CN206350855U - It convenient can recover only liquid structure and the transfusion device used - Google Patents

Abstract

The utility model belongs to medical instruments field, specifically related to a kind of only liquid structure that convenient can recover to use, including chamber, reservoir and orifice union, the liquid outlet of chamber is connected with the inlet opening of reservoir, provided with the only liquid for automatically controlling the keying of its liquid outlet in chamber, reservoir is cavity utricule, under external force, cavity volume in reservoir changes, after external force is eliminated, reservoir recovers to original state automatically, and orifice union is installed on the woven hose below the bottom liquid outlet or reservoir of reservoir.The utility model has further related to the transfusion device with above-mentioned only liquid structure.Automatic liquid-stopping effect can both be reached by the utility model, Rapid reversal can stop liquid status as needed again, recover normally to use, it is simple and convenient, it is safe and convenient to use, be conducive to the treatment to clinical patients.

Description

It convenient can recover only liquid structure and the transfusion device used

Technical field

The utility model is related to a kind of only liquid structure and transfusion device that convenient can recover to use, and belongs to medical instruments field.

Background technology

At present, when hospital carries out venous transfusion or blood transfusion to clinical patients, it is common to use disposable transfusion device, so, To preventing the cross-infection between patient from serving beneficial effect.However, using this disposable transfusion device, there is also not Foot part, i.e., using disposable transfusion device after liquid infusion-completed, because transfusion device does not have automatic hold function, liquid will be changed in time Body bottle or pulls out transfusion needle at (bag), and this problem can bring greatly workload and psychological pressure to medical personnel, once there is carelessness The situation that air can be caused to be entered by transfusion catheter in patient's body, can form aeroembolism, be brought greatly to patient when serious Potential safety hazard, is also unfavorable for the maintenance of doctor-patient relationship.

For problem above, in the market have developed many float valve classes and stop liquid delivery device, such as patent name in recent years For " intravenous transfusion device with precision transfusion regulator ", the Chinese patent that Authorization Notice No. is CN204181948U, devise Floating plug in kettle is dripped, for, by floating plug only liquid, preventing that liquid flow is empty after transfusion terminates so that gas enters in patient's body, but this Plant design excessively to idealize, stopper rod is long (length is 5cm) for leading below floating plug, and not only processing assembling produces difficulty, Er Qieshe Timing does not consider to stop during actual use that insertion tube after liquid passes by after depth that surface tension of liquid in its faying face causes sticks resistance Power and pipeline deformation with lead the friction effects that stopper rod is mutually extruded, the two can be caused not to be separated from each other smoothly, influence after It is continuous to use.

Therefore, while problem above is solved, it is contemplated that the operation released when stopping liquid status (is adjusted according to clinic Grind, typically using extruding, some parts of winding transfusion device) it may give and bulge etc. at pain discomfort or puncture is brought by transfusion person Harm, and avoid as far as possible.

Utility model content

The technical problems to be solved in the utility model is：Overcoming deficiency of the prior art, there is provided can be after only liquid Easily releasing stops liquid status, returned to normal condition and will not be to causing other uncomfortable (such as pain etc.) or injury by transfusion person Only liquid structure；Simultaneously there is provided the transfusion device for stopping liquid structure with this.

The only liquid structure, including chamber, reservoir and orifice union described in the utility model that convenient can recover to use, chamber The liquid outlet of room is connected with the inlet opening of reservoir, provided with the only liquid, reservoir for automatically controlling the keying of its liquid outlet in chamber It is cavity utricule, under external force, the cavity volume in reservoir changes, after external force is eliminated, reservoir recovers automatically To original state, orifice union is installed on the woven hose below the bottom liquid outlet or reservoir of reservoir.

