CA1071052A - Injection syringe - Google Patents
Injection syringeInfo
- Publication number
- CA1071052A CA1071052A CA245,346A CA245346A CA1071052A CA 1071052 A CA1071052 A CA 1071052A CA 245346 A CA245346 A CA 245346A CA 1071052 A CA1071052 A CA 1071052A
- Authority
- CA
- Canada
- Prior art keywords
- barrel
- finger rest
- syringe
- rear end
- plunger
- 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.)
- Expired
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
- A61M5/3129—Syringe barrels
- A61M5/3135—Syringe barrels characterised by constructional features of the proximal end
-
- 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
- A61M5/3137—Specially designed finger grip means, e.g. for easy manipulation of the syringe rod
- A61M2005/3139—Finger grips not integrally formed with the syringe barrel, e.g. using adapter with finger grips
Abstract
ABSTRACT OF THE DISCLOSURE
An injection syringe comprises a cylindrical barrel provided at its open rear end with an initially finger rest and at its forward end with an inserted or permanently fitted canule or with a conical fitting for the subsequent fixing of a canule, and a plunger which closes the open rear end of the barrel and which is slidably displaceable inside the barrel by a ram. The barrel of the syringe is formed at its forward end with a head of any desired kind and is provided at its open rear end either in its external or its internal cylindrical surface with one or more annular or similarly shaped recesses or grooves, whereas the peripheral inside or outside surface of the finger rest is formed with a corresponding number of projecting ridges which may be in the form of arcuate ridge segments. These ridges or ridge segments are complementary to the recesses or grooves in the barrel in such a way that when the finger rest is fitted to the barrel the ridges or ridge segments on the finger rest engage the recesses or grooves in the barrel.
An injection syringe comprises a cylindrical barrel provided at its open rear end with an initially finger rest and at its forward end with an inserted or permanently fitted canule or with a conical fitting for the subsequent fixing of a canule, and a plunger which closes the open rear end of the barrel and which is slidably displaceable inside the barrel by a ram. The barrel of the syringe is formed at its forward end with a head of any desired kind and is provided at its open rear end either in its external or its internal cylindrical surface with one or more annular or similarly shaped recesses or grooves, whereas the peripheral inside or outside surface of the finger rest is formed with a corresponding number of projecting ridges which may be in the form of arcuate ridge segments. These ridges or ridge segments are complementary to the recesses or grooves in the barrel in such a way that when the finger rest is fitted to the barrel the ridges or ridge segments on the finger rest engage the recesses or grooves in the barrel.
Description
1~71052 Injection Syringe This invention relates generally to injection syringes comprising a cylindrical barrel provided at its open rear end with a finger rest and at its forward end with an inserted or permanently fitted canule or with a conical fitting for the subsequent fixing of a canule, and a plunger which closes the open rear end of the barrel and which is slidably displace-able therein by a ram.
Such injection syringes are used in medical practice for the administration of injectants subcutaneously, intramuscularly intravenously or in other conventional ways.
Generally, these syringes are made of glass and sometimes of synthetic plastics. Their principal functional parts are the barrel which serves for the reception of the injectant in liquid or solid form, and the plunger which can be moved from the outside by the ram to displace the injectant through the outlet opening in the barrel neck or through a terminal fitting into the body by a canule.
As is well understood such an injection syringe is mani-pulated with one hand and must therefore be provided with a surface for applying pressure with the thumb and with a finger rest for the index and middle fingers of the operator's hand.
This finger rest is a component which is either integrally formed with the barrel of the syringe or separate ~ therefrom and adapted to be fitted over the end of the ,; barrel and to be thus secured. In such a case the finger , rest need not be made of glass like the barrel ~ L
,;
, . . -. ~ . . . .
1071~$Z
of the syringe, instead of which it may consist of a synthetic plastics or some other suitable material.
For ensuring that the separate finger rest is a firm fit a known practice is to form a projecting ring on the end of the barrel of thë syringe.
However, the presence of such a projecting ring is open to the objection that conventional machines are unsuitable for producing and further working a syringewith a barrel of such a kind.
The attachment of a finger rest to the cylindrical barrel having a project-ing ring requires special machines which significantly raises the cost of production.
Thus this invention is concerned with an injection syringe to which a separately produced finger rest can be attached in such a way that ~ostly conventional automatic machines can be used for the production and further working of the barrel of the syringe.
Thus the present invention provides an injection syringe comprising:
a. a cylindrical barrel having a forward end forming a head and an open rear end;
b. the barrel having an outside surface with a finger rest region in the vicinity of its open rear end with at least one annular groove;
c. a cannula held by the head;
d. a plunger closing the open rear end of the barrel;
e. a ram for slidably displacing the plunger inside the barrel; and f. a separate, one-piece finger rest having an inside surface with a mating surface that is correspondingly shaped with respect to the shape of said finger rest region and includes at least one ridge which is complementary to thegroove in the barrel;
.
. ~
:.
. ' -g. the finger rest being~sli'dlngly rlt~ea to the barrel with the ridge on the finger rest being effective to engage the groove in the barrel and secure the finger rest in place;
h. the barrel includes an annular thickening ridge on each side of its groove to create a snap action effect when the finger rest is pressfitted to the barrel;
i. said barrel being made of a material such that deformation of the outside of the barrel is accompanied by a constriction of the internal cross section of the precisely cylindrical barrel.
-2a-i .
, . . . -` `: ' ", ' . . ' ' :' ' ' ' ~ ,. : .
~7~(~5;Z
The cross section of the ridge on the finger rest prefer-ably matches the cross section of the groove in the barrel of the syringe.
On each side of the groove the barrel may be formed with an annular thickening ridge for the purpose of achieving a snap action effect when the separate finger rest is fitted to the barrel.
The barrel and the finger rest of the assembled syringe may consist of the same or of different materials, such as glass, synthetic plastics or metal.
An embodiment of the invention will now be described by way of example and with reference to the accompanying drawing, in which:-Fig. 1 is an elevational view, partly in section, of an injection syringe according to the invention, ready for use, but not yet provided with a finger rest;
Fig. 2 is a section of an initially separate finger rest, and Fig. 3 is a view similar to that shown in Fig. 1 but showing the complete injection syringe after having been provided with the finger rest.
The shape of an integrally formed head on the cylindrical barrel 1 of a syringe will be clear from an inspection of Fig. 1 and 3. A canule 4 is inserted into this head by having been passed through a cap member 5 and located by a sealing bush in the necked forward end of the barrel of the syringe.
Instead of the canule 4 being secured in the head of the barrel as described, the head may also be provided with a conical fitting for the subsequent insertion of a canule. Such a fitting might advantageously consist of an aluminum cap, a rubber washer and a conical member embraced by a separate 107~0S2 thimble type seal.
The rear end of the barrel 1 of the syringe is open and, as illustrated in Fig. 1 and 3, slidably contains a plunger 6 which maintains sealing contact with the inside surface of the barrel, being formed of a plurality of discs. The plunger 6 is provided with internal threads which enable it to be detachably affixed to a hollow ram 7. When the syringe is not in use this hollow ram 7 may serve for accommodating the canule 4.
Fig. 2 illustrates an initially separate finger rest 2.
This rest consists of a cylindrical body having one or more radial extensions at one end. These extensions provide surfaces which can be gripped by the index and middle fingers. Internally the cylindrical body contains an annular ridge 3 which might be divided into a number of parts forming arcuate ridge segments.
This finger rest 2 i8 pushed over the open rear end of the cylindrical barrel 1 of the syringe on which it is retained in the required position. This is because the annular ridge 3 or the ridge segments snap into engagement with an annular groove 1' provided in the outside surface of the barrel 1 in the vicinity of the open rear end thereof (see Fig. 1). The dimensions of the annular groove 1' and of the annular ridge 3 are so matched that when in engagement the finger rest 2 will be firmly located.
It is self-evident that instead of one ridge and one groove two or more ridges 3 and grooves 1' may be provided.
