A continuously adjustable bone traction support and a method of using the same

Abstract

The present invention discloses a continuously adjustable bone traction support and a method for using the same, comprising a Kirschner wire, a traction device and a fixing plate; the fixing plates are two, each of which comprises a left plate and a right plate, a continuous tooth groove is provided at the junction of the left and right plates, a gear matched with the continuous tooth groove is provided on the traction device, the traction device is provided at the junction of the left and right plates of the fixing plate, the gear is meshed with the left and right plates, the left and right plates of the fixing plate are connected by bolts, the Kirschner wire passes through the central through hole of the traction device corresponding to the two fixing plates, and Kirschner wire fixing devices are provided at both ends of the Kirschner wire; the method for using the same comprises the steps of: 1. assembling the traction support; 2. implementing bone traction. The present invention has a simple structure and is easy to operate, and can adjust the length of the bone traction and accurately control it, thereby protecting the injured limb of the patient.

Description

Technical Field

[0001] The invention relates to the research field of medical devices, and in particular to a continuously adjustable bone traction bracket and a use method thereof. Background Art

[0002] In orthopedic clinical treatment, limb fractures often require bone traction technology to prevent muscle contraction and prevent and correct soft tissue contracture. At the same time, fracture traction can stabilize the fracture to a certain extent, reduce patient pain, and can be used as the final treatment for fractures under certain conditions.

[0003] However, the bone traction commonly used in clinical practice requires patients to stay in bed for a long time, and the length of traction cannot be adjusted and cannot be precise, which brings many inconveniences and hidden dangers to patients. Summary of the invention

[0004] The present invention aims to provide a continuously adjustable bone traction support and a method for using the same, which has a simple structure and is easy to operate. The length of the bone traction can be adjusted and accurately controlled to protect the injured part of the patient's limb.

[0005] To achieve the above-mentioned purpose, the present invention provides a continuously adjustable bone traction bracket, comprising a Kirschner wire, a traction device and a fixing plate; there are two fixing plates, each of which comprises a left plate and a right plate, a continuous tooth groove is provided at the junction of the left and right plates, a gear matched with the continuous tooth groove is provided on the traction device, the traction device is arranged at the junction of the left and right plates of the fixing plate, the gear is meshed with the left and right plates, the left and right plates of the fixing plate are connected by bolts, the Kirschner wire passes through the central through hole of the traction device corresponding to the two fixing plates, and Kirschner wire fixing devices are provided at both ends of the Kirschner wire.

[0006] Preferably, the traction device comprises a sleeve and a baffle; the baffle is fixedly connected to both ends of the sleeve, the sleeve (201) is connected to the center of the baffle, and the gear is arranged on the outer wall of the sleeve.

[0007] Preferably, the Kirschner wire fixing device includes a sleeve and a fastening bolt; a threaded hole is provided on the side of the sleeve, the threaded hole is vertically connected to the central through hole of the sleeve, the inner diameter of the central through hole of the sleeve is adapted to the outer diameter of the Kirschner wire, and the fastening bolt is adapted to the threaded hole of the sleeve.

[0008] Preferably, there are two Kirschner wires.

[0009] Preferably, there are four traction devices.

[0010] Preferably, the fixing plate is in the shape of an elongated plate.

[0011] Preferably, the fixing plate is provided with scale lines longitudinally.

[0012] Furthermore, the method of use comprises the steps of:

[0013] Step 1, assemble the traction bracket, the gears of the traction device are respectively meshed with the continuous tooth grooves at the junction of the left and right plates of the fixed plate, the left and right plates of the fixed plate are connected with bolts, first use a Kirschner wire to penetrate the bones of the local limbs, loosen the bolts, adjust the meshing position between the traction device and the left and right plates of the fixed plate according to the puncture position of the Kirschner wire, preliminarily fix the traction device, and then use the two ends of the Kirschner wire to pass through the central through holes of the traction device corresponding to the two fixed plates, and then install the Kirschner wire fixing device on both ends of the Kirschner wire;

[0014] Step 2: Implement bone traction, loosen the bolts, adjust the meshing position between the traction device and the left and right plates of the fixation plate, and use the traction device to drive the Kirschner wire to move, change the relative position between the two Kirschner wires, control the adjustment distance through the scale lines on the fixation plate, tighten the bolts to re-fix the traction device, and finally let the fixation plate clamp the local limbs, tighten the fastening bolts of the Kirschner wire fixation device to clamp the fixation plate.

