In-vivo tragus cartilage intercepting device

Abstract

The utility model relates to the technical field of otology surgery, and discloses an in-vivo tragus cartilage intercepting device, the in-vivo tragus cartilage intercepting device comprises a handle assembly and a cutting assembly, the handle assembly comprises a first clamping arm and a second clamping arm, the first clamping arm and the second clamping arm are hinged and can be stressed to get close to each other or get away from each other, and the cutting assembly is connected with the handle assembly. The cutting assembly comprises a cutting ring and a cutting disc, the cutting ring is connected to the end of the first clamping arm, the cutting disc is connected to the end of the second clamping arm, the size of the cutting ring and the size of the cutting disc are adjustable, the cutting ring and the cutting disc are oppositely arranged, and the cutting disc can be clamped into the cutting ring along with mutual approaching of the first clamping arm and the second clamping arm. And the tragus cartilage is cut. The in-vivo tragus cartilage intercepting device can be used for intercepting the required tragus cartilage, so that the waste of the tragus cartilage is reduced, and the tragus form is maintained.

Description

Technical Field

[0001] This utility model relates to the field of otological surgery technology, and in particular to an in vivo tragus cartilage harvesting device. Background Technology

[0002] With the development of endoscopic techniques in otological surgery, endoscopic repair of perforated tympanic membranes offers advantages such as minimal invasiveness, direct visualization, and wide-angle access. Currently, endoscopic repair of the tympanic membrane often utilizes a tragus cartilage-perichondrium composite, resulting in minimal tragus incision damage, convenient material harvesting, and minimal impact on appearance, making it easily acceptable to patients. The current procedure is generally performed under direct visualization, requiring the separation of the anterior and posterior surfaces of the tragus cartilage to harvest the largest possible piece. This cartilage is then trimmed according to the surgeon's experience, typically to a size similar to the tympanic ring to accommodate tympanic membrane reconstruction. Currently, ophthalmic scissors are primarily used, but their sharp tips can easily tear the tragus skin or cartilage, making it difficult to control the amount of cartilage harvested. Furthermore, the trimming of the cartilage after harvesting takes up considerable surgical time, and the excess cartilage is unusable. Additionally, the removal of large pieces of tragus cartilage results in a loss of the tragus support structure, potentially affecting the patient's later use of hearing aids or headphones.

[0003] Therefore, there is an urgent need for an in vivo tragus cartilage harvesting device to solve the above problems. Utility Model Content

[0004] Based on the above, the purpose of this utility model is to provide an in vivo tragus cartilage harvesting device to harvest the required tragus cartilage, reduce tragus cartilage waste, and maintain the shape of the tragus.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An in vivo tragus cartilage harvesting device includes:

[0007] The handle assembly includes a first clamping arm and a second clamping arm, which are rotatably connected and can be brought closer to or moved away from each other under force.

[0008] A cutting assembly includes a cutting ring and a cutting disc. The cutting ring is connected to the end of a first clamping arm, and the cutting disc is connected to the end of a second clamping arm. The sizes of the cutting ring and the cutting disc are adjustable. The cutting ring and the cutting disc are arranged opposite to each other, and the cutting disc can be engaged in the cutting ring as the first clamping arm and the second clamping arm move closer to each other to cut the tragus cartilage.

[0009] As a preferred embodiment of an in vivo tragus cartilage harvesting device, the end of the first clamping arm is provided with a first connecting rod, the cutting ring is connected to a second connecting rod, and the end of the first connecting rod or the second connecting rod is provided with a first locking interface, through which the first connecting rod and the second connecting rod are detachably plugged in or threadedly connected; the end of the second clamping arm is provided with a third connecting rod, the cutting disc is connected to a fourth connecting rod, and the end of the third connecting rod or the fourth connecting rod is provided with a second locking interface, through which the third connecting rod and the fourth connecting rod are detachably plugged in or threadedly connected.

[0010] As a preferred embodiment of an in vivo tragus cartilage harvesting device, the cutting disc is disc-shaped, the inner ring of the cutting ring is perfectly circular, and the outer diameter of the cutting disc is adapted to the inner diameter of the cutting ring.

[0011] As a preferred embodiment of an in vivo tragus cartilage harvesting device, the outer diameter of the cutting disc and the inner diameter of the cutting ring are both 8-10 mm, and the difference between the inner and outer diameters of the cutting ring is 1.5 mm-2 mm.

[0012] As a preferred embodiment of an in vivo tragus cartilage harvesting device, the end of the first clamping arm away from the cutting ring is elastically hinged to the end of the second clamping arm away from the cutting disc.

