CN209204312U - Anti- venous return remaining needle - Google Patents
Anti- venous return remaining needle Download PDFInfo
- Publication number
- CN209204312U CN209204312U CN201821603366.8U CN201821603366U CN209204312U CN 209204312 U CN209204312 U CN 209204312U CN 201821603366 U CN201821603366 U CN 201821603366U CN 209204312 U CN209204312 U CN 209204312U
- Authority
- CN
- China
- Prior art keywords
- remaining needle
- casing
- extension tube
- venous return
- needle
- 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
- 239000007788 liquid Substances 0.000 claims abstract description 18
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 abstract description 5
- 238000001802 infusion Methods 0.000 description 11
- 208000007536 Thrombosis Diseases 0.000 description 5
- 239000008280 blood Substances 0.000 description 5
- 210000004369 blood Anatomy 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses anti-venous return remaining needles, including casing and remaining needle, the tail portion of casing is connected with catheter block, sealing-plug is provided in catheter block, bifurcated pipe is communicated on catheter block and on the side wall of casing, bifurcated pipe is connected with extension tube, extension tube is connected with extension tube socket, liquid stopping clamp is provided on the outer wall of extension tube, remaining needle is located in casing after passing through sealing-plug, the tail portion of remaining needle is provided with pedestal, casing is provided with movable flap far from the end of catheter block, the outside of casing is cased with needle cap, it can effectively prevent venous return, and it is infused when stopping and does not need to carry out tube sealing, reduce the workload of nurse.
Description
Technical field
The utility model belongs to field of medical article technology, is related to anti-venous return remaining needle.
Background technique
Venous detaining needle is widely used in infusion, but the end of existing remaining needle casing is opening, and nothing is closed
The function of conjunction, then easily cause venous return in without infusion process, and the venous blood of reflux forms fritter in remaining needle
Thrombus in turn results in the blocking of remaining needle, prevents liquid from smoothly flowing, while being easily brought into fritter thrombus in infusion
In blood, and then thrombus is formed, caused damages to body, and keep workload of the nurse big, infusion need to carry out tube sealing work when stopping.
Utility model content
The purpose of the utility model is to provide anti-venous return remaining needle, solving remaining needle in the prior art easily returns blood
Flowing to formation thrombus in needle causes syringe needle to block, and the fritter thrombus formed in needle is inputted easily thrombosed in blood ask
Topic.
The utility model is the technical scheme adopted is that anti-venous return remaining needle, including casing and remaining needle, casing
Tail portion is connected with catheter block, is provided with sealing-plug in catheter block, is communicated with bifurcated pipe on catheter block and on the side wall of casing,
Bifurcated pipe is connected with extension tube, and extension tube is connected with extension tube socket, liquid stopping clamp is provided on the outer wall of extension tube, and remaining needle passes through
It is located in casing after sealing-plug, the tail portion of remaining needle is provided with pedestal, and casing is provided with movable flap far from the end of catheter block, set
The outside of pipe is cased with needle cap.
The utility model is further characterized in that:
Movable flap is to offer three gaps the end of casing is radially impartial, and three gaps are able to carry out out
It closes.
The needle wing is provided on pedestal.
The two sides of the needle wing are equipped with several protrusions.
Strip-shaped hole is provided on liquid stopping clamp, one end aperture in hole is greater than the outer diameter of extension tube, and the other end aperture in hole is less than
The double wall thickness of extension tube.
Extension tube socket is Y-shaped structure.
The beneficial effects of the utility model are: the anti-venous return remaining needle of the utility model, by being arranged in cannula tip
There is movable flap, when being infused, the pressure in casing increases, then movable flap opening is normally infused, when stopping is infused
When, without atmospheric pressure in casing, then movable flap is closed, venous return can be effectively prevent, and be infused when stopping do not need into
Row tube sealing reduces the workload of nurse.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the anti-venous return remaining needle of the utility model；
Fig. 2 is the structural schematic diagram of the movable flap of the anti-venous return remaining needle of the utility model；
Fig. 3 is the structural schematic diagram that the movable flap of the anti-venous return remaining needle of the utility model is opened；
Fig. 4 is the structural schematic diagram of the liquid stopping clamp of the anti-venous return remaining needle of the utility model.
In figure, 1. casings, 2. remaining needles, 3. catheter blocks, 4. sealing-plugs, 5. pedestals, 6. bifurcated pipes, 7. extension tubes, 8. prolong
Long tube socket, 9. needle caps, the 10. needle wings, 11. protrusions, 12. liquid stopping clamps, 13. holes, 14. movable flaps.
Specific embodiment
The utility model is described in detail with reference to the accompanying drawings and detailed description.
The anti-venous return remaining needle of the utility model, as shown in Figure 1, including casing 1 and remaining needle 2, the tail portion of casing 1 connects
It is connected to catheter block 3, sealing-plug 4, the matching that the lateral wall of sealing-plug 4 and the inner sidewall of catheter block 3 seal are provided in catheter block
It closes, for being sealed to catheter block 3, bifurcated pipe 6 is communicated on catheter block 3 and on the side wall of casing 1, bifurcated pipe 6 connects
It is connected to extension tube 7, extension tube 7 is used in medical fluid inflow catheter seat 3, then enters Venous Blood pipe, extension tube 7 from casing 1
It is connected with the extension tube socket 8 of Y shape, what remaining needle 2 sealed is located in casing 1 after sealing-plug 4, and the tail portion of remaining needle 2 is arranged
There is pedestal 5, after remaining needle is extracted from catheter block 3, sealing-plug 4 immediately seals the pin hole of remaining needle 2, and casing 1 is separate to lead
The end of tube socket 3 is provided with movable flap, and the outside of casing 1 is cased with needle cap 9, and needle cap 9 is used for protection sleeve pipe 1 and remaining needle 2, pedestal
It is provided with the needle wing 10 on 5, liquid stopping clamp 12 is provided on the outer wall of extension tube 7.
