DE7805284U1 - Penile prosthesis - Google Patents

Description

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BLUMBACH. WESER. BERGEN · KRAMER ZWIRNER - HIRSCH · BREHM

PATENT LAWYERS IN MUNICH AND WIESBADEN

Patenlconsult Radedcestrafle 43 6000 Munich 60 Telephone (089) 883603/083604 Telex 05-212313 Telegrams Patenlconsult Patentconsult Sonnenberger Strafle 43 6200 Wiesbaden Telephone (06121) 502943/561998 Telex 04-186237 Telegrams Palentconsult Walter Koss oHG
P.O. Box 1147
Geisenheim

Penile prosthesis

The invention relates to a penile prosthesis in the form of an implantable one iind a flexible rod. Known prostheses of this type are used to treat impotence in neurological diseases, Vascular diseases, trauma, metabolic diseases and in other cases each in pairs in the erectile tissue implanted “They are made of elastic plastic with a relatively high flexural rigidity. To kink off To enable the erect position in which the penis is otherwise constantly, such rods are already in the the lower or middle third has been provided with a weak or bending point. As a result, on the one hand, an unintentional J

Kinks occur, on the other hand, in the resting position through the clothing pressure and tension conditions occur more disruptive Kind of a.

The invention has set itself the task of an improved To create penile prosthesis that allows a desired shape and position of the penis during sexual intercourse and at rest and shows no changes for a long time *

Mouths: R. Kramer DipL-Ing. · W. Weser Dipl .-? Hys. Dr. rer. naL - P. Hirsch DipU-lng. - H. P. Erehm Dipl.-Chem. Dr. ptiil. nat Wiesbaden: P.G. Blumbach DipL-Jng. - P.Bergen Dipl.-Ing. Dr. jur. · G.Zwirner DTpL-Ing. Dipl.-W.-Ing.

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To solve the problem, the invention is based on a penile prosthesis of the type mentioned at the beginning and is thus characterized

jjf ■ draws that the rod has a metallic core that

remains in a shape achieved by bending without springback and is enclosed in a shell made of implantable plastic

is bedded.

The metallic core ensures that the prosthesis can be bent into a desired shape and then does not spring back. The core must therefore consist of a material that does not spring back, i.e. is soft, or it must be constructed in such a way that that the elasticity is canceled. This can be done, for example, by tightly wrapping a rope made of elastic wires take place. In addition, the core and shell must be matched to one another in such a way that, on the one hand, the core provides the necessary Flexural rigidity is achieved and, on the other hand, the elastic rebounding of the shell by the non-rebounding core in the is substantially offset. This coordination as well as the adjustment of the length and the cross-section measurements of the The prosthesis to the anatomical conditions can be left to the specialist "

As a material for the core, the invention recommends in their further training the use of high purity silver or gold or a gold-silver alloy. In addition to the non-resilient bendability achieves good long-term flexural strength without the so-called hardening, which many

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I other metals occurs after being bent back and forth several times

J and leads to permanent induration.

jjjj To achieve an intimate connection between the core and

In the case of the shell, the core should have a surface that is as rugged as possible

I own into which the material of the shell to achieve a

I retention compound can partially penetrate. The

i Core made of a knitted fabric or knitted fabric of metal threads or also

I can be made from sheet metal strips. Preferably recommends

I the invention, however, that the core consists of several, with each other

% consists of twisted or twisted wires. Here you can

'i the wires form a loop at the front end and

I the ends of which are welded together. To achieve a

If the surface is as rugged as possible, the twist can be unreal
1 be designed in a regular manner. There can also be additional kinks,

I loops or breakthroughs are made.

I The bending resistance of the core does not need over the whole

I length to be the same size. Rather, after a further

I formation of the invention be provided that the bending resistance

Etand is different in sections. I can do this by using different wire thicknesses or by adding

additional individual wires can be realized.

Implantable plastic material for the shell, i.e. a material that is body-friendly and does not cause any reactions the body tissue and body fluids is released, is

780S284 27.67.71

p knows. For example, polyurethane can be used for this.

In particular, however, the invention recommends the use

of silicone elastomer.

In the drawing is an embodiment of a penis prosthesis shown according to the invention. The core 1 consists of ten silver wires with a diameter of 0.6 mm and one Fine silver content of 999.7. Such a material is pliable and remains soft even after many bending processes, so does not harden. To make the core 1, five silver wires are wrapped around a solid pin and then connected to each other twisted After pulling off the pin, a thickening in the form of a loop 2 is created at the front end. At the lower end At the end of 3, the wires that have just been cut are welded together.

The sheath 4, which completely surrounds the core 1, consists of an elastomeric silicone resin. The prosthesis can either through Insertion of the core in a mold together with the resin and subsequent curing or also produced in the extrusion process will.

Suitable length dimensions are, for example, 16 to 19 cm, although smaller and larger lengths are also possible. The outer diameter can for example be between 9 and 1Ί mm, with larger and smaller values as well

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as well as deviations from the round cross-section can be useful.

7805284 27.tr.7t

Claims (1)

BLUMBACH · WSSER .BERGEN · KRAMER ZWIRNER · HIRSCH · BREHM PATENT LAWYERS IN MÖNCHEN AND WIESBADEN Patentconsull Radeckestrasse 43 8000 Munich 60 Telephone (089) 883603/883604 Velex 05-212313 Telegrams Patentcoiisult Patentconsult Sonnenberger Strasse 43 6200 Wiesbaden Telephone (06121) 562943/561998 Telex 04-1E6 23? Telegram Patentconsult Walter Koss oHG
P.O. Box 1147
Geisenheim Protection claims 1. Penile prosthesis in the form of an implantable and flexible Staff, characterized in that the St ^ b has a metallic core (1) which in a shape obtained by bending without springback remains and is embedded in a sheath (4) made of implantable plastic. 2. Prosthesis according to claim 1,
characterized in that the core consists of high-purity silver, 3 prosthesis according to claim 1, characterized in that the core consists of gold. 4. Prosthesis according to claim 1, characterized by ^ that the core consists of a gold-silver alloy. Munich: R. Kramer Oipl.-Ing. · W. Weser Dipl.-Phys. Dr. rer. nal. · P. Hirsch Dipl.-Ing. · H. P. Brehm Dipl.-Chem. Dr. phil, nal. Wiesbaden: P.G. Blumbach Dipl.-Ing. · P. Bergen Dlpl.-Irtg. Dr. Jur.. G. Zwirner Dipl.-Ing. Dipl.-W.-Ing. 7805284 27.17.71 I 5 prosthesis according to one of Claims 1 to 4, I characterized by I · that the core (1) consists of several twisted together i or twisted wires. l; & \ 6. A prosthesis according to claim 5, I characterized by j \ that the wires (1) at the front end have a loop (2) \ and welded together at the other end (3) ■ are ,, j 7. Prosthesis according to claim 3 or 6, characterized, ; that the twist is irregular. 8. Prosthesis according to one of claims 1 to 7, characterized in that that the bending resistance of the core is different in sections. 9β prosthesis according to one of claims 1 to 8, characterized in that the sheath (4) consists of silicone elastomer. I 10. Prosthesis according to one of claims 1 to 9, characterized, 7805284 27.87.78 c tali I t t I t I · I <* that the sheath (4) over the front end (2) of the core (1) is extended beyond. 11. Prosthesis according to claim 1, characterized in that that the core (1) consists of a non-hardening material that is fatigue-free when bent. 78-284