Nasal septum stitching instrument

Abstract

The invention discloses a nasal septum stitching instrument which comprises a needle holding part and a stitching needle slidably connected into the needle holding part, the needle holding part comprises two fork heads capable of entering a nasal cavity, arc-shaped sliding grooves are formed in the two fork heads, and the circle centers of the two sliding grooves coincide so that the stitching needle can shuttle back and forth between the two sliding grooves; the sewing needle is a double-end needle, and clamping grooves are formed in the shaft side walls of the two ends of the sewing needle. Two driving rods are further included, one end of each driving rod is provided with a sliding block connected to the corresponding sliding groove in a sliding mode, and each sliding block is provided with a clamping head capable of being connected into the corresponding clamping groove; the two fork heads are provided with protrusions at the opposite ends of the sliding grooves and on the surfaces of the sides, close to the driving rods, of the two fork heads. When the driving rods make contact with the protrusions, the clamping heads are driven to be away from the clamping grooves. According to the nasal septum suturing device, a non-suturing area in the nasal cavity is isolated, the device does not depend on a visual assembly, blind operation can be truly achieved, safety is high, meanwhile, operation is very convenient and fast, dependence on experience of doctors is greatly reduced, and the efficiency and quality of nasal septum suturing operation are improved.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and more particularly to a nasal septum suture device. Background Technology

[0002] Nasal septum suturing is a routine procedure after nasal septum deviation correction or nasal surgery. It is mainly used to fix the nasal septum structure, prevent postoperative displacement, and promote wound healing.

[0003] Currently, nasal septum suturing mainly relies on forceps or needle holders to hold the needle in the patient's nasal cavity. Because the nasal cavity is relatively narrow and deep, the visualization conditions are poor, making the operation quite difficult. If the operation is not done properly, it is very easy to cause mucosal tearing or cutting, forming new perforations or causing suture failure.

[0004] Therefore, this application proposes a nasal septum suture device that facilitates surgical operation. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a nasal septum suture device. Compared to existing manual suturing methods using forceps or needle holders, this device uses a double-ended needle that shuttles back and forth between two forks, isolating the non-sutured areas within the nasal cavity and eliminating the need for visualization components. This allows for truly blind operation, offering high safety while being very convenient to use. It significantly reduces reliance on the doctor's experience and improves the efficiency and quality of nasal septum suturing.

[0006] Firstly, in order to achieve the above objectives, the present invention provides the following technical solution: A nasal septum suture device includes a needle holding part and a suture needle slidably connected within the needle holding part. The needle holding part includes two forks that can both enter the nasal cavity. Each of the two forks is provided with an arc-shaped groove. The centers of the two grooves coincide, allowing the suture needle to shuttle back and forth between the two grooves. The needle is a double-headed needle with the suture thread fixed in the middle section, and the axial sidewalls at both ends of the needle are provided with grooves. It also includes two drive rods, each of which has a slider that is slidably connected to the slide groove at one end, and each slider has a locking head that can be inserted into the slot; the two forks have protrusions on the surfaces of the opposite ends of the slide groove and the side closer to the drive rod, and when the drive rod contacts the protrusions, it drives the locking head away from the slot.

[0007] Compared to existing manual suturing methods using forceps or needle holders, this approach uses a double-ended needle that moves back and forth between two forks. This isolates the non-sutured areas within the nasal cavity and eliminates the need for visualization components, enabling truly blind operation. It is highly safe and convenient to operate, significantly reducing reliance on the doctor's experience and improving the efficiency and quality of nasal septum suturing.

[0008] In conjunction with the first aspect, in one possible implementation, the needle-holding part includes a cover plate and a base that are both fork-shaped and stacked sequentially, with both fork heads located on the base; Each of the fork heads has a groove including two slides, which are used to accommodate the sewing needle and the slider respectively, and the two slides are located on the same side of the base; the two slides are distributed in parallel or in a stepped manner.

[0009] Using this method, a more flattened suture device was constructed, which is more suitable for patients with horizontally flat nostrils or flat nasal bridges.

[0010] In conjunction with the first aspect, in another possible implementation, the needle-holding part includes a fork-shaped base and two cover plates, with both fork heads located on the base; Each of the fork heads has a groove including two slides, which are respectively used to accommodate the sewing needle and the slider, and the two slides are located on the opposite side of the base, which is sandwiched between two cover plates.

[0011] Using this approach, a suture device with a relatively thick and narrow shape is constructed, which is more suitable for patients with vertically flat nostrils or high nasal bridges.

[0012] In conjunction with the first aspect, in one possible implementation, the distance between the two ends of the groove is greater than or equal to the distance between the two ends of the needle and greater than the distance between the two forks.

[0013] This implementation method ensures that the suture device can complete the suture and that it will not cause damage to the patient's nasal cavity during use.

[0014] In conjunction with the first aspect, in one possible implementation, the drive rod includes a connecting rod and a sliding rod that are rotatably connected to each other, with the slider located at one end of the connecting rod; It also includes a handle and a drive unit, the drive unit being connected to a slide rod, the slide rod being slidably connected inside the handle.

