Foreign matter taking-out device for ear-nose-throat head and neck surgery

Abstract

The invention relates to the technical field of medical instruments, and particularly discloses an ear-nose-throat head and neck surgery foreign matter extraction device which comprises a fixing frame, the inner wall of the fixing frame is rotationally connected with a set of symmetrical clamping jaws, the side faces, close to each other, of the clamping jaws are jointly and fixedly connected with a set of tension springs, and the upper surface of the fixing frame is fixedly connected with a connecting cover. An abutting structure used for abutting the set of clamping jaws to enable the set of clamping jaws to be kept in an open state is arranged in the fixing frame, and the abutting structure comprises a top frame hinged to one side face of each clamping jaw. Through the cooperation of the flexible rod assembly, the clamping jaw and the abutting structure, when the clamping jaw stretches into the cavity, the clamping jaw can smoothly advance in the bending direction of the cavity through the flexible cylinder, it is ensured that the clamping jaw is always aligned with the area where foreign matter is located, scraping between the clamping jaw and the pharynx and the laryngeal mucosa is avoided, abutting of the abutting structure to the clamping jaw can be relieved through the pull rope, and the clamping jaw can be prevented from being damaged. And therefore, the foreign matter is clamped by the clamping jaws, and the efficiency of taking out the foreign matter is further guaranteed.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a foreign body removal device for otolaryngology-head and neck surgery. Background Technology

[0002] Foreign body removal in otolaryngology-head and neck surgery is a common clinical procedure, covering multiple sites such as the external auditory canal, nasal cavity, pharynx, and superficial cavities of the head and neck, and involving various types of foreign bodies such as metal fragments, plastic particles, plant seeds, insect remains, and fish bones. Currently, medical staff mostly use forceps or hook-shaped grasping structures to remove foreign objects. While these can directly grasp or hook foreign objects in superficial areas, they are less convenient for removing foreign objects from deep cavities such as the pharynx and larynx. Because the pharynx is located deep in the oral cavity and the larynx is close to the entrance of the trachea and esophagus, its anatomical path is naturally curved. Traditional forceps or hook-shaped instruments are mostly straight and rigid structures that cannot adaptively adjust their angle according to the curved path of the cavity. When the instrument is inserted from the oral cavity into the pharynx, the rod and the curved direction of the cavity form an opposing angle, making it difficult for the grasping part to accurately reach the position of the foreign object. Even if it is barely close, the line of sight is blocked by the rod of the instrument, the tongue, or the pharyngeal wall tissue, making it impossible for doctors to clearly observe the relative position of the foreign object and the surrounding mucosa, which further reduces the efficiency of foreign object removal. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a foreign body removal device for otolaryngology-head and neck surgery. When removing foreign bodies from the pharynx or larynx, the grippers can move smoothly along the curvature of the cavity, ensuring that the grippers are always aligned with the area where the foreign body is located, avoiding scraping against the pharyngeal or laryngeal mucosa, and further ensuring the efficiency of foreign body removal.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a foreign body removal device for otolaryngology-head and neck surgery, comprising a fixed frame, a set of symmetrical grippers rotatably connected to the inner wall of the fixed frame, a set of tension springs fixedly connected to one side of the set of grippers that are close to each other, a connecting cover fixedly connected to the upper surface of the fixed frame, a supporting structure for holding the set of grippers in an open state provided inside the fixed frame, the supporting structure including a top frame hinged to one side of each gripper, a top plate hinged to the other end of each top frame, a U-shaped plate hinged to the top of the set of top plates, a flexible rod assembly mounted on the upper surface of the connecting cover, the flexible rod assembly including a flexible cylinder fixedly connected to the upper surface of the connecting cover, the flexible cylinder being made of nickel-titanium alloy, a pull rope slidably connected to the top of the flexible cylinder, the bottom end of the pull rope being connected to the upper surface of the U-shaped plate, and a miniature camera mounted on the inner wall of the fixed frame.

[0005] As a preferred embodiment of the present invention, a support plate is provided below the U-shaped plate, and both the front and rear ends of the support plate are connected to the inner wall of the fixed frame. A set of upright plates are fixedly connected to the upper surface of the support plate. A set of sliding rods are fixedly connected to the side of the set of upright plates that are close to each other. A sliding plate is slidably connected to the outer surface of the set of sliding rods. Triangular blocks are fixedly connected to the side of the set of sliding plates that are far apart from each other. A hanging plate is provided on the outside of each triangular block. The top of each hanging plate is connected to the inner top wall of the U-shaped plate.

[0006] As a preferred embodiment of the present invention, each of the slide rods is fitted with a spring on its outer surface, and the left and right ends of each spring are respectively connected to one side of a set of slides that are close to each other.

[0007] As a preferred embodiment of the present invention, a set of first guide posts are fixedly connected to both the front and back sides of the U-shaped plate, and a first guide frame is slidably connected to the outer surface of each first guide post, and one side of each first guide frame is connected to the inner wall of the fixed frame.

[0008] As a preferred embodiment of the present invention, a second guide post is fixedly connected to the front and back of each top frame, a second guide frame is slidably connected to the outer surface of each second guide post, and one side of each second guide frame is connected to the inner wall of the fixed frame.

[0009] As a preferred embodiment of the present invention, a ring-shaped LED light is installed on the inner wall of the fixed frame, and the ring-shaped LED light is located directly below the miniature camera.

[0010] As a preferred embodiment of the present invention, the other end of the pull rope is fixedly connected to a pull ring, and the pull ring is covered with an anti-wear pad.

[0011] As a preferred embodiment of the present invention, the outer surface of the pull rope is slidably connected to a set of equally spaced sliding cylinders, and the outer surface of each sliding cylinder is connected to the inner wall of the flexible cylinder.

[0012] As a preferred embodiment of the present invention, the outer surface of the flexible cylinder is fixedly connected with two sets of anti-slip protrusions arranged at equal intervals.

[0013] As a preferred embodiment of the present invention, each of the grippers is covered with a silicone sleeve.

[0014] Compared with the prior art, the present invention provides a foreign body removal device for otolaryngology-head and neck surgery, which has the following beneficial effects: 1. This foreign body removal device for otolaryngology-head and neck surgery, through the cooperation of a flexible rod assembly, grippers, and a restraining structure, allows the grippers to move smoothly along the curvature of the cavity when they are inserted, ensuring that the grippers are always aligned with the area where the foreign body is located, avoiding scratching the pharyngeal and laryngeal mucosa. The pull rope can release the restraining structure from the grippers, allowing the grippers to hold the foreign body, further ensuring the efficiency of foreign body removal.

[0015] 2. This foreign body removal device for otolaryngology head and neck surgery, through the combination of a miniature camera and a ring LED light, can illuminate the direction of the gripper's movement, allowing the operator to clearly observe the path and the foreign body, reducing ineffective exploration caused by unclear vision, further improving the accuracy and safety of foreign body removal, and reducing the risk of mucosal damage. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 This is a three-dimensional structural schematic diagram of the top view of the connecting cover of the present invention; Figure 3 This is a three-dimensional structural schematic diagram of the flexible rod assembly of the present invention from a bottom view; Figure 4 This is a three-dimensional structural diagram of the fixing frame of the present invention; Figure 5 This is a three-dimensional structural diagram of the supporting structure of the present invention; Figure 6 This is a three-dimensional structural schematic diagram of the side view of the U-shaped plate of the present invention; Figure 7 This is a three-dimensional structural diagram of the hanging plate of the present invention.

[0017] In the diagram: 1. Fixed frame; 2. Gripper; 3. Tension spring; 4. Connecting cover; 5. Flexible rod assembly; 501. Flexible cylinder; 502. Pull rope; 503. Pull ring; 504. Slide cylinder; 505. Anti-slip protrusion; 6. Support structure; 601. U-shaped plate; 602. Top plate; 603. Top frame; 604. Second guide post; 605. Second guide frame; 606. First guide post; 607. First guide frame; 608. Support plate; 609. Vertical plate; 610. Slide rod; 611. Spring; 612. Slide plate; 613. Triangular block; 614. Hanging plate; 7. Miniature camera; 8. Ring LED light. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example

[0019] Please see Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6 and Figure 7 In this embodiment: a foreign body removal device for otolaryngology head and neck surgery includes a fixed frame 1. A set of symmetrical grippers 2 are rotatably connected to the inner wall of the fixed frame 1. Each gripper 2 is covered with a silicone sleeve. When the gripper 2 is inserted into the pharynx or larynx, the silicone sleeve can buffer the direct contact force between the gripper 2 and the mucosa. Even if the gripper 2 slightly touches sensitive tissues such as the pharyngeal wall or epiglottis, the silicone sleeve can disperse the pressure through its own deformation, avoiding mucosal congestion and scratches caused by direct scraping of the gripper 2.