As shown in Figures 2 and 3, movable flap is to offer three gaps the end of casing 1 is radially impartial, then covers
The end of pipe 1 forms three flap structures, and be able to carry out folding in three gaps: in infusion process, pressure is larger, movable flap
(three flap structures) is opened under the action of liquid, then is infused；When stopping infusion, no atmospheric pressure, then pressure is lower, living
Moving vane (three flap structures) is then closed, and can prevent venous backflow, and stops not needing tube sealing when infusion, reduces nurse's
Workload.
The two sides of the needle wing 10 are equipped with several protrusions 11, are capable of increasing friction, and easily controllable remaining needle is extracted and punctured.
As shown in figure 4, being provided with strip-shaped hole 13 on liquid stopping clamp 12, one end aperture in hole 13 is greater than the outer diameter of extension tube 7, hole
13 other end aperture is less than the double wall thickness of extension tube 7, when needing to be infused, extension tube 7 is placed in the biggish one end in aperture, then
Liquid can smooth flow, stop infusion when, then extension tube 7 is placed in the smaller one end in aperture, keeps the two side walls of extension tube 7 tight
Closely connected conjunction, no circulation passage, then no liquid leaves, that is, stops infusion, can also be by selecting extension tube 7 being placed in strip-shaped hole 13
Different location adjust the output flow of liquid.
In use, pulling up needle cap 9, remaining needle and casing are punctured into vein blood vessel, remaining needle is extracted, is carried out defeated
Liquid adjusts the position of 12 mesoporous 13 of liquid stopping clamp, and to adjust fluid flow, then the movable flap of 1 end of casing is opened；Stop infusion
When, then the hole 13 in liquid stopping clamp 12 is placed in the position less than 7 two sides wall thickness of extension tube, then no liquid leaves, while in nothing
Under the action of atmospheric pressure, then the movable flap of 1 end of casing is closed.
The anti-venous return remaining needle of the utility model, by being provided with movable flap in cannula tip, when being infused, set
Pressure in pipe increases, then movable flap opening is normally infused, without atmospheric pressure in casing, then movable when stopping infusion
Valve closure, can effectively prevent venous return, and is infused when stopping and does not need to carry out tube sealing, reduce the work of nurse
Amount.
Claims (6)
1. anti-venous return remaining needle, it is characterised in that: including casing (1) and remaining needle (2), the tail portion of described sleeve pipe (1) connects
It is connected to catheter block (3), is provided in the catheter block sealing-plug (4), the side wall on the catheter block (3) and close to casing (1)
On be communicated with bifurcated pipe (6), the bifurcated pipe (6) is connected with extension tube (7), and the extension tube (7) is connected with extension tube socket
(8), it is provided with liquid stopping clamp (12) on the outer wall of extension tube (7), the remaining needle (2) passes through sealing-plug (4) and is located at casing (1) afterwards
In, the tail portion of the remaining needle (2) is provided with pedestal (5), and described sleeve pipe (1) is provided with activity far from the end of catheter block (3)
Valve, the outside of casing (1) are cased with needle cap (9).
2. anti-venous return remaining needle according to claim 1, it is characterised in that: the movable flap is in casing (1)
End is radially impartial to offer three gaps, and three gaps are able to carry out folding.
3. anti-venous return remaining needle according to claim 1, it is characterised in that: be provided with the needle wing on the pedestal (5)
(10)。
4. anti-venous return remaining needle according to claim 3, it is characterised in that: the two sides of the needle wing (10) are equipped with
Several raised (11).
5. anti-venous return remaining needle according to claim 1, it is characterised in that: be provided with item on the liquid stopping clamp (12)
Shape hole (13), one end aperture of the hole (13) are greater than the outer diameter of extension tube (7), and the other end aperture of the hole (13), which is less than, prolongs
The double wall thickness of long tube (7).
6. anti-venous return remaining needle according to claim 1, it is characterised in that: the extension tube socket (8) is Y-junction
Structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821603366.8U CN209204312U (en) | 2018-09-29 | 2018-09-29 | Anti- venous return remaining needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821603366.8U CN209204312U (en) | 2018-09-29 | 2018-09-29 | Anti- venous return remaining needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209204312U true CN209204312U (en) | 2019-08-06 |
Family
ID=67455102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821603366.8U Expired - Fee Related CN209204312U (en) | 2018-09-29 | 2018-09-29 | Anti- venous return remaining needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209204312U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111840701A (en) * | 2020-08-26 | 2020-10-30 | 延安大学附属医院 | A negative pressure anti-venous return indwelling needle |
-
2018
- 2018-09-29 CN CN201821603366.8U patent/CN209204312U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111840701A (en) * | 2020-08-26 | 2020-10-30 | 延安大学附属医院 | A negative pressure anti-venous return indwelling needle |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190806 Termination date: 20200929 |