Reservoir in the utility model can be the cavity utricule with certain elasticity being made of elastomeric material, should Cavity utricule both can be the utricule that homogeneous material is made or the component being made up of two or more material, only It can realize that reservoir restPoses i.e. after reservoir internal cavities stereomutation under external force, external force elimination Can.So, after only liquid closes the liquid outlet of chamber automatically, if want to disable stop liquid function (liquid allowed in chamber after It is continuous to be flowed out from liquid outlet), the liquid that need to be only blocked by orifice union in reservoir flows downwards, then extrudes reservoir, The liquid for making to have previously been stored in reservoir is up, make only liquid it is up in the presence of liquid, release stop liquid status, beat afterwards Open orifice union, you can fast quick-recovery is normally used, simple and convenient.In addition, in only liquid structure, at liquid In the state of more closing, therefore other pollution sources will not be introduced, it is safe and convenient to use.

It is preferred that, pass through pipeline connection between the described liquid outlet of chamber and the inlet opening of reservoir.It is of course also possible to Directly reservoir is fixedly connected with the outer wall of chamber, and ensures that the liquid outlet and the inlet opening of reservoir of chamber are corresponding up and down, The liquid in chamber is set to enter in reservoir.

It is preferred that, described only liquid is the float valve lifted with the liquid level height in chamber, and the float valve can be using single The density of one material is made less than the material of chamber indoor liquid, it would however also be possible to employ two or more different combination of materials system Into, but the averag density of float valve made from different materials have to be lower than the density of chamber indoor liquid.

In order to ensure stopping the only liquid effect of liquid, the utility model provides following several preferred schemes：

Scheme one：Only liquid is made of flexible sealing material, and only the bottom of liquid is engaged with the liquid outlet of chamber.

Scheme two：Only the bottom of liquid is provided with the sealing surface being engaged with the liquid outlet of chamber, and sealing surface is using flexible close Closure material is made.

Scheme three：Chamber inner bottom part is bright and clean region with the position that only liquid coordinates.

In practical application, scheme one and scheme three can be combined, scheme two and scheme three can also be combined, make to stop Liquid is preferably fitted with chamber inner bottom part, so that liquid is sealed, to reach preferably only liquid effect.

The form of orifice union in the utility model has following a variety of：

Orifice union can be on-off switch, and the on-off switch has connection and disconnects two gears, when being adjusted to disconnect gear When, liquid can be blocked and run downwards；

Orifice union can be flow control valve, and the flow control valve can be straight from design maximum continuous flow regulation To minimum discharge 0, when flow control valve is adjusted to minimum discharge, liquid stops flowing, is run downwards so as to block liquid；

Orifice union can also be the valve of a control flow rate of liquid, and the periphery of valve is fixed on the transfusion below reservoir In pipe, the osculum above valve is towards reservoir, and when extruding reservoir, the liquid in reservoir runs downwards and can produce wink Between larger hydraulic pressure, valve extruding conjunction is closed, so as to prevent liquid from running downwards, the effect that liquid is run downwards is blocked to reach Really.

The utility model additionally provides the transfusion device with the above-mentioned only liquid structure that convenient can recover to use, in the transfusion device In, dropping funnel of the chamber equivalent to traditional infusion device.

The utility model is had an advantageous effect in that compared with prior art：

The liquid outlet of chamber rationally, can automatically be closed, reached by the utility model smart structural design by stopping liquid Only liquid effect is, it is necessary to which when disabling only liquid function, the liquid that need to be only blocked by orifice union in reservoir flows downwards, then Reservoir is extruded, the liquid for making to have previously been stored in reservoir is up, by only liquid jack-up, you can connect chamber and reservoir It is logical, so as to release only liquid status, orifice union is opened afterwards, you can fast quick-recovery is normally used, simple and convenient, uses peace It is complete convenient, be conducive to the treatment to clinical patients.

Brief description of the drawings

Fig. 1 is the structural representation of transfusion device in the utility model embodiment 1；

Fig. 2 is the structural representation of transfusion device in the utility model embodiment 2；

Fig. 3 is the structural representation of transfusion device in the utility model embodiment 3.

In figure：1st, dropping funnel wall；2nd, base；3rd, float valve；4th, soft sealing film；5th, reservoir；6th, woven hose；7th, adjusting bracket； 8th, on-off switch；9th, valve.

