RU2765861C2 - Thread for lifting the soft tissues of the face and body - Google Patents

Abstract

FIELD: medical technology.

SUBSTANCE: invention relates to medical technology, namely to a thread for tightening the soft tissues of the face and body, the thread contains a flexible base including a section on which pairwise parallel locking sections are made, connected by bridges. Each of the stop segments is oriented to the longitudinal axis of a given section at an angle of 5-90°C, has pointed ends or rounded ends or rounded ends with pointed ends, oriented with the ends or pointed ends in opposite directions, and the possibility of fixation in tissues across the longitudinal axis of the section of the stopper segments. The jumpers are made with the possibility of connecting their ends with the opposite ends of the locking segments or connecting the ends of the jumpers with the centers of the locking segments with the possibility of straightening the locking segments when tensioning the thread and setting the ends of each locking segment perpendicular to the axis of the thread. In addition, lifting using a thread of the claimed design has many advantages, namely: reliable fixation in tissues; elasticity; the ability to lift "heavy" tissues; due to the larger area (when unfolding the thread), there is no thread contouring through the skin; achieving a lasting effect; when used as a suture material - securely fixes the edges without contact of the thread with the outer surface of the skin.

EFFECT: ensuring maximum and adequate tissue lifting both in the area with a high mechanical stress on the tissues (lifting the tissues of the upper and lower extremities, chest, abdomen, lifting the tissues in the perineal region), and in areas with minimal mechanical stress on the tissues (when lifting the tissues of the face and neck) due to a certain design of the thread.

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Description

The invention relates to materials for lifting the soft tissues of the face and body (hereinafter referred to as lifting) and can be used in plastic surgery, surgery, cosmetology, dermatovenereology, gynecology.

Threads containing locking notches for fixation in tissues are widely known. Examples of such threads are lifting threads known from the descriptions to patents RU 2584079 C1, 05/20/2016, RU 2 341 210 C2, 12/20/2008 or US 8267961 B2, 09/18/2012.

The disadvantages of the known threads include their slight elastic stretch in the axial direction, which depends only on the properties of the thread material. The need to select the shape of the locking notches for fabrics of different thicknesses and densities is another disadvantage of the known threads.

The closest analogue of the invention (prototype) is a thread containing a base with pointed ends and locking notches for fixation in tissues (RU 2528077 C1, 10.09.2014).

The thread, known from the description to the patent RU 2528077, can be used for lifting and can be made with locking notches of various shapes for fabrics of various thicknesses and densities, but it has a slight elastic stretch in the axial direction.

The invention is aimed at solving the technical problem of creating a lifting thread with an elastic effect, which, if necessary, can significantly elongate when stretched and contract when the axial load is removed to provide a tissue lifting effect. A

The technical result of the invention is to provide maximum and adequate tissue lifting, both in areas with a high mechanical load on tissues (tissue lifting of the upper and lower extremities, chest, abdomen, tissue lifting in the perineum), and in areas with minimal mechanical load on tissues. (during face and neck tissue lifting), due to a specific thread design. In addition, lifting using the thread of the claimed design has many advantages, namely: reliable fixation in the tissues; elasticity; the ability to lift "heavy" tissues; due to the larger area (when unfolding the thread), there is no contouring of the thread through the skin; achieving a lasting effect; when used as a suture material, it securely fixes the edges without contact of the thread with the outer surface of the skin.

The essence of the invention is expressed in a set of essential features, in which the thread for lifting contains a flexible base, including a section on which pairwise parallel locking segments are made, connected by bridges, while each of the locking segments is oriented to the longitudinal axis of this section at an angle of 5-90 ° , has pointed ends or rounded ends or rounded ends with pointed ends, oriented ends or pointed ends in opposite directions, and the possibility of fixation in the tissues across the longitudinal axis of the section of the locking segments, moreover, the jumpers are made with the possibility of connecting their ends with opposite ends of the locking segments or connecting the ends of the jumpers with the centers of the locking segments.

The flexible base of the thread may contain pointed ends. In this case, the pointed ends of the base can be made in the form of arrowheads (arrows), as well as a one-sided hook (harpoon).

Additionally, at some distance from the arrow located at the front end of the base, a ligature eye (ring) may be contained.

These elements (arrows and ring) can be used in several ways.

1. It is possible to hem the ring to the fascia, fix the periosteum with a pin / screw to the bone.

2. It is possible to connect two threads together: the arrow / harpoon of one thread is inserted into the ring of the second, and the arrow / harpoon of the second thread is inserted into the ring of the first thread. Thus, the two threads are securely connected to each other (withstand significant mechanical loads), and without leading to significant thickening (no knots).

