CN209437790U - A kind of not damaged puncture needle of transfusion port - Google Patents
A kind of not damaged puncture needle of transfusion port Download PDFInfo
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- CN209437790U CN209437790U CN201821848974.5U CN201821848974U CN209437790U CN 209437790 U CN209437790 U CN 209437790U CN 201821848974 U CN201821848974 U CN 201821848974U CN 209437790 U CN209437790 U CN 209437790U
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- needle
- transfusion port
- damaged
- puncture needle
- grinding
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Abstract
The utility model discloses a kind of not damaged puncture needle of transfusion port, which is more particularly to needs in the case where implantable infusion port from a kind of puncture needle for hardly constituting any damage to the wall of transfusion port in puncture process for conveying medical fluid into transfusion port in vitro and using.The puncture needle includes needle tubing and needle point, the needle point is set as the oblique grinding of abrasive tip progress by one end of needle tubing and is formed, the first angle of chamfer α that the grinding inclined-plane and needle tubing central axis of needle point are constituted is 12 ° ± 2 °, needle point also passes through bending in forming process, bending distance L is 0.5~3mm, and radius bend R is 1~4mm.Plane where the end of needle point is formed by the outer diameter tube wall of plane and needle tubing after grinding for the first time is tangent, not damaged puncture needle can be made to keep vertical with elastic diaphragm when puncture, it keeps the stabilization of not damaged puncture needle and can preferably cover lumen, reduce the diameter and exfoliation of hole.
Description
Technical field
The utility model relates to a kind of puncture needles, more particularly to need in the case where implantable infusion port from vitro to transfusion port
A kind of interior puncture needle for hardly constituting any damage to the wall of transfusion port in puncture process for conveying medical fluid and using,
Belong to medical equipment technical field.
Background technique
Transfusion port is a kind of infusion device that implantation subcutaneously stays in the body for a long time, is suitable for long-term chemotherapy, long-term intravenous is sought
It supports, the patient of long-term infusion, it provides long-term vein blood vessel channel for patient, can carry out infusion drug, fluid infusion, nutrition branch
It the treatment such as holds, transfuse blood, while can be used for blood specimen collection.
The feature of transfusion port maximum is the venous access of a being chronically implanted property, generally can indwelling more than ten after adult's implantation
Year, it performs the operation and takes out after children's general treatment, the pain and difficulty of venipuncture repeatedly can be greatly reduced, relative to center
Vein Tube and PICC, which set pipe, more advantages.PICC, that is, Peripherally Inserted Central Catheter, because be it is exposed, make
With will affect infant activity in the process, ill-matched infant oneself may be dragged, and need to inject heparin maintenance weekly.And coin is big
Small " transfusion port " is embedded in subcutaneous position, does not influence activity in use, and bathing will not influence, infection rate
It is low, and it is primary only need to monthly to inject heparin maintenance, if the proper use of nursing is 30 years.Therefore, transfusion port can ensure
The infusion safety of high irritating chemotherapeutics promotes patient while helping patient to establish the venous access of a safety
Quality of life, reduce chemotherapeutic extravasation etc. risks.
To replace the not damaged puncture needle of transfusion port within transfusion port every 7 days during infusion.The not damaged puncture of transfusion port
Needle is specific to transfusion port and a kind of transfusion needle for designing, usually vertical with relative to plane where wing portion by wing portion
Needle body part composition.Usually needle body part is vertically penetrated in transfusion port when in use, then by wing portion and sufferer personnel skin
Skin is to patch, with the not damaged puncture needle of fixation.
In actual use, transfusion port is configured to be fixed in sufferer personnel's body, needs transfusion room will be not damaged
Puncture needle is punctured from resistance bacterium flexible glue and is used, and extracts not damaged puncture needle from resistance bacterium flexible glue when not needing infusion, compact
The gap moment of the not damaged puncture needle of extraction can be crowded with by flexible glue structure.
