CN106075648A - A kind of infusion needle limiting flow - Google Patents
A kind of infusion needle limiting flow Download PDFInfo
- Publication number
- CN106075648A CN106075648A CN201610752701.XA CN201610752701A CN106075648A CN 106075648 A CN106075648 A CN 106075648A CN 201610752701 A CN201610752701 A CN 201610752701A CN 106075648 A CN106075648 A CN 106075648A
- Authority
- CN
- China
- Prior art keywords
- needle
- limiting plate
- current limiting
- flow
- needle tubing
- 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.)
- Pending
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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
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
-
- 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
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
- A61M5/16804—Flow controllers
-
- 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
- A61M2205/00—General characteristics of the apparatus
- A61M2205/33—Controlling, regulating or measuring
- A61M2205/3331—Pressure; Flow
Landscapes
- Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
nullThe invention discloses a kind of infusion needle limiting flow，Including spike body，Described spike body includes needle tubing and needle point，Described needle tubing one end connects needle point，One end connects syringe outlet，Needle tubing is hollow circular cylinder，Described needlepoint side cross section is triangle，Needle point front end arranges current limiting plate，Described current limiting plate top is triangle，Bottom is half elliptic，Crown center arranges circular hole，Bottom arranges liquid outlet，The current limiting plate left and right sides arranges tap hole，Described liquid outlet is semiellipse，The syringe needle of restriction flow of the present invention，By arranging current limliting projection in needle tubing、At needle point, current limiting plate is set to reduce the flow of liquid，Reduce the liquid outlet quantity that spike body is overall，With the use of actuator，Can effectively slow down fluid flow，Liquid outlet is set simultaneously、Circular hole and tap hole are to avoid out liquid to cross the slow and problem of blood back，More easily regulate，Using effect is more preferable.
Description
Technical field
The invention belongs to medical instruments field, be specifically related to a kind of infusion needle limiting flow.
Background technology
Typically in infusion process, need to utilize the flow regulator on tube for transfusion to be adjusted, and the restriction of flow
Need the most by virtue of experience regulation to limit the actuator of flow, but yet suffer from too fast or the slowest situation, cross slow only wave
Take patient's time, however it is necessary that the liquid of slowly transfusion is accelerated transfusion and then can the most then be caused discomfort, heavy then affect drug effect and jeopardize strong
The situation of health exists, thus operation easier is very big, existing reduces fluid flow by the way of reducing tip diameter.
Summary of the invention
For solving the problems referred to above, the invention discloses a kind of infusion needle limiting flow.
A kind of infusion needle limiting flow, including spike body, described spike body includes needle tubing and needle point, described pin
Pipe one end connects needle point, and one end connects syringe outlet, and needle tubing is hollow circular cylinder, and described needlepoint side cross section is triangle, pin
Crack tip arranges current limiting plate, and described current limiting plate top is triangle, and bottom is half elliptic, and crown center arranges circular hole, bottom
Arranging liquid outlet, the current limiting plate left and right sides arranges tap hole, and described liquid outlet is semiellipse.
The needle point top of the needle tip of the present invention is triangle, it is possible to penetrate skin more swimmingly, and needle point front end is arranged
Current limiting plate, spike body is set to obturator, needle point arranges circular hole, liquid outlet and tap hole simultaneously is liquid outflow portion
Position, it is possible to ensure basic flow, it is to avoid flow is too small and blood refluxes, and uses safety, with actuator with the use of more square
Just.
As a modification of the present invention, the vertex angle angle in described needlepoint side cross section is less than 30 °.
The lateral section drift angle of the present invention is usually 15 ° ~ 18 °, it is possible to ensures that spike body is pricked into skin smoothly, reduces twinge
Sense, can make liquid feed equidirectional with blood simultaneously.
As a modification of the present invention, current limliting projection is set inside described needle tubing, and current limliting projection is no less than 2.
The present invention realizes current limliting in needle tubing by arranging current limliting projection in needle tubing, it is to avoid needle point site pressure is excessive,
Flow rate of liquid is too fast, causes sense of discomfort.
As a modification of the present invention, bottom described current limiting plate, centre is connected with needle tubing.
