CN106237480A - A kind of reduce the pre-filled catheter flusher injecting resistance - Google Patents
A kind of reduce the pre-filled catheter flusher injecting resistance Download PDFInfo
- Publication number
- CN106237480A CN106237480A CN201610620889.2A CN201610620889A CN106237480A CN 106237480 A CN106237480 A CN 106237480A CN 201610620889 A CN201610620889 A CN 201610620889A CN 106237480 A CN106237480 A CN 106237480A
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- CN
- China
- Prior art keywords
- piston
- resistance
- injecting
- reduce
- push rod
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- 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.)
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M2025/0019—Cleaning catheters or the like, e.g. for reuse of the device, for avoiding replacement
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biophysics (AREA)
- Pulmonology (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The present invention reduces the pre-filled catheter flusher injecting resistance, including syringe, push rod, piston and helmet, it is characterised by: the periphery of described piston is provided with one or more layers Y shape sealing lip along its length, Y shape sealing lip outwards injects the opposite direction of content motion towards piston, to reduce resistance when injecting, increase reciprocal resistance, it is to avoid content backflow and the generation of blood back phenomenon.The pre-filled catheter flusher of the present invention, by arranging one or more layers Y shape sealing lip in the periphery of piston, when outwards injecting content, Y shape sealing lip bends backward, reduces the frictional resistance between piston and syringe inwall；Backward during pull piston, outside Y shape sealing lip, add the frictional force between piston and syringe inwall, it is to avoid content backflow and the generation of blood back phenomenon.
Description
Technical field
The present invention relates to a kind of pre-filled catheter flusher, in particular, particularly relate to a kind of by arrange one layer or
Multilamellar reduces the pre-filled catheter flusher injecting resistance towards the Y shape sealing lip of push rod afterbody.
Background technology
In recent years, the pre-filled catheter flusher being pre-charged with medicinal liquid in medicine packaging material is widely used.Such lead
Pipe irrigator need not extract medicinal liquid from medicine bottle when irrigating catheter, shortens the time of flushing operation, it is to avoid medicinal liquid is being taken out
It is contaminated during taking.
In prior art, catheter flusher passes through piston and the interference fit of syringe, and piston generation elastic deformation realizes punching
Wash the sealing of device.Medical personnel's especially nurse's great majority are women, and generally the situation that power is overweight is injected in reflection.Simultaneously in order to keep away
Exempt from medicinal liquid to reflux the blood back that caused, also need the piston of irrigator to have position retaining function well, i.e. piston and be difficult to or not
Can retreat, but existing irrigator does not the most have this function.
Summary of the invention
The present invention is for the shortcoming overcoming above-mentioned technical problem, it is provided that a kind of reduce the pre-filled conduit injecting resistance
Irrigator.
The present invention reduces the pre-filled catheter flusher injecting resistance, including syringe, push rod, piston and helmet, lives
Plug is fixed on the front end of push rod and is placed in syringe, and in syringe, storage has the content of irrigating catheter；The front end of syringe is provided with
The joint matched with conduit, helmet is connected with joint to realize sealing it；It is characterized in that: the edge, periphery of described piston
Its length direction is provided with one or more layers Y shape sealing lip, and Y shape sealing lip outwards injects the negative side of content motion towards piston
To, to reduce resistance when injecting, increase reciprocal resistance, it is to avoid content backflow and the generation of blood back phenomenon.
The present invention reduces the pre-filled catheter flusher injecting resistance, and described Y shape sealing lip is formed with ramp
Formed with lower inclined plane, between adjacent Y shape sealing lip, be formed with connection inclined-plane；The angle writing down inclined-plane and be connected inclined-plane is α, upper tiltedly
Face is β with the angle of push rod axis, and the span of described α is 50 °～65 °, and the span of β is 15 °～85 °.
The present invention reduces the pre-filled catheter flusher injecting resistance, and described joint is outer cone female Luer, protects
Cap is made up of female cone female Luer and protection set, and female cone female Luer is connected with outer cone female Luer, it is achieved joint
Sealing；The protection of the head that achieves a butt joint is overlapped in protection.
The present invention reduces the pre-filled catheter flusher injecting resistance, and the rear end of described push rod is provided with easy to use
The groove that person injects.
The present invention reduces the pre-filled catheter flusher injecting resistance, and described piston is connected by screw thread with push rod
Connecing, the top of push rod is provided with the external screw thread matched with piston.
