CN203790336U - Piston type negative pressure indicator - Google Patents
Piston type negative pressure indicator Download PDFInfo
- Publication number
- CN203790336U CN203790336U CN201420010123.9U CN201420010123U CN203790336U CN 203790336 U CN203790336 U CN 203790336U CN 201420010123 U CN201420010123 U CN 201420010123U CN 203790336 U CN203790336 U CN 203790336U
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- China
- Prior art keywords
- negative pressure
- pressure indicator
- piston
- piston type
- type negative
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Abstract
A piston type negative pressure indicator comprises a sealing cover cap, a piston and a hanging ring. The hanging ring is provided with standard negative pressure scales and a drainage bottle body which is called a bottle body for short, the piston is placed at the upper end inside a port of the piston type negative pressure indicator, then the port of the piston type negative pressure indicator is sleeved with the sealing cover cap, the piston is pressed downwards to the root of the cover cap, the inner diameter of the cover cap is 1-3 millimeters larger than the outer diameter of the piston type negative pressure indicator, and when the cover cap is pressed downwards, the cover cap is in interference fit with the port, and sealing is formed. The piston type negative pressure indicator is simple in structure, practical and reliable, is improved to a great extent on the basis of a negative pressure indicator in an existing disposable high negative pressure drainage bottle, greatly facilitates clinical operation and postoperative care work of hospitals and further facilitates application and popularization of the disposable high negative pressure drainage bottle.
Description
Technical field
This utility model relates to a kind of pressure measurement technology, particularly a kind of piston type negative pressure indicator.
Background technology
Based on science, the advantage such as safe, reliable and efficient, " negative pressure drainage method " generally adopted in hospital surgery operation and postoperative care.The negative pressure of utilizing pre-vacuum environment in drainage container to produce, can help doctor and nursing staff for surgical wound secretions continue, efficient drain.
Just there are several " disposable use high negative pressure drainage bottles " in Medical Device Market and the hospital clinical field of China at present.By deep clinical investigation and product research, we find that existing various " disposable use high negative pressure drainage bottle " ubiquity three obvious defects and use drawback, the one, negative pressure shows with oneself's detection directly perceived not and accurate, the 2nd, drainage controlling device can not fine adjustment, and the 3rd, drainage bottle Bottle structure comprcssive strength is inadequate.
In the middle of negative pressure drainage technology, there are three key links: 1, " negative pressure indication " directly perceived and is accurately that negative pressure original state detects, and is again the key needs that in use procedure, negative pressure shows; 2, accurate and convenience, the especially key link of " negative pressure drainage " process control technology of " flow-control "; 3, whether reliably drainage bottle bottle anti-pressure ability is negative pressure drainage container basic link.
And the negative pressure indicator of " the disposable use high negative pressure drainage bottle " that occur in the market employing is the method that hollow corrugated pipe shows negative pressure state, defect and the drawback of which are: negative pressure shows directly perceived not and accurate, is unfavorable for that doctor and nurse observe the negative pressure state of drainage bottle.
Utility model content
Technical problem underlying to be solved in the utility model is, overcome the above-mentioned defect that prior art exists, and provide a kind of piston type negative pressure indicator, it is simple in structure, practical, reliable, it is the significantly improvement to negative pressure indicator in existing " disposable use high negative pressure drainage bottle " product, to greatly facilitate hospital clinical operation and postoperative care work, the promoting the use of of be more convenient for " disposable use high negative pressure drainage bottle ".
The above-mentioned shortcoming existing in order to overcome prior art, this utility model is taked following technical scheme:
A kind of piston type negative pressure indicator, comprise: sealing cap, piston, hanging ring, on this hanging ring with standard negative pressure scale, drainage bottle bottle, be called for short bottle, piston is positioned over the upper end in piston type negative pressure indicator interface, then sealing cap is enclosed within on the interface of piston type negative pressure indicator, and press to the root of block, the internal diameter size of block, than the large 1～3mm of outside dimension of piston type negative pressure indicator interface, can form interference fit with interface when lower cover cap, thereby forms sealing.
The mode that this utility model adopts piston to move, and be equipped with the negative pressure scale of standard, can be intuitively and react exactly variation and the product negative pressure criterion of acceptability of negative pressure value in drainage bottle.
This utility model is simple in structure, practical, reliable, it is the significantly improvement to negative pressure indicator in existing " disposable use high negative pressure drainage bottle " product, to greatly facilitate hospital clinical operation and postoperative care work, the promoting the use of of be more convenient for " disposable use high negative pressure drainage bottle ".
In sum, this utility model is to just having started universal lifting and the transformation of using key technology in " disposable use high negative pressure drainage bottle " product in current clinical medicine operation and postoperative care.
The beneficial effects of the utility model are, it is simple in structure, practical, reliable, it is the significantly improvement to negative pressure indicator in existing " disposable use high negative pressure drainage bottle " product, to greatly facilitate hospital clinical operation and postoperative care work, the promoting the use of of be more convenient for " disposable use high negative pressure drainage bottle ".
Accompanying drawing explanation
Below in conjunction with drawings and Examples, this utility model is further illustrated.
Fig. 1 is whole generalized section of the present utility model.
Number in the figure explanation:
1 block
2 pistons
3 hanging rings
4 bottles
The specific embodiment
This utility model embodiment is described as follows in conjunction with Fig. 1:
A kind of piston type negative pressure indicator, it is characterized in that, comprise: sealing cap 1, piston 2, hanging ring 3, on this hanging ring 3 with standard negative pressure scale, drainage bottle bottle 4, be called for short bottle 4, piston 2 is positioned over the upper end in piston type negative pressure indicator interface, again sealing cap 1 is enclosed within on the interface of piston type negative pressure indicator, and press to block 1 root, the internal diameter size of block is than the large 1～3mm of outside dimension of piston type negative pressure indicator interface, when lower cover cap 1, can form interference fit with interface, thereby form sealing.
This utility model utilizes the ultimate principle of pressure measurement technology,, under the effect of pressure and vacuum, makes " piston " produce displacement, and indicates negative pressure value on the standard negative pressure rule on hanging ring.
When " piston " and " block " assemble complete after, can start the operation of the prefabricated negative pressure of drainage bottle.
Before operation, preparation is: first " catheter adapter " is enclosed within on " drainage catheter interface ", and firmly press to the root of " catheter adapter ", because " catheter adapter " is circular soft plastic material, internal diameter size is than the little 2mm of outside dimension of " drainage catheter interface ", so when pressing down " catheter adapter " Shi Huiyu " drainage catheter interface " formation " interference fit ", thereby reach the effect of sealing; It is upper that another patent of Zai Jiang our company " open and close type flow controller " is clipped in " catheter adapter ", and keep relaxation state.
Start to carry out the prefabricated operation of negative pressure of " disposable use high negative pressure drainage bottle " below.Method is: with vacuum pump to drainage bottle extracting vacuum.In the process of extracting vacuum, lifting along with vacuum in drainage bottle, " piston " can move down thereupon, when reaching the requiring of vacuum, " piston " can be down to the lowermost end of " negative pressure indicator ", at this moment negative pressure value can reach 80% of be not less than-98%kpa, be negative pressure criterion of acceptability numerical value, and correspondence is presented on the standard negative pressure scale on " hanging ring ", then screw " handwheel " on " open and close type flow controller " until " catheter adapter " thoroughly killed to sealing state, arrive this, the prefabricated process of negative pressure finishes.
Because the pressure of human body environment has an atmospheric pressure, and the drainage bottle of prefabricated vacuum has high negative pressure state, under the effect of this pressure reduction, by the negative pressure in continuous release drainage bottle, the body fluid of lesions position can successfully be sucked in drainage bottle, negative pressure in drainage bottle all discharges complete or stops artificially drain, and disposable use high negative pressure drainage bottle is finished the work or quit work.
When " disposable use high negative pressure drainage bottle " comes into operation, loosen on demand " open and close type flow controller ", the negative pressure discharging in drainage bottle just can carry out drainage procedure.Along with the reduction of the vacuum in drainage bottle, " piston " can move up thereupon, and the negative pressure in drainage bottle discharges complete, and " piston " will rise to the top of negative pressure indicator, and " disposable high negative pressure drainage bottle " is even if finish using.
Negative pressure check before " disposable high negative pressure drainage bottle " use:
When " piston " is not in the bottom of " negative pressure indicator ", such as in middle part, top or top, the negative pressure that proof should " disposable high negative pressure drainage bottle " has leakage, lists substandard product in.
The above, it is only preferred embodiment of the present utility model, not this utility model is done to any pro forma restriction, any simple modification, equivalent variations and modification that every foundation technical spirit of the present utility model is done above embodiment, all still belong in the scope of technical solutions of the utility model.
In sum, this utility model is in structural design, use practicality and cost benefit, meet industry development completely required, and the structure disclosing is also to have unprecedented innovative structure, there is novelty, creativeness, practicality, the regulation that meets relevant new patent important document, therefore mention application in accordance with the law.
Claims (1)
1. a piston type negative pressure indicator, it is characterized in that, comprise: sealing cap (1), piston (2), hanging ring (3), this hanging ring (3) is upper with standard negative pressure scale, drainage bottle bottle (4), be called for short bottle (4), piston (2) is positioned over the upper end in piston type negative pressure indicator interface, again sealing cap (1) is enclosed within on the interface of piston type negative pressure indicator, and press to the root of block (1), the internal diameter size of block is than the large 1～3mm of outside dimension of piston type negative pressure indicator interface, can form interference fit with interface when lower cover cap (1), thereby form sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420010123.9U CN203790336U (en) | 2014-01-03 | 2014-01-03 | Piston type negative pressure indicator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420010123.9U CN203790336U (en) | 2014-01-03 | 2014-01-03 | Piston type negative pressure indicator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203790336U true CN203790336U (en) | 2014-08-27 |
Family
ID=51372615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420010123.9U Expired - Fee Related CN203790336U (en) | 2014-01-03 | 2014-01-03 | Piston type negative pressure indicator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203790336U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105962954A (en) * | 2015-06-26 | 2016-09-28 | 胡绍勤 | Negative pressure device with pressure display |
-
2014
- 2014-01-03 CN CN201420010123.9U patent/CN203790336U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105962954A (en) * | 2015-06-26 | 2016-09-28 | 胡绍勤 | Negative pressure device with pressure display |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140827 Termination date: 20160103 |