The top ends of Patient line 208 are connected with the thinner pipe referred to as conduit (not shown), and the conduit is inserted into To the intravascular of patient.During cardia catheterization, during catheter tip is transferred to such as coronary artery, from the conduit Contrast agent etc. is injected in top to intravascular.

Then, reference picture 2B illustrates for keeping a part for Fig. 1 fluid loop suit 201 and suitably switching therein The switch 300 of flowing.As an example, the switch 300 has the housing 310 of box-like.Switch 300, which has, to be used to protect Hold the 1st maintaining part 306 of a part for physiological saline pipeline 206 and for keeping the 2nd of a part for converter pipeline 207 the to protect Hold portion 307.Above-mentioned maintaining part 306,307 is formed as concavity, and is configured to set the relief valve of each pipeline inside it 202A、202B。

Be provided with inside the housing 310 of switch 300 for example will press each valve as driving source by motor electromechanical The drive division 301,301 of 202A, 202B movable link 203,203.The drive division 301,301 can also be configured to basis and come from The control signal of outside controller 350 and acted.The function of the controller 350 is not particularly limited, and can also be had There is the function of control injector 260.

Switch 300 also has the 3rd maintaining part 308 of the part for being used to keep Patient line 208 and for detecting this There is the air borne sensor 332 of bubble-free in Patient line 208.As an example, the air borne sensor 332 can be ultrasonic wave The air borne sensor of formula.Compared with air borne sensor of infrared-type etc., even if being mixed into bubble in liquid under elevated pressure conditions In the case of, the sensor 332 of ultrasonic type can also find above-mentioned bubble well, be favourable at this point.

Below, the application method of the fluid loop suit 200 of the present embodiment constituted as described above is illustrated.

Fig. 3 represents original state, the state for relief valve 202A, 202B movable link 203,203 be not pressed and The state that liquid does not flow in the two directions.When operator is pressed as defined in injector 206 in the state of Fig. 3 During button (removing air button), the piston drive mechanism acts and pulled the piston component of syringe 251.Thus, note is made The contrast agent turned into emitter 251 and syringe pipeline 204 in negative pressure, chamber 221 is unidirectional via contrast agent pipeline 205 and duplex Valve 215A and be introduced in syringe pipeline 205,204 and syringe 251.

Then, as shown in figure 4, specifically the piston component of pressing syringe 251 and by contrast agent from the internal pressure of syringe 251 Go out.Fluid is delivered to the side of base portion pipeline portion 210 by syringe pipeline 204, and passes through two double linked one-way valves 215A, 215B And full of base portion pipeline portion 210.As shown in figure 4, persistently carry out the contrast agent extrusion action, until contrast agent be forced into Untill the degree for crossing double linked one-way valve 215B less.

Then, as shown in figure 5, pressing relief valve 202A movable link 203 and relief valve 202B movable link 203 and Open wide two valves 202A, 202B.Each movable link is pressed by the drive division 301,301 of switch 300 and is somebody's turn to do automatically Open wide.At the moment, the pressure-producing part 224 of physiological saline chamber 223 is driven, as being applied with authorized pressure to physiological saline The state of (such as 300mmHg or so).Thus, opened wide by making valve 202A, physiological saline can be from the side of chamber 223 towards base pipe Line portion 210 is flowed, and flows to the side of Patient line 208 by relief valve 202A and double linked one-way valve 215B.Contrast agent is further By threeway plug valve 213 and the branch at connector 217, a part of contrast agent is flowed in Patient line 208, and another part is made Shadow agent is flowed into converter pipeline 207.Herein, because relief valve 202B is opened wide, therefore, physiological saline can cross relief valve 202B and flowed towards converter 270.By so making to be full of physiological saline in each pipeline, the bubble in pipeline can be discharged To outside.

Then, as shown in fig. 6, releasing the pressing of the movable link 203 to the relief valve 202A of physiology brine line 206, So as to which the state of relief valve 202A and downstream side flowing will not be crossed as physiological saline.In addition, in order to not make contrast agent exist Converter 270 side is flowed into ensuing contrast agent injection process, also release to the relief valve 202B of converter pipeline 207 can The pressing of dynamic component 203, so that the state that will not be crossed relief valve 202B as contrast agent etc. and be flowed to transducer side.

Then, the piston drive mechanism of injector 206 is acted and press the piston component of syringe 251, thus, such as scheme The contrast agent in syringe 251 is extruded towards patient like that shown in 7.Specifically, contrast agent by contrast agent pipeline 204, Base portion pipeline portion 210, Patient line 208 and conduit (not shown) and be delivered to the defined shooting position in patient's body (work It is coronary artery of heart etc. for an example).

Then, after injection contrast agent is finished and the residual pressure in loop is fully reduced, as shown in Figure 8 Press the relief valve 202A of physiological saline pipeline 206 movable link 203 and valve is opened wide again.In the same manner as above-mentioned operation, At the moment, being applied with authorized pressure to physiological saline as the pressure-producing part 224 using inflating bag, (such as 300mmHg is left It is right) state, therefore, as shown in figure 8, physiological saline is sent in base portion pipeline portion 210 and Patient line 208 and rinses and make Shadow agent.

Then, as needed, as shown in figure 9, also opening wide the relief valve 202B of converter pipeline 207, thus, physiology is made Salt solution flows to the region that transducer side is leaned on than relief valve 202B, is also rinsed in the region using physiological saline.

Afterwards, as shown in Figure 10, the pressing of the movable link 203 to the check-valves 202A of physiology brine line 206 is released, So as to the state that will not be crossed valve 202A as physiological saline and be flowed to the side of base portion pipeline portion 210.Thus, release and be located at than base The pressurized state of the physiological saline of the position of the downstream of pipeline portion of portion 210.As a result, as shape as shown in Figure 10 State：Blood path is set up via Patient line 208 and converter pipeline 207, blood pressure can be detected using converter 270.

