WO1999049914A1 - Cylindre de seringue en plastique et procede servant a l'ameliorer - Google Patents
Cylindre de seringue en plastique et procede servant a l'ameliorer Download PDFInfo
- Publication number
- WO1999049914A1 WO1999049914A1 PCT/JP1999/001542 JP9901542W WO9949914A1 WO 1999049914 A1 WO1999049914 A1 WO 1999049914A1 JP 9901542 W JP9901542 W JP 9901542W WO 9949914 A1 WO9949914 A1 WO 9949914A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- syringe barrel
- plastic syringe
- luer lock
- peripheral surface
- outer cylinder
- Prior art date
Links
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
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
- A61M5/34—Constructions for connecting the needle, e.g. to syringe nozzle or needle hub
- A61M5/347—Constructions for connecting the needle, e.g. to syringe nozzle or needle hub rotatable, e.g. bayonet or screw
-
- 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
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
- A61M5/34—Constructions for connecting the needle, e.g. to syringe nozzle or needle hub
-
- 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
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/3129—Syringe barrels
- A61M5/3134—Syringe barrels characterised by constructional features of the distal end, i.e. end closest to the tip of the needle cannula
Definitions
- the present invention relates to a plastic syringe barrel and a method for improving the same.
- prefilled plastic syringes have been used in which a contrast agent is injected into a relatively large plastic syringe. Since the contrast medium has relatively high viscosity, the resistance to injecting the contrast medium into the body via blood vessels, spinal cord, etc. is large, and pressure injection is generally performed by a machine.
- an extension tube or the like is connected to the nozzle of the plastic syringe barrel, and the contrast medium is injected into the body through the extension tube and the blood vessel or spinal cord.
- a luer lock is formed to strengthen the connection with the extension tube and the like.
- this luer lock has a configuration in which a cylindrical space is formed between the inner peripheral surface of the outer cylinder and the outer peripheral surface of the inner cylinder, and the luer lock formed in the cylindrical space as described above.
- the extension tube is connected to the nozzle of the plastic syringe barrel by screwing the tip of the extension tube into the section.
- connection between the two may be loosened due to the return of the screwed extension tube or the like. And If the injection is performed with the connection loose, the high pressure applied during the injection of the contrast agent may cause leakage of the contrast agent from the connection, which is a problem.
- An object of the present invention is to provide a means by which an extension tube or the like can be firmly and reliably connected to a nozzle portion of a plastic syringe barrel, and the connection is not loosened. Disclosure of the invention
- an outer cylinder and an inner cylinder are formed in the nozzle portion of the plastic syringe barrel, and a luer lock portion formed of a cylindrical space is formed between the inner peripheral surface of the outer cylinder and the outer peripheral surface of the inner cylinder.
- a plastic syringe barrel characterized in that the entire surface or a part of the inner surface of the luer lock is subjected to a surface roughening treatment.
- the inner peripheral surface of the outer cylinder may be subjected to a surface roughening treatment.
- a helical continuous screw thread is formed on the inner peripheral surface of the outer cylinder, and the surface of the screw thread and the nook or screw valley is subjected to a roughening treatment. May be.
- the material of the plastic syringe barrel is, for example, a cyclic polyolefin resin.
- the surface roughening processing is performed by, for example, blast processing.
- Claim 6 is a plastic syringe barrel in which an outer cylinder and an inner cylinder are formed in the nozzle portion, and a luer lock portion formed of a cylindrical space is formed between the inner peripheral surface of the outer cylinder and the outer peripheral surface of the inner cylinder. Improvement method, characterized in that the whole or part of the inner surface of the luer lock portion is formed on a surface subjected to a surface roughening treatment, thereby increasing the bonding force of the luer lock portion. ing.
- An extension tube with a spiral groove is provided in the luer lock. Are screwed together. What is connected to the luer lock is not limited to the extension tube, but may be a syringe needle, a three-way cock, or the like, and the material is not particularly limited.