Resistance bacterium flexible glue is able to satisfy not damaged puncture pin puncture 1000 times, not damaged since resistance bacterium flexible glue is soft tissue after all
The multiple puncture of puncture needle will form multiple cutting, and repeatedly cutting will affect the compactness of resistance bacterium flexible glue, severest consequences
It is that will form gap in resistance bacterium flexible glue, resistance bacterium effect, the elastomer for the resistance bacterium flexible glue being cut can not be formed to transfusion port
Particle, which is possible to be brought by medical fluid in the medical fluid runner of transfusion port, causes its blocking, more fatal be the elastomer particles also
It is possible that the internal of sufferer personnel can be brought by medical fluid, imponderable malpractice is formed.
Utility model content
The purpose of this utility model is exactly to propose that a kind of transfusion port is used to solve the above-mentioned problems in the prior art
Not damaged puncture needle.
The purpose of this utility model will be realized through the following technical scheme: a kind of not damaged puncture needle of transfusion port,
Including needle tubing and needle point, the needle point is set as the oblique grinding of abrasive tip progress by one end of needle tubing and is formed, the needle point
Grinding the first angle of chamfer α that inclined-plane and needle tubing central axis are constituted is 12 ° ± 2 °, and the needle point is in forming process also by folding
Curved, bending distance L is 0.5~3mm, and radius bend R is 1~4mm.
Preferably, the end of the needle point forms two secondary abradant surfaces by symmetrical secondary grinding.
Preferably, joint second angle of chamfer γ that two secondary abradant surfaces are constituted is 25 °~85 °.
Preferably, the end of the needle point is formed by where the outer diameter tube wall of plane and needle tubing after grinding for the first time
Plane is tangent.
Preferably, the needle tubing and needle point are made of medical stainless steel.
Preferably, infusion channel is provided in the needle tubing, one end of the infusion channel is connected to perfusion tube.
The advantages of technical solutions of the utility model, is mainly reflected in:
Plane where the end of needle point B is formed by the outer diameter tube wall of plane and needle tubing after grinding for the first time is tangent,
Not damaged puncture needle can be made to keep vertical with elastic diaphragm when puncture, keep the stabilization of not damaged puncture needle and energy more preferable the
Lumen is covered, the diameter and exfoliation of hole are reduced.Manufacture craft is simplified, production cost is reduced, the presence at the angle α makes not damaged
Puncture needle Direct perforantes in puncture process avoid scratching transfusion port port body, break needle point, cause medicine to the bottom of transfusion port body
Liquid residual, damages patient.
Under the premise of successfully not damaged puncture needle can be connected with transfusion port, not damaged puncture needle is effectively prevented
When puncturing to the cutting of the resistance bacterium flexible glue of transfusion port, it is ensured that the normal use of instrument fundamentally avoids unnecessary
The generation of malpractice.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the not damaged puncture needle of transfusion port of the utility model.
Fig. 2 is a kind of structural schematic diagram of the not damaged puncture needle of transfusion port of the utility model.
Specific embodiment
The purpose of this utility model, advantage and feature will carry out figure by the non-limitative illustration of preferred embodiment below
Show and explains.These embodiments are only the prominent examples using technical solutions of the utility model, all to take equivalent replacement or wait
Effect transformation and formed technical solution, all fall within the requires of the utility model protection within the scope of.
The utility model discloses a kind of not damaged puncture needle of transfusion port, which is more particularly to needs to be implanted into defeated
In the case where liquid port from vitro into transfusion port convey medical fluid and use it is a kind of in puncture process to the wall of transfusion port
Hardly constitute the puncture needle of any damage.
The not damaged puncture needle of the transfusion port, including needle tubing A and needle point B, the needle point are set as grinding by one end of needle tubing
Mill end carries out oblique grinding and is formed.The outer diameter D of needle tubing A2Needle internal-and external diameter for 0.7~1.2mm, different size is different, at this
In technical solution, the size of the internal-and external diameter of needle tubing A is not done specifically defined.
The first angle of chamfer α that the grinding inclined-plane and needle tubing central axis of the needle point are constituted is 12 ° ± 2 °, and the needle point is in shape
At bending is also passed through in the process, bending distance L is 0.5~3mm, and bending distance L be the starting point of grinding substrate to tip end
It goes to extend.Radius bend R is 1~4mm.The end of the needle point forms two secondary abradant surfaces by symmetrical secondary grinding,
Joint second angle of chamfer γ that two secondary abradant surfaces are constituted is 25 °~85 °, in the technical scheme, combines second angle of chamfer
γ is preferably 45 °.