In particular cases of execution or use, the thread for lifting may contain a flexible base with a diameter of 0.05 mm to 2.0 mm. Thanks to this fact, it is possible to manufacture a thread for a specific application. So, for example, thicker threads can be used in areas with more “heavy” tissues or areas with increased mechanical stress (lifting in the areas of the upper and lower extremities, chest, abdomen, perineum). Thin threads can be used in areas with thinner skin (face and neck area).

The base of the thread may additionally contain at least one smooth section at one or both ends of the base and / or a section containing locking notches (possible arrangements: two-sided symmetrically / asymmetrically located, “arrow-shaped” elements, one-sided symmetrically / asymmetrically located, " swept" elements) for fixation in tissues.

A section with locking notches can be located at the end of the thread for reliable fixation of the distal end of the thread and additional fixation of the lifting effect. In a particular case, the section with stop notches can also be located in the center of the thread between 2 sections with stop cuts.

In particular cases, the section on which pairwise parallel locking sections are made, connected by bridges, is located between the smooth sections of the thread.

The ends of the locking segments are connected by a jumper asymmetrically, that is, the end of one locking segment is connected to the opposite end of the other locking segment. Moreover, the closer to the ends the fixation occurs, the less force is required to straighten the locking segments when the thread is tensioned. Due to this fact, it is possible to manufacture threads with different force of opening of the locking segments.

The thread can be inserted into the subcutaneous fat of the human body using a needle/cannula.

The essence of the invention is illustrated by figures 1-24.

In the figures, positions 1-15 show:

1 - the base of the thread for lifting,

2 - the first pointed end,

3 - the second pointed end,

4 - locking notches,

5 - ligature ear,

6 - the first section of the base of the thread,

7 - the second section of the base of the thread,

8 - the third section of the base of the thread,

9 - jumpers,

10 - stop cuts,

11 - rounded ends of the stop pieces,

12 - pointed end at the ends of the locking segments,

13 - one non-pointed end of the thread,

14 - pointed end of the locking segment,

15 - the second non-pointed end of the thread.

In FIG. 1 shows a general view of a thread for lifting with pointed ends 2, 3, a ligature eye 5 at the first pointed end, a section with locking notches 4 located at the second pointed end, made on both sides of the base of the thread, a section of locking segments 10 with rounded ends 11 having pointed end 12.

In FIG. 2 shows a general view of the thread for lifting with pointed ends 2, 3, a ligature eye 5 at the first pointed end 2, located at the second pointed end 3 with a section with locking notches 4, made on both sides of the base of the thread, with two sections of locking segments 10 with rounded ends 11 having a pointed end 12.

In FIG. 3 shows a general view of the thread for lifting with pointed ends 2, 3, located at the second pointed end 3, with a section with locking notches 4, made on both sides of the base of the thread, with a section of locking segments 10 with rounded ends 11, having a pointed end 12.

In FIG. 4 shows a general view of the thread for lifting with one pointed end 3, located at the pointed end 3 with a section with locking notches 4, made on both sides of the base of the thread, with a section of locking segments 10 with rounded ends 11, having a pointed end 12.

In FIG. 5 shows a general view of the thread for lifting with pointed ends 2, 3, a ligature eye 5 at the first pointed end 2, located at the second pointed end 3 with a section with locking notches 4, made on one side of the base of the thread, oriented upwards, with a section of locking segments 10 s rounded ends 11 having a pointed end 12.

In FIG. 6 shows a general view of the thread for lifting with pointed ends 2, 3, a ligature eye 5 at one pointed end 2, a section of locking segments 10 with rounded ends 11 having a pointed end 12.

In FIG. 7 shows a general view of the thread for lifting with a pointed end 3, a ligature eye 5 at the non-pointed end 13, with a section located at the pointed end 3 with locking notches 4 made on both sides of the base of the thread, a section of locking segments 10 with rounded ends 11 having a pointed butt 12.

In FIG. 8 shows a general view of the thread for lifting with a pointed end 2, a ligature eye 5 at the pointed end 2, with a section located at the non-pointed end 13 with locking notches 4 made on both sides of the base of the thread, a section of locking segments 10 with rounded ends 11 having a pointed butt 12.

In FIG. 9 shows a general view of the thread for lifting with pointed ends 2, 3, a ligature eye 5 at the first pointed end 2, located at the second pointed end 3 with a section with locking notches 4, made on one side of the base of the thread, oriented downwards, with a section of locking segments 10 s rounded ends 11 having a pointed end 12.

