A push-pin type nasal septum anastomosis device

Abstract

The present invention discloses a push-nail type nasal septum anastomosis device, comprising: a clamping and pushing nail mechanism capable of placing nails to puncture and suture sutured tissue; and a control mechanism for controlling the clamping and pushing nail mechanism to push nails, connected to the proximal end of the clamping and pushing nail mechanism. The push-nail type nasal septum anastomosis device is controlled by an operator with one hand to operate the control mechanism to control the clamping and pushing nail mechanism to push nails to suture the nasal septum suture tissue. The above structure can make the operation of the nasal septum suturing technology more convenient and accurate, solve the problem of inconvenience in operation caused by a narrow nasal cavity, and further solve the problem of long surgical time of the nasal septum suturing technology, making it easier for the operator to use. At the same time, the control mechanism has a variable ratchet gear mechanism, which can switch between three different modes: operating mode, braking mode or return mode. The switching of the above modes enables the push-nail type nasal septum anastomosis device to be suitable for use in different places, and has strong adaptability.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical devices, and in particular relates to a push-pin type nasal septum anastomosis device. Background Art

[0002] A deviated nasal septum is one of the most common otolaryngology conditions. It is a common and frequently occurring rhinitis disease. The reported prevalence is 51%, with 12% experiencing symptoms requiring treatment, meaning approximately 6 in every 100 people require treatment. A deviated nasal septum is associated with factors such as congenital development and trauma. Severe deviation can lead to poor nasal ventilation and sinus drainage, resulting in symptoms such as nasal congestion, epistaxis, and reflex headaches. Prolonged symptoms can severely impact a patient's quality of life and even psychologically.

[0003] Septoplasty is a widely used procedure in clinical practice for the treatment of nasal septal deviation. To stabilize the nasal septum and effectively stop bleeding after surgery, nasal packing is currently a common method used both domestically and internationally. During the packing period, patients experience headaches, nasal congestion, dry mouth, and dysphagia. These conditions are also prone to complications such as sinus infections and tympanic effusions. In severe cases, these complications can even trigger a nasocardiac reflex, leading to arrhythmias and myocardial infarction. Removing the packing is extremely painful for many patients, leading to fear and resistance to treatment. It can also cause further bleeding, and in severe cases, syncope and shock.

[0004] Preliminary research indicates that septoplasty not only effectively stabilizes the septal cartilage and repairs torn mucosa, but also effectively avoids the pain associated with packing removal. Regarding postoperative recovery, patients undergoing septoplasty experience a relatively clean nasal cavity, require less postoperative nasal secretion management, and recover relatively quickly. The incision is sutured and knotted at the nasal vestibule skin, which facilitates healing, provides good alignment, and results in a more aesthetically pleasing appearance. Septoplasty significantly improves postoperative discomfort, preserves nasal mucosal function to a greater extent, reduces postoperative complications, and results in a rapid recovery and satisfactory correction of septal deviation. In summary, septoplasty is a novel technique requiring skilled intranasal manipulation. Compared with nasal packing, septoplasty significantly reduces patient pain and financial burden, accelerates recovery, reduces postoperative complication rates, and shortens hospital stays. Therefore, septoplasty warrants widespread clinical application. However, due to the narrow nasal cavity and the lack of specialized instruments suitable for nasal suturing, this method suffers from the disadvantages of inconvenience and prolonged surgery compared to traditional packing methods. The increased learning curve for beginners makes many young doctors reluctant to learn and attempt it, hindering the widespread application of septal suturing. Therefore, it is necessary to develop a septal stapler suitable for septal suturing to address the drawbacks of inconvenience and prolonged surgery. Summary of the Invention

[0005] The present invention aims to solve the technical problems of inefficient operation and long operation time in the prior art of nasal septum suturing, and aims to provide a push-stitch type nasal septum stapler, which comprises:

[0006] A clamping and pushing mechanism for placing nails to puncture and suture tissue;

[0007] A control mechanism for controlling the clamping and pushing nail mechanism to push nails is connected to the proximal end of the clamping and pushing nail mechanism, and the control mechanism has:

[0008] A base, wherein the upper portion thereof is provided with a rack groove, the middle portion thereof is provided with a ratchet gear cavity, and a ratchet gear shaft and a pawl shaft are vertically fixed in the ratchet gear cavity;

[0009] a rack assembly slidably disposed in the rack groove of the base, wherein the distal end of the rack assembly is pushably connected to the clamping and pushing mechanism;

[0010] A variable ratchet gear mechanism is located in the ratchet gear cavity of the base, and the variable ratchet gear mechanism has: a ratchet gear and a ratchet gear driving member; the ratchet gear is passed through the ratchet gear shaft, and the ratchet gear is meshed with the rack assembly to convert the circular motion of the ratchet gear into the linear motion of the rack assembly; the ratchet gear driving member is drivingly connected to the ratchet gear.

