CN114313343A - Filling needle - Google Patents
Filling needle Download PDFInfo
- Publication number
- CN114313343A CN114313343A CN202210038392.5A CN202210038392A CN114313343A CN 114313343 A CN114313343 A CN 114313343A CN 202210038392 A CN202210038392 A CN 202210038392A CN 114313343 A CN114313343 A CN 114313343A
- Authority
- CN
- China
- Prior art keywords
- needle
- peek
- connecting joint
- filling
- seamless tube
- 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
Links
- 239000004696 Poly ether ether ketone Substances 0.000 claims abstract description 30
- 229920002530 polyetherether ketone Polymers 0.000 claims abstract description 30
- JUPQTSLXMOCDHR-UHFFFAOYSA-N benzene-1,4-diol;bis(4-fluorophenyl)methanone Chemical compound OC1=CC=C(O)C=C1.C1=CC(F)=CC=C1C(=O)C1=CC=C(F)C=C1 JUPQTSLXMOCDHR-UHFFFAOYSA-N 0.000 claims abstract description 29
- 238000003466 welding Methods 0.000 claims abstract description 7
- 229910001220 stainless steel Inorganic materials 0.000 claims description 12
- 239000010935 stainless steel Substances 0.000 claims description 12
- 230000001954 sterilising effect Effects 0.000 abstract description 24
- 238000004659 sterilization and disinfection Methods 0.000 abstract description 24
- 239000000463 material Substances 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 5
- 239000003814 drug Substances 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 229940079593 drug Drugs 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention relates to a filling needle, comprising: the needle body comprises a seamless tube and a connecting joint, wherein one end of the seamless tube is inserted into the connecting joint and is fixed through laser welding; the PEEK needle file is sleeved outside the needle body and detachably connected with the connecting joint. The technical scheme of the invention is that the needle body comprises a seamless tube and a connecting joint, wherein one end of the seamless tube is inserted into the connecting joint and is fixed by laser welding; the PEEK needle file cover is located this external of needle, and with attach fitting can dismantle the connection. The PEEK needle file matter is light and thin-walled for the holistic simple structure of filling needle is light, and the needle file of PEEK material also is applicable to the irradiation sterilization mode, satisfies different sterilization requirements, and sterilization effect is more excellent.
Description
Technical Field
The invention relates to the field of filling needles, in particular to a filling needle.
Background
With the use of filling needles in liquid medicines, especially the requirements on liquid medicine filling and sterilization are continuously improved, and very high requirements are put forward on the sterilization thoroughness of the filling needles. However, the design and sterilization effects of the conventional filling needle treatment in the market are not ideal due to the limitations of the prior art and processes.
The existing filling needles are all made of stainless steel, the stainless steel filling needles are heavy in weight and bulky in structure, and the stainless steel filling needles are only suitable for dry-heat and wet-heat sterilization modes but not for irradiation sterilization modes, so that the sterilization is insufficient.
Disclosure of Invention
The invention aims to provide a filling needle which has the characteristics of simple and compact structure, full sterilization and the like and has better applicability.
In order to achieve the purpose, the invention adopts the following technical scheme:
a filling needle, comprising: the needle body comprises a seamless tube and a connecting joint, wherein one end of the seamless tube is inserted into the connecting joint and is fixed through laser welding; the PEEK needle file is sleeved outside the needle body and detachably connected with the connecting joint.
Preferably, the PEEK needle file is inside hollow, and the medial surface is equipped with the internal thread, the attach fitting lateral surface is equipped with the external screw thread, the PEEK needle file with attach fitting threaded connection.
Preferably, the PEEK needle stand includes first pole portion and the second pole portion of connecting the setting, the screw thread sets up on the medial surface of second pole portion.
Preferably, the diameter of the first shaft portion is smaller than the diameter of the second shaft portion.
Preferably, the seamless tube is a stainless steel tube.
Preferably, the connection joint is a stainless steel joint.
Compared with the prior art, the invention has the beneficial effects that:
according to the filling needle provided by the technical scheme, the needle body comprises a seamless tube and a connecting joint, one end of the seamless tube is inserted into the connecting joint and is fixed through laser welding; the PEEK needle file cover is located this external of needle, and with attach fitting can dismantle the connection. The PEEK needle file matter is light and thin-walled for the holistic simple structure of filling needle is light, and the needle file of PEEK material also is applicable to the irradiation sterilization mode, satisfies different sterilization requirements, and sterilization effect is more excellent.
Drawings
Fig. 1 is a schematic view of a filling needle according to an embodiment of the present invention.
Fig. 2 is a schematic view of a needle body provided in an embodiment of the present invention.
1. A needle body; 11. a seamless pipe; 12. connecting a joint; 2. a PEEK needle seat; 21. a first rod portion; 22. a second rod portion.
Detailed Description
The present invention will now be described in more detail with reference to the accompanying drawings, in which the description of the invention is given by way of illustration and not of limitation. The various embodiments may be combined with each other to form other embodiments not shown in the following description.
Referring to fig. 1-2, in an embodiment of the present invention, there is provided a filling needle, including: a needle body 1 and a PEEK needle stand 2.
In a preferred embodiment, the needle body 1 comprises a seamless tube 11 and a connecting joint 12, both the seamless tube 11 and the connecting joint 12 are hollow inside, and the connecting joint 12 has a diameter larger than that of the seamless tube 11. One end of the seamless pipe 11 is inserted into the connecting joint 12, and the seamless pipe 11 and the connecting joint 12 are fixedly connected by laser welding. The connector 12 may be connected to an external filling device, and the liquid medicine may flow through the needle body 1 and to the corresponding container.
More preferably, the seamless tube 11 and the connection joint 12 are both made of stainless steel.