- "roughening treatment is performed” means that the luer lock portion is subjected to blast treatment or the like on the entire inner surface or a part of the luer lock portion. It is not limited to the case where the inner surface is directly roughened.
- the surface of the mold facing the inner surface of the luer lock is roughened, and the inner surface of the luer lock is molded during resin molding. This includes the case where the inner surface of the luer lock is indirectly roughened by transferring the rough surface shape of the die surface to the surface.
- Blasting is a process in which hard fine particles, such as gold sand, are sprayed at high pressure onto the inner surface of the luer lock or the surface of the mold to form fine irregularities and roughen the surface.
- the surface of the mold facing the inner surface of the luer lock portion is roughened by blasting or the like.
- the inner surface of the luer lock is transferred to the inner surface of the luer lock during resin molding, or the inner surface of the luer lock is directly blasted. All or part of the surface is finely scratched and roughened.
- the method of roughening the inner surface of the luer lock and the die surface in this way is not limited to the blasting treatment, and fine scratches are formed on the die surface and the inner surface of the luer lock using a file or the like. , Roughening treatment may be performed.
- the material of the plastic syringe barrel is, for example, a cyclic polyolefin resin, and may be a polycarbonate resin, a polymethacrylate resin, a polypropylene resin, or the like. Cyclic polyolefin resin In this case, it is particularly effective in that the extension tube can be connected firmly and securely.
- Fig. 1 is an illustration of the nozzle of a plastic syringe barrel.
- Fig. 2 is an enlarged view showing the structure of the luer lock.
- the lower half of Fig. 2 (the part below the center line shown by the dashed line) is a cross section.
- a nozzle section 2 is provided at the tip of a plastic syringe barrel 1.
- the material of the plastic syringe barrel 1 is, for example, a cyclic polyolefin resin.
- An outer cylinder 3 and an inner cylinder 4 are formed in the nozzle section 2, and the inside of the plastic syringe barrel 1 is filled with a liquid such as a contrast agent.
- a liquid such as a contrast agent can be injected into the body from inside the plastic syringe barrel 1 through a hole 5 formed so as to penetrate substantially the center of the inner cylinder 4.
- a luer lock 6 composed of a cylindrical space is formed between the inner peripheral surface of the outer cylinder 3 and the outer peripheral surface of the inner cylinder 4. Further, spirally continuous threads 7 are formed on the inner peripheral surface of the outer cylinder 3, and thread valleys 8 are formed in the gaps between the threads 7.
- the inner surface of the luer lock 6 is roughened.
- the surface roughening process is performed, for example, in a mold used to mold the plastic syringe barrel 1 into a resin mold. The surface of the mold is blasted and the rough surface of the mold surface is transferred to the inner surface of the luer lock 6 during resin molding.
- the surface roughening process which is performed by blasting the surface, may be performed on the entire inner surface of the luer lock portion 6, or may be performed on only a part of the inner surface of the luer lock portion 6. For example, on the inner surface of the luer lock 6, only the inner peripheral surface of the outer cylinder 3 may be subjected to a surface roughening treatment.
- the surface of both the helical thread 7 and the thread valley 8 formed on the inner peripheral surface of the outer cylinder 3 may be roughened. Further, only one of the spiral thread 7 and the thread root 8 formed on the inner peripheral surface of the outer cylinder 3 may be subjected to a surface roughening treatment.
- the nozzle part 2 at the tip of the plastic syringe barrel 1 configured in this way, for example, by inserting the tip of an extension tube (not shown) into the luer lock part 6 consisting of a cylindrical space and screwing it in: not shown
- the helical groove formed on the peripheral surface of the extension tube is engaged with the helical thread 7 formed on the inner peripheral surface of the outer cylinder 3.
- the tube and the like can be firmly and securely connected.
