Clamping device for operation
By using a clamping device with conductive plastic and a reinforced structure, the issues of weight and cost were resolved, enabling lightweight, safe, and reliable nerve monitoring, which improves the safety and efficiency of surgery.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BECKDAL (SHANGHAI) MEDTECH CO LTD
- Filing Date
- 2024-12-31
- Publication Date
- 2026-05-08
AI Technical Summary
Existing clamping devices made of conductive metals are heavy, costly to manufacture, and pose safety hazards during surgery.
It combines conductive plastic with a reinforced structure, and the surfaces of the clamping part, control part and hand handle are coated with an insulating coating, making it a lightweight clamping device with a reinforced structure.
Significantly reduces weight, lowers production costs, improves safety and stability, ensures reliable transmission of electrical signals, reduces the risk of current leakage to patients, and enhances the safety and reliability of surgery.
Smart Images
Figure CN224206863U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of medical device technology, and in particular to a surgical clamping device. Background Technology
[0002] In human laryngeal surgery, laryngeal tissue is often removed or repaired. Since the recurrent laryngeal nerve is relatively close in the surgical area, traction or direct contact during this process may cause nerve paralysis or damage. Therefore, it is necessary to monitor the condition of the recurrent laryngeal nerve at all times.
[0003] Currently, in recurrent laryngeal nerve surgery, to monitor the recurrent laryngeal nerve, an endotracheal tube with a recurrent laryngeal nerve electrode is inserted into the larynx, with the electrode in contact with the vocal cords. The electrode is connected to an external nerve monitor, which is electrically connected to a conductive metal clamping device via wires. In actual use, when the clamping device touches the recurrent laryngeal nerve, the external nerve monitor releases an electrical signal, directly stimulating the nerve through the clamping device. The nerve transmits electrical stimulation, causing the vocal cord muscles to generate electromyographic (EMG) signals. These EMG signals are received by the recurrent laryngeal nerve electrode on the endotracheal tube surface, which is in contact with the vocal cords, and then transmitted to the nerve monitor. By analyzing the waveform, amplitude, and latency changes of the vocal cord EMG signals, doctors can accurately determine whether the recurrent laryngeal nerve is damaged.
[0004] In recurrent laryngeal nerve surgery, clamping instruments are one of the essential surgical items. The clamping instruments used in traditional nerve monitoring methods are generally made of conductive metal. However, the density of conductive metal is usually high, which makes the clamping instruments heavy and requires a series of complex processes, resulting in relatively high manufacturing costs. Utility Model Content
[0005] To address the problems with clamping devices in the prior art, this application provides a surgical clamping device.
[0006] This application provides a surgical clamping device, which adopts the following technical solution:
[0007] A surgical clamping device includes a clamping device body, which comprises a clamping part, a control part, and a handheld part in sequence. The clamping part is bent. The clamping device body is made of conductive plastic. The surfaces of the clamping part, the control part, and the handheld part are all provided with an insulating coating. The end of the clamping part is provided with a transmission part for transmitting electrical signals. The handheld part is provided with an electrical signal receiving port for connecting to a nerve detector. The clamping device body also includes a reinforcing structure disposed inside the conductive plastic.
[0008] By adopting the above-mentioned technical solutions, this surgical clamping instrument not only effectively reduces weight and the burden on doctors during operation, but also simplifies the manufacturing process and reduces production costs through the design of conductive plastic. Furthermore, the insulating coating ensures safety and reliability during surgery, preventing patient injury caused by accidental current. Simultaneously, the reinforced structure enhances the overall strength and stability of the clamping instrument, extends its service life, and improves the success rate of surgery.
[0009] Preferably, the reinforcing structure includes a reinforcing device, and the conductive plastic is wrapped around the reinforcing device.
[0010] By adopting the above technical solution, the reinforced structure includes a reinforcing device, which is wrapped with conductive plastic. This effectively enhances the overall structure of the surgical clamping instrument, reducing the problems of deformation, poor mechanical strength and stability, or breakage caused by insufficient strength of the clamping device itself. Simultaneously, it avoids deformation caused by improper operation of the clamping instrument, increasing the safety of the surgical procedure and ensuring its safety and reliability.
[0011] Preferably, both clamping parts are provided with clamping surfaces, and the two clamping surfaces are arranged opposite to each other.
[0012] By adopting the above technical solution, the relative arrangement of the clamping surfaces can ensure greater stability during the clamping process, effectively preventing slippage or detachment caused by uneven distribution of clamping force, thereby improving the safety and reliability of surgical operations.
[0013] Preferably, the clamping surface is provided with anti-slip texture.
[0014] By adopting the above technical solution, the anti-slip texture on the clamping surface can increase the friction between the clamping instrument and the tissue, improve the stability and reliability of the operation, and reduce operational errors and potential risks caused by slippage.
[0015] Preferably, the anti-slip texture is provided as multiple textures, and the multiple anti-slip textures are arranged in parallel.
[0016] By adopting the above technical solution, multiple parallel anti-slip grooves can effectively increase the friction between the clamping surface and the object to be clamped, prevent slippage during surgical operations, and improve the safety and accuracy of the surgery.
[0017] Preferably, the connecting end face of the clamping surface and the clamping device body, as well as the adjacent anti-slip texture connecting surface, are all set as arc surfaces.
[0018] By adopting the above technical solution, the connecting end face of the clamping surface and the clamping instrument body, as well as the adjacent anti-slip texture connecting surface, are all set as arc surfaces, which can effectively reduce the risk of scratching and damage to the surgical area and improve the safety and comfort of surgical operation.
[0019] Preferably, the electrical signal receiving port is located on the handheld part away from the clamping part.
[0020] By adopting the above technical solution, the electrical signal receiving port is located at the connection between the handheld part and the control bracket and is away from the direction of the clamping part, making the position of the electrical signal receiving port more reasonable. This makes it easier for doctors to quickly and accurately connect the nerve detector during the operation, reducing operation time and complexity, and improving surgical efficiency.
[0021] Preferably, the end of the clamping part away from the control part is tapered.
[0022] By adopting the above technical solution, the tapered design of the end of the clamping part away from the control part makes it easier for the clamping instrument to penetrate into the tissue space, which facilitates the puncture and dissection of human tissue structures, reduces damage to surrounding tissues, and improves the safety and convenience of surgical operations.
[0023] In summary, this application includes at least one of the following beneficial technical effects:
[0024] 1. The clamping device adopts a combination of conductive plastic and reinforcing fixtures, which significantly reduces the overall weight and lowers the manufacturing cost;
[0025] 2. The conductive plastic has an internal reinforced structure, which improves the mechanical strength and stability of the clamping device and ensures reliable transmission of electrical signals during surgery;
[0026] 3. The clamping part, control part and hand-held part are all coated with an insulating coating, which effectively prevents current leakage and ensures the safety of the patient's operation and the accuracy of the monitoring results. Attached Figure Description
[0027] Figure 1 This is a schematic plan view of the overall structure of the hemostat in Embodiment 1 of this application;
[0028] Figure 2 This is a schematic diagram of the clamping part in Embodiment 1 of this application;
[0029] Figure 3 This is a schematic diagram of the tweezers in Embodiment 2 of this application.
[0030] Reference numerals: 1. Clamping device body; 11. Clamping part; 111. Transmission part; 112. Clamping surface; 12. Control part; 13. Handheld part; 2. Electrical signal receiving port; 3. Anti-slip texture. Detailed Implementation
[0031] The following is in conjunction with the appendix Figure 1 -Appendix Figure 3 This application will be described in further detail.
[0032] Example 1
[0033] Reference Figure 1 A surgical clamping device includes a clamping device body 1, a reinforcing structure is provided inside the clamping device body 1, the reinforcing structure is configured as a reinforcing device, the shape of the reinforcing device is the same as that of the clamping device body 1, and the surface of the reinforcing device is covered with conductive plastic to form the clamping device body 1.
