Parallel positioning osteotomy device

Abstract

The parallel positioning osteotomy device comprises an operation plate, an osteotomy sleeve, a guide sleeve and a guide rod, one end of the osteotomy sleeve is fixed to one side of the operation plate and is perpendicular to the operation plate, an osteotomy channel is formed in the center of the osteotomy sleeve, and the osteotomy channel penetrates through the osteotomy sleeve and the operation plate at the same time; the osteotomy channel comprises at least three transversely arranged positioning holes, and the adjacent positioning holes are communicated through an osteotomy groove; the two guide sleeves are fixed to one side of the operation plate and are parallel to each other, the two guide sleeves are arranged on the two sides of the osteotomy sleeve respectively and are perpendicular to the osteotomy sleeve, and the guide rods penetrate through the guide sleeves. By arranging the two parallel guide sleeves, the two osteotomy devices can be kept in a parallel state during osteotomy, so that two osteotomy planes are parallel to each other, the consistency of bone regeneration directions is ensured, pressurized healing after two carried bone blocks are finally aligned is facilitated, and the bone carrying operation effect is improved.

Description

Technical Field

[0001] The utility model relates to the field of medical orthopedic equipment, in particular to a parallel positioning osteotomy device. Background Art

[0002] Bone transport is another original method for treating bone defects invented by Dr. Ilizarov in the 1970s. It has been gradually applied in clinical practice since the 1980s. The specific method is to provide support (fixation) to the limb with bone defect through an external fixator, and then artificially cut the normal bone at the upper or lower end of the bone defect, and fix the movable steel pins on the external fixator to the cut normal active bone block. According to the established direction, appropriate speed and frequency, the cut bone block is artificially moved every day (about 1mm), so that the bone block gradually approaches the corresponding bone defect end, thereby repairing the bone defect.

[0003] According to the direction of bone transfer, it is divided into unidirectional bone transfer and bidirectional bone transfer. Taking tibial bone transfer as an example, bidirectional bone transfer is to cut a section of bone from the upper and lower parts of the tibial shaft bone defect, so as to achieve tractional bone regeneration between the transferred bone block and the bone end, and guided bone regeneration between the bone blocks.

[0004] The current bidirectional bone transport is to cut the upper and lower transported bone blocks separately, and the parallelism between the two cut surfaces cannot be guaranteed, resulting in inconsistent growth directions of the bone blocks during traction and regeneration, which is not conducive to pressurized healing after the two transported bone blocks are finally aligned. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] The utility model aims to provide a parallel positioning osteotomy device to keep two osteotomy planes parallel. To achieve the above purpose, the utility model adopts the following technical solutions:

[0007] (II) Technical solution

[0008] A parallel positioning osteotome, characterized in that it includes an operating plate, an osteotomy sleeve, a guide sleeve and a guide rod, wherein one end of the osteotomy sleeve is fixed to one side of the operating plate and is perpendicular to the operating plate, and an osteotomy channel is opened in the center of the osteotomy sleeve, and the osteotomy channel passes through the osteotomy sleeve and the operating plate at the same time; the osteotomy channel includes at least three laterally arranged positioning holes, and adjacent positioning holes are connected through an osteotomy groove; the guide sleeve is fixed to one side of the operating plate, there are two guide sleeves, which are parallel to each other, and the two guide sleeves are respectively placed on both sides of the osteotomy sleeve and are perpendicular to it, and the guide rod passes through the guide sleeve.

[0009] Furthermore, one end of the guide sleeve is flush with the bottom of the operating panel, and the other end extends upward.

[0010] Furthermore, fixing holes are provided at both ends of the operating panel.

[0011] (III) Beneficial effects

[0012] Compared with the prior art, the utility model has obvious advantages and beneficial effects. Specifically, by setting two parallel guide sleeves, the two osteotomes can remain parallel to each other during osteotomy. At the same time, the positioning holes are used to alternately insert Kirschner wires to ensure that multiple osteotomies are on the same plane, so that the two osteotomy planes are parallel to each other, ensuring that the bone regeneration direction is consistent, which is beneficial to the pressurized healing after the two moved bone blocks are finally aligned, and improving the effect of the bone transfer operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention will be further described below in conjunction with the embodiments with reference to the accompanying drawings.

[0014] Figure 1 This is a schematic diagram of the appearance structure of one side of the utility model;

[0015] Figure 2 It is a schematic diagram of the appearance structure of the other side of the utility model;

[0016] Figure 3 It is the front view of the utility model;

[0017] Figure 4 It is a schematic diagram of two osteotomes fixed to the bone;

[0018] Figure 5 It is a schematic diagram of the osteotome in use;

[0019] Figure 6 This is a schematic diagram of the osteotomy;

[0020] Figure 7 This is a schematic diagram of the bones after restoration.

