Systems and methods for automatic medical injection with safeguard
First Claim
1. A medical injection system, comprising:
- a needle guard, comprising;
a cartridge housing coupled with a release mechanism and configured to house a pre-filled medical cartridge comprising a needle located on a distal end, a plunger and a carrier configured to carry a dose;
a shield having an open proximal end and an open distal end, the shield coupled with the cartridge housing and the release mechanism and configured to extend between a retracted and an extended position that substantially covers the needle when the cartridge is housed in the cartridge housing, wherein the release mechanism is configured to maintain the shield in the retracted position and allow the shield to extend upon engagement of the release mechanism; and
an automatic injection system configured to house the needle guard and the medical cartridge and configured to inject the dose when activated, the automatic injection system comprising;
a drive system configured to depress the plunger and engage the release mechanism when the automatic injection system is activated; and
an activation system configured to activate the automatic injection system;
wherein the needle guard is removable from the automatic injection system with the shield in the extended position after injection of the dose.
1 Assignment
0 Petitions
Accused Products
Abstract
A medical injection system includes a needle guard and an automatic injection system. The needle guard has a cartridge housing coupled with a release mechanism and configured to house a medical cartridge having a needle, a plunger and a carrier configured to carry the dose. Coupled with the cartridge housing and the release mechanism is a shield that is extendable between a retracted and an extended position that substantially covers the needle. The release mechanism is engageable and configured to maintain the shield in the retracted position and allow the shield to extend upon engagement. The automatic injection system can be configured to house the needle guard and configured to inject the dose when activated.
127 Citations
24 Claims
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1. A medical injection system, comprising:
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a needle guard, comprising; a cartridge housing coupled with a release mechanism and configured to house a pre-filled medical cartridge comprising a needle located on a distal end, a plunger and a carrier configured to carry a dose; a shield having an open proximal end and an open distal end, the shield coupled with the cartridge housing and the release mechanism and configured to extend between a retracted and an extended position that substantially covers the needle when the cartridge is housed in the cartridge housing, wherein the release mechanism is configured to maintain the shield in the retracted position and allow the shield to extend upon engagement of the release mechanism; and an automatic injection system configured to house the needle guard and the medical cartridge and configured to inject the dose when activated, the automatic injection system comprising; a drive system configured to depress the plunger and engage the release mechanism when the automatic injection system is activated; and an activation system configured to activate the automatic injection system; wherein the needle guard is removable from the automatic injection system with the shield in the extended position after injection of the dose. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A medical injection system, comprising:
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a needle guard, comprising; a cartridge housing coupled with a release mechanism and configured to house a pre-filled medical cartridge comprising a needle located on a distal end, a plunger and a carrier configured to carry a dose; a shield having an open proximal end and an open distal end, the shield coupled with the cartridge housing and the release mechanism and configured to extend between a retracted and an extended position that substantially covers the needle when the cartridge is housed in the cartridge housing, wherein the release mechanism is configured to maintain the shield in the retracted position and allow the shield to extend upon engagement of the release mechanism, and wherein the release mechanism comprises a first cooperating catch formed in the shield and a second cooperating catch formed in the cartridge housing, wherein the cooperating catches are configured to engage one another when the shield is in the retracted position and to disengage one another when the release mechanism is engaged when the shield is in the retracted position; and an automatic injection system configured to house the needle guard and the medical cartridge and configured to inject the dose when activated, the automatic injection system comprising; a drive system configured to depress the plunger and engage the release mechanism when the automatic injection system is activated; and an activation system configured to activate the automatic injection system; wherein the needle guard is removable from the automatic injection system with the shield in the extended position after injection of the dose. - View Dependent Claims (23, 24)
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Specification