Wireless visual tendon searching forceps

Abstract

The utility model discloses a pair of wireless visual tendon searching forceps, which comprises handles, forceps arms and forceps heads which are fixedly connected into a whole, comprising a visualization device. The visual device comprises a power supply, a cold light source and a PCB (Printed Circuit Board) which are integrated at the tail end of the clamp arm, and an imaging lens integrated at the clamping end of the clamp head; the power supply is electrically connected with the cold light source and the PCB respectively; the cold light source guides light to the clamping end of the forceps head through light-guide fibers arranged in the forceps arms; the PCB is provided with a WiFi module used for being in communication connection with external equipment and an image sensor used for processing optical signals into electric signals. And the imaging lens transmits an optical signal to the image sensor through an optical fiber arranged in the clamp arm. By means of the visual device, an operation visual field can be provided for a doctor, the doctor can control the forceps head to stretch into the tendon sheath from an original cutting wound to find the retracted tendon, the recovery difficulty of the retracted tendon can be effectively reduced, and the recovery effect after tendon repair or reconstruction is improved.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, specifically a wireless visual tendon locator. Background Technology

[0002] Severe hand lacerations can cause tendon rupture and retraction. For such injuries, the ruptured tendon must first be reattached before the wound is sutured to ensure maximum recovery of hand function. However, due to tendon retraction, surgeons cannot directly see the severed tendon at the wound site during surgery. They must use hemostatic forceps to probe and clamp the tendon along the retraction pathway from the wound. If the tendon has retracted a considerable distance and blind probing is unsuccessful, an auxiliary incision must be made along the retraction path to better locate the tendon. After locating the tendon, it is then pulled back to the wound through the tendon sheath via the auxiliary incision for repair. This method is challenging, especially for inexperienced young surgeons, who may even attempt to retract the tendon directly from under the skin. The above methods of locating and repairing tendons often have the following problems:

[0003] Firstly, the method of blindly clamping the tendon through the wound with hemostats has drawbacks such as a low success rate and the risk of damaging normal soft tissue. In cases where the tendon has retracted significantly, it is impossible to reach the retracted tendon through the tendon sheath using hemostats.

[0004] Secondly, the aforementioned method of locating the retracting tendon through an auxiliary incision causes additional surgical trauma to the patient. Furthermore, when returning the tendon to the wound through the tendon sheath via the auxiliary incision for repair, it is often necessary to partially cut the tendon sheath to facilitate the return along the original path and prevent congestion during tendon movement after repair. This approach increases surgical scarring and can also increase adhesions between the tendon and surrounding tissues, thereby affecting the recovery of hand function.

[0005] Thirdly, under physiological conditions, tendons are located within tendon sheaths, sliding freely and being restrained by the sheaths. Subcutaneous tendon repair can lead to poor tendon fixation, causing the tendon to become suspended during movement, preventing it from sliding along its normal trajectory. This results in decreased finger flexion and extension strength and limited range of motion, ultimately affecting hand function. Utility Model Content

[0006] To address the aforementioned shortcomings in existing technologies, this utility model aims to provide a wireless visual tendon locator to reduce the difficulty of locating retracted tendons and improve the recovery effect after tendon repair or reconstruction.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a wireless visual tendon locator, comprising a handle, a clamp arm, and a clamp head fixedly connected as one piece; and also including a visualization device;

[0008] The visualization device includes a power supply, a cold light source, and a PCB board integrated at the tail end of the clamp arm, and an imaging lens integrated at the clamping end of the clamp head; the power supply is electrically connected to the cold light source and the PCB board respectively; the cold light source guides light to the clamping end of the clamp head through optical fibers arranged in the clamp arm; the PCB board is provided with a WiFi module for communication with external devices and an image sensor for processing light signals into electrical signals; the imaging lens transmits light signals to the image sensor through optical fibers arranged in the clamp arm.

[0009] As a limitation of this utility model, the clamp arm includes a flexible outer tube and a cable passing through the flexible outer tube, the cable connecting the clamp head and the handle to transmit operating force.