[0011] Preferably, the variable ratchet gear mechanism comprises:

[0012] The ratchet gear comprises an integrally formed ratchet wheel and a coaxially arranged gear, which are coaxially passed through the ratchet gear shaft, and the gear is meshed with the rack assembly;

[0013] a movable handle, wherein the distal end of the movable handle has a distal shaft hole and the middle portion has a middle shaft hole, and the distal shaft hole of the movable handle is penetrated by the ratchet gear shaft;

[0014] The ratchet gear driving member has a driving pawl and a non-return pawl, the thick end of the driving pawl is coaxially connected to the middle shaft hole of the movable handle, and the thick end of the non-return pawl is connected to the pawl shaft, and in the operating mode, the tips of the driving pawl and the non-return pawl can be inserted and connected with the tooth grooves of the ratchet;

[0015] A mode shifting member comprises a shifting ring and a sliding rod, the center hole of the shifting ring being sleeved on the ratchet gear shaft and being located between the ratchet gear and the movable handle, the three corners of the shifting ring respectively having a shifting end, a first end and a second end; the sliding rod is arranged on the shifting end for rotating the shifting end to the running mode, the braking mode or the return mode; in the braking mode, the second end and the shifting end of the shifting ring can be respectively connected to the driving pawl and the non-return pawl for stopping; in the return mode, the first end can disengage the tip of the driving pawl from the tooth groove of the ratchet wheel so as to abut and connect with the driving pawl, making the driving pawl invalid, and the second end can disengage the tip of the non-return pawl from the tooth groove of the ratchet wheel so as to abut and connect with the non-return pawl, making the non-return pawl invalid, the ratchet wheel being out of control, achieving free rotation, and the rack being retractable.

[0016] Preferably, the ratchet gear drive also has

[0017] a driving pawl spring, one end of which is connected to the inner wall of the ratchet gear cavity and the other end of which is connected to the driving pawl;

[0018] A pawl spring has one end connected to the inner wall of the ratchet gear cavity and the other end connected to the non-return pawl.

[0019] The proximal end of the base of the control mechanism has a fixed handle.

[0020] Preferably, the control mechanism further comprises: an upper cover, wherein the upper cover comprises:

[0021] a cover plate, which is arranged on the base to seal the ratchet gear cavity, and the cover plate has an arcuate groove and a running position, a braking position and a return position distributed on the arcuate groove for accommodating the slide rod;

[0022] A handle cover is integrally extended from one end of the cover plate, and the handle cover is arranged on the fixed handle of the base.

[0023] Preferably, the rack assembly has:

[0024] a rack meshingly connected with the ratchet gear, with guide rails on both side walls of the rack, a guide groove on the inner wall of the rack groove of the base, and the guide rails of the rack slidingly arranged in the guide groove of the rack groove;

[0025] a push rod connected to the distal end of the rack;

[0026] A wedge-shaped presser foot is connected to the distal end of the push rod.

[0027] Preferably, the clamping and nail-pushing mechanism has:

[0028] a nail pushing beam, one end of which is integrally connected to the upper distal end of the base, the nail pushing beam having a box groove and a push rod groove communicating with the box groove;

[0029] a clamping beam, parallel to the nail-pushing beam, with one end movably disposed at the lower distal end of the base;

[0030] A double-row nail storage box is installed in the box groove of the base, and the wedge-shaped presser foot can push the nails in the double-row nail storage box to penetrate the suture tissue to the other end of the clamping beam.

[0031] Preferably, the double-row nail storage box has:

[0032] A box body, having an axial groove in the middle, the axial groove can accommodate the middle part of the wedge-shaped presser foot, and a row of double-row nail storage grooves connected to each other on both sides;

[0033] Two rows of double-headed sliding blocks are respectively located on the upper parts of the double-row nail storage grooves, and the wedge-shaped presser feet can be pressed on the double-headed sliding blocks.