[0034] Reference Figure 1 The conductive plastic is injection molded onto the surface of the reinforcing device using high-polymer conductive materials such as ABS and TPU, meeting the requirements for nerve signal transmission and normal use during surgery. The reinforcing device is made of lightweight metal, such as titanium alloy, molded in one piece, providing high rigidity while reducing the weight of the reinforcing device and improving operability.
[0035] Reference Figure 1 and Figure 2 The clamping device body 1 includes a clamping part 11, a control part 12, and a hand-held part 13. The clamping part 11 is bent, and the bending angle in this embodiment can be between 15° and 95° to adapt to different surgical needs. In this embodiment, the clamping device body 1 is provided with a forceps structure such as a hemostat; that is, the clamping part 11 is a forceps beak, the control part 12 is a forceps body, and the hand-held part 13 is a handle.
[0036] Reference Figure 1 and Figure 2 The clamping part 11, the control part 12, and the handheld part 13 are all provided with an insulating coating. The end of the clamping part 11 is provided with a transmission part 111 for transmitting electrical signals. The transmission part 111 is not provided with an insulating coating, that is, the conductive metal is exposed, so that the transmission part 111 can conduct signals. The handheld part 13 is provided with an electrical signal receiving port 2 for connecting to the nerve detector. The electrical signal receiving port 2 is electrically connected to the transmission part 111 through the conductive plastic in the clamping device body 1. In this embodiment, the insulating coating is formed by vapor deposition of a paraffin coating material.
[0037] Reference Figure 1 and Figure 2The insulating coating on the surfaces of the clamping part 11, the control part 12, and the handheld part 13 prevents the electrical stimulation from being mistakenly transmitted to other places and prevents other parts of the clamping device body 1 from mistakenly transmitting the electrical signal, thus ensuring that the electrical signal can be smoothly transmitted to the recurrent laryngeal nerve. The handheld part 13 is provided with an electrical signal receiving port 2, which is electrically connected to the transmission part 111 through a conductive metal inside the clamping device body 1. It is used to receive the electrical signal emitted by the nerve monitor and transmit the electrical signal emitted by the nerve monitor to the transmission part 111, thereby allowing the recurrent laryngeal nerve to transmit electrical stimulation, causing the vocal cord muscles to generate electromyographic signals, which are fed back to the nerve monitoring instrument through the recurrent laryngeal nerve electrode, making it easier for doctors to determine whether the recurrent laryngeal nerve is damaged and to accurately monitor the status of the recurrent laryngeal nerve.
[0038] Reference Figure 1 and Figure 2 The clamping part 111 has been designed in a more detailed way. Specifically, each of the two clamping parts 11 is provided with a clamping surface 112. The two clamping surfaces 112 are arranged opposite to each other. The part of the two clamping surfaces 112 that are in contact with each other is provided with anti-slip texture 3. The clamping surface 112 and the anti-slip texture 3 increase the contact area with human tissue. The anti-slip texture 3 can increase the friction with human tissue, enhance the stability of clamping, and prevent unnecessary damage to the patient due to unstable clamping during the operation.
[0039] Reference Figure 1 and Figure 2 , refer to Figure 1 The anti-slip texture 3 is designed with multiple parallel anti-slip textures 3, which ensures the stability of the clamping without causing excessive pressure on the nerve tissue. In addition, the connecting end face of the clamping surface 112 and the clamping instrument body 1, as well as the connection between adjacent anti-slip textures 3, are all integrally formed into a smooth arc surface. This design can effectively avoid the possibility of severing nerve tissue during surgery, thereby reducing the risk of damage to nerve tissue. The end of the clamping part 11 away from the control part 12 is tapered, making the clamping part 11 sharper and facilitating the puncture and dissection of human tissue structures.
[0040] Reference Figure 1 and Figure 2 The electrical signal receiving port 2 is located on the handheld part 13 away from the clamping part 11. The position of the electrical signal receiving port 24 is designed to facilitate the placement of the wire connecting the nerve monitor between the two handheld parts 13, which facilitates the connection of the nerve monitor, reduces interference with the operation of the clamping device, and increases the convenience of operation.
