Laryngeal forceps which are easily detachable and bendable

Abstract

The utility model discloses a kind of throat forceps of being convenient to detach and being bendable, including fixed handle (1), the rear side of fixed handle (1) is equipped with movable handle (2), the upper portion of fixed handle (1) is connected movable handle (2) by plug screw (3), the upper end of fixed handle (1) is forwardly bent and extends to form hollow guide portion (4), the front side of guide portion (4) is equipped with rigid catheter (5), the front end of rigid catheter (5) is equipped with soft catheter (6) of memory alloy material, the front end of soft catheter (6) is equipped with fixed forceps head (7), elastic pull rod (8) is equipped in soft catheter (6), the rear end of pull rod (8) passes through rigid catheter (5) and is connected with the upper end of movable handle (2), the front end of pull rod (8) is equipped with movable forceps head (9), pull rod (8) and fixed forceps head (7) are all rotationally connected with movable forceps head (9).The utility model has the advantages of being relatively convenient and having low operating difficulty.

Description

Technical Field

[0001] This utility model belongs to the field of laryngeal medical devices, and in particular relates to a laryngeal forceps that is easy to disassemble and bend. Background Technology

[0002] Laryngeal forceps are used in laryngeal surgery to remove foreign objects. For example, the laryngeal forceps with application number 201720390677.X include a movable handle and a fixed handle, which are connected and fixed. A forceps bar is fixedly connected to the front end of the fixed handle, and a fixed forceps head is fixedly connected to the front end of the forceps bar. The diameter of the forceps bar gradually increases from the forceps head end to the handle end. A pull rod is provided inside the forceps bar. The first end of the pull rod is pinned to the movable forceps head, and the tail end of the pull rod is pinned to the movable handle.

[0003] According to feedback from doctors, the existing laryngeal forceps have the following problems during use: First, the lever is not easy to remove from the lever, and some dirt is hidden inside the forceps, which is not convenient for postoperative cleaning and disinfection; Second, the forceps bar is straight, while the laryngeal passage is curved, and foreign objects appear in random positions in the larynx, often resulting in the forceps head being unable to grasp the foreign object. Doctors need to repeatedly adjust their operating posture and can only grasp the foreign object in a very awkward operating posture, which makes the operation difficult. Utility Model Content

[0004] The purpose of this invention is to provide a throat clamp that is easy to disassemble and flexible.

[0005] This invention has the advantages of being relatively easy to clean and disinfect and having low operational difficulty.

[0006] The technical solution of this utility model is as follows: a detachable and flexible throat clamp, including a fixed clamp handle, a movable clamp handle on the rear side of the fixed clamp handle, the upper part of the fixed clamp handle being connected to the movable clamp handle by a plug screw, the upper end of the fixed clamp handle being bent forward to form a hollow guide part, a rigid guide tube on the front side of the guide part, a soft guide tube made of shape memory alloy at the front end of the rigid guide tube, a fixed clamp head at the front end of the soft guide tube, an elastic pull rod inside the soft guide tube, the rear end of the pull rod passing through the rigid guide tube and engaging with the upper end of the movable clamp handle, the front end of the pull rod being a movable clamp head, and both the pull rod and the fixed clamp head being rotatably connected to the movable clamp head.

[0007] In the aforementioned easily disassembled and flexible throat clamp, the axis of rotation of the pull rod and the moving clamp head is located below the axis of rotation of the fixed clamp head and the moving clamp head.

[0008] In the aforementioned easily disassembled and flexible laryngeal clamp, the rigid tubing is connected to the guide via an adapter tube, a pull rod passes through the adapter tube, the rear end of the rigid tubing is tightly fitted and fixed to the front end of the adapter tube, the rear end of the adapter tube is inserted into the guide, the rear end of the adapter tube is provided with an annular groove, and the bottom of the guide is provided with a locking screw with one end inserted into the annular groove.

[0009] In the aforementioned easily disassembled and flexible laryngeal clamp, gaps are formed between the rigid tubing and the pull rod, as well as between the flexible tubing and the pull rod. A pipe connector is provided on the side wall of the adapter tube, and the pipe connector is located between the rigid tubing and the guide section.

[0010] In the aforementioned easily disassembled and flexible throat clamp, the upper end of the movable clamp handle is bent backward, and the upper end of the movable clamp handle is provided with a groove that connects to the front side wall of the movable clamp handle. The rear end of the pull rod is provided with a pull pin that is slidably connected to the guide part, and the rear end of the pull pin is provided with a ball head located in the groove.

[0011] In the aforementioned easily disassembled and flexible throat clamp, a limiting pin is provided between the fixed clamp handle and the movable clamp handle. The limiting pin is used to limit the minimum opening angle between the fixed clamp handle and the movable clamp handle.

[0012] In the aforementioned easily disassembled and flexible throat clamp, the shape memory alloy is a nickel-titanium shape memory alloy.