As described above, the fluid loop suit 201 of present embodiment includes contrast agent pipeline 205, physiological saline Pipeline 206, syringe pipeline 204, Patient line 208 and base portion pipeline portion 210, and in contrast agent pipeline 205 and base portion The connecting portion between connecting portion and physiological saline pipeline 206 and base portion pipeline portion 206 between pipeline portion 210, which is provided with, to be used to incite somebody to action The flowing of liquid is limited to double linked one-way valve 215A, 215B of prescribed direction.Thus, operator can be without being used Implement suction (Fig. 3) of the contrast agent into syringe 251 in the case of the operation of hand switching three-way plug valve well and connect down The operation such as submitting (Fig. 4) of contrast agent come.

In addition, in the fluid loop suit 201 of present embodiment, relief valve is provided with physiological saline pipeline 206 202A.Especially, relief valve 202A is to switch the relief valve being opened and closed by pressing movable link 203, therefore, with such as three The relief valve of the logical such type for switching opening and closing by torque rod of plug valve is compared, it is easy to switch over action.It is specific and Speech, with being easy to by make use of the switch of the drivers such as motor automatically to switch over such advantage.Also, with torque rod Situation compare, the movement of such movable link 203 can be implemented in a short time.In addition, for such as present embodiment that Sample using relief valve 202A, 202B function in itself come the structure of inaccessible stream in the case of, with for example flattening pipe and choking flow The structure on road is compared, and can more reliably carry out occlusion.

Also, in the structure of present embodiment, due to relief valve 202B can be used to carry out inaccessible reformer line well Line 207, therefore, in the case of the injection of high pressure as cardia catheterization is carried out, is also prevented from the liquid of high pressure Body flows into the side of converter 270, and then can prevent the breakage of converter 270, damage in possible trouble.

As an example, the fluid loop suit 201 of present embodiment can also be by contrast agent pipeline 205, physiology salt Water pipeline 206, syringe pipeline 204, converter pipeline 207, Patient line 208 and base portion pipeline portion 210 are used as a whole set of And it is disposable.That is, fluid loop suit 200 can also be used for multiple times, but for the purposes such as infectious disease are prevented, can also It is after to patient's use, to be replaced by new fluid loop suit 201.In this case or, also include Including the drop chamber 233,233 one of (can also only including wherein) of physiological saline pipeline 206 and contrast agent pipeline 205 Ground is used as disposable.

In addition, the fluid loop system of present embodiment is the system that 200 are set with using aforesaid liquid loop, the liquid is returned Road system includes：Injector, it is used to carry syringe 251 to carry out the suction and injection (submitting) of liquid；And switch 300, it is used for the opening and closing for automatically switching the defined pipeline of fluid loop suit 200.Using such system, operation technique Person suitably carries out contrast agent and the one of physiological saline in the case of can need not switching over the operation of threeway plug valve The injection action of row, as needed, additionally it is possible to automatically carry out all processes.

The present invention is not limited to the embodiment of described above.For example, as the structure for extruding physiological saline, can also Inflating bag is substituted, and uses the tube pump (Japanese for continuously extruding flat tube and making the physiological saline in pipe be flowed to prescribed direction：チ ューブポンプ).Or, it can use and physiology is repeated by moving back and forth the piston component of small-sized syringe The device of suction and the extrusion of salt solution, the device can also be the device using cam mechanism and force application component (such as spring).

One specific example of relief valve

Specifically, under relief valve 202A, the 202B that can be used in Fig. 1 fluid loop system 200 can also be State such relief valve.In addition, below, 11~Figure 19 of reference picture illustrates a configuration example of relief valve, but the present invention is not limited In following processes.In addition, below, will be equivalent to relief valve 220A, 220B valve as " check valve 1 " is illustrated.Movable structure Part 223 is equivalent to " movable pin 60 ".

In addition, the check valve shown in Figure 11~Figure 19 is used for the shape to only allowing the check valve that decoction is moved to a direction State, as Fig. 1 relief valve, can be used for complete with allowing that the opening-wide state that decoction is moved to both direction is switched over The blocked state of the full movement for blocking liquid and allow that (direction that liquid flows takes for opening-wide state that liquid is moved to both direction Certainly in the pressure differential of liquid) switch over.

The check valve 1 of present embodiment shown in Figure 11 is mainly used in therapeutic medical fluid loop.Especially, the list There is higher pressure-resistant performance to valve 1, such as cardia catheterization can be applied to.As shown in Figure 11, Figure 12, check valve 1 is wrapped Include：Shell 50, it constitutes valve chamber 10；Discoideus valve element 25, it is configured in the valve chamber 10；Movable pin 60, it is can move Dynamic mode is maintained in a part for shell 50；And lid 70, it is installed on shell 50 in the way of covering the movable pin 60.

The check valve 1 is connected with supply pipe P1 and discharge pipe P2.Substantially, check valve 1 only allows that decoction automatically supplies pipe P1 flows towards discharge pipe P2, only allows that decoction flows to both direction during movable pin 60 is pressed.In addition, liquid medicine flow Direction depend on pipe P1, P2 in decoction pressure, therefore, in authorized pressure, also can be except above-mentioned flowing Flow direction beyond direction.As an example, as hydraulic pressure of the hydraulic pressure higher than P1 sides in P2 sides under the conditions of, do not having Press in the state of movable pin 60, decoction does not flow, only during movable pin 60 is pressed, decoction is from P2 sides towards P1 effluents It is dynamic.

As an example, shell 50, movable pin 60, lid 70 and each part of supporting member described later 21 can be resins Formed products, but it is not limited to this.

As shown in Figure 11, Figure 12, shell 50 have the housing main body 40 that is connected with supply pipe P1 and with discharge pipe P2 phases Closing (closure) component 30 of the substantially cylindrical shape of connection.When closure member 30 is installed on into housing main body 40, two Valve chamber 10 is formed between individual component.The inlet portion 11 for decoction to be supplied into valve chamber is formed with the upstream side of valve chamber 10 (Figure 12), the export department 13 for decoction to be sent out to outside is formed with the downstream of valve chamber 10.