In order to improve the reliability with which the finger rest 2 is located and held on the open end of the barrel 1 and in order to achieve a reliable snap action effect the wall of the barrel, as shown at 1", on each side of the annular groove 1' is slightly thickened. The thickening ridges 1" thus formed slightly increase the external diameter of the cylindrical , barrel 1 of the syringe. In -this context it may be observed that the deformation of the outside surface of the barrel 1 will be accompanied by a slight constriction of the internal cross section of the precisely cylindrical part, and that advantage can be taken of this constriction for braking the plunger. With the same end in view a small ring of a diameter slightly exceeding the internal diameter of the barrel 1 may be mounted on the ram 7 to the rear of the threaded end of the ram. After the resistance due to the inward constriction of the barrel 1 due to its deformation has been overcome the plunger 6 can be easily pushed forwards. When the plunger 6 is retracted the ring on the ram 7 has a braking effect and prevents the plunger 6 from being pulled out of the barrel otherwise than by the application of some force.
In a different arrangement of the barrel this is provided with recesses or annular grooves on its inside surface. Part of the finger rest is in such a case inserted into the barrel, the ridges or arcuate ridge segments being in such a case situated on the external peripheral surface of this part of the finger rest. After having been forced into position the finger rest will then form an additional stop for the plunger 6 when drawing in the injectant or an additioanl preparation.
The advantage achieved over conventional arrangements is that the barrel 1 of the syringe can be handled by conventional machines without the need of additional devices, such as required for barrels having projecting flanges for the retention of the finger rest.
It is also an advantage that by reason of its particular design the finger rest is satisfactorily located on or in the barrel of the syringe without requiring the use of special aids, such as adhesives, hot air or the like for its affixa-tion.
With reference to the finger rest it should be noted that its inside may be so constructed that the snap action effect is obtained both when the finger rest is fitted by pushing it on over the head end of the barrel or over the rear end which is closed by the plunger.
A not insignificant advantage is the generation of the braking effect on the plunger. The proposed design admits of diverse modifications,as will be readily understood.
Yet another advantage is that the production cost is sub-10 stantially lower than that of conventional syringes.
~ ence the injection syringe proposed by the invention may beregardedas aone-way article, i.e. as an expendable article.
The invention may be embodied in other specific forms with-out departing from the spirit or essential characteristics thereof.
The embodiment is therefore to be considered in all respects as illustrative and not restrictive.
l. ., . , .. ,, . :
, ~ , , , : - :
Such injection syringes are used in medical practice for the administration of injectants subcutaneously, intramuscularly intravenously or in other conventional ways.
Generally, these syringes are made of glass and sometimes of synthetic plastics. Their principal functional parts are the barrel which serves for the reception of the injectant in liquid or solid form, and the plunger which can be moved from the outside by the ram to displace the injectant through the outlet opening in the barrel neck or through a terminal fitting into the body by a canule.
As is well understood such an injection syringe is mani-pulated with one hand and must therefore be provided with a surface for applying pressure with the thumb and with a finger rest for the index and middle fingers of the operator's hand.
This finger rest is a component which is either integrally formed with the barrel of the syringe or separate ~ therefrom and adapted to be fitted over the end of the ,; barrel and to be thus secured. In such a case the finger , rest need not be made of glass like the barrel ~ L
,;
, . . -. ~ . . . .
1071~$Z
of the syringe, instead of which it may consist of a synthetic plastics or some other suitable material.
For ensuring that the separate finger rest is a firm fit a known practice is to form a projecting ring on the end of the barrel of thë syringe.
However, the presence of such a projecting ring is open to the objection that conventional machines are unsuitable for producing and further working a syringewith a barrel of such a kind.
The attachment of a finger rest to the cylindrical barrel having a project-ing ring requires special machines which significantly raises the cost of production.
Thus this invention is concerned with an injection syringe to which a separately produced finger rest can be attached in such a way that ~ostly conventional automatic machines can be used for the production and further working of the barrel of the syringe.
Thus the present invention provides an injection syringe comprising:
a. a cylindrical barrel having a forward end forming a head and an open rear end;
b. the barrel having an outside surface with a finger rest region in the vicinity of its open rear end with at least one annular groove;
c. a cannula held by the head;
d. a plunger closing the open rear end of the barrel;
e. a ram for slidably displacing the plunger inside the barrel; and f. a separate, one-piece finger rest having an inside surface with a mating surface that is correspondingly shaped with respect to the shape of said finger rest region and includes at least one ridge which is complementary to thegroove in the barrel;
.
. ~
:.
. ' -g. the finger rest being~sli'dlngly rlt~ea to the barrel with the ridge on the finger rest being effective to engage the groove in the barrel and secure the finger rest in place;
h. the barrel includes an annular thickening ridge on each side of its groove to create a snap action effect when the finger rest is pressfitted to the barrel;
i. said barrel being made of a material such that deformation of the outside of the barrel is accompanied by a constriction of the internal cross section of the precisely cylindrical barrel.
-2a-i .
, . . . -` `: ' ", ' . . ' ' :' ' ' ' ~ ,. : .
~7~(~5;Z
The cross section of the ridge on the finger rest prefer-ably matches the cross section of the groove in the barrel of the syringe.
On each side of the groove the barrel may be formed with an annular thickening ridge for the purpose of achieving a snap action effect when the separate finger rest is fitted to the barrel.
The barrel and the finger rest of the assembled syringe may consist of the same or of different materials, such as glass, synthetic plastics or metal.
An embodiment of the invention will now be described by way of example and with reference to the accompanying drawing, in which:-Fig. 1 is an elevational view, partly in section, of an injection syringe according to the invention, ready for use, but not yet provided with a finger rest;
Fig. 2 is a section of an initially separate finger rest, and Fig. 3 is a view similar to that shown in Fig. 1 but showing the complete injection syringe after having been provided with the finger rest.
The shape of an integrally formed head on the cylindrical barrel 1 of a syringe will be clear from an inspection of Fig. 1 and 3. A canule 4 is inserted into this head by having been passed through a cap member 5 and located by a sealing bush in the necked forward end of the barrel of the syringe.
Instead of the canule 4 being secured in the head of the barrel as described, the head may also be provided with a conical fitting for the subsequent insertion of a canule. Such a fitting might advantageously consist of an aluminum cap, a rubber washer and a conical member embraced by a separate 107~0S2 thimble type seal.
The rear end of the barrel 1 of the syringe is open and, as illustrated in Fig. 1 and 3, slidably contains a plunger 6 which maintains sealing contact with the inside surface of the barrel, being formed of a plurality of discs. The plunger 6 is provided with internal threads which enable it to be detachably affixed to a hollow ram 7. When the syringe is not in use this hollow ram 7 may serve for accommodating the canule 4.
Fig. 2 illustrates an initially separate finger rest 2.
This rest consists of a cylindrical body having one or more radial extensions at one end. These extensions provide surfaces which can be gripped by the index and middle fingers. Internally the cylindrical body contains an annular ridge 3 which might be divided into a number of parts forming arcuate ridge segments.
This finger rest 2 i8 pushed over the open rear end of the cylindrical barrel 1 of the syringe on which it is retained in the required position. This is because the annular ridge 3 or the ridge segments snap into engagement with an annular groove 1' provided in the outside surface of the barrel 1 in the vicinity of the open rear end thereof (see Fig. 1). The dimensions of the annular groove 1' and of the annular ridge 3 are so matched that when in engagement the finger rest 2 will be firmly located.
It is self-evident that instead of one ridge and one groove two or more ridges 3 and grooves 1' may be provided.
In order to improve the reliability with which the finger rest 2 is located and held on the open end of the barrel 1 and in order to achieve a reliable snap action effect the wall of the barrel, as shown at 1", on each side of the annular groove 1' is slightly thickened. The thickening ridges 1" thus formed slightly increase the external diameter of the cylindrical , barrel 1 of the syringe. In -this context it may be observed that the deformation of the outside surface of the barrel 1 will be accompanied by a slight constriction of the internal cross section of the precisely cylindrical part, and that advantage can be taken of this constriction for braking the plunger. With the same end in view a small ring of a diameter slightly exceeding the internal diameter of the barrel 1 may be mounted on the ram 7 to the rear of the threaded end of the ram. After the resistance due to the inward constriction of the barrel 1 due to its deformation has been overcome the plunger 6 can be easily pushed forwards. When the plunger 6 is retracted the ring on the ram 7 has a braking effect and prevents the plunger 6 from being pulled out of the barrel otherwise than by the application of some force.
