NZ222839A
Expired / Lapsed
NZ
⏱️ 0.0 years remaining
Appliance for subcutaneous or intradermal injection of a liquid formulation
Assignee: Hoffmann La Roche
•
Filing: 1987-12-08
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Granted: —
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Expires: 2007-12-08
Abstract
Abstract The portable appliance is of use for the subcutaneous or intradermal injection of a liquid formulation of an active principle and it comprises in combination: a supply vessel for the formulation; an injection needle adapted to communicate with the vessel; pump means for emptying the vessel through the injection needle; securing means for securing the appliance to an appropriate part of the patient's body; and needle-driving means for shooting the injection needle into the patient's skin.
Inventors
- 👤 Giorgio Cirelli
- 👤 Hans Steffen
- 👤 Christian Surber
Bibliographic Details
Application Number
—
Jurisdiction
NZ
Data Source
google_patents
Last Synchronized
2026-11-07 16:10
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/178; A61M5/14; A61M5/142; A61M5/145; A61M5/14586; A61M5/14593; A61M5/14244; A61M5/14248; A61M2005/14204; A61M2005/14252; A61M2005/14264; A61M2005/14268; A61M5/168; A61M5/16877; A61M5/16881; Y; Y10; Y10S; Y10S128/00; Y10S128/12
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
82 words
A portable appliance for the subcutaneous or intradermal injection of a liquid formulation of an active principle, characterised by a combination comprising: a supply vessel for the formulation; an injection needle adapted to communicate with the vessel;pump means for emptying the vessel through the injection needle; securing means for securing the appliance to an appropriate part of the patient's body; and needle-driving means for shooting the injection needle into the patient's skin and bringing the injection needle into communication with the vessel.<br><br>
Claim 2
Dependent Claim
82 words
A portable appliance for the subcutaneous or intradermal injection of a liquid formulation of an active principle, characterised by a combination comprising: a supply vessel for the formulation; an injection needle adapted to communicate with the vessel;pump means for emptying the vessel through the injection needle; securing means for securing the appliance to an appropriate part of the patient's body; and needle-driving means for shooting the injection needle into the patient's skin and bringing the injection needle into communication with the vessel.<br><br>
Claim 3
Dependent Claim
14 words
An appliance according to claim 1,. including flow control means in the supply vessel.<br><br>
Claim 4
Dependent Claim
27 words
An appliance according to claim 1, characterised in that the appliance is in two parts, one of which is reusable and the other of which is discardable.<br><br>
Claim 5
Dependent Claim
27 words
An appliance according to claim 3, characterised in that the discardable part comprises the supply vessel and the reusable part comprises means for driving the pump means.<br><br>
Claim 6
Dependent Claim
28 words
An appliance according to claim 1, characterised in that the supply vessel is a chamber in the appliance, the chamber being separated into two chambers by a diaphragm.<br><br>
Claim 7
Dependent Claim
18 words
An appliance according to claim 1, characterised in that the supply vessel is in the form of bellows.<br><br>
Claim 8
Dependent Claim
20 words
An appliance according to claim 1, characterised in that the supply vessel is in the form of a squeezable hose.<br><br>
Claim 9
Dependent Claim
39 words
An appliance according to claim 1, characterised in that the supply vessel is in the form of a plunger syringe<br><br> /'<h<br><br> P - "I<br><br> | 2 8 JAN I £1<br><br> 222839<br><br> 14<br><br> whose cylinder is operative as supply vessel.<br><br>
Claim 10
Dependent Claim
27 words
An appliance according to any one of claims 6-9, characterised in that an absorbent material is provided in the supply vessel to take up the active principle.<br><br>
Claim 11
Dependent Claim
16 words
An appliance according to claim 1, characterised in that more than one supply vessel is provided.<br><br>
Claim 12
Dependent Claim
33 words
An appliance according to claim 1, characterised in that the pump means comprise a chamber which is separated from the supply vessel by a resilient diaphragm -and in which pressure-producing means are provided.<br><br>
Claim 13
Dependent Claim
16 words
An appliance according to claim 11, characterised in that the chamber is filled with propellant vapour.<br><br>
Claim 14
Dependent Claim
22 words
An appliance according to claim 11, characterised in that an electrochemical, photochemical or chemical pressure producing system is provided in the chamber.<br><br>
Claim 15
Dependent Claim
19 words
An appliance according to claim 11, characterised in that an osmosis or electro-osmosis system is provided in the chamber.<br><br>
Claim 16
Dependent Claim
16 words
An appliance according to claim 1, characterised in that the pump means comprise a mechanical drive.<br><br>
Claim 17
Dependent Claim
25 words
An appliance according to claim 15, characterised in that the mechanical drive comprises a spring, a bimetallic element, a memory alloy or a clockwork drive.<br><br>
Claim 18
Dependent Claim
18 words
An appliance according to claim 1, characterised in that the pump means comprise an electric or magnetic drive.<br><br>
Claim 19
Dependent Claim
35 words
An appliance according to claim 17, wherein the electric or magnetic drive comprises an electric " ' " 'iragm pump or<br><br> 2p9o *?<br><br> <-Kj<br><br> 15<br><br> O<br><br> piezoelectric pump or electric clock drive or an electromagnet.<br><br>
Claim 20
Dependent Claim
20 words
An appliance according to claim 1, characterised in that the securing means are in the form of an adhesive layer.<br><br>
Claim 21
Dependent Claim
15 words
An appliance according to claim 1, characterised in that the securing means comprises a plaster.<br><br>
Claim 22
Dependent Claim
22 words
An appliance according to claim 19 or 20, characterised in that the securing means comprises an adhesive layer containing a local anesthetic.<br><br>
Claim 23
Dependent Claim
18 words
An appliance according to claim 1, characterised in that the needle has a diameter of < 0.5 mm.<br><br>
Claim 24
Dependent Claim
26 words
An appliance according to claim 1, characterised in that the needle-driving means are combined with a valve controlling communication between the supply vessel and the needle.<br><br>
Claim 25
Dependent Claim
22 words
An appliance according to claim 16, characterised in that only a fraction of the spring deflection of a driving spring is used.<br><br>
Claim 26
Dependent Claim
31 words
An appliance according to claim 1, characterised in that electronic control means for controlling the pump means are provided the control means having a data memory for a programmed release profile.<br><br>
Claim 27
Dependent Claim
31 words
An appliance according to claim 1, characterised in that the vessel is formed with apertures which are closed by a partition and through which the vessel is filled shortly before use.<br><br>
Claim 28
Dependent Claim
27 words
An appliance according to claim 25, characterised in that electronic control means includes sensors to control or vary the release rate of the liquid formulation.<br><br> </p> </div>
References Cited (Backward Citations)
No citation records indexed.
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