DEVICES, SYSTEMS AND METHODS FOR MEDICAMENT DELIVERY
First Claim
1. An apparatus, comprising:
- a movable member configured to be disposed within a housing of a medical device, the movable member having a first end portion and second end portion, a portion of the first end portion configured to define a portion of a boundary of a gas chamber, the first end portion defining an opening configured to be in fluid communication between the gas chamber and an area outside the gas chamber, the second end portion configured to be coupled to a needle configured to deliver a medicament into a body; and
a valve coupled to the movable member, the valve configured to selectively allow fluid communication between the gas chamber and the area outside the gas chamber through the opening defined by the first end portion.
4 Assignments
0 Petitions
Accused Products
Abstract
An apparatus includes a movable member and a valve coupled to the movable member. The movable member is configured to be disposed within a housing of a medical device and has a first end portion and second end portion. A portion of the first end portion is configured to define a portion of a boundary of a gas chamber. The first end portion defines an opening configured to be in fluid communication between the gas chamber and an area outside the gas chamber. The second end portion is configured to be coupled to a needle configured to deliver a medicament into a body. The valve is configured to selectively allow fluid communication between the gas chamber and the area outside the gas chamber through the opening defined by the first end portion of the movable member.
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Citations
11 Claims
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1. An apparatus, comprising:
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a movable member configured to be disposed within a housing of a medical device, the movable member having a first end portion and second end portion, a portion of the first end portion configured to define a portion of a boundary of a gas chamber, the first end portion defining an opening configured to be in fluid communication between the gas chamber and an area outside the gas chamber, the second end portion configured to be coupled to a needle configured to deliver a medicament into a body; and a valve coupled to the movable member, the valve configured to selectively allow fluid communication between the gas chamber and the area outside the gas chamber through the opening defined by the first end portion. - View Dependent Claims (2, 3, 4, 5)
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6. A method, comprising:
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actuating an energy storage member of a medical injector to produce a force to move a needle from a first position to a second position, the needle coupled to a medicament container; moving, in response to the force, a first portion of a moveable member within the medicament container to expel a medicament from the medicament container via the needle; and engaging a release member with a second portion of the moveable member after at least a portion of the medicament has been expelled to release the force from at least one of the moveable member or the delivery member. - View Dependent Claims (7, 8)
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9. An apparatus, comprising:
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a housing; a medicament container disposed within the housing; a delivery member configured to be in fluid communication with the medicament container, the delivery member moveably disposed between a first position, in which the delivery member is disposed within the housing, and a second position, in which a portion of the delivery member extends from the housing; a retraction member configured to bias the delivery member towards the first position; a moveable member having a first portion and a second portion; and an energy storage member configured to produce a force to move the delivery member from the first position to the second position and to move the first portion of the moveable member within the medicament container to expel a medicament from the medicament container via the delivery member, the second portion of the moveable member configured to interface with a release member after at least a portion of the medicament has been expelled to release the force from at least one of the moveable member or the delivery member. - View Dependent Claims (10, 11)
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Specification