In a different arrangement of the barrel this is provided with recesses or annular grooves on its inside surface. Part of the finger rest is in such a case inserted into the barrel, the ridges or arcuate ridge segments being in such a case situated on the external peripheral surface of this part of the finger rest. After having been forced into position the finger rest will then form an additional stop for the plunger 6 when drawing in the injectant or an additioanl preparation.
The advantage achieved over conventional arrangements is that the barrel 1 of the syringe can be handled by conventional machines without the need of additional devices, such as required for barrels having projecting flanges for the retention of the finger rest.
It is also an advantage that by reason of its particular design the finger rest is satisfactorily located on or in the barrel of the syringe without requiring the use of special aids, such as adhesives, hot air or the like for its affixa-tion.
With reference to the finger rest it should be noted that its inside may be so constructed that the snap action effect is obtained both when the finger rest is fitted by pushing it on over the head end of the barrel or over the rear end which is closed by the plunger.
A not insignificant advantage is the generation of the braking effect on the plunger. The proposed design admits of diverse modifications,as will be readily understood.
Yet another advantage is that the production cost is sub-10 stantially lower than that of conventional syringes.
~ ence the injection syringe proposed by the invention may beregardedas aone-way article, i.e. as an expendable article.
The invention may be embodied in other specific forms with-out departing from the spirit or essential characteristics thereof.
The embodiment is therefore to be considered in all respects as illustrative and not restrictive.
l. ., . , .. ,, . :
, ~ , , , : - :
Claims (4)
IS CLAIMED ARE DEFINED AS FOLLOWS:
1. An injection syringe comprising:
a. a cylindrical barrel having a forward end forming a head and an open rear end;
b. the barrel having an outside surface with a finger rest region in the vicinity of its open rear end with at least one annular groove;
c. a cannula held by the head;
d. a plunger closing the open rear end of the barrel;
e. a ram for slidably displacing the plunger inside the barrel; and f. a separate, one-piece finger rest having an inside surface with a mating surface that is correspondingly shaped with respect to the shape of said finger rest region and includes at least one ridge which is complementary to the groove in the barrel;
g. the finger rest being slidingly fitted to the barrel with the ridge on the finger rest being effective to engage the groove in the barrel and secure the finger rest in place;
h. the barrel includes an annular thickening ridge on each side of its groove to create a snap action effect when the finger rest is press fitted to the barrel;
i. said barrel being made of a material such that deformation of the outside of the barrel is accompanied by a constriction of the internal cross section of the precisely cylindrical barrel.
a. a cylindrical barrel having a forward end forming a head and an open rear end;
b. the barrel having an outside surface with a finger rest region in the vicinity of its open rear end with at least one annular groove;
c. a cannula held by the head;
d. a plunger closing the open rear end of the barrel;
e. a ram for slidably displacing the plunger inside the barrel; and f. a separate, one-piece finger rest having an inside surface with a mating surface that is correspondingly shaped with respect to the shape of said finger rest region and includes at least one ridge which is complementary to the groove in the barrel;
g. the finger rest being slidingly fitted to the barrel with the ridge on the finger rest being effective to engage the groove in the barrel and secure the finger rest in place;
h. the barrel includes an annular thickening ridge on each side of its groove to create a snap action effect when the finger rest is press fitted to the barrel;
i. said barrel being made of a material such that deformation of the outside of the barrel is accompanied by a constriction of the internal cross section of the precisely cylindrical barrel.
2. An injection syringe as defined in claim 1, wherein the ram includes a ring of a diameter slightly exceeding the internal diameter of the barrel, said ring being mounted to the rear of the threaded end of the ram.
3. An injection syringe according to claim 1 or 2, wherein the barrel of the syringe has on both sides of its external annular groove an annular wall thickening in order to achieve a snap action effect upon pushing over the finger rest and to form as a result of the deformation of the end region of the barrel occurring after pushing over the finger rest, a constricted end of the barrel of the syringe which serves as a brake for pulling out the plunger.
4. An injection syringe according to claim 1 or 2, characterized in that the barrel of the syringe consists of glass or plastic material and the finger rest consists of plastic material or metal.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE7504229 | 1975-02-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1071052A true CA1071052A (en) | 1980-02-05 |
Family
ID=6650187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA245,346A Expired CA1071052A (en) | 1975-02-12 | 1976-02-10 | Injection syringe |
Country Status (13)
| Country | Link |
|---|---|
| US (1) | US4068661A (en) |
| JP (2) | JPS51103691A (en) |
| AT (1) | AT367301B (en) |
| BE (1) | BE838480A (en) |
| CA (1) | CA1071052A (en) |
| CH (1) | CH591249A5 (en) |
| DK (1) | DK35776A (en) |
| ES (1) | ES444675A1 (en) |
| FR (1) | FR2332766A1 (en) |
| GB (1) | GB1496292A (en) |
| IT (1) | IT1055181B (en) |
| NL (1) | NL7601406A (en) |
| SE (1) | SE409078B (en) |
Families Citing this family (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3339817C2 (en) * | 1982-12-21 | 1986-07-10 | Bünder Glas GmbH, 4980 Bünde | Injection syringe |
| US4886495A (en) * | 1987-07-08 | 1989-12-12 | Duoject Medical Systems Inc. | Vial-based prefilled syringe system for one or two component medicaments |
| US5364369A (en) * | 1987-07-08 | 1994-11-15 | Reynolds David L | Syringe |
| IT1217595B (en) * | 1988-05-13 | 1990-03-30 | Molteni & C | ANTI-CONTACT DEVICE FOR INJECTION OF DENTAL ANESTHETIC SOLUTIONS CONTAINED IN CARTRIDGE |
| US4909788A (en) * | 1988-12-14 | 1990-03-20 | Georges Egolf | Syringe with adjustable winged collar |
| US4990135A (en) * | 1989-08-29 | 1991-02-05 | Truesdale Jr R Grant | Inoculator and needle therefor |
| US5282792A (en) * | 1992-07-21 | 1994-02-01 | Becton, Dickinson And Company | Syringe having two component barrel |
| US5338309A (en) * | 1992-07-21 | 1994-08-16 | Becton, Dickinson And Company | Syringe having two component barrel |
| US5322514A (en) * | 1992-08-19 | 1994-06-21 | Sherwood Medical Company | Needle assembly with detachable wing |
| US5509903A (en) * | 1992-11-19 | 1996-04-23 | Dennis T. Grendahl | Syringe having a flexible collar |
| US5419775A (en) * | 1994-01-18 | 1995-05-30 | Allergan, Inc. | Syringe flange adapter and method |
| JP3546335B2 (en) * | 1994-06-21 | 2004-07-28 | 生化学工業株式会社 | Auxiliary tools for syringe barrels |
| JP3306796B2 (en) * | 1995-01-26 | 2002-07-24 | 大成化工株式会社 | Glass cartridge for injection cylinder pre-filled with chemical solution |
| JP3283229B2 (en) * | 1998-02-16 | 2002-05-20 | 株式会社大協精工 | Syringe adapter system for chemical prefilled |
| US6719730B2 (en) | 1998-04-17 | 2004-04-13 | Becton, Dickinson And Company | Safety shield system for prefilled syringes |
| US6679864B2 (en) | 1998-04-17 | 2004-01-20 | Becton Dickinson And Company | Safety shield system for prefilled syringes |
| US6616639B2 (en) | 1998-04-17 | 2003-09-09 | Becton, Dickinson And Company | Safety shield system for syringes |
| US20040044315A1 (en) * | 2002-08-29 | 2004-03-04 | Becton, Dickinson And Company | Needle holder |
| US7534233B2 (en) * | 2003-09-23 | 2009-05-19 | Becton, Dickson And Company | Flush syringe having anti-reflux features |
| DE102005042076B4 (en) * | 2005-08-31 | 2007-06-06 | Bayer Schering Pharma Ag | Burst protection device for a syringe |
| MX2009011191A (en) * | 2007-04-20 | 2010-01-20 | Jennifer Barbour | Ergonomic syringe. |