- the plastic syringe barrel and the extension tube can be firmly and reliably connected to each other, and the friction between the two is increased by the roughening treatment, so that the connection is not loosened. Therefore, when the contrast medium is injected into the body from inside the plastic syringe barrel via blood vessels or spinal cord, there is no fear that the contrast medium leaks out of the joint.
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)
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP99910714A EP1080742B1 (en) | 1998-03-27 | 1999-03-26 | Plastic syringe barrel and method of improving it |
DE69928926T DE69928926T2 (de) | 1998-03-27 | 1999-03-26 | Spritzenzylinder aus kunststoff sowie verfahren zu seiner verbesserung |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10/80688 | 1998-03-27 | ||
JP8068898 | 1998-03-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1999049914A1 true WO1999049914A1 (fr) | 1999-10-07 |
Family
ID=13725286
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1999/001542 WO1999049914A1 (fr) | 1998-03-27 | 1999-03-26 | Cylindre de seringue en plastique et procede servant a l'ameliorer |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1080742B1 (ja) |
DE (1) | DE69928926T2 (ja) |
WO (1) | WO1999049914A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002272841A (ja) * | 2001-03-14 | 2002-09-24 | Taiyo Yakuhin Kogyo Kk | プレフィルドシリンジ製剤 |
JP2009183337A (ja) * | 2008-02-04 | 2009-08-20 | Toray Ind Inc | 血液ポート、これを備えた血液処理装置および血液ポートの製造方法 |
JP2013132349A (ja) * | 2011-12-26 | 2013-07-08 | Daikyo Seiko Ltd | 二薬混合用シリンジキット |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2809316B1 (fr) * | 2000-05-26 | 2002-07-26 | Becton Dickinson France | Dispositif de connexion etanche a usage medical, du type "luer-lock", et seringue incorporant un tel dispositif |
WO2012049532A1 (en) | 2010-12-16 | 2012-04-19 | Becton Dickinson France | Adaptor and drug delivery device |
EP2862587A1 (en) | 2013-10-15 | 2015-04-22 | Becton Dickinson France | Tip cap assembly for closing an injection system |
DE102017200007A1 (de) | 2017-01-02 | 2018-07-05 | Schott Ag | Spritze mit unterschiedlichen Materialien |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS481796U (ja) * | 1971-05-21 | 1973-01-10 | ||
JPH0910281A (ja) * | 1995-06-28 | 1997-01-14 | Maeda Sangyo Kk | 薬剤容器の口部構造 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5797889A (en) * | 1996-06-19 | 1998-08-25 | Becton Dickinson And Company | Medical device having a connector portion with an improved surface finish |
-
1999
- 1999-03-26 EP EP99910714A patent/EP1080742B1/en not_active Expired - Lifetime
- 1999-03-26 WO PCT/JP1999/001542 patent/WO1999049914A1/ja active IP Right Grant
- 1999-03-26 DE DE69928926T patent/DE69928926T2/de not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS481796U (ja) * | 1971-05-21 | 1973-01-10 | ||
JPH0910281A (ja) * | 1995-06-28 | 1997-01-14 | Maeda Sangyo Kk | 薬剤容器の口部構造 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002272841A (ja) * | 2001-03-14 | 2002-09-24 | Taiyo Yakuhin Kogyo Kk | プレフィルドシリンジ製剤 |
JP2009183337A (ja) * | 2008-02-04 | 2009-08-20 | Toray Ind Inc | 血液ポート、これを備えた血液処理装置および血液ポートの製造方法 |
JP2013132349A (ja) * | 2011-12-26 | 2013-07-08 | Daikyo Seiko Ltd | 二薬混合用シリンジキット |
Also Published As
Publication number | Publication date |
---|---|
EP1080742A4 (en) | 2001-10-24 |
EP1080742A1 (en) | 2001-03-07 |
DE69928926D1 (de) | 2006-01-19 |
DE69928926T2 (de) | 2006-08-24 |
EP1080742B1 (en) | 2005-12-14 |
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