Embodiment

Embodiment of the present utility model is described further below in conjunction with the accompanying drawings：

Embodiment 1：

As shown in figure 1, having the only liquid structure that convenient can recover to use on transfusion device, only liquid structure chamber, storage should be included Liquid capsule 5 and orifice union, chamber are the dropping funnel in transfusion device, and it combines (i.e. conventional dropping funnel by dropping funnel wall 1 and base 2 The structure of use), dropping funnel is interior provided with the only liquid for automatically controlling the keying of its liquid outlet, and only liquid is using float valve 3, the bottom of float valve 3 Portion is provided with the sealing surface being engaged with the liquid outlet of dropping funnel, and the sealing surface is that (it uses flexible sealing material system to soft sealing film 4 Into), the liquid outlet of dropping funnel is connected by pipeline with the inlet opening of reservoir 5 below, and reservoir 5 is made up of elastomeric material Cavity utricule, orifice union is installed on the woven hose 6 of the lower section of reservoir 5, orifice union uses flow control valve, the flow Adjusting switch can be direct up to the flow control valve in minimum discharge 0, the present embodiment from design maximum continuous flow regulation Using the adjusting bracket 7 used in current transfusion device, when adjusting bracket 7 is adjusted into minimum discharge 0, liquid stops flowing, so as to block Liquid is run downwards.

In use, when liquid enters the dropping funnel that dropping funnel wall 1 and base 2 are constituted, float valve 3 drives the flexible sealing of its bottom Film 4 floats together, and liquid is flowed downward out by the liquid outlet on dropping funnel base 2；After liquid infusion-completed, float valve 3 and soft Property diaphragm seal 4 with dropping funnel liquid level decline and fall automatically, when on the base 2 for dropping down onto dropping funnel, the flexible sealing of the bottom of float valve 3 Film 4 seals the liquid outlet of dropping funnel, realizes automatic liquid-stopping；When needing to disable only liquid function, recovery transfusion, adjusting bracket 7 is turned down Flow is until 0, it is to avoid hydraulic shock has previously been stored in it to the discomfort caused by transfusion person or injury, pinching reservoir 5, extruding In liquid, be turned off because of adjusting bracket 7, blocked liquid and run downwards, thus liquid be forced it is up, by float valve 3 and flexibility The jack-up of diaphragm seal 4, makes dropping funnel be connected with reservoir 5, now, readjusts the aperture of adjusting bracket 7 infusion velocity, transfusion device needed for Internal fluid passage is all connected, so that the fast quick-recovery infusion state of whole transfusion device.

Embodiment 2：

As shown in Fig. 2 also having the only liquid structure that convenient can recover to use on transfusion device, its basic structure is and embodiment 1 is identical, and difference is to be additionally arranged an on-off switch 8, and the on-off switch 8 is arranged on the woven hose 6 of the lower section of reservoir 5, It is communicated with and broken close to reservoir 5 (i.e. on-off switch 8 is arranged on the woven hose 6 between reservoir 5 and adjusting bracket 7) Two gears are opened, are run downwards for blocking liquid, therefore in the present embodiment, on-off switch 8, which is only, plays throttling action Orifice union, the effect of adjusting bracket 7 is also changed, and it is mainly used in adjusting the infusion velocity during normal infusion.

The transfusion of this transfusion device and the operation principle process of automatic liquid-stopping are same as Example 1, and repetition is not remake herein Description.When needing to disable only liquid function, recovery transfusion, on-off switch 8 is adjusted to disconnect gear, it is to avoid hydraulic shock is to defeated Discomfort or injury that liquid person causes, pinching reservoir 5, extruding have previously been stored in liquid therein, be turned off because of on-off switch 8, Liquid has been blocked to run downwards, therefore liquid is forced up, by float valve 3 and the jack-up of soft sealing film 4, makes dropping funnel and reservoir 5 connections, now, the fluid passage that on-off switch 8 is adjusted to connect inside gear, transfusion device are all connected, so that whole defeated The fast quick-recovery infusion state of liquid device.

