Miniature control wire for surgical mechanical forceps

Abstract

The utility model relates to a miniature control wire for surgical mechanical forceps, which comprises a conductor and a heat-shrinkable sleeve, the conductor is a copper wire with the diameter of 0.025 mm, and the surface of the copper wire is provided with a silver-plated layer to form a silver-plated copper wire; the silver-plated copper wire is sleeved with the heat-shrinkable sleeve, and the end, exposed out of the heat-shrinkable sleeve, of the silver-plated copper wire is coated with tin mixed liquid to form a tin-coated part. According to the design, a copper wire with the diameter of only 0.025 mm is adopted as a conductor, and silver is plated on the surface of the copper wire to form a silver-plated copper wire. Due to the tiny outer diameter design, the electric wire is higher in flexibility in a complex minimally invasive surgery, can effectively adapt to a narrow surgery operation space, meets the requirement for precise operation, and improves the operation accuracy of surgical instruments.

Description

Technical Field

[0001] The utility model relates to a micro-control electric wire for surgical mechanical forceps. Background Art

[0002] With the widespread adoption of minimally invasive surgery in the surgical field, the development of surgical robots has become a key focus for improving surgical quality and precision. While existing surgical robotic systems can improve operational stability and reduce surgical time, they are still limited by control accuracy and structural design for certain delicate operations. This presents significant shortcomings, particularly in the face of the demands for miniaturization and reliability.

[0003] Current designs for controlling micro-surgical forceps typically use conventionally sized wires, which lack operational flexibility in minimally invasive surgical instruments and cannot adequately meet the demands of extremely delicate operations. Furthermore, the surface treatment and protective coating of the wires lack stability and durability, which can lead to unstable signal transmission and affect the precise control of surgical instruments. Especially in the context of the increasingly significant trend toward miniaturization, traditional wires struggle to adapt to designs requiring tiny outer diameters and are easily squeezed and deformed during installation or transportation, impacting their ultimate clinical effectiveness. Utility Model Content

[0004] The purpose of the utility model is to provide a micro-control wire for surgical mechanical forceps, which can improve the operational flexibility and reliability of surgical instruments.

[0005] The purpose of this utility model is achieved in this way:

[0006] A micro-control wire for surgical mechanical forceps includes a conductor and a heat shrink tubing. The conductor is a copper wire with a diameter of 0.025 mm. The surface of the copper wire is provided with a silver-plated layer to form a silver-plated copper wire. The heat shrink tubing is sleeved on the silver-plated copper wire. The end of the silver-plated copper wire exposed from the heat shrink tubing is coated with a tin mixture to form a tin-coated portion.

[0007] This design uses a copper wire with a diameter of only 0.025mm as a conductor, and the surface of the copper wire is silver-plated to create a silver-plated copper wire. Such a small outer diameter design makes the wire more flexible during complex minimally invasive surgery, effectively adapting to the narrow surgical operating space, meeting the requirements of precise operation, and improving the operating accuracy of surgical instruments.

[0008] Silver plating on the copper wire not only enhances the conductor's conductivity but also improves its anti-oxidation properties, extending the life of the wire. The silver plating design enables the wire to maintain good conductivity under high-frequency use, ensuring stable control of surgical instruments.

[0009] The silver-plated copper wire at the end of the wire is exposed through the heat-shrink tubing and coated with a tin mixture to form a tinned portion. This design ensures stable signal transmission when the conductor is connected, while also facilitating reliable connection with other electronic components, reducing the risk of poor contact and improving the reliability of the wire connection.

[0010] The design of using heat shrink tubing to cover the silver-plated copper wire not only protects the wire from the external environment, but also ensures the structural strength of the wire.

[0011] This design utilizes laser stripping and tinning technology to precisely control the tinning length of the conductor ends, meeting stringent production and processing requirements. This design not only improves the controllability of the production process but also facilitates mass production, reducing manufacturing costs and improving production efficiency.

[0012] The purpose of the utility model can also be solved by the following technical measures:

[0013] Furthermore, it also includes an outer sheath, which is made of soluble polytetrafluoroethylene material, and the outer diameter of the outer sheath is 0.42-0.48 mm. The outer sheath is detachably placed on the end of the silver-plated copper wire, and the outer sheath wraps the tin-coated part.