The present invention reduces the pre-filled catheter flusher injecting resistance, and described helmet, syringe and push rod are macromolecule
Material, piston is elastomeric material.
The present invention reduces the pre-filled catheter flusher injecting resistance, and described helmet, syringe and push rod are polypropylene
Material, the material of described piston is butyl rubber.
The present invention reduces the pre-filled catheter flusher injecting resistance, and described content is liquid.
The present invention reduces the pre-filled catheter flusher injecting resistance, and described content is the chloride injection of 0.9%
Liquid.
The invention has the beneficial effects as follows: the pre-filled catheter flusher of the present invention, by arranging one layer in the periphery of piston
Or multilamellar Y shape sealing lip, and guarantee that Y shape sealing lip outwards injects the opposite direction of content towards piston, when outwards injecting content
During thing, Y shape sealing lip bends backward so that the external diameter of piston reduces, and reduces the frictional resistance between piston and syringe inwall,
Be conducive to outwards injecting content；When pull piston backward, open outside Y shape sealing lip so that the external diameter of piston increases, and adds
Frictional force between piston and syringe inwall, limit the setback of piston, it is to avoid content backflow and blood back phenomenon
Occur.
Accompanying drawing explanation
Fig. 1 is the structural representation of the pre-filled catheter flusher of the present invention；
Fig. 2 is the sectional view of the pre-filled catheter flusher of the present invention；
Fig. 3 is the structural representation that in the present invention, Y shape sealing lip matches with syringe；
Fig. 4 is the structural representation at push rod rear portion in the present invention；
Fig. 5 is the perspective view of push rod in the present invention；
Fig. 6 is the structural representation that helmet uses the catheter flusher of regular screw threads union joint.
In figure: 1 helmet, 2 syringes, 3 contents, 4 pistons, 5 push rods, 6 joints, 7 outer cone female Luer, 8 female cone Shandongs
That joint, 9 protection sets, 10 grooves, 11 piston matrixes, 12 Y shape sealing lips, 13 ramps, 14 lower inclined planes, 15 connection inclined-planes, 16
External screw thread, 17 regular screw threads union joints.
Detailed description of the invention
The invention will be further described with embodiment below in conjunction with the accompanying drawings.
As depicted in figs. 1 and 2, sets forth the section view of the structural representation of the pre-filled catheter flusher of the present invention
Figure, shown pre-filled catheter flusher is made up of syringe 2, piston 4, push rod 5, joint 6, helmet 1 and content 3, shown pin
Cylinder 2 is cylindrical barrel shape, the internal cavity for storage content 3.Joint 6 is arranged at the front end of syringe 2, and helmet 1 is arranged at and connects
On 6, it is achieved the sealing of butt joint 6；During use, helmet 1 is removed from joint 6, and joint 6 is matched with conduit, i.e.
Content 3 can be passed through in conduit by joint 6.Shown push rod 5 and piston 4 are positioned in syringe 2, and piston 4 is fixed on push rod 5
Front end.
As it is shown on figure 3, give the structural representation that in the present invention, Y shape sealing lip matches with syringe, shown Y shape is close
Envelope lip 12 be one or more layers, the length direction along piston 4 is arranged at the periphery of piston 4, Y shape sealing lip 12 towards with piston
4 directions of motion when injecting content 3 are contrary.This structure so that Y shape sealing lip 12 has resistance when content is injected in reduction
The effect of resistance when power, increase opposite direction motion.
It is formed with ramp 13 and lower inclined plane 14, for arranging the work of multilamellar Y shape sealing lip 12 on shown Y shape sealing lip 12
For plug, it is connected between two Y shape sealing lips 12 and is formed with connection inclined-plane 15, this structure of Y shape sealing lip 12, it is ensured that pushing away
During note, Y shape sealing lip 12 is subject to and injects frictional force generation elastic deformation in opposite direction, now angle reduction, angle β
Reducing, the effective diameter of piston 4 reduces, and resistance reduces；Contrary in draw process, described Y type sealing lip 12 by and take out
Drawing frictional force generation elastic deformation in opposite direction, now angle increases, angle β increases, and the effective diameter of piston 4 increases, resistance
Power increases.
In order to the using effect making Y shape sealing lip 12 is optimal, set inclined-plane 14 be connected inclined-plane 15 angle be α, upper tiltedly
Face 13 is 50 °～65 ° with the span that angle is β, α of push rod 5 axis, and the span of β is 15 °～85 °, can be effective
Reduce and inject resistance and increase the resistance of opposite direction motion.