Embodiment 3：

As shown in figure 3, on transfusion device equally also have can it is convenient recover use only liquid structure, its basic structure also with reality Apply that example 1 is identical, difference is to install a valve 9 for controlling flow rate of liquid the woven hose 6 below reservoir 5 Nei, and its is tight Adjacent reservoir 5 (i.e. valve 9 is arranged in the woven hose 6 between reservoir 5 and adjusting bracket 7), the periphery of valve 9 is fixed on transfusion On the inwall of pipe 6, the osculum of the top of valve 9 is towards the reservoir 5 above it, when occurring moment larger hydraulic pressure from top to bottom, Valve 9 can be squeezed pressing and close, and the effect that liquid is run downwards is blocked so as to reach, therefore in the present embodiment, valve 9 has been only To the orifice union of throttling action, adjusting bracket 7 is mainly used in adjusting the infusion velocity during normal infusion.

The transfusion of this transfusion device and the operation principle process of automatic liquid-stopping are also same as Example 1, do not remake weight herein Multiple description.When needing to disable only liquid function, recovery transfusion, quick pinching reservoir 5, extruding has previously been stored in liquid therein Body, the operation can make to form moment larger hydraulic pressure in the woven hose 6 between reservoir 5 and valve 9, valve 9 is squeezed pressing and close, Liquid is blocked to run downwards, it is to avoid hydraulic shock to by transfusion person cause discomfort or injury, liquid be forced it is up, by float valve 3 And the jack-up of soft sealing film 4, dropping funnel is connected with reservoir 5, now, the fluid passage connection of the above section of valve 9 is unclamped Reservoir 5, valve 9 is reopened, and the fluid passage inside transfusion device is all connected, so that the fast quick-recovery of whole transfusion device is defeated Note state.

Claims (10)

1. a kind of only liquid structure that convenient can recover to use, it is characterised in that：Including chamber, reservoir (5) and orifice union, chamber The liquid outlet of room is connected with the inlet opening of reservoir (5), provided with the only liquid, liquid storage for automatically controlling the keying of its liquid outlet in chamber Capsule (5) is cavity utricule, under external force, and the cavity volume in reservoir (5) changes, after external force is eliminated, reservoir (5) it is automatic to recover to original state, installed on the woven hose (6) below the bottom liquid outlet or reservoir (5) of reservoir (5) Orifice union.

2. the only liquid structure according to claim 1 that convenient can recover to use, it is characterised in that：Described chamber goes out liquid Pass through pipeline connection between mouth and the inlet opening of reservoir (5).

3. the only liquid structure according to claim 1 that convenient can recover to use, it is characterised in that：Described only liquid be with The float valve (3) that liquid level in chamber is just lifted.

4. the only liquid structure according to claim 1 that convenient can recover to use, it is characterised in that：Described only liquid is used Flexible sealing material is made, and only the bottom of liquid is engaged with the liquid outlet of chamber.

5. the only liquid structure according to claim 1 that convenient can recover to use, it is characterised in that：The bottom of described only liquid Portion is provided with the sealing surface being engaged with the liquid outlet of chamber, and sealing surface is made of flexible sealing material.

6. according to any described only liquid structure that convenient can recover to use in Claims 1 to 5, it is characterised in that：In chamber Bottom is bright and clean region with the position that only liquid coordinates.

7. according to any described only liquid structure that convenient can recover to use in Claims 1 to 5, it is characterised in that：Described Orifice union is an on-off switch (8).

8. according to any described only liquid structure that convenient can recover to use in Claims 1 to 5, it is characterised in that：Described Orifice union is a flow control valve.

9. according to any described only liquid structure that convenient can recover to use in Claims 1 to 5, it is characterised in that：Described Orifice union is the valve (9) of a control flow rate of liquid, and the periphery of valve (9) is fixed on the woven hose (6) below reservoir (5) Interior, osculum above valve (9) is towards reservoir (5).

10. a kind of have any described transfusion device for stopping liquid structure that convenient can recover to use in claim 1~9.