The needle point is set as the oblique grinding of abrasive tip progress by one end of needle tubing and is formed, and the starting point for grinding substrate is
C.Plane where the end of the needle point B is formed by the outer diameter tube wall of plane and needle tubing after grinding for the first time is tangent, should
Setting, which enables, makes not damaged puncture needle keep vertical with resistance bacterium flexible glue when puncture, the needle point of not damaged puncture needle is directed toward for wearing
The center of the resistance bacterium flexible glue of thorn, keeps the stabilization of not damaged puncture needle and can preferably cover lumen, reduce the diameter of hole
And exfoliation.
The needle point is made of medical stainless steel, and infusion channel, one end of the infusion channel are provided in the needle tubing
It is connected to perfusion tube.When original state, the end of not damaged puncture needle punctures through resistance bacterium flexible glue, and after the hollow portion of casing
It is stretched out from the distal end of casing；When the second state, not damaged puncture needle is extracted out from the hollow portion of casing, infusion channel and casing
Hollow portion conducting.Under the premise of successfully not damaged puncture needle can be connected with transfusion port, not damaged wear is effectively prevented
Cutting of the pricker when puncturing to the resistance bacterium flexible glue of transfusion port, it is ensured that the normal use of instrument, fundamentally avoiding need not
The generation for the malpractice wanted.
Still there are many embodiment, all technologies formed using equivalents or equivalent transformation for the utility model
Scheme is all fallen within the protection scope of the utility model.
Claims (6)
1. a kind of not damaged puncture needle of transfusion port, including needle tubing (A) and needle point (B), the needle point are set by one end of needle tubing
For abrasive tip carries out oblique grinding and is formed, it is characterised in that: the of grinding inclined-plane and needle tubing the central axis composition of the needle point
One angle of chamfer α is 12 ° ± 2 °, and the needle point also passes through bending in forming process, and bending distance L is 0.5~3mm, bending half
Diameter R is 1~4mm.
2. a kind of not damaged puncture needle of transfusion port according to claim 1, it is characterised in that: the end of the needle point passes through
It crosses symmetrical secondary grinding and forms two secondary abradant surfaces.
3. a kind of not damaged puncture needle of transfusion port according to claim 2, it is characterised in that: two secondary abradant surface structures
At joint second angle of chamfer γ be 25 °~85 °.
4. a kind of not damaged puncture needle of transfusion port according to claim 1, it is characterised in that: the end of the needle point (B)
Plane where end is formed by the outer diameter tube wall of plane and needle tubing after grinding for the first time is tangent.
5. a kind of not damaged puncture needle of transfusion port according to claim 1, it is characterised in that: the needle tubing and needle point by
Medical stainless steel is made.
6. a kind of not damaged puncture needle of transfusion port according to claim 1, it is characterised in that: be provided in the needle tubing
One end of infusion channel, the infusion channel is connected to perfusion tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821848974.5U CN209437790U (en) | 2018-11-09 | 2018-11-09 | A kind of not damaged puncture needle of transfusion port |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821848974.5U CN209437790U (en) | 2018-11-09 | 2018-11-09 | A kind of not damaged puncture needle of transfusion port |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209437790U true CN209437790U (en) | 2019-09-27 |
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ID=68011388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821848974.5U Active CN209437790U (en) | 2018-11-09 | 2018-11-09 | A kind of not damaged puncture needle of transfusion port |
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| CN (1) | CN209437790U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113181474A (en) * | 2021-05-07 | 2021-07-30 | 中国人民解放军陆军军医大学第一附属医院 | Safe type nondestructive puncture needle for infusion port |
-
2018
- 2018-11-09 CN CN201821848974.5U patent/CN209437790U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113181474A (en) * | 2021-05-07 | 2021-07-30 | 中国人民解放军陆军军医大学第一附属医院 | Safe type nondestructive puncture needle for infusion port |
| CN113181474B (en) * | 2021-05-07 | 2022-08-02 | 中国人民解放军陆军军医大学第一附属医院 | Safe type nondestructive puncture needle for infusion port |
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