Finger fixator for hand surgery microsurgery

Abstract

The invention discloses a finger fixator for hand surgery microsurgery, which comprises a fixing plate 1 with a multi-row hole site design, 9 holes are formed in odd-numbered rows, 10 holes are formed in even-numbered rows, the distance between the holes is 20mm, and the number of rows is 11; the connecting rod 2 is formed by combining a rod 201 and a connecting body 202, and a cylindrical hole 203 with the diameter being 4 mm and the depth being 6 mm is formed in the center of the connecting body; the supporting assembly 3 comprises a supporting rod 301, a connecting piece 302, a hole 303 and a base 304, the base 304 is a cylinder with the diameter of 12 mm and the height of 4 mm, and the circle center of the bottom face of the base 304 coincides with the center of the bottom face of the supporting rod 301; the interlocking screw 4 comprises a rhombic nut 401 and a rhombic bolt 402; the U-shaped ring assembly 5 comprises a U-shaped ring 501 and a nut 502, and threads are arranged on the two sides of the U-shaped ring 501. The whole structure integrates functionality and humanization, the precision and efficiency of surgery operation are improved, the discomfort of a patient is relieved, the psychological safety is enhanced, and the hand surgery microsurgery system is suitable for various complex hand surgery microsurgery scenes and has good clinical application prospects.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of medical auxiliary devices, and particularly relates to a finger fixator for microsurgery of hand surgery. BACKGROUND

[0002] In microsurgery of hand surgery, the operation area is fine, and the distribution of nerves and blood vessels is dense, so high precision and stability are required for surgical instruments and auxiliary devices. Microsurgery of hand surgery is often used to repair broken nerves, blood vessels or tendons, especially in minimally invasive and complex reconstruction surgery. Doctors need to perform long-time and high-precision micro operations in a limited operation space, so the patient's hand must be kept stable and immobile to ensure clear operation field and accurate operation. However, the current intraoperative fixator for hand surgery has problems such as unreasonable structure design, inflexible adjustment, unstable fixation, etc., which seriously restricts the operation effect and patient safety.

[0003] The existing hand surgery fixator mostly uses traditional soft belt binding or hard plate support, which has the problems of single fixing mode and poor adaptability. It is difficult to make individual adjustment according to the thickness and shape of the patient's fingers, resulting in poor fixing effect and causing discomfort or even compression of the uninjured part. The material of some fixators is rigid and lacks breathability, which can easily cause sweating, pressure sores and other complications in the affected part after long-term use, affecting the patient's comfort and postoperative recovery. In addition, the existing fixator is of integral structure and lacks modular design, which makes it difficult to replace parts, increases maintenance cost, and is complicated to operate, inconvenient to adjust during operation, and affects the operation efficiency. Some connection structures have poor stability and are easy to displace under external force, which reduces the operation precision and even brings safety hazards. These technical defects directly affect the operation quality and patient experience, and a new type of finger fixator for microsurgery of hand surgery with reasonable structure, strong adaptability, convenient operation and safety and comfort is needed to meet the growing clinical needs. SUMMARY

[0004] The application aims to solve the above-mentioned problems and provide a finger fixator for microsurgery of hand surgery.

[0005] To solve the above technical problems, the technical scheme provided by the present application is: a hand surgery microsurgery finger fixator, comprising: a fixed plate 1 having a multi-row hole position design, wherein the odd-numbered rows have 9 holes and the even-numbered rows have 10 holes, the hole spacing is 20 mm, and there are 11 rows in total; a connecting rod 2 combined by a rod 201 and a connecting body 202, the connecting body is provided with a cylindrical hole 203 with a diameter of 4 mm and a depth of 6 mm at the center; a support assembly 3 comprising a support rod 301, a connecting piece 302, a hole 303 and a base 304, the base 304 is a cylinder with a diameter of 12 mm and a height of 4 mm, and the center of the bottom surface of the base 304 coincides with the center of the bottom surface of the support rod 301; an interlocking screw 4 comprising a rhombic nut 401 and a rhombic bolt 402, used for stable connection between the connecting rod and the support assembly; a U-shaped ring assembly 5 comprising a U-shaped ring 501 and a nut 502, the U-shaped ring 501 is provided with threads on two edges.

[0006] As an improvement, the fixed plate 1 has a length of 350 mm, a width of 200 mm and a thickness of 12 mm, and a circular hole a with a diameter of 4 mm and a depth of 12 mm is formed on the surface of the fixed plate.

[0007] As an improvement, the connecting rod 2 and the support assembly 3 adopt a foldable structure and are combined with a memory alloy material to closely fit the curve of the patient's hand.

[0008] As an improvement, a groove is formed at the midpoint of the 4 vertical edges of the fixed plate, the groove has a length of 6 mm and a depth of 30 mm, and the long axis direction of the groove is at an angle of 45 degrees with the long axis direction of the fixed plate.

[0009] As an improvement, the U-shaped ring assembly 5 provides multiple specifications and sizes, and through a nut quick locking mechanism, the adaptability and stability of the fixator are further enhanced, and the local compression on the soft tissue is reduced.

[0010] As an improvement, the connecting rod 2 has an edge length of 6 mm, and the semicylindrical hole 203 formed by the combination of the right quadrangular prism 201 and the cylindrical hole 202, the connecting rod 2 is inserted and matched with the groove on the upper surface of the fixed plate 1.

[0011] As an improvement, the right triangular prism 303 of the support rod 301 has a right angle edge length of 6 mm, and the bevel edge is chamfered or rounded.

[0012] As an improvement, the rhombic nut 401 is a quadrangular prism with an edge length of 20 mm and a height of 8 mm, and a cylindrical threaded hole 403 with a diameter of 4 mm and a depth of 8 mm is formed at the center of the quadrangular prism.

[0013] As an improvement, the rhombic bolt 402 is composed of a quadrangular prism 404 and a threaded cylinder 405, the quadrangular prism 404 has a side length of 20 mm and a height of 8 mm, and a threaded cylinder 405 with a diameter of 4 mm and a height of 18 mm is arranged at the center of the quadrangular prism 404, the threaded cylinder 405 is provided with a thread at the upper end with a length of 8 mm, and the lower end is connected with the quadrangular prism 404 and the centers of the two coincide.

[0014] Compared with the prior art, the hand surgery microsurgery finger fixator provided by the application has the advantages of reasonable structure design, flexible adjustment, stable fixation, convenient operation, safety and comfort, and the like. Through the multi-row hole design of the fixing plate and the selection of multiple specifications of the U-shaped ring assembly, personalized adjustment can be performed according to the specific morphology of the patient's finger, and the adaptability and use flexibility of the fixator are significantly improved; the connecting rod and the support assembly adopt a foldable structure and a memory alloy material, can closely fit the patient's hand curve, and realize customized fixation; the interlocking screw adopts a design in which a rhombic nut is matched with a rhombic bolt, thereby enhancing the stability of the connection and the safety of the operation; the 45-degree angle groove structure arranged on the fixing plate not only improves the stability of the overall device, but also optimizes the distribution of the center of gravity, thereby ensuring firm fixation during the operation; the edges of each component are chamfered or rounded, thereby effectively avoiding the risk of scratching and improving the operation safety of the patient and medical staff; the modular design facilitates quick disassembly and replacement, thereby reducing maintenance costs and prolonging the service life; the overall structure takes into account functionality and humanization, thereby improving the precision and efficiency of the operation, reducing the discomfort of the patient, enhancing the psychological safety, being applicable to various complex hand surgery microsurgery scenes, and having good clinical application prospects. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a schematic view of a hand surgery microsurgery finger fixator of the application.

[0016] Figure 2 is a schematic view of a connecting rod device of a hand surgery microsurgery finger fixator of the application.

[0017] Figure 3 is a schematic view of a support assembly of a hand surgery microsurgery finger fixator of the application.

[0018] Figure 4 is a schematic view of an interlocking screw of a hand surgery microsurgery finger fixator of the application.

