WO2011024188A2 - Medical non reusable syringes - Google Patents
Medical non reusable syringes Download PDFInfo
- Publication number
- WO2011024188A2 WO2011024188A2 PCT/IN2010/000472 IN2010000472W WO2011024188A2 WO 2011024188 A2 WO2011024188 A2 WO 2011024188A2 IN 2010000472 W IN2010000472 W IN 2010000472W WO 2011024188 A2 WO2011024188 A2 WO 2011024188A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- syringe
- piece
- projections
- non reusable
- outer piece
- 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
- A61M5/50—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 having means for preventing re-use, or for indicating if defective, used, tampered with or unsterile
- A61M5/5013—Means for blocking the piston or the fluid passageway to prevent illegal refilling of a syringe
- A61M5/502—Means for blocking the piston or the fluid passageway to prevent illegal refilling of a syringe for blocking the piston
-
- 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
- A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
- A61M5/3278—Apparatus for destroying used needles or syringes
- A61M2005/3279—Breaking syringe nozzles or needle hubs
-
- 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
- A61M5/50—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 having means for preventing re-use, or for indicating if defective, used, tampered with or unsterile
- A61M2005/5006—Having means for destroying the syringe barrel, e.g. by cutting or piercing
Definitions
- the non reusable syringe is a new hot topic in medical field as these are expected to reduce transmission of many fatal diseases. But integrating the quality of non reusability to the syringes is continuing as a challenge. Most designs patented are complex in structure and are costly .Few of them needs special training to operate. The simpler ones are easily damageable and may fail during the operation.
- the current invention is an attempt to reduce the complexity and to prolong the functional capability to a reasonable length of time for proper operation.
- Present invention is a medical non reusable syringe that can be used for multiple uses on a single patient in single sitting and destroyed after attending that patient by a simple inherent mechanism.
- Non reusable syringes are being promoted by most of the international and local government agencies as an effective mode of preventing disease transmission. And this mainly operates by destroying the piston or plunger of the syringe, which get damaged after single use.
- the non reusable syringes can be auto damageable syringes or it can be damaged voluntarily by a simple move.
- the separate syringe destroyers are special instruments that cut syringes through its tip, rendering the syringe non reusable. But this is a separate machine and need separate time and action for destruction of used disposable syringes. In many busy hospitals this job is done by separate staff and this increases the need for work force as well as proper monitoring
- the syringe described fulfills the above qualities.
- the invention is involved in creating an easily damageable area on the barrel of the syringe, which holds the piston or plunger inside it.
- the barrel is the most critical portion of manufacturing and the act to render the syringe non reusable is primarily targeted on it.
- the concept is to create a thin area along the circumference of the barrel on its outer surface near its middle or near its ends with longitudinal ⁇ and circumferential buttressing close to this groove and is the hospital supply model recommended.
- Figure 1 represents a vertical elevation of a syringe with a circular groove marked as G along the outer surface of the barrel and is generally located towards the needle attaching end of the outer piece of the syringe.
- OPT represent the outer part and IPT represent the inner part of the syringe.
- Figure II is the image representing few examples of various types of buttressing possible; marked on the syringe as shaded area. They are placed to enhance the breakage of the thin area between them.
- Figure III is showing three different patterns of inner projections and their cross sectional images.
- the figure of syringe showing inner projection "IP” and corrugated connection to the outer surface "CC” with the groove “GIP” on the inner piece to trap the inner projection of outer piece is shown in figure “III a”.
- the inner projection without corrugated connection is shown in figure “III b” and a thin elastic connection instead of corrugated connection in figure “III c”.
- the corresponding cross sections at the level of inner projections and inner piece with its groove "GIP" to be locked with the inner projections is shown to the right.
- the invention introduces two new properties to the disposable syringes to prevent their re usage.
- the first property is a voluntary non reusable method where the medical personnel damage the syringe by a simple voluntary motion after its usage.
- the second property is locking the syringe by the end of using the syringe, and any attempt to reuse the syringe will involuntarily damage the syringe to make it auto nonreusable.
- figure I and figure II represent incorporation of the property of voluntary nonreusability to the syringe.
- This part carries a focal rarified or thinned area on its outer aspect and is marked as "G". It is along this line the syringe breaks away on applying pressure.
- the figure III represents the property of involuntary non reusability to the syringe.
- FIG. III a shows the inner projection of any size that is projected from the inner aspect of the outer part of the syringe and is represented by the letter "IP".
- IP inner aspect of the outer part of the syringe
- the corresponding defect covered with the corrugated membrane on the same portion of the outer part of the syringe allows free accommodation of the inner projection with minimal or no regurgitation of fluid into the corrugated part or to the exterior.
- the figure “III b” represents another possible model where the inner projections "IP” is simply projecting from the inner aspect of the syringe and will get locked to the groove "GIP” on the inner part of the syringe .
- the figure “III c” represents another model where the corrugated membrane "CC” is replaced by a thin elastic membrane. This thin elastic membrane functions for the corrugated membrane in a similar manner.
- the above two properties can be incorporated to a syringe either alone or in a combined manner to render it non reusable depending on the demand at the end user.
- the mechanism adopted in syringes can be extended to other disposable equipments which have hazardous consequences on re usage.
