Patent EP0114792A2 successfully refreshed from Google Patents.
EP0114792A2
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EP
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Endermic injector device
Assignee: SICIM SpA
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Filing: 1984-01-17
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Granted: —
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Expires: 2004-01-17
Abstract
Abstract This invention concerns an endermic injector device (10) for subcutaneous injections without a needle, said device (10) being suitable for injecting under pressure at least one fluid drawn in a measured dose from replaceable phials (15) which are advantageously of a throwaway kind, whereby nozzle means (18), means to aspirate fluid, means to expel fluid and means to provide the required expulsion force are comprised, said device (10) including in cooperation: - an aspiration and ejection group (27) consisting of valve means (19) to draw and deliver fluid, a cylindrical chamber (33) to hold fluid together with a removable small piston (34), and safety means with an alignment head (32), - a group to control aspiration and expulsion (29) which comprises means for axial withdrawal of said small piston (34), tripping means (36-38) and spring means (52) for the axial forward movement of said small piston (34), - means to regulate (60) the pre-loading of said spring means (52) and means (30) to display the quantity of the dose, and - means (14) to hold and position said phials (15).
Inventors
- 👤 Mario Geat
- 👤 Luciano Dornik
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 17:48
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/178; A61M5/30; A61M5/19; A61M5/20; A61M5/204; A61M5/2066
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
181 words
1 - Endermic injector device (10) for subcutaneous injections without a needle, said device being suitable for injecting under pressure at least one fluid drawn in a measured dose from replaceable phials (15) which are advantageously of a throwaway type, whereby nozzle means (18), means to aspirate fluid, means to expel fluid and means to provide the required force of expulsion are comprised, said device (10) being characterized by including in cooperation: - an aspiration and ejection group (27) which consists of valve means (19) to draw and deliver fluid, a cylindrical chamber (33) to contain fluid together with a removable small piston(34), and safety means with an alignment head (32), - a group (29) to control aspiration and expulsion which comprises means for axial withdrawal of said small piston (34), tripping means (36-38), and spring means (52) for the forward axial movement of said small piston (34), - means (60) to regulate the pre-loading of said spring means (52), and means to display (30) the quantity of the dose, and - means (14) to hold and position said phials (15).
Claim 2
Dependent Claim
181 words
1 - Endermic injector device (10) for subcutaneous injections without a needle, said device being suitable for injecting under pressure at least one fluid drawn in a measured dose from replaceable phials (15) which are advantageously of a throwaway type, whereby nozzle means (18), means to aspirate fluid, means to expel fluid and means to provide the required force of expulsion are comprised, said device (10) being characterized by including in cooperation: - an aspiration and ejection group (27) which consists of valve means (19) to draw and deliver fluid, a cylindrical chamber (33) to contain fluid together with a removable small piston(34), and safety means with an alignment head (32), - a group (29) to control aspiration and expulsion which comprises means for axial withdrawal of said small piston (34), tripping means (36-38), and spring means (52) for the forward axial movement of said small piston (34), - means (60) to regulate the pre-loading of said spring means (52), and means to display (30) the quantity of the dose, and - means (14) to hold and position said phials (15).
Claim 3
Dependent Claim
54 words
2 - Endermic injector device (10) as in Claim 1, characterized by the fact that the means (14) to hold and position phials (15) comprise at least one containing lodgement (214) with two needles (17-16) cooperating with valve means (19) for temporary connection with the filling chamber (33) and with the outside (116) respectively.
Claim 4
Dependent Claim
45 words
3 - Endermic injector device (10) as in Claims 1 and 2, characterized by the fact that the valve means (19) comprise shutter means (31) able to take up an injecting position and a specific filling position for each lodgement (214) holding phials (15). 1
Claim 5
Dependent Claim
52 words
4 - Endermic injector device (10) as in Claim 1 and in one or the other of the Claims thereafter, characterized by the fact that the injecting position of the shutter means (31) of the valve means (19) is conditioned by safety means with an alignment head (32) in their backward position.
