CA1164753A - Injection-syringe - Google Patents
Injection-syringeInfo
- Publication number
- CA1164753A CA1164753A CA000356671A CA356671A CA1164753A CA 1164753 A CA1164753 A CA 1164753A CA 000356671 A CA000356671 A CA 000356671A CA 356671 A CA356671 A CA 356671A CA 1164753 A CA1164753 A CA 1164753A
- Authority
- CA
- Canada
- Prior art keywords
- sleeve
- injection
- syringe
- needle
- stop
- 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
- A61M5/46—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 controlling depth of insertion
-
- 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
- A61M5/42—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 desensitising skin, for protruding skin to facilitate piercing, or for locating point where body is to be pierced
- A61M5/422—Desensitising skin
Abstract
A B S T R A C T
A device is disclosed for injection syringes for intramuscular and subcutaneous injections in human and veterinary medicine. The device is substantially in the form of a tube, the inside diameter of which is somewhat larger than the outside diameter of an injection syringe associated therewith.
Located within the tubular sleeve are a clamping element and a stop-element, arranged at a distance from each other equal to the desired depth of injection, plus a safety distance between the tip of the needle and the edge of the sleeve.
When a certain pressure, acting upon the injection-syringe in the direction of the lower edge of the sleeve, is exceeded, the clamping element releases the body of the syringe carrying the injection needle, allowing the syringe to advance. The advance of the syringe is halted by stop-element. The clamp-ing and stop elements may be in the form of beads projecting into the interior of the sleeve and thus constricting the internal cross-section thereof. The clamping element may also be in the form of a single tongue or of two diametri-cally opposite tongues on the peripheral surface of the sleeve, each of the tongues being provided with a nose.
A device is disclosed for injection syringes for intramuscular and subcutaneous injections in human and veterinary medicine. The device is substantially in the form of a tube, the inside diameter of which is somewhat larger than the outside diameter of an injection syringe associated therewith.
Located within the tubular sleeve are a clamping element and a stop-element, arranged at a distance from each other equal to the desired depth of injection, plus a safety distance between the tip of the needle and the edge of the sleeve.
When a certain pressure, acting upon the injection-syringe in the direction of the lower edge of the sleeve, is exceeded, the clamping element releases the body of the syringe carrying the injection needle, allowing the syringe to advance. The advance of the syringe is halted by stop-element. The clamp-ing and stop elements may be in the form of beads projecting into the interior of the sleeve and thus constricting the internal cross-section thereof. The clamping element may also be in the form of a single tongue or of two diametri-cally opposite tongues on the peripheral surface of the sleeve, each of the tongues being provided with a nose.
Description
1~47S3 The invention relates to a device for use in injection-syringes to facilitate intramusc-llar and subcutaneous injections in human and veterinary medicine.
In the case of injections of this kind, in order to achieve substantially painless penetration, it is necessary to tauten the skin at the location of the injection, to insert the needle quickly through the skin, to avoid any pressure or pain resulting ~rom deflection and, especially in the case of self-injection, to overcome a psychological fear-threshold before the needle is inserted.
It is known that absence of pain during an injection is dependent largely upon the skill of the physician or nurse or, in the case of self-injection, upon the skill of the person involved. This applies particularly in the case of diabetics who must take two or more daily insulin injections.
At present there are no known simply-designed injection-syringe devices which substan~ially facilitate the injection of medications.
It is, therefore, the object of the invention to make available a device which facilitates injections even for the unskilled. Moreover, this device is to be easy to handle, inexpensive to produce, and easily combinable with conventional syringes.
According to the invention there is provided a device for injection syringes having a hollow cylindrical body and an exposed injection needle extending below the cylindrical body and connected for flow o liquid from the body through the needle for intramuscular and subcutaneous injections in human or veterinary medicine, which comprises an essentially tubular sleeve of substantially uniform inner diameter, whose inner diameter is slightly larger than the outer diameter of the hollow cylindrical body of an associated injection syringe to permit sliding the sleeve onto the cylindrical body, and which is provided in the interior with at least one clamping-or holding element disposed at an intermediate point to provide an upper portion of the sleeve encircling the cylindrical body and which holding element releases, when a certain pressure is reached, the forward motion of the syringe body with the needle which is disposed in the sleeve, whereby the length of the sleeve and the position of the clamping element in it are so dimensioned that the needle remains completely in the sleeve before the pressure is applied~ and that, after the application of the pressure, the desired depth of injection can be reached outside of the sleeve by a stop element in the sleeve which stops the syringe body which moves toward the end of said sleeve when the desired pressure is reached.