Being connected the current limiting plate being possible not only to ensure thinner thickness in the middle of bottom the current limiting plate of the present invention with needle tubing will not be because of pin
Overpressure is excessive and causes deformation, can reduce the size of liquid outlet simultaneously.
As a modification of the present invention, described tap hole totally two groups, one group is less than 5.
The tap hole distribution of the present invention is more uniform, makes spike body uniform force, is unlikely to cause in infusion process
Tilt, affect infusion safety.
As a modification of the present invention, described Circularhole diameter is more than the diameter of tap hole.
The current limiting plate nose circle bore dia of the present invention, more than the diameter of tap hole, on the one hand can reduce the pressure of current limiting plate
Power, the simultaneously less purpose that can realize again limiting flow of tap hole diameter.
The invention has the beneficial effects as follows:
A kind of infusion needle limiting flow of the present invention, by arranging current limliting projection, arranging limit at needle point in needle tubing
Stream plate reduces the flow of liquid, reduces the liquid outlet quantity that spike body is overall, with the use of actuator, it is possible to effectively slow down liquid
Flow, arranges liquid outlet, circular hole and tap hole to avoid out liquid to cross the slow and problem of blood back simultaneously, more easily regulates, use
Effect is more preferable.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the side-looking structural representation of the present invention.
Fig. 3 is the sectional structure schematic diagram of the present invention.
Reference numerals list:
1. spike body, 2. needle tubing, 3. needle point, 4. current limiting plate, 5. circular hole, 6. liquid outlet, 7. tap hole, 8. current limliting projection.
Detailed description of the invention
Below in conjunction with the accompanying drawings and detailed description of the invention, it is further elucidated with the present invention, it should be understood that following detailed description of the invention is only
For the present invention being described rather than limiting the scope of the present invention.It should be noted that the word " front " used in describing below,
" afterwards ", "left", "right", "up" and "down" refer to the direction in accompanying drawing, word " interior " and " outward " refer respectively to towards or remote
Direction from particular elements geometric center.
As it can be seen, a kind of infusion needle limiting flow, including spike body 1, described spike body 1 includes needle tubing 2
With needle point 3, described needle tubing 2 one end connects needle point 3, and one end connects syringe outlet, and needle tubing 2 is hollow circular cylinder, described needle point 3
Lateral section is triangle, and needle point 3 front end arranges current limiting plate 4, and described current limiting plate 4 top is triangle, and bottom is half elliptic, top
Arranging circular hole 5 in the middle of portion, bottom arranges liquid outlet 6, and current limiting plate 4 left and right sides arranges tap hole 7, and described liquid outlet 6 is half ellipse
Circle.
As it can be seen, needle point 3 top of the needle tip of the present invention is triangle, it is possible to penetrate skin, pin more swimmingly
The current limiting plate 4 that point 3 front end is arranged, is set to obturator by spike body 1, and needle point 3 arranges circular hole 5, liquid outlet 6 and shunting simultaneously
Position is flowed out for liquid in hole 7, it is possible to ensure basic flow, it is to avoid flow is too small and blood refluxes, and uses safety, with actuator
With the use of convenient.
As it can be seen, the vertex angle angle of described needle point 3 lateral section is less than 30 °, lateral section drift angle be usually 15 ° ~
18 °, it is possible to ensure that spike body 1 is pricked into skin smoothly, reduce sensation of pricking, liquid feed can be made equidirectional with blood simultaneously.
As it can be seen, the internal current limliting projection 8 that arranges of described needle tubing 2, and current limliting projection 8 is no less than 2, by needle tubing 2
Current limliting projection 8 is inside set to realize current limliting in needle tubing 2, it is to avoid needle point 3 site pressure is excessive, and flow rate of liquid is too fast, causes discomfort
Sense.
As it can be seen, be connected with needle tubing 2 in the middle of bottom described current limiting plate 4, it is possible not only to ensure the current limiting plate 4 of thinner thickness
Will not because of in needle tubing 2 pressure excessive and cause deformation, the size of liquid outlet 6 can be reduced simultaneously.
As it can be seen, described tap hole 7 totally two groups, one group is less than 5, and tap hole 7 is distributed more uniform, makes syringe needle originally
Body 1 uniform force, is unlikely to cause inclination in infusion process, affects infusion safety.
