Ilizarov scaffold for stimulating bone growth

Abstract

The utility model relates to the technical field of bone growth, in particular to an Ilizarov outer frame capable of stimulating bone growth. Comprising two fixed rings, two adjustable rings, a moving ring, a connecting screw rod and a vibration pressure applying assembly, the two adjustable rings are arranged between the two fixed rings, the adjustable rings and the fixed rings are coaxially arranged, the moving ring is arranged between the two adjustable rings, the moving ring and the adjustable rings are coaxially arranged, and the connecting screw rod is connected with the vibration pressure applying assembly. The fixing ring, the adjustable ring and the moving ring are connected into a whole through the lead screw, the connecting lead screw penetrates through the fixing ring, the adjustable ring and the moving ring, the connecting lead screw is sleeved with the vibration pressure applying assembly in a sliding mode, and the vibration pressure applying assembly is arranged between the moving ring and the adjustable ring above the moving ring. According to the device, the microenvironment of the involution end is changed through compression stress, a bone healing system is fully activated, microcirculation regeneration of the involution end is promoted through traction stress, compression efficiency is amplified, and bone healing of the involution end is accelerated. The Ilizarov outer frame is mainly applied to the aspect of the Ilizarov outer frame.

Description

TECHNICAL FIELD

[0001] The utility model relates to bone growth technical field more specifically, and it is Ilizarov external frame that stimulates bone growth. BACKGROUND

[0002] The treatment principle of using Ilizarov external frame is dynamic bone treatment.Adjustable nuts can lengthen the fracture end, and the lengthened bone may be osteoporotic. Because bone can only grow very strong under pressure, similar to a patient lying in bed for a long time, the whole body bone will be osteoporotic, so especially for Ilizarov treatment of femoral defect patients often cooperate with walking, or corresponding rehabilitation treatment to make the bone density greater. The new generated bone is given pressure by the ground and body weight to make the bone grow better.

[0003] However, for patients who cannot walk out of bed, or for patients whose fracture point is in the upper limb, there is a lack of pressure, and in the case of bone lengthening, the bone may not grow well. Even if the bone length reaches, the external frame is removed, and the fracture may occur again. Even if the fracture healing standard is not reached, the external frame cannot be removed for a long time, and the patient cannot live normally. CONTENT OF THE UTILITY MODEL

[0004] To overcome the deficiencies in the prior art, the utility model provides an Ilizarov external frame that stimulates bone growth. The Ilizarov external frame can apply external pressure between the two end frame bodies of the growth part, stimulate bone growth through compression, and improve the quality of patient bone growth without damaging the original structure of the Ilizarov external frame.

[0005] To solve the above technical problems, the utility model adopts the technical scheme of:

[0006] An Ilizarov external frame that stimulates bone growth, comprising a fixed ring, an adjustable ring, a moving ring, a connecting lead screw and a vibration pressure assembly, the fixed ring and the adjustable ring are provided with two groups respectively, the two fixed rings are coaxially arranged on the upper and lower sides, the two adjustable rings are arranged between the two fixed rings, the adjustable ring is coaxially arranged with the fixed ring, the moving ring is arranged between the two adjustable rings, the moving ring is coaxially arranged with the adjustable ring, the fixed ring, the adjustable ring and the moving ring are connected into a whole through a lead screw, the connecting lead screw penetrates the fixed ring, the adjustable ring and the moving ring, the vibration pressure assembly is slidably sleeved on the connecting lead screw, and the vibration pressure assembly is arranged between the moving ring and the adjustable ring above the moving ring.

[0007] The connecting lead screw is connected with the adjustable ring and the moving ring through a nut.

[0008] The vibration pressing assembly comprises an outer shell, a vibrating block, elastic return sheets and a micro vibrating motor, the outer shell adopts a rectangular frame structure with an open top surface, the vibrating block is arranged in the outer shell, the elastic return sheets are arranged at two ends of the vibrating block, one end of each elastic return sheet is fixedly connected with the vibrating block, and the other end is fixedly connected with the inner side wall of the outer shell, a groove is arranged in the vibrating block, and the micro vibrating motor is arranged in the vibrating block.

[0009] Parallel sliding rails are arranged on the inner bottom surface of the outer shell, and sliding grooves matched with the sliding rails are arranged on the bottom surface of the vibrating block, and the vibrating block is slidingly arranged on the sliding rails.

[0010] A motor clamping plate is arranged in the groove of the vibrating block, and the micro vibrating motor is arranged in the motor clamping plate.

[0011] A power supply box is arranged on one side of the outer shell, the power supply box is connected with the micro vibrating motor through power supply wires, a battery replacement door is arranged on one side of the power supply box, and a storage battery is arranged in the power supply box.

[0012] A sliding sleeve is arranged at the bottom of the outer shell, the sliding sleeve is sleeved on the connecting lead screw, and a positioning bolt is arranged on the sliding sleeve.

[0013] A gasket is arranged between the nut on the connecting lead screw and the adjustable ring and the moving ring.

[0014] Compared with the prior art, the device has the beneficial effects that:

[0015] Through the connecting lead screw, the vibration pressing assembly can be connected with the existing Ilizarov outer frame as a whole, without changing the external structure of the existing Ilizarov outer frame, and the device has wide applicability, and the use method combined with the existing outer frame is convenient and fast, and is convenient for actual operation. The micro vibrating motor is used for vibrating the adjustable ring and the moving ring, stimulating the bone quality between the two, so that the acting force between the bones is increased, and the bone quality is better grown. The storage battery in the power supply box is used for power supply, and the battery can be flexibly replaced. The sliding sleeve can flexibly control the setting position of the vibration pressing assembly. The gasket absorbs part of the vibration impact force, so that the acting force applied to the bone is relatively moderate. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structural schematic view of the device.

[0017] Figure 2 is a partial view of the vibration pressure assembly of the utility model;

[0018] Figure 3 is a side view of the vibration pressure assembly of the utility model;

[0019] Figure 4 is a perspective view of the vibration pressure assembly of the utility model;

[0020] Figure 5 is a partial view of the motor clamping plate of the utility model;

[0021] Figure 6 is Figure 1 is an enlarged view of position A in the utility model;

[0022] In the figure: 1 is a fixed ring, 2 is an adjustable ring, 3 is a moving ring, 4 is a connecting screw rod, 5 is a vibration pressure assembly, 6 is an outer shell, 7 is a sliding rail, 8 is a vibration block, 9 is an elastic reset piece, 10 is a motor clamping plate, 11 is a micro vibration motor, 12 is a power supply wire, 13 is a power supply box, 14 is a battery replacement door, 15 is a sliding sleeve, 16 is a positioning bolt, 17 is a gasket. DETAILED DESCRIPTION

[0023] In order to enable the above-mentioned purpose, features and advantages of the utility model to be more clearly understood, the utility model will be further described in detail below in combination with the drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0024] In the following description, many specific details are set forth in order to provide a thorough understanding of the utility model, however, the utility model can also be implemented in other ways different from the description, therefore, the protection scope of the utility model is not limited by the specific embodiments disclosed below.

[0025] As Figures 1 to 6 shown, an Ilizarov external frame for stimulating bone growth, comprising a fixed ring 1, an adjustable ring 2, a moving ring 3, a connecting screw rod 4 and a vibration pressure assembly 5, the fixed ring 1 and the adjustable ring 2 are provided with two groups respectively, the two fixed rings 1 are coaxially arranged on the upper and lower sides, the two adjustable rings 2 are arranged between the two fixed rings 1, the adjustable ring 2 is coaxially arranged with the fixed ring 1, the moving ring 3 is arranged between the two adjustable rings 2, the moving ring 3 is coaxially arranged with the adjustable ring 2, the fixed ring, the adjustable ring and the moving ring 3 are connected into a whole through the screw rod, the whole connected by the fixed ring 1, the adjustable ring 2 and the moving ring 3 is the existing Ilizarov external frame structure. The existing external frame structure is not changed or damaged, and is directly improved.

[0026] The connecting screw rod 4 is arranged through the holes of the fixed ring 1, the adjustable ring 2 and the moving ring 3, the vibration pressing assembly 5 is slidably arranged on the connecting screw rod 4, and the vibration pressing assembly 5 is arranged between the moving ring 3 and the adjustable ring 2 above the moving ring 3. The vibration pressing assembly 5 is arranged according to the osteotomy position. The connecting screw rod 4 is inserted on the existing Ilizarov external frame, the vibration pressing assembly 5 is arranged according to the osteotomy position, the vibration pressing assembly 5 is operated to stimulate the bone quality at the osteotomy position, and the function of stimulating the bone growth is achieved.

[0027] Preferably, the connecting screw rod 4 is connected with the adjustable ring 2 and the moving ring 3 through nuts. The connecting screw rod 4 is fixedly connected with the Ilizarov external frame through the nuts to form an integral whole.

[0028] Preferably, the vibration pressing assembly 5 comprises an outer shell 6, a vibration block 8, elastic return sheets 9 and a micro vibration motor 11. The outer shell 6 is in the form of a rectangular frame structure with an open top surface. The vibration block 8 is arranged in the outer shell 6. The elastic return sheets 9 are arranged at two ends of the vibration block 8. One end of the elastic return sheet 9 is fixedly connected with the vibration block 8, and the other end is fixedly connected with the inner side wall of the outer shell 6. A groove is arranged in the vibration block 8. The micro vibration motor 11 is arranged in the vibration block 8. The micro vibration motor 11 vibrates to drive the vibration block 8 to vibrate. The vibration block 8 reciprocates under the limiting and resetting actions of the elastic return sheets 9 at two sides, transmits the vibration to the outer shell 6 and the connecting screw rod 4, and further transmits the vibration to the adjustable ring 2 and the moving ring 3 to stimulate the bone quality at the osteotomy position.

[0029] Preferably, two parallel sliding rails 7 are arranged on the inner bottom surface of the outer shell 6. A sliding groove is arranged on the bottom surface of the vibration block 8 and matched with the sliding rails 7. The vibration block 8 is slidably arranged on the sliding rails 7. The sliding rails 7 can be in the form of T-shaped rails. The sliding rails 7 guide the movement of the vibration block 8 to avoid the vibration block 8 from shaking randomly.

[0030] Preferably, a motor clamping plate 10 is arranged in the groove of the vibration block 8. The micro vibration motor 11 is arranged in the motor clamping plate 10. The micro vibration motor 11 can be clamped in the motor clamping plate 10 by slightly applying external force manually. The micro vibration motor 11 can be directly pried out when disassembled.

[0031] Preferably, a power supply box 13 is arranged on one side of the outer shell 6. The power supply box 13 is connected with the micro vibration motor 11 through a power supply lead 12. A battery replacement door 14 is arranged on one side of the power supply box 13. A storage battery is arranged in the power supply box 13. The storage battery supplies power to the micro vibration motor 11. A prompt light can be arranged on the power supply box 13 to remind the replacement and charging of the storage battery when the storage battery has insufficient power.

[0032] Preferably, the bottom of the outer shell 6 is provided with a sliding sleeve 15, the sliding sleeve 15 is sleeved on the connecting screw rod 4, and the sliding sleeve 15 is provided with a positioning bolt 16. The position of the outer shell 6 on the connecting screw rod 4 can be flexibly adjusted through the sliding sleeve 15.

[0033] Preferably, a gasket 17 is arranged between the nut on the connecting screw rod 4 and the adjustable ring 2 and the moving ring 3. The gasket 17 can buffer the excessive impact force of the connecting screw rod 4 on the adjustable ring 2 and the moving ring 3, and can also avoid the loosening of the nut caused by frequent shaking.