The main advantages provided by the invention are as follows: the whole injection procedure is facilitated, especially in the case of self-injection and in situations where only one hand can be used; the pain produced by deflection-pressure is minimized, the skin is tautened, and the needle is inserted rapidly; if the adapter is made of an opaque material, the needle cannot be seen; this reduces the fear of the needle and makes it easier for the physician to prescribe self-injection; the use of a stop prevents the shank of the needle from pressing upon the location of the insertion and expanding or otherwise impairing it; in the case of packaged injection-syringes, the device can replace the small protective tube commonly fitted over the needle; thus eliminating the cost of producing the said tube.
The invention is explained in detail hereinafter in conjunction with the embodiment illustrated in the drawings attached hereto, from which additional advantages and characteristics of the invention may be gathered. In the said drawings:
Pigure 1 is a perspective view of one embodiment of the invention;
Figure 2 is a section through the embodiment shown in Figure l;
Figure 3, as compared with Figure 1, shows a slightly modified . .~
116~753 embodiment of the invention;
Figures 4a to 4e are diagrammatic representations of the phases of the injection procedure, showing the positions of the syringe in the device at different stages;
Figure 5 shows a device according to the invention integrated with the injection-syringe;
- .
h -2a-1~64753 Figure 6 illustrates another embodiment of the device according to the invention;
Figure 7 is a perspective view of still another embodiment of the invention, in which the edge of the sleeve is oblique.
Figure 1 is a perspective view of one embodiment of the invention, in the form of a tubular sleeve 1 having two diametrically opposite tongues 6,6' on its peripheral surface. The inside diameter of sleeve 1 is slightly larger than the outside diameter of an injection-syringe 3 associated there-with, as may be gathered from Figures 4a to 4e. In this designJ lower edge 4 of the sleeve is at right angles to the length thereof.
Figure 2 is a cross-section, in perspective, of another embodiment of sleeve 1, which has either one or two tongues 6 on its peripheral surface.
Tongue 6 has a nose 7 upon which syringe 3, not shown, bears at the beginning of the injection procedure, which will be described hereinafter, in greater detail, in conjunction with Figures 4a to 4e. Located at a distance d from the lower edge of nose 7 is a stop-element 11 which is directed conically into the interior of sleeve 1 and is in the form of an annular bead.
Figure 3 is a perspective cross-section of another embodiment of sleeve 1 comprising a single tongue 6 on the peripheral surfacc. The stop
In the case of injections of this kind, in order to achieve substantially painless penetration, it is necessary to tauten the skin at the location of the injection, to insert the needle quickly through the skin, to avoid any pressure or pain resulting ~rom deflection and, especially in the case of self-injection, to overcome a psychological fear-threshold before the needle is inserted.
It is known that absence of pain during an injection is dependent largely upon the skill of the physician or nurse or, in the case of self-injection, upon the skill of the person involved. This applies particularly in the case of diabetics who must take two or more daily insulin injections.
At present there are no known simply-designed injection-syringe devices which substan~ially facilitate the injection of medications.
It is, therefore, the object of the invention to make available a device which facilitates injections even for the unskilled. Moreover, this device is to be easy to handle, inexpensive to produce, and easily combinable with conventional syringes.
According to the invention there is provided a device for injection syringes having a hollow cylindrical body and an exposed injection needle extending below the cylindrical body and connected for flow o liquid from the body through the needle for intramuscular and subcutaneous injections in human or veterinary medicine, which comprises an essentially tubular sleeve of substantially uniform inner diameter, whose inner diameter is slightly larger than the outer diameter of the hollow cylindrical body of an associated injection syringe to permit sliding the sleeve onto the cylindrical body, and which is provided in the interior with at least one clamping-or holding element disposed at an intermediate point to provide an upper portion of the sleeve encircling the cylindrical body and which holding element releases, when a certain pressure is reached, the forward motion of the syringe body with the needle which is disposed in the sleeve, whereby the length of the sleeve and the position of the clamping element in it are so dimensioned that the needle remains completely in the sleeve before the pressure is applied~ and that, after the application of the pressure, the desired depth of injection can be reached outside of the sleeve by a stop element in the sleeve which stops the syringe body which moves toward the end of said sleeve when the desired pressure is reached.