[0015] In conjunction with the first aspect, in one possible implementation, the drive unit includes two knobs rotatably connected to the handle, and the two knobs are respectively engaged with two slide rods.

[0016] This implementation method uses the rotation of a knob to drive the extension and retraction of a rod, thereby achieving the pushing and pulling action of the rod. This makes operation more convenient, improves the stability of the suturing process, and ensures the quality of the suturing.

[0017] In conjunction with the first aspect, in another possible implementation, the drive unit includes two knobs rotatably connected to the handle and a crank connecting rod rotatably connected between the drive rod and the knobs at an eccentric point.

[0018] This implementation method uses the rotation of a knob to drive the extension and retraction of a rod, thereby achieving the pushing and pulling action of the rod. This makes operation more convenient and the transmission more stable, which is also more conducive to the stability of the suturing process and can ensure the quality of suturing.

[0019] In conjunction with the first aspect, in one possible implementation, the two slides are respectively connected to the handle via elastic elements.

[0020] This implementation method allows the suture device to have more flexible applications and can adapt to different usage needs.

[0021] In conjunction with the first aspect, in one possible implementation, a marker pin is rotatably connected to the handle, the axis of rotation of the marker pin being perpendicular to the plane of the slide groove; both slide rods are provided with levers, and the levers abut against the marker pin.

[0022] This implementation method allows doctors to understand the current location of the suture needle in real time without the need for visualization tools, thus understanding the current suturing situation.

[0023] In conjunction with the first aspect, in one possible implementation, the connecting rod is clamped in the gap between the base and the cover plate, and the end of the connecting rod near the slider or the protruding part of the cover plate is provided with a deformation space for elastic deformation of the end of the connecting rod.

[0024] This implementation method ensures that the suture needle can move back and forth between the patient's nasal septum while keeping the size of the needle holder from becoming too large, thus ensuring the practicality of this suture device.

[0025] In conjunction with the first aspect, in one possible implementation, the connecting rod has a deformation space at one end of the slider and on the side near the cover plate, allowing for elastic deformation of the connecting rod end.

[0026] In conjunction with the first aspect, in one possible implementation, the handle includes a main support, a bottom shell, and an upper shell. The main support is fixedly connected to the bottom shell, and the side of the upper shell away from the main support protrudes outward for mounting a knob. The bottom shell and the upper shell are detachably connected. The main support is provided with a sleeve for sliding connection of a slide rod.

[0027] In conjunction with the first aspect, in one possible implementation, the main support is provided with a rotating shaft, and the knob is located on the rotating shaft; the knob includes teeth that engage with a slide bar and a toggle part on the side away from the teeth, the toggle part being located within a fan-shaped opening at the bulge of the upper shell.

[0028] In conjunction with the first aspect, in one possible implementation, the marking pin is rotatably connected to the bracket, and the portion of the handle near the marking pin is made of a transparent material.

[0029] In conjunction with the first aspect, in one possible implementation, one of the cover plates is integrally formed with the upper shell or the bottom shell, and the base and the other cover plate are both detachably connected to the bottom shell or the upper shell.

[0030] In conjunction with the first aspect, in one possible implementation, the base is detachably connected to the main support, and the slide rod is detachably connected to the crank connecting rod.

[0031] In conjunction with the first aspect, in one possible implementation, the end of the handle away from the needle-holding part is bent or tilted away from the knob.

[0032] Compared with existing technologies, the beneficial effects of this invention are as follows: Compared with the existing manual suturing method using forceps or needle holders, the double-ended needle shuttles back and forth between the two forks, which not only isolates the non-sutured area in the nasal cavity, but also does not rely on visualization components, achieving truly blind operation. It is highly safe and very convenient to operate, greatly reducing the dependence on the doctor's experience and improving the efficiency and quality of nasal septum suturing. Attached Figure Description

[0033] Figure 1 This is a three-dimensional structural diagram of the nasal septum suture device proposed in this invention; Figure 2 This is a schematic diagram of the internal structure of the nasal septum suture device proposed in this invention; Figure 3 This is a left view of the structure of the nasal septum suture device proposed in this invention; Figure 4 This is an exploded structural diagram of the base of the nasal septum suture device proposed in this invention; Figure 5 This is a rear view of the base structure of the nasal septum suture device proposed in this invention; Figure 6 for Figure 5 A diagram illustrating another method of inserting and exiting the center seam needle; Figure 7 This is a three-dimensional structural diagram of the base of the nasal septum suture device proposed in this invention, mainly showing the distribution of the grooves; Figure 8 This is a three-dimensional structural diagram of the base in the nasal septum suture device proposed in this invention, mainly showing the assembly diagram of the slider; Figure 9This is a schematic diagram of the structure of the nasal septum suture device and the drive rod proposed in this invention, mainly showing the cooperation diagram of the slot and the head; Figure 10 This is a three-dimensional exploded view of the handle of the nasal septum suture device proposed in this invention; Figure 11 This is a three-dimensional exploded structural diagram of the main body of the nasal septum suture device proposed in this invention; Figure 12 for Figure 11 Assembly diagram.

[0034] In the diagram: 1. Needle holding part; 11. Base; 111. Fork head; 1111. Slide groove; 1112. Protrusion; 11111. Slide path; 12. Cover plate; 2. Sewing needle; 21. Card slot; 3. Drive rod; 31. Slide rod; 311. Toggle lever; 32. Connecting rod; 321. Slider; 322. Deformation space; 323. Boss; 3231. Clamp; 4. Handle; 41. Bottom shell; 411. Marking pin; 42. Top shell; 43. Main support; 5. Drive unit; 51. Knob; 52. Elastic element; 521. Compression spring; 53. Crank connecting rod. Detailed Implementation

[0035] Currently, septoplasty mainly relies on a needle holder or forceps to hold the needle, insert it into one of the patient's nostrils (nasal cavity) to pass through the nasal septum, then hold the needle in the other nostril (nasal cavity) and pull it out, then insert the needle into the other nasal septum position through the same nostril, and so on to complete the suturing of the nasal septum.

[0036] During the procedure, the exposed needle can easily puncture non-septal areas within the very narrow and deep nasal cavity. Furthermore, due to the lack of visualization, the procedure heavily relies on the surgeon's experience; otherwise, the suture placement (i.e., the needle puncture site) can become chaotic, leading to poor suture quality and impacting recovery efficiency. Therefore, current septal suturing techniques are quite challenging.

[0037] It is understood that the following embodiments are all intended to provide a suturing tool that is more convenient to operate and has higher suturing quality and efficiency for nasal septum suturing.

[0038] 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.

[0039] Example 1: Please see Figure 1-9 This provides a typical application scheme of the present invention: The nasal septum suture device includes a needle holding part 1 and a suture needle 2 slidably connected in the needle holding part 1. The needle holding part 1 includes two forks 111 that can enter the nasal cavity. Each fork 111 is provided with an arc-shaped groove 1111. The centers of the two grooves 1111 coincide, allowing the suture needle 2 to shuttle back and forth between the two grooves 1111. The sewing needle 2 is a double-headed needle with the sewing thread fixed in the middle section, and the axial sidewalls at both ends of the sewing needle 2 are provided with grooves 21; It also includes two drive rods 3, one end of each drive rod 3 is provided with a slider 321 that is slidably connected to the slide groove 1111, and each slider 321 is provided with a locking head 3231 that can be inserted into the locking slot 21; the two forks 111 have protrusions 1112 on the surface of the opposite end of the slide groove 1111 and the side near the drive rod 3, when the drive rod 3 contacts the protrusions 1112, it drives the locking head 3231 away from the locking slot 21.

[0040] As an optional implementation of the present invention, during suturing, the two forks 111 are simultaneously inserted into the two nasal cavities respectively. By pushing or pulling one of the drive rods 3, and with the locking head 3231 on the drive rod 3 in a state of engagement with the locking groove 21, the suture needle 2 is driven by the slider 321 to slide in the arc-shaped groove 1111. When the needle tip of the suture needle 2 moves out from the end of the groove 1111 in the forward direction, it will continue to contact the nasal septum with an arc trajectory. At this time, the drive rod 3 is continued to be pushed or pulled, so that the needle tip pierces the nasal septum and can pass through the nasal septum. Since the grooves 1111 on the two forks 111 are both arc-shaped and their centers coincide, the movement trajectory of the suture needle 2 in the two grooves 1111 always remains arc-shaped, so that when the needle tip that has passed through the nasal septum continues to move, it will enter the groove 1111 of the other fork 111. Continue pushing or pulling the drive rod 3 so that the end of the drive rod 3 moves to the end of the slide groove 1111. Since the surface of the fork head 111 protrudes 1112 towards the drive rod 3 at this point, the locking head 3231 at the end of the drive rod 3 disengages from the locking groove 21 at the end of the needle 2, thus separating the end of the needle 2 from the end of the drive rod 3. At this time, push or pull the drive rod 3 on the other side. Since the needles of double-ended needles on the market are generally tapered, the locking head 3231 at the end of the drive rod 3 can be directly guided into the locking groove 21, so that the drive rod 3 on the other side and the other end of the needle 2 are engaged. Then pull or push another drive rod 3 until the needle tail in the forward direction is completely detached from the nasal septum and enters the groove 1111, thus completing a single suture. At this time, the position state of the suture needle 2, which is fully contained in the initial groove 1111, changes to the position state of being fully contained in the other groove 1111; Then, by repeating the puncture process multiple times in the same manner, the suturing of the nasal septum can be completed.

[0041] Throughout the entire operation, the nasal septum suture surgery can be completed by simply manipulating two drive levers 3, making the operation more convenient and faster. Furthermore, the suturing principle of the double-headed needle shuttling back and forth between the two forks 111 ensures that the needle can only puncture the nasal septum without contacting other parts of the nasal cavity and causing damage to the nasal cavity. This allows doctors to operate "blindly" without relying on visualization components, greatly reducing the probability of surgical accidents. It is easier for doctors to learn and the suturing quality is higher.

[0042] Furthermore, such as Figure 9 As shown, the slot 21 is ring-shaped, which is more conducive to the cooperation with the card head 3231.