In FIG. 10 shows a general view of a thread for lifting with pointed ends 2, 3, a ligature eye 5 at the first pointed end 2, a section with locking notches 4 located at the second pointed end 3, made on both sides of the base of the thread, a section of locking segments 10 with pointed ends 14 .

In FIG. 11 shows a general view of the thread for lifting with non-pointed ends 13, 15, a ligature eye 5 located at one end 13, and located at the second end 15 with a section with locking notches 4 made on both sides of the base of the thread, a section of locking segments 10 with rounded ends 11 having a pointed end 12.

In FIG. 12 shows a general view of the thread for lifting with non-pointed ends 13, 15, and a section of stop segments 10 with rounded ends 11 having a pointed end 12.

In FIG. 13 shows a general view of the thread for lifting with pointed ends 2, 3, a section located at one pointed end 3 with locking notches 4 made on both sides of the base of the thread, a section of locking segments 10 with pointed ends 14.

In FIG. 14 shows a general view of the thread for lifting with a pointed end 3, located at the pointed end 3, a section with locking notches 4 made on both sides of the base of the thread, a section of locking segments 10 with pointed ends.

In FIG. 15 shows a general view of the thread for lifting with a pointed end 3, a section with locking notches 4 located at the pointed end 3, made on both sides of the base of the thread, a ligature eye 5 located at the non-pointed end 13, a section of locking segments 10 with pointed ends 14.

In FIG. 16 shows a general view of the thread for lifting with pointed ends 2, 3, a ligature eye 5 at the first pointed end 2, located at the second pointed end 3 with a section with locking notches 4, made on one side of the base of the thread, oriented upwards, with a section of locking segments 10 s pointed ends 14.

In FIG. 17 shows a general view of the thread for lifting with pointed ends 2, 3, a ligature eye 5 at the first pointed end 2, located at the second pointed end 3 with a section with locking notches 4, made on one side of the base of the thread, oriented downwards, with a section of locking segments 10 s pointed ends 14.

In FIG. 18 shows a general view of a thread for lifting with pointed ends 2,3, a ligature eye 5 at the first pointed end 2, a section of locking segments 10 with pointed ends 14.

In FIG. 19 shows a general view of the thread for lifting with a pointed end 2, a ligature eye 5 located at the pointed end 2, a section of locking segments 10 with pointed ends 10.

In FIG. 20 shows a general view of the thread for lifting with a pointed end 2, a ligature eye 5 at the pointed end 2, located at the second non-pointed end 13, a section with locking notches 4 made on both sides of the base of the thread, a section of locking segments 10 with pointed ends 14.

In FIG. 21 shows a general view of the thread for lifting with non-pointed ends 13, 15, a ligature eye 5 at one end 13, located at the second end 15 with a section with locking notches 4 made on both sides of the base of the thread, a section of locking segments 10 with pointed ends 14.

In FIG. 22 shows a general view of the thread for lifting with non-pointed ends 13, 15, a section of stop segments 10 with pointed ends 14.

In FIG. 23 shows a general view of the thread for lifting with pointed ends 2, 3, a ligature eye 5 at the first pointed end 2, a section with locking notches 4 located at the second pointed end 3, made on both sides of the base of the thread, two sections of locking segments 10 with pointed ends 14.

In FIG. 24 shows a general view of a thread for lifting with pointed ends 2, 3, a ligature eye 5 at the first pointed end 2, a section with locking notches 4 located at the second pointed end 3, made on both sides of the base of the thread, a section of locking segments 10 with rounded ends 11 having a pointed end 12. Jumpers 9 connect the centers of the locking segments 10.

The lifting thread shown in Fig. 1 comprises a flexible base 1 with a first pointed end 2, a second pointed end 3 and locking barbs 4 for fixation in tissues. The thread for lifting may have a ligature eye 5, which can be placed on the first section 6 of the base 1 at the first pointed end 2. The locking notches 4 are located on the second section 7 of the base 1 at the second pointed end 3. The third section 8 of the base 1, located between the first section 6 and the second section 7 is made in the form of parallel locking sections 10 connected by bridges 9, each of which is oriented to the longitudinal axis of the first section 6 at an angle of 5-90°. Locking segments 10 have the ability to fix in the tissues across the longitudinal axis of the first section. The ends 11 of the locking segments 10 are rounded and have a pointed end 12. The ends of the locking segments 10 are oriented with pointed ends in opposite directions, but to the axis of the thread. The ends of the jumpers 9 are connected to the opposite rounded ends of the locking segments 10. Due to this structure, the thread easily passes through the cannula and soft tissues. But when the thread is tensioned (traction along the long axis), the stop pieces (crossbars) are set perpendicular to the axis of the thread. It is thanks to the crossbars that this thread exhibits dynamic (elastic) properties.

The flexible base 1 of the thread is made with a diameter of 0.05 to 2.0 mm.

The thread for lifting can be made from the following materials:

1. Poli L-Lactide acid

2. Poli D-Lactide acid

3. Poli D,L-Lactide acid

4. Poli L-Lactide-caprolactone acid

5. Poli L-Lactide acid + HA (hyaluronic acid)

6. Poli D-Lactide acid + HA (hyaluronic acid)

7. Poli D,L-Lactide acid + HA (hyaluronic acid)

8. Poli L-Lactide-caprolactone acid + HA (hyaluronic acid)

9.Polypropylene

10. Polypropylene + HA (hyaluronic acid)

11. Poli L-Lactide acid + Ag+ (ions, silver particles)

12. Poli D-Lactide acid + Ag+ (ions, silver particles)

13. Poli D,L-Lactide acid + Ag+ (ions, silver particles)

14. Poli L-Lactide-caprolactone acid + Ag+ (ions, silver particles)

15. Poli L-Lactide acid + HA + Ag+ (ions, silver particles)

16. Poli D-Lactide acid + HA + Ag + (ions, silver particles)

17. Poli D,L-Lactide acid+ HA + Ag+ (ions, silver particles)

18. Poli L-Lactide-caprolactone acid+ HA + Ag+ (ions, silver particles)

19. Polypropylene + Ag+ (ions, silver particles)

20. Polypropylene + HA + Ag+ (ions, silver particles).

These types of threads are produced by hot or cold extrusion into a pre-prepared shape. A special feature of the casting is continuous pouring, which prevents the formation of docking nodes between the individual links of the thread. Thanks to this thread extrusion technology, there are no thread sections with weakened physical and mechanical properties.

When carried into the tissue, the second pointed end 3 of the base 1 of the thread, made with inclined locking notches 4, easily passes through the cannula and enters the soft tissues.

The third section 8 of the flexible base 1, which is located between the first section 6 and the second section 7, does not prevent the thread from passing through the tissues, because locking segments 10 are located at an angle of 5-90° to the longitudinal axis of the first section 6. The rounded ends of each locking segment 10 are oriented with pointed ends in opposite directions, do not injure tissue.

When removing the axial load flexible base 1 location of the locking segments 10 at an angle of 5-90°. to the longitudinal axis of the first section 6 does not allow the thread to move in the opposite direction, and the tissues to move relative to each other for a considerable distance. At the same time, the presence of locking notches 4 on the thread makes it possible to further strengthen the fixation of the thread in the tissues.

With an increase in traction force, the locking segments 10 change their position to the required angle relative to the longitudinal axis of the first section 6 of the base 1 and are fixed in the tissues by the pointed ends of the rounded ends of the locking segments 10.

The possibility of fixation in the tissues of the locking segments 10 across the longitudinal axis of the first section 6 at an angle is provided by the asymmetric connection of the ends of the bridges 9 with the opposite rounded ends of the locking segments 10.

The asymmetric connection of the ends of the bridges 9 with the opposite rounded ends of the locking segments 10 allows the lifting thread to increase in length when stretched and shorten it when the pulling force is reduced. Such a change in the length of the thread provides reliable fixation of tissues during lifting in all areas, including areas with active movements and active facial expressions.

If there is a need to withstand significant mechanical loads, the surgeon has the ability to connect two threads to each other by inserting the first pointed end 2 of the base 1 of the first thread into the ligature eye 5 of the second thread, and then insert the first pointed end 2 of the second thread into the ligature eye 5 of the first threads. The resulting connection securely connects both threads to each other without the formation of knots, i.e. without a significant increase in the thickness of the thread, and, therefore, the use of such threads for lifting is less traumatic.

The given variants of the constructive implementation of the thread are special cases and do not exhaust all possible implementations of the invention.

The achievement of the technical result of the claimed invention is confirmed by the following examples.

Example 1

Patient M., 48 years old. As a result of various procedures (cryolipolysis, massage, lymphatic drainage, etc.) and following a strict diet, she dramatically reduced her body weight by 45 kg. Examination revealed deep nasolabial folds, ptosis of the upper eyelid, hernia of the lower eyelid, deformity of the facial contour, hypotension of the buccal regions. When examining the body, a transverse fold of subcutaneous fat 5 cm thick was found on the anterior abdominal wall (the measurement was carried out with a caliperometer).

At the first stage, facial skin was lifted using a thread with the design shown in Fig. 12. Lifting was carried out by introducing threads with a diameter of 0.05 mm with an inclination of the stop segments 10, located first at an angle of 20°, and then fixed in the tissues at an angle of 65°. The use of these threads for lifting made it possible to optimize muscle tone, eliminate ptosis, shape the contour of the face closer to the ideal, wrinkles were smoothed out after the end of the treatment.

At the second stage, the skin of the anterior abdominal wall and the inner surface of the thighs were lifted. For this, a thread with the construction shown in Fig. 22. We used a thread with a diameter of 2 mm and with an inclination of the stop segments 10 located first at an angle of 50° and then fixed in the tissues at an angle of 90°. This provided a significant tightening of tissues with a high mechanical load. As a result, the transverse fold of subcutaneous fat decreased by 1.5 cm.

Visually, the age of the patient began to correspond to 35 years.

Example 2

Patient R., 59 years old. She complained of sagging skin in the area of the oval of the face and upper eyelids, the formation of a second chin, marks under the eyes, nasolabial and eyebrow wrinkles. On examination: tissue turgor is reduced. For the treatment of sagging skin and the elimination of the second chin, threads with a diameter of 0.25 mm were used with an inclination of the stop segments 10 (the ends of the stop segments are rounded), located first at an angle of 5°, and then fixed in the tissues at an angle of 75°. The introduction of threads was carried out in the longitudinal direction from the periphery to the center along the contour of the face, as well as in the area of the second chin.

In this case, lifting of all three areas of the patient's face is provided.

Visually, the patient looks 50 years old.

Example 3

Patient E., 52 years old. She complained of age-related changes in the upper third of her face. On examination, the formation of horizontal wrinkles of the forehead, vertical wrinkles of the glabella region, and pronounced ptosis of the eyebrows are noted. For lifting the forehead skin, a thread with a diameter of 0.5 mm was used with an inclination of the stop segments 10 (the ends of the stop segments are rounded) located at an angle of 90°. The thread was introduced into the tissue through a cannula. The thread is fixed in the tissues at an angle of 90°. Thus, horizontal wrinkles of the forehead, vertical wrinkles of the glabella area were corrected, and eyebrows were lifted.

Visually, the age of the patient began to correspond to 42 years.

Thus, a new type of thread was developed, which, due to the presence of a section with pairwise parallel locking segments connected by jumpers, to a greater extent tighten the soft tissues of the human body and fix them in the desired position. When the locking segments are extended, their rounded ends easily pass between the connective tissue bridges of the subcutaneous fatty tissue (they slide off, but only in one direction), when the elongation load is removed, the point of the smoothed / rounded ends is securely fixed in the connective tissue bridges (like the tip of a harpoon or arrow ). Due to the “reserve” of the length of the thread (even when the stop pieces are extended), the thread can be used in areas with active movements, active facial expressions, as it has a springy effect (it lengthens when stretched and contracts when the stretch is removed).

Claims (8)

1. A thread for tightening the soft tissues of the face and body, containing a flexible base, including a section on which pairwise parallel locking sections are made, connected by jumpers, with each of the locking sections oriented to the longitudinal axis of this section at an angle of 5-90 ° C, has pointed ends or rounded ends or rounded ends with pointed ends, oriented ends or pointed ends in opposite directions, and the possibility of fixing in the tissues across the longitudinal axis of the section of the locking segments, moreover, the jumpers are made with the possibility of connecting their ends with opposite ends of the locking segments or connecting the ends of the jumpers with centers of locking segments with the possibility of straightening the locking segments when the thread is tensioned and setting the ends of each locking segment perpendicular to the thread axis. 2. The thread according to claim 1, characterized in that the flexible base is made with a diameter of 0.05 to 2.0 mm. 3. The thread according to claim 1, characterized in that the section on which pairwise parallel locking sections are made, connected by bridges, is located between the smooth sections of the thread. 4. The thread according to claim 1, characterized in that it additionally contains pointed ends of a flexible base. 5. The thread according to claim 4, characterized in that the pointed ends of the base are made in the form of swept tips. 6. The thread according to claim 1, characterized in that it additionally contains locking notches for fixation in tissues. 7. The thread according to claim 6, characterized in that, in addition, the section with locking notches is made with the possibility of being located in the center of the thread between 2 sections with locking segments. 8. The thread according to claim 4, characterized in that it additionally contains a ligature eye placed on the base section at the pointed end.

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