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Safety injection device

A technology of an injection device and a safe position, applied in the field of medical injection systems, can solve the problems of non-insertion of injection needles, insertion of patients, waste of pharmaceutical compositions, etc.

Pending Publication Date: 2022-05-13
BECTON DICKINSON FRANCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the problem may arise that the injection step is triggered before the end of the needling step so that the injection needle may not be inserted into the patient or may be inserted to an inappropriate depth in the patient's skin
Such failed administration often results in wastage of valuable pharmaceutical composition and is inconvenient to the patient

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0050] The injection system of the invention is intended to administer a substance such as one or several parenteral pharmaceutical compositions with simplified handling by a user such as a medical caregiver or preferably by a patient.

[0051]Therefore, in the present application, the distal direction must be understood with reference to the injection direction of the medical injection device, and the proximal direction is the opposite direction, ie the direction towards the hand of the user, ie the medical caregiver or the patient. Furthermore, pharmaceutical compositions must be understood as meaning injectable pharmaceutical compositions of all kinds suitable for therapeutic, aesthetic, prophylactic or diagnostic applications.

[0052] refer to Figures 1 to 3 , shows an injection device according to a preferred example of the present invention. The injection device comprises a barrel 100 of a syringe ( image 3 ), which has an injection needle 101, a distal flange 102, ...

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PUM

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Abstract

An injection device for injecting a substance into a body, the injection device comprising: a cylinder (100) having the substance, a stopper (103) and an injection needle (101) slidably engaged inside the cylinder (100); the syringe (100) comprises a barrel (100), a stopper (103), a plunger rod (110) coupled to the stopper (103) and movable to inject the substance, a locking clip (150) fixed relative to the barrel (100) and having at least two jaws (151) engaged with the plunger rod (110) so as to prevent injection movement of the plunger rod (110) relative to the barrel (100), and a needle shield (130) configured to shield the plunger rod (110) from moving relative to the barrel (100). The needle shield (130) comprises a trigger portion (134), the needle shield (130) being configured for sliding engagement with respect to the injection needle (101), where the trigger portion (134) is configured to open the locking clip (150) when the needle shield (130) is moved from an initial position to a retracted position.

Description

technical field [0001] The present invention relates to a medical injection system for self-administration of substances or pharmaceutical compositions. Background technique [0002] Medical injection systems have been developed that allow self-administration of pharmaceutical compositions, so that patients suffering from incurable or chronic diseases can administer their own pharmaceutical compositions without the need for any medical personnel. Accordingly, these medical injection systems typically provide simplified handling, for example by combining several steps into a single distal movement. [0003] Such a medical injection system is typically positioned in a location where the injection needle intended to deliver the pharmaceutical composition is concealed or covered by the medical injection system and at least the following steps can be performed: [0004] The first step of acupuncture is to insert the injection needle into the patient's body, [0005] In the seco...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/20A61M5/315A61M5/32A61M5/46
CPCA61M5/20A61M5/3157A61M5/3245A61M5/326A61M5/46A61M2005/3267A61M2005/208A61M2005/31508A61M2005/3247A61M5/31571
Inventor B·泽勒G·贝内德
Owner BECTON DICKINSON FRANCE