[0041] The implementation principle of this application embodiment is as follows: When using a clamping instrument for surgery, the clamping instrument body 1, made of conductive plastic, is lightweight, easy for doctors to operate, and has low manufacturing costs. It can be used once and at one time to avoid cross-infection. The clamping part 11 is designed in a bent shape, which allows for a more flexible operating angle when operating in a confined space without interfering with surrounding tissues. The end of the clamping part 11 away from the control part 12 is tapered, which facilitates puncture and dissection of human tissue structures and improves work efficiency. During surgery, the transmission part 111 of the clamping part 11 transmits the electrical stimulation emitted by the nerve signal monitor connected to the electrical signal receiving port 2, and transmits it to the recurrent laryngeal nerve through the clamping part 11 to generate electromyographic signals in the muscles that innervate the vocal cords. The electromyographic signals are transmitted to the nerve monitor through the recurrent laryngeal nerve electrode on the tracheal tube, which helps the doctor to determine whether the recurrent laryngeal nerve is damaged, so that the doctor can quickly and accurately grasp the real-time status of the nerve.
[0042] Example 2
[0043] The specific difference between this embodiment and Embodiment 1 is as follows:
[0044] Reference Figure 3 In this embodiment of the application, the clamping device body 1 is configured as a tweezers or other tweezers-type structure, that is, the clamping part 11 is a clamping head, the control part 12 is a clamping arm, and the hand-held part 13 is a handle.
[0045] The implementation principle of this application embodiment is as follows: When using this forceps for surgery, the lightweight body 1 of the conductive plastic clamping device is easy for doctors to operate, has low manufacturing cost, and can be used once to avoid cross-infection. The clamping part 11 is designed in a bent shape, which allows for more flexible operating angles when operating in confined spaces without interfering with surrounding tissues. The end of the clamping part 11 away from the control part 12 is tapered, which facilitates puncture and dissection of human tissue structures and improves work efficiency. During surgery, the transmission part 111 of the clamping part 11 transmits the electrical stimulation emitted by the nerve signal monitor connected to the electrical signal receiving port 2, and transmits it to the recurrent laryngeal nerve through the clamping part 11 to generate electromyographic signals in the muscles that innervate the vocal cords. The electromyographic signals are transmitted to the nerve monitor through the recurrent laryngeal nerve electrode on the tracheal tube, which helps doctors determine whether the recurrent laryngeal nerve is damaged, so that doctors can quickly and accurately grasp the real-time status of the nerve.
[0046] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A surgical clamping device, characterized in that: The device includes a clamping device body (1), which includes a clamping part (11), a control part (12), and a handheld part (13) in sequence. The clamping part (11) is bent. The clamping device body (1) is made of conductive plastic. The surfaces of the clamping part (11), the control part (12), and the handheld part (13) are all provided with an insulating coating. The end of the clamping part (11) is provided with a transmission part (111) for transmitting electrical signals. The handheld part (13) is provided with an electrical signal receiving port (2) for connecting to a nerve detector. The clamping device body (1) also includes a reinforcing structure disposed inside the conductive plastic.
2. The surgical clamping device according to claim 1, characterized in that: The reinforcing structure includes a reinforcing device, and the conductive plastic is wrapped around the reinforcing device.
3. The surgical clamping device according to claim 1, characterized in that: Both clamping parts (11) are provided with clamping surfaces (112), and the two clamping surfaces (112) are arranged opposite to each other.
4. A surgical clamping device according to claim 3, characterized in that: The clamping surface (112) is provided with anti-slip texture (3).
5. A surgical clamping device according to claim 4, characterized in that: The anti-slip texture (3) is configured as multiple lines, and the multiple anti-slip textures (3) are arranged in parallel.
6. A surgical clamping device according to claim 5, characterized in that: The connecting end face of the clamping surface (112) and the clamping device body (1) as well as the connecting surface of the adjacent anti-slip texture (3) are all set as arc surfaces.
7. A surgical clamping device according to claim 1, characterized in that: The electrical signal receiving port (2) is located on the handheld part (13) away from the clamping part (11).
8. A surgical clamping device according to claim 1, characterized in that: The end of the clamping part (11) away from the control part (12) is tapered.