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012521157A JP2012533393A (en) | 2009-07-23 | 2010-07-14 | Non-reusable medical syringe |
EP10811375.4A EP2456492A4 (en) | 2009-07-23 | 2010-07-14 | Medical non reusable syringes |
MX2012000866A MX2012000866A (en) | 2009-07-23 | 2010-07-14 | Medical non reusable syringes. |
BR112012001303A BR112012001303A2 (en) | 2009-07-23 | 2010-07-14 | non-reusable medical syringes |
US13/384,582 US9050423B2 (en) | 2009-07-23 | 2010-07-14 | Medical non reusable syringes |
CN201080033405.5A CN102481420B (en) | 2009-07-23 | 2010-07-14 | Medical not re-usable syringe |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IN1733CH2009 | 2009-07-23 | ||
IN1733/CHE/2009 | 2009-07-23 |
Publications (3)
Publication Number | Publication Date |
---|---|
WO2011024188A2 true WO2011024188A2 (en) | 2011-03-03 |
WO2011024188A3 WO2011024188A3 (en) | 2011-04-28 |
WO2011024188A4 WO2011024188A4 (en) | 2011-06-23 |
Family
ID=43628498
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IN2010/000472 WO2011024188A2 (en) | 2009-07-23 | 2010-07-14 | Medical non reusable syringes |
Country Status (7)
Country | Link |
---|---|
US (1) | US9050423B2 (en) |
EP (1) | EP2456492A4 (en) |
JP (1) | JP2012533393A (en) |
CN (1) | CN102481420B (en) |
BR (1) | BR112012001303A2 (en) |
MX (1) | MX2012000866A (en) |
WO (1) | WO2011024188A2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109432529A (en) * | 2018-10-11 | 2019-03-08 | 浙江大学医学院附属妇产科医院 | A kind of disposable medical gynecological washer |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3320954A (en) * | 1963-12-30 | 1967-05-23 | Pharmaseal Lab | Hypodermic syringe with breakable polypropylene needle adaptor |
US4026287A (en) * | 1975-12-10 | 1977-05-31 | Irene Haller | Syringe with retractable cannula |
JPS5663359A (en) * | 1979-10-31 | 1981-05-29 | Sherwood Medical Ind Inc | Throwaway rouelle type locking system injector |
GB2184657A (en) * | 1985-12-19 | 1987-07-01 | Roger Hubert Morley | Hypodermic syringe |
FR2621824A1 (en) * | 1987-10-19 | 1989-04-21 | Medipro | Device for making single-use syringes irreparably unusable after first use |
JPH02147069A (en) * | 1988-11-29 | 1990-06-06 | Terumo Corp | Disposable syringe |
US5000738A (en) * | 1989-05-11 | 1991-03-19 | Lavallo Frank | Protective syringe with frangible barrel |
CN1065021A (en) | 1991-03-15 | 1992-10-07 | 王习锋 | The novel disposable syringe of band vulnerable area |
US5415646A (en) * | 1994-05-11 | 1995-05-16 | Roth; Noah M. | One use safety locking syringe |
CA2193136A1 (en) * | 1996-12-18 | 1998-06-18 | Cesar B. Oliveira | Safety syringe |
US6036671A (en) * | 1997-07-17 | 2000-03-14 | Frey; William J. | Breakaway syringe and disposal apparatus |
CN2443734Y (en) | 2000-11-06 | 2001-08-22 | 王希平 | Self-lock easy breaking disposable syringe |
CN2500317Y (en) * | 2001-09-05 | 2002-07-17 | 竺勇明 | Disposable syringe cylinder |
CN2542270Y (en) | 2002-04-27 | 2003-04-02 | 梁朝 | Once-used syringe |
US6800067B2 (en) * | 2002-12-24 | 2004-10-05 | Steve Lee | Two-component safety syringe |
TWM274964U (en) | 2005-05-19 | 2005-09-11 | Chang-Tsz Chen | Self-destructive safety injector |
CN2841035Y (en) * | 2005-08-26 | 2006-11-29 | 孔凡国 | Disposable syringe |
CN201076655Y (en) * | 2007-07-17 | 2008-06-25 | 徐延芹 | Disposable self-destroying syringe |
-
2010
- 2010-07-14 MX MX2012000866A patent/MX2012000866A/en active IP Right Grant
- 2010-07-14 EP EP10811375.4A patent/EP2456492A4/en not_active Withdrawn
- 2010-07-14 BR BR112012001303A patent/BR112012001303A2/en not_active IP Right Cessation
- 2010-07-14 US US13/384,582 patent/US9050423B2/en not_active Expired - Fee Related
- 2010-07-14 JP JP2012521157A patent/JP2012533393A/en active Pending
- 2010-07-14 WO PCT/IN2010/000472 patent/WO2011024188A2/en active Application Filing
- 2010-07-14 CN CN201080033405.5A patent/CN102481420B/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of EP2456492A4 * |
Also Published As
Publication number | Publication date |
---|---|
US20120123333A1 (en) | 2012-05-17 |
CN102481420B (en) | 2016-09-28 |
MX2012000866A (en) | 2012-06-01 |
EP2456492A4 (en) | 2014-11-05 |
EP2456492A2 (en) | 2012-05-30 |
BR112012001303A2 (en) | 2016-02-10 |
US9050423B2 (en) | 2015-06-09 |
CN102481420A (en) | 2012-05-30 |
JP2012533393A (en) | 2012-12-27 |
WO2011024188A4 (en) | 2011-06-23 |
WO2011024188A3 (en) | 2011-04-28 |
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