CN204307140U - Blood return preventing infusion device - Google Patents
Blood return preventing infusion device Download PDFInfo
- Publication number
- CN204307140U CN204307140U CN201420694733.5U CN201420694733U CN204307140U CN 204307140 U CN204307140 U CN 204307140U CN 201420694733 U CN201420694733 U CN 201420694733U CN 204307140 U CN204307140 U CN 204307140U
- Authority
- CN
- China
- Prior art keywords
- hydrophilic
- dropping funnel
- infusion device
- air film
- blood return
- 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
This utility model provides a kind of blood return preventing infusion device, comprise dropping funnel, buoyancy aid is provided with in dropping funnel, open space is provided with above buoyancy aid, the side of open space has through hole, the below of open space is provided with below hydrophilic not close air film or buoy a support member, and support member comprises support bar and lower support orifice ring, the lower support orifice ring below support member is provided with hydrophilic not close air film.The advantage of this utility model blood return preventing infusion device is that structure is simple, can anti-return blood, the time of refluxing can be controlled exactly, because hydrophilic not close air film is arranged on buoyancy aid, a large amount of transfusion is flowed out through dropping funnel outlet, only has a small amount of residual liquid to be exported, so hydrophilic not close air film can not block by hydrophilic not close air film, residual liquid flows out unobstructed, and flow is accurate.
Description
Technical field
This utility model relates to technical field of medical instruments, particularly a kind of blood return preventing infusion device.
Background technology
Present transfusion device is various in style, and the applying for a patent of blood return prevention also has multiple, but these application structure of patents are complicated, blood return prevention weak effect, the basic object that just cannot reach blood return prevention had.Apply for a patent micropore blood returning preventing infusion (patent No.: 201110126833.9) be exactly one of them, if its closing membrane is thin, because periphery does not have stressed, thin film cannot be shaped; If can be shaped just have certain thickness, because technique and structure limit, two rigid faces can not positive confinements dead, institute's residual liquid will soon flow, and does not reach slow release and prevents the blood back of certain hour.
Useful hydrophilic film reaches slow release effect in addition, can not reach good effect.Because fixing hydrophilic film is in longer flow liquid or the larger flow liquid of concentration, fenestra easily blocks; If when next bottle continues transfusion again, transfusion is just not smooth, and flow velocity produces difficulty, also has certain difficulty like this to slow release blood return prevention.
Utility model content
The purpose of this utility model is that development one can flow smooth and easy, and structure is simple, carries out the blood return preventing infusion device closed by hydrophilic film.
This utility model blood return preventing infusion device, comprise dropping funnel, buoyancy aid is provided with in dropping funnel, open space is provided with above described buoyancy aid, the side of open space has through hole, the below of open space is provided with below hydrophilic not close air film or buoyancy aid a support member, and described support member comprises support bar and lower support orifice ring, the lower support orifice ring below support member is provided with hydrophilic not close air film.
Further, the lower limb of described hydrophilic not close air film is provided with locating ring, and the height of locating ring is less than the height of outlet boss below dropping funnel, and external diameter is greater than the external diameter of dropping funnel outlet boss.
Further, the top of described buoyancy aid is provided with positioning bar.
Further, be provided with buoyancy aid lifting height intercept layer in described dropping funnel, described dropping funnel outlet is provided with a tooth platform hole, and the height of boss hole is 4-8mm.
Further, the height of described locating ring is 3-6mm, and the inwall of locating ring is inclined-plane.
Further, the height of described through hole and hydrophilic not close air film is 3-5mm.
The advantage of this utility model blood return preventing infusion device is that structure is simple, can anti-return blood, the time of refluxing can be controlled exactly, because hydrophilic not close air film is arranged on buoy, a large amount of transfusion is flowed out through dropping funnel outlet, only has a small amount of residual liquid to be exported, so hydrophilic not close air film can not block by hydrophilic not close air film, residual liquid flows out unobstructed, and flow is accurate.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model blood return preventing infusion device.
Fig. 2 is the structural representation of buoyancy aid in this utility model blood return preventing infusion device.
Fig. 3 is the top view of buoyancy aid in this utility model blood return preventing infusion device.
Fig. 4 is another structural representation of buoyancy aid in this utility model blood return preventing infusion device.