Shown in joint 6 use outer cone female Luer 7, helmet 1 to use to be made up of female cone female Luer 8 and protective cover 9
Structure, by coordinating of female cone female Luer 8 and outer cone female Luer 7, can achieve a butt joint 6 excellent sealing.In
After the coordinating of circular cone female Luer 8 and outer cone female Luer 7, protection set 9 can realize the protection to female cone female Luer 8
Effect.Certainly, helmet 1 may be used without regular screw threads union joint, as shown in Figure 6, gives helmet and uses regular screw threads union joint
The structural representation of catheter flusher.
As shown in Figure 4, the structural representation at push rod rear portion in the present invention is given, as it is shown in figure 5, give in the present invention
The perspective view of push rod, the rear end of shown push rod 5 is provided with is easy to the groove 10 that user is injected, recessed by arranging
Groove 10 injecting or can increase comfort during pull push rod 5, reduces the risk of user scratching fingers.Shown piston 4 with
Push rod 5 is connected by screw thread, and the front end of shown push rod 5 is provided with the external screw thread 16 matched with piston 4.
Described helmet 1, syringe 2 and push rod 5 use macromolecular material, such as polypropylene material；Piston is elastomeric material, such as fourth
Base rubber；Making catheter flusher can stand moist heat sterilization and not deform, the sterilising conditions of moist heat sterilization can be 100
Degrees Celsius more than 60 minutes, 116 degrees Celsius more than 30 minutes or 121 degrees Celsius more than 15 minutes.Shown content 3 is liquid
Body, such as the sodium chloride injection of 0.9%.
In order to prove that the pre-filled catheter flusher of the present invention obtains structure and can reduce and inject resistance, with the most common
Pre-encapsulated injector is reference substance, chooses the syringe of equal nominal capacity, fills content (0.9% sodium chloride of equal volume
Injection), carry out injecting power test under same environment, test data is shown in Table 1, unit: cattle (N).
Table 1
| Trial target | Initial injects power | Inject the power of averagely injecting after nominal capacity 1/5th | Trial target | Initial injects power | Inject the power of averagely injecting after nominal capacity 1/5th |
| Reference substance 1 | 29.0N | 3.8N | The present invention 1 | 26.7N | 2.7N |
| Reference substance 2 | 34.0N | 3.5N | The present invention 2 | 24.6N | 2.3N |
| Reference substance 3 | 33.8N | 2.9N | The present invention 3 | 23.7N | 2.1N |
Test explanation, whether initial injects the power of averagely injecting that after power still injects certain capacity, the power of injecting tends to be steady, and makes
With the piston of the structure of the present invention, inject power the least.
Claims (9)
1. can reduce the pre-filled catheter flusher injecting resistance, including syringe (2), push rod (5), piston (4) and helmet
(1), piston is fixed on the front end of push rod and is placed in syringe, and in syringe, storage has the content (3) of irrigating catheter；Before syringe
End is provided with the joint (6) matched with conduit, and helmet is connected with joint to realize sealing it；It is characterized in that: described
The periphery of piston is provided with one or more layers Y shape sealing lip (12) along its length, and Y shape sealing lip is outwards injected towards piston
The opposite direction of content motion, to reduce resistance when injecting, increases reciprocal resistance, it is to avoid content backflow and blood back are existing
The generation of elephant.
The most according to claim 1 reduce the pre-filled catheter flusher injecting resistance, it is characterised in that: described Y shape
It is formed with ramp (13) on sealing lip (12) and lower inclined plane (14) is formed, between adjacent Y shape sealing lip, be formed with connection inclined-plane
(15)；The angle writing down inclined-plane and be connected inclined-plane is α, and ramp is β with the angle of push rod (5) axis, the span of described α
Being 50 °～65 °, the span of β is 15 °～85 °.
The most according to claim 1 and 2 reduce the pre-filled catheter flusher injecting resistance, it is characterised in that: described
Joint (6) is outer cone female Luer (7), and helmet (1) is made up of female cone female Luer (8) and protection set (9), female cone Shandong
You are connected with outer cone female Luer by joint, it is achieved the sealing of joint；The protection of the head that achieves a butt joint is overlapped in protection.
The most according to claim 1 and 2 reduce the pre-filled catheter flusher injecting resistance, it is characterised in that: described
The rear end of push rod (5) is provided with the groove (10) be easy to user and inject.