[0014] The outer sheath wraps around the tinned portion, effectively preventing wear and damage to the wire ends. The PTFE material, with its excellent abrasion and corrosion resistance and tensile strength, helps protect the tinned portion from mechanical damage during transportation and installation, enhancing the durability and stability of the wire.

[0015] The outer diameter of the outer sheath is controlled between 0.42-0.48mm. This design not only maintains the miniaturization characteristics of the wire, but also adds an extra layer of protection for the wire, enabling it to be flexibly operated in a narrow surgical environment without affecting the bending performance and flexibility of the wire, ensuring the requirements of precise operation.

[0016] The outer sheath is removably placed over the end of the silver-plated copper wire, allowing for flexible installation and removal during practical applications. This removable design allows medical staff to flexibly adjust the length and exposed portion of the wire to suit specific surgical instruments, facilitating maintenance and replacement, and enhancing the convenience of instrument use.

[0017] The PTFE outer sheath not only protects the tinned portion from physical damage but also blocks electromagnetic interference to a certain extent, ensuring stable signal transmission. PTFE's excellent insulation and heat resistance make it suitable for maintaining cable stability in complex surgical environments, contributing to the precise signal control of surgical instruments.

[0018] The outer sheath, made of soluble PTFE, not only has excellent biocompatibility but also allows for easy dissolution in special circumstances, meeting the safety and non-toxicity requirements of medical devices. Furthermore, the PTFE outer sheath can be easily decomposed during postoperative treatment, reducing the difficulty of medical waste disposal and complying with environmental protection requirements.

[0019] Furthermore, the tin mixture contains 3% silver, 0.5% copper and 96.5% tin.

[0020] The addition of 3% silver significantly improves the conductivity of the tin mixture. Silver's high conductivity enables stable, low-resistance signal transmission across the tinned portion during connection, ensuring high sensitivity during use and more precise and reliable control of surgical instruments.

[0021] The silver and copper components in this ratio effectively improve the wettability of the tin mixture, making it easier for the tinned portion to bond to other metal surfaces during soldering. This not only strengthens the connection between the wire and the connector, but also reduces the risk of cold or desoldering, improving the reliability of surgical instruments during use.

[0022] The addition of silver and copper makes the tin coating more resistant to oxidation, slowing the formation of an oxide layer. This makes the tin coating less susceptible to poor contact due to oxidation, thereby extending the life of the wire and ensuring stable performance after repeated use and storage.

[0023] The tin alloy containing 3% silver and 0.5% copper has a moderate melting point, facilitating precise tinning during wire production and easing maintenance and replacement. This alloy ratio is easy to process, reducing processing complexity while ensuring consistent tinning thickness and improving production efficiency.

[0024] The silver-copper-tin mixture reduces the overall resistance of the wire, minimizing energy loss during signal transmission. This feature is particularly suitable for surgical instruments sensitive to minute and high-frequency signals, effectively improving the stability of surgical control and ensuring that signals are not interfered with.

[0025] The alloy is lead-free and non-toxic, meeting the strict material requirements of medical devices, ensuring the biocompatibility and safety of surgical instruments, and providing higher safety protection for patients.

[0026] Furthermore, the thickness of the silver plating layer is greater than 1 μm.

[0027] Silver plating with a thickness exceeding 1μm provides lower resistance, significantly improving the electrical conductivity of the wire. This enables stable signal transmission over long distances or during high-frequency operations, ensuring the surgical instrument's sensitive response to minute movements and significantly improving operational precision.

[0028] The thicker silver plating creates a stronger anti-oxidation barrier on the surface, effectively preventing the copper conductor from coming into contact with air, reducing oxidation and corrosion. This design extends the life of the wire, allowing it to maintain high performance even after repeated use and in harsh surgical environments, ensuring the long-term use of the instrument.

[0029] The silver coating, with a thickness greater than 1μm, not only improves electrical conductivity but also increases the mechanical strength of the wire. This makes the wire less likely to deform or break when bent or stretched, improving its durability and reliability, meeting the demands of complex and delicate operations during surgery.

[0030] The thicker silver coating effectively shields external electromagnetic interference, helping to reduce signal interference in complex surgical environments and ensure the accuracy and clarity of control signals. This is particularly important for surgical instruments that require highly precise operation, as it can avoid operational deviations caused by signal distortion.

[0031] The thick silver coating provides improved wettability and bonding for the tinned portion, making the wire more secure when connected to other metals and reducing the risk of cold solder joints, breakage, or poor contact. This stable connection is crucial to the safety and reliability of surgical instruments, reducing the possibility of accidental disconnection.