[0020] A set of clamping claws 2 are fixedly connected to a set of tension springs 3 on their adjacent sides. The tension springs 3 apply a holding force between the clamping claws 2. A connecting cover 4 is fixedly connected to the upper surface of the fixing frame 1. The interior of the fixing frame 1 is provided with a supporting structure 6 for holding the set of clamping claws 2 in an open state. The supporting structure 6 includes a top frame 603 hinged to one side of each clamping claw 2. A top plate 602 is hinged to the other end of each top frame 603. A U-shaped plate 601 is hinged to the top of the set of top plates 602. A support plate 608 is provided below the U-shaped plate 601. Both the front and rear ends of the support plate 608 are connected to the inner wall of the fixing frame 1. A set of upright plates 609 are fixedly connected to the upper surface of the support plate 608. A set of sliding rods 610 are fixedly connected to the adjacent sides of the set of upright plates 609. The outer surface of the slide bar 601 is slidably connected to a slide plate 612. A set of slide plates 612 are fixedly connected to a triangular block 613 on the side of each slide plate 612 that is far apart from each other. Each triangular block 613 is provided with a hanging plate 614 on its outside. The top of each hanging plate 614 is connected to the inner top wall of the U-shaped plate 601. A spring 611 is sleeved on the outer surface of each slide bar 610. The left and right ends of each spring 611 are respectively connected to the side of each slide plate 612 that is close to each other. The spring force of the spring 611 can push the slide plate 612. At this time, the triangular block 613 will be hung on the hanging plate 614, thereby ensuring that the hanging plate 614 pulls the U-shaped plate 601. The top plate 602 will support the top frame 603. The other end of the top frame 603 will apply a supporting force to the gripper 2, thereby ensuring that the gripper 2 is in the unfolded state.

[0021] A set of first guide posts 606 are fixedly connected to both the front and back of the U-shaped plate 601. A first guide frame 607 is slidably connected to the outer surface of each first guide post 606. One side of each first guide frame 607 is connected to the inner wall of the fixed frame 1. The cooperation between the first guide post 606 and the first guide frame 607 can position the U-shaped plate 601, thereby ensuring that the U-shaped plate 601 is in the middle position of the fixed frame 1. A second guide post 604 is fixedly connected to both the front and back of each top frame 603. A second guide frame 605 is slidably connected to the outer surface of each second guide post 604. One side of each second guide frame 605 is connected to the inner wall of the fixed frame 1. The cooperation between the second guide post 604 and the second guide frame 605 can position the top frame 603, thereby ensuring that the top frame 603 stably supports the gripper 2. Example

[0022] Please see Figure 1 and Figure 2 In this embodiment: A flexible rod assembly 5 is installed on the upper surface of the connecting cover 4. The flexible rod assembly 5 includes a flexible cylinder 501 fixedly connected to the upper surface of the connecting cover 4. The flexible cylinder 501 is made of nickel-titanium alloy. When the gripper 2 is inserted into the oral cavity or pharynx, as the gripper 2 continues to advance deeper, the operator can adaptively bend the flexible cylinder 501 by holding the middle position of the flexible cylinder 501, thereby guiding the gripper 2 to advance smoothly along the bending direction of the cavity, ensuring that the gripper 2 is always aligned with the area where the foreign object is located, and avoiding scratching the pharyngeal and laryngeal mucosa.

[0023] A pull rope 502 is slidably connected to the top of the flexible cylinder 501. The bottom end of the pull rope 502 is connected to the upper surface of the U-shaped plate 601. When the gripper 2 reaches the foreign object, the operator pulls the pull rope 502, which runs through the flexible cylinder 501, with their fingers. Pulling the rope 502 will simultaneously cause the U-shaped plate 601 to slide upward. At this time, the hanging plate 614 connected to the U-shaped plate 601 will move upward under the same force. The inclined surface at the bottom of the hanging plate 614 will contact the inclined surface of the triangular block 613 and push the triangular block 613 towards the center of the device through friction. As the triangular block 613 moves, it will simultaneously squeeze the sliding plates 61 on both sides. 2. As the distance between the slide plates 612 decreases, the bottom slope of the hanging plate 614 completely separates from the slope of the triangular block 613. The hanging plate 614, which loses its support, continues to move upward with the U-shaped plate 601. The top plate 602 will also move upward synchronously. Its bottom end will pull the top frame 603 to deflect outward around the pin axis, thereby releasing the holding force applied by the top frame 603 to the two side walls of the gripper 2. At this time, the tension of the tension spring 3 connected between the two side walls of the gripper 2 is released. The tension spring 3 quickly contracts and generates a pulling force towards the center, causing the gripper 2 to move closer to each other and fit tightly against the surface of the foreign object, thus achieving stable clamping of foreign objects of different shapes.

