Injector
First Claim
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1. An injector for delivering a liquid medicament comprising:
- a collapsible container for containing the liquid medicament, a normally-closed valve coupled to the collapsible container for retaining the liquid medicament within the collapsible container;
an injection means coupled to the normally-closed valve for delivering the liquid medicament from the collapsible container;
pressurising means for maintaining the liquid medicament contained within the collapsible container under pressure during storage before actuation of the injector, such that the liquid medicament is delivered by the injection means when the normally-closed valve is opened; and
an actuator for opening the normally-closed valve, in which the normally-closed valve opens in response to the actuator being pressed against a patient'"'"'s skin;
wherein, when the normally-closed valve is opened, the liquid medicament is delivered by the injection means due to the pressure from the pressurising means.
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Accused Products
Abstract
An injector for delivering medicament comprises a collapsible container (1002) for containing the liquid medicament, a normally-closed valve (1004) coupled to the collapsible container (1002) for retaining the liquid medicament within the collapsible container and an injection means (1006) for delivering the liquid medicament from the collapsible container. The liquid medicament is maintained under pressure by a pressurizing means (1003) which pressurizes the liquid medicament such that it is delivered by the injection means (1006) when the normally-closed valve (1004) is opened.
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Citations
45 Claims
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1. An injector for delivering a liquid medicament comprising:
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a collapsible container for containing the liquid medicament, a normally-closed valve coupled to the collapsible container for retaining the liquid medicament within the collapsible container; an injection means coupled to the normally-closed valve for delivering the liquid medicament from the collapsible container; pressurising means for maintaining the liquid medicament contained within the collapsible container under pressure during storage before actuation of the injector, such that the liquid medicament is delivered by the injection means when the normally-closed valve is opened; and an actuator for opening the normally-closed valve, in which the normally-closed valve opens in response to the actuator being pressed against a patient'"'"'s skin; wherein, when the normally-closed valve is opened, the liquid medicament is delivered by the injection means due to the pressure from the pressurising means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. An injector comprising:
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a collapsible container retaining a liquid medicament by a normally-closed valve; and a needle for injecting the liquid medicament coupled to the normally-closed valve; a force arranged for maintaining the liquid medicament retained within the collapsible container under pressure during storage before actuation of the injector, such that the liquid medicament is delivered through the needle when the normally-closed valve is opened; and an actuator for opening the normally-closed valve, in which the normally-closed valve opens in response to the actuator being pressed against a patient'"'"'s skin; wherein, when the normally-closed valve is opened, the liquid medicament is delivered by the needle due to the pressure from the force. - View Dependent Claims (29, 30, 31, 32, 33, 34, 35, 36)
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37. A method of injecting a liquid medicament, the liquid medicament being retained within a collapsible container of an injector by a normally-closed valve, the injector comprising an actuator for opening the normally-closed valve and a needle coupled to the normally-closed valve and used for injecting the liquid medicament, the actuator when pressed against a patient'"'"'s skin opening the normally-closed valve, the method comprising the steps of:
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positioning the needle of the injector to deliver the liquid medicament to a patient, whereby a force is arranged for maintaining the liquid medicament under pressure during storage before actuation of the injector, such that the liquid medicament is delivered through the needle when the normally-closed valve is opened; and pressing the actuator against skin of the patient, from which the normally-closed valve opens, whereby the liquid medicament is injected due to the pressure from the force. - View Dependent Claims (38, 39)
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40. A method of manufacturing an injector for delivering a liquid medicament comprising the steps of:
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coupling a normally-closed valve to a collapsible container for containing the liquid medicament; opening the normally-closed valve; filling the collapsible container with the liquid medicament through the normally-closed valve, thereby causing the collapsible container to expand and deflect a pressurising means; closing the normally-closed valve to retain the liquid medicament within the collapsible-container, the liquid medicament within the collapsible container being maintained under pressure during storage before actuation of the injector due to the pressurising means; and coupling the normally-closed valve to an injection means for delivering the liquid medicament from the collapsible container when the normally-closed valve is opened; wherein the injection means comprises an actuator for opening the normally-closed valve, the actuator when pressed against a patient'"'"'s skin opens the normally-closed valve, and when the normally-closed valve is opened, the liquid medicament is delivered by the injection means due to the pressure from the pressurising means. - View Dependent Claims (41, 42, 43, 44, 45)
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Specification