The main advantages provided by the invention are as follows: the whole injection procedure is facilitated, especially in the case of self-injection and in situations where only one hand can be used; the pain produced by deflection-pressure is minimized, the skin is tautened, and the needle is inserted rapidly; if the adapter is made of an opaque material, the needle cannot be seen; this reduces the fear of the needle and makes it easier for the physician to prescribe self-injection; the use of a stop prevents the shank of the needle from pressing upon the location of the insertion and expanding or otherwise impairing it; in the case of packaged injection-syringes, the device can replace the small protective tube commonly fitted over the needle; thus eliminating the cost of producing the said tube.
The invention is explained in detail hereinafter in conjunction with the embodiment illustrated in the drawings attached hereto, from which additional advantages and characteristics of the invention may be gathered. In the said drawings:
Pigure 1 is a perspective view of one embodiment of the invention;
Figure 2 is a section through the embodiment shown in Figure l;
Figure 3, as compared with Figure 1, shows a slightly modified . .~
116~753 embodiment of the invention;
Figures 4a to 4e are diagrammatic representations of the phases of the injection procedure, showing the positions of the syringe in the device at different stages;
Figure 5 shows a device according to the invention integrated with the injection-syringe;
- .
h -2a-1~64753 Figure 6 illustrates another embodiment of the device according to the invention;
Figure 7 is a perspective view of still another embodiment of the invention, in which the edge of the sleeve is oblique.
Figure 1 is a perspective view of one embodiment of the invention, in the form of a tubular sleeve 1 having two diametrically opposite tongues 6,6' on its peripheral surface. The inside diameter of sleeve 1 is slightly larger than the outside diameter of an injection-syringe 3 associated there-with, as may be gathered from Figures 4a to 4e. In this designJ lower edge 4 of the sleeve is at right angles to the length thereof.
Figure 2 is a cross-section, in perspective, of another embodiment of sleeve 1, which has either one or two tongues 6 on its peripheral surface.
Tongue 6 has a nose 7 upon which syringe 3, not shown, bears at the beginning of the injection procedure, which will be described hereinafter, in greater detail, in conjunction with Figures 4a to 4e. Located at a distance d from the lower edge of nose 7 is a stop-element 11 which is directed conically into the interior of sleeve 1 and is in the form of an annular bead.
Figure 3 is a perspective cross-section of another embodiment of sleeve 1 comprising a single tongue 6 on the peripheral surfacc. The stop
2(1 is in the form of a partition lla having a central aperture 9 for the passage of injection-needle 2. The said central aperture is surrounded by a coaxial sleeve 12 arranged in such a manner that, when sleeve 1 is fitted to the syringe, sleeve 12 surrounds the needle. The preferred material for sleeve 1 is an opaque plastic, the wall thickness of the said sleeve preferably being between 0.5 and 1.5 mm. The plastic used must have a specific resistance to bending and a minimal resiliency or clamping element 10 (Figure 4), to ensure that the syringe can be advanced only after the resilient clamping force of element 11 has been overcome. The length of sleeve 1, and the distance between clamping element 10 and lower edge 4 of the sleeve are such that, at the beginning of the injection procedure,~needle 2 lies entirely within sleeve 1. After syringe 3 has been released, by applying the necessary pressure to clamping element 10, needle 2 emerges from the sleeve and penetrates the skin of th~ person to whom the injection is being admin-istered. Distance d between clamping element 10 and stop-element 11 is such that it corresponds to the desired depth of injection plus a safety distance between the point of the needle and edge 4 of the sleeve.
The various phases of the procedure are described hereinafter in conjunction with Figures 4a to 4e. In this case, sleeve 1 is as shown in Figure 1, with two tongues 6,6' on its peripheral surface. Syringe 3 is shown only in part, the upper part thereof being omitted since it is not required for an explanation of the injection procedure. Fitted to syringe body 5 is injection-needle 2 which, in Figure 4a, lies entirely within sleeve 1. Stop-element 11 in Figures 4a to 4e is a ring projecting conically inwards.