[0024] A miniature camera 7 is installed on the inner wall of the fixed frame 1. The miniature camera 7 can take pictures of the gripping point of the gripper 2 and can feed the picture back to the control panel in real time. The operator can accurately bend the flexible cylinder 501 according to the feedback picture, and can also clearly see foreign objects to avoid scratching the mucous membrane of the pharynx and larynx. It can also accurately judge the forward distance of the gripper 2. A ring LED light 8 is installed on the inner wall of the fixed frame 1. The ring LED light 8 is located directly below the miniature camera 7. The ring LED light 8 can illuminate the forward path of the gripper 2.

[0025] Two sets of equidistant anti-slip protrusions 505 are fixedly connected to the outer surface of the flexible cylinder 501. The anti-slip protrusions 505 allow the operator's fingers and skin to contact the flexible cylinder 501 to form multi-point engagement, increasing the static friction coefficient and preventing slippage due to moisture, thus avoiding slippage.

[0026] The other end of the pull rope 502 is fixedly connected to a pull ring 503, and the pull ring 503 is covered with an anti-wear pad. The pull ring 503 makes it easier for workers to pull the pull rope 502. A set of equally spaced slide cylinders 504 are slidably connected to the outer surface of the pull rope 502. The outer surface of each slide cylinder 504 is connected to the inner wall of the flexible cylinder 501. The slide cylinders 504 can be used to position the pull rope 502, ensuring that the pull rope 502 is always in the middle position of the flexible cylinder 501, thus ensuring the efficiency of force transmission when the pull rope 502 is pulled.

[0027] The working principle and usage process of this invention: When removing foreign objects from the pharynx or larynx, medical personnel need to slowly insert the clamp 2 along the anatomical path of the oral cavity or pharynx. Due to the natural curvature angle of the pharynx and larynx, as the clamp 2 continues to advance deeper, the operator can hold the flexible tube 501 at the middle position and, based on the real-time path captured by the miniature camera 7 and fed back to the external display panel, adaptively bend the flexible tube 501 to guide the clamp 2 to advance smoothly along the curvature direction of the cavity, ensuring that the clamp 2 is always aligned with the area where the foreign object is located, avoiding scratching the pharyngeal and laryngeal mucosa. Furthermore, medical personnel can clearly observe the size, shape, and relative position of the foreign object with the surrounding tissues based on the captured images, and accurately judge the advancing distance of the clamp 2.

[0028] When the gripper 2 reaches 3-5mm directly in front of the foreign object, the operator pulls the rope 502, which runs through the flexible cylinder 501, with their fingers. Pulling the rope 502 simultaneously causes the U-shaped plate 601 to slide upward. At this time, the hanging plate 614, which is connected to the U-shaped plate 601, will move upward under the same force. The inclined surface at the bottom of the hanging plate 614 will come into contact with the inclined surface of the triangular block 613, and the friction will push the triangular block 613 towards the center of the device. As the triangular block 613 moves, it will simultaneously squeeze the two sliding plates 612 together horizontally. When the gap between the sliding plates 612 decreases, the inclined surface at the bottom of the hanging plate 614 completely disengages from the inclined surface of the triangular block 613, losing its function. As the supporting hanging plate 614 continues to move upward with the U-shaped plate 601, the top plate 602 also moves upward synchronously. Its bottom end will pull the top frame 603 to deflect outward around the pin axis, thereby releasing the holding force exerted by the top frame 603 on the two side walls of the gripper 2. At this time, the tension of the tension spring 3 connected between the two side walls of the gripper 2 is released. The tension spring 3 quickly contracts and generates a pulling force towards the center, causing the gripper 2 to move closer to each other and fit tightly against the surface of the foreign object, thus achieving stable gripping of foreign objects of different shapes. Finally, the foreign object is efficiently grasped, laying the foundation for the smooth removal of the foreign object in the future. This significantly improves the success rate and safety of removing foreign objects deep in the pharynx and larynx, and avoids secondary damage caused by blind operation.