In a preferred embodiment, the PEEK needle holder 2 is hollow inside and has a diameter greater than the diameter of the seamless tube 11 and the connection joint 12. The PEEK needle holder 2 includes a first stem portion 21 and a second stem portion 22. One end of the first rod portion 21 and one end of the second rod portion 22 are fixedly connected, preferably integrally formed. The diameter of the first shaft portion 21 is smaller than the diameter of the second shaft portion 22. The PEEK needle seat 2 is sleeved outside the needle body 1 and detachably connected with the connecting joint 12.
Specifically, the inner side surface of the second rod part 22 is provided with an internal thread, the outer side surface of the connecting joint 12 is provided with an external thread, the second rod part 22 is in threaded connection with the connecting joint 12, the connecting mode is simple and convenient, and procedures such as welding, polishing and grinding can be omitted.
Of course, in other embodiments, the needle body 1 and the PEEK needle holder may be detachably connected by other means, such as clamping, bonding, etc.
More preferably, the PEEK needle holder 2 is made of PEEK material. The PEEK material is polyether-ether-ketone, has the heat resistance and chemical stability of thermosetting plastics and the molding processability of thermoplastic plastics, is simple and convenient to process, and does not leave liquid medicine when being used for filling different liquid medicines.
Most importantly, the PEEK needle holder 2 made of PEEK material meets the requirement of radiation sterilization, so the filling needle can be sterilized by radiation sterilization to achieve the purpose of sufficient sterilization.
The existing filling needles are made of stainless steel, and because the stainless steel has larger mass relative to PEEK materials and the thickness of the made needle seat is larger, the stainless steel filling needles are only suitable for dry-heat and wet-heat sterilization modes, and the sterilization effect is poor if the irradiation sterilization mode is adopted. The filling needle provided by the invention comprises a needle seat made of PEEK material, and the PEEK needle seat 2 can avoid the defects of stainless steel material, so that the whole filling needle is simple and light in structure, can adopt an irradiation sterilization mode, a dry-heat sterilization mode and a wet-heat sterilization mode, can meet different sterilization requirements, and has a better sterilization effect.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.
Claims (6)
1. A filling needle, comprising:
the needle body (1) comprises a seamless tube (11) and a connecting joint (12), wherein one end of the seamless tube (11) is inserted into the connecting joint (12) and is fixed through laser welding;
the PEEK needle seat (2) is sleeved outside the needle body (1) and detachably connected with the connecting joint (12).
2. The filling needle according to claim 1, characterized in that the PEEK needle holder (2) is hollow inside and provided with internal threads on the inner side, the connection joint (12) is provided with external threads on the outer side, and the PEEK needle holder (2) is in threaded connection with the connection joint (12).
3. A filling needle according to claim 2, wherein the PEEK needle holder (2) comprises a first (21) and a second (22) stem arranged in connection, the thread being arranged on the inner side of the second stem (22).
4. A filling needle according to claim 3, wherein the diameter of the first shank (21) is smaller than the diameter of the second shank (22).
5. A filling needle according to claim 1, wherein the seamless tube (11) is a stainless steel tube.
6. The filling needle according to claim 1, wherein the connecting fitting (12) is a stainless steel fitting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210038392.5A CN114313343A (en) | 2022-01-13 | 2022-01-13 | Filling needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210038392.5A CN114313343A (en) | 2022-01-13 | 2022-01-13 | Filling needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114313343A true CN114313343A (en) | 2022-04-12 |
Family
ID=81026213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210038392.5A Pending CN114313343A (en) | 2022-01-13 | 2022-01-13 | Filling needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114313343A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB142789A (en) * | 1919-05-06 | 1921-03-03 | Frank Lafayette Paltt | Improvements in hypodermic-syringe needle and base |
| DE19928902C1 (en) * | 1999-06-24 | 2001-02-01 | Holger Schrader | Nozzle unit primarily for filling phials with medicinal liquids comprises guide sleeve which is secured to top component of unit by cap nut, and holds or guides spring-loaded centering sleeve for filler needle |
| DE102011088798A1 (en) * | 2011-07-21 | 2013-01-24 | Mtp Medical Technical Promotion Gmbh | Cannula device for medical application, has passage channel whose end is formed in receiving portion in axial direction, and through-holes formed in wall of receiving portion defining passage channel for formation of filter section |
| US20140039405A1 (en) * | 2012-07-27 | 2014-02-06 | Juvaplus Sa | Injection device for aesthetic medicine |
| US20190217020A1 (en) * | 2016-09-30 | 2019-07-18 | Terumo Kabushiki Kaisha | Cap, syringe assembly, and prefilled syringe |
-
2022
- 2022-01-13 CN CN202210038392.5A patent/CN114313343A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB142789A (en) * | 1919-05-06 | 1921-03-03 | Frank Lafayette Paltt | Improvements in hypodermic-syringe needle and base |
| DE19928902C1 (en) * | 1999-06-24 | 2001-02-01 | Holger Schrader | Nozzle unit primarily for filling phials with medicinal liquids comprises guide sleeve which is secured to top component of unit by cap nut, and holds or guides spring-loaded centering sleeve for filler needle |
| DE102011088798A1 (en) * | 2011-07-21 | 2013-01-24 | Mtp Medical Technical Promotion Gmbh | Cannula device for medical application, has passage channel whose end is formed in receiving portion in axial direction, and through-holes formed in wall of receiving portion defining passage channel for formation of filter section |
| US20140039405A1 (en) * | 2012-07-27 | 2014-02-06 | Juvaplus Sa | Injection device for aesthetic medicine |
| US20190217020A1 (en) * | 2016-09-30 | 2019-07-18 | Terumo Kabushiki Kaisha | Cap, syringe assembly, and prefilled syringe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |