CN209075674U - It is a kind of can anti-return blood infusion apparatus - Google Patents
It is a kind of can anti-return blood infusion apparatus Download PDFInfo
- Publication number
- CN209075674U CN209075674U CN201820027378.4U CN201820027378U CN209075674U CN 209075674 U CN209075674 U CN 209075674U CN 201820027378 U CN201820027378 U CN 201820027378U CN 209075674 U CN209075674 U CN 209075674U
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- CN
- China
- Prior art keywords
- hose
- hard tube
- valve
- top surface
- portioning layer
- 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
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model relates to medical treatment and nursing appliance technologies, especially it is a kind of can anti-return blood infusion apparatus, including puncture outfit, hard tube, communicating valve, hose and syringe needle, the hard tube both ends bending, communicating valve is set to centre, internal portioning layer and outer interlayer are equipped with inside the communicating valve, the internal portioning layer is cylindrical, opening is connected with valve inlet is connected to, side-closed, top surface is strainer, the outer interlayer opening inner side diameter and internal portioning layer outer diameter coincide, and its top surface is closed, side wall is made of four connecting rods, the hard tube end is connected to the hose, hose is equipped with dropping funnel and flow control valve, infiltration cotton is equipped in the dropping funnel；The hose end connecting needle.The structure design of the utility model is reasonable, and after infusion, medical fluid, which is trapped in the hard tube of bending, no longer generates pressure, outer interlayer sinks naturally under the effect of gravity, outer interlayer top surface is contacted with internal portioning layer top surface strainer, so that connection valve closure, then blood just can not flow back at this time.
Description
Technical field
The utility model relates to medical treatment and nursing appliance technology, especially it is a kind of can anti-return blood infusion apparatus.
Background technique
Infusion apparatus is a kind of very common medical instrument during current clinical care, passes through aseptic process, is established
Channel between vein and medical fluid is used for venous transfusion.But after infusion, if device cannot be removed in time, in perfusion tube
Insufficient pressure will lead in blood backflow to perfusion tube.In the Chinese utility model patent that notification number is CN206526341U,
A kind of anti-blood back degassing bubble infusion device is disclosed, when infusion is soon completed, check-valves can effectively prevent the reflux of blood.
But device construction is complex, ineffective.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned technical disadvantages provide it is a kind of can anti-return blood infusion apparatus.When defeated
After liquid, medical fluid, which is trapped in the hard tube of bending, no longer generates pressure, and outer interlayer sinks naturally under the effect of gravity, outer interlayer
Top surface is contacted with internal portioning layer top surface strainer, so that connection valve closure, then blood just can not flow back at this time.
The utility model solves the technical solution that technical problem uses are as follows: it is a kind of can anti-return blood infusion apparatus, including wear
Thorn device, hard tube, communicating valve, hose and syringe needle, the puncture outfit are connect with hard tube, and puncture outfit is inserted into infusion bottle, described
The bending of hard tube both ends, communicating valve are set to centre, and internal portioning layer and outer interlayer are equipped with inside the communicating valve, and the internal portioning layer is in cylinder
Shape, opening are connected with valve inlet is connected to, and side-closed is pushed up as strainer, the outer interlayer opening inner side diameter and internal portioning layer outer diameter
It coincide, rims diameter and communicating valve internal diameter coincide, and its top surface is closed, and side wall is the paliform being made of four connecting rods
Structure, the hard tube end is connected to the hose, and in infusion process, medical fluid flows into hose by hard tube, due to puncture outfit height
Degree be higher than communicating valve, medical fluid generate liquid pressure force outer interlayer to separate with internal portioning layer, medical fluid via internal portioning layer bottom surface strainer with
Gap is flowed out between the connecting rod of outer interlayer side, in communicating valve medical fluid can proper flow, when infusion terminates, medical fluid plane and hard tube top
End face maintains an equal level, and according to law of connected vessels, medical fluid will no longer be flowed from hard tube to hose, and medical fluid no longer generates pressure at this time, outside every
Layer sinks naturally under the effect of gravity, and outer interlayer top surface contacts with internal portioning layer top surface strainer, so that be connected to valve closure, then blood at this time
Liquid just can not flow back, and the hose is equipped with dropping funnel and flow control valve, infiltration cotton is equipped in the dropping funnel, to prevent in hose
Generate bubble；The hose end connecting needle.
Further, the puncture outfit is equipped with intake valve, and intake valve is protected to the air inlet into infusion bottle in infusion process
Card medical fluid smoothly flows out.
Further, the outer interlayer is made of PVC material, and PVC is the common raw material of current infusion device, at low cost
It is honest and clean, and relative density 1.4, it is greater than physiological saline density, can sinks after infusion, makes to be connected to valve closure.