In Figure 4a, syringe 3 with sleeve 1 has been applied to the skin without pressure. The pressure applied to syringe 3 increases gradually from Pigure 4b onwards, reaching its maximal value in the phase shown in Pigure 4e.
According to Figure 4b, the surface of the skin has been tautened by the application of pressure to the upper end of syringe 3; this causes the skin to arch slightly past lower edge 4 of the sleeve, into the interior thereof.
Increased pressure on the upper end of the syringe increase the compressive stress upon the skin around lower edge 4 of the sleeve, producing a so-called deflection-pressure on the surface of the skin.
Experience shows, however, that the patient finds this pressure or pain very slight, The two tongues, each equipped with an inwardly projecting nose, are spread apart by syringe element 5~ but the force of clamping element 10 has not yet been overcome by the pressure applied to syringe 3. This first happens in the phase illustrated in Figure 4d, where the lower edge of the syringe is located between clamping element 10 and stop-element 11.
At this time, needle 2 has penetrated the skin almost without pain.
Figure 4e illustrates the final phase of the injection procedure, in which stop-elemtnt 11, for example a moulded ring in the plastic sleeve, halts the lower edge of syringe-element 5. The shank of the needle does not come into contact with the location of the insertion, as may be seen in this figure. In this position, the fluid is injected at a constant pressure by advancing the piston in syringe 3.
Figure 5 illustrates an embodiment in which needle 2 and sleeve 1 are integrated. Since in these days one-way injection is usual, it is possible, without any substantial increase in production costs, ~o mould sleeve 1 to syringe 3 during manufacture.
Figure 6 shows still another embodiment of the invention, in which clamping element 10 is in the form of a bead running around the inside of sleeve 1 and constricting the cross-section thereof. This design is p~rticularly simple to produce, since it is quite easy to mould a bead of this kind to the internal surface of sleeve 1 during production. The height of the said bead may be between 0.1 and 0.5 mm.
Figure 7 is a yerspective of another design of sleeve 1, with the upper part thereof omitted. The interior of this sleeve is identical with the designs shown in Figures 1 to 3 and 6. Edge 4' of the sleeve runs at an angle to the longitudinal axis thereof and is slightly waved. Edge 4' of the sleeve forms, with one of the outer longitudinal surfaces 13 thereof, ~' ,, , ':' - - .
4~53 a slightly downwardly-curved tip 15, whereas at the junction with the other longitudinal surface, the edge of the sleeve is uniformly rounded. This design is intended, more particularly, for cases where the syringe must be applied at an ang~e. Downwardly-curved tip 15 makes it possible to pin-point the location of the sleeve on the surface of the skin, to ensure penetration at the desired location. This design may also be integrated with a syringe to form a single unit.
The various phases of the procedure are described hereinafter in conjunction with Figures 4a to 4e. In this case, sleeve 1 is as shown in Figure 1, with two tongues 6,6' on its peripheral surface. Syringe 3 is shown only in part, the upper part thereof being omitted since it is not required for an explanation of the injection procedure. Fitted to syringe body 5 is injection-needle 2 which, in Figure 4a, lies entirely within sleeve 1. Stop-element 11 in Figures 4a to 4e is a ring projecting conically inwards.
In Figure 4a, syringe 3 with sleeve 1 has been applied to the skin without pressure. The pressure applied to syringe 3 increases gradually from Pigure 4b onwards, reaching its maximal value in the phase shown in Pigure 4e.
According to Figure 4b, the surface of the skin has been tautened by the application of pressure to the upper end of syringe 3; this causes the skin to arch slightly past lower edge 4 of the sleeve, into the interior thereof.
Increased pressure on the upper end of the syringe increase the compressive stress upon the skin around lower edge 4 of the sleeve, producing a so-called deflection-pressure on the surface of the skin.
Experience shows, however, that the patient finds this pressure or pain very slight, The two tongues, each equipped with an inwardly projecting nose, are spread apart by syringe element 5~ but the force of clamping element 10 has not yet been overcome by the pressure applied to syringe 3. This first happens in the phase illustrated in Figure 4d, where the lower edge of the syringe is located between clamping element 10 and stop-element 11.
At this time, needle 2 has penetrated the skin almost without pain.