[0013] Compared with the prior art, the present invention makes the following improvements based on the existing laryngeal clamps:

[0014] First, the connection between the pull rod and the movable forceps handle is a snap-fit, meaning that the rear end of the pull rod can be separated from the movable forceps handle, allowing the pull rod to be pulled out axially, which facilitates postoperative cleaning and disinfection.

[0015] Secondly, the original forceps handles have been replaced with rigid and flexible tubing. The flexible tubing can be bent accordingly to the location of the foreign object in the throat, making it easier for the forceps to grasp the object and reducing the difficulty of operation. The flexible tubing is made of shape memory alloy, which can return to its original shape after heating and will not affect the next use.

[0016] Third, a pipe connector has been added. After connecting the pipe connector to the flushing equipment, the flushing fluid can be discharged from the front end of the soft tube to flush the throat, making the field of vision clear, making it easier to observe foreign objects, and making it easier to grab foreign objects, further reducing the difficulty of operation.

[0017] In summary, this utility model has the advantages of being relatively convenient for cleaning and disinfection and having low operational difficulty. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of the present invention.

[0019] Figure 2 This is a front view schematic diagram of the front end of this utility model.

[0020] Figure 3 This is a three-dimensional schematic diagram of the fixed clamp head in one direction.

[0021] Figure 4 This is a three-dimensional schematic diagram of the fixed clamp head in another direction.

[0022] Figure 5 This is a three-dimensional schematic diagram of the moving pliers head in one direction.

[0023] Figure 6 This is a front view schematic diagram of the guide section of this utility model.

[0024] Figure 7 This is a front view schematic diagram of the connection between the rigid and flexible conduits of this utility model.

[0025] Figure 8 This is a schematic diagram of the structure at the upper end of the moving clamp handle.

[0026] The markings in the attached diagram are as follows: 1-fixed clamp handle, 2-moving clamp handle, 3-clamping screw, 4-guide part, 5-rigid conduit, 6-soft conduit, 7-fixed clamp head, 8-pull rod, 9-moving clamp head, 10-adapter pipe, 11-annular groove, 12-locking screw, 13-pipe connector, 14-slot, 15-pull pin, 16-ball head, 17-limit pin. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0028] Example: A detachable and flexible throat clamp, such as Figure 1 As shown, it includes a fixed clamp handle 1, a movable clamp handle 2 on the rear side of the fixed clamp handle 1, the upper part of the fixed clamp handle 1 is connected to the movable clamp handle 2 by a plug screw 3, the upper end of the fixed clamp handle 1 is bent forward to form a hollow guide part 4, the front end of the guide part 4 is connected to a rigid conduit 5 by an adapter pipe 10, and the front end of the rigid conduit 5 is provided with a soft conduit 6 made of nickel-titanium shape memory alloy.

[0029] The front end of the flexible catheter 6 is screwed or tightly fitted with a fixed clamp head 7. The fixed clamp head 7, viewed from above, has a flat, rectangular through-hole. Inside the flexible catheter 6 is a flexible pull rod 8, which is made of steel and can be bent due to its slender shape. The front end of the pull rod 8 extends into the through-hole and connects to a movable clamp head 9. The rear end of the movable clamp head 9 is embedded in the through-hole. Both the pull rod 8 and the fixed clamp head 7 are rotatably connected to the movable clamp head 9. The rotation axis of the pull rod 8 and the movable clamp head 9 is located below the rotation axis of the fixed clamp head 7 and the movable clamp head 9. When the front ends of the fixed clamp head 7 and the movable clamp head 9 are closed, they form a spherical surface, preventing scratches to the laryngeal mucosa when grasping foreign objects.

[0030] The rear end of the pull rod 8 passes through the rigid conduit 5 and the adapter 10. The rear end of the rigid conduit 5 is tightly fitted and fixed to the front end of the adapter 10. The rear end of the adapter 10 is inserted into the guide part 4. The rear end of the adapter 10 is provided with an annular groove 11. The bottom of the guide part 4 is provided with a locking screw 12 with one end inserted into the annular groove 11.

[0031] The upper end of the movable clamp handle 2 is bent backward, and the upper end of the movable clamp handle 2 is provided with a groove 14. The groove 14 is connected to the front side wall of the movable clamp handle 2. The rear end of the pull rod 8 is provided with a pull pin 15 that is slidably connected to the guide part 4. The rear end of the pull rod 8 is inserted into the front end of the pull pin 15. The pull rod 8 and the pull pin 15 are detachably connected, such as by screw connection or pin connection. The rear end of the pull pin 15 is provided with a ball head 16 located in the groove 14.

[0032] Gaps are formed between the rigid conduit 5 and the pull rod 8, and between the flexible conduit 6 and the pull rod 8. A pipe joint 13 is provided on the side wall of the adapter pipe 10, and the pipe joint 13 is located between the rigid conduit 5 and the guide part 4.

[0033] A limiting pin 17 is provided between the fixed clamp handle 1 and the movable clamp handle 2. The limiting pin 17 is fixed to the fixed clamp handle 1 and is used to limit the minimum opening angle between the fixed clamp handle 1 and the movable clamp handle 2. When the movable clamp handle 2 closes to contact the limiting pin 17, the fixed clamp head 7 and the movable clamp head 9 close.

[0034] Working principle: When the lower end of the movable jaw handle 2 moves backward, the upper end of the movable jaw handle 2 moves forward, causing the ball head 16 to move forward. The ball head 16 drives the movable jaw head 9 to rotate upward through the pull pin 15 and the pull rod 8, opening the gap between the movable jaw head 9 and the fixed jaw head 7, allowing foreign objects in the throat to enter between the movable jaw head 9 and the fixed jaw head 7. When the lower end of the movable jaw handle 2 moves forward, the gap between the movable jaw head 9 and the fixed jaw head 7 closes, clamping the foreign object, which can then be removed.

[0035] During the removal of foreign objects, the pipe connector 13 is connected to the flushing equipment. The flushing fluid enters the transfer pipe 10 through the pipe connector 13, passes through the rigid tube 5 and the soft tube 6 in sequence, and is sprayed out from the front end of the soft tube 6. This can flush the throat, expose the foreign object, and make it easier to grasp accurately, thus making the laryngeal forceps convenient to use.

[0036] Because the shape memory alloy material is relatively soft, the flexible catheter 6 can be bent, and the internal pull rod 8 bends accordingly, making it easier for the moving forceps 9 and the fixed forceps 7 to grasp the foreign object, reducing the difficulty of grasping the foreign object. After the operation is completed, the flexible catheter 6 can be restored to its original shape by heating.

[0037] When cleaning and disinfecting laryngeal forceps, such as Figure 6 As shown, unscrewing the stop screw 3 allows the movable forceps handle 2 to be removed from the laryngeal forceps. Loosening the locking screw 12 allows the fixed forceps handle 1 to be moved backward, removing it from the laryngeal forceps. Removing the pull pin 15 from the pull rod 8 and the fixed forceps head 7 from the flexible tubing 6 allows the pull rod 8 to be pulled out from both the flexible tubing 6 and the rigid tubing 5. The laryngeal forceps are disassembled thoroughly, resulting in good cleaning and disinfection.

[0038] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

Claims

1. A laryngeal punch that is easily disassembled and flexible, characterized in that: The device includes a fixed clamp handle (1), a movable clamp handle (2) on the rear side of the fixed clamp handle (1), the upper part of the fixed clamp handle (1) is connected to the movable clamp handle (2) by a plug screw (3), the upper end of the fixed clamp handle (1) is bent forward to form a hollow guide part (4), the front side of the guide part (4) is provided with a rigid guide tube (5), the front end of the rigid guide tube (5) is provided with a soft guide tube (6) made of shape memory alloy, the front end of the soft guide tube (6) is provided with a fixed clamp head (7), the soft guide tube (6) is provided with an elastic pull rod (8), the rear end of the pull rod (8) passes through the rigid guide tube (5) and is engaged with the upper end of the movable clamp handle (2), the front end of the pull rod (8) is provided with a movable clamp head (9), and the pull rod (8) and the fixed clamp head (7) are rotatably connected to the movable clamp head (9).

2. The detachable and bendable laryngeal punch according to claim 1, wherein: The rotation axis of the pull rod (8) and the moving jaw (9) is located below the rotation axis of the fixed jaw (7) and the moving jaw (9).

3. The detachable and bendable laryngeal punch according to claim 1, wherein: The rigid conduit (5) is connected to the guide part (4) through the adapter (10). The pull rod (8) passes through the adapter (10). The rear end of the rigid conduit (5) is tightly fitted and fixed to the front end of the adapter (10). The rear end of the adapter (10) is inserted into the guide part (4). The rear end of the adapter (10) is provided with an annular groove (11). The bottom of the guide part (4) is provided with a locking screw (12) with one end inserted into the annular groove (11).

4. The detachable and bendable laryngeal punch according to claim 3, wherein: A gap is formed between the rigid conduit (5) and the pull rod (8) and between the soft conduit (6) and the pull rod (8). A pipe joint (13) is provided on the side wall of the adapter pipe (10), and the pipe joint (13) is located between the rigid conduit (5) and the guide part (4).

5. The flexible and detachable laryngeal punch according to claim 3 or 4, characterized in that: The upper end of the movable clamp handle (2) is bent backward, and the upper end of the movable clamp handle (2) is provided with a groove (14), which is connected to the front side wall of the movable clamp handle (2). The rear end of the pull rod (8) is provided with a pull pin (15) that is slidably connected to the guide part (4), and the rear end of the pull pin (15) is provided with a ball head (16) located in the groove (14).

6. The detachable and bendable laryngeal punch according to claim 1, wherein: A limiting pin (17) is provided between the fixed clamp handle (1) and the movable clamp handle (2), and the limiting pin (17) is used to limit the minimum opening angle between the fixed clamp handle (1) and the movable clamp handle (2).

7. The detachable and bendable laryngeal punch according to claim 1, wherein: The shape memory alloy is a nickel-titanium shape memory alloy.

Images