The most according to claim 1 and 2 reduce the pre-filled catheter flusher injecting resistance, it is characterised in that: described
Piston (4) is connected by screw thread with push rod (5), and the top of push rod is provided with the external screw thread (16) matched with piston.
The most according to claim 1 and 2 reduce the pre-filled catheter flusher injecting resistance, it is characterised in that: described
Helmet (1), syringe (2) and push rod (5) are macromolecular material, and piston (4) is elastomeric material.
The most according to claim 6 reduce the pre-filled catheter flusher injecting resistance, it is characterised in that: described helmet
(1), syringe (2) and push rod (5) be polypropylene material, the material of described piston is butyl rubber.
The most according to claim 1 and 2 reduce the pre-filled catheter flusher injecting resistance, it is characterised in that: described
Content (3) is liquid.
The most according to claim 8 reduce the pre-filled catheter flusher injecting resistance, it is characterised in that: described content
Thing (3) is the sodium chloride injection of 0.9%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610620889.2A CN106237480A (en) | 2016-08-02 | 2016-08-02 | A kind of reduce the pre-filled catheter flusher injecting resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610620889.2A CN106237480A (en) | 2016-08-02 | 2016-08-02 | A kind of reduce the pre-filled catheter flusher injecting resistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106237480A true CN106237480A (en) | 2016-12-21 |
Family
ID=57605810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610620889.2A Withdrawn CN106237480A (en) | 2016-08-02 | 2016-08-02 | A kind of reduce the pre-filled catheter flusher injecting resistance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106237480A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108926752A (en) * | 2018-06-29 | 2018-12-04 | 广东先来医疗器械有限公司 | A kind of hose safety transfusion needle |
| CN109647808A (en) * | 2018-12-24 | 2019-04-19 | 济民健康管理股份有限公司 | Pre-filled catheter flusher and pre-filled catheter flusher assemble output method |
| WO2020000132A1 (en) * | 2018-06-25 | 2020-01-02 | 江苏采纳医疗科技有限公司 | Pre-filling type catheter flusher cap and pre-filling type catheter flusher using same |
| CN113546234A (en) * | 2020-04-24 | 2021-10-26 | 苏州医本生命科技有限公司 | Medicinal preparation with tracing function for vascular intervention and its delivery system |
-
2016
- 2016-08-02 CN CN201610620889.2A patent/CN106237480A/en not_active Withdrawn
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020000132A1 (en) * | 2018-06-25 | 2020-01-02 | 江苏采纳医疗科技有限公司 | Pre-filling type catheter flusher cap and pre-filling type catheter flusher using same |
| CN108926752A (en) * | 2018-06-29 | 2018-12-04 | 广东先来医疗器械有限公司 | A kind of hose safety transfusion needle |
| CN108926752B (en) * | 2018-06-29 | 2024-06-07 | 广东先来医疗科技有限公司 | Hose safety transfusion needle |
| CN109647808A (en) * | 2018-12-24 | 2019-04-19 | 济民健康管理股份有限公司 | Pre-filled catheter flusher and pre-filled catheter flusher assemble output method |
| CN109647808B (en) * | 2018-12-24 | 2019-11-12 | 济民健康管理股份有限公司 | Pre-filled catheter flusher and pre-filled catheter flusher assemble output method |
| CN113546234A (en) * | 2020-04-24 | 2021-10-26 | 苏州医本生命科技有限公司 | Medicinal preparation with tracing function for vascular intervention and its delivery system |
| CN113546234B (en) * | 2020-04-24 | 2022-09-20 | 苏州医本生命科技有限公司 | Medicinal preparation with tracing function for vascular intervention and its delivery system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| CB02 | Change of applicant information |
Address after: 250101 Ji'nan high tech Zone, Shandong Road, No. 2222 Applicant after: Shandong saikesaisi Biological Technology Co., Ltd. Address before: 250101 Ji'nan high tech Zone, Shandong Road, No. 2222 Applicant before: Shandong Success Pharmaceutical Technology Co., Ltd. |
|
| COR | Change of bibliographic data | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 250101 No. 2222 Pioneer Road, Jinan High-tech Zone, Shandong Province Applicant after: SEXES BIOLOGICAL TECHNOLOGY CO., LTD. Address before: 250101 No. 2222 Pioneer Road, Jinan High-tech Zone, Shandong Province Applicant before: Shandong saikesaisi Biological Technology Co., Ltd. |
|
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20161221 |