[0043] Furthermore, the edge of the locking head 3231 is spherical, and / or the corners of the locking groove 21 are rounded, making the engagement or disengagement process of the drive rod 3 and the sewing needle 2 smoother. Preferably, the edge of the locking head 3231 is spherical, which is more conducive to manufacturing.

[0044] Furthermore, the chord length of the grooves 21 at both ends of the needle 2 is greater than or equal to the chord length of the connecting grooves 1111 on the two forks 111. This is equivalent to the length of the line connecting the protrusions 1112 on both forks 111 being less than or equal to the length of the line connecting the two grooves 21. In this way, when one of the drive rods 3 is moved to the end of the groove 1111, the protrusion 1112 pushes up, causing the locking head 3231 at the end of the drive rod 3 to separate from the groove 21 at this end of the needle 2. The groove 21 at the other end of the needle 2 is either aligned with the protrusion 1112 on the fork 111 or has entered the groove 1111 but is not aligned with the protrusion 1112. This causes the locking head 3231 of the slider 321 of the other drive rod 3 to be aligned with the groove 21 or the part between the two grooves 21 on the needle 2 when it moves to the end of the groove 1111. If the locking head 3231 is ball-shaped and / or the corners of the slot 21 have rounded chamfers, and the protrusion 1112 acts on the top of the drive rod 3 so that the ball-shaped part of the locking head 3231 just contacts the upper edge of the slot 21, or the protrusion 1112 acts on the top of the drive rod 3 so that the lower edge of the locking head 3231 just contacts the rounded chamfer part of the slot 21, then for the way that the slots 21 at both ends of the needle 2 are aligned with the positions of the protrusions 1112 on the two forks 111, it can be ensured that the needle 2 and the drive rod 3 can be smoothly engaged or disengaged. If neither the locking head 3231 nor the locking groove 21 has a ball head or a rounded chamfer, meaning that the drive rod 3 and the needle 2 need to be separated by the complete disengagement of the locking groove 21 and the locking head 3231, then the chord length of the two locking grooves 21 of the needle 2 should be greater than the chord length of the protrusion 1112 on the two forks 111 to ensure the separation and engagement of the needle 2 and the drive rod 3, thereby ensuring that the needle 2 can shuttle back and forth between the two forks 111 during the sewing process.

[0045] In some other possible embodiments, the slot 21 is provided on the slider 321, and the head 3231 is provided at both ends of the needle 2. Although such a structural design is contrary to the mainstream double-headed needle design, the direct positional substitution between the head 3231 and the slot 21 does not affect the use. Therefore, this method is also an unimproved replacement method that is equivalent to this embodiment and should also be within the scope of this embodiment.

[0046] In some implementations, the slider 321 and the locking head 3231 can both be installed on the end of the drive rod 3, or they can be integrally formed with the end of the drive rod 3, or one of them can be integrally formed and then locked onto another component. In this embodiment, based on common design sense, the locking head 3231 is integrally formed with the boss 323 at the end of the drive rod 3, and the slider 321 rotates with the boss 323 to make the slider 321 slide more smoothly in the slide groove 1111. However, this is not a limitation of this embodiment, and those skilled in the art can still implement it in other design ways.

[0047] Compared to existing manual suturing methods using forceps or needle holders, this approach, which uses a double-ended needle to shuttle back and forth between two forks 111, isolates the non-sutured areas within the nasal cavity and does not rely on visualization components, enabling truly blind operation. This method is highly safe and convenient, significantly reducing reliance on the doctor's experience and improving the efficiency and quality of nasal septum suturing.

[0048] Example 2: Please see Figure 1-10 The present invention provides the following technical solution: a nasal septum suture device, including a needle holding part 1 and a suture needle 2 slidably connected in the needle holding part 1. The needle holding part 1 includes two forks 111 that can enter the nasal cavity. Each of the two forks 111 is provided with an arc-shaped groove 1111. The centers of the two grooves 1111 coincide so that the suture needle 2 can shuttle back and forth between the two grooves 1111. The sewing needle 2 is a double-headed needle with the sewing thread fixed in the middle section, and the axial sidewalls at both ends of the sewing needle 2 are provided with grooves 21; It also includes two drive rods 3, one end of each drive rod 3 is provided with a slider 321 that is slidably connected to the slide groove 1111, and each slider 321 is provided with a locking head 3231 that can be inserted into the locking slot 21; the two forks 111 have protrusions 1112 on the surface of the opposite end of the slide groove 1111 and the side near the drive rod 3, when the drive rod 3 contacts the protrusions 1112, it drives the locking head 3231 away from the locking slot 21; The needle holding part 1 includes a cover plate 12 and a base 11, both of which are fork-shaped and stacked in sequence, with the two fork heads 111 located on the base 11; Each fork 111 has a groove 1111 including two slides 11111, which are used to accommodate the sewing needle 2 and the slider 321 respectively, and the two slides 11111 are located on the same side of the base 11; the two slides 11111 are distributed in parallel or in a stepped manner.

[0049] As an optional implementation of the present invention, compared with Embodiment 1, this embodiment further defines the specific structure of each needle holding part 1, so that the needle holding part 1 can be manufactured better.

[0050] We know that in order to achieve smooth driving of components in a track, it is generally required that the direction of the applied driving force be synchronized with the track trajectory. This can prevent the components located in the track from colliding and wearing with the track. In the process of nasal septum suturing, in order to ensure the efficiency and quality of suturing, it is necessary to ensure that the force applied by the drive rod 3 to the suture needle 2 remains stable at all times.

[0051] With a cover plate 12 and a base 11, and each slide 1111 containing two parallel or stepped slides 11111, which are distributed on one surface of the base 11, the slide 1111 presents the shape of two concentric arcs, and the movement trajectory of the slider 321 and the suture needle 2 presents a circular posture. This structural design inevitably makes the thickness of each fork 111 not very large, but the lateral width occupied is increased, and the entire needle holding part 1 presents a flat shape, which is more suitable for patients with flat nose bridges or horizontally flat nostrils.

[0052] Using this method, a more flattened suture device was constructed, which is more suitable for patients with horizontally flat nostrils or flat nasal bridges.

[0053] Of course, in some embodiments, the two slides 11111 may also be distributed on the base 11 and the cover plate 12 respectively. Such embodiments with the same function and effect should also be within the scope of this embodiment.

[0054] like Figure 4 As shown, in some other embodiments, the needle holding part 1 includes a fork-shaped base 11 and two cover plates 12, with the two fork heads 111 located on the base 11. Each fork 111 has a groove 1111 including two slides 11111, which are used to accommodate the sewing needle 2 and the slider 321 respectively. The two slides 11111 are located on the opposite side of the base 11, which is sandwiched between two cover plates 12.

[0055] As an optional implementation of the present invention, this method uses two cover plates 12 and a base 11, with two slides 11111 located on different surfaces of the base 11. The two slides 11111 are connected, allowing the clasp 3231 to extend into the other slide 11111 to enter the clasp 21 of the suture needle 2. Compared to the design where the two slides 11111 are located on the same surface of the base 11, this structural design inevitably increases the thickness of a single fork 111, but reduces the width requirement, making the entire needle-holding part 1 more inclined to a thick and narrow shape, thus more suitable for patients with high nasal bridges and vertically flat nostrils.

[0056] Using this approach, a suture device with a relatively thick and narrow shape is constructed, which is more suitable for patients with vertically flat nostrils or high nasal bridges.

[0057] like Figure 5 As shown, in some embodiments, the distance between the two ends of the groove 1111 is greater than the distance between the two ends of the needle 2 and the distance between the two forks 111.

[0058] As an optional implementation of the present invention, the ratio of the suture needle 2 to the needle holding part 1 is further defined. As a suture needle 2 capable of performing nasal septum suturing surgery, its span (chord length) is obviously relatively small. For this suture device to be used smoothly in the nasal cavity, it must ensure that both forks 111 can simultaneously and smoothly enter both nostrils. This requires that when the entire needle holding part 1 enters and exits the nasal cavity, the suture needle 2 itself must be completely hidden within one of the forks 111. If the suture needle 2 is exposed, it will cause the suture needle 2 to puncture the inner surface of the nasal cavity. Therefore, the chord length at both ends of the suture needle 2 must not exceed the chord length of each groove 1111 (i.e., the distance between the two ends of the groove 1111). In addition, this suture device is based on the principle that the needle 2 shuttles back and forth between the two forks 111 to achieve suturing. Therefore, it is necessary to ensure that during shuttle movement, both ends of the needle 2 are separated from one of the drive rods 3 and engaged by the other drive rod 3 to properly complete the transfer of the needle 2 between the two drive rods 3. Thus, the chord length of the needle 2 needs to be greater than the distance between the two forks 111. Of course, in this embodiment, the distance between the forks 111 should be considered as the span of the central gap shape of the needle-holding part 1, which corresponds to the location of the nasal septum.

[0059] It should be understood that due to the diversity of nasal cavity shape and size among patients, it is difficult to set manufacturing standards for the suture needle 2. Therefore, in this embodiment, the specific dimensional parameters of the suture needle 2 and each structure in the suture device are not limited. In the basic model of this suture device, those skilled in the art can use the minimum nasal septum thickness as the minimum distance between the two forks 111, while the size of the forks 111 themselves can be based on the minimum theoretical specifications at the time of manufacturing. This allows the basic model to be adapted to different age groups, from infants to adults. The specific dimensional parameters are not specifically limited in this embodiment.

[0060] This implementation method ensures that the suture device can complete the suture and that it will not cause damage to the patient's nasal cavity during use.

[0061] like Figure 5 As shown, in some embodiments, the drive rod 3 includes a connecting rod 32 and a sliding rod 31 that are rotatably connected to each other, and the slider 321 is disposed at one end of the connecting rod 32; It also includes a handle 4 and a drive unit 5, the drive unit 5 being connected to a slide bar 31, and the slide bar 31 being slidably connected inside the handle 4.

[0062] As an optional implementation of the present invention, the handle 4 can be held directly to push and pull the drive rod 3 to complete the sewing operation. It is more convenient to use because it only requires pushing and pulling the two drive rods 3 straight up and down.

[0063] Furthermore, such as Figure 3-4 As shown, in some embodiments, the drive unit 5 includes two knobs 51 that are rotatably connected to the handle 4, and the two knobs 51 are respectively engaged with two slide rods 31.

[0064] As an optional implementation of the present invention, when the knob 51 is turned (or rotated), the slide bar 31 is driven to slide in the handle 4, thereby realizing the pulling and pushing action of the drive rod 3. Compared with direct pushing, the turning and rotating method is a smaller-amplitude operation and is easier to achieve stable control. When the doctor operates, he can hold the handle 4 with both hands and operate the two knobs 51 with his two thumbs, or he can hold the handle 4 with one hand and operate the two knobs 51 with the other hand, which is very convenient to use.

[0065] It should be understood that since the slide bar 31 slides in the handle 4 and the knob 51 is engaged with the slide bar 31, the slide bar 31 should have the structural features of a rack.

[0066] By using this method, the rotation of knob 51 drives the extension and retraction of rod 3, thereby realizing the pushing and pulling action of rod 3. This makes operation more convenient and is more conducive to the stability of the suturing process, ensuring the quality of suturing.

[0067] Furthermore, such as Figure 11-12 As shown, in some other embodiments, the drive unit 5 includes two knobs 51 rotatably connected to the handle 4 and a crank connecting rod 53 rotatably connected between the drive rod 3 and the knobs 51 at an eccentric point.

[0068] As an optional implementation of the present invention, a crank-connecting rod mechanism is formed by the knob 51, the crank connecting rod 53 and the drive rod 3. Compared with the meshing connection, the power transmission is more stable. Moreover, this transmission method has its own maximum stroke limit. It does not rely on the fan-shaped opening on the handle 4 to limit the stroke of the drive rod 3, nor does it need to use the elastic element 52 to achieve reset.

[0069] By using this method, the rotation of knob 51 drives the extension and retraction of rod 3, thereby realizing the pushing and pulling action of rod 3. This makes operation more convenient and the transmission more stable, which is also more conducive to the stability of the suturing process and can ensure the suturing quality.

[0070] like Figure 3-4 As shown, in some embodiments, the two slide bars 31 are respectively connected to the handle 4 via elastic elements 52.

[0071] As an optional implementation of the present invention, the elastic element 52 can be a spring, and one end of the slide bar 31 is connected to the handle 4 through the spring, so that the slide bar 31 can automatically return to the initial state.

[0072] In some cases, the spring is a tension spring, initially in a stretched state, and the needle 2 is configured to extend from the top of the needle holder 1 (i.e., the protrusion 1112 is located at the end of the fork 111 away from the handle 4). When the doctor pushes one of the drive rods 3, the tension spring is stretched and has a reaction force. When the needle 2 separates from the drive rod 3, the force on the drive rod 3 is released, and the drive rod 3 will be immediately pulled back by the reaction force of the tension spring, so that the slider 321 is located at the innermost side of the corresponding groove 1111. The other drive rod 3, because it needs to receive the needle 2, must also be located at the farthest end of the needle holder 1 to engage the needle 2. When the other drive rod 3 is released, it is also immediately pulled back to the innermost side under the action of the tension spring, so that the entire needle 2 is immediately accommodated in the groove 1111. This ensures that the tip of the needle 2 is not exposed during the process of inserting the suture device into the nasal cavity before suturing and during the process of removing the suture device from the nasal cavity after suturing, ensuring that the patient's nasal cavity is not scratched.

[0073] Of course, from the perspective of nasal cavity structure, surgical practice, and theoretical design of structural design, the suture needle 2 is configured to start from the very top of the needle holding part 1 (i.e., as shown in the image). Figure 5The method of inserting and exiting the needle 2 through the groove 1111 (the end furthest from the handle 4) maximizes space utilization. However, configuring the needle 2 to insert and exit through the groove 1111 (the end closest to the handle 4) is not entirely impossible. This depends on the overall length of the needle holder 1 and the overall diameter of the needle 2 and the groove 1111. Furthermore, if the needle 2 is inserted and exited through the groove 1111 (the end closest to the handle 4) (as... Figure 6 Therefore, the spring should be a compression spring 521. Thus, this embodiment does not limit which end of the needle holder 1 the needle 2 passes through, nor does it limit whether the spring used is a tension spring or a compression spring 521.

[0074] Preferably, in other cases, the spring is a compression spring 521. The initial state of the compression spring 521 is compressed, and the needle 2 is configured to extend from the top of the needle holder 1 (i.e., the protrusion 1112 is located at the end of the fork 111 away from the handle 4). When the doctor pulls one of the drive rods 3 and moves the needle 2, the compression spring 521 is further compressed and has a reaction force. When the force on the drive rod 3 is released, the drive rod 3 will immediately be ejected from the slide groove 1111 due to the reaction force of the compression spring 521, so that the slider 321 is located at the outermost side of the corresponding slide groove 1111; and at this time, the other drive rod 3 is already at the farthest end of the needle holder 1, ready to receive the needle 2, due to the initial pressing force of the compression spring 521. When the other drive rod 3 is pulled, it moves the needle 2 back into the slide groove 1111. The whole operation process is more labor-saving, so the compression spring 521 can also be used.

[0075] In addition, the elastic element 52 can also be a spring sheet, and this embodiment does not make any specific limitation.

[0076] This implementation method allows the suture device to have more flexible applications and can adapt to different usage needs.

[0077] like Figure 10 As shown, in some embodiments, a marker needle 411 is rotatably connected to the handle 4, and the rotation axis of the marker needle 411 is perpendicular to the plane of the slide groove 1111; both slide rods 31 are provided with levers 311, and the levers 311 abut against the marker needle 411.

[0078] Furthermore, the marker needle 411 is specifically rod-shaped, and the levers 311 all abut against the marker needle 411 from the side of the marker needle 411 near the needle holding part 1. As an optional embodiment of the invention, when the slide bar 31 moves away from the marker needle 411, this means the suture needle 2 is pushed between the two forks 111, and the marker needle 411 is not under force and therefore will not be driven to rotate; if only one slide bar 31 moves towards the marker needle 411, this means the suture needle 2 has completely returned to the groove 1111 corresponding to that slide bar 31 or the slide bar 31 has returned to its empty state. In practical use, especially when the compression spring 521 is preferred, simply driving one of the knobs 51 will cause the marker needle 411 to rotate in that direction, allowing the doctor to know the current position of the suture needle 2.

[0079] This implementation method allows doctors to understand the current position of the suture needle 2 in real time without the need for visualization tools, thus understanding the current suturing situation.

[0080] like Figure 4 and Figure 9 As shown, in some embodiments, the connecting rod 32 is clamped in the gap between the base 11 and the cover plate 12, and the end of the connecting rod 32 near the slider 321 or the part of the cover plate 12 near the protrusion 1112 is provided with a deformation space 322 for elastic deformation of the end of the connecting rod 32.

[0081] As an optional implementation of the present invention, since the overall volume of this suture device is relatively small, it is necessary to use the drive rod 3 in conjunction with the protrusion 1112 to achieve the engagement and disengagement of the drive rod 3 and the suture needle 2. Therefore, compared with directly making the end of the drive rod 3 tilt up, it is more beneficial to save the space occupied by the entire needle holding part 1 by allowing the end of the connecting rod 32 in the drive rod 3 to have elastic deformation space.

[0082] By adopting this implementation method, it is ensured that the suture needle 2 can shuttle back and forth between the patient's nasal septum, while the size of the needle holding part 1 is not too large, thus ensuring the practicality of this suture device.

[0083] Furthermore, such as Figure 9 and Figure 11 As shown, in some embodiments, the connecting rod 32 has a deformation space 322 at one end of the slider 321 and on the side near the cover plate 12, which allows the end of the connecting rod 32 to elastically deform.

[0084] As an optional implementation of the present invention, the deformation space 322 can be either a groove directly formed on the cover plate 12 ( Figure 11 Alternatively, the thickness of the end of the connecting rod 32 can be less than the thickness of the main body of the connecting rod 32. Figure 9 Alternatively, the end of the connecting rod 32 can be forked. Therefore, any method that allows the end of the connecting rod 32 to have a deformable space 322 is within the scope of this embodiment.

[0085] like Figure 10 As shown, in some embodiments, the handle 4 includes a main support 43, a bottom shell 41, and an upper shell 42. The main support 43 is fixedly connected to the bottom shell 41. The side of the upper shell 42 away from the main support 43 protrudes outward for mounting the knob 51. The bottom shell 41 and the upper shell 42 are detachably connected. The main support 43 is provided with a sleeve for sliding connection of the slide rod 31. The main support 43 is provided with a rotating shaft, and the knob 51 is located on the rotating shaft. The knob 51 includes teeth that mesh with the slide rod 31 and a toggle part on the side away from the teeth. The toggle part is located in the fan-shaped opening at the protrusion of the upper shell 42.

[0086] As an optional implementation of the present invention, the structure of the suture device is further defined. Dividing the handle 4 into a main support 43, a bottom shell 41, and an upper shell 42 not only makes it easier to manufacture and assemble, but also allows a part of the knob 51 to be exposed on the surface of the handle 4 through the fan-shaped opening, making it convenient for doctors to turn during suturing, while also limiting the position of the knob 51.

[0087] like Figure 10 As shown, in some embodiments, the marker needle 411 is rotatably connected to the bracket, and the part of the handle 4 near the marker needle 411 is made of transparent material. The transparent material can be common acrylic material, making it easier for doctors to understand the current suturing situation; one of the cover plates 12 is integrally formed with the upper shell 42 or the bottom shell 41, and the base 11 and the other cover plate 12 are detachably connected to the bottom shell 41 or the upper shell 42, which makes it easier to assemble the entire suture device; The base 11 is detachably connected to the main support 43, and the slide rod 31 is detachably connected to the crank connecting rod 53. The detachable connection can be, for example, a threaded connection, a plug-in connection, a sleeve connection, a snap-fit ​​connection, etc. This embodiment does not limit this. Preferably, the base 11 is threadedly connected to the main support 43, and the slide rod 31 is plugged into the crank connecting rod 53. This allows the drive rod 3 and the base 11 to be assembled as a whole before being directly installed on the main support 43 and connected to the crank connecting rod 53, which is convenient for assembly.