Fig. 5 is the upward view of the support member in another structure of buoyancy aid in this utility model blood return preventing infusion device.
Detailed description of the invention
Below in conjunction with drawings and Examples, this utility model is further illustrated.
As Figure 1-Figure 5, this utility model provides a kind of blood return preventing infusion device, comprise dropping funnel 1, buoyancy aid 2 is provided with in dropping funnel 1, be provided with open space above buoyancy aid 2, the side of open space have through hole 3, the below of open space is provided with below hydrophilic not close air film 5 or buoyancy aid 2 support member, support member comprises support bar 6 and lower support orifice ring 7, the lower support orifice ring 7 below support member is provided with hydrophilic not close air film 5.
Further, the lower limb of hydrophilic not close air film 5 is provided with locating ring 4, and the height of locating ring 4 is less than the height of outlet boss below dropping funnel 1, and external diameter is greater than the external diameter of dropping funnel 1 outlet boss.
Further, the top of buoyancy aid 2 is provided with positioning bar 9.
Further, be provided with buoyancy aid lifting height intercept layer 8 in dropping funnel 1, dropping funnel 1 outlet is provided with a boss hole, and the height of boss hole is 4-8mm.
Further, the height of locating ring 4 is 3-6mm, and the inwall of locating ring 4 is inclined-plane.
Further, the height of through hole 3 and hydrophilic not close air film is 3-5mm.
This utility model blood return preventing infusion device is achieved in that and first infuses to patient according to present infusion method.When infusing a certain amount of, buoyancy aid declines under gravity, hydrophilic not close air film shuts dropping funnel outlet, the residual liquid stayed is according to the Kong Su slowly slow release of hydrophilic not close air film, such transfusion is step-by-step to be carried out, therefore transfusion device can not blood back, until the residual liquid above hydrophilic not close air film is totally lost, air also can not carry out, certain residual liquid is also had to close dead locating ring periphery, air in dropping funnel also can not flow into, even if there is a small amount of residual liquid to flow into along sealing surface, also only have and close upper residual liquid inflow, residual liquid under sealing surface can not flow into, residual liquid under sealing surface shuts closed-loop all the time.
Claims (6)
1. a blood return preventing infusion device, it is characterized in that: comprise dropping funnel, buoyancy aid is provided with in dropping funnel, open space is provided with above described buoyancy aid, the side of open space has through hole, the below of open space is provided with below hydrophilic not close air film or buoy a support member, and described support member comprises support bar and lower support orifice ring, the lower support orifice ring below support member is provided with hydrophilic not close air film.
2. a kind of blood return preventing infusion device according to claim 1, is characterized in that: the lower limb of described hydrophilic not close air film is provided with locating ring, and the height of locating ring is less than the height of outlet boss below dropping funnel, and external diameter is greater than the external diameter of dropping funnel outlet boss.
3. a kind of blood return preventing infusion device according to claim 1, is characterized in that: the top of described buoyancy aid is provided with positioning bar.
4. a kind of blood return preventing infusion device according to claim 1, is characterized in that: be provided with buoyancy aid lifting height intercept layer in described dropping funnel, and described dropping funnel outlet is provided with a boss hole, and the height of boss hole is 4-8mm.
5. a kind of blood return preventing infusion device according to claim 2, is characterized in that: the height of described locating ring is 3-6mm, and the inwall of locating ring is inclined-plane.
6. a kind of blood return preventing infusion device according to claim 1, is characterized in that: the height of described through hole and hydrophilic not close air film is 3-5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420694733.5U CN204307140U (en) | 2014-11-19 | 2014-11-19 | Blood return preventing infusion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420694733.5U CN204307140U (en) | 2014-11-19 | 2014-11-19 | Blood return preventing infusion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204307140U true CN204307140U (en) | 2015-05-06 |
Family
ID=53129476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420694733.5U Expired - Fee Related CN204307140U (en) | 2014-11-19 | 2014-11-19 | Blood return preventing infusion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204307140U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104338199A (en) * | 2014-11-19 | 2015-02-11 | 何前国 | Blood return preventing infusion device |
-
2014
- 2014-11-19 CN CN201420694733.5U patent/CN204307140U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104338199A (en) * | 2014-11-19 | 2015-02-11 | 何前国 | Blood return preventing infusion device |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150506 Termination date: 20181119 |