Valve chamber 10 is substantial transverse cylindric such shape, and the downstream of the valve chamber 10 turns into towards the side of export department 13 Go and sectional area tapers into such taper.The valve element 25 for inlet portion 11 to be opened and closed is configured with valve chamber 10 (referring to aftermentioned), the supporting member 21 (referring to aftermentioned) for pressing the valve element 25.

Reference picture 15 describes the shape of housing main body 40 in detail.As shown in figure 15, housing main body 40 has：Cylindrical shape (one Individual example) main part 41, it is used to constitute valve chamber 10；And the pipe maintaining part 48 being connected with supply pipe P1, pipe holding Portion 48 is the cylindrical portion thinner than being provided thereon the main part 41 of trip side.It is fixed that the material of housing main body 40 is not limited, and it was both Can be it can be seen that inside valve it is such have can perspectivity material or the material of non-perspectivity.

Supply pipe P1 end is inserted into the inside of pipe maintaining part 48.In order to rise even if hydraulic pressure pipe will not also taken off Fall, be connected to supply pipe P1 in pipe maintaining part 48 with sufficient intensity using known method.In order to workability Supply pipe P1 is connected well, and one or more ribs are formed with pipe maintaining part 48.In this example embodiment, on the top of cylindrical portion 49 Each 1 rib 49f, 49f extended radially is respectively formed with bottom.

As shown in Figure 15, Figure 16, main part 41 is cylinder is set to laterally such shape, and valve element is configured with inside it 25 (reference pictures 11) and the supporting member 21 (for above-mentioned component, referring to aftermentioned) for pressing the valve element 25.As shown in figure 16, The inlet portion 11 for supplying decoction is formed with a part of wall 41h in main part.

In this example embodiment, on inlet portion 11, provided with the recess 11a (ginsengs formed in the way of making wall 41h local dents According to Figure 14 and Figure 16), recess 11a is connected with stream 11c.As shown in figure 14, the side between recess 11a and stream 11c Boundary is formed in part with inclined plane 11b.In addition, as shown in figure 16, recess 11a contour shape is circular, as an example, 3 rib 43Ra are formed with recess 11a.Above-mentioned rib 43Ra is formed as radial in mutual equally spaced mode.Rib 43Ra is played Support the effect (referring to aftermentioned) on the preceding surface of valve element 25.

As shown in figure 16, multiple supporting ribs of the peripheral part for supporting valve element 25 are formed with around inlet portion 11 43Rb.As an example, 6 supporting rib 43Rb are configured to radial in mutual equally spaced mode.

As shown in figure 11, as an example, valve element 25 is discoideus and (illustrates not having again below to scratch with flexible The valve element of property).The thickness of valve element can be uniform.The material of valve element can be such as organic silicon rubber, as an example, The hardness of the material of valve element is in the range of 5 °~90 °, preferably in the range of 40 °~80 °, further preferably at 60 °~80 ° In the range of.Valve element 25 has the diameter for being capable of the inaccessible degree of inlet portion 11.

As shown in figure 18, there is the frame 27 of ring-type for pressing the supporting member 21 of valve element 25, be configured at the center of frame 27 The press section 23 of the general conical (cone shape) in portion and press section 23 and frame 27 are connected and supported 4 of press section 23 (example) supporting arm 26.Press section 23 is protruded towards the direction of valve element 25, and push valve is carried out in press section 23 by its top ends Near the central part at the back side of core 25.

It is unfettered near the peripheral part of valve element 25 using such bearing method based on supporting member 21, therefore energy It is enough freely to carry out elastic deformation.Substantially, valve element 25 blocks inlet portion 11 and prevents decoction from valve as shown in Figure 12 Flowed towards supply pipe P1 sides room 10.On the other hand, in the case where automatically supplying pipe P1 supply decoctions, in the work of the hydraulic pressure of decoction Make the peripheral part elastic deformation of valve element 25 under, thus allow that decoction is flowed into valve chamber 10.

Again return to the explanation of supporting member 21.When as shown in figure 18, in order to be mixed into bubble in valve chamber The bubble can be discharged to outside valve chamber well, the shape of each several part of supporting member 21 is set to radiussed or taper.Specifically For, it is formed with gentle rounded shapes in the flow direction upstream side of each supporting arm 26.In addition, for frame 27, also as more Gone and the thinner such cone-shaped of the thickness of slab of frame towards flow direction upstream side.Using such structure, with supporting arm 26, frame 27 Cross sectional shape compared for the situation of simple rectangle, with being easy to make the such advantage of bubble downstream side flowing.

In addition, as the operation for removing bubble removing, it is fixed to be not limited, for example, it is also possible to be, so that discharge pipe P2 sides are positioned at upper The mode of side lifts whole check valve 1, and user lightly beats valve using hand or defined instrument and bubble is rushed for into downstream Side.In the case where the material of shell 40 is transparent, can visually confirm whether remain bubble in shell well.And And, export department 13 is formed towards in the downstream of valve chamber 10 as in the present embodiment and is gone and taper that sectional area is tapered into In the case of, bubble can be made to rush for outside well.

As the variation of said structure, it is rounded shapes that can not also make each supporting arm 26, but makes each supporting arm 26 Cross sectional shape more to be gone and the thinner such taper of thickness of slab towards flow direction upstream side.Alternatively, it is also possible to be set on frame 27 Put rounded shapes.

Referring again to Figure 12.Supporting member 21 is clipped between housing main body 40 and closure member 30 for its peripheral part and obtained The structure of supporting.Using such structure, it is not necessary to be provided for the special part or construction of fixed bearing component 21.In addition, In order to prevent that supporting member 21 from rotating in the valve chamber 10, as shown in Figure 15, Figure 18 or, the shape on the peripheral part of frame 27 Into projection 27a, projection 27a is set to be fastened with the length direction groove 43g in housing main body.