[0034] Preferably, the outer wall of the box body has a plurality of buckles, the side wall of the nail-pushing beam has a plurality of bayonet holes, and the buckles of the box body are engaged with the bayonet holes of the nail-pushing beam.

[0035] Preferably, the lower portion of the distal end of the base has a slide groove, and a fastening nut is provided in the slide groove;

[0036] One end of the clamping beam is connected to a fastening screw that can fix the clamping beam in the chute, and the fastening screw is connected to the fastening nut;

[0037] The other end of the clamping beam is corresponding to one side of the box slot and is provided with a slot hole for the nail to pass through.

[0038] Preferably, the two rows of double-headed sliders are further provided with nail clamps for fixing the nails in the nail storage box.

[0039] The positive progress effect of the present invention is:

[0040] 1) With the push-nail type nasal septum anastomosis device of the present invention, the operator holds the movable handle of the base to drive the ratchet gear to drive the rack to move linearly along the rack groove. The rack drives the push rod to push the wedge-shaped presser foot to slide toward the distal end. The wedge-shaped presser foot pushes the double-headed slider to move in the double-row nail storage box. The double-headed slider pushes the nails to the suture tissue close to the nasal septum and cooperates with the clamping beam to suture the suture tissue. At the same time, there are slots for the nails to stay on the clamping beam, which facilitates the completion of the puncture action and makes the puncture position of the nails more accurate. The above structure can make the operation of the nasal septum suturing technology more convenient and accurate, reduce the difficulty of the nasal septum suturing surgery, solve the problem of inconvenience in operation caused by the narrow nasal cavity, and further solve the problem of long operation time of the nasal septum suturing technology, making it easier for the operator to use.

[0041] 2) The base of the push-stitch nasal septum stapler of the present invention is an integrated design, which is beneficial to improving the overall structural strength and installation accuracy of the push-stitch nasal septum stapler equipment, reducing the number of parts and assembly costs and lowering the assembly difficulty.

[0042] 3) The variable ratchet gear mechanism of the push-stapling nasal septum stapler of the present invention can be switched into three different modes: operating mode, braking mode or return mode. The above modes make the push-stapling nasal septum stapler suitable for use in different stages of the suturing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1A Schematic diagram of the overall structure of the push-stitch type nasal septum anastomosis device of the present invention;

[0044] Figure 1B This is an exploded view of the structure of the push-stitch type nasal septum anastomosis device of the present invention;

[0045] Figure 2A The structure of the upper cover 22 of the control mechanism 20

[0046] Figure 2B is a perspective view of the internal structure of the control mechanism 20;

[0047] Figure 2C Schematic diagram of the internal structure of the variable ratchet mechanism 23 of the control mechanism 20;

[0048] Figure 2D Schematic diagram of the structure of the ratchet gear 232;

[0049] Figure 2E Schematic diagram of the internal structure of the ratchet gear cavity 213;

[0050] Figure 2F Schematic diagram of the internal structure of the variable ratchet mechanism 23 in the operating mode;

[0051] Figure 2G Schematic diagram of the internal structure of the variable ratchet mechanism 23 in the braking mode;

[0052] Figure 2H Schematic diagram of the internal structure of the variable ratchet mechanism 23 in the return mode;

[0053] Figure 2I 2 is a schematic structural diagram of the rack assembly 24;

[0054] Figure 3A It is a structural schematic diagram of the clamping and pushing nail mechanism 10 of the pushing nail type nasal septum anastomosis device;

[0055] Figure 3B It is a side view of the push pin beam 11;

[0056] Figure 3C Schematic diagram of the structure of the box body 121 of the double-row nail storage box 12;

[0057] Figure 3D is a side view of the double-headed slider 122;

[0058] Figure 3E Schematic diagram of the cooperation between the fastening screw 133 and the fastening nut 2141 on the clamping beam 13. DETAILED DESCRIPTION

[0059] The following describes the embodiments of the present invention through specific examples. Those skilled in the art will readily understand the other advantages and benefits of the present invention from the disclosure herein. The present invention may also be implemented or applied through various other specific embodiments, and the details in this specification may be modified or altered based on different viewpoints and applications without departing from the spirit of the present invention.

[0060] It should be noted that the terms "distal end" and "proximal end" used in the present invention are directional terms, which are commonly used terms in the field of medical devices, where "distal end" refers to the end away from the operator during surgery, and "proximal end" refers to the end close to the operator during surgery.

[0061] like Figure 1A As shown, the staple-pushing nasal septum stapler of the present invention comprises a clamping and staple-pushing mechanism 10 for placing staples 90 to puncture and suture tissue, and a control mechanism 20 for controlling the clamping and staple-pushing mechanism 10 to push staples, which is connected to the proximal end of the clamping and staple-pushing mechanism 10.

[0062] like Figure 1B As shown, the control mechanism 20 comprises a base 21, with an integral fixed handle 211 at the proximal end of the base 21. An elongated rack groove 212 is provided in the upper portion of the base 21, and a ratchet gear cavity 213 is provided in the middle portion. The ratchet gear cavity 213 is a hollow, square-shaped cavity or other suitable structure. A ratchet gear shaft 2131 and a pawl shaft 2132 are vertically fixed within the hollow portion of the ratchet gear cavity 213. The ratchet gear shaft 2131 is located in the center of the ratchet gear cavity 213, while the pawl shaft 2132 is located around the periphery of the ratchet gear cavity 213. The ratchet gear shaft 2131 is formed by two small cylindrical shafts of different radii that are axially connected and integrated.

[0063] In this example, the control mechanism 20 further includes an upper cover 22, which includes a cover plate 221 and a handle cover 222 integrally connected to the proximal end of the cover plate 221. Figure 2A As shown, the shape of the upper cover 22 is similar to that of the base 21. Four cover plate shafts 2133 are respectively provided at the four corners of the ratchet gear cavity 213 of the base 21, and there are six cover plate shaft holes on the upper cover 221: the four first cover plate shaft holes 223 are located at the four corners of the ratchet gear cavity 213, and are fixedly connected to the cover plate shafts 2133 at the four corners of the ratchet gear cavity 213 of the base 21. The upper cover 221 also has a second cover plate shaft hole 224 located in the middle of the ratchet gear cavity 213, and is fixedly connected to the ratchet gear shaft 2131 in the hollow position of the ratchet gear cavity 213 of the base 21. The cover 22 also has a third cover plate shaft hole 225 located at the proximal end of the handle cover 222, and the handle cover 222 is fixedly connected to the proximal end of the fixed handle 211. The upper cover 22 is fixed to the base 21 through six cover plate shaft holes and the base 21 to fix the upper cover 22, and the internal structure of the ratchet gear chamber 213 is fixed through the corresponding connection between the four first cover plate shaft holes 223 and the four cover plate small shafts 2133 and the corresponding connection between the second cover plate shaft hole 224 and the ratchet gear shaft 2131.

[0064] In this example, the cover plate 221 also has an arc-shaped groove 226, which is located in the middle position of the far end of the cover plate 221. Three running positions 2261, a braking position 2262 and a return position 2263 are evenly distributed on the arc-shaped groove 226 to accommodate the slide rod 2342. The running position 2261 is located in the middle position of the arc-shaped groove 226, and the braking position 2262 and the return position 2263 are located at both ends of the arc-shaped groove 226.

[0065] In this example, the control mechanism further includes a variable ratchet gear mechanism 23, which is located in the ratchet gear cavity 213 of the base 21. Figure 2B As shown, the variable ratchet mechanism 23 includes a movable handle 231. The proximal end of the movable handle 231 serves as a finger control end 2311. An L-shaped hook 2312 is connected to the middle portion of the movable handle 231, forming an inverted U-shaped groove 2313 to prevent the operator's fingers from slipping out when gripping the handle. The distal end of the movable handle 231 has a distal shaft hole 2314, and the middle portion has a middle shaft hole 2315. The distal shaft hole 2314 of the movable handle 231 is located on the ratchet shaft 2131, near the ratchet wheel 2321 end of the ratchet gear 232.

[0066] like Figure 2C As shown, the variable ratchet mechanism 23 further comprises: a ratchet gear 232 and a ratchet gear driving member 233. The ratchet gear 232 is provided on the ratchet gear shaft 2131 and is meshed with the rack assembly 24. Figure 2D As shown, the ratchet gear 232 has an integrally formed coaxial ratchet 2321 and a gear 2322, which are coaxially passed through the ratchet gear shaft 2131. The gear 2322 is on the side close to the base 21. The ratio of the radius of the gear 2322 to the radius of the ratchet 2321 is 20 to 15:10, preferably 17:10.

[0067] like Figure 2E As shown, the ratchet drive 233 includes a driving pawl 2331 and a non-return pawl 2332. The driving pawl 2331 and the non-return pawl 2332 have semicircular butt ends, with curved tips integrally connected to the semicircular butt ends. The butt end of the driving pawl 2331 is coaxially connected to the central axial hole 2315 of the movable handle 231 and is mounted on the side of the movable handle 231 near the ratchet cavity 213 by a shoulder screw. The non-return pawl 2332 is connected to the pawl shaft 2132 within the ratchet cavity 213. In operating mode, the tips of the driving pawl 2331 and the non-return pawl 2332 can be inserted into the tooth grooves of the ratchet 2321. There is also a driving pawl spring 23311 on the driving pawl 2331 of the ratchet gear driving member 233, one end of the driving pawl spring 23311 is connected to the inner wall of the ratchet gear cavity 213, and the other end is connected to the middle part of the driving pawl 2331; the non-return pawl 2332 of the ratchet gear driving member 233 is also connected to the non-return pawl spring 23321, one end of the non-return pawl spring 23321 is connected to the inner wall of the ratchet gear cavity 213, and the other end is connected to the non-return pawl 2332.

[0068] In this example, the variable ratchet gear mechanism 23 also includes a mode shifting member 234, which includes a shifting ring 2341 and a slide bar 2342. The center hole of the shifting ring 2341 is sleeved on the ratchet gear shaft 2131 and is located between the ratchet gear 232 and the movable handle 231. The three corners of the shifting ring 2341 respectively include a shifting end 23411, a first end 23412, and a second end 23413. The shifting end 23411, the first end 23412, and the second end 23413 are evenly distributed around the shifting ring 2341 at an angle of 120°. The slide bar 2342 is cylindrical or can be used as a rod. The slide bar 2342 is provided on the shifting end 23411 and is used to rotate the shifting end 23411 to the operating mode, the braking mode, or the return mode. Figure 2G As shown, in the braking mode, the second end 23413 and the shift end 23411 of the shift ring 2341 can be respectively connected to the driving pawl 2331 and the non-return pawl 2332 in a restraining manner; Figure 2F As shown, in the operating mode, the shift end 23411, the first end 23412 and the second end 23413 of the shift ring 2341 do not have any contact with the driving pawl 2331 and the non-return pawl 2332; Figure 2H As shown, in the return mode, the first end 23412 can disengage the tip of the driving pawl 2331 from the tooth groove of the ratchet 2321 so as to be abutted and connected with the driving pawl 2331, making the driving pawl invalid; the second end 23413 can disengage the tip of the check pawl 2332 from the tooth groove of the ratchet 2321 so as to be abutted and connected with the check pawl 2332, making the check pawl invalid, the ratchet is out of control, free rotation is achieved, and the rack can be retracted.

[0069] like Figure 2IAs shown, the control mechanism also includes a rack assembly 24, which is slidably disposed within the rack groove 212 of the base 21. The distal end of the rack assembly 24 is pushably connected to the clamping and pushing mechanism 10. The ratchet gear 232 can be meshed with the rack assembly 24 to convert the circular motion of the ratchet gear 232 into linear motion of the rack assembly 24. The gear 2322 of the ratchet gear 232 is meshed with the rack assembly 24. The rack assembly 24 includes a rack 241. The rack 241 is elongated and has two elongated guide rails 2411 on its two side walls. The elongated guide rails 2411 are slidably disposed within the guide grooves of the rack groove 212. The rack 241 is slidably disposed on the rack groove 212 via the guide rails 2411 and is meshed with the gear 2322 of the ratchet gear 232. The rack assembly 24 also includes a push rod 242 connected to the distal end of the rack 241. The push rod 242 is generally T-shaped and slidably disposed within the push rod slot 112 of the nail pushing beam 11. The rack assembly 24 also includes a wedge-shaped pressure foot 243, which is in contact with the distal end of the push rod 242. The wedge-shaped pressure foot 243 is generally in a "mountain" shape and is integrally fixedly connected to the distal end of the push rod 242. The wedge-shaped pressure foot 243 is slidably disposed within the axial slot 1211 in the central portion of the body 121 of the double-row nail storage magazine 12, and is used to push the double-ended slider 122 within the magazine.

[0070] In a specific embodiment, the variable ratchet gear mechanism 23 has three modes, namely, running mode, braking mode and return mode. Figure 2F As shown, in the braking mode, the slide bar 2342 slides to the brake position 2262 on the arc groove 226, so that the change ring 2341 is fixed, the driving pawl 2331 and the non-return pawl 2332 are inserted into the tooth groove of the ratchet 2321 connected to the ratchet gear 232, the driving pawl 2331 is abutted against the first end 23412 of the change ring 2341, and the non-return pawl 2332 is abutted against the second end 23413 of the change ring 2341. The above structure blocks the ratchet gear 232, and the movable handle 231 cannot drive the ratchet gear 232 to rotate by the driving pawl 2331. The entire variable ratchet mechanism 23 enters the braking mode. Figure 2G As shown, in the operation mode, the slide bar 2342 slides to the operation position 2261 on the arc groove 226, so that the change ring 2341 is fixed. At this time, the change ring 2341 has no contact with the driving pawl 2331 and the non-return pawl 2332. The operator can hold the movable handle 231 and the fixed handle 211 and use the force of the fingers to drive the movable handle 231 to move and then drive the ratchet gear 232 to rotate. At this time, the driving pawl 2331 and the non-return pawl 2332 are inserted into the tooth groove of the ratchet wheel 2321 of the ratchet gear 232 and move within the working range with the rotating ratchet gear 232. Figure 2HAs shown, in the return mode, the slide bar 2342 slides to the return position 2263 on the arc groove 226, so that the change ring 2341 is fixed. At this time, the change ring 2341 lifts the non-return pawl 2332 and the driving pawl 2331, and the non-return pawl 2332 and the driving pawl 2331 do not contact the ratchet gear 232, so that the driving pawl and the non-return pawl are invalid. The ratchet gear is out of control and can rotate freely. The rack can be retracted and invalidated, and the ratchet gear 232 can rotate with the movement of the rack 241. The rack assembly 24 can be retracted and withdrawn from the nasal cavity by pushing the edge of the rack 241.

[0071] In this example, the clamping and pushing nail mechanism 10 has a nail pushing beam 11, such as Figure 3B As shown, the nail pushing beam 11 is a long strip or other shape that can be used for pushing nails. One end of the nail pushing beam 11 is integrally connected to the upper distal end of the base 21. The nail pushing beam 11 has a box groove 111 and a push rod groove 112 connected to the box groove 111. The box groove 111 is in the shape of a rectangular parallelepiped or other suitable shape. Figure 1B As shown, a plurality of slots 113 are respectively provided on the two side walls of the nail-pushing beam 11 .

[0072] like Figure 3A As shown, the clamping and pushing nail mechanism 10 also has a double-row nail storage box 12, as shown in FIG. Figure 3C As shown, the double-row nail storage box 12 is generally rectangular or in other suitable shapes. It is mounted within the slot 111 of the base 21. The wedge-shaped presser foot 243 pushes the nails 90 within the double-row nail storage box 12 through the suture tissue to the other end of the clamping beam 13. The double-row nail storage box 12 comprises a box body 121 with an axial slot 1211 defined in the middle of the box body 121. The slot 1211 is located in the middle of the box body 121 and accommodates the middle portion of the wedge-shaped presser foot 243. The outer wall of the box body 121 has several latches 1213, which correspond to the positions of the latches 113 of the nail pushing beam 11. These latches engage with the latches 113 of the nail pushing beam 11, securing the double-row nail storage box 12 within the slot 111 of the nail pushing beam 11. The two sides 21 and 41 of the box body 121 are respectively provided with a plurality of double-row nail storage grooves 1212 that are interconnected. The double-row nail storage grooves 1212 can accommodate nails 90 for penetrating and suturing the nasal septum tissue.