[0088] like Figure 3 As shown, in some embodiments, the end of the handle 4 away from the needle-holding part 1 is bent or tilted away from the knob 51.

[0089] As an optional implementation of the present invention, the entire suture device is made easier to hold, thereby making it easier for doctors to use.

[0090] Working principle and usage process of this invention: During assembly, as follows Figure 11-12As shown, first place the sliders 321 on the two drive rods 3 into the slide grooves 1111 on the base 11, then cover the cover plate 12 to form the front end as a whole, and then install the whole on the main bracket 43. At the same time, the slider 31 and the crank connecting rod 53 are connected. At this time, the assembly of the main body is completed. Finally, install the bottom shell 11 and the upper shell 42 on the main bracket 43.

[0091] In use, after disinfecting the suture needle 2 and the needle holding part 1, turn one of the knobs 51 so that one of the drive rods 3 drives the entire suture needle 2 to retract into the slide groove 1111. Then, place the two forks 111 at the innermost part of the patient's two nasal cavities at the same time. Then release the knob 51 so that the drive rod 3 resets under the reaction force of the compression spring 521, driving the suture needle 2 to puncture the nasal septum. The slider 321 of the drive rod 3 moves to the end of the slide groove 1111. At this time, the other tip of the suture needle 2 enters another slide groove 1111. At the same time, due to the pushing action of the protrusion 1112 on the fork 111 on the end of the drive rod 3, the locking head 3231 on the drive rod 3 separates from the slide groove 1111 on the suture needle 2. Then, turn another knob 51 to activate another drive lever 3, causing the suture needle 2 to retract into the groove 1111 of the fork head 111 on the other side, completing a single puncture. Next, move the entire suture device slightly outward from the nasal cavity to change the puncture position, and then release the knob 51 that was just turned, allowing the suture needle 2 to penetrate the nasal septum again. By alternately turning the two knobs 51 in this way, and moving the suture device after each turn, the entire nasal septum suture can be completed.

[0092] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A nasal septum suture device, comprising a needle holder and a suture needle slidably connected within the needle holder, wherein, The needle holding part includes two forks that can both enter the nasal cavity. Each of the two forks is provided with an arc-shaped groove. The centers of the two grooves coincide, allowing the suture needle to shuttle back and forth between the two grooves. The needle is a double-ended needle, and grooves are provided on the axial sidewalls at both ends of the needle; It also includes two drive rods, each of which has a slider that is slidably connected to the slide groove at one end, and each slider has a locking head that can be inserted into the slot; the two forks have protrusions on the surfaces of the opposite ends of the slide groove and the side closer to the drive rod, and when the drive rod contacts the protrusions, it drives the locking head away from the slot.

2. The nasal septum suture device according to claim 1, wherein, The needle holding part includes a cover plate and a base that are both fork-shaped and stacked in sequence, with both fork heads located on the base; Each of the fork heads has a groove including two slides, which are used to accommodate the sewing needle and the slider respectively, and the two slides are located on the same side of the base; the two slides are distributed in parallel or in a stepped manner.

3. The nasal septum suture device according to claim 1, wherein, The needle holding part includes a fork-shaped base and two cover plates, with the two fork heads located on the base; Each of the fork heads has a groove including two slides, which are respectively used to accommodate the sewing needle and the slider, and the two slides are located on the opposite side of the base, which is sandwiched between two cover plates.

4. The nasal septum suture device according to claim 2 or 3, wherein, The distance between the two ends of the groove is greater than or equal to the distance between the two ends of the needle, which is greater than the distance between the two forks.

5. The nasal septum suture device according to claim 1, wherein, The drive rod includes a connecting rod and a sliding rod that are rotatably connected to each other, and the sliding block is located at one end of the connecting rod; It also includes a handle and a drive unit, the drive unit being connected to a slide rod, the slide rod being slidably connected inside the handle.

6. The nasal septum suture device according to claim 5, wherein, The drive unit includes two knobs that are rotatably connected to the handle, and the two knobs are respectively engaged or connected to two slide rods.

7. The nasal septum suture device according to claim 5, wherein, The two slide bars are respectively connected to the handle via elastic elements.

8. The nasal septum suture device according to claim 5, wherein, The handle is also rotatably connected to a marker needle, the axis of rotation of which is perpendicular to the plane of the slide groove; both slide rods are provided with levers, which abut against the marker needle.

9. The nasal septum suture device according to claim 5, wherein, The connecting rod is clamped in the gap between the base and the cover plate, and the end of the connecting rod near the slider or the part of the cover plate near the protrusion is provided with a deformation space for elastic deformation of the end of the connecting rod.

10. The nasal septum suture device according to claim 6, wherein, The handle includes a main bracket, a bottom shell, and an upper shell. The main bracket is fixedly connected to the bottom shell, and the side of the upper shell away from the main bracket protrudes outward for the installation of the knob. The bottom shell and the upper shell are detachably connected.

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