A temporary traction device for calcaneus before surgery

Abstract

The present application discloses a temporary traction device for calcaneus surgery, comprising a U-shaped traction rod, a U-shaped seat, a V-shaped plate, a cylinder, a support assembly, and a traction magnetic control assembly. The present application has a reasonable structure, and is convenient for adjusting the magnetic attraction strength of the electromagnet to the weight column by operating a knob rheostat, thereby realizing the function of magnetically controlling the traction force, facilitating the gradual application of traction force, and is easy to adjust and highly safe to operate. The weight column is light and not sufficient to achieve a traction effect, which facilitates supporting the inclined top end of the U-shaped traction rod, avoiding the problem of the U-shaped traction rod falling or shaking and affecting the traction effect, greatly alleviating the patient's pain and facilitating subsequent surgical treatment.

Description

Technical Field

[0001] The present application relates to the technical field of calcaneal traction, and in particular to a temporary calcaneal preoperative traction device. Background Art

[0002] Calcaneal tuberosity traction is a very commonly used bone traction technique, mainly used for tibial plateau fractures, unstable fractures, open tibial fractures, and comminuted fractures. A steel needle is passed through the calcaneus from the inside to the outside through the midpoint of the line connecting the tip of the ankle and the posterior inferior edge of the heel, and traction weight is applied through the steel needle.

[0003] Existing calcaneal traction devices use a traction bow and a weight to apply traction force. However, the traction force is difficult to adjust gradually and flexibly, which can cause initial pain and weight loss for patients. Furthermore, the traction bow and weight are suspended in mid-air during use and, if not fixed, are susceptible to external force and can easily shake. This can lead to serious secondary injuries to the injured area due to excessive traction force. Therefore, a temporary calcaneal traction device is proposed to address these issues. Summary of the Invention

[0004] The purpose of the present invention is to provide a temporary traction device for calcaneus surgery in order to solve the above problems.

[0005] The present invention achieves the above-mentioned object through the following technical solutions: a temporary traction device for calcaneus preoperatively, comprising a U-shaped traction rod, a U-shaped seat, a V-shaped plate, a cylinder, a support assembly and a traction magnetic control assembly, wherein both ends of the U-shaped traction rod are provided with needle end fixing holes, and a rope end connector is installed in the middle of the U-shaped traction rod, the U-shaped seat is installed on one side wall of the rope end connector, an end surface of one end of the V-shaped plate is provided with a placement groove, and an electric control box and a cylinder are sequentially installed on the bottom plate of the V-shaped plate;

[0006] The supporting auxiliary assembly includes a large ball, a return spring, a positioning bolt, a nut and a screw. The large ball rolls and engages in the engagement hole, and a sliding hole is provided on the surface of the large ball. The screw is in sliding contact with the sliding hole, and one end of the screw is movably connected to the U-shaped seat through a pin. The return spring is located between a port on one side of the sliding hole and the other end of the screw. The end face of one end of the positioning bolt is in tight contact with a corresponding portion of the surface of the large ball.

[0007] The traction magnetic control component includes a traction rope, a weight column block, a small ball and an electromagnet. The two ends of the traction rope are respectively installed on the rope end connector and the top of the weight column block. The traction rope part is in contact with the single-groove pulley. The annular surface of the weight column block is in rolling contact with the inner wall of the cylinder through the small ball. The electromagnet is installed in the mouth of the cylinder, and the electromagnet is located directly below the bottom end face of the weight column block. The electromagnet is electrically connected to the knob variable resistance switch through a conductive wire.

[0008] Preferably, the weight column block is made of iron, and four small balls are equidistantly connected in a circular manner on the upper and lower ends of the annular surface of the weight column block.

[0009] Preferably, the connecting hole is opened at the upper end of one side plate of the V-shaped plate, and one side of the connecting hole is connected to the corresponding side wall of the V-shaped plate through a screw hole, and the screw hole and the positioning bolt are threadedly connected to each other.

[0010] Preferably, a return spring is sleeved on the screw rod, and a nut is threadedly mounted on the screw rod.

[0011] Preferably, the size of the needle end fixing hole is consistent with the size of the outer end of the needle body that is externally fixed at the calcaneus.

[0012] Preferably, the single-groove pulley is rotatably mounted in the mounting groove.

[0013] Preferably, a battery and electronic control elements are installed in the electric control box, and a side wall of the electric control box is fixedly connected to the knob variable resistance switch, and a power plug wire for connecting to an external power socket is led out from the electric control box.

[0014] Preferably, a through hole is provided in the middle of the top end surface of the cylinder, and a traction rope portion passes through the through hole.