[0021] Description of Figure Numbers:

[0022] 1. Operation panel; 2. Osteotomy sleeve; 21. Osteotomy channel; 211. Positioning hole;

[0023] 212, osteotomy groove; 3, guide sleeve; 4, guide rod; 5, upper bone end;

[0024] 6. Lower bone end; 7. Move the bone block upward; 8. Move the bone block downward; 9. Kirschner wire;

[0025] 10. Osteotomy knife. DETAILED DESCRIPTION

[0026] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0027] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0028] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0029] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0031] See also Figures 1 to 3 As shown, a parallel positioning osteotome comprises an operating plate 1, an osteotomy sleeve 2, a guide sleeve 3 and a guide rod 4, wherein one end of the osteotomy sleeve 2 is fixed to one side of the operating plate 1 and is perpendicular thereto, and an osteotomy channel 21 is opened in the center of the osteotomy sleeve 2, and the osteotomy channel 21 simultaneously penetrates the osteotomy sleeve 2 and the operating plate 1; the osteotomy channel 21 comprises at least three laterally arranged positioning holes 211, and adjacent positioning holes 211 are connected through osteotomy grooves 212;

[0032] The guide sleeves 3 are fixed on one side of the operating plate 1 , and there are two of them parallel to each other. The two guide sleeves 3 are respectively placed on both sides of the osteotomy sleeve 2 and are perpendicular to it. The guide rod 4 passes through the guide sleeves 3 .

[0033] The use principle and method of the utility model will be described with the following embodiments:

[0034] ①, such as Figure 4 and Figure 5 As shown, a bone defect is generated between the upper bone end 5 and the lower bone end 6, two sets of the parallel positioning osteotomes are prepared, two guide rods 4 are inserted into the corresponding guide sleeves 3, and then Kirschner wires 9 are respectively inserted into the rightmost positioning holes 211 of the two osteotomes, and the Kirschner wires 9 are fixed to the bones. At this time, the upper and lower osteotomes are kept in a parallel state and are fixed;

[0035] ②, insert the osteotomy knife 10 into the osteotomy groove 212 on one side of the positioning hole 211 to perform osteotomy on the bone;

[0036] ③. After one osteotomy, the osteotome 10 is pulled out, another Kirschner wire 9 is inserted into the leftmost positioning hole 211, and all Kirschner wires 9 are removed after the Kirschner wire 9 is positioned on the bone. Then, the rightmost positioning hole 211 is aligned with the positioning point on the bone, and the Kirschner wire 9 is re-inserted into the positioning hole 211, and then the osteotome 10 is inserted into the osteotomy groove 212 to perform osteotomy; this cycle is repeated to complete the circular osteotomy, and the upper and lower bone blocks 7 and 8 are removed. Figure 6 As shown;

[0037] ④ After osteotomy, the upper and lower bone blocks 7 and 8 are pulled by a traction frame to form traction bone regeneration between the upper and lower bone ends 5 and 6, respectively, and finally guided bone regeneration between the upper and lower bone blocks 7 and 8. Figure 7 As shown, the bone transfer surgery is completed.

[0038] For easy operation, one end of the guide sleeve 3 is flush with the bottom of the operating plate 1 and the other end extends upward to avoid interference by the guide sleeve 3 when the osteotomy position is too close.

[0039] It is understandable that both ends of the operating panel 1 are provided with fixing holes, so as to facilitate the external connection of other tools such as a fixing frame when necessary.

[0040] The above description is only a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any minor modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A parallel positioning osteotome, characterized in that: The invention comprises an operating plate (1), an osteotomy sleeve (2), a guide sleeve (3) and a guide rod (4); one end of the osteotomy sleeve (2) is fixed to one side of the operating plate (1) and is perpendicular thereto; an osteotomy channel (21) is opened at the center of the osteotomy sleeve (2); the osteotomy channel (21) penetrates both the osteotomy sleeve (2) and the operating plate (1); the osteotomy channel (21) comprises at least three transversely arranged positioning holes (211), and adjacent positioning holes (211) are connected via an osteotomy groove (212); The guide sleeves (3) are fixed on one side of the operating plate (1), and there are two of them which are parallel to each other. The two guide sleeves (3) are respectively placed on both sides of the osteotomy sleeve (2) and are perpendicular to it. The guide rod (4) passes through the guide sleeves (3).

2. A parallel positioning osteotome according to claim 1, characterized in that: One end of the guide sleeve (3) is flush with the bottom of the operating plate (1), and the other end extends upward.

3. The parallel positioning osteotome according to claim 1, characterized in that: Both ends of the operating panel (1) are provided with fixing holes.

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