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Device for automatically injecting liquid

An automatic injection and injection technology, applied in the direction of automatic injectors, syringes, ampoule syringes, etc., can solve the problems of blocking injection needles, hindering the rapid introduction of injections, and not fully meeting actual requirements

Active Publication Date: 2009-06-10
药品咨询有限责任两合公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this known design is that the ruptured membrane blocks the injection needle and prevents the quick release of the injection
[0005] However, the above-mentioned known autoinjectors can only insufficiently meet the actual requirements, such as those stipulated for use in the military field

Method used

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  • Device for automatically injecting liquid
  • Device for automatically injecting liquid
  • Device for automatically injecting liquid

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0014] FIG. 1 shows an injection device 1 , the housing of which is segmented in the axial direction. The first housing part 2 encloses the actuator part and the second housing part 3 encloses the syringe part of the injection device according to the invention, wherein the two housing parts can be connected by means of a screw thread 4 . exist figure 2 The actuator part shown in detail in includes a pressure bolt 5 which is axially displaceable in the housing 2 and which can be pushed in against a spring 6 . The pressure screw 5 has an inwardly elastic locking shoulder 7 which forms the conical end of the pressure screw 5 . In the locked position, a pin 9 of the cover 8 holds the locking shoulder 7 in a radially outwardly offset position, so that the locking shoulder 7 engages the ring part 10 . After the top cover 8 has been pulled off, the actuator can be partially released. For this reason, the protective sleeve 11 is operated in the direction of the arrow 12, so that the...

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PUM

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Abstract

An automatic injection device (1) with an axially segmented housing, the segments of which can be connected to one another, wherein in a first housing part (2) an axially displaceable pressure screw (5) is guided In the second housing part (3), the injection needle (15) and the ampoule (13) fixed on the needle guide (14) are arranged, and the injection needle and the ampoule can move axially relative to each other, wherein the injection The needle (15) is configured as a piercer (32) for the ampoule (13) on its side towards the ampoule (13), and the ampoule (13) is inserted into the second end fixed to the injection needle (15) with it. The housing part (3) is supported in a sleeve (16) whose inner diameter corresponds substantially to the outer diameter of the ampoule (13). A radially inwardly protruding protrusion (17) is formed on the inner circumference of the sleeve body (16), and the sleeve body (16) has a locking piece that cooperates with the locking piece (20) of the needle guide (14), Wherein, the axial movement of the ampoule (13) towards the needle guide (14) causes the release of the lock (20) and the release of the needle guide (14) against the movement resistance exerted by the protrusion (17). release of axial mobility.

Description

technical field [0001] The invention relates to a device for the automatic injection of injection fluids, which has an axially segmented housing, the segments of which can be connected to each other, wherein an axially axially movable movable pressure bolt, which can be pushed in against the accumulator and can be locked in the pushed-in position, and can be moved out when the accumulator is unloaded; Injection needle and an ampoule in the needle guide, which can be moved axially relative to each other, wherein the injection needle is formed on its side facing the ampoule as a piercer for the ampoule. Background technique [0002] Devices of the type mentioned at the outset are widely known by the name of autoinjectors. Known devices of this type are devices which, in the event of an emergency, make it easier to inject emergency medication into the body. Auto-injectors are used eg in allergic emergencies such as insect stings, snake bites etc., but also in the military fie...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61M5/20A61M5/24A61M5/31A61M5/32
CPCA61M5/3287A61M2005/3118A61M5/2033A61M5/2466A61M2005/2073A61M2005/2418A61M2005/206
Inventor E·皮克哈德
Owner 药品咨询有限责任两合公司
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