Beneficial effect possessed by the utility model is: the structure design of the utility model is reasonable, in infusion process, outer interlayer
The pressure that infusion apparatus due to exceeding hard tube generates is separated with internal portioning layer, and medical fluid is via internal portioning layer bottom surface strainer and outer interlayer side
Gap is flowed out between connecting rod, and medical fluid can proper flow in communicating valve；After infusion, medical fluid is trapped in the hard tube of bending no longer
Pressure is generated, outer interlayer sinks naturally under the effect of gravity, and outer interlayer top surface is contacted with internal portioning layer top surface strainer, so that communicating valve
Closing, then blood just can not flow back at this time.
Detailed description of the invention
Attached drawing 1 is the structural schematic diagram of the utility model.
Attached drawing 2 is the structural schematic diagram of internal portioning layer described in the utility model and outer interlayer.
Specific embodiment
1 ~ 2 pair of the utility model is described below with reference to the accompanying drawing.
As shown in Figure 1 and 2, the utility model includes puncture outfit 1, hard tube 3, communicating valve 4, hose 5 and syringe needle 9, the puncture
Device 1 is connect with hard tube 3, and puncture outfit 1 is inserted into infusion bottle, and 3 both ends of the hard tube bending, communicating valve 4 is set to centre, described
Internal portioning layer 4-1 and outer interlayer 4-2 is equipped with inside communicating valve 4, the internal portioning layer 4-1 is cylindrical, opening be connected to valve inlet and connect
Logical, side-closed is pushed up as strainer 4-1-1, and the outer interlayer 4-2 opening inner side diameter and internal portioning layer 4-1 outer diameter coincide, and opening is outer
Edge diameter and 4 internal diameter of communicating valve coincide, and its top surface is closed, and side wall is the paliform structure being made of four connecting rod 4-2-1,
3 end of hard tube is connected to the hose 5, and in infusion process, medical fluid flows into hose 5 by hard tube 3, since puncture outfit 1 is high
Degree is higher than communicating valve 4, and the liquid pressure that medical fluid generates forces outer interlayer 4-2 to separate with internal portioning layer 4-1, and medical fluid is via internal portioning layer 4-1
Gap is flowed out between the connecting rod 4-2-1 of the bottom surface side strainer 4-1-1 and outer interlayer 4-2, in communicating valve 4 medical fluid can proper flow, when
Infusion terminates, and medical fluid plane and 3 top end face of hard tube maintain an equal level, and according to law of connected vessels, medical fluid will no longer be flowed from hard tube 3 to hose 5
Dynamic, medical fluid no longer generates pressure at this time, and outer interlayer 4-2 sinks naturally under the effect of gravity, the top surface outer interlayer 4-2 and internal portioning layer 4-
1 top surface strainer 4-1-1 contact, so that communicating valve 4 is closed, then blood just can not flow back at this time, and the hose 5 is equipped with dropping funnel 6
With flow control valve 8, the dropping funnel 6 is interior to be equipped with infiltration cotton 7, to prevent from generating bubble in hose 5；5 end of the hose connection
Syringe needle 9.
Further, the puncture outfit 1 be equipped with intake valve 2, intake valve 2 in infusion process into infusion bottle into
Gas guarantees that medical fluid smoothly flows out.
Further, the outer interlayer 4-2 is made of PVC material, and PVC is the common raw material of current infusion device, cost
It is cheap, and relative density 1.4, it is greater than physiological saline density, can sinks after infusion, closes communicating valve 4.
Claims (3)
1. one kind can anti-return blood infusion apparatus, including puncture outfit, hard tube, communicating valve, hose and syringe needle, it is characterised in that: institute
State puncture outfit to connect with hard tube, hard tube both ends bending, communicating valve is set to centre, be equipped with inside the communicating valve internal portioning layer and
Outer interlayer, the internal portioning layer is cylindrical, and opening is connected with valve inlet is connected to, and side-closed, top surface is strainer, the outer interlayer
Opening inner side diameter and internal portioning layer outer diameter coincide, and rims diameter and communicating valve internal diameter coincide, and its top surface is closed, and side wall is
The paliform structure being made of four connecting rods, the hard tube end are connected to the hose, and hose is equipped with dropping funnel and flow velocity
Control valve, the dropping funnel is interior to be equipped with infiltration cotton, the hose end connecting needle.
2. one kind according to claim 1 can anti-return blood infusion apparatus, it is characterised in that: the puncture outfit be equipped with into
Air valve.
3. one kind according to claim 1 can anti-return blood infusion apparatus, it is characterised in that: the outer interlayer use PVC
Material is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820027378.4U CN209075674U (en) | 2018-01-08 | 2018-01-08 | It is a kind of can anti-return blood infusion apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820027378.4U CN209075674U (en) | 2018-01-08 | 2018-01-08 | It is a kind of can anti-return blood infusion apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209075674U true CN209075674U (en) | 2019-07-09 |
Family
ID=67112049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820027378.4U Expired - Fee Related CN209075674U (en) | 2018-01-08 | 2018-01-08 | It is a kind of can anti-return blood infusion apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209075674U (en) |
-
2018
- 2018-01-08 CN CN201820027378.4U patent/CN209075674U/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: 20190709 Termination date: 20200108 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |