CN208910961U - A kind of transfusion bags with structure of voltage regulation - Google Patents
A kind of transfusion bags with structure of voltage regulation Download PDFInfo
- Publication number
- CN208910961U CN208910961U CN201721626051.0U CN201721626051U CN208910961U CN 208910961 U CN208910961 U CN 208910961U CN 201721626051 U CN201721626051 U CN 201721626051U CN 208910961 U CN208910961 U CN 208910961U
- Authority
- CN
- China
- Prior art keywords
- relief valve
- pressure chamber
- blood
- outer layer
- pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000008280 blood Substances 0.000 claims abstract description 28
- 210000004369 blood Anatomy 0.000 claims abstract description 28
- 238000007789 sealing Methods 0.000 claims abstract description 10
- 238000009434 installation Methods 0.000 claims description 2
- 230000017531 blood circulation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Landscapes
- Medical Preparation Storing Or Oral Administration Devices (AREA)
Abstract
The utility model discloses a kind of transfusion bags with structure of voltage regulation, internal layer surrounds inner cavity for holding blood, outer layer is enclosed in outside internal layer, the pressure chamber of sealing is formed between outer layer and internal layer, air inflation nozzle is installed on outer layer, air inflation nozzle is connected to pressure chamber, relief valve is installed on the outer layer, the relief valve is located at the top of air inflation nozzle, and relief valve is close to the top of pressure chamber, a relief valve is connected on pressure chamber, after the pressure in pressure chamber increases to rated value, relief valve conducting, the compressed gas in pressure chamber is discharged, avoid the outer layer of blood bag damaged, the especially relief valve top that is located at pressure chamber, in the top of air inflation nozzle, such benefit is relief valve pressure release moment, slight expansion can occur for the internal layer of blood bag, if blood transfusion tube of the expanding position below blood bag, the blood in blood transfusion tube certainly will be will affect Relief valve is mounted on above blood bag by flow velocity, is made relief valve far from blood transfusion tube, is reduced locally influence of the expansion to blood transfusion of this moment.
Description
Technical field
The utility model relates to a kind of Medical transfusion bag, a kind of specifically transfusion bags with structure of voltage regulation.
Background technique
In Chinese patent literature, the patent of an entitled transfusion bags is disclosed, and the patent No. is 962267406.It is defeated by internal layer
Blood bag and outer layer inflating bag double-ply bag composition, and outer layer inflating bag sets one and can be filled with the outer of gas in it and connects gaseous core.The patent
The benefit of technology is that an inflatable structure is arranged to blood bag, and the gas injection into inflatable structure increases in blood bag in inflatable structure
Air pressure, improve the flow velocity of blood, can satisfy the requirement in special circumstances to velocity of blood flow.But such structure there is also
One drawback is exactly air pressure increase in inflatable structure, it is possible to cause the outer layer of blood bag to burst apart, influence normally to transfuse blood.
Utility model content
The utility model provides a kind of transfusion bags of external pressure coutroi velocity, and solving air pressure in pressure chamber leads to greatly shell of compression
The problem of rupture, improves the safety of transfusion bags.
In order to solve the above-mentioned technical problem, the utility model adopts the following technical solution:
A kind of transfusion bags with structure of voltage regulation comprising double-layer structure, wherein internal layer surrounds inner cavity and is used to hold blood,
Outer layer is enclosed in outside internal layer, forms the pressure chamber of sealing between outer layer and internal layer, air inflation nozzle, air inflation nozzle and pressure are installed on outer layer
Power chamber connection, which is characterized in that install relief valve on the outer layer, which is located at the top of air inflation nozzle, and relief valve leans on
The top of nearly pressure chamber.
The relief valve includes that a pressure release shell and a sealing inner core, the inner cavity of pressure release shell are connected to pressure chamber,
Relief hole is formed on the side wall of pressure release shell, sealing inner core is placed in the inner cavity of pressure release shell, the outer end installation one of pressure release inner core
A helical spring, helical spring in the initial state, are sealed in sealing inner core on relief hole.
The other end of the helical spring installs the baffle of an adjusting helical spring deformation quantity.
The beneficial effect that the utility model generates is to improve the safety coefficient of infusion bag, connects one on pressure chamber and lets out
Pressure valve, after the pressure in pressure chamber increases to rated value, relief valve conducting is discharged the compressed gas in pressure chamber, avoids
The top that the outer layer breakage of blood bag, especially relief valve are located at pressure chamber, in the top of air inflation nozzle, such benefit is relief valve
Slight expansion can occur for the internal layer of pressure release moment, blood bag, if blood transfusion tube of the expanding position below blood bag, gesture
The velocity of blood flow in blood transfusion tube must be influenced, relief valve is mounted on above blood bag, makes relief valve far from blood transfusion tube, hence it is evident that is reduced
Locally influence of the expansion to blood transfusion of this moment.
