A disposable transnasal saddle patch material support device

By designing a support device removal device that includes a handle, a removal catheter, and a hook, the problem of requiring a large incision for existing support device removal has been solved, enabling removal through a small incision and promoting patient recovery.

CN224403726UActive Publication Date: 2026-06-26LANDA WING SHIELD (SUZHOU) MEDICAL TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
LANDA WING SHIELD (SUZHOU) MEDICAL TECHNOLOGY CO LTD
Filing Date
2025-08-11
Publication Date
2026-06-26

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Abstract

The utility model relates to a sella turcica bottom repair technical field, especially for a kind of disposable nasal sella turcica bottom repair material support ware take-out device, including handle, the surface of handle is provided with antiskid boss, by setting up take-out catheter and claw can pull connecting rod to make connecting rod drive claw move, to make claw enter the inside of take-out catheter, at this time, take-out catheter is inserted into the position needing to take out support net, it can be driven by connecting rod to make connecting rod drive claw from the inside of take-out catheter to stretch out, the claw is aimed at the end of support net and pulls connecting rod, it can drive claw to move and make several groups of claw close, to hold the end of support net by several groups of claw, and pull support net into the inside of take-out catheter, at this time, take-out catheter is taken out from the inside of the tissue of patient, and the take-out operation to support net can be completed, only need to cut the incision that can accommodate and insert take-out catheter in the epidermis of patient, the epidermis incision of patient is relatively smaller, conducive to the later recovery of patient.
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Description

Technical Field

[0001] This utility model relates to the field of nasal saddle floor repair technology, specifically a disposable nasal saddle floor repair material support removal device. Background Technology

[0002] Following transnasal surgery, short-term support, fixation, and pressure are needed to stop bleeding from the repair material. Currently, disposable transnasal supports are used for this purpose. These disposable transnasal supports are made of medical materials such as shape-memory nickel-titanium wire, offering good flexibility and biocompatibility.

[0003] Currently, some existing disposable transnasal support devices require surgical forceps or clips for removal. However, the use of surgical forceps or clips requires relatively more space for operation and adjustment, resulting in a relatively large incision on the patient's skin during removal, which is not conducive to the patient's later recovery. To address this issue, we propose a disposable transnasal sella turcica support device removal device to solve or improve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a disposable transnasal saddle floor repair material support removal device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A disposable transnasal saddle floor repair material support removal device includes a handle, a removal catheter fixed inside the handle, a connecting rod inserted inside the removal catheter, a handle fixed at the bottom end of the connecting rod, and a support net disposed on one side of the top of the removal catheter.

[0007] A connecting plate is fixed to the top of the connecting rod. A groove is provided on the inner surface of the extraction tube. Several sets of grooves are arranged circumferentially on the inner surface of the extraction tube. A slider is slidably installed inside the groove. The number of sliders is the same as the number of grooves.

[0008] As a preferred embodiment of this utility model, one end of the slide is fixed to the surface of the connecting plate, a fixing member is fixed to the surface of the slider, and a fixing rod is fixed to the inner surface of the fixing member.

[0009] As a preferred embodiment of this utility model, a rotating sleeve is fitted onto the surface of the fixing rod, the rotating sleeve is rotatably connected to the fixing rod, and a hook is fixed to the surface of the rotating sleeve.

[0010] As a preferred embodiment of this utility model, a guide plate is fixed to the surface of the connecting plate, and two sets of guide plates are symmetrically fixed on both sides of a set of hooks.

[0011] As a preferred embodiment of this utility model, a guide rod is fixed to the surface of the hook claw, and two sets of guide rods are symmetrically fixed to the surface of a set of hook claws.

[0012] As a preferred embodiment of this utility model, the guide plate has a guide groove inside, and the guide rod is inserted into the guide groove and slidably connected to the guide groove.

[0013] As a preferred embodiment of this utility model, a torsion spring is sleeved on the surface of the fixing rod, and two sets of torsion springs are symmetrically sleeved on the surface of a set of fixing rods.

[0014] As a preferred embodiment of this utility model, one end of the torsion spring is fixed to the surface of the rotating sleeve, and the other end of the torsion spring is fixed to the surface of the fixing member.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. In this utility model, by setting up a removal catheter and hooks, when it is necessary to remove the support net, the connecting rod is pulled to move the hooks, thereby allowing the hooks to enter the interior of the removal catheter. At this time, the removal catheter is inserted into the position where the support net needs to be removed. Then, by pushing the connecting rod, the connecting rod moves the hooks out from the interior of the removal catheter. Aligning the hooks with one end of the support net and pulling the connecting rod will move the connecting rod to move the hooks and close several sets of hooks. Thus, the several sets of hooks clamp one end of the support net and pull the support net into the interior of the removal catheter. At this time, the removal catheter is removed from the patient's tissue, thus completing the removal of the support net. Only an incision is needed on the patient's epidermis to accommodate and insert the removal catheter. The patient's epidermal incision is relatively small, which is beneficial to the patient's later recovery.

[0017] 2. In this utility model, the addition of a handle makes it easier for personnel to pull or push the connecting rod, and also facilitates operation by medical staff while wearing gloves, thus improving the convenience of using the device. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the extraction catheter structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the slide groove structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the guide plate structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the torsion spring structure of this utility model;

[0023] Figure 6 This is a schematic diagram of the fixing rod structure of this utility model.

[0024] In the diagram: 1. Handle; 2. Take out the conduit; 3. Connecting rod; 4. Handle; 5. Hook; 6. Support net; 7. Connecting plate; 8. Slider; 9. Fixing component; 10. Slide groove; 11. Guide plate; 12. Guide rod; 13. Guide groove; 14. Torsion spring; 15. Rotating sleeve; 16. Fixing rod. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0026] For examples, please refer to Figures 1-6 This utility model provides a technical solution:

[0027] A disposable transnasal sellar floor repair material support removal device includes a handle 1 with anti-slip protrusions on its surface. These protrusions increase the contact area between the hand and the handle 1 surface, increasing friction and reducing or preventing slippage. A removal catheter 2 is fixed inside the handle 1. A connecting rod 3 is inserted inside the removal catheter 2. A handle 4 is fixed to the bottom of the connecting rod 3. Pulling or pushing the handle 4 moves the connecting rod 3, facilitating operation by personnel wearing gloves and improving usability. A support net is located on one side of the top of the removal catheter 2. 6. The support mesh 6 is woven from nickel-titanium alloy and has a mesh structure. A connecting plate 7 is fixed to the top of the connecting rod 3. When the connecting rod 3 moves, it will drive the fixed connecting plate 7 to move. A sliding groove 10 is provided on the inner surface of the take-out guide tube 2. Several sets of sliding grooves 10 are arranged circumferentially on the inner surface of the take-out guide tube 2. A slider 8 is slidably installed inside the sliding groove 10. The number of sliders 8 is the same as the number of sliding grooves 10. The sliders 8 can slide inside the sliding groove 10. One end of the sliding groove 10 is fixed to the surface of the connecting plate 7. When the connecting plate 7 moves, it will drive the fixed sliding groove 10 to move. A fixing member 9 is fixed to the surface of the slider 8. The number of fixing members 9 is the same as the number of sliders 8. When the slider 8 moves, it will drive the fixed fixing member 9 to move. A fixing rod 1 is fixed to the inner surface of the fixing member 9. 6. The number of fixing rods 16 is the same as the number of fixing parts 9. A rotating sleeve 15 is fitted onto the surface of the fixing rod 16. The rotating sleeve 15 is rotatably connected to the fixing rod 16. The number of rotating sleeves 15 is the same as the number of fixing rods 16. Hooks 5 are fixed to the surface of the rotating sleeve 15. The number of hooks 5 is the same as the number of rotating sleeves 15. A guide plate 11 is fixed to the surface of the connecting plate 7. Two sets of guide plates 11 are symmetrically fixed on both sides of a set of hooks 5. When the connecting plate 7 moves, it will drive the fixed guide plates 11 to move. A guide rod 12 is fixed to the surface of the hooks 5. Two sets of guide rods 12 are symmetrically fixed to the surface of a set of hooks 5. When the hooks 5 rotate around the rotating sleeve 15, the hooks 5 will drive the guide rods 12 to move. The guide plate 11 has a guide opening inside. The guide rod 12 is inserted into and slidably connected to the guide groove 13. The guide rod 12 is an elastic element. When the pawl 5 rotates and drives the guide rod 12 to move, causing it to move within the guide groove 13, the guide rod 12 will be compressed, causing it to deform. This allows the guide rod 12 to move along the guide groove 13 at a certain arc within the guide groove 13. A torsion spring 14 is sleeved on the surface of the fixing rod 16. Two sets of torsion springs 14 are symmetrically sleeved on the surface of one set of fixing rods 16. One end of the torsion spring 14 is fixed to the surface of the rotating sleeve 15, and the other end is fixed to the surface of the fixing member 9. When the pawl 5 rotates and drives the rotating sleeve 15 to rotate, the rotating sleeve 15 will drive one end of the torsion spring 14 to rotate.When there is no external interference, the torsion spring 14 will drive the rotating sleeve 15 to rotate, which in turn drives the hook 5 to rotate. This causes the hook 5 to remain open via the torsion spring 14. When the connecting rod 3 is pulled, the guide rod 12 slides along the guide groove 13, forcing the hook 5 to close.

[0028] The working process of this utility model is as follows: When it is necessary to remove the support net 6, first pull the handle 4 to move the connecting rod 3. When the connecting rod 3 moves, it will move the connecting plate 7, which in turn will move the slider 8. When the slider 8 moves, it will move the fixed rod 16. When the fixed rod 16 moves, it will move the rotating sleeve 15 on the surface, which will then move the fixed hook 5. The hook 5 will move into the inside of the removal catheter 2. During the movement, the surface of the hook 5 will contact the inner surface of the removal catheter 2, which will compress the hook 5 and cause it to rotate. After the hook 5 enters the inside of the removal catheter 2, an incision adapted to the removal catheter 2 is made in the patient's epidermis, and one end of the removal catheter 2 can be inserted into the patient's tissue through the incision. Inside, the extraction catheter 2 is inserted to the position where the support net 6 needs to be removed. By pushing the connecting rod 3, the hooks 5 extend out from inside the extraction catheter 2. Aligning several sets of hooks 5 with one end of the support net 6 and pulling the connecting rod 3 will cause the connecting rod 3 to move the connecting plate 7. This causes the connecting plate 7 to move the hooks 5 through the slider 8, the fixing part 9, the fixing rod 16, and the rotating sleeve 15, and close the several sets of hooks 5. This clamps one end of the support net 6 and pulls the support net 6 into the interior of the extraction catheter 2. At this point, the extraction catheter 2 is removed from the patient's tissue, completing the removal of the support net 6. Only a small incision needs to be made in the patient's epidermis to accommodate and insert the extraction catheter 2, which is beneficial for the patient's later recovery.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A disposable transnasal saddle floor repair material support removal device, comprising a handle (1), a removal catheter (2) fixed inside the handle (1), a connecting rod (3) inserted inside the removal catheter (2), a handle (4) fixed to the bottom end of the connecting rod (3), and a support net (6) disposed on one side of the top of the removal catheter (2), characterized in that: The top end of the connecting rod (3) is fixed with a connecting plate (7). The inner surface of the extraction conduit (2) is provided with a sliding groove (10). Several sets of sliding grooves (10) are arranged circumferentially on the inner surface of the extraction conduit (2). A slider (8) is slidably installed inside the sliding groove (10). The number of sliders (8) is the same as the number of sliding grooves (10).

2. The disposable transnasal saddleback repair material support removal device according to claim 1, characterized in that, One end of the slide (10) is fixed to the surface of the connecting plate (7), and a fixing member (9) is fixed to the surface of the slider (8). A fixing rod (16) is fixed to the inner surface of the fixing member (9).

3. The disposable transnasal saddleback repair material support removal device according to claim 2, characterized in that, The surface of the fixed rod (16) is fitted with a rotating sleeve (15), which is rotatably connected to the fixed rod (16). The surface of the rotating sleeve (15) is fixed with a claw (5).

4. The disposable transnasal saddleback repair material support removal device according to claim 3, characterized in that, The surface of the connecting plate (7) is fixed with a guide plate (11), and two sets of guide plates (11) are symmetrically fixed on both sides of a set of hooks (5).

5. The disposable transnasal saddleback repair material support removal device according to claim 4, characterized in that, The surface of the hook (5) is fixed with a guide rod (12), and two sets of guide rods (12) are symmetrically fixed on the surface of a set of hooks (5).

6. The disposable transnasal saddle floor repair material support removal device according to claim 5, characterized in that, The guide plate (11) has a guide groove (13) inside, and the guide rod (12) is inserted into the guide groove (13) and slidably connected to the guide groove (13).