CN201133856Y

CN201133856Y - Pressure detector

Info

Publication number: CN201133856Y
Application number: CNU2007203092903U
Authority: CN
Inventors: 高建
Original assignee: Beijing Aeonmed Co Ltd
Current assignee: Beijing Aeonmed Co Ltd
Priority date: 2007-12-28
Filing date: 2007-12-28
Publication date: 2008-10-15
Anticipated expiration: 2017-12-28

Abstract

The utility model discloses a pressure detector used for infusion tubes, which comprises a mounting plate, a pressure sensor and a pressure block, wherein, the pressure sensor is provided with a pressure lever and fixed on the mounting plate, and the pressure block and the pressure lever are oppositely arranged on the mounting plate. In the pressure detector of the utility model, the matching relation between the pressure lever of the pressure sensor and the pressure block has good stability, which can prevent the occurrence of false alarm and no alarm.

Description

Pressure-detecting device

Technical field

The utility model relates to a kind of pressure-detecting device, specifically, relates to a kind of pressure-detecting device that is used for medical infusion lines.

Background technology

Cause the Different Effects that patient is produced for the height of considering the woven hose internal pressure in the process of patient infusion at the clinical practice infusion pump, based on consideration to patient safety, therefore requiring will have pair device that the woven hose pipeline inner pressure detects in real time in infusion process; Pressure-detecting device can at various different woven hoses in infusion process when surpassing the pressure limit of permission, in time trigger sound and light alarm, the prompting medical personnel handle.

Existing medical infusion pressure-detecting device adopts split type structure mostly, general mainly form by the pressure transducer with depression bar, briquetting, between the depression bar and briquetting of when transfusion woven hose tubing clamp at pressure transducer, because the inherent different fluid pressure differences constantly of woven hose pipeline, thereby this variation is passed to the depression bar of pressure transducer by the tube wall of woven hose, cause the sensitive element generation miniature deformation in the pressure transducer, thereby when surpassing the authouized pressure value range, trigger pressure alarm.

Yet owing to adopt split-type structural, wherein briquetting is fixed on the pump door, and pressure transducer is fixed on the installing plate of opposite side, only competence exertion effect when the pump door is shut; In long-term use, the distortion of degree of tightness and door lining and the size of exerting oneself at closing time wait these factors all can cause the matching relationship instability of depression bar and briquetting owing to close the door, thereby cause when using the different woven hose of extent of elasticity, meeting produces false alarm or does not report to the police, and this all is extremely harmful for patient.

The utility model content

Technical problem to be solved in the utility model is: a kind of pressure-detecting device is provided, makes the depression bar of pressure transducer and the matching relationship of briquetting have good stability.

For solving the problems of the technologies described above, the utility model provides a kind of pressure-detecting device, and it is used for woven hose, comprising: installing plate; Pressure transducer has depression bar, and is fixed on the installing plate; And briquetting; It is characterized in that briquetting and depression bar relatively are arranged on the installing plate.

Preferably, briquetting is with respect to the first die cavity adjustable positions of installing plate.

Briquetting one end passes the perforation that is opened in first die cavity and cooperates with setting nut, and is arranged with spring between the other end and the setting nut.

The straight-bar portion that briquetting has clamping part and extends perpendicular to clamping part.

The clamping end face of clamping part is arranged to the arc surface shape of clamping woven hose.

An end relative with the clamping end face of clamping part is arranged to flange shape, and first die cavity correspondingly is provided with the groove that slides for flange.

The end face of depression bar clamping woven hose is arranged to arc surface.

Pressure-detecting device is adjusted to by setting nut and spring, and the briquetting position remains unchanged when the pressure increase in the woven hose makes that depression bar is moved.

Installing plate first die cavity axially has an open side that is used to install briquetting along woven hose.

The utility model is owing to all be arranged on pressure transducer and briquetting on the installing plate, avoided the distortion of pump door degree of tightness, door lining and at closing time firmly these factors such as size to the influence of matching relationship between the depression bar of pressure transducer and the briquetting, thereby guarantee that the depression bar of pressure transducer and the matching relationship of briquetting have good stable, and then avoid false alarm and the generation of the phenomenon of not reporting to the police, avoid the patient is had a negative impact and damages.

And, briquetting one end passes the perforation that is opened in first die cavity and cooperates with setting nut, and be arranged with spring between the other end and the setting nut, make briquetting adjustable by setting nut with respect to the first die cavity axial spacing, so but therefore the woven hose of clamping different-diameter has guaranteed the compatibility to the woven hose of different-diameter.

Description of drawings

Below in conjunction with accompanying drawing specific embodiment of the utility model is described.But the multitude of different ways that the utility model can be defined by the claims and cover is implemented.Identical in the accompanying drawings parts are represented with identical label.

Fig. 1 is the cut-open view of pressure-detecting device of the present utility model;

Fig. 2 shows the sketch that spring housing is located at position between briquetting and the setting nut;

Fig. 3 for along I-I of the present utility model shown in Figure 1 to the right side look cut-open view; And

Fig. 4 for along I-I of the present utility model shown in Figure 1 to a left side look cut-open view.