[0015] The present invention has the following beneficial effects:

[0016] 1. Simple structure and easy operation;

[0017] 2. The length of bone traction can be adjusted and precisely controlled;

[0018] 3. The whole device forms a support to protect the injured part of the patient's limbs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention installed on a local limb;

[0021] Figure 2 It is a schematic diagram of the longitudinal cross-sectional structure of the present invention;

[0022] Figure 3 It is a structural schematic diagram of the traction device of the present invention;

[0023] Figure 4 It is a schematic structural diagram of the Kirschner wire fixation device of the present invention;

[0024] In the figure: 1-Kirschner wire, 2-traction device, 201-cannula, 202-baffle, 3-fixation plate, 301-scale line, 302-continuous tooth groove, 4-bolt, 5-Kirschner wire fixing device, 501-sleeve, 502-fastening bolt, 6-partial limb. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0028] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0029] In the description of the embodiments of the present invention, it should be noted that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the invention product is usually placed when in use, or the orientation or positional relationship commonly understood by those skilled in the art, or the orientation or positional relationship in which the invention product is usually placed when in use, which is only for the convenience of describing the present invention and simplifying the description, and does 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. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0030] In the description of the embodiments of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "setting", "installation" and "connection" 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 direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] A continuously adjustable bone traction support of the present invention comprises a Kirschner wire 1, a traction device 2 and a fixing plate 3; there are two fixing plates 3, each of which comprises a left plate and a right plate, a continuous tooth groove 302 is provided at the junction of the left and right plates, a gear matched with the continuous tooth groove 302 is provided on the traction device 2, the traction device 2 is arranged at the junction of the left and right plates of the fixing plate 3, the gear is meshed with the left and right plates, the left and right plates of the fixing plate 3 are connected by bolts 4, the Kirschner wire 1 passes through the central through holes of the corresponding traction devices 2 on the two fixing plates 3, and Kirschner wire fixing devices 5 are provided at both ends of the Kirschner wire 1.

[0032] Preferably, the traction device 2 comprises a sleeve 201 and a baffle 202 ; the baffle 202 is fixedly connected to both ends of the sleeve 201 , the sleeve 201 is communicated with the center of the baffle 202 , and the gear is arranged on the outer wall of the sleeve 201 .

[0033] Preferably, the Kirschner wire fixing device 5 includes a sleeve 501 and a fastening bolt 502; a threaded hole is provided on the side of the sleeve 501, the threaded hole is vertically connected to the central through hole of the sleeve 501, the inner diameter of the central through hole of the sleeve 501 is adapted to the outer diameter of the Kirschner wire 1, and the fastening bolt 502 is adapted to the threaded hole of the sleeve 501.

[0034] Preferably, there are two Kirschner wires 1.

[0035] Preferably, there are four traction devices 2.

[0036] Preferably, the fixing plate 3 is in the shape of an elongated plate.

[0037] Preferably, a scale line 301 is longitudinally provided on the fixing plate 3 .

[0038] Furthermore, the method of use includes:

[0039] Step 1, assemble the traction bracket, the gears of the traction device 2 are respectively meshed with the continuous tooth grooves 302 at the junction of the left and right plates of the fixing plate 3, the left and right plates of the fixing plate 3 are connected with bolts 4, firstly penetrate the bones of the local limbs 6 with the Kirschner wire 1, loosen the bolts 4, adjust the meshing position between the traction device 2 and the left and right plates of the fixing plate 3 according to the puncture position of the Kirschner wire 1, preliminarily fix the traction device 2, and then use the two ends of the Kirschner wire 1 to pass through the corresponding central through holes of the traction device 2 on the two fixing plates 3, and then install the Kirschner wire fixing device 5 at both ends of the Kirschner wire 1;

[0040] Step 2, implement bone traction, loosen the bolt 4, adjust the meshing position between the traction device 2 and the left and right plates of the fixing plate 3, and drive the Kirschner wire 1 to move with the traction device 2 to change the relative position between the two Kirschner wires 1. The adjustment distance is controlled by the scale line 301 on the fixing plate 3, and then tighten the bolt 4 to re-fix the traction device 2. Finally, let the fixing plate 3 clamp the local limb 6, and tighten the fastening bolt 502 of the Kirschner wire fixing device 5 to clamp the fixing plate 3.

[0041] Specific implementation process: the meshing teeth of the traction device 2 are respectively meshed with the continuous tooth grooves 302 at the junction of the left and right plates of the fixing plate 3, and then the left and right plates of the fixing plate 3 are connected by bolts 4, so as to fix the traction device 2. First, the Kirschner wire 1 is used to penetrate the bones of the local limbs 6, and the bolts 4 are loosened. According to the puncture position of the Kirschner wire 1, the meshing position between the traction device 2 and the left and right plates of the fixing plate 3 is adjusted to preliminarily fix the traction device 2, and then the two ends of the Kirschner wire 1 are respectively passed through the corresponding central through holes of the traction device 2 on the two fixing plates 3, and then the Kirschner wire fixing devices 5 are installed on the two ends of the Kirschner wire 1; the bolts 4 are loosened, and by adjusting the meshing position between the traction device 2 and the left and right plates of the fixing plate 3, the traction device 2 drives the Kirschner wire 1 to move, and the two Kirschner wires 1 are changed. The relative position between them is determined, and the adjustment distance is controlled by using the scale on the fixing plate 3, so as to achieve the effect of adjusting the length of bone traction and precise control, and then tighten the bolt 4 to re-fix the traction device 2, and finally let the fixing plate 3 clamp the local limb 6, and tighten the fastening bolt 502 of the Kirschner wire fixing device 5 to clamp the fixing plate 3.

[0042] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, technicians familiar with the field may make various corresponding changes and deformations based on the present invention, but these corresponding changes and deformations should all fall within the scope of protection of the claims attached to the present invention.

Claims

1. A continuously adjustable bone traction support, characterized in that: The invention comprises a Kirschner wire (1), a traction device (2) and a fixing plate (3); there are two fixing plates (3), each fixing plate (3) comprises a left plate and a right plate, a continuous tooth groove (302) is provided at the junction of the left and right plates, a gear matched with the continuous tooth groove (302) is provided on the traction device (2), the traction device (2) is arranged at the junction of the left and right plates of the fixing plate (3), the gear is meshed with the left and right plates, the left and right plates of the fixing plate (3) are connected by bolts (4), the Kirschner wire (1) passes through the central through hole of the corresponding traction device (2) on the two fixing plates (3), and Kirschner wire fixing devices (5) are provided at both ends of the Kirschner wire (1); the traction device (2) comprises a sleeve (201) and a baffle (202); the baffle (202) is fixedly connected to both ends of the sleeve (201), the sleeve (201) is connected to the central part of the baffle (202), and the gear is arranged on the outer wall of the sleeve (201); The Kirschner wire fixing device (5) comprises a sleeve (501) and a fastening bolt (502); a threaded hole is provided on the side of the sleeve (501), the threaded hole is vertically connected to the central through hole of the sleeve (501), the inner diameter of the central through hole of the sleeve (501) is adapted to the outer diameter of the Kirschner wire (1), and the fastening bolt (502) is adapted to the threaded hole of the sleeve (501).

2. A continuously adjustable bone distraction support according to claim 1, characterized in that: There are two Kirschner wires (1).

3. The continuously adjustable bone distraction support according to claim 1, characterized in that: There are four traction devices (2).

4. The continuously adjustable bone distraction support according to claim 1, characterized in that: The fixing plate (3) is in the shape of a long plate.

5. The continuously adjustable bone distraction support according to claim 1, characterized in that: The fixing plate (3) is provided with scale lines (301) in the longitudinal direction.

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