Figure 4e illustrates the final phase of the injection procedure, in which stop-elemtnt 11, for example a moulded ring in the plastic sleeve, halts the lower edge of syringe-element 5. The shank of the needle does not come into contact with the location of the insertion, as may be seen in this figure. In this position, the fluid is injected at a constant pressure by advancing the piston in syringe 3.
Figure 5 illustrates an embodiment in which needle 2 and sleeve 1 are integrated. Since in these days one-way injection is usual, it is possible, without any substantial increase in production costs, ~o mould sleeve 1 to syringe 3 during manufacture.
Figure 6 shows still another embodiment of the invention, in which clamping element 10 is in the form of a bead running around the inside of sleeve 1 and constricting the cross-section thereof. This design is p~rticularly simple to produce, since it is quite easy to mould a bead of this kind to the internal surface of sleeve 1 during production. The height of the said bead may be between 0.1 and 0.5 mm.
Figure 7 is a yerspective of another design of sleeve 1, with the upper part thereof omitted. The interior of this sleeve is identical with the designs shown in Figures 1 to 3 and 6. Edge 4' of the sleeve runs at an angle to the longitudinal axis thereof and is slightly waved. Edge 4' of the sleeve forms, with one of the outer longitudinal surfaces 13 thereof, ~' ,, , ':' - - .
4~53 a slightly downwardly-curved tip 15, whereas at the junction with the other longitudinal surface, the edge of the sleeve is uniformly rounded. This design is intended, more particularly, for cases where the syringe must be applied at an ang~e. Downwardly-curved tip 15 makes it possible to pin-point the location of the sleeve on the surface of the skin, to ensure penetration at the desired location. This design may also be integrated with a syringe to form a single unit.
Claims (14)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. Device for injection syringes having a hollow cylindrical body and an exposed injection needle extending below the cylindrical body and connected for flow of liquid from the body through the needle for intramuscular and subcutaneous injections in human or veterinary medicine, which comprises an essentially tubular sleeve of substantially uniform inner diameter, whose inner diameter is slightly larger than the outer diameter of the hollow cylindrical body of an associated injection syringe to permit sliding the sleeve onto the cylindrical body, and which is provided in the interior with at least one clamping-or holding element disposed at an intermediate point to provide an upper portion of the sleeve encircling the cylindrical body and which holding element releases, when a certain pressure is reached, the forward motion of the syringe body with the needle which is disposed in the sleeve, whereby the length of the sleeve and the position of the clamping element in it are so dimensioned that the needle remains completely in the sleeve before the pressure is applied, and that, after the application of the pressure, the desired depth of injection can be reached outside of the sleeve by a stop element in the sleeve which stops the syringe body which moves toward the end of said sleeve when the desired pressure is reached.
2. A device according to claim 1, characterized in that the stop-element is arranged in the interior of the sleeve at a predetermined distance from the clamping element, and in that the syringe-element, as it advances towards the lower edge of the sleeve, comes up against the said stop-element and is halted there.
3. A device according to claim 2, characterized in that the distance between the clamping element and the stop-element corresponds to the desired depth of injection, plus a safety distance between the tip of the needle and the lower edge of the sleeve.
4. A device according to claim 1, characterized in that the sleeve is made of plastic and in that the clamping element comprises at least one longitudinally slotted tongue having an inwardly-projecting nose.
5. A device according to claim 4, characterized in that the sleeve comprises two opposing tongues at the periphery thereof.
6. A device according to claim 2, characterized in that the stop-element is in the form of a circumferential constriction in the interior of the sleeve.
7. A device according to claim 6, characterized in that the sleeve is made of an opaque plastic and in that the stop-element is in the form of a bead moulded to the internal surface thereof.
8. A device according to claim 1, characterized in that the sleeve comprises, in the vicinity of the lower edge of the sleeve and of the stop-element, a partition having a central aperture for the passage of the injection-needle.
9. A device according to claim 8, characterized in that the partition comprises a central coaxial sleeve which guides and protects the injection-needle.
10. A device according to claim 1, characterized in that the clamping element is in the form of a bead running around the interior of the sleeve and constricting the cross-section thereof.
11. A device according to claim 10, characterized in that the bead is moulded onto the internal wall of the sleeve, the height thereof being between 0.1 and 0.5 mm.
