Continuous carbon fiber intramedullary nail bending device

Abstract

The utility model discloses a continuous carbon fiber intramedullary nail bending device which comprises a base, a heating mechanism and a bending mechanism. The base is movably connected with a fixing seat for fixing an intramedullary nail; the base is further provided with scale marks used for determining the bending position of the intramedullary nail. The heating mechanism is used for heating the bent position; and the bending mechanism is used for bending the intramedullary nail to a required angle. According to the continuous carbon fiber intramedullary nail bending device, the base, the heating mechanism and the bending mechanism are integrated, and the continuous carbon fiber intramedullary nail can be efficiently and accurately bent through accurate design and control; according to the intramedullary nail bending device, due to the design of the scale marks, the position needing to be bent can be accurately positioned, the heating mechanism can locally heat the bent position, the bending resistance of materials is reduced, the bending mechanism can accurately bend an intramedullary nail to the needed angle, and the machining precision and efficiency are greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of medical equipment technology, and in particular to a continuous carbon fiber intramedullary nail bending device. Background Technology

[0002] An intramedullary nail is an orthopedic internal fixation device used to treat bone injuries such as fractures. It is a long, strip-shaped implant placed within the medullary cavity to fix the fracture site. Its structure typically includes an intramedullary nail rod with a proximal locking screw hole and a decompression plane at its proximal end, extending from the proximal to the distal end. A locking screw positioning hole and a connecting sleeve positioning groove are also located at the proximal end of the intramedullary nail rod.

[0003] Existing intramedullary nails are primarily curved to better adapt to the anatomical structure and biomechanical properties of the human skeleton. Long bones in the human body, such as the femur and tibia, are not completely straight but possess a certain physiological curvature. Pre-bending the intramedullary nail to a similar arc to the bone allows it to better conform to the shape of the medullary cavity, thus providing more stable fixation at the fracture site. A curved intramedullary nail can also distribute stress more evenly, preventing excessive stress concentration at any one point, thereby reducing stress shielding at the fracture ends and promoting fracture healing.

[0004] Traditional methods for bending intramedullary nails often employ mechanical pressure or thermoplastic molding, but these methods present numerous challenges for continuous carbon fiber materials. Mechanical pressure methods may cause internal cracks or fractures in the material, affecting the mechanical properties and biocompatibility of the intramedullary nail; while thermoplastic molding, although suitable for some thermoplastic materials, requires precise control of heating temperature and bending force for continuous carbon fiber intramedullary nails to ensure that the material properties are not compromised.

[0005] Given the aforementioned challenges, there is an urgent need in the market for a device capable of efficiently and precisely bending continuous carbon fiber intramedullary nails. While some bending devices exist for metal intramedullary nails, these devices often fail to meet the specific processing requirements of continuous carbon fiber materials, particularly in terms of heating methods and bending precision control. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies by proposing a continuous carbon fiber intramedullary nail bending device.

[0007] The technical solution of this utility model is: a continuous carbon fiber intramedullary nail bending device, including a base, a heating mechanism and a bending mechanism; a fixing seat for fixing the intramedullary nail is movably connected to the base; the base is also provided with scale lines for determining the bending position of the intramedullary nail; the heating mechanism is used to heat the bending position; the bending mechanism is used to bend the intramedullary nail to the required angle.

[0008] The base is provided with a sliding groove; the fixed seat is slidably and lockably connected to the sliding groove.

[0009] The heating mechanism is a coil heater; the coil of the coil heater is a spring coil.

[0010] The bending mechanism includes an angled disc fixed to a base; a handle is hinged at the center of the angled disc; and the handle has a positioning groove that mates with an intramedullary nail.

[0011] The handle is provided with a clearance groove at the corresponding angle plate; the angle plate is provided with an arc-shaped groove; and a connecting post is provided in the arc-shaped groove to connect the outer and inner sides of the handle.

[0012] The outer side of the handle is provided with an indicator groove for reading the angle dial at the corresponding scale line.

[0013] The fixation base is provided with a fixation groove that mates with the intramedullary nail.

[0014] The present invention has the following beneficial effects by adopting the above technical solution: (1) The present invention integrates a base, a heating mechanism and a bending mechanism. Through precise design and control, it can achieve efficient and precise bending of continuous carbon fiber intramedullary nails. The design of the scale line can accurately locate the position to be bent. The heating mechanism can locally heat the bending position and reduce the bending resistance of the material. The bending mechanism can accurately bend the intramedullary nail to the required angle, which greatly improves the processing accuracy and efficiency.

[0015] (2) This utility model uses a spring coil heater, which is relatively short and only heats the bending part of the continuous carbon fiber intramedullary nail. This local heating method can avoid unnecessary thermal damage to other parts of the intramedullary nail, and at the same time, it can more accurately control the heating area to ensure that the material of the bending part is shaped at a suitable temperature. Moreover, a heater with built-in temperature measurement and temperature control function can be connected to the spring coil to monitor the heating temperature in real time and make precise control. This can not only prevent the intramedullary nail material performance from deteriorating due to excessive temperature, such as the mechanical properties of carbon fiber reinforced polyether ether ketone being damaged, but also avoid the situation where the temperature is too low and it cannot be effectively bent, thereby ensuring the safety and reliability of the bending process, extending the service life of the intramedullary nail, and reducing the medical risks caused by improper bending.