[0015] The beneficial effects of the present invention are: it is convenient to adjust the magnetic attraction strength of the electromagnet to the weight column block by operating the knob rheostat, realize the function of magnetic control to adjust the traction force, facilitate gradual force traction, and the regulation is convenient, the operation is highly safe, and the weight column block is light and not enough to achieve the traction effect, which is convenient for supporting the inclined top end of the U-shaped traction rod, avoiding the problem of the U-shaped traction rod falling or shaking and affecting the traction effect, greatly alleviating the patient's pain, and facilitating subsequent surgical treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0017] Figure 1 A three-dimensional diagram of the overall structure of an embodiment of the present application;

[0018] Figure 2 A side view of the overall structure of an embodiment of the present application;

[0019] Figure 3 This is a schematic diagram of the structure of the traction magnetic control component of an embodiment of the present application.

[0020] In the figure: 1. U-shaped pulling rod; 2. Needle end fixing hole; 3. Rope end connector; 4. U-shaped seat; 5. Pull rope; 6. V-shaped plate; 7. Single-groove pulley; 8. Placement groove; 9. Connecting hole; 10. Large ball; 11. Sliding hole; 12. Return spring; 13. Cylinder; 14. Screw hole; 15. Positioning bolt; 16. Electric control box; 17. Knob variable resistance switch; 18. Screw; 19. Nut; 20. Weight column block; 21. Small ball; 22. Electromagnet. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0022] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0023] In this application, terms such as "upper," "lower," "left," "right," "front," "back," "top," "bottom," "inner," "outer," "center," "vertical," "horizontal," "transverse," and "longitudinal" indicate positions or locations based on the positions or locations shown in the accompanying drawings. These terms are primarily intended to better describe this application and its embodiments and are not intended to limit the devices, elements, or components indicated to having a specific orientation, or to being constructed or operated in a specific orientation.

[0024] Furthermore, some of the above terms may be used to express other meanings besides indicating a position or location. For example, the term "on" may also be used to indicate a dependency or connection in certain circumstances. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0025] Furthermore, the terms "installed," "disposed," "provided with," "connected," "connected," and "socketed" should be interpreted broadly. For example, they can refer to fixed connections, removable connections, or integral structures; mechanical connections or electrical connections; direct connections, indirect connections through an intermediary, or internal communication between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0026] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0027] See also Figure 1-3 As shown, a temporary traction device for calcaneal surgery includes a U-shaped traction rod 1, a U-shaped seat 4, a V-shaped plate 6, a cylinder 13, a support assembly, and a traction magnetic control assembly. The U-shaped traction rod 1 is provided with a needle end fixing hole 2 on both ends of the side, and a rope end connector 3 is installed in the middle of the U-shaped traction rod 1. The U-shaped seat 4 is installed on the side wall of the rope end connector 3. The end surface of the V-shaped plate 6 is provided with a placement groove 8, and the bottom plate of the V-shaped plate 6 is sequentially installed with an electric control box 16 and a cylinder 13.

[0028] The supporting assembly includes a large ball 10, a return spring 12, a positioning bolt 15, a nut 19 and a screw 18. The large ball 10 is rolled and connected in the connection hole 9, and a sliding hole 11 is opened on the surface of the large ball 10. The screw 18 is in sliding contact with the sliding hole 11, and one end of the screw 18 is movably connected to the U-shaped seat 4 through a pin. The return spring 12 is located between the end of the sliding hole 11 and the other end of the screw 18. The end face of one end of the positioning bolt 15 is in tight contact with the corresponding part of the surface of the large ball 10.

[0029] The traction magnetic control component includes a traction rope 5, a weight column block 20, a small ball 21 and an electromagnet 22. The two ends of the traction rope 5 are respectively installed on the rope end connector 3 and the top of the weight column block 20. Part of the traction rope 5 is in contact with the single-groove pulley 7. The annular surface of the weight column block 20 is in rolling contact with the inner wall of the cylinder 13 through the small ball 21. The electromagnet 22 is installed in the mouth of the cylinder 13, and the electromagnet 22 is located directly below the bottom end face of the weight column block 20. The electromagnet 22 is electrically connected to the knob variable resistance switch 17 through a conductive wire.

[0030] The weight column block 20 is made of iron, and four small balls 21 are equidistantly connected in a circular manner on the upper and lower ends of the annular surface of the weight column block 20; the connecting hole 9 is opened at the upper end of one side plate of the V-shaped plate 6, and one side of the connecting hole 9 is connected to the corresponding side wall of the V-shaped plate 6 through a screw hole 14, and the screw hole 14 and the positioning bolt 15 are threadedly connected to each other; the screw 18 is provided with a reset spring 12, and a nut 19 is threadedly installed on the screw 18; the size of the needle end fixing hole 2 is consistent with the size of the outer end of the needle body fixed externally at the calcaneus; the single-groove pulley 7 is rotatably installed in the placement groove 8; the battery and electronic control components are installed in the electric control box 16, and the side wall of one side of the electric control box 16 is fixedly connected to the knob variable resistance switch 17, and a power plug line for an external power socket is led out from the electric control box 16; a through hole is opened in the middle position of the top end face of the cylinder 13, and a part of the traction rope 5 passes through the through hole.

[0031] When the present application is used, after the doctor has fixed the needle body at the corresponding position of the calcaneus and needs to install the traction device, the medical staff first fixes the device at the end of the bed through the V-shaped plate 6, and then puts the two needle end fixing holes 2 on the deformable U-shaped traction rod 1 onto the corresponding outer ends of the needle;

[0032] At this time, the medical staff adjusts the state of the U-shaped traction rod 1 according to the traction direction angle. When the adjustment is completed, the medical staff turns the knob rheostat 17 with the other hand and turns on the power supply, so that the electromagnet 22 is energized to generate a magnetic field, achieving the effect of magnetically attracting the weight column 20 downward, thereby facilitating the adjustment of the magnetic attraction strength of the electromagnet 22 to the weight column 20 by operating the knob rheostat 17, realizing the function of magnetically controlling the adjustment of the traction force, and the regulation is convenient and the operation is safe. In addition, the weight column 20 is light in weight and is not enough to achieve the traction effect.

[0033] When the above operation is completed, the medical staff screws the nut 19 on the screw 18 to move it to the other side of the sliding hole 11, and tightens the positioning bolt 15 to fix the large ball 10 in the connecting hole 9, so as to facilitate the support of the inclined top end of the U-shaped traction rod 1, so that the needle body and the U-shaped traction rod 1, the screw 18 and the bed surface form a stable support structure, avoiding the problem of the U-shaped traction rod 1 falling or shaking and affecting the traction effect, greatly alleviating the patient's pain and facilitating subsequent surgical treatment.

[0034] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A temporary traction device for calcaneus surgery, characterized by: It comprises a U-shaped pulling rod (1), a U-shaped seat (4), a V-shaped plate (6), a cylinder (13), an auxiliary support component and a pulling magnetic control component, wherein the sides of both ends of the U-shaped pulling rod (1) are provided with a needle end fixing hole (2), and a rope end connector (3) is installed in the middle of the U-shaped pulling rod (1), the U-shaped seat (4) is installed on a side wall of the rope end connector (3), an end surface of one end of the V-shaped plate (6) is provided with a placement groove (8), and an electric control box (16) and a cylinder (13) are installed in sequence on the bottom plate body of the V-shaped plate (6); The supporting auxiliary component includes a large ball (10), a return spring (12), a positioning bolt (15), a nut (19) and a screw (18). The large ball (10) is rollingly connected in the connection hole (9), and a sliding hole (11) is provided on the surface of the large ball (10). The screw (18) is in sliding contact with the sliding hole (11), and one end of the screw (18) is movably connected to the U-shaped seat (4) through a pin shaft. The return spring (12) is located between a port on one side of the sliding hole (11) and the other end of the screw (18). The end face of one end of the positioning bolt (15) is in tight contact with a corresponding portion of the surface of the large ball (10). The traction magnetic control component comprises a traction rope (5), a weight column block (20), a small ball (21) and an electromagnet (22). The two ends of the traction rope (5) are respectively mounted on the rope end connector (3) and the top of the weight column block (20). The traction rope (5) is in contact with the single-groove pulley (7). The annular surface of the weight column block (20) is in rolling contact with the inner wall of the cylinder (13) through the small ball (21). The electromagnet (22) is mounted in the mouth of the cylinder (13) and is located directly below the bottom end surface of the weight column block (20). The electromagnet (22) is electrically connected to the knob variable resistance switch (17) through a conductive wire.

2. The temporary traction device for calcaneus surgery according to claim 1, characterized in that: The weight column block (20) is made of iron, and four small balls (21) are equidistantly connected in a circular manner on the upper and lower ends of the annular surface of the weight column block (20).

3. The temporary traction device for calcaneus surgery according to claim 1, characterized in that: The connecting hole (9) is opened at the upper end of one side plate of the V-shaped plate (6), and one side of the connecting hole (9) is communicated with the corresponding side wall of the V-shaped plate (6) through a screw hole (14), and the screw hole (14) and the positioning bolt (15) are threadedly connected to each other.

4. The temporary traction device for calcaneus surgery according to claim 1, characterized in that: A return spring (12) is sleeved on the screw rod (18), and a nut (19) is threadedly mounted on the screw rod (18).

5. The temporary traction device for calcaneus surgery according to claim 1, characterized in that: The size of the needle end fixing hole (2) is consistent with the size of the outer end of the needle externally fixed at the calcaneus.

6. The temporary traction device for calcaneus surgery according to claim 1, characterized in that: The single-groove pulley (7) is rotatably mounted in the placement groove (8).

7. The temporary traction device for calcaneus surgery according to claim 1, characterized in that: The electric control box (16) is equipped with a battery and electric control elements, and a side wall of the electric control box (16) is fixedly connected to the knob variable resistance switch (17). A power plug line for connecting to an external power socket is led out of the electric control box (16).

8. The temporary traction device for calcaneus surgery according to claim 1, characterized in that: A through hole is provided in the middle of the top end surface of the cylinder (13), and a portion of the traction rope (5) passes through the through hole.

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