DE3222795A1 - Extractor - Google Patents

Abstract

A device for the extraction of intrauterine pessaries comprises a guide tube having a two-finger handle and a pushrod inside the guide tube, which pushrod has at its top end a cylindrically hollow thumb knob for reception of a pressure spring and which has at its bottom end a hook bundle comprising three to six small hooks which spread outwards and bend inwards. <IMAGE>

Description

The invention relates to the subject matter of the claim.

Extractors of various types have long been the tools of the trade practicing doctor. Depending on the intended purpose, these extractors have different things Appearance. So from the gynecological practice is an extractor for removing intra-uterine applied pessaries known, in which an applicator tube Pincer-shaped tip is led out, which opens by spring force and closes again when it is returned to the applicator tube.

However, the known device has the disadvantage that the two pliers-shaped Spikes only conditionally allow the pessary to be grasped. This has the consequence that the extraction becomes a lengthy manipulation that requires a great deal of tact of the user and a greater risk of complication such as infection or perforation.

The object of the present invention was to provide an applicator, which makes it possible to remove pessaries applied intrauterine in a simple manner.

The object of the invention is achieved by the characterizing part of the claim characterized device solved.

The extractor according to the invention is used as a special embodiment with four hooks (6) in the hook bundle at the end of the push rod (3) in the figure. Schematically there- posed. The device shown in the figure corresponds not in all parts of the original size.

The extractor consists of two parts, namely the applicator or Guide tube (1) and the push rod (3) with a hook head or bundle at the bottom End.

The guide tube (1) is at its upper end with a two-finger handle (2) Equipped for better handling. Above the handle (2) is a second one Put on the tube (7) which receives the spring (5), the spring (5) on the Upper channel of the guide tube (1) touches down. The guide tube (1) is at its lower Rounded ends on both the inside and outside. The outer rounding makes the extractor more physiologically compatible and the inner rounding makes the hook head lighter slide back into the guide tube.

The push rod (3) is at its upper end with a thumb button (4), which is hollow towards the inside and to accommodate the compression spring (5) serves and is over the tube (7). At the lower end of the push rod (3) sits a Hook head. The hooks (6) of the hook head have a 10-20 mm long neck and a approx. 1 mm long, inwardly curved end. For better guidance of the push rod (3) In the guide tube (1) there is a cylindrical one above the hook head Sheath (8) in which the bundle of hooks is attached. The hook bundle can be attached to the Push rod (3), e.g. with silver solder, soldered on or with a plastic such as epoxy resin, to be appropriate. The bundle of hooks is spread outside the guide tube (1), the spatial opening angle between the four hooks (6) 20-35, preferably 25-30 0.

The device according to the invention is not based on a bundle of hooks limited to four liaks (6). Devices with 3, 5 or 6 hooks are also possible.

When using the extractor according to the invention, the push rod (3) inserted into the guide tube (1) and introduced into the cavum uteri. The user felt with the tip of the guide tube (1), whereby the hook (6) is inside of the guide tube (1) are the pessary to be extracted. He then presses the Push rod (3) through, whereby the hook head opens with the hooks (6) and the lying pessary by releasing the thumb pressure on the button (4) or closing it of the hook head and can then be pulled out of it.

The extractor according to the invention preferably consists of a material that is easy to sterilize.

It is advisable to use stainless steel for the hook head and for the spring (5) is spring steel, while the other parts such as the thumb button (4) and the handle (2) can also consist of plastic.

Claims (1)

Claim device for the extraction of intra-uterine applied Pessaries consisting of a guide tube (1) with an outside diameter of 3-5 mm and a length of 20-30 cm, at one end of which a tube (7) is attached, that extends to the two-finger handle (2) and a push rod (3) inside of the guide tube (1), which has a cylindrical hollow thumb button (4) at the head end for receiving a compression spring (5), the outer diameter of which is approximately the same like the inner diameter of the tube (7), and that at the foot end three to six, preferably has four outwardly spreading and inwardly curved hooks (6) through a jacket tube (8) are attached to the push rod (3).