| US20110046559A1 (en) * | 2009-08-21 | 2011-02-24 | Becton Dickinson France S.A.S. | Syringe Assembly Having a Flexible or Slidable Flange |
| JP2011206394A (en) * | 2010-03-30 | 2011-10-20 | Terumo Corp | Syringe |
| WO2013120029A1 (en) | 2012-02-10 | 2013-08-15 | Abiogenix Inc. | Dispensing device |
| US9545479B2 (en) * | 2012-12-07 | 2017-01-17 | Ronald Earl ORR | Syringe assist device |
| CN105287097B (en) * | 2015-10-29 | 2017-09-15 | 遂宁市中心医院 | Ophthalmology silicone oil extraction apparatus |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1331805A (en) * | 1917-07-09 | 1920-02-24 | White S Dental Mfg Co | Syringe |
| US1712084A (en) * | 1922-11-04 | 1929-05-07 | Cook Lab Inc | Hypodermic syringe |
| US1752384A (en) * | 1928-07-02 | 1930-04-01 | William F Jamison | Hypodermic syringe |
| US1950137A (en) * | 1929-11-25 | 1934-03-06 | Frank Le C Dowe | Syringe |
| US1832533A (en) * | 1931-01-28 | 1931-11-17 | Leurner E Creasy | Syringe |
| US2512882A (en) * | 1949-08-17 | 1950-06-27 | R G Truesdale Co Inc | Serum inoculator |
| US2823675A (en) * | 1957-11-04 | 1958-02-18 | Sciurba Joseph | Hypodermic syringe assembly |
| CH366634A (en) * | 1959-01-28 | 1963-01-15 | Hennings Werner | Injection ampoule with handle |
| FR1219503A (en) * | 1959-03-27 | 1960-05-18 | Seringues Ind Soc D Expl Des | Handle, with stopper, suitable for injection syringes |
| US3316909A (en) * | 1963-12-30 | 1967-05-02 | Pharmaseal Lab | Hypodermic syringe operable by one hand |
| DE2154017A1 (en) * | 1971-10-29 | 1973-05-03 | Hans Ruppert | DISPOSABLE INJECTION SYRINGE WITH SPECIAL NEEDLE |
| US3921633A (en) * | 1974-05-06 | 1975-11-25 | Survival Technology | Finger grip device |
| JPH0515247U (en) * | 1991-08-06 | 1993-02-26 | 日本アビオニクス株式会社 | Power switch structure |
-
1976
- 1976-01-14 AT AT0022976A patent/AT367301B/en not_active IP Right Cessation
- 1976-01-16 CH CH48576A patent/CH591249A5/xx not_active IP Right Cessation
- 1976-01-28 ES ES444675A patent/ES444675A1/en not_active Expired
- 1976-01-29 DK DK35776*#A patent/DK35776A/en unknown
- 1976-02-04 SE SE7601165-9A patent/SE409078B/en not_active IP Right Cessation
- 1976-02-09 US US05/656,461 patent/US4068661A/en not_active Expired - Lifetime
- 1976-02-10 JP JP51012898A patent/JPS51103691A/ja active Pending
- 1976-02-10 IT IT20040/76A patent/IT1055181B/en active
- 1976-02-10 CA CA245,346A patent/CA1071052A/en not_active Expired
- 1976-02-11 NL NL7601406A patent/NL7601406A/en unknown
- 1976-02-12 GB GB5537/76A patent/GB1496292A/en not_active Expired
- 1976-02-12 BE BE164254A patent/BE838480A/en not_active IP Right Cessation
- 1976-02-12 FR FR7603806A patent/FR2332766A1/en active Granted
-
1981
- 1981-11-18 JP JP1981170900U patent/JPS57100935U/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| BE838480A (en) | 1976-05-28 |
| AT367301B (en) | 1982-06-25 |
| CH591249A5 (en) | 1977-09-15 |
| ATA22976A (en) | 1981-11-15 |
| JPS57100935U (en) | 1982-06-21 |
| US4068661A (en) | 1978-01-17 |
| NL7601406A (en) | 1976-08-16 |
| JPS51103691A (en) | 1976-09-13 |
| GB1496292A (en) | 1977-12-30 |
| FR2332766B1 (en) | 1982-05-07 |
| SE7601165L (en) | 1976-08-13 |
| DK35776A (en) | 1976-08-16 |
| ES444675A1 (en) | 1978-01-01 |
| SE409078B (en) | 1979-07-30 |
| IT1055181B (en) | 1981-12-21 |
| FR2332766A1 (en) | 1977-06-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |