RU93267U1 - BONE TISSUE RESTORE (OPTIONS) - Google Patents

Abstract

 1. A means of restoring bone tissue containing a shell and osteoplastic material, the shell consists of a first part and a second part made of absorbent material and connected to each other to form a cavity in which the osteoplastic material is placed. ! 2. The device according to claim 1, characterized in that the osteoplastic material is made in the form of granules. ! 3. The device according to claim 1, characterized in that the osteoplastic material is made with a granule size greater than the size of the holes. ! 4. A means of restoring bone tissue containing a sheath and osteoplastic material, the sheath consists of a first part and a second part made of absorbent material and connected to each other to form a cavity in which the osteoplastic material is placed, and in the first part or second part, through holes. ! 5. The device according to claim 4, characterized in that the osteoplastic material is made in the form of granules. ! 6. The device according to claim 4, characterized in that the osteoplastic material is made with a granule size greater than the size of the holes. ! 7. A means of restoring bone tissue containing a sheath and osteoplastic material, the sheath consists of a first part and a second part made of absorbent material and connected to each other to form a cavity in which the osteoplastic material is placed, and the connection of the first part and the second part is detachable . ! 8. The device according to claim 7, characterized in that the osteoplastic material is made in the form of granules. ! 9. The device according to claim 7, characterized in that the osteoplastic material is made with a granule size larger than the size of

Description

Technical field

The utility model relates to medical equipment and can be used in traumatology and orthopedics to fill bone cavities.

State of the art

A device is known - a polymer implant for filling bone cavities (RF patent No. 47702), which is a rod made of a copolymer of vinylpyrrolidone with methyl methacrylate, a modified capron fiber and calcium gluconate. The device is used as follows: after removal of the damaged tissue and the formation of the cavity, the length of the implant is changed in accordance with the dimensions of the formed cavity and 30-60% of its volume is gradually filled with implants, placing them in different directions and resting their ends against the walls of the bone cavity. Then close the cavity with fascia and soft tissues. The wound is sutured in layers.

The disadvantages of the known technical solutions are the inability to form an implant shape corresponding to the shape of the bone cavity, as well as the inability to completely fill the bone cavity due to the presence of free space between the elements.

The closest technical solution (prototype) is an element for ensuring ingrowth and growth of bone tissue (RF patent No. 2222290), which consists of a plastic or slightly elastic biologically compatible material, preferably a metal or metal alloy. The element is porous, while a natural material, such as hydroxylapatite, bioceramics, etc., can be included as a component in the material of the porous body of the element, and another component, such as plastic, provides plasticity. A porous element, such as grain, in accordance with the invention can be implanted in a living organism, such as a human body, in order to fill the bone cavity. The porous element, namely the grain, can be placed in the shell.

The disadvantages of the prototype are: its implementation as a plastic material, which reduces the shelf life of the material through the use of gel-like substances; inconvenience in working with this material due to the impossibility of forming the necessary shape and volume; as well as the possibility of loss of material and its cost overruns.

The purpose of the proposed utility model is to provide convenience in working with the device, eliminating material overspending and providing the ability to control the shape and volume of the material.

This goal is achieved due to the fact that, according to the first embodiment, the bone tissue repair means comprises a sheath and osteoplastic material, the sheath consists of a first part and a second part made of absorbent material and connected to each other to form a cavity in which the osteoplastic material is placed; according to the second embodiment, the bone tissue repair means comprises a sheath and osteoplastic material, the sheath consists of a first part and a second part made of absorbent material and connected to each other to form a cavity in which the osteoplastic material is placed, and in the first part or second part openings; according to the third embodiment, the bone tissue repair means comprises a sheath and osteoplastic material, the sheath consists of a first part and a second part made of absorbent material and connected to each other to form a cavity in which the osteoplastic material is placed, wherein the connection of the first part and the second part is detachable ; according to the fourth embodiment, the bone tissue repair means comprises a sheath and osteoplastic material, the sheath consists of a first part and a second part made of absorbent material and connected to each other to form a cavity in which the osteoplastic material is placed, wherein the connection of the first part and the second part is detachable partially; in the fifth embodiment, the osteoplastic material is made in the form of granules; according to the sixth embodiment, the osteoplastic material is made with a granule size larger than the size of the holes.

Brief Description of the Drawings

A utility model is illustrated in the drawing, which shows a General view of the device.

Utility Model Disclosure

The drawing shows: hole 1, first part 2, osteoplastic material 3, detachable connection 4, sheath 5, one-piece connection 6, second part 7.

The device is a shell 5 filled with osteoplastic material 3. The main elements of the device are the shell 5 and osteoplastic material 3.

Shell 5 consists of the first part 2 and the second part 7.

The first part 2 is a flat element having two sides. Moreover, the distance between two opposite sides of the first part 2 is much smaller than the dimensions of these sides. The first part 2 is made in the shape of a rectangle. The first part 2 may be made in a different form. In the first part 2, holes 1 can be made. The holes 1 are made through. The size of the holes 1 is made smaller than the particle size of the osteoplastic material 3 to prevent it from falling out of the shell 5. It is possible to perform the first part 2 without holes 1.

The second part 7 is a flat element having two sides. In this case, the distance between two opposite sides of the second part 7 is much smaller than the dimensions of these sides. The second part 7 is made in the shape of a rectangle. The second part 7 may be made in a different form.

The first part 2 and the second part 7 can be made of any material, over time, flexible and durable, able to hold the osteoplastic material 3 under tension and pressure. Also, the material should provide the ability to form and hold the necessary form of the device, for subsequent replacement with its own human tissues. The first part 2 and the second part 7 in this case are made of collagen.

The first part 2 can be connected to the second part 7 by an integral connection 6 along the entire perimeter of the first part 2 and the second part 7. It is possible to connect the first part 2 and the second part 7 by an integral connection 6 not along the entire perimeter. In this case, the edges of the first part 2 and the second part 7, not connected by an integral connection 6, form a detachable connection 4. The first part 2 and the second part 7 face each other with their inner sides to form a cavity in the shell 5. The outer sides of the first part 2 and the second part 7 are facing outward. In this case, through the openings 1, the cavity formed by the first part and the second part communicates with the external environment. The detachable connection 4 is the edge of the first part 2 and the edge of the second part 7, which can be interconnected and disconnected several times. The detachable connection 4 is made with the possibility of access to the cavity and with the possibility of regulating the filling of the shell 5 with osteoplastic material 3. The one-piece connection 6 can be made in various ways, for example, by jointly bending the edges of the first part 2 and second part 7, by welding or gluing the edges , as well as stitching the edges with a kedgut thread (for a definition of a kedgut thread, see, for example, the site http://slovari.yandex.ru/dict/bse/article/00034/12400.htm?text=%D0%BA%D0%B5 % D1% 82% D0% B3% D1% 83% D1% 82% D0% BE% D0% B2% D0% B0% D1% 8F% 20% D0% BD% D0% B8% D1% 82% D1% 8C & stpar3 = 1.1).

Osteoplastic material 3 is a biocompatible material used for osteoplasty or bone grafting (http://www.medword.ru/idex.php?id=20277&letter=%CE&page=35). Osteoplasty is a surgical procedure to eliminate bone deficiency in certain areas of the maxillofacial region (the definition of osteoplasty is given, for example, at http://www.vseostomatologii.ru/operations/detail/91). Subsequently, bone tissue grows between the particles of osteoplastic material 3 and replaces it, and the osteoplastic material 3 dissolves. As osteoplastic material 3, for example, decalcified bone matrix, collagen, hydroxyapatites or bioceramics can be used. Osteoplastic material 3 is made in the form of small particles of various shapes, such as granules. The use of osteoplastic material 3 in the form of small particles makes it possible to fill small cracks in the defect area.

Utility Model Implementation

The utility model is implemented as follows.

The user makes the first part 2 and the second part 7. For this, he cuts the first part 2 and the second part 7, for example of a rectangular shape, from collagen. Next, the user makes holes 1 in the first part. After that, the user connects the first part 2 and the second part 7 with an integral connection 6, for example, stitches the three corresponding edges of the first part 2 with the three corresponding edges of the second part 7 with a kedgut thread. In this case, the unconnected edges of the first part 2 and the second part 7 form a detachable connection 4. Then the user places the osteoplastic material 3 in the cavity formed by the inner sides of the first part 2 and the second part 1 through the detachable connection 4. In this case, the osteoplastic material 3 is located between the inner sides the first part 2 and the second part 7. The user temporarily closes the detachable connection 4, for example, by jointly bending the edges of the first part 2 and the second part 7.

The device is used to repair bone defects in surgery, in a particular case in surgical dentistry. The defect is a cavity in the bone, for example, a cavity in the bone tissue of a person’s jaw, obtained by splitting off a part of the bone tissue of the jaw during tooth extraction. To correct this defect, the user cuts the gum to provide access to the installation site of the device, and prepares the installation site of the device. When performing osteoplasty, the user prepares a device of the required volume corresponding to the volume of the cavity in the bone. To do this, the user opens the detachable connection 4 and removes from the shell 5 or adds the necessary amount of osteoplastic material 3 to the shell 5. Then, the user closes the detachable connection 4, for example, by blindening it with blood. After that, the user places the device with its outer side in a previously surgically prepared cavity in the bone. In this case, the first part 2, with holes 1 made therein, is located in direct contact with the walls of the cavity in the bone. Holes 1, made in the first part 2, accelerate the process of germination of the bone tissue of the jaw into the device, due to the absence of a barrier in the form of a sheath 5 between the osteoplastic material 3 and the bone tissue in place of the holes 1. By placing the device in the cavity in the bone, the user forms the necessary shape devices. The sheath 5 contributes to the retention by the device of this form during the germination of bone tissue. The use of the sheath 5 prevents overspending of the osteoplastic material 3. Next, the user stitches the wound in layers, for example with kedgut thread. Over time, bone tissue gradually grows into the device, while the collagen membrane 5 resorbs, i.e. resolves (the definition of resorption is given, for example, on the website http://dic.academic.ru/dic.nsf/enc_medicine/26472/Resorption). Subsequently, bone tissue completely replaces the device, as a result of which the integrity of the bone tissue of the human jaw is restored.

Thus, by making the device in the form of small particles of osteoplastic material 3 in the elastic shell 5, it is possible to give the device the desired shape due to the plastic properties of the shell 5, and it is also possible to more completely fill in small defects due to the implementation of the osteoplastic material 3 in the form of small particles . By making the device in the form of small particles of osteoplastic material 3 in an elastic sheath 5, it is possible to control the volume of the device by making the sheath 5 with a detachable joint 4, and overspending the osteoplastic material 3 is eliminated by preventing individual granules from falling out by using sheath 5. The first part 2 with holes 1 helps to accelerate the growth of bone tissue into the device, due to the absence of barriers to bone tissue to osteoplastic material 3 in place of the holes 1.

Claims (12)

1. A means of restoring bone tissue containing a shell and osteoplastic material, the shell consists of a first part and a second part made of absorbent material and connected to each other to form a cavity in which the osteoplastic material is placed. 2. The device according to claim 1, characterized in that the osteoplastic material is made in the form of granules. 3. The device according to claim 1, characterized in that the osteoplastic material is made with a granule size greater than the size of the holes. 4. A means of restoring bone tissue containing a sheath and osteoplastic material, the sheath consists of a first part and a second part made of absorbent material and connected to each other to form a cavity in which the osteoplastic material is placed, and in the first part or second part, through holes. 5. The device according to claim 4, characterized in that the osteoplastic material is made in the form of granules. 6. The device according to claim 4, characterized in that the osteoplastic material is made with a granule size greater than the size of the holes. 7. A means of restoring bone tissue containing a sheath and osteoplastic material, the sheath consists of a first part and a second part made of absorbent material and connected to each other to form a cavity in which the osteoplastic material is placed, and the connection of the first part and the second part is detachable . 8. The device according to claim 7, characterized in that the osteoplastic material is made in the form of granules. 9. The device according to claim 7, characterized in that the osteoplastic material is made with a granule size greater than the size of the holes. 10. A means of restoring bone tissue comprising a sheath and osteoplastic material, the sheath consists of a first part and a second part made of absorbent material and connected to each other to form a cavity in which the osteoplastic material is placed, the connection of the first part and the second part being detachable partially. 11. The device according to claim 10, characterized in that the osteoplastic material is made in the form of granules. 12. The device according to claim 10, characterized in that the osteoplastic material is made with a granule size greater than the size of the holes.