12. A device according to claim 1, characterized in that the lower edge of the sleeve runs at an angle to the length of the sleeve.
13. A device according to claim 13, characterized in that the oblique edge of the sleeve is slightly waved and forms, with one of the longitudinal outer sides of the sleeve, a slightly downwardly-curved tip whereas, at the junction with the other outer side, the said edge is uniformly rounded.
14. A device according to claim 1, 2 or 3, characterized in that the sleeve is integral with the injection syringe.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP2929425.5 | 1979-07-20 | ||
| DE19792929425 DE2929425A1 (en) | 1979-07-20 | 1979-07-20 | DEVICE FOR INJECTION SYRINGES FOR INTRAMUSCULAR AND SUBENTANE INJECTION |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1164753A true CA1164753A (en) | 1984-04-03 |
Family
ID=6076293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000356671A Expired CA1164753A (en) | 1979-07-20 | 1980-07-21 | Injection-syringe |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US4373526A (en) |
| EP (1) | EP0022977B1 (en) |
| JP (1) | JPS56500914A (en) |
| AR (1) | AR220477A1 (en) |
| AT (1) | ATE10808T1 (en) |
| CA (1) | CA1164753A (en) |
| CS (1) | CS510880A2 (en) |
| DE (2) | DE2929425A1 (en) |
| DK (1) | DK122081A (en) |
| HU (1) | HU184310B (en) |
| WO (1) | WO1981000210A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4874383A (en) * | 1987-03-17 | 1989-10-17 | Mcnaughton R David | Syringe shield |
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| US2845065A (en) * | 1954-02-05 | 1958-07-29 | Gabriel Daniel | Deception element for hypodermic syringes |
| DE1166419B (en) * | 1958-09-03 | 1964-03-26 | Dr Fritz Linder | Injection syringe |
| US3399675A (en) * | 1965-10-23 | 1968-09-03 | Clifford W. Hill | Hypodermic injector including a needle guide with pain desensitizing means |
| US3820542A (en) * | 1971-02-11 | 1974-06-28 | Ampoules Inc | Intramuscular injection devices |
-
1979
- 1979-07-20 DE DE19792929425 patent/DE2929425A1/en not_active Withdrawn
-
1980
- 1980-07-08 JP JP50148580A patent/JPS56500914A/ja active Pending
- 1980-07-08 DE DE8080103882T patent/DE3069826D1/en not_active Expired
- 1980-07-08 US US06/253,925 patent/US4373526A/en not_active Expired - Fee Related
- 1980-07-08 EP EP80103882A patent/EP0022977B1/en not_active Expired
- 1980-07-08 AT AT80103882T patent/ATE10808T1/en not_active IP Right Cessation
- 1980-07-08 WO PCT/DE1980/000099 patent/WO1981000210A1/en unknown
- 1980-07-17 HU HU801783A patent/HU184310B/en unknown
- 1980-07-18 CS CS805108A patent/CS510880A2/en unknown
- 1980-07-18 AR AR281825A patent/AR220477A1/en active
- 1980-07-21 CA CA000356671A patent/CA1164753A/en not_active Expired
-
1981
- 1981-03-18 DK DK122081A patent/DK122081A/en not_active Application Discontinuation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4874383A (en) * | 1987-03-17 | 1989-10-17 | Mcnaughton R David | Syringe shield |
| US5024660A (en) * | 1987-03-17 | 1991-06-18 | Mcnaughton R David | Syringe shield |
Also Published As
| Publication number | Publication date |
|---|---|
| HU184310B (en) | 1984-08-28 |
| EP0022977A1 (en) | 1981-01-28 |
| US4373526A (en) | 1983-02-15 |
| AR220477A1 (en) | 1980-10-31 |
| DE3069826D1 (en) | 1985-01-31 |
| ATE10808T1 (en) | 1985-01-15 |
| WO1981000210A1 (en) | 1981-02-05 |
| EP0022977B1 (en) | 1984-12-19 |
| CS510880A2 (en) | 1985-06-13 |
| JPS56500914A (en) | 1981-07-09 |
| DK122081A (en) | 1981-03-18 |
| DE2929425A1 (en) | 1981-02-12 |
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| Date | Code | Title | Description |
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| MKEX | Expiry |