[0010] As a further limitation of this utility model, the cable is a steel cable-like flexible rod.

[0011] As another limitation of this utility model, the power supply, the cold light source and the PCB board are encapsulated in a housing.

[0012] As a further limitation of this utility model, the outer casing is provided with a switch button connected to the power supply via a PCB board.

[0013] As a further limitation of this utility model, the outer casing is provided with a Type-C charging port that is connected to the power supply via a PCB board.

[0014] By adopting the above-mentioned technical solution, the beneficial effects achieved by this utility model compared with the prior art are as follows:

[0015] (1) This utility model is a newly designed wireless visual tendon locator. Through a visual device, it provides the doctor with an operating field of view, allowing the doctor to directly control the forceps head to enter from the original wound, locate the retracted tendon along the tendon sheath pathway, and clamp the severed end of the retracted tendon, so that it returns to the wound along the tendon sheath for repair. Using this utility model to locate tendons, no auxiliary incision is required, resulting in less surgical trauma. Moreover, the retracted tendon can be located and clamped under direct vision, and pulled back to the severed site along the tendon sheath pathway. Compared with the currently used vascular clamping method of blind locating within the wound (which has a low success rate, requires an additional auxiliary incision for locating, and greatly increases the chance of trauma and adhesion), this utility model can realize the original incision approach for retracted tendon, accurately locate and repair under visual guidance, and minimize the collateral damage during the locating and repair of retracted tendons, thereby improving the function after repair of hand tendon injuries.

[0016] In summary, using this invention to locate retracted tendons, with the aid of a visualization device, can reduce the difficulty of locating retracted tendons, shorten surgical time, reduce collateral damage, and improve the recovery effect after tendon repair or reconstruction.

[0017] (2) The forceps arm in this utility model is composed of a flexible outer tube and a cable, which not only has the strength to provide pushing force and support force for the forceps head, but also can be flexibly bent to meet the needs of pushing the forceps head along different paths, thereby improving the doctor's operational flexibility of the forceps head. Attached Figure Description

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0019] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0020] Figure 2 This is a schematic diagram of the pliers head portion in an embodiment of the present invention;

[0021] Figure 3 This is a cross-sectional view of a partial structure of the clamp arm in an embodiment of this utility model;

[0022] In the diagram: 1. Handle; 2. Clamp arm; 3. Clamp head; 4. First grip ring; 5. Second grip ring; 6. Flexible outer tube; 7. Cable; 8. Imaging lens; 9. Housing. Detailed Implementation

[0023] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the present invention.

[0024] This embodiment discloses a wireless visual tendon locator, such as Figure 1 As shown, it includes a handle 1, a clamp arm 2, and a clamp head 3 that are fixed together.

[0025] The handle 1 is used by the operator to control the opening and closing action of the pliers head 3. It includes a hinged first grip ring 4 and a second grip ring 5, and the first grip ring 4 and the second grip ring 5 are ergonomically designed, providing a good grip and ease of operation. Figure 3 As shown, the clamp arm 2 includes a flexible outer tube 6 and a cable 7 threaded through the flexible outer tube 6. The flexible outer tube 6 provides pushing and supporting force to the clamp head 3, and can be a helical spring tube or a flexible hose structure made of a composite of flexible material (such as polyurethane) and metal wire. The cable 7 is a steel cable-like flexible rod that connects the clamp head 3 and the handle 1, and is used to transmit operating force so that the clamp head 3 can be switched on and off through the handle 1. In this embodiment, the cable 7 is made of 06Cr19Ni10 and NiTi materials. The clamp arm 2 in this embodiment can be flexibly bent and can be molded into different shapes according to usage requirements. The clamp head 3 is used to clamp retracted tendons and has high clamping force and durability. The structure of the clamp head 3 in this embodiment is the same as the clamp head structure of the endoscopic foreign body forceps in the prior art, so it will not be described again here.