[0029] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing 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 invention should be included within the protection scope of the present invention.

Claims

1. A foreign body removal device for otolaryngology-head and neck surgery, comprising a fixing frame (1), characterized in that: The inner wall of the fixed frame (1) is rotatably connected to a set of symmetrical grippers (2). A set of tension springs (3) are fixedly connected to one side of the set of grippers (2) that are close to each other. A connecting cover (4) is fixedly connected to the upper surface of the fixed frame (1). The interior of the fixed frame (1) is provided with a supporting structure (6) for holding the set of grippers (2) in an open state. The supporting structure (6) includes a top frame (603) hinged to one side of each gripper (2). A top plate (602) is hinged to the other end of each top frame (603). A U-shaped plate (601) is hinged to the top of a set of top plates (602). A flexible rod assembly (5) is installed on the upper surface of the connecting cover (4). The flexible rod assembly (5) includes a flexible cylinder (501) fixedly connected to the upper surface of the connecting cover (4). The flexible cylinder (501) is made of nickel-titanium alloy. A pull rope (502) is slidably connected to the top of the flexible cylinder (501). The bottom end of the pull rope (502) is connected to the upper surface of the U-shaped plate (601). A miniature camera (7) is installed on the inner wall of the fixed frame (1).

2. The foreign body removal device for otolaryngology-head and neck surgery according to claim 1, characterized in that: A support plate (608) is provided below the U-shaped plate (601). Both the front and rear ends of the support plate (608) are connected to the inner wall of the fixed frame (1). A set of upright plates (609) are fixedly connected to the upper surface of the support plate (608). A set of sliding rods (610) are fixedly connected to the side of the set of upright plates (609) that are close to each other. A sliding plate (612) is slidably connected to the outer surface of the set of sliding rods (610). Triangular blocks (613) are fixedly connected to the side of the set of sliding plates (612) that are far apart from each other. A hanging plate (614) is provided on the outside of each triangular block (613). The top of each hanging plate (614) is connected to the inner top wall of the U-shaped plate (601).

3. The foreign body removal device for otolaryngology-head and neck surgery according to claim 2, characterized in that: Each of the slide bars (610) has a spring (611) fitted on its outer surface, and the left and right ends of each spring (611) are respectively connected to one side of a set of slide plates (612) that are close to each other.

4. The foreign body removal device for otolaryngology-head and neck surgery according to claim 1, characterized in that: A set of first guide posts (606) are fixedly connected to both the front and back sides of the U-shaped plate (601). A first guide frame (607) is slidably connected to the outer surface of each first guide post (606). One side of each first guide frame (607) is connected to the inner wall of the fixed frame (1).

5. The foreign body removal device for otolaryngology-head and neck surgery according to claim 1, characterized in that: Each of the top frames (603) has a second guide post (604) fixedly connected to its front and back sides. Each of the second guide posts (604) has a second guide frame (605) slidably connected to its outer surface. One side of each of the second guide frames (605) is connected to the inner wall of the fixed frame (1).

6. The foreign body removal device for otolaryngology-head and neck surgery according to claim 1, characterized in that: The inner wall of the fixed frame (1) is equipped with a ring LED light (8), which is located directly below the miniature camera (7).

7. The foreign body removal device for otolaryngology-head and neck surgery according to claim 1, characterized in that: The other end of the pull rope (502) is fixedly connected to a pull ring (503), and the pull ring (503) is covered with an anti-wear pad.

8. The foreign body removal device for otolaryngology-head and neck surgery according to claim 1, characterized in that: The outer surface of the pull rope (502) is slidably connected to a set of equally spaced slide cylinders (504), and the outer surface of each slide cylinder (504) is connected to the inner wall of the flexible cylinder (501).

9. A foreign body removal device for otolaryngology-head and neck surgery according to claim 1, characterized in that: The outer surface of the flexible cylinder (501) is fixedly connected with two sets of anti-slip protrusions (505) arranged at equal distances.

10. A foreign body removal device for otolaryngology-head and neck surgery according to claim 1, characterized in that: Each of the grippers (2) is covered with a silicone sleeve.

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