[0016] (3) The sliding groove on the base of this utility model and the fixed seat design that can be locked and slidably connected make it easy for the operator to adjust the position of the intramedullary nail and make it easy to accurately align the bending position; in addition, the design of the angle plate, handle and indicator groove makes the operator able to read the bending angle intuitively and easily complete the bending operation, which greatly improves the convenience of operation and user experience.

[0017] (4) The fixing groove design on the fixing seat of this utility model can stably fix the intramedullary nail, prevent it from sliding or falling off during bending, and ensure the safety of processing. Attached Figure Description

[0018] To make the contents of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 This is a top view of the present invention.

[0021] Figure 3 This is a front view of the present invention.

[0022] Figure 4 This is a perspective view of the present invention.

[0023] The labels in the attached diagram are:

[0024] 1. Base; 2. Heating mechanism; 3. Bending mechanism; 3. Angle plate; 3-1. Handle; 3-2. Positioning groove; 3-3. Clearance groove; 3-4. Arc groove; 3-5. Connecting column; 3-6. Indicator groove; 3-7. Fixing seat; 4. Scale line; 5. Detailed Implementation

[0025] (Example 1)

[0026] See Figures 1 to 4 This embodiment of a continuous carbon fiber intramedullary nail bending device includes a base 1, a heating mechanism 2, and a bending mechanism 3; a fixing seat 4 for fixing the intramedullary nail is movably connected to the base 1; the base 1 is also provided with a scale line 5 for determining the bending position of the intramedullary nail; the heating mechanism 2 is used to heat the bending position; the bending mechanism 3 is used to bend the intramedullary nail to the required angle.

[0027] Furthermore, a sliding groove is provided on the base 1; the fixing seat 4 is slidably connected to the sliding groove by a locking screw, so as to adjust the position of the fixing seat 4 to determine the position of the intramedullary nail bend.

[0028] Furthermore, the heating mechanism 2 is a coil heater; the coil of the coil heater is a spring coil.

[0029] Furthermore, the bending mechanism 3 includes an angled disc 3-1 fixed at an angle to the base 1; a handle 3-2 is hinged at the center of the angled disc 3-1; the handle 3-2 is provided with a positioning groove 3-3 that cooperates with the intramedullary nail, so as to ensure that the intramedullary nail can be stably fixed when bending, thereby improving the safety of bending.

[0030] Furthermore, the handle 3-2 is provided with a clearance groove 3-4 at the angle plate 3-1; the angle plate 3-1 is provided with an arc groove 3-5; the arc groove 3-5 is provided with a connecting post 3-6 connecting the outer and inner sides of the handle 3-2, so as to ensure that the movement of the handle 3-2 is more stable.

[0031] Furthermore, the outer side of the handle 3-2 is provided with an indicator groove 3-7 for reading at the scale line 5 of the angle disc 3-1, so as to facilitate accurate reading.

[0032] Furthermore, the fixation base 4 is provided with a fixation groove that cooperates with the intramedullary nail to further ensure the stability of the intramedullary nail fixation.

[0033] The continuous carbon fiber intramedullary nail bending device of this embodiment shows significant beneficial effects in improving processing accuracy and efficiency, enhancing material adaptability, improving operational convenience, and ensuring processing safety, providing an efficient, precise, and safe solution for the processing of continuous carbon fiber intramedullary nails.

[0034] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A continuous carbon fiber intramedullary nail bending apparatus, characterized by: The utility model provides a kind of intramedullary nail bending device, including base (1), heating mechanism (2) and bending mechanism (3);The base (1) is movably connected with the fixed seat (4) for fixing intramedullary nail on;The base (1) is also provided with scale line (5) for determining intramedullary nail bending position;The heating mechanism (2) is used to heat at bending position;The bending mechanism (3) is used to bend intramedullary nail to the angle needed.

2. The continuous carbon fiber intramedullary nail bending device according to claim 1, characterized in that: The base (1) is provided with a sliding groove; the fixed seat (4) is slidably connected in the sliding groove.

3. The continuous carbon fiber intramedullary nail bending device of claim 1, wherein: The heating mechanism (2) is a coil heater; the coil of the coil heater is a spring coil.

4. The continuous carbon fiber intramedullary nail bending device of claim 1, wherein: The bending mechanism (3) includes an angle disc (3-1) angularly fixed to the base (1); the center of the angle disc (3-1) is hingedly connected with a handle (3-2); the handle (3-2) is provided with a positioning groove (3-3) matched with the intramedullary nail.

5. The continuous carbon fiber intramedullary nail bending device of claim 4, wherein: The handle (3-2) is provided with an avoiding groove (3-4) corresponding to the angle disc (3-1); the angle disc (3-1) is provided with an arc-shaped groove (3-5); the arc-shaped groove (3-5) is provided with a connecting column (3-6) connecting the outer side and the inner side of the handle (3-2).

6. The continuous carbon fiber intramedullary nail bending device of claim 5, wherein: The outer side of the handle (3-2) is provided with an indicating groove (3-7) for reading corresponding to the scale line (5) of the angle disc (3-1).

7. The continuous carbon fiber intramedullary nail bending device of claim 1, wherein: The fixed seat (4) is provided with a fixed groove matched with the intramedullary nail.

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