[0073] In this example, the nail 90 is a T-shaped nail. The pointed end of the nail 90 effectively increases local pressure on the suture tissue during the puncture action, making it easier for the nail 90 to penetrate. After the puncture action is completed, the top bar of the nail 90 can effectively withstand the thrust. After reaching the suture tissue, it increases the contact surface, reduces the pressure on the suture tissue, and provides a stopping surface for the pushing process. Furthermore, after the nail 90 completes the puncture, its hook-shaped end effectively prevents the nail 90 from sliding off. After the clamping and pushing mechanism 10 is released and withdrawn, the nail 90 remains on the suture tissue and maintains a certain contraction force, thus completing the suture.

[0074] like Figure 3D As shown, the double-row nail storage box 12 also has two rows of double-headed sliders 122, which are respectively located at the upper part of the double-row nail storage grooves 1212. The wedge-shaped presser foot 243 can be pressed on the double-headed slider 122. The inclined surface of the wedge-shaped presser foot 243 can cooperate with the inclined surface of the double-headed slider 122. When the wedge-shaped presser foot 243 slides toward the distal end, it pushes the double-headed slider 122 to slide in the double-row nail storage grooves 1212 of the double-row nail storage box 12, thereby pushing the nails 90 close to the suture tissue for suturing. The double-headed slider 122 also has a nail clamping position 1221, which can cooperate with the top horizontal bar of the nail 90 to fix the nail 90 in the double-row nail storage groove 1212 during the suturing action.

[0075] In this example, the clamping and nail-pushing mechanism 10 also has a clamping beam 13, which is parallel to the nail-pushing beam 11. The lower distal end of the base 21 has a slide groove 214, and a fastening nut 2141 is provided in the slide groove 214. The clamping beam 13 is L-shaped as a whole, and the horizontal bar at one end of the L-shaped clamping beam 13 is movably set at the lower distal end of the base 21. The horizontal surface of the L-shaped clamping beam 13 parallel to the nail-pushing beam 11 is the clamping surface. The clamping beam 13 is slidably set at one end of the lower distal end of the base 21 and has a slide rail 131. The clamping beam 13 is slidably set in the slide groove 214 at the lower distal end of the base 21 through the slide rail 131. As shown in FIG. Figure 3E As shown, one end of the clamping beam 13 is connected to a fastening screw 133 that can fix the clamping beam 13 in the slide groove 214. The fastening screw 133 is connected to a fastening nut 2141. When the clamping beam 13 reaches the clamping position, the fastening screw 133 and the fastening nut 2141 are tightened together to fix the clamping beam 13. The other end of the clamping beam 13 is provided with N slots 132 on the side corresponding to the box groove 111 for the nail 90 to pass through. During the puncture process of the nail 90, a pressure difference is formed on both sides of the suture tissue, facilitating the completion of the puncture action and ensuring more accurate puncture positioning.

[0076] In one embodiment, before performing a septal suturing procedure, the variable ratchet mechanism 23 is first ensured to be in braking mode. Specifically, the slide bar 2342 is slid to the braking position 2262 on the arcuate slot 226. The fixed handle 211 and the movable handle 231 are then gripped with one hand, with the fingers positioned on the inverted U-shaped slot 2313 of the movable handle 231 to secure the device. The clamping and pin-pushing mechanism 10 is then adjusted and loosened. When the clamping beam 13 reaches the clamping position, the fastening screw 133 is tightened in conjunction with the fastening nut 2141 to secure the clamping and pin-pushing mechanism 10. Once the clamping beam 13 is secured, the clamping and pin-pushing mechanism 10 is inserted into the nasal cavity.

[0077] Next, the variable ratchet mechanism 23 is adjusted to the operating mode, i.e., the slide bar 2342 is slid to the operating position 2261 on the arcuate slot 226, allowing the variable ratchet mechanism 23 to operate normally. Next, the movable handle 231 is operated by finger force to open and close it back and forth within a certain angle range. Power is transmitted through the movable handle 231 to the ratchet gear 232, which, through the rotation of the ratchet gear 232, transmits power to the rack 241, driving the rack 241 to slide distally within the rack slot 212. As the rack 241 slides distally, the push rod 242 connected to the rack 241 simultaneously moves distally within the rack slot 212, driving the wedge-shaped presser foot 243 to slide distally within the push rod slot 112 of the push pin beam.

