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Automatic injection device

A technology for automatic injection and syringes, applied in the direction of automatic injectors, syringes, hypodermic injection equipment, etc.

Pending Publication Date: 2022-05-20
OWEN MUMFORD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, manually priming an automatic injection device with a strong drive spring can be challenging if the force required to prime the automatic injection device is too high for the average user of the automatic injection device

Method used

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  • Automatic injection device
  • Automatic injection device
  • Automatic injection device

Examples

Experimental program
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Embodiment Construction

[0037] Generally, disclosed herein are exemplary methods and apparatus for use in automatic injection devices. The term "autoinjector" is used herein and may properly be considered to include both autoinjectors and safety autoinjectors. Automatic injection devices may be configured to receive and operate standard syringes (ie, not safety syringes) and / or safety syringes.

[0038] In the following examples, the terms "forward" and "front" refer to the patient-facing end of the injection device or components thereof. In other words, the front end of the injection device is the end that is close to the injection site during use. Likewise, the term "rear" refers to the non-patient end of the injection device assembly or components thereof. In other words, the term "rear" means at a distance from or away from the injection site during use. Furthermore, the term longitudinal is used to encompass directions along or parallel to the longitudinal axis of the injection device.

[00...

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PUM

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Abstract

An automatic injection device for receiving and operating a syringe, the automatic injection device comprising a housing for receiving a syringe. The housing includes a main body and a door operable between a first position and a second position. The syringe can be received within the housing when the door is in the first position. The automatic injection device includes at least one biasing device configured to bias the door from the first position toward the second position, or from the second position toward the first position. The automatic injection device includes a plunger driver configured to drive a plunger within the automatic injection device forward to operate a syringe received within the automatic injection device upon actuation of the automatic injection device, the plunger driver further configured to be pre-activated when a door is moved in a direction in which the door is biased by a bias.

Description

technical field [0001] The present invention relates to automatic injection devices for use with syringes. The present invention may relate to, but is not necessarily limited to, safety autoinjectors and / or autoinjectors for use with safety syringes. Background technique [0002] Safety syringes typically include some form of safety mechanism to protect healthcare personnel from the hypodermic needle of the syringe after the syringe has been injected into the patient. Exemplary safety syringes may include a sheath to cover the needle after the syringe has been used. Other exemplary syringes may have the needle retracted within the barrel of the syringe. [0003] Safety syringes can be broadly classified as "active" and "passive" safety syringes. Active safety syringes typically require some action by the user of the syringe to engage the safety mechanism and / or deploy the sheath. Such action may be performed after the needle is removed from the patient, or may be perform...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/20A61M5/31
CPCA61M5/2033A61M5/3129A61M2005/206A61M2205/586A61M2005/208A61M2005/202A61M2005/314
Inventor 布伦特·大卫
Owner OWEN MUMFORD