In addition, in order to not make bubble residence in valve chamber 10, in the present embodiment, the end shape of movable pin 60 also has There is defined shape, this is described below.

Then, illustrate movable pin 60 and be configured with the formations of movable pin 60.As shown in figure 12, it is configured with movable pin 60 Receiving space 15 by housing main body 40 outer cylindrical portion 45 (referring to aftermentioned) and be installed on the lid 70 of outer cylindrical portion 45 and formed.

As shown in Figure 12, Figure 19, lid 70 is on the whole substantially bottomed tube, in this example embodiment, with flat upper table The cylindric surrounding wall portion 73 that face 71 and the periphery from upper surface part 71 are extended downwardly out.1 is provided with upper surface part 71 Opening portion, the part of movable pin 60 through the opening portion and it is protruding to the outside.As shown in figure 19, in the inner surface of surrounding wall portion 73 It is formed with convex portion 76 (as an example, cross sectional shape is rectangle).In this example embodiment, it is provided with each 1 in the both sides of surrounding wall portion 73 Individual convex portion 76.

In the present embodiment, in order to apply higher pressure even if to decoction when in use and lid 70 and movable pin 60 It will not fall off, lid 70 is installed on housing main body 40 with sufficient intensity.As the method for fixing lid 70, for example, can be with Using bonding agent or welding etc., but preferably mechanical fixing means.As mechanical fixing means, for example, it may be The convex portion of one component is embedded in the recess of another component, threaded portion is threadedly engaged or utilized each other screw element Or additional fixture as steady pin is come the method for fixing two components.

In the present embodiment, as an example, it is configured to, the convex portion 76 (reference picture 19) of the inner side of lid 70 is with forming Fastened in the groove 45g (reference picture 14) of the L words of the periphery of the outer cylindrical portion 45 of shell., can be with using such fixed form Sufficient intensity and positional precision fixes lid 70 well.In addition, if desired, can also by lid 70 be installed on outer cylindrical portion 45 it Further fixed using bonding agent etc. afterwards.

Then, movable pin 60 is illustrated.As shown in figure 17, as an example, movable pin 60 has circular cross sectional shape Axle portion 61 and be formed at axle portion 61 a part flange part 67.Can have and valve in tip side (lower end side) formation of axle portion 61 The service portion 63 that core 25 is abutted against.

As shown in figure 14, service portion 63 is formed as wedge in the way of the peripheral part of valve element 25 can be made to be lifted from wall 41h Shape.Specifically, service portion 63 has the protuberance 63a entered between valve element 25 and wall 41h and is formed at the protrusion The flat part 63b in portion 63a downstream.Preferably, the flat part 63 is configured to, movable shown in the dotted line such as Figure 14 In the state of pin 63 is above, the flat part 63 is located at the face same with the upper surface of valve chamber 10 or the upper surface than valve chamber 10 It is prominent.Even if when the tabular surface 63 is located at the position than the upper surface depression of valve chamber, bubble is possible to be stranded in the part, but By using said structure, can making bubble, downstream side is flowed well.

Referring again to Figure 17, it is formed with axle portion 61 for endless groove 61c embedded O-ring seals R1 (referring to aftermentioned). Flange part 67 is formed at the position than endless groove 61c by the top, and the bullport of 4 circular shapes is formed with flange part 67 67a.The upper end of axle portion 61 is the part pressed for user or defined mechanism, and the corner of the periphery of upper end is round Shape.

As shown in figure 5, movable pin 60 is configured in the outer cylindrical portion 45 of housing main body 41.In being formed with the inner side of outer barrel 45 Cylinder portion 46, the inner cylinder portion 46 is made up of cross sectional shape for 4 wall flaps 46a of circular shape.When movable pin 60 is arranged at into outer barrel When in portion 45, each bullport 67a of movable pin state is passed through as each wall flaps 46a.Each wall flaps 46a is used as guiding movable pin 60 Motion in the vertical direction component and play a role, and play the effect that movable pin 60 rotates around central axis of preventing.

The movable pin 60 constituted as described above is configured to move up and down as shown in Figure 12 and Figure 13.First, say Bright movable pin 60 is located at Figure 12 of the 1st position (top position) state.

In this condition, the lower section for the flange part 67 for being configured at movable pin 60 helical spring 68 force effect Under, movable pin 60 is lifted upward, so that the upper surface of flange part 67 presses on the inner surface of lid 70.Flange part 67 is formed as The diameter of the opening portion of lid 70 is had a diameter larger than, therefore, movable pin 60 will not be deviate to outside lid.In the present embodiment, flange The upper surface in portion 67 and the inner surface of lid 70 are that tabular surface and two components are face contact, therefore, lid 70 can equably by To the power from flange part 67.

When movable pin 60 is located at 1 position, the service portion 63 of movable pin 60 leaves valve element 25, the inaccessible entrance of valve element 25 Portion 11.In this condition, check valve 1 is as only allowing that decoction automatically supplies the check valve of pipe P1 lateral discharge pipe P2 sides flowing and play Effect.In addition, as described above, the direction of liquid medicine flow depend on pipe P1, P2 in decoction pressure, for example, the liquid in P2 sides In the case that pressure in the fluid loop as the hydraulic pressure of P1 sides higher than valve 1 is used, the state not being pressed in movable pin 60 Lower decoction does not flow, and decoction flows from P2 sides towards P1 sides only during movable pin 60 is pressed.Present embodiment it is unidirectional Valve 1 is not such check valve that the flowing of decoction is defined to specific direction.

On the other hand, in fig. 13, movable pin 60 is pressed downwards and moves on to the 2nd position (lower position).Movable pin 60 overcome the force of helical spring 68 while being pressed, in the state of movable pin 60 moves on to Figure 13 position, movable pin 60 service portion 63 enters between valve element 25 and wall 41h (Figure 14) and makes the peripheral part elastic deformation of valve element 25, thus makes Inlet portion 11 is opened wide.As a result, decoction can be made to be flowed to both direction, (decoction is depended in P1, P2 to which direction flowing Hydraulic pressure).When stopping pressing movable pin 60 in the state of Figure 13, as following state：In the force of helical spring 68 Under effect, movable pin 60 again returns to the 1st position, and valve element 25 returns to original shape and inaccessible inlet portion 11, and valve 1 is as single Played a role to valve.

As described above, in the check valve 1 of present embodiment, by pressing movable pin 60, it is capable of the company of appropriate switching valve Logical state.The method of pressing movable pin 1 is not particularly limited, for example, both can be user's hand or the instrument as defined in To press movable pin 60 or press movable pin 60 by defined mechanism.

Reference picture 12, Figure 13 add the assembled state of explanation valve, and O-ring seals R1 is embedded in into movable pin 60, thereby, it is possible to Ensure the sealing between movable pin 60 and inner cylinder portion 46.In the case of for this spline structure, by from O-ring seals R1's Power and radially towards the internal applying power of cylinder portion 46 laterally, but in the present embodiment, as shown in figure 13, be configured to, constitute in Each wall flaps 46a in cylinder portion 46 top insertion is formed on the locking groove 71g of the inner surface of the upper surface part 71 of lid 70.Thus, The tip side extension of inner cylinder portion 46 is prevented from, as a result, when in use, can also keep being based on O-ring seals R1 well Sealing.

The specific material for constituting each part of check valve 1 is not particularly limited, and is used as an example, movable pin 60 It can be the good polyacetal resin of sliding (POM).As an example, the part for constituting shell 50 can also be poly- carbonic acid Ester resin (PC).In addition, as needed, can also on the outer peripheral face (especially, the face relative with wall 41h) of valve element 25 shape Into fine convex-concave profile.

As described above, the check valve 1 of present embodiment can temporarily release work by moving movable pin 60 For the function of check valve.Also, the movable pin 60 is configured in receiving space 15, side of the movable pin 60 will not deviate from from lid 70 Formula is constituted.Thus, even if the pressure of decoction rises and extrudes such direction application to by the pin to movable pin 60 when in use There is larger power, also the power can be born by lid 70 via flange part 67, therefore movable pin 60 will not fall off.Therefore, this implementation The check valve 1 of mode can tackle the high pressure injection of decoction well.

In addition, in the present embodiment, lid 70 is fixed on shell 50 using the fixed component (45g, 76) of machinery.Cause This, compared with the situation of lid 70 is for example fixed using only bonding agent, can well be consolidated with sufficient intensity and positional precision Determine lid 70.

In addition, in the present embodiment, recess 11a as shown in Figure 16 is formed with the inlet portion 11 of valve chamber 10, because This, only by making valve element 25 slightly deform, it becomes possible to reliably open wide inlet portion 11.That is, in recess 11a as no formation In the case of, in order that inlet portion 11 is opened wide, it is necessary to make valve element 25 be deformed into the degree for making the stream 11c in center unlimited.With this Relatively, using the structure of present embodiment, as shown in figure 16, at the time of the peripheral part deformation of valve element 25, as recess 11a quilts Open wide and state that the stream 11c that is connected with recess 11a is also opened, therefore, it is possible to by the slightly deformation of valve element 25 come Carry out the opening and closing of inlet portion 11.

On the other hand, in the case where being so provided with recess 11a, the hydraulic pressure at the back side of valve element 25 is put on when using valve Problem can be turned into.I.e., although according to using valve 1, the problem is also different in which type of fluid loop, but can set Expect：Even if, also can be by the presence of the hydraulic pressure in that case of the hydraulic pressure in valve chamber 10 becomes very high when in use Valve element 25 presses on recess 11a sides.In this case, if being not provided with supporting rib 43Ra in recess 11a, it is likely that turn into Valve element 25 is bonded on recess 11a such state.In this condition, though by the service portion 63 of movable pin 60 be pressed into valve element 25 with Between wall 41h, there is also the possibility that inlet portion 11 can not be made fully to open wide.If in this regard, as present embodiment Supporting rib 43Ra is formed with recess 11a, then is prevented from being bonded on recess 11a such state as valve element 25, so as to It is enough that inlet portion 11 is opened and closed well by operating movable pin 60.In addition, supporting rib 43Ra may not be defined in Figure 16 institutes Show such shape, the projection of arbitrary shape protruded from recess 11a bottom can also be formed as.

More than, with reference to the accompanying drawings of one embodiment of the present invention, but the present invention is not limited to the above, and energy Enough carry out various changes.

For example, this concludes the description of peripheral part of the valve element 25 with flexible and valve element 25 can carry out the example of elastic deformation, But valve element 25 can also be without flexibility.For example, it is also possible to be, valve element is the component without flexible tabular, and is configured to It is enough that displacement between the position of inlet portion 11 is opened wide in the position of (a) inaccessible inlet portion 11 and (b).Pressing the feelings of movable pin 60 Under condition, the position of the spool displacement to (b) thus opens wide inlet portion 11.In this case, supporting member 21 can also be constituted For at least its press section 23 is flexible, flexibly shrinks and allow the displacement of above-mentioned valve element by the press section.

The shape of the press section of supporting member is not limited to cone, for example, can also be truncated cone-shaped, by being set to this The shape of sample, can press valve element with bigger area.

If lid 70 is fixed on into shell with sufficient intensity in the way of when using check valve 1 deviating from movable pin 60 50, then the shape of lid 70 be not particularly limited, the shape beyond bottomed tube can also be set to.

As movable pin 60, if by mobile so that the component that valve element 25 is acted from outside power, then shape It is fixed to be not limited, it is possible to have the shape beyond pin-shaped shape.Pin-shaped shape is set to as in the present embodiment in movable pin 60 In the case of, its cross sectional shape is not limited to circular or rectangle and polygon etc..In addition, as preventing movable pin The construction of 60 abjection, in the above-described embodiment, the upper surface of lid 70 is connected to exemplified with the flange part 67 of movable pin 60 Construction, but for preventing that the construction of abjection is not limited to flange or the simple projection located at the periphery of movable pin etc.. In addition, in order that user is easy to, with hand pressing movable pin 60, additional lid can also be provided with the protuberance of movable pin 60 (not shown).

In the above example, shell 50 is made up of housing main body and closure member 30, but as long as shell is to form valve chamber 10 Component, then its parts count, shape are not limited fixed.

Valve element 25 is not limited to the contour shape of circle, it is possible to have the contour shape such as ellipse, rectangle, polygon. In addition, more than, it is contemplated to the thickness of valve element 25 is constant valve element, but the thickness of valve element 25 can also be according to the difference at position It is different.

The other functions of valve

Also, the check valve of the other embodiment of the present invention can also be component as following.

A kind of band opens wide the check valve of function, wherein, the check valve that the band opens wide function includes：Shell, its composition has The valve chamber of the entrance and exit of liquid；Valve element, it is configured in above-mentioned valve chamber in the way of inaccessible above-mentioned entrance, and in order that should Entrance opens wide and is configured to elastic deformation or being capable of displacement；Movable link, it is maintained at above-mentioned in the way of it can move On shell, above-mentioned valve element is connected to by mobile, so that the valve element elastic deformation or displacement, when the above-mentioned movable link of pressing When, the decoction of the amount corresponding with the amount of movement of the above-mentioned movable link is forced into outside valve chamber via above-mentioned outlet.

Reference picture 13 illustrates the valve.The valve is configured to, will be relative with the amount of movement of movable pin 60 when pressing movable pin 60 The a small amount of decoction answered is extruded from valve chamber 10.On the other hand, when stopping pressing movable pin 60, movable pin 68 is in spiral shell Return to original position in the presence of rotation spring 68, and the temporary deformity of valve element 25 and medicine can be supplemented into valve chamber 10 again Liquid.So, noted by the function of operating movable pin 60 and extrude a small amount of decoction especially during such as cardia catheterization Enter effective during contrast agent.That is, in this checking process, the intravascular of patient is inserted a catheter into, but have in check valve In the case of function as described above, a small amount of contrast agent can be exported from the top of conduit, as a result, for example, can be good Implement the confirmation which position is carried out being currently located to catheter tip in patient's body in ground.

Pump installation on PIT formulas

The present invention decoction circuit system in, can also without using physiological saline pressure-producing part 224 (Fig. 1), and Use pump installation 226 as Figure 20.In fig. 20, it illustrate only a part for decoction circuit system.For than three-way cock The structure of valve 213 downstream, can be used and Fig. 1 identical structures.

The pump installation 226 is the pump installation of the disclosed such mode of such as Japanese Patent No. 3626264.Pump installation 226 include be used for carry small-sized syringe 226a main part 227 and for making syringe 226a piston component advance, The piston drive mechanism (not shown) of retrogressing.

In order to realize the conveying of physiological saline using the pump installation 226, in Figure 20 structure, the part in loop be by Obtained from Fig. 1 loop change.Specifically, check valve 215A, 215B are substituted and has used connector 215C, 215D, Check valve V-1 is configured between two connectors.In addition, as shown in Figure 20 warning triangle, check valve V-1 is configured to allow The decoction downstream flowing of side and be impermissible for flowing of the decoction to opposite direction.It is same with check valve V-1, also according to the three of Figure 20 Flowing of the direction of corner mark to determine other check valves limits direction.

On the pipeline 205 for connecting connector 215C and contrast agent chamber 221, from close to the side of chamber 221 Connection connector 234, drop chamber 233, air borne sensor 231 and check valve V-2 are configured with successively.In addition, above-mentioned The configuration of composed component 234,233,231 can be changed suitably.

The pipeline 206 that connector 215D and physiological saline chamber 223 are connected on the way is divided into two pipelines, therein one Individual pipeline is pipeline 206, and another pipeline is directed towards the pipeline 209 that pump installation 226 is gone.As shown in figure 20, match somebody with somebody on pipeline 206 It is equipped with two check valves V-3, V-4.

1 check valve V-5 also is provided between connector 215D and threeway plug valve 213.In addition it is also possible to omit list To valve V-5.In the case of provided with check valve V-5, the loop than the check valve downstream can also be regard as disposable thing Product.Or, no matter whetheing there is check valve V-5, it regard the loop than connector 215D downstream as disposable.

Alternatively, it is also possible to be, drug liquid tube (not shown), the court via the drug liquid tube are connected with threeway plug valve 213 Decoction is injected to patient.

In the Figure 20 constituted as described above decoction circuit system, make small-sized note by making pump installation 226 work Emitter 226a piston component, which is retreated, to be moved, so as to which following operation is repeated：(i) from chamber 223 to syringe 226a Interior suction physiological saline and (ii) spray physiological saline from small syringe 226a.Thereby, it is possible to inject physiology salt to patient Water.

In addition, in Figure 20 structure, as an example, provided with the weight for measuring physiological saline chamber 223 Load sensor 223S.Control device (not shown) is changed according to load sensor 223S output valve or by the output valve Whether it is that (that is, whether the surplus of physiological saline is a certain base below defined setting value that the value is judged for the value after load Quasi- value is following).Also, in the case where judging for below defined setting value, defined warning is sent to operator (such as point bright light, display message, output sound or voice).

Certainly, in the decoction circuit system of Fig. 1 embodiment, load sensor as described above can also be used 223S。

, can be in point as an example in order to omit air borne sensor 231 in such as Figure 20 decoction circuit system Using the connector of such valve element with floating disclosed in Japanese Unexamined Patent Publication 9-117505 in drop chamber, thereby, it is possible to Prevent that air is mixed into Patient line side.Alternatively, it is also possible to be, judge whether drop chamber becomes according to the position of the valve element Sky, is becoming the control of space-time progress stopping injection etc..

Figure 20 decoction circuit system is the system being set with following fluid loops.A kind of therapeutic medical fluid loop set Dress, it is applied to angiogram, wherein, fluid loop suit includes：Contrast agent pipeline, it is connected with contrast agent chamber； Physiological saline pipeline, it is connected with physiological saline chamber；Syringe pipeline, it is connected with syringe；Patient line, it is used In conveying contrast agent or physiological saline towards patient；And base portion pipeline portion, it is connected with above-mentioned each pipeline, and is made with above-mentioned Shadow agent pipeline and above-mentioned physiological saline pipeline connect into T-shaped respectively, also, fluid loop suit also includes：A, the 1st valve portion Part (V-1, V-2), is consisted of, and (i) makes in the case where liquid has been aspirated by the upstream side towards above-mentioned base portion pipeline portion Shadow agent is flowed to from contrast agent pipeline in above-mentioned base portion pipeline portion, and (ii) is in liquid by the upstream side court from above-mentioned base portion pipeline portion In the case that downstream side has been extruded, liquid is flowed in the direction by the valve member；B, the 2nd valve member (V-1), in liquid In the case that body has been extruded from the upstream side in above-mentioned base portion pipeline portion towards downstream, the 2nd valve member (V-1) allows liquid Flowing in the direction, and it is impermissible for reverse flowing；And c, the 3rd valve member (V-3, V-1), utilizing for conveying life Manage salt solution part and from above-mentioned physiological saline chamber convey physiological saline when, the 3rd valve member (V-3, V-1) allows physiology Salt solution and is impermissible for physiological saline to the flowing of syringe tube line side to the flowing of Patient line side.

On roll-type pump installation

As the part for decoction chamber being pressurizeed and being sent out decoction, rolling pump 470 as also can using Figure 21. As an example, the pump 470 has a pair of the pressing members 471,472 configured in the way of Clip cavity 223.By make by Press a pressing member in component 471,472 close to another pressing member, can press between two components 471,472 Chamber 223, thereby, it is possible to which the decoction inside chamber 223 is extruded.

For specific construction, appropriately designed or even change can be carried out, as an example or, two structures Part is connected at articulated section 474, and a component can be rotated relative to another component.In order that a component is close to another One component, can also be provided with roller 476.Roller 476 is configured to, while (can both set drive around pivot 476a rotations Dynamic source, can also be not provided with driving source), moved downwards like that shown in arrow as shown on one side, so that by the court of pressing member 471 Pressed to another component 472.

On pump installation in the form of piston

Also, it can also use pump 480 in the form of piston as Figure 22.The pump 480 has two injections being connected in series Device 481,486, the top ends of the syringe 481 in front are connected with pipeline 209 (reference picture 20).Syringe 481 in front Mobile shorter pad 482a can be slided by being inside configured with, and projection 485 is formed with the pad 482a back side.The projection 485 The effect limited the movable range when pad 482a is rearward moved is played, but need not necessarily create the projection 485.

The top of the syringe 486 at rear slenderly forms and is inserted into the sealing structure in the syringe 481 in front The through hole formed on part 482b.Thus, it is configured to, the liquid in the syringe 486 at rear or gas can be delivered to front Syringe 481 in and aspirate the liquid or gas in the syringe 481.In addition, on the pump 480, being additionally provided with for making The driver part (not shown) of the piston component advance and retreat movement of the syringe 486 at rear.

In the decoction circuit system of the present invention, as described above, the pump installation 480 of type as Figure 22 also can be used To implement the suction and injection of physiological saline.

The other structures of relief valve

As Fig. 1 relief valve 202A, 202B, the relief valve with structure as Figure 23 can also be used.In addition, will It is noted that in Figure 23 (and Figure 24 described later), schematical description has been carried out to a part of structure.

Figure 23 relief valve 401A has as component, i.e., hollow main component 411 and the main body for constituting shell 410 The lid structure of the pipe connecting elements 412 that the bottom of component 411 is connected and the upper end opening portion for inaccessible main component 411 Part 413.In addition, being configured with the shaft component configured in the way of it can be moved upward with lower section in the inside of main component 411 425.Provided with two containment members 428,429 on shaft component 425, in addition, being formed with flange in a part for shaft component 425 Portion 425f.

Shaft component 425 is exerted a force (Figure 23) upward by helical spring S1, in this condition, and flange part 425f is pressed against sealing Component 429.In this condition, fluid will not be from the lower end opening portion 412a of connecting elements 412 towards the side of main component 411 Opening portion 411a (or its opposite direction) flows.

On the other hand, when the end of the shaft component 425 to being protruded upward from the central portion of The lid component 413 is pressed When, flange part 425f can be moved downwards, therefore open wide the stream (detailed construction is not shown) of fluid, and thus, fluid can Flowed from the side opening portion 411a (or its opposite direction) of lower end opening portion 412a towards the main component 411 of connecting elements 412 It is dynamic.In addition, for the stream of fluid, for example, it is also possible to by the length on the peripheral part of shaft component 425 along shaft component 425 The groove that direction is formed forms a part for stream.

As described above, in the decoction circuit system of the present invention, relief valve 401A as Figure 23 can also be used.

In addition to this it is possible to use relief valve 401B as Figure 24.Figure 24 relief valve 401B has as composition The The lid component of the component of shell 410, i.e., hollow main component 411 and the upper end opening portion for inaccessible main component 411 413.The shaft component 425 configured in the way of it can be moved upward with lower section is configured with the inside of main component 411.In axle Component 425 is provided with 1 containment member 429 and O-ring seals R1.In the shaft component 425 protruded upward from The lid component 413 Upper end is provided with the pressing member 416 for being internally formed with stream.Pressing member 416 has the side for the gateway for constituting fluid Opening portion 416a.