As it can be seen, described circular hole 5 diameter is more than the diameter of tap hole 7, the pressure of current limiting plate 4 on the one hand can be reduced,
The less purpose that can realize again limiting flow of tap hole 7 diameter simultaneously.
Technological means disclosed in the present invention program is not limited only to the technological means disclosed in above-mentioned embodiment, also includes
The technical scheme being made up of above technical characteristic combination in any.
Claims (6)
1. the infusion needle limiting flow, it is characterised in that: include that spike body, described spike body include needle tubing and pin
Point, described needle tubing one end connects needle point, and one end connects syringe outlet, and needle tubing is hollow circular cylinder, and described needlepoint side cross section is
Triangle, needle point front end arranges current limiting plate, and described current limiting plate top is triangle, and bottom is half elliptic, and crown center is arranged
Circular hole, bottom arranges liquid outlet, and the current limiting plate left and right sides arranges tap hole, and described liquid outlet is semiellipse.
A kind of infusion needle limiting flow the most according to claim 1, it is characterised in that: the three of described needlepoint side cross section
Dihedral corner angle is less than 30 °.
A kind of infusion needle limiting flow the most according to claim 1, it is characterised in that: inside described needle tubing, limit is set
Stream projection, and current limliting projection is no less than 2.
A kind of infusion needle limiting flow the most according to claim 1, it is characterised in that: in the middle of bottom described current limiting plate
It is connected with needle tubing.
A kind of infusion needle limiting flow the most according to claim 1, it is characterised in that: described tap hole totally two groups,
One group is less than 5.
A kind of infusion needle limiting flow the most according to claim 1, it is characterised in that: described Circularhole diameter is more than dividing
The diameter of discharge orifice.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610752701.XA CN106075648A (en) | 2016-08-29 | 2016-08-29 | A kind of infusion needle limiting flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610752701.XA CN106075648A (en) | 2016-08-29 | 2016-08-29 | A kind of infusion needle limiting flow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106075648A true CN106075648A (en) | 2016-11-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610752701.XA Pending CN106075648A (en) | 2016-08-29 | 2016-08-29 | A kind of infusion needle limiting flow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106075648A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5515871A (en) * | 1990-09-28 | 1996-05-14 | Sulzer Brothers Ltd. | Hollow needle for medical use and a laser method for manufacturing |
| DE10316237A1 (en) * | 2003-04-09 | 2004-11-04 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Cannula for insertion in biological organ, clasps a hollow needle with a needle end which carries a covering device separating the interior of the needle from the environment |
| WO2005102426A1 (en) * | 2004-03-25 | 2005-11-03 | Boston Scientific Scimed, Inc. | Needles |
| CN202605450U (en) * | 2012-06-30 | 2012-12-19 | 赵锦军 | Fast anesthesia syringe needle |
| US20140025035A1 (en) * | 2012-07-17 | 2014-01-23 | Cook Medical Technologies Llc | Multi-lumen biologic-delivering device |
| WO2016071441A1 (en) * | 2014-11-07 | 2016-05-12 | Rena Gmbh | Method and device for producing cannulas |
-
2016
- 2016-08-29 CN CN201610752701.XA patent/CN106075648A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5515871A (en) * | 1990-09-28 | 1996-05-14 | Sulzer Brothers Ltd. | Hollow needle for medical use and a laser method for manufacturing |
| DE10316237A1 (en) * | 2003-04-09 | 2004-11-04 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Cannula for insertion in biological organ, clasps a hollow needle with a needle end which carries a covering device separating the interior of the needle from the environment |
| WO2005102426A1 (en) * | 2004-03-25 | 2005-11-03 | Boston Scientific Scimed, Inc. | Needles |
| CN202605450U (en) * | 2012-06-30 | 2012-12-19 | 赵锦军 | Fast anesthesia syringe needle |
| US20140025035A1 (en) * | 2012-07-17 | 2014-01-23 | Cook Medical Technologies Llc | Multi-lumen biologic-delivering device |
| WO2016071441A1 (en) * | 2014-11-07 | 2016-05-12 | Rena Gmbh | Method and device for producing cannulas |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161109 |
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| RJ01 | Rejection of invention patent application after publication |