Claim 6
Dependent Claim
63 words
5 - Endermic injector device (10) as in Claim 1 and in one or another of the Claims thereafter, characterized by the fact that the specific extreme loading positions (31A) of the shutter means (31) of the valve means (19) are defined by the fin means (132) of the alignment head means (32) in the forward position (32A) of the fin means (132).
Claim 7
Dependent Claim
59 words
6 - Endermic injector device (10) as in Claim 1 and in one or another of the Claims thereafter, characterized by the fact that the cylindrical chamber means (33) is made to communicate respectively with the phials (15) and with the nozzle means (18) by the momentary reciprocal position of the shutter means (31) in the valve means (19).
Claim 8
Dependent Claim
180 words
7 - Endermic injector device (10) as in Claim 1 and in one or another of the Claims thereafter, characterized by the fact that the means for axial withdrawal of the small piston (34) comprise in cooperation: - radially movable comb means (36), - sleeve means (37) to position radially and to guide said comb means (36), - cup means (38) having a forward end tooth (138) cooperating with the back and with the forward bevelling (136) of said comb means (36) in the momentary radial positioning of said comb means (36) in relation to threaded stub means (335), - threaded stub means (335) solidly fixed to plunger means (35) which bear at their end said small piston (34) in such a way that the latter (34) can be removed, - spring means (39) for the normal positioning of said cup means ( 38 ) , and 11 - actuation means (40) to vary momentarily the reciprocal position of said cup means (38) in relation to said comb means (36), said actuation means (40) being actuated by trigger means (24).
Claim 9
Dependent Claim
51 words
8 - Endermic injector device (10) as in Claim 1 and in one or another of the Claims thereafter, characterized by the fact that the plunger means (35) comprise, at a desired intermediate position, collar means (235) to position and resist spring displacement means (52) together with guide shaft means (352).
Claim 10
Dependent Claim
146 words
9 - Endermic injector device (10) as in Claim 1 and in one or another of the Claims thereafter, characterized by the fact that the means for axial withdrawal of the small piston (34) govern the means which display (30) the quantity of the dose. 10 - Endermic injector device (10) as in Claim 1 and in one or another of the Claims thereafter, characterized by the fact that the means which display (30) the quantity of the dose comprise in cooperation: - cam means (41) with ridge means (141), and - ring means (25) with notches (225) facing said ridge means (141) and cooperating therewith, said means (25) comprising numbered scale means (125), whereby the ring means (25) are periodically advanced (tripped) temporarily by steel wire means (58) solidly fixed to the withdrawal means and acting between said cam means (41) and said notches (225).
Claim 11
Dependent Claim
129 words
11 - Endermic injector device (10) as in Claim 1 and in one or another of the Claims thereafter, characterized by the fact that the means (60) to regulate the pre-loading of spring means (52) are obtained by means of the reciprocal axial adjustable position of the sleeve means (112) in relation to the central body (11), whereby there are advantageously visible reference means (56) and disconnectable means (211-212) for 1 I temporary fixture of the determined reciprocal axial position. 12 - Endermic injector device (10) as in Claim 1 and in one or another of the Claims thereafter, characterized by the fact that the injecting end (12) can be disconnected from the sleeve means (112) for sterilization, such temporary connection being obtained advantageously with bayonet fitting means (319).
Claim 12
Dependent Claim
49 words
13 - Endermic injector device (10) as in Claim 1 and in one or another of the Claims thereafter, characterized by the fact that the small piston (34) comprises momentary anchorage means having an elastic ring (234) cooperating with circumferential seating means (53) located in the plunger means (35).
Claim 13
Dependent Claim
50 words
14 - Endermic injector device (10) as in Claim 1 and in one or another of the Claims thereafter, characterized by the fact that the initial relative play in aspiration as between the elastic ring means (234) and -circumferential seating means (53) is shown visually on the ring means (25).
References Cited (Backward Citations)
No citation records indexed.
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