DE8618164U1 - Instrument for the injection of silicone prostheses - Google Patents

Description

The innovation relates to an instrument for injecting Si-1ikon prostheses.

Breast prostheses, which essentially consist of a silicone-coated silicone gel, are known. So far it has been customary to implant these breast prostheses through an incision in the breast area. The resulting scarring is often perceived as a nuisance. In addition, displacements of the implanted prosthesis can occur.

The innovation is based on the task of providing an instrument with which a silicone prosthesis injected into the mammary area without annoying scarring can be.

This object is achieved by an instrument for injecting silicone prostheses, which is characterized according to the innovation is through the features of claim 1.

Postgiroamt: Karlsrufie 76979-75V Blnkkönfo: Deutsche Bank AG Villingen (BLZ 69470039) 146332

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Advantageous embodiments of the innovation are in the subclaims specified «

When using the instrument according to the innovation, a small incision is made at the armpit level, where scarring is formed is not perceived as annoying. This incision creates a space for the Siliköh prosthesis in the Mammary area prepared under the pectoral muscle. A commercially available Silicone prosthesis of suitable size is made through the incision in the armpit by means of the renovation Instrument introduced into the prepared recording room.

The deformable silicone prosthesis, like the inner walls of the cylinder and the reducing funnel, is fitted with a Special oil made lubricious. The prosthesis is pushed into the cylinder from the open proximal end. Afterward the piston is inserted into the cylinder. The cylindrical end section of the reducing funnel is inserted into the prepared The incision is pushed in and the prosthesis is pushed through the reducing funnel into the Introduced prepared recording space.

Preferably, the reducing funnel is releasably attached to the cylinder so that reducing funnels with different outlet end diameters can be used optionally can be. Reduction funnels with inner diameters of the cylindrical outlet end of 17 and 20 have been found mm proven.

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around the prosthesis reliably in the one leading to the receiving room To introduce the prepared canal, the reducing funnel preferably has a cylindrical one at its outlet end End portion, the axial length of which is about 15 to 25 mm. This cylindrical Enäabschnitt is in the axillary incision inserted.

It is useful to form the proximal end of the piston with a cross section that corresponds to the inner cross section of the cylindrical Corresponds to the end section of the reducing funnel. In itself, the silicone prosthesis is supported by the air cushion, which forms between the piston and the prosthesis, fully pressed into the prepared incision * In exceptional cases, the end of the prosthesis should not be fully pushed out of the reducing funnel the piston can be turned over to completely remove the prosthesis from the cylindrical end section of the reducing funnel to push out.

In the following, the innovation is explained in more detail with reference to an embodiment shown in the drawing. The only figure shows an axial section through the InThe instrument consists of a straight line that is open at both ends Cylinder 10 with a circular cross-section. The cylinder 10 has an inside diameter of approximately 40 to 60 mm, preferably from 45 mm. The axial length of the cylinder 10 is approximately 150 mm. With these dimensions the cylinder 10 has a volume that is used to accommodate the

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Chen silicone breast prostheses is suitable.

On the front distal end of the cylinder 10 is a reducing funnel 12 put on. The reducing funnel 12 is internally threaded onto an externally threaded distal end of the cylinder 10 is screwed on, narrows in a funnel shape and has a straight cylindrical shape at its outlet end End section 14 on. The end section 14 has an axial length of approximately 15 to 25 mm, preferably 17 mm. There come Depending on the size of the prosthesis, there is a choice of reducing funnels with different inside diameters of the cylindrical one End section 14 for use. The inside diameter can vary in the range from approx. 15 to 25 mm. Have proven inside diameters of 17 mm and 20 mm.

A piston 16, which has a front piston section 18, the diameter of which is pushed into the cylinder 10 corresponds to the inner diameter of the cylinder 10, so that the piston sealingly with this piston section 18 in the cylinder 10 is displaceable.

At its opposite rear end, the piston 16 has a piston section 20, the diameter of which corresponds to the inner diameter of the cylindrical end portion 14 of the reducing funnel 12 corresponds. The piston 16 is opposite If the arrangement shown in the drawing is reversed, the piston section 20 can extend into the cylindrical end section 14 of the reducing funnel 12 can be pushed.

Claims (9)

1. Instrument for the injection of silicone prostheses, characterized by an open at its proximal end Cylinder (10), through a reducing funnel (12) attached to the distal end of the cylinder (10) and through a piston (16) displaceable in <? ^ m cylinder (10) with a piston section (18), the diameter of which corresponds to the inner diameter of the cylinder (10). 2. Instrument according to claim 1, characterized in that the reducing funnel (12) releasably on the cylinder (10) is attached. 3. Instrument according to claim 2, characterized in that the reducing funnel (12) can be screwed onto the cylinder (10) is. 4. Instrument according to one of the preceding claims, characterized in that the piston (16) at his proximal end has a piston portion (20) with a diameter which is the inner diameter of the outlet end (14) of the reducing funnel (12) corresponds. ■ ** ■ ψ ψ P. Ψ Ψ Ψ Postgiroamt: Karlsruhe 769Ύ9-7 & BanVkonio: Deutsche Bank AG Villingen (BLZ 6947ÖÖ39) 146332 5. Instrument according to one of the preceding claims, characterized in that the reducing funnel (12) on its outlet end has a cylindrical end portion (14). 6. Instrument according to claim 5, characterized in that the cylindrical end portion (14) has an axial length of approx. 15 to 25 mm. 7. Instrument according to claim 5 or 6, characterized in that the cylindrical end portion e ^ NEN inner diameter of approx. 15 to 25 mm. 8. Instrument according to one of the preceding claims, characterized in that the cylinder (10) has an inner diameter from approx. 40 to 60 mm. 9. Instrument according to one of the preceding claims, characterized in that the cylinder (10) has an axial Length of <: a. 150 mm.