Embodiment

Below in conjunction with accompanying drawing specific embodiment of the utility model is described.

In the accompanying drawing, Fig. 1 shows the sectional view that clamping has the pressure-detecting device of the present utility model of woven hose 4.As can be seen from Figure 1, installing plate 1 is provided with first die cavity 11 that holds briquetting 5 and second die cavity 13 of hold pressure unit 2 respectively, and wherein woven hose 4 can be clamped between briquetting 5 and the depression bar 3.Briquetting 5 is packed into first die cavity 11 from the side of first die cavity 11 along being parallel to woven hose 4 axis directions, and its end that stretches out perforation 14 is by setting nut 7 lockings, and the other end is fastened in the groove 12 of first die cavity 11 slidably; Spring 6 one ends that are set on the briquetting 5 are pressed on the sidewall of perforation 14, and the other end compresses an end of briquetting 5.By adjusting the position between setting nut 7 clamping blocks 5 and the depression bar 3, then by spring 6 with this stationkeeping, thereby but the woven hose 4 of clamping different-diameter.

As can be seen from Figure 2, the straight-bar portion 10 that briquetting 5 has clamping part 9 and extends perpendicular to clamping part 9, the straight-bar portion 10 of briquetting 5 is in order to sheathed spring 6 and be provided with the screw thread that can cooperate with setting nut 7.Clamping part 9 has the flange that cooperates with groove 12 and the bare terminal end of clamping woven hose 4.

Can find out the shape of the bare terminal end of depression bar 3 in conjunction with Fig. 1 and Fig. 3; Can find out the shape of bare terminal end of the clamping part 9 of briquetting 5 in conjunction with Fig. 1 and Fig. 4; The end face of the two clamping woven hose 4 all is arranged to circular-arc.

When specifically installing and using, spring 6 is set in the straight-bar portion 10 of briquetting 5 (Fig. 2 illustrates), then its open side (not shown) from first die cavity 11 is packed into and seal this open side, again with the external part of setting nut 7 locking straight-bar portions 10 with the pressing plate (not shown).But adjust setting nut 7 and make the woven hose 4 of briquetting 5 with respect to the position clamping certain diameter of depression bar 3, particularly, when the pipe internal pressure of woven hose 4 less than setup pressure value (promptly triggering the required force value of alarm), the displacement of depression bar 3 is not enough to make pressure transducer 2 to trigger alarms; Otherwise when the pressure in the woven hose 4 surpassed setting value, woven hose 4 (having elasticity) passed to pressure the depression bar 3 and the final alarm that triggers of pressure transducer 2.After adjusting is finished, at last with bonnet 8 sealings.Final installation effect as shown in Figure 1.

It should be noted that, according to following adjusting setting nut 7 and spring 6, promptly, when the pressure increase in the woven hose 4 makes that depression bar 3 is moved the position of briquetting 5 remain unchanged (, axial displacement does not take place with respect to first die cavity 11 in briquetting 5), thus pressure warning unit triggered when making the pressure of depression bar 3 in woven hose 4 greater than setup pressure value.

Above embodiment is only in order to explanation the technical solution of the utility model but not limit it, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from the spirit and scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.

Claims

1. pressure-detecting device, it is used for woven hose (4), comprising:

Installing plate (1);

Pressure transducer (2) has depression bar (3), and is fixed on the described installing plate (1); And

Briquetting (5);

It is characterized in that described briquetting (5) relatively is arranged on the described installing plate (1) with described depression bar (3).

2. pressure-detecting device according to claim 1 is characterized in that, described briquetting (5) is with respect to first die cavity (11) adjustable positions of described installing plate (1).

3. pressure-detecting device according to claim 2, it is characterized in that, described briquetting (5) one ends pass the perforation (14) that is opened in described first die cavity (11) and cooperate with setting nut (7), and are arranged with spring (6) between the other end and the described setting nut (7).

4. pressure-detecting device according to claim 3 is characterized in that, the straight-bar portion (10) that described briquetting (5) has clamping part (9) and extends perpendicular to described clamping part (9).

5. pressure-detecting device according to claim 4 is characterized in that, the clamping end face of described clamping part (9) is arranged to the shape of the arc surface of the described woven hose of clamping (4).

6. pressure-detecting device according to claim 5 is characterized in that, an end relative with described clamping end face of described clamping part (9) is arranged to flange shape, and described first die cavity (11) correspondingly is provided with the groove (12) that slides for described flange.

7. pressure-detecting device according to claim 1 is characterized in that, the end face of the described woven hose of described depression bar (3) clamping (4) is arranged to arc surface.

8. pressure-detecting device according to claim 3, it is characterized in that, described pressure-detecting device is adjusted to by described setting nut (7) and described spring (6), and the pressure increase in described woven hose (4) makes the position of depression bar (3) briquetting (5) when being moved remain unchanged.

9. pressure-detecting device according to claim 5 is characterized in that, first die cavity (11) of described installing plate (1) axially has an open side that is used to install described briquetting (5) along described woven hose (4).