[0019] Figure 5 is a schematic view of a U-shaped ring assembly of a hand surgery microsurgery finger fixator of the application.

[0020] As shown in the figure: 1, fixed plate; 2, connecting rod; 3, support assembly; 4, interlocking screw; 5, U-shaped ring assembly; 201, rod; 202, connecting body; 203, hole a; 301, support rod; 302, connecting piece; 303, hole b; 304, base; 401, rhombic nut; 402, rhombic bolt; 403, cylindrical threaded hole; 404, quadrangular prism; 405, cylinder; 501, U-shaped ring; 502, nut. DETAILED DESCRIPTION

[0021] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "inner", "outer", "center" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation configuration and operation, therefore cannot be understood as a limitation on the present application.

[0022] In the description of the present application, it should be understood that unless otherwise explicitly specified and limited, the terms "provided with", "mounted", "connected", "linked" and the like should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the communication between the two elements inside. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0023] The present application will be further described in detail below with reference to the accompanying drawings.

[0024] 1. Structure adaptation and fixed efficiency improvement

[0025] Fixed plate 1 and U-shaped ring assembly 5

[0026] Combined with the Figure 1 - attached Figure 5 , a plurality of openings are designed on the fixed plate 1, and the included angle between the connecting lines of the holes and the horizontal reference line is 60°, which ensures the fixed distance between the holes. This design provides more fixing options through the distribution of odd and even hole positions, which can accurately fix the patient's fingers and improve the fixing efficiency.

[0027] Combined with the Figure 1 - attached Figure 5 , the U-shaped ring 501 provides an adjustable fixing method through the combination with the nut 502, further enhancing the adaptability and flexibility of the fixator. In addition, this invention does not require a complex adjustment process, improving the fixing efficiency.

[0028] 2. Enhance intraoperative stability

[0029] Fixed rod 1, connecting rod 2 and base 304

[0030] Combination of attachments Figure 1 Combination of attachments Figure 5 , the fixed plate is equipped with grooves at specific angles, especially those at 45° to the long and wide edges of the plate, which significantly enhances the stability of the device. In addition, the positions of these grooves are scientifically laid out to avoid areas with dense openings, ensuring that the functional integrity of the device is maintained. At the same time, the use of specific materials in the base 304 helps to lower the center of gravity of the device, further enhancing overall stability, which is crucial for surgical environments that require long-term fixation operations

[0031] U-shaped ring 501: The U-shaped ring assembly 501 of the present invention provides three specifications, which can adapt to different thicknesses of patient's fingers, ensuring firm fixation during surgery. With the quick fitting mechanism of the U-shaped ring 501 and the nut 502, doctors can one-key lock according to the size of the patient's fingers, effectively avoiding the interference caused by finger movement during surgery. This design simplifies the fixation process, reduces the adjustment time during surgery, and reduces the local pressure of the fixation components on soft tissue through uniform stress distribution, ensuring the accuracy and safety of surgical operations.

[0032] 3. Optimize operation convenience

[0033] Interlocking screw 4

[0034] Combination of attachments Figure 1 Combination of attachments Figure 5 , the diamond-shaped nut 401 and diamond-shaped bolt 402 of the interlocking screw are designed with diamond-shaped blocks, which significantly increase the contact area between the doctor's hand and the screw, making the disassembly of the connecting rod 2 and the support assembly 3 more efficient and stable. In addition, the diamond-shaped block design reduces the risk of sliding during operation, improving the efficiency of the surgical process. At the same time, this design also enhances the comfort and safety of the operation, ensuring the accuracy and reliability of the surgical operation.

[0035] 4. Improve adaptability and ease of use

[0036] Connecting rod 2 and support rod 301

[0037] Combination of attachments Figure 1 Combination of attachments Figure 5 , the connecting rod 2 and the support rod 301 of the present invention are foldable, which makes them flexible to adapt to different angles and positions during surgery, thereby enhancing the applicability of the device. In the construction of the support leg, the perforated part of the connecting rod 2 and the support rod 301 is magnetized before leaving the factory, which makes them easily attract the interlocking screw 4. Such design greatly simplifies the process of doctors installing the entire fixator, making it easier for doctors to install the entire device.

[0038] 5. Improved safety

[0039] U-ring assembly 5, connecting rod 2 and support assembly 3

[0040] Combining the attached Figure 1 — attached Figure 5 The depth of the U-ring 501 inserted into the hole is 12mm, and the thread depth matches the hole depth of the fixing plate 1 by 12mm, ensuring that the U-ring is completely embedded in the hole after the nut 502 is tightened, avoiding the exposed thread scratching the patient's fingers, improving the safety of the patient and the doctor.

[0041] The design of the connecting rod 2 and the support assembly 3 also fully considers safety. The side length of the connecting rod 2 is 6mm, and the smaller cross-sectional dimension 6mm side length of the semicircular cylinder 203 formed by the combination of the right quadrangular prism 201 and the cylinder 202 reduces the possibility of sharp angles, further reducing the risk of friction and scratches with the doctor's hands or the patient's skin. The right angle side length of the triangular prism 303 of the support rod 301 is 6mm, and the smaller right angle side length design cooperates with the isosceles triangle structure, and the bevel edge is chamfered or rounded, which can avoid accidental scratches of the patient during the operation, improving the safety of the patient and the doctor.

[0042] 6. Reduced maintenance costs

[0043] Durable materials and modular design: The selected materials of the invention are resistant to high-temperature disinfection and corrosion, ensuring hygiene and safety and prolonging product life, reducing replacement frequency and maintenance costs. At the same time, the modular design of the support assembly 3 simplifies the process of technical updating and upgrading, making it easy to replace and upgrade components, avoiding large-scale system changes, reducing the risk of replacing the entire device due to technical iteration, and further reducing maintenance costs.

[0044] In the implementation process, first, the fixed plate 1 is placed in the operation area, the size of which is 350mm long, 200mm wide, and 12mm thick, and the surface is provided with a multi-row hole structure composed of a plurality of 4mm diameter, 12mm deep round holes, wherein the odd rows are provided with 9 holes, the even rows are provided with 10 holes, the hole spacing is 20mm, there are 11 rows, and the position of the U-shaped ring assembly 5 can be flexibly adjusted according to the length and thickness of the patient's fingers. A groove with a side length of 6mm and a depth of 30mm is formed at the midpoint of the four vertical edges of the fixed plate, and the long axis direction of the groove is at an angle of 45 degrees with the long axis of the fixed plate, which is used for inserting the connecting rod 2. The connecting rod 2 is composed of a rod 201 and a connecting body 202, and the center of the connecting body is provided with a cylindrical hole 203 with a diameter of 4mm and a depth of 6mm. At the same time, the connecting rod as a whole adopts a regular quadrangular prism combined structure with a side length of 6mm and a semicylindrical structure, and is stably inserted and matched with the fixed plate through the groove. The support assembly 3 is further extended to the lower part of the patient's hand through the connecting rod, including a support rod 301, a connecting piece 302, a hole 303 and a base 304. The base is a cylindrical body with a diameter of 12mm and a height of 4mm. The right angle edge of the support rod three-prism structure is 6mm. The bevel edges are chamfered or rounded to avoid scratching the patient during the operation. The support assembly as a whole adopts a foldable structure combined with a memory alloy material, so that it can closely fit the curve of the patient's hand and realize personalized support. The interlocking screw 4 is used to connect the connecting rod 2 and the support assembly 3, which includes a rhombic nut 401 and a rhombic bolt 402. The rhombic nut is a quadrangular prism with a side length of 20mm and a height of 8mm, and a cylindrical threaded hole 403 with a diameter of 4mm and a depth of 8mm is arranged at the center. The rhombic bolt is composed of a quadrangular prism 404 with the same size and a cylindrical body 405 with a thread. The cylindrical body has a diameter of 4mm and a total height of 18mm. The upper end of 8mm is provided with a thread. The two are stably connected. The U-shaped ring assembly 5 includes a U-shaped ring 501 and a nut 502. The U-shaped ring is provided with a thread at both ends. The appropriate specification can be selected according to the thickness of the fingers of different patients, and the nut is screwed after being inserted into the corresponding hole of the fixed plate to realize quick locking, so as to accurately fix the patient's fingers.

[0045] The above describes the present application and its embodiments, which are not limited, and the drawings shown are only one of the embodiments of the present application, and the actual structure is not limited thereto. In general, if a person skilled in the art is inspired thereby, without departing from the purpose of the present application, without creative design, similar structure modes and examples to the technical scheme should belong to the protection scope of the present application.

Claims

1. A hand surgery microsurgery finger fixator, characterized in that, It comprises: A fixed plate (1) with multiple rows of hole position design, where the odd rows have 9 holes and the even rows have 10 holes, with a hole spacing of 20mm, a total of 11 rows; A connecting rod (2) composed of a rod (201) and a connecting body (202), the connecting body (202) is provided with a cylindrical hole (203) with a diameter of 4mm and a depth of 6mm in the center; A support assembly (3) including a support rod (301), a connecting piece (302), a hole b (303), and a base (304), the base (304) is a cylinder with a diameter of 12mm and a height of 4mm, the center of the bottom surface coincides with the center of the bottom surface of the support rod (301); An interlocking screw (4) including a rhombic nut (401) and a rhombic bolt (402) for stable connection between the connecting rod and the support assembly; A U-shaped ring assembly (5) including a U-shaped ring (501) and a nut (502), the U-shaped ring (501) has threads on both edges.

2. A microsurgical finger fixator for hand surgery according to claim 1, characterized in that The fixed plate (1) is 350mm long, 200mm wide, and 12mm thick, and the fixed plate (1) surface is provided with a circular hole with a diameter of 4mm and a depth of 12mm.

3. A microsurgical finger fixator for hand surgery as claimed in claim 1, wherein, The connecting rod (2) and the support assembly (3) adopt a foldable structure and are combined with a memory alloy material to closely fit the patient's hand curve.

4. A microsurgical finger fixator for hand surgery as claimed in claim 1, wherein, Grooves are opened at the midpoints of the 4 vertical edges of the fixed plate, the grooves are 6mm long and 30mm deep, and the long axis direction of the grooves is at a 45 degree angle to the long axis direction of the fixed plate.

5. A microsurgical finger fixator for hand surgery as claimed in claim 1, wherein, The U-shaped ring assembly (5) provides multiple specifications and sizes, and through the nut quick locking mechanism, further enhances the adaptability and stability of the fixator, while reducing local pressure on soft tissue.

6. A microsurgical finger fixator for hand surgery as claimed in claim 4, wherein, The edge length of the connecting rod (2) is 6mm, and the semicircular cylinder (203) formed by the combination of the right quadrangular prism (201) and the cylinder (202), the connecting rod (2) is inserted into the groove on the fixed plate (1).

7. A microsurgical finger fixator for hand surgery as claimed in claim 1, wherein, The right triangular prism (303) of the support rod (301) has a right angle edge length of 6mm, and the bevel edge is chamfered or rounded.

8. A microsurgical finger fixator for hand surgery as claimed in claim 1, wherein, The rhombic nut (401) is a quadrangular prism with one side length of 20mm and a height of 8mm, and a cylindrical threaded hole (403) with a diameter of 4mm and a depth of 8mm is provided at the center of the quadrangular prism.

9. A microsurgical finger fixator for hand surgery as claimed in claim 1, wherein, The rhombic bolt (402) is composed of a quadrangular prism (404) and a threaded cylinder (405), the quadrangular prism (404) has a side length of 20mm and a height of 8mm, a threaded cylinder (405) with a diameter of 4mm and a height of 18mm is provided at the center of the quadrangular prism (404), the upper end of the threaded cylinder (405) is provided with a thread of 8mm long, and the lower end is connected with the quadrangular prism (404) and the centers coincide.

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