[0013] As a preferred embodiment of an in vivo tragus cartilage harvesting device, the first clamping arm and the second clamping arm are cross-hinged, the end of the first clamping arm away from the cutting ring is provided with a first hand ring, and the end of the second clamping arm away from the cutting disc is provided with a second hand ring.

[0014] As a preferred embodiment of an in vivo tragus cartilage harvesting device, the first clamping arm has a first limiting step protruding from the end away from the cutting ring toward the second clamping arm, and the second clamping arm has a second limiting step protruding from the end away from the cutting disc toward the first clamping arm, with the first limiting step and the second limiting step engaging in a limiting cooperation.

[0015] As a preferred embodiment of an in vivo tragus cartilage harvesting device, at the hinge where the first clamping arm and the second clamping arm intersect, the first clamping arm is provided with a receiving groove, the second clamping arm passes through the receiving groove, and is hinged to the two side groove arms of the receiving groove via a hinge shaft; or the second clamping arm is provided with a receiving groove, the first clamping arm passes through the receiving groove, and is hinged to the two side groove arms of the receiving groove via a hinge shaft.

[0016] As a preferred embodiment of an in vivo tragus cartilage harvesting device, a cutting skirt is formed extending from the outer periphery of the cutting disc toward the cutting ring. When the cutting disc is engaged into the cutting ring as the first clamping arm and the second clamping arm approach each other, the cutting skirt fits against the inner wall of the cutting ring.

[0017] As a preferred embodiment of an in vivo tragus cartilage harvesting device, the cutting disc has a push hole.

[0018] The beneficial effects of this utility model are as follows:

[0019] This invention provides an in vivo tragus cartilage harvesting device, including a handle assembly and a cutting assembly. By applying force to a first clamping arm and a second clamping arm in the handle assembly, they move closer or further apart, causing a cutting ring and a cutting disc, detachably connected to the first and second clamping arms respectively, to move closer or further apart. The tragus cartilage between the cutting disc and the cutting ring is cut, and the cutting ring facilitates the removal of the tragus cartilage, saving harvesting time. Furthermore, the dimensions of both the cutting ring and the cutting disc are adjustable, allowing for the harvesting of different sizes of tragus cartilage to suit various patient conditions. This in vivo tragus cartilage harvesting device can quickly and accurately harvest the required cartilage, shortening surgical time and avoiding cartilage waste, meeting the requirements for cartilage fabrication in tympanoplasty. Moreover, because it can precisely harvest the required cartilage size, it prevents tragus collapse caused by excessive cartilage harvesting, thus maintaining the shape of the tragus. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of an in vivo tragus cartilage harvesting device provided in one embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of the structure of an in vivo tragus cartilage harvesting device provided in another embodiment of the present invention.

[0023] In the picture:

[0024] 1. Handle assembly; 11. First gripping arm; 111. First hand ring; 112. First limiting step; 12. Second gripping arm; 121. Second hand ring; 122. Second limiting step; 13. Receiving groove; 2. Cutting assembly; 21. Cutting ring; 22. Cutting disc. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0026] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0028] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used solely for ease of description and simplification of operation, 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. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. Furthermore, the terms "first" and "second" are merely used for descriptive distinction and have no special meaning.

[0029] like Figure 1 and Figure 2As shown, this embodiment provides an in vivo tragus cartilage harvesting device, which includes a handle assembly 1 and a cutting assembly 2. The handle assembly 1 includes a first clamping arm 11 and a second clamping arm 12, which are hinged together and can be brought closer or further apart under force. The cutting assembly 2 includes a cutting ring 21 and a cutting disc 22. The cutting ring 21 is connected to the end of the first clamping arm 11, and the cutting disc 22 is connected to the end of the second clamping arm 12. The sizes of the cutting ring 21 and the cutting disc 22 are adjustable. The cutting ring 21 and the cutting disc 22 are arranged opposite to each other, and the cutting disc 22 can be engaged into the cutting ring 21 as the first clamping arm 11 and the second clamping arm 12 move closer together to cut the tragus cartilage. By applying force to the first clamping arm 11 and the second clamping arm 12 in the handle assembly 1, they move closer or further apart, causing the cutting ring 21 and the cutting disc 22, which are detachably connected to the first clamping arm 1112 and the second clamping arm respectively, to move closer or further apart. The tragus cartilage between the cutting disc 22 and the cutting ring 21 is cut, and the cutting ring 21 facilitates the removal of the tragus cartilage, saving harvesting time. Furthermore, the dimensions of both the cutting ring 21 and the cutting disc 22 are adjustable, allowing for the harvesting of different sizes of tragus cartilage to suit different patients. This in vivo tragus cartilage harvesting device can quickly and accurately harvest the required cartilage, shortening the operation time and avoiding cartilage waste, meeting the requirements for cartilage fabrication in tympanoplasty. Moreover, because it can precisely harvest the cartilage size, it prevents tragus collapse caused by excessive cartilage harvesting, thus maintaining the shape of the tragus.

[0030] To improve the versatility and practicality of this in vivo tragus cartilage harvesting device, a first connecting rod (not shown in the figure) is provided at the end of the first clamping arm 11, and a second connecting rod (not shown in the figure) is connected to the cutting ring 21. A first locking interface is provided at the end of either the first or second connecting rod, allowing for detachable insertion or threaded connection between the first and second connecting rods. A third connecting rod (not shown in the figure) is provided at the end of the second clamping arm 12, and a fourth connecting rod (not shown in the figure) is connected to the cutting disc 22. A second locking interface is provided at the end of either the third or fourth connecting rod, allowing for detachable insertion or threaded connection between the third and fourth connecting rods. This facilitates the detachable installation of cutting rings 21 and cutting discs 22 of different sizes to harvest tragus cartilage of different sizes, thus adapting to patients in different situations. Of course, in other embodiments, the first and second connecting rods can also be overlapped and connected by screws, and / or the third or fourth connecting rods can be overlapped and connected by screws.

[0031] Specifically, the cutting disc 22 is disc-shaped, and the inner ring of the cutting ring 21 is circular, both of which are adapted to the shape of the tympanic membrane. The outer diameter of the cutting disc 22 is adapted to the inner diameter of the cutting ring 21, which facilitates cutting when the cutting disc 22 and the cutting ring 21 are set opposite each other.

[0032] For example, the outer diameter of the cutting disc 22 and the inner diameter of the cutting ring 21 are both 8-10 mm. The outer diameter of the cutting disc 22 and the inner diameter of the cutting ring 21 can be set to 8 mm, 9 mm, or 10 mm. In this embodiment, 9 mm is preferred, but the specific value can be determined according to the actual situation. The difference between the inner diameter and the outer diameter of the cutting ring 21 is 1.5 mm-2 mm. Specifically, it can be set to 1.5 mm, 1.8 mm, or 2 mm. In this embodiment, 2 mm is preferred, but the specific value can be determined according to the actual situation.

[0033] In another embodiment, the outer periphery of the cutting disc 22 extends toward the cutting ring 21 and is provided with a cutting skirt. When the cutting disc 22 is inserted into the cutting ring 21 as the first clamping arm 11 and the second clamping arm 12 approach each other, the cutting skirt fits against the inner wall of the cutting ring 21, making the operation simple. The cutting skirt provides better shearing force, which can quickly and accurately cut the tragus cartilage.

[0034] Preferably, the cutting disc 22 has a push hole to facilitate the removal of the tragus cartilage located within the cutting disc 22 and the cutting skirt after cutting, thus facilitating the acquisition of the cut tragus cartilage. One or more push holes may be provided, depending on the specific circumstances.

[0035] In one embodiment, such as Figure 1 As shown, the end of the first clamping arm 11 away from the cutting ring 21 is elastically hinged to the end of the second clamping arm 12 away from the cutting disc 22. For example, the first clamping arm 11 and the second clamping arm 12 are hinged by a torsion spring, or the first clamping arm 11 and the second clamping arm 12 are connected by a pin, and a compression elastic element is provided between the first clamping arm 11 and the second clamping arm 12. The compression elastic element includes a compression spring, elastic rubber, etc., and is determined according to the actual situation. The compression elastic element can be compressed or restored by pressing or releasing the first clamping arm 11 and the second clamping arm 12, thereby achieving the purpose of moving the cutting ring 21 and the cutting disc 22 closer or further apart. Alternatively, the first clamping arm 11 and the second clamping arm 12 are integrally formed from a spring sheet. In the initial state, the non-connected ends of the first clamping arm 11 and the second clamping arm 12 are far apart from each other, and the force applied to the first clamping arm 11 and the second clamping arm 12 can overcome the elasticity of the first clamping arm 11 and the second clamping arm 12 themselves, causing them to move closer together.

[0036] In another embodiment, such as Figure 2As shown, the first clamping arm 11 and the second clamping arm 12 are hinged together. The end of the first clamping arm 11 away from the cutting ring 21 is provided with a first hand ring 111, and the end of the second clamping arm 12 away from the cutting disc 22 is provided with a second hand ring 121. In use, the thumb is placed in the first hand ring 111 and the index finger is placed in the second hand ring 121. The thumb and index finger are used to clamp or release the first hand ring 111 and the second hand ring 121, thereby moving the cutting ring 21 and the cutting disc 22, which are respectively connected to the first clamping arm 11 and the second clamping arm 12, closer or further apart, to achieve the cutting purpose.

[0037] Preferably, the end of the first clamping arm 11 away from the cutting ring 21 protrudes towards the second clamping arm 12 and is provided with a first limiting step 112, and the end of the second clamping arm 12 away from the cutting disc 22 protrudes towards the first clamping arm 11 and is provided with a second limiting step 122, with the first limiting step 112 and the second limiting step 122 providing a limiting fit. This facilitates limiting the movement of the first clamping arm 11 and the second clamping arm 12 when they are in operation, improving operational stability and preventing misalignment of the first and second hand rings 111 and 121 when the applied force is too large, thus reducing surgical risks. The first limiting step 112 and the second limiting step 122 can be wavy, L-shaped, or L-shaped, all of which have a limiting effect; the specific design should be determined based on the actual situation.

[0038] More preferably, at the hinge point where the first clamping arm 11 and the second clamping arm 12 intersect, the first clamping arm 11 is provided with a receiving groove 13, and the second clamping arm 12 passes through the receiving groove 13 and is hinged to the two side arms of the receiving groove 13 via hinge pins; or the second clamping arm 12 is provided with a receiving groove 13, the first clamping arm 11 passes through the receiving groove 13 and is hinged to the two side arms of the receiving groove 13 via hinge pins. This structure ensures that when the first clamping arm 11 and the second clamping arm 12 rotate relative to each other, the second clamping arm 12 remains fixed in position relative to the first clamping arm 11 on a non-rotational plane, preventing misalignment of the first clamping arm 11 and the second clamping arm 12 and improving the operational stability of the first clamping arm 11 and the second clamping arm 12.

[0039] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. An in vivo tragus cartilage harvesting device, characterized in that, include: The handle assembly includes a first clamping arm and a second clamping arm, which are rotatably connected and can be brought closer to or moved away from each other under force. A cutting assembly includes a cutting ring and a cutting disc. The cutting ring is connected to the end of a first clamping arm, and the cutting disc is connected to the end of a second clamping arm. The sizes of the cutting ring and the cutting disc are adjustable. The cutting ring and the cutting disc are arranged opposite to each other, and the cutting disc can be engaged in the cutting ring as the first clamping arm and the second clamping arm move closer to each other to cut the tragus cartilage.

2. The in vivo tragus cartilage harvesting device according to claim 1, characterized in that, The cutting disc is disc-shaped, the inner ring of the cutting ring is perfectly circular, and the outer diameter of the cutting disc is matched with the inner diameter of the cutting ring.

3. The in vivo tragus cartilage harvesting device according to claim 1, characterized in that, The outer diameter of the cutting disc and the inner diameter of the cutting ring are both 8-10 mm, and the difference between the inner and outer diameters of the cutting ring is 1.5-2 mm.

4. The in vivo tragus cartilage harvesting device according to claim 1, characterized in that, The end of the first clamping arm away from the cutting ring is elastically hinged to the end of the second clamping arm away from the cutting disc.

5. The in vivo tragus cartilage harvesting device according to claim 1, characterized in that, The first clamping arm and the second clamping arm are cross-hinged. The end of the first clamping arm away from the cutting ring is provided with a first hand ring, and the end of the second clamping arm away from the cutting disc is provided with a second hand ring.

6. The in vivo tragus cartilage harvesting device according to claim 5, characterized in that, The first clamping arm has a first limiting step protruding from the end away from the cutting ring toward the second clamping arm, and the second clamping arm has a second limiting step protruding from the end away from the cutting disc toward the first clamping arm. The first limiting step and the second limiting step cooperate in a limiting manner.

7. The in vivo tragus cartilage harvesting device according to claim 5, characterized in that, At the hinge where the first clamping arm and the second clamping arm intersect, the first clamping arm is provided with a receiving groove, the second clamping arm passes through the receiving groove and is hinged to the two side groove arms of the receiving groove by a hinge shaft; or the second clamping arm is provided with a receiving groove, the first clamping arm passes through the receiving groove and is hinged to the two side groove arms of the receiving groove by a hinge shaft.

8. The in vivo tragus cartilage harvesting device according to claim 1, characterized in that, A cutting skirt is formed on the outer periphery of the cutting disc extending towards the cutting ring. When the cutting disc is inserted into the cutting ring as the first clamping arm and the second clamping arm approach each other, the cutting skirt fits against the inner wall of the cutting ring.

9. The in vivo tragus cartilage harvesting device according to claim 8, characterized in that, The cutting disc has push holes.

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