Detailed description of the invention
Fig. 1 is the sectional view of the utility model, shows the structure of pressure chamber.
Fig. 2 is the plan view of the utility model.
Fig. 3 is the structure chart of relief valve.
Appended drawing reference
1 hook, 2 air inflation nozzles, 3 internal layers, 4 pressure chambers, 5 outer layers, 6 relief valves, 7 blood transfusion tubes.
8 inner cavities, 9 relief holes, 10 pressure release shells, 11 sealing inner cores, 12 helical springs, 13 baffles,
14 inner cavities, 15 screw thread thimbles.
Specific embodiment
It elaborates with reference to the accompanying drawings and examples to the utility model.
Such as Fig. 1 and Fig. 2, the inner cavity that internal layer 3 is encircled a city is for holding blood.Pressure chamber 4 is formed between outer layer 5 and internal layer 3.Outside
Air inflation nozzle 2 is installed, air inflation nozzle 2 is connected to pressure chamber 4 on layer 3.In order to avoid the air pressure in pressure chamber is excessive, pacify on outer layer 3
Fill relief valve 6.After the air pressure overrate of pressure chamber, relief valve 6 is connected, the portion gas in discharge pressure chamber 4.Pressure release
Valve 6 is located at 4 top position of pressure chamber, and relief valve 6 is located at the top of air inflation nozzle 2.
Such as Fig. 3, relief valve 6 at least should include a pressure release shell 10, the besieged city of pressure release shell 10 inner cavity, pressure release shell 10
It is mounted on outer layer 5.Relief hole 9 is formed on the side wall of pressure release shell 10, is also embedded in a pressure release in the inner cavity of pressure release shell 10
The right end of inner core 11, pressure release inner core 11 installs a helical spring 12, and the initial position of pressure release inner core 11 is made to be sealed in relief hole 9
On.
In order to move pressure release inner core in fixed stroke, the inner cavity of pressure release shell 10 is arranged to two not by such as Fig. 3
With the internal diameter of size, i.e. inner cavity 8 and inner cavity 14, the internal diameter of inner cavity 14 is greater than the internal diameter of inner cavity 8, in this way in inner cavity 14
Two table tops of left side stroke, stroke flange, flange are not buckled on table top at the end of pressure release inner core 11, so that pressure release inner core 11
Travel limit is in the length range of inner cavity 14.
In order to keep the rated pressure value of relief valve adjustable, one baffle 13 and a spiral shell are installed in the right end of helical spring 12
Line thimble 15 increases helical spring to the elastic force of pressure release inner core 11 by rotating the position of 15 regulating fender 13 of screw thread thimble.
Claims (3)
1. a kind of transfusion bags with structure of voltage regulation comprising double-layer structure, wherein internal layer surrounds inner cavity for holding blood, outside
Layer is enclosed in outside internal layer, forms the pressure chamber of sealing between outer layer and internal layer, air inflation nozzle, air inflation nozzle and pressure are installed on outer layer
Chamber connection, which is characterized in that install relief valve on the outer layer, which is located at the top of air inflation nozzle, and relief valve is close
The top of pressure chamber.
2. a kind of transfusion bags with structure of voltage regulation according to claim 1, which is characterized in that the relief valve includes one
Pressure release shell and a sealing inner core, the inner cavity of pressure release shell are connected to pressure chamber, form relief hole on the side wall of pressure release shell,
Sealing inner core is placed in the inner cavity of pressure release shell, and a helical spring is installed in the outer end of pressure release inner core, and helical spring is in initial shape
Under state, it is sealed in sealing inner core on relief hole.
3. a kind of transfusion bags with structure of voltage regulation according to claim 2, which is characterized in that the helical spring it is another
The baffle of one adjusting helical spring deformation quantity of end installation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721626051.0U CN208910961U (en) | 2017-11-29 | 2017-11-29 | A kind of transfusion bags with structure of voltage regulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721626051.0U CN208910961U (en) | 2017-11-29 | 2017-11-29 | A kind of transfusion bags with structure of voltage regulation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208910961U true CN208910961U (en) | 2019-05-31 |
Family
ID=66691530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721626051.0U Expired - Fee Related CN208910961U (en) | 2017-11-29 | 2017-11-29 | A kind of transfusion bags with structure of voltage regulation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208910961U (en) |
-
2017
- 2017-11-29 CN CN201721626051.0U patent/CN208910961U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190531 Termination date: 20191129 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |