GB2345854A - A multifunctional syringe with safety slide sleeve - Google Patents
A multifunctional syringe with safety slide sleeve Download PDFInfo
- Publication number
- GB2345854A GB2345854A GB9901158A GB9901158A GB2345854A GB 2345854 A GB2345854 A GB 2345854A GB 9901158 A GB9901158 A GB 9901158A GB 9901158 A GB9901158 A GB 9901158A GB 2345854 A GB2345854 A GB 2345854A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tube
- slide sleeve
- connecting tube
- infusion
- latching
- 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.)
- Granted
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
- A61M5/14—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
- A61M5/178—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
- A61M5/321—Means for protection against accidental injuries by used needles
- A61M5/3243—Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel
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
A multifunctional syringe with safety slide sleeve, including: a connecting tube 1, a top end of the connecting tube 1 being formed with a needle connecting section 14 for connecting with an injection needle 3, a bottom end of the connecting tube 1 being connected with an infusion tube 2, an outer circumference of the connecting tube being formed with a latching groove 11 near the top end thereof, at least one guiding rib 12 being formed on the connecting tube 1 and axially downward extending from a lower side of the latching groove 11, the guiding rib 12 being downward tapered; and a safety slide sleeve 4 slidably fitted around the infusion tube 2 or the connecting tube 1, a bottom end of a fitting hole 41 of the slide sleeve 4 being formed with an inward extending latching flange 411. When the slide sleeve 4 is slided upward, the latching flange 411 is guided by the guiding rib 12 to be smoothly latched in the latching groove 11 of the connecting tube 1. Accordingly, the injection needle can be totally received and hidden in the slide sleeve 4 so as to avoid impalement or infection of other people with AIDS, hepatitis, etc.
Description
TITLE
A MULTIFUNCTIONAL SYRINGE WITH SAFETY SLIDE
SLEEVE
The present invention relates to a multifunctional syringe with safety slide sleeve, and more particularly to a syringe in which after injection, the injection needle is retracted and hidden in a safety slide sleeve so as to avoid impalement and infection of medical personnel or other people.
All the existing medically used A. V. fustula set, scalp vein set and general infusion injection needle include a single injection needle serially connected with an infusion tube for intravenous injection. A needle sheath is fitted around the injection needle. In injection, the needle sheath is removed from the injection needle. After the injection is completed, the needle sheath is again fitted around the injection needle for avoiding impalement. However, the needle sheath has a very small fitting hole. Therefore, it often takes place that when inserting the injection needle back into the needle sheath, medical personnel are incautiously impaled by the used injection needle. This may lead to infection of the medical personnel with AIDS virus, hepatitis, etc.
In addition, in the medical dropper equipments such as A. V. fustula set, scalp vein set, general infusion injection needle and intravenous infusion needle, a wingtype fixing plate structure is provided. However, such wing-type fixing plate cannot be replaceably applied to different kinds and sizes of needles so that the medical institute must prepare all the above needles for multiple uses. This leads to inconvenience in use.
It is therefore a primary object of the present invention to provide a multifunctional syringe with safety slide sleeve which slidably firmly engages with an upper end of a connecting tube so as to retract and hide the injection needle connected with the top of the connecting tube in the safety slide sleeve. Accordingly, after injection, the injection needle is totally hidden in the slide sleeve and then discarded. Therefore, the injection needle is prevented from being exposed outside so as to avoid impalement or infection of other people.
Moreover, the present invention has simple structure and is applicable to scalp vein set, intravenous infusion needle and general dropper infusion set so as to avoid waste of medical resource.
According to the above object, the multifunctional syringe with safety slide sleeve comprises:
a connecting tube including a tube body formed with
a central axial through hole, an infusion tube
connecting section being formed at a bottom end of
the tube body, a needle connecting section being
formed at a top end of the tube body, a latching
groove being formed on the tube body near the top
end thereof, at least one guiding rib being formed
on the tube body and axially downward extending from
a lower side of the latching groove;
an infusion tube serially connected with the
infusion tube connecting section of the bottom end
of the connecting tube;
an injection needle serially connected with the
needle connecting section of the top end of the
connecting tube; and
a safety slide sleeve including a sleeve section
formed with a central axial fitting hole in which
the connecting tube is fitted, a bottom end of the
fitting hole being formed with an inward extending
latching flange, whereby when the slide sleeve is
slided upward, the latching flange is guided by and
slided over the guiding rib to be latched in the
latching groove of the connecting tube so as to
totally enclose the injection needle in the fitting
hole.
Further featureswill be described by reference toexamples shown in the accompanying drawings, wherein:
Fig. 1 is a perspective exploded view of the
present invention;
Fig. 2 is a sectional view of the present invention
in injection;
Fig. 3 is a sectional view of the present invention,
in which after injection, the slide sleeve is
pushed upward;
Fig. 4 is a sectional view taken along line 4-4 of
Fig. 3;
Fig. 5 is a sectional view of the present invention,
showing that the injection needle is hidden in
the slide sleeve;
Fig. 6 shows another embodiment of the connecting
tube of the present invention; and
Fig. 7 shows that the dropper infusion throttle
tube is separated from the dropper connector
of the present invention.
Please refer to Figs. 1 to 5. The multifunctional syringe of the present invention includes: a connecting tube 1, an outer circumference of the connecting tube 1 being formed with a latching groove 11, at least one guiding rib 12 being disposed on the connecting tube 1 under the latching groove 11 ; an infusion tube 2 serially connected to a bottom end of the connecting tube 1 ; an injection needle 3 serially connected with a top end of the connecting tube 1, in normal state, the injection needle 3 being fitted in a protective cavity 321 of a needle sheath 32 ; and a safety slide sleeve 4 slidably fitted around the infusion tube 2 or the connecting tube 1. A bottom end of a fitting hole 41 of the slide sleeve 4 is formed with an inward extending latching flange 411.
When the slide sleeve 4 is slided upward, the latching flange 411 is guided by the guiding rib 12 to smoothly latch with the latching groove 11 of the connecting tube 1. Accordingly, the injection needle 3 can be totally received and hidden in the slide sleeve 4 so as to avoid impalement or infection of other people.
The connecting tube 1 includes: a tube body 10 formed with a central axial through hole 101 as a passage of liquid medicine; a latching groove 11 formed on outer circumference of the tube body 10 near the top end thereof for latching with the latching flange 411 of the slide sleeve 4; at least one guiding rib 12 axially downward extending from a lower side of the latching groove 11 of the tube body 10, the guiding rib 12 being downward tapered; an infusion tube connecting section 13 formed at lower end of the tube body 10 for connecting with the infusion tube 2; and a needle connecting section 14 formed at top end of the tube body 10 for snugly fitted with a needle holder 31 disposed at bottom end of the injection needle 3.
The safety slide sleeve 4 includes: a sleeve section 40 formed with a central axial fitting hole 41 in which the connecting tube 1 or the infusion tube 2 is fitted, the bottom end of the fitting hole 41 being formed with an inward extending latching flange 411 for slidably latching with the latching groove 11 of the connecting tube 1; and multiple slipproof ribs 42 axially formed on outer circumference of the sleeve section 40 for facilitating holding of the slide sleeve 4.
Different types of injection needles are replaceably connected with the connecting tube 1 as necessary for use in A. V. fustula set, scalp vein set, dropper infusion needle, etc.
Referring to Fig. 2, in application, a connector 6 of the infusion tube 2 is serially connected an output connector 5 of a dropper infusion throttle tube 2'. The needle connecting section 14 of the top end of the connecting tube 1 is connected with the needle holder 31 of the injection needle 3. An input connector 5'of the dropper infusion throttle tube 2'is serially connected with a dropper connector 7 to form a dropper infusion needle. After injection, the medical personnel can hold the slide sleeve 4 with one hand and slide the slide sleeve 4 upward as shown in Figs. 3 and 4. When the latching flange 411 of the bottom end of the slide sleeve 4 is slided over the guiding rib 12, the guiding rib 12 outward expands the latching flange 411 so as to slightly resiliently expand and deform the bottom end of the slide sleeve 4 from an original circular shape into a substantially elliptic shape as shown by phantom line of
Fig. 4. Accordingly, the latching flange 411 of the slide sleeve 4 can smoothly pass through the guiding rib 12 to latch with the latching groove 11 of the connecting tube 1. Under such circumstance, the injection needle 3 is totally enclosed in the slide sleeve 4 to avoid impalement of other people as shown in Fig. 5.
Alternatively, in the syringe of the present invention, a throttle 2a can be installed on the infusion tube 2 to directly form a dropper infusion throttle tube (not shown).
Referring to Fig. 7, the input connector 5'of the input end of the dropper infusion throttle tube 2'is connected with the dropper connector 7. According to actual requirement of the medical side, multiple infusion tubes (not shown) can be serially connected between the dropper connector 7 and the input connector 5'so as to elongate the infusion distance. (The existing dropper infusion throttle tube is integrally connected with the dropper connector and it is impossible to serially connect other infusion tubes therewith so that the infusion distance cannot be elongated.)
Fig. 6 shows a modification of the connecting tube 1, in which the guiding ribs 12a are spiralled around the tube body 10 of the connecting tube 1 so as to reduce the slope. Accordingly, when the latching flange 411 of the bottom end of the slide sleeve 4 is slided over the guiding ribs 12a, the latching flange 411 is more smoothly spirally guided to be latched in the latching groove 11 of the connecting tube 1. Therefore, the safety slide sleeve 4 can be operated more easily.
The multifunctional syringe of the present invention is characterized in that at least one guiding rib 12 axially downward extends from a lower side of the latching groove 11 of the connecting tube 1. The guiding rib 12 is downward tapered. When the latching flange 411 of the slide sleeve 4 is slided over the guiding rib 12, the bottom end of the slide sleeve 4 is slightly resiliently expanded, whereby the latching flange 411 can be smoothly latched in the latching groove 11 of the connecting tube 1 so as to totally enclose the injection needle 3.
Accroding to the above arrangements, the present invention has the following advantages:
1. The safety slide sleeve can be smoothly operated
with little strength.
2. The syringe of the present invention has simple
structure and can be easily operated.
3. The injection needle is hidden in the slide
sleeve without exposure so as to avoid
impalement of other people.
4. Multiple infusion tubes can be serially
connected according to the requirement of actual
medical site so as to elongate the infusion
distance.
It is to be understood that the above description and drawings are only used for illustrating some embodiments of the present invention, not intended to limit the scope thereof. Any variation and derivation from the above description and drawings should be included in the scope of the present invention.
Claims (7)
- CLAIMS 1. A multifunctional syringe with safety slide sleeve, comprising: a connecting tube including a tube body formed with a central axial through hole, an infusion tube connecting section being formed at a bottom end of the tube body, a needle connecting section being formed at a top end of the tube body, a latching groove being formed on the tube body near the top end thereof, at least one guiding rib being formed on the tube body and axially downward extending from a lower side of the latching groove; an infusion tube serially connected with the infusion tube connecting section of the bottom end of the connecting tube; an injection needle serially connected with the needle connecting section of the top end of the connecting tube; and a safety slide sleeve including a sleeve section formed with a central axial fitting hole in which the connecting tube is fitted, a bottom end of the fitting hole being formed with an inward extending latching flange, whereby when the slide sleeve is slided upward, the latching flange is guided by and slided over the guiding rib to be latched in the latching groove of the connecting tube so as to totally enclose the injection needle in the fitting hole.
- 2. A multifunctional syringe as claimed in claim 1, wherein the guiding rib outward projects from the lower side of the latching groove and is downward tapered.
- 3. A multifunctional syringe as claimed in claim 1, wherein the guiding rib outward projects from the lower side of the latching groove and is downward tapered and spiralled around the tube body of the connecting tube.
- 4. A multifunctional syringe as claimed in claim 1, wherein multiple slipproof ribs are axially formed on outer circumference of the sleeve section of the slide sleeve.
- 5. A multifunctional syringe as claimed in claim 1, wherein an end of the infusion tube is connected with a connector for serially connecting with other infusion tubes.
- 6. A multifunctional syringe as claimed in claim 5, wherein a throttle is installed on the infusion tube and an input end of the infusion tube is serially connected with a connector.
- 7. A multifunctional syringe with safety slide sleeve substantially as herein described with reference to Figures 1 to 7 of the accompanying drawings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9901158A GB2345854B (en) | 1999-01-19 | 1999-01-19 | A multifunctional syringe with safety slide sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9901158A GB2345854B (en) | 1999-01-19 | 1999-01-19 | A multifunctional syringe with safety slide sleeve |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB9901158D0 GB9901158D0 (en) | 1999-03-10 |
| GB2345854A true GB2345854A (en) | 2000-07-26 |
| GB2345854B GB2345854B (en) | 2003-09-17 |
Family
ID=10846140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9901158A Expired - Fee Related GB2345854B (en) | 1999-01-19 | 1999-01-19 | A multifunctional syringe with safety slide sleeve |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2345854B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2833847A1 (en) * | 2001-12-13 | 2003-06-27 | Taiject Medical Device Co Ltd | FLOW REGULATOR FOR AN INTRAVENOUS PERFUSION ASSEMBLY PROVIDED WITH MEANS FOR RECEIVING AND PROTECTING THE INFUSION NEEDLE AFTER USING THE SAME |
| WO2007049585A1 (en) * | 2005-10-28 | 2007-05-03 | Terumo Kabushiki Kaisha | Protector and needle set |
| WO2015058402A1 (en) * | 2013-10-23 | 2015-04-30 | 陆军 | Safe self-destruction component for injection needles |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0356002A2 (en) * | 1988-07-20 | 1990-02-28 | City Of Hope | Needle protectors for a blood collection apparatus |
| GB2237201A (en) * | 1989-09-28 | 1991-05-01 | Ricardo Adrian Brizuela | Protecting device for guide tubes used with blood and serum bags and the like |
| WO1995028979A1 (en) * | 1994-04-20 | 1995-11-02 | Noble House Group Pty. Ltd. | Protective device |
| WO1996028204A1 (en) * | 1995-03-16 | 1996-09-19 | City Of Hope | Intravascular needle with movable safety shield |
-
1999
- 1999-01-19 GB GB9901158A patent/GB2345854B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0356002A2 (en) * | 1988-07-20 | 1990-02-28 | City Of Hope | Needle protectors for a blood collection apparatus |
| GB2237201A (en) * | 1989-09-28 | 1991-05-01 | Ricardo Adrian Brizuela | Protecting device for guide tubes used with blood and serum bags and the like |
| WO1995028979A1 (en) * | 1994-04-20 | 1995-11-02 | Noble House Group Pty. Ltd. | Protective device |
| WO1996028204A1 (en) * | 1995-03-16 | 1996-09-19 | City Of Hope | Intravascular needle with movable safety shield |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2833847A1 (en) * | 2001-12-13 | 2003-06-27 | Taiject Medical Device Co Ltd | FLOW REGULATOR FOR AN INTRAVENOUS PERFUSION ASSEMBLY PROVIDED WITH MEANS FOR RECEIVING AND PROTECTING THE INFUSION NEEDLE AFTER USING THE SAME |
| WO2007049585A1 (en) * | 2005-10-28 | 2007-05-03 | Terumo Kabushiki Kaisha | Protector and needle set |
| JP2007117438A (en) * | 2005-10-28 | 2007-05-17 | Terumo Corp | Protector and needle set |
| AU2006307183B2 (en) * | 2005-10-28 | 2011-07-28 | Terumo Kabushiki Kaisha | Protector and needle set |
| CN101296717B (en) * | 2005-10-28 | 2011-09-07 | 泰尔茂株式会社 | Protector and needle set |
| AU2006307183C1 (en) * | 2005-10-28 | 2012-07-05 | Terumo Kabushiki Kaisha | Protector and needle set |
| WO2015058402A1 (en) * | 2013-10-23 | 2015-04-30 | 陆军 | Safe self-destruction component for injection needles |
Also Published As
| Publication number | Publication date |
|---|---|
| GB9901158D0 (en) | 1999-03-10 |
| GB2345854B (en) | 2003-09-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20050119 |