[0078] The distal inclined surface of the wedge-shaped presser foot 243 cooperates with the inclined surface of the double-headed slider 122. When the wedge-shaped presser foot 243 slides distally in the push rod groove 112 of the nail pushing beam 11, the wedge-shaped presser foot 243 also moves distally in the double-row nail storage groove 1212, thereby pushing the double-headed slider 122 to move in the double-row nail storage groove 1212. The movement of the double-headed slider in the double-row nail storage groove 1212 can provide greater pressure to push the nails 90 from the double-row nail storage groove 1212. The row of nail storage slots 12 is pushed toward the suture tissue, and then the tip of the tail of the nail 90 contacts the suture tissue and punctures the suture tissue. Since a slot 132 is provided at a corresponding position on the upper surface of the clamping beam 13, the tip of the tail of the nail 90 punctures the tissue and stops at the slot 132 of the clamping beam 13 after completing the puncture. The slot 132 can form a pressure difference on both sides during the puncture process of the nail 90, facilitating the completion of the puncture action and making the puncture position more accurate. After the nail 90 completes the puncture, its hook-shaped tail can effectively prevent the nail 90 from slipping, so that after the clamping and pushing nail mechanism 10 is released and withdrawn, the nail 90 can still remain on the suture tissue and maintain a certain contraction force to complete the suturing of the suture tissue.

[0079] After the suturing operation is completed, the variable ratchet mechanism 23 is adjusted to the return mode, i.e., the slide bar 2342 slides to the return position 2263 on the arcuate groove 226. At this time, the movable handle 231 can rotate, but no longer drives the rack 241 to move. The fastening screw 133 and the fastening nut 2141 are loosened, and after the clamping beam 13 and the nail pushing beam 11 are pushed out of the nasal cavity, the rack 241 is pushed back to the initial position for adjustment or replacement of the double-row nail storage box 12, waiting for the next use. If it is not used again, the operating slide bar 2342 is returned to the braking position 2262 to return the device to the braking mode. The above operations are all performed by the operator holding the fixed handle 211 and the movable handle 231 with one hand outside the nasal cavity, applying force to the movable handle 231 to drive the variable ratchet mechanism 23, and then the clamping and pressing nailing mechanism 10 to perform the pressing nailing action inside the nasal cavity to sew the nasal septum suture tissue.

[0080] The present invention has been described in detail above with reference to the embodiments of the accompanying drawings. A person skilled in the art can make various modifications to the present invention based on the above description. Therefore, certain details in the embodiments should not be construed as limiting the present invention. The scope of protection of the present invention shall be determined by the scope defined by the appended claims.

Claims

1. A push-stitch type nasal septum anastomosis device, characterized in that The push-stitch type nasal septum anastomosis device comprises: A clamping and pushing mechanism for placing nails to puncture and suture tissue; A control mechanism for controlling the clamping and pushing nail mechanism to push nails is connected to the proximal end of the clamping and pushing nail mechanism, and the control mechanism has: A base, wherein the upper portion thereof is provided with a rack groove, the middle portion thereof is provided with a ratchet gear cavity, and a ratchet gear shaft and a pawl shaft are vertically fixed in the ratchet gear cavity; a rack assembly slidably disposed in the rack groove of the base, wherein the distal end of the rack assembly is pushably connected to the clamping and pushing mechanism; a variable ratchet gear mechanism located in the ratchet gear cavity of the base, the variable ratchet gear mechanism comprising: a ratchet gear and a ratchet gear driving member; the ratchet gear is disposed on the ratchet gear shaft and is meshedly connected to the rack assembly for converting the circular motion of the ratchet gear into the linear motion of the rack assembly; the ratchet gear driving member is drivingly connected to the ratchet gear; The variable ratchet gear mechanism comprises: The ratchet gear comprises an integrally formed ratchet wheel and a coaxially arranged gear, which are coaxially passed through the ratchet gear shaft, and the gear is meshed with the rack assembly; a movable handle, wherein the distal end of the movable handle has a distal shaft hole and the middle portion has a middle shaft hole, and the distal shaft hole of the movable handle is penetrated by the ratchet gear shaft; The ratchet gear driving member has a driving pawl and a non-return pawl, the thick end of the driving pawl is coaxially connected to the middle shaft hole of the movable handle, and the thick end of the non-return pawl is connected to the pawl shaft, and in the operating mode, the tips of the driving pawl and the non-return pawl can be inserted and connected with