[0032] The thick silver plating not only meets the electrical conductivity and corrosion resistance requirements of medical devices, but also prevents direct exposure of copper, effectively reducing the risk of particle shedding due to material corrosion. This not only extends the service life of the wire, but also ensures patient safety and meets the requirements of high-standard medical environments.

[0033] The beneficial effects of the utility model are as follows:

[0034] The utility model significantly improves the conductivity of the conductor and the stability of signal transmission by silver plating on the surface of a 0.025mm copper wire conductor, especially when the thickness of the silver plating layer is greater than 1μm, ensuring that surgical instruments can achieve precise control with high sensitivity and low resistance during operation.

[0035] The utility model provides effective anti-oxidation and anti-corrosion protection for the conductor with a thick silver-plated layer, avoids poor signal caused by oxidation of the copper conductor, thereby significantly extending the service life of the wire and meeting the needs of long-term use of surgical instruments.

[0036] The tin-coated part of the utility model is composed of a mixture of 3% silver, 0.5% copper and 96.5% tin, which ensures good weldability and connection strength, makes the connection between the wires and other components more stable, effectively avoids cold soldering or desoldering, and improves the operational reliability of the surgical instrument.

[0037] In this utility model, the tiny size of the conductor and outer sheath (the outer diameter of the outer sheath is controlled at 0.42-0.48mm) meets the requirements for miniaturization and high flexibility of instruments in minimally invasive surgical environments, facilitates precise operation of wires in a small space, and improves the flexibility and accuracy of the surgery.

[0038] The utility model has a detachable soluble polytetrafluoroethylene (PTFE) outer sheath which effectively protects the tin-coated part and prevents wear or deformation during transportation and installation. At the same time, it provides excellent insulation and anti-electromagnetic interference capabilities, which helps to improve the clarity and stability of signal transmission.

[0039] The utility model adopts non-toxic and soluble PTFE material for the outer sheath, which is not only safe and non-toxic, and meets the high standard requirements of medical devices, but also is easy to decompose and dispose after surgery, reducing the difficulty of medical waste disposal and ensuring patient safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 Schematic diagram of the microcontroller wires for surgical robotic forceps.

[0041] Figure 2 Schematic diagram of the conductors of the microcontroller wires for surgical robotic forceps. DETAILED DESCRIPTION

[0042] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0043] Example, combined with Figures 1 to 2 As shown, a micro-control wire for surgical mechanical forceps includes a conductor 1 and a heat shrink tubing 2. The conductor 1 is a copper wire with a diameter of 0.025 mm, and a silver-plated layer is provided on the surface of the copper wire to form a silver-plated copper wire; the heat shrink tubing 2 is sleeved on the silver-plated copper wire, and the end of the silver-plated copper wire exposed from the heat shrink tubing 2 is coated with a tin mixture to form a tin-coated portion 3.

[0044] Furthermore, it also includes an outer sheath 4, which is made of soluble polytetrafluoroethylene material. The outer diameter of the outer sheath 4 is 0.42-0.48 mm. The outer sheath 4 is detachably placed on the end of the silver-plated copper wire, and the outer sheath 4 wraps the tin-coated part 3.

[0045] Furthermore, the tin mixture contains 3% silver, 0.5% copper and 96.5% tin.

[0046] Furthermore, the thickness of the silver plating layer is greater than 1 μm.

Claims

1. A micro-control wire for surgical mechanical forceps, comprising a conductor and a heat shrink tubing, characterized in that: The conductor is a copper wire with a diameter of 0.025 mm, and a silver-plated layer is provided on the surface of the copper wire to form a silver-plated copper wire; The heat shrink tubing is sleeved on the silver-plated copper wire, and the end of the silver-plated copper wire exposed from the heat shrink tubing is coated with a tin mixture to form a tin-coated portion.

2. The micro-control wire for surgical mechanical forceps according to claim 1, characterized in that: It also includes an outer sheath, which is made of soluble polytetrafluoroethylene material. The outer diameter of the outer sheath is 0.42-0.48 mm. The outer sheath is detachably placed on the end of the silver-plated copper wire, and the outer sheath wraps the tin-coated part.

3. The micro-control wire for surgical mechanical forceps according to claim 1, characterized in that: The thickness of the silver plating layer is greater than 1 μm.

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