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Injection syringe

A technology for a syringe and a filter cover, applied in the field of syringes, can solve problems such as insufficient sealing and coverage, and achieve the effect of simple manufacturing

Inactive Publication Date: 2011-01-05
PHARMA CONSULT GMBH & CO NFG KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this type of syringe is that the needle is permanently connected to the injection barrel and it cannot be adequately sealed re-covered by the jaws after injection

Method used

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  • Injection syringe
  • Injection syringe
  • Injection syringe

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] according to figure 1 , the syringe has an injection barrel 7, an assembly is provided on its proximal end, the assembly includes a sealing insert 1, a guide sleeve 2 fixedly connected with the sealing insert, the guide sleeve has a slidable The needle holder 3, the needle 4 and the rotatably movable transmission member 5 are arranged therein. The proximal end of the assembled syringe is closed with a protective cap 6, which is hermetically fitted on the injection barrel 7 through a sealing ring 6c. At the distal end of the syringe 7 is arranged an assembly comprising a syringe plug 8 with a coupling part 9 and a piston rod 10 inserted therein.

[0030] image 3 The assembled and disassembled syringe is shown, which contains a liquid medicament 11 in the injection barrel 7 . The protective cap 6 is still immobile and the needle 4 is not yet connected to the syringe. The coupling piece 9 is inserted into a blind hole 8a with a bottom 8b.

[0031] exist Figure 4 In...

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PUM

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Abstract

An injection syringe, comprising a syringe cylinder, a plunger rod that is inserted therein and connected to a stopper by way of a coupling part, and a module that is provided in the proximal end of the syringe cylinder and comprises a cannula (4), which is mounted in a cannula holder (3) received in a guiding sleeve, and further a sealing insert (1) for the fluid-tight closure of the proximal end of the syringe cylinder and a protective cap for protecting the cannula (4), wherein the protective cap on the inner circumference has ribs extending in the axial direction, which engage in corresponding grooves of the driving part (5) for a rotary drive thereof, and wherein in the sealing insert (1) a hollow space is formed, which is closed on the proximal side and on the distal side transitions into an opening, by way of which a tip of the coupling part can be coupled to the hollow space.

Description

technical field [0001] The invention relates to a syringe comprising a syringe, a piston rod inserted into the syringe connected to a bung via a coupling and an assembly arranged in the proximal end of the syringe, the assembly There is a needle installed in a needle seat and a sealing insert for fluid-tightly closing the proximal end of the injection barrel, the needle is accommodated in a guide sleeve, and the syringe includes a The protective cover, wherein the protective cover has ribs extending in the axial direction on the inner circumference, these ribs are embedded in corresponding grooves of the guide sleeve for rotationally driving the guide sleeve. Background technique [0002] In the present description, the directions "mesial" and "distal" are determined from the perspective of the patient. A syringe is known from WO 03 / 057289 A1 with an undisturbed closure, ie with a protective cap which can only be removed by rotation and which connects the needle to the inje...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/32
CPCA61M5/3202A61M5/322A61M2005/3104A61M2005/5073A61M2005/3103A61M5/3145A61M5/288A61M2005/323
Inventor 布丽吉特·皮克哈德
Owner PHARMA CONSULT GMBH & CO NFG KG