RU2268684C2 - Endoprosthesis for reconstructive-restorative plastic surgery - Google Patents

Abstract

FIELD: medicine, plastic surgery.

SUBSTANCE: the suggested endoprosthesis is designed out of polymeric bioinert material and has a membrane, its surface is designed with protrusions as inclined cone-shaped, sharpened flexible projections. Direction, location at ends and interval between projections are made to be different depending upon target indication of endoprosthesis. Excessive ends of protrusions above the surface according to indication correspond to 0.01 up to 5 mm. The innovation enables to provide strong fixation of endoprosthesis in a patient's body.

EFFECT: higher efficiency.

7 cl, 12 dwg

Description

Technical field

The invention relates to medicine and methods and methods for performing surgical and plastic operations. In particular, the invention relates to endoprostheses used in reconstructive plastic and aesthetic operations.

State of the art

Endoprostheses for reconstructive, plastic and aesthetic surgery are known (Y. Zoltan "Reconstruction of the female mammary gland. Publishing House of the Hungarian Academy of Sciences. 1989 N.M. Aleksandrov" Clinical operative maxillofacial surgery "," Medicine ", Moscow, 1985, pp. 94-95). Known endoprostheses are made of various polymeric and biological materials and contain shells whose general characteristics are strength, mesh, smooth, homogeneous or textured surface, density, bioinertness. After implantation in the area of the defect, endoprostheses should replace the defect, eliminate contour deformation and retain the postoperative result for a long time. All known mesh endoprostheses are usually carefully sutured to the edges of the defect and only after that they perform a supporting function. Applied mesh endoprostheses and plastic surgery on the mammary glands. Endoprostheses with a textured sheath surface are also used, for example, McGan implants for increasing mammoplasty.

The germination of depressions on the surface of such prostheses with connective tissue does not give stable fixation in the distant period. Over time, gravitational forces lead to the prosthesis sliding down, sagging mammary glands and worsening aesthetic results.

Similarly, postoperative aesthetic results deteriorate with rhinoplasty, when over time the tip of the nose slides off the silicone endoprosthesis and hangs over the lip.

Closest to the claimed technical solution is an endoprosthesis, the shell of which is made with a textured surface. The textured surface contains bumps between the threads that sprout connective tissue. But this is not enough for a long and lasting retention of the endoprosthesis in soft tissues.

We offer a new surface for endoprostheses, which allows you to fix not only the implant itself without the usual hemming to soft tissues, but also the soft tissues themselves.

Disclosure of invention

The problem is solved in that the endoprosthesis for reconstructive, plastic and aesthetic surgery from a polymer bioinert material contains a shell, the surface of which is made with protrusions in the form of inclined cone-shaped pointed at the ends of the flexible-elastic burrs, while the directivity, location, and the interval between the burrs are made different depending on the intended purpose of the endoprosthesis, and the excess of the ends of the protrusions above the surface is also corresponding to the purpose of the component t from 0.01 to 5 mm.

The basis of the present invention is the creation of a surgical endoprosthesis, the shell of which is firmly fixed in the body and keeps the prosthesis and the soft tissues themselves from movements that are created by body movements, as well as by gravitational influences on the body.

The problem is solved by the specified execution of the endoprosthesis shell.

It is advisable that the protrusions-burrs of the tape endoprosthesis were made on one side of the tape or on its two sides with the same orientation and staggered arrangement.

It is also advisable that the protrusions of the burrs were made on two sides and had the opposite direction from the middle of the endoprosthesis of a tape shape.

It is also possible to alternate the orientation of the burr ledges through each row.

Volumetric endoprostheses can be with different options for applying burr protrusions:

- with one-sided unidirectional burrs

- It is also possible to alternate the direction of the inclination of the protrusions of the burrs on each side.

Brief Description of the Drawings

In the future, the invention is illustrated by specific examples of its implementation and the accompanying drawings, in which:

Figure 1 - depicts a variant of the tape endoprosthesis with protrusions-burrs on one side.

Figure 2 - View of figure 1 in profile.

Figure 3 - depicts a variant of the tape endoprosthesis with protrusions-burrs on both sides.

Figure 4 - View of figure 3 in profile.

Figure 5 - Depicts a tape endoprosthesis with protrusions-burrs on both sides of the opposite direction from its middle.

6 is a view of figure 5 in profile.

7 - depicts a variant of the tape endoprosthesis with alternating orientation of the protrusions of the burrs through each row on both sides of it.

Fig. 8 is a profile view of Fig. 7.

Fig.9 - Depicts a volumetric endoprosthesis with one-sided unidirectional protrusions-burrs over its entire surface.

Figure 10 - Depicts a volumetric endoprosthesis with alternating directionality of the inclination of the protrusions of the burrs on each side.

11 - Schematically depicts a surgical operation to correct the nasal dorsum.

Fig - Depicts a surgical operation for the correction of the nasal bridge with a variant of the endoprosthesis with multidirectional protrusions-burrs applied to its surface.

The main embodiment of the invention

Endoprosthesis 1 for reconstructive plastic surgery of a tape form with a sheath 2, the surface 3 of which is made with protrusions 4 in the form of inclined cone-shaped pointed at the ends 5 of flexible-elastic burrs 6. The interval 7 between the burrs 6 is different, depending on the purpose of the endoprosthesis. The excess of 8 ends 5 of the burrs 6, respectively, the appointment of an endoprosthesis can be performed different from 0.01 to 5 mm

In Fig.1,2,3,4 shows a different implementation of the protrusions of the burrs on the surface of the sheath of the endoprosthesis: unidirectional on one side and on both sides of the tape endoprosthesis, the opposite direction from the middle of the tape endoprosthesis (figure 5 and 6).

In Fig.7 and 8, a tape endoprosthesis with alternating orientation of the protrusions of the burrs through each row on both its sides. It is preferable to stagger the tabs in order to maintain and increase the strength of the endoprosthesis shell and better fix it to soft tissues.

Figure 9 shows a volumetric endoprosthesis 9, on the surface of which protrusions-burrs 6 of one-sided orientation are made on one side of the sheath 10.

Figure 10 shows a volumetric endoprosthesis with alternating inclination of the protrusions of the burrs 6 on each side.

The effectiveness of the proposed endoprosthesis is shown in Fig. 12, which schematically shows an application of a volumetric endoprosthesis 9 with protrusions-burrs 6 to eliminate ptosis of the female mammary gland 11. Position 12 - muscle.

Surgery to eliminate sagging soft tissues of the neck is as follows. Using a wire scalpel, the skin-fat flap is cut according to the intended marking and thereby a subcutaneous tunnel is created in the neck, then skin sections of about 1.5-2 cm are made in the behind-the-ear areas on both sides. A mesh ribbon is stretched through these cuts through the created tunnel endoprosthesis (Fig. 5), then it is pulled on both sides with the necessary effort and pressed against the soft tissues. In this case, the protrusions of the burrs 6 on the tape cling to the wound surface both from the skin and from the side of platism, fixing the tape in the required position, thereby eliminating sagging neck. After this, the wound is sutured. 11 schematically shows a surgical operation for correcting the nasal dorsum 13, endoprosthesis 14, skin and subcutaneous tissue 15.

Industrial applicability

As shown, the invention can be used in various reconstructive, plastic and aesthetic surgical operations.

Information sources

J. Zoltan "Reconstruction of the female mammary gland", Publishing House of the Hungarian Academy of Sciences. 1989 (prototype).

N.M. Aleksandrov "Clinical operative maxillofacial surgery". M .: ″ Medicine ", 1985, pp. 94-95.

Claims (8)

1. An endoprosthesis for reconstructive plastic surgery from a polymer bioinert material, comprising a shell, characterized in that the surface of the shell is made with protrusions in the form of inclined cone-shaped, pointed at the ends of the flexible elastic burrs, while the directivity, location, as well as the interval between burrs are made different depending on the intended purpose of the endoprosthesis, and the excess of the ends of the protrusions above the surface according to the purpose is from 0.01 to 5 mm. 2. The endoprosthesis according to claim 1, characterized in that the protrusions are made on one side of the endoprosthesis and are staggered. 3. The endoprosthesis according to claim 1, characterized in that the protrusions are made on both sides of the endoprosthesis and are staggered. 4. The endoprosthesis according to claim 2 or 3, characterized in that the protrusions have the same orientation. 5. The endoprosthesis according to claim 3, characterized in that the protrusions are in the opposite direction from the middle of the endoprosthesis. 6. The endoprosthesis according to claim 3, characterized in that the protrusions are made with alternating directivity through each row. 7. The endoprosthesis according to claim 3, characterized in that it is made of a three-dimensional shape, while the protrusions have one orientation along the entire surface of each side of the endoprosthesis. 8. The endoprosthesis according to claim 3, characterized in that it is of a three-dimensional shape, while the protrusions are made with alternating direction through each row on each side of the endoprosthesis.

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