[0034] Corresponding to the bone cutting position, the connecting screw rod 4 is inserted on the Ilizarov external frame, the vibration pressing assembly 5 is arranged on the connecting screw rod 4 through the sliding sleeve 15, the vibration pressing assembly 5 is arranged between the adjustable ring 2 and the moving ring 3 at the bone cutting position, and through the action of the micro vibration motor 11, the outer shell 6 is driven to make reciprocating vibration movement, and the energy is transmitted to the adjustable ring 2 and the moving ring 3 through the connecting screw rod 4, so as to stimulate the bone quality at the bone cutting position. Combined with the use of the Ilizarov external frame, the acting force between the bones is increased, and the bone quality is better grown.

[0035] The above only details the preferred embodiments of the utility model, but the utility model is not limited to the above-mentioned embodiments, and various changes can be made within the knowledge range possessed by those skilled in the art without departing from the purpose of the utility model, and various changes should be included in the protection range of the utility model.

Claims

1. An Ilizarov frame for stimulating bone growth, characterized by: The invention comprises a fixed ring (1), an adjustable ring (2), a moving ring (3), a connecting screw (4) and a vibration pressure component (5), wherein the fixed ring (1) and the adjustable ring (2) are respectively provided in two groups, the two fixed rings (1) are provided coaxially on the upper and lower sides, the two adjustable rings (2) are provided between the two fixed rings (1), the adjustable ring (2) and the fixed ring (1) are coaxially provided, the moving ring (3) is provided between the two adjustable rings (2), the moving ring (3) and the adjustable ring (2) are coaxially provided, the fixed ring, the adjustable ring and the moving ring (3) are connected into a whole by a screw, the connecting screw (4) passes through the fixed ring (1), the adjustable ring (2) and the moving ring (3), the vibration pressure component (5) is slidably sleeved on the connecting screw (4), and the vibration pressure component (5) is provided between the moving ring (3) and the adjustable ring (2) above the moving ring (3).

2. The Ilizarov frame for stimulating bone growth according to claim 1, characterized in that: The connecting screw rod (4) is connected to the adjustable ring (2) and the moving ring (3) through which they are connected via nuts.

3. The Ilizarov frame for stimulating bone growth according to claim 1, characterized in that: The vibration pressure component (5) includes an outer shell (6), a vibration block (8), an elastic reset plate (9) and a micro vibration motor (11). The outer shell (6) adopts a rectangular frame structure with an open top surface. The vibration block (8) is arranged in the outer shell (6). The elastic reset plate (9) is arranged at both ends of the vibration block (8). One end of the elastic reset plate (9) is fixedly connected to the vibration block (8), and the other end is fixedly connected to the inner wall of the outer shell (6). A groove is provided in the vibration block (8), and the micro vibration motor (11) is arranged in the vibration block (8).

4. The Ilizarov frame for stimulating bone growth according to claim 3, characterized in that: Two parallel slide rails (7) are provided on the inner bottom surface of the outer shell (6), and a slide groove matching the slide rails (7) is provided on the bottom surface of the vibration block (8), and the vibration block (8) is slidably arranged on the slide rails (7).

5. The Ilizarov frame for stimulating bone growth according to claim 3, characterized in that: A motor clamping plate (10) is provided in the groove of the vibration block (8), and the micro vibration motor (11) is provided in the motor clamping plate (10).

6. The Ilizarov frame for stimulating bone growth according to claim 3, characterized in that: A power supply box (13) is provided on one side of the outer shell (6), and the power supply box (13) is connected to the micro vibration motor (11) via a power supply wire (12). A battery replacement door (14) is provided on one side of the power supply box (13), and a storage battery is installed in the power supply box (13).

7. The Ilizarov frame for stimulating bone growth according to claim 3, characterized in that: A sliding sleeve (15) is provided at the bottom of the outer shell (6), the sliding sleeve (15) is sleeved on the connecting screw rod (4), and a positioning bolt (16) is provided on the sliding sleeve (15).

8. The Ilizarov frame for stimulating bone growth according to claim 1, characterized in that: A gasket (17) is provided between the nut on the connecting screw rod (4) and the adjustable ring (2) and the moving ring (3).

Images