Similarly, in the relief valve 401B so constituted, also in the state of no pressing shaft component 425, in spiral In the presence of spring S1 force, flange part 425f is pressed against containment member 429, as a result, fluid will not be from lower end opening portion The side opening portion 416a (or its opposite direction) of 411a towards pressing member 416 flows.On the other hand, when by gland member axle During component 425, open wide the stream (detailed construction is not shown) of fluid, thus fluid can flow.

Other structures

More than, with reference to the accompanying drawings of the present invention an example, but the present invention circuit system in can apply with Toward known various constructions, device, equipment.For example, in order to prevent bubble inject patient, can also loop arbitrary position Set and be referred to as octopus pipe (Japanese：タ Us pipe) construction., in the structure of fig. 1, can also be in connector as an example Octopus pipe is set between 217 and air borne sensor 232.In addition, " octopus pipe " refers to being internally formed as empty, octopus head Jut as portion (profile can have any shape), the bubble come is flowed for catching in fluid circuit.Thus, it is preferable to Prominent mode is configured above octopus Guan Yixiang verticals.In addition, in order to change the posture of octopus pipe, preferably octopus pipe is set Put the stable position of the direction of in circuit system, pipeline (pipe).

Description of reference numerals

1st, check valve；200th, fluid loop system；201st, fluid loop is set with；202A, 202B, relief valve；203rd, it is movable Component；205th, contrast agent pipeline；206th, physiological saline pipeline；207th, converter pipeline；208th, Patient line；209th, pipeline； 210th, base portion pipeline portion；213rd, threeway plug valve；215A, 215B, double linked one-way valve；215C, 215D, connector；223rd, physiology Salt water chamber；223S, sensor；226th, pump installation；226a, syringe；227th, main part；231st, 232, air borne sensor； 251st, syringe；260th, injector；270th, converter；300th, switch；301st, drive division；332nd, air borne sensor；401A、 401B, relief valve；410th, shell；411st, main component；412nd, pipe connecting elements；413rd, The lid component；428th, 429, containment member； 470th, rolling pump；476th, roller；480th, piston pump；481st, 486, syringe；V-1~V-1, check valve；S1, helical spring.

Claims (8)

1. a kind of therapeutic medical fluid loop suit, it is applied to angiogram, wherein,

Fluid loop suit includes：

Contrast agent pipeline, it is connected with contrast agent chamber；

Physiological saline pipeline, it is connected with physiological saline chamber；

Syringe pipeline, it is connected with syringe；

Patient line, it is used to convey contrast agent or physiological saline towards patient；And

Base portion pipeline portion, it is connected with above-mentioned contrast agent pipeline, physiological saline pipeline, syringe pipeline and Patient line, and T-shaped is connected into respectively with above-mentioned contrast agent pipeline and above-mentioned physiological saline pipeline,

Also, fluid loop suit also includes：

1st valve member, it is configured at the connecting portion between above-mentioned contrast agent pipeline and above-mentioned base portion pipeline portion, the 1st valve member It is configured to, (i), in the case where liquid has been aspirated by the upstream side towards above-mentioned base portion pipeline portion, contrast agent is flowed to from pipeline In above-mentioned base portion pipeline portion, the situation that (ii) has been extruded in liquid by the upstream side from above-mentioned base portion pipeline portion towards downstream Under, liquid is flowed by the 1st valve member to the upstream side from above-mentioned base portion pipeline portion towards the direction in downstream；

2nd valve member, it is configured at the connecting portion between above-mentioned physiological saline pipeline and above-mentioned base portion pipeline portion, the 2nd valve structure Part is configured to, in the case where liquid has been extruded from the upstream side in above-mentioned base portion pipeline portion towards downstream or in liquid quilt In the case that above-mentioned saline tube line side has been extruded towards the 2nd valve member side, liquid is to from above-mentioned base portion pipeline portion Flowed towards the direction flowing in downstream or to the direction from above-mentioned saline tube line side towards the 2nd valve member side upstream side It is dynamic；And

1st relief valve, it has movable link and is configured on above-mentioned physiological saline pipeline, for by making above-mentioned movable structure Part moves and above-mentioned physiological saline pipeline is opened and closed.

2. fluid loop suit according to claim 1, wherein,

Above-mentioned 1st relief valve is configured to, and in above-mentioned movable link by from the state of outside pressing, makes above-mentioned physiological saline upward State the flowing of base portion pipeline portion side.

3. fluid loop suit according to claim 1 or 2, wherein,

Fluid loop suit also includes：

Converter pipeline, its one end is connected with converter and the other end is connected with above-mentioned base portion pipeline portion；And

2nd relief valve, it has movable link and configured on the converter pipeline, for by making the 2nd relief valve Above-mentioned movable link moves and the converter pipeline is opened and closed.

4. it is set with according to fluid loop according to any one of claims 1 to 3, wherein,

Provided with drop chamber at least one pipeline in above-mentioned contrast agent pipeline and above-mentioned physiological saline pipeline.

5. a kind of fluid loop system, wherein,

The fluid loop system includes：

Therapeutic medical fluid loop suit according to any one of claims 1 to 4；

Injector, it makes this can will keep the syringe in the way of the syringe dismounting that the fluid loop is connected The piston component of syringe moves and carried out the injection and suction of liquid；And

Switch, it is used for the part for keeping aforesaid liquid loop, and with for making the above-mentioned of at least the above 1st relief valve The driver part of movable link action.

6. fluid loop system according to claim 5, wherein,

The above-mentioned driver part of above-mentioned switch has according to the driving source acted from outside control signal.

7. fluid loop system according to claim 6, wherein,

Above-mentioned driving source is motor.

8. the fluid loop system according to any one of claim 5~7, wherein,

Above-mentioned switch also has the air borne sensor for being used for detecting the bubble in above-mentioned Patient line.