[0026] Furthermore, this embodiment also includes a visualization device to provide the operator with a field of view, enabling the operator to precisely control the forceps head 3 to extend along the tendon sheath from the original wound to locate the retracting tendon. The visualization device includes a power supply, a cold light source, and a PCB board integrated at the tail end of the forceps arm 2, and an imaging lens 8 integrated at the clamping end of the forceps head 3. The power supply is electrically connected to both the cold light source and the PCB board to provide power; the cold light source is a conventional medical LED cold light source, which guides light to the clamping end of the forceps head 3 through optical fibers arranged in the flexible outer tube 6 of the forceps arm 2, illuminating the area in front of the forceps head 3; the PCB board integrates the integrated circuits and electronic components necessary for the operation of the visualization device, including a WiFi module for communication with external devices and an image sensor for processing light signals into electrical signals. The imaging lens 8 also adopts an existing structure, such as... Figure 2 As shown, in this embodiment, two imaging lenses 8 are provided on the clamping end of the clamp head 3, and both imaging lenses 8 transmit light signals to the image sensor on the PCB board through optical fibers arranged in the flexible outer tube 6 of the clamp arm 2.

[0027] More specifically, such as Figure 1 As shown, this embodiment utilizes housing 9 to encapsulate the power supply, cold light source, and PCB board. Furthermore, housing 9 is equipped with a switch button connected to the power supply via the PCB board, which controls the visualization device's on / off state. Housing 9 also features a Type-C charging port connected to the power supply via the PCB board for charging the power supply.

[0028] It should be noted that the visualization device in this embodiment needs to be used with an external device (such as a mobile phone) that has a corresponding app installed, as detailed below:

[0029] The visualization device is activated via a power switch, and then communicates with an external device that has launched the corresponding app using a WiFi module. The light signal acquired by the imaging lens 8 is transmitted to the image sensor on the PCB board via optical fiber. The image sensor converts the light signal into an electrical signal, which is then transmitted to the external device via the WiFi module, allowing the image to be displayed on the corresponding app on the external device.

[0030] When using this embodiment to locate the retracting tendon, the operator holds the handle 1 and controls the clamp head 3 to extend into the tendon sheath from the patient's incision site through the clamp arm 2. During operation, a visualization device is used to display the image in front of the clamp head 3 in real time on an external device. The operator can adaptively adjust the insertion direction of the clamp head 3 through the image display until the retracting tendon is found. Finally, the operator controls the clamp head 3 to clamp the retracting tendon and pull it outward along the original path.

[0031] It should be noted that the above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A wireless visualizing tendon seeker forceps, characterized by: The utility model discloses a handle, a clamp arm and a clamp head are fixedly connected to an organic whole, and further include a visual device. The visual device includes a power supply, a cold light source and a PCB board integrated at the tail end of the clamp arm, and an imaging lens integrated at the clamping end of the clamp head; the power supply is electrically connected with the cold light source and the PCB board respectively; the cold light source guides light to the clamping end of the clamp head through the optical fiber arranged in the clamp arm; the PCB board is provided with a WiFi module for communication connection with external equipment and an image sensor for processing optical signals into electrical signals; the imaging lens transmits optical signals to the image sensor through the optical fiber arranged in the clamp arm.

2. The wireless visualizing tendon seeker forceps according to claim 1, wherein: The clamp arm includes a soft outer tube and a pull cable arranged in the soft outer tube, and the pull cable connects the clamp head and the handle to transmit operating force.

3. The wireless visualizing tendon seeker forceps according to claim 2, wherein: The pull cable is a steel cable-shaped soft rod.

4. The wireless visualizing tendon seeker forceps according to any one of claims 1-3, wherein: The power supply, the cold light source and the PCB board are packaged in a shell.

5. The wireless visualizing tendon seeker forceps according to claim 4, wherein: The shell is provided with a switch button connected with the power supply through the PCB board.

6. The wireless visualizing tendon seeker forceps according to claim 5, wherein: The shell is provided with a Type-C charging port connected with the power supply through the PCB board.

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