Nasal septum suturing device

Abstract

The utility model provides a kind of nasal septum suture device, including suture piece and pusher, and suture piece has connecting portion and the limiting portion being arranged at the both ends of connecting portion, and limiting portion has deformation force.Pusher has accommodating cavity, suture piece is used to accommodate suture piece, and suture piece is sent to the suture puncture hole of nasal septum.Suture piece has the first state of the axial bending of limiting portion towards connecting portion, suture piece has the second state of the deformation recovery of limiting portion, after suture piece passes through suture puncture hole with first state, gradually transform into second state, and two limiting portions respectively abut the side of two nasal septum mucosa that deviates.By the suture piece with deformation ability realizes self-expanding fixation in nasal cavity, improve the defect that the operation space of traditional needle holder is limited, avoid the mucosa scraping injury caused by traditional suture needle moving in nasal cavity, significantly reduce intraoperative secondary injury risk.

Description

Technical Field

[0001] This utility model relates to otolaryngological instruments, and in particular to a nasal septum suturing device. Background Technology

[0002] Patients with deviated nasal septum may experience symptoms such as nasal congestion, headache, and nosebleeds, which affect their quality of life. Currently, endoscopic septoplasty is the most common treatment for deviated nasal septum. Endoscopic septoplasty requires incising one side of the nasal septum mucosa under endoscopic guidance, separating the mucocartilaginous membrane, removing the deviated cartilage and the perpendicular plate of the ethmoid bone, relieving cartilage tension, centering the nasal septum, repositioning the mucocartilaginous membrane, and finally performing a through-suture fixation. Due to the narrow space within the nasal cavity, suturing with existing needle holders is very difficult, especially since the needle holder enters the nasal cavity through the relatively narrow nostril and moves it within the nasal cavity to the required suturing position. During this process, the needle can easily cause collateral damage to the nostril and nasal cavity.

[0003] Therefore, how to reduce the damage to the nasal cavity during septoplasty is a technical problem that needs to be solved in this field. Utility Model Content

[0004] To address the aforementioned issues, the present invention aims to provide a nasal septum suturing device. This device delivers the suture in a first state (compressed and bent) via a pusher, and after passing through the puncture hole, it automatically returns to a second state (unfolded). The device utilizes the elastic deformation characteristics of the limiting part to achieve mucosal clamping and fixation, avoiding mucosal scraping damage caused by the movement of traditional suture needles within the nasal cavity, and significantly reducing the risk of secondary damage during surgery.

[0005] This utility model is achieved through the following technical solution:

[0006] A nasal septum suture device, comprising:

[0007] A sewing piece having a connecting portion and limiting portions disposed at both ends of the connecting portion; the limiting portions having a deformation force;

[0008] A pusher having a receiving cavity, the suture being used to receive the suture and deliver the suture to the suture puncture hole of the nasal septum;

[0009] The suture has a first state in which the limiting part is axially bent toward the connecting part, and a second state in which the limiting part recovers its deformation. After the suture passes through the suture puncture hole in the first state, it gradually transforms into the second state, and the two limiting parts respectively abut against the opposite side of the two nasal septum mucosa.

[0010] Furthermore, the limiting part is connected to at least two wings that are connected to the connecting part, and the angle between the wings and the connecting part is 85°-90°; the wings are arranged in a centrally symmetrical manner.

[0011] Furthermore, the pusher includes:

[0012] The outer shell includes a pusher portion and a head connected to the pusher portion, the receiving cavity extending through the pusher portion and the head, the head being used to extend into the patient's nasal cavity; the angle between the head and the pusher portion is 90-130°;

[0013] A push rod, wherein a portion of the push rod is housed within the receiving cavity and is slidable along the receiving cavity.

[0014] Furthermore, the end of the head furthest from the pushing part is configured as a pointed tip for piercing the nasal septum to form a suture puncture hole.

[0015] Furthermore, the push rod includes a thrust section and a deformation section. The deformation section is located at the end of the thrust section facing the head, and the length of the deformation section is greater than or equal to the length of the head. The end of the deformation section away from the thrust section is adapted to the size of the accommodating cavity of the head.

[0016] Furthermore, the deformable segment is made of rubber or silicone.

[0017] Furthermore, a limiting block is provided at the end of the push rod away from the head, and the outer diameter of the limiting block is larger than the inner diameter of the push part.

[0018] Furthermore, the inner diameter of the head is smaller than the inner diameter of the pushing part.

[0019] Furthermore, when the stitched piece is in the first state, the two limiting portions bend toward each other in a direction away from each other.

[0020] Furthermore, the suture is made of at least one of the following: shape memory alloy, medical titanium alloy, medical polymer material, and biodegradable biomaterial.

[0021] Compared with the prior art, the technical solution of this utility model and its beneficial effects are as follows:

[0022] (1) The nasal septum suturing device of this utility model includes a suture piece that can switch between a first state and a second state, and a pusher, so that the suture piece can pass through the suturing puncture hole of the nasal septum with a small volume (first state), thereby reducing friction and damage to the nasal cavity tissues. When the suture piece reaches the suturing position, the limiting part restores its deformation (second state), and the two limiting parts abut against the opposite sides of the two nasal septum mucosa, which can effectively fix the suture position, avoid suture displacement, and improve the stability and reliability of the suture. At the same time, the pusher enables the suture piece to be accurately delivered to the suturing puncture hole of the nasal septum, making the operation more convenient, further reducing the difficulty of the operation and the risk of damage to the nasal cavity, and improving the safety and effectiveness of nasal septum surgery overall.

[0023] (2) In this utility model, the limiting part is connected to at least two wings connected to the connecting part 110, and the angle between each wing and the connecting part is 85°-90°, so that the suture can provide sufficient clamping force to prevent slippage in the second state, while avoiding sharp angles from piercing the tissue. The wings are arranged in a centrally symmetrical manner, which makes the force on the suture in the nasal cavity more balanced, prevents the suture from rotating and shifting, and improves the fixation stability.

[0024] (3) The inner diameter of the head of this utility model is smaller than the inner diameter of the pushing part. The inner diameter of the pushing part is larger, which makes it easier for the sewing piece to be bent into the first state and put into the receiving cavity. The smaller inner diameter of the head generates a constraint force on the sewing piece in the compressed state (first state), ensuring that the sewing piece maintains the preset shape before reaching the target position, avoiding positioning deviation caused by premature unfolding. At the same time, the tube wall of the head guides the sewing piece, improving the release accuracy. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of the sewing piece provided in an embodiment of the present invention (second state);

[0026] Figure 2 This is a schematic diagram (first state) of the suture material built into the pusher according to an embodiment of the present invention;

[0027] Figure 3 This is a diagram showing the state of the sewn piece after it has been sewn, according to an embodiment of this utility model.

[0028] Figure 4 This is a cross-sectional view of the nasal septum suture device provided in an embodiment of this utility model.

[0029] Illustration:

[0030] Nasal septum mucosa - A;

[0031] Sewing part-100; Connecting part-110; Limiting part-120;

[0032] Pusher-200;

[0033] Outer shell - 210; Pushing part - 211; Head - 212; Tip - 2121; Receiving cavity - 213;

[0034] Push rod-220; Thrust section-221; Deformation section-222; Limit block-223. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0036] See Figures 1 to 3 A nasal septum suturing device includes a suture 100 and a pusher 200. The suture 100 is used to suture the nasal septum, and the pusher 200 is used to deliver the suture to the position on the nasal septum where suturing is required.

[0037] The sewing piece 100 has a connecting portion 110 and a limiting portion 120 disposed at both ends of the connecting portion 110. The limiting portion 120 has a deformation force, which causes the sewing piece 100 to have a first state in which the limiting portion 120 is axially bent toward the connecting portion 110, and a second state in which the sewing portion 100 returns to its deformed state.

[0038] The pusher has a receiving cavity 230, and the suture 100 is placed in the receiving cavity 230 in a first state, such as Figure 2 The device is pushed to the site to be sutured, and after passing through the suture puncture hole in the first state, it gradually transitions to the second state, with the two limiting parts respectively abutting the opposite sides of the nasal septum mucosa, such as... Figure 3 .

[0039] The suture 100 can switch between a first state and a second state, allowing it to pass through the suture puncture site of the nasal septum with a smaller volume (first state), thereby reducing friction and damage to the nasal cavity tissues. Once the suture reaches the suture position, the limiting portion returns to its original shape (second state), with the two limiting portions abutting the opposite sides of the two nasal septum mucosa, effectively fixing the suture position, preventing suture displacement, and improving the stability and reliability of the suture. Simultaneously, the pusher allows the suture to be accurately delivered to the suture puncture site of the nasal septum, making the operation more convenient, further reducing the surgical difficulty and the risk of damage to the nasal cavity, and overall improving the safety and effectiveness of nasal septum surgery.

[0040] In this embodiment, the suture 100 is made of at least one of the following: shape memory alloy, medical titanium alloy, medical polymer material, and biodegradable biomaterial. Using a shape memory metal, such as a nickel-titanium alloy, provides superelasticity and shape memory effect, utilizing body temperature-triggered recovery characteristics to avoid additional activation, thus matching human adaptability and meeting the requirements of minimally invasive surgery. Using medical polymer materials, such as medical silicone or medical rubber, provides good recovery deformation force. The material of the suture 100 can be adjusted according to manufacturing processes, which will not be elaborated further here.

[0041] The limiting portion 120 includes at least two wings connected to the connecting portion 110, each wing forming an angle of 85°-90° with the connecting portion. This ensures that, in the second state, the suture 100 provides sufficient clamping force to prevent slippage while avoiding sharp angles that could puncture tissue. The wings better conform to the opposite side of the nasal septum mucosa, thereby improving suture stability. There can also be three, four, or more wings, arranged centrally symmetrically to ensure more balanced force on the suture within the nasal cavity, preventing rotation and displacement of the suture and enhancing fixation stability. In the first state, the two limiting portions 120 are bent in opposite directions, allowing the limiting portions 120 to unfold and conform to the opposite sides of the two nasal septum mucosa when the suture 100 passes through the suture puncture hole.

[0042] See Figure 4The pusher 200 includes a housing 210 and a push rod 220 partially housed within a receiving cavity 213. The housing 210 includes a pushing part 211 and a head 212 connected to the pushing part 211. The receiving cavity 213 extends through the pushing part 211 and the head 212, with the head 212 extending into the patient's nasal cavity. The push rod 220 is partially housed within the receiving cavity and can slide along the cavity. The push rod 220 pushes the suture 100, which is in a first state and is housed within the receiving cavity 213, along the cavity to the end of the head 212. The suture 100, in its first state, passes through the nasal septum from the suture puncture hole. In this embodiment, the angle between the head and the pushing part is 90-130°. The inner diameter of the head 212 is smaller than the inner diameter of the pushing part 211. The inner diameter of the pushing part 211 is larger, which makes it easier for the sewing piece 100 to be bent into the first state and placed into the receiving cavity 213. The smaller inner diameter of the head 212 exerts a restraining force on the sewing piece 100 in the compressed state (first state), ensuring that the sewing piece 100 maintains the preset shape before reaching the target position, avoiding positioning deviation caused by premature unfolding. At the same time, the tube wall of the head 212 guides the sewing piece 100, improving the release accuracy.

[0043] The end of the head 212 away from the pusher 211 is set as a tip, which is used to puncture the nasal septum to form a suture puncture hole. This avoids the need to use additional puncture tools to form a suture puncture hole, simplifies the surgical procedure, reduces the number of surgical instruments used and the complexity of the operation, reduces the number of times instruments are inserted and removed and the resulting mucosal abrasion, and at the same time ensures that the puncture hole and the suture are precisely matched in size.

[0044] The push rod 220 includes a pushing section 221 and a deformation section 222, with the deformation section 222 located at the end of the pushing section 221 facing the head 212. The deformation section 222 at the end of the push rod 220 adaptively bends, allowing the push rod 220 to better adapt to the internal structure of the pusher when pushing the suture 100, preventing instrument deformation or suture jamming caused by the rigid push rod 220, thereby ensuring the smoothness of the pushing process. In this embodiment, the deformation section 222 is made of rubber or silicone. It is understood that the length of the deformation section 222 is greater than or equal to the length of the head 212, so that the push rod 220 can completely push the suture 100 out of the receiving cavity 213. The end of the deformation section 222 away from the pushing section 221 is adapted to the size of the receiving cavity of the head 212. In this embodiment, the middle region of the deformation section 222 is concave to form a gap with the receiving cavity of the head, thereby reducing the frictional force of the deformation section 222 sliding within the receiving cavity 213.

[0045] A limit block 223 is provided at the end of the push rod 220 away from the head 212. The outer diameter of the limit block 223 is larger than the inner diameter of the push part. The limit block forms a mechanical stop on the movement of the push rod 220, limiting the stroke of the push rod 220 and preventing excessive pushing that could lead to risks.

[0046] Using the nasal septum suture device: ① Bend the suture 100 into an "I" shape (first state) and insert it into the receiving cavity of the pusher 200. ② Under nasal endoscopy, insert the head 212 into one nasal cavity. After reaching the target position, pierce the nasal septum with the tip of the head 212 and enter the other nasal cavity. ③ After seeing the tip of the head in the other nasal cavity, push the push rod 220 to push the first end of the suture 100 out of the receiving cavity until the limiting part of the first end is completely inserted into the other nasal cavity. ④ After the limiting part of the first end extends, push the push rod while retracting the head until the limiting part of the second end of the suture staple disengages from the receiving cavity and the head 212 exits the nasal cavity. ⑤ When the limiting part of the second end of the suture unfolds (second state), the two limiting parts 120 of the suture 100 abut against the opposite sides of the nasal septum mucosa, completing one suture.

[0047] The foregoing description illustrates and describes preferred embodiments of the present invention. It should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the present invention through the foregoing teachings or related technical or knowledge. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A nasal septum suture device, characterized in that, include: A sewing piece having a connecting portion and limiting portions disposed at both ends of the connecting portion; The limiting part has a deformation force; A pusher having a receiving cavity, the suture being used to receive the suture and deliver the suture to the suture puncture hole of the nasal septum; The suture has a first state in which the limiting part is axially bent toward the connecting part, and a second state in which the limiting part recovers its deformation. After the suture passes through the suture puncture hole in the first state, it gradually transforms into the second state, and the two limiting parts respectively abut against the opposite side of the two nasal septum mucosa.

2. The nasal septum suture device according to claim 1, characterized in that, The limiting part includes at least two wings connected to the connecting part, and the angle between each wing and the connecting part is 85°-90°; the wings are arranged in a centrally symmetrical manner.

3. The nasal septum suture device according to claim 1, characterized in that, The pusher includes: The outer shell includes a pusher portion and a head connected to the pusher portion, the receiving cavity extending through the pusher portion and the head, the head being used to extend into the patient's nasal cavity; the angle between the head and the pusher portion is 90-130°; A push rod, wherein a portion of the push rod is housed within the receiving cavity and is slidable along the receiving cavity.

4. The nasal septum suture device according to claim 3, characterized in that, The end of the head furthest from the pusher is set as a pointed tip, used to pierce the nasal septum to form a suture puncture hole.

5. The nasal septum suture device according to claim 3, characterized in that, The push rod includes a thrust section and a deformation section. The deformation section is located at the end of the thrust section facing the head. The length of the deformation section is greater than or equal to the length of the head. The end of the deformation section away from the thrust section is adapted to the size of the accommodating cavity of the head.

6. The nasal septum suture device according to claim 5, characterized in that, The deformable section is made of rubber or silicone.

7. The nasal septum suture device according to claim 3, characterized in that, A limiting block is provided at the end of the push rod away from the head, and the outer diameter of the limiting block is larger than the inner diameter of the push part.

8. The nasal septum suture device according to claim 3, characterized in that, The inner diameter of the head is smaller than the inner diameter of the pushing part.

9. The nasal septum suture device according to claim 1, characterized in that, When the stitched piece is in the first state, the two limiting portions bend toward each other in a direction away from each other.

10. The nasal septum suture device according to claim 1, characterized in that, The suture is made of at least one of the following: shape memory alloy, medical titanium alloy, medical polymer material, and biodegradable biomaterial.

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