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Sheath remover device

A remover and sheath technology, applied in infusion sets, syringes, ampoule syringes, etc., can solve problems such as uneconomical

Inactive Publication Date: 2012-10-17
OWEN MUMFORD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is possible to provide a prefilled syringe with both a needle shield attached and a needle remover attached to the shield, but this means that the needle shield remover must be supplied with each syringe , which is uneconomical

Method used

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Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0034] See originally Figure 1-4 , the injection device 10 described here has separable rear and front housing parts 12 and 14, respectively. A rotationally adjustable penetration depth adjuster 16 is mounted at the front end of the front housing part 14 . A sheath remover 18 is shown inserted into the front end of the device, here as a temporary shield.

[0035] See especially Figure 4 , the sheath remover 18 has a sheath capture area 20 which in this example has six latch fingers 22 each with an inward lock 24 . Sheath remover 18, on the other hand, has a flared end 26 that facilitates grasping while also providing a support surface for wrenching the syringe. At about the midsection of the sheath remover there are two diametrically opposed shoulder projections 28 defining respective diametrically opposed slots 30 therebetween. The body of the sheath remover is an open ended tubular shape and adjoins each rear end of the slot as Figure 4 As shown in , the cylindrical ...

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PUM

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Abstract

A sheath remover device (18) is of elongate tubular form having a sheath capture region (20) at one end and a passage along which a captured sheath may pass from the capture region. A plurality of latching fingers (22) each with an internally directed latch (24) are equi-spaced in the capture region. Two further inwardly directed latches are provided on the cut out regions (32). The sheath remover is designed so that, a sheath already disposed in the sheath capture region is pushed along the passage away from the sheath capture region when the remover is offered up to and engages the subsequent sheath. The spacing of the latches (24) and (34) is such that the earlier sheath is not released from latches (34) until the latches (24) have securely engaged in the subsequent sheath, thereby providing an indication of secure engagement of the subsequent sheath. The sheath remover may also be used as a cap and / or a cocking rod.

Description

technical field [0001] The invention relates to a sheath remover device for removing a sheath from a syringe needle located within a housing of an injection device, and to such an injection device. Background technique [0002] In many reusable injection devices, the drug is prefilled into a syringe with an attached needle covered by a needle guard (sometimes called a boot). Needle guards keep needles sterile while also preventing needlestick injuries. For safety purposes, the needle shield is usually very tightly attached to the needle and ideally is not removed until the prefilled syringe is securely positioned within the injection housing (in addition, the injection housing also covers the needle) Needle sheath. With a given sheath-to-needle connection force, it is important to have a reliable method of removing the needle sheath. As already pointed out, the syringe and needle shield are typically contained within the housing, which means that the shield is (deliberate...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61M5/32
CPCA61M2005/2407A61M5/46A61M5/3146A61M5/24A61M5/3213A61M5/3204A61M5/3202
Inventor 亚历克斯·爱丁顿克里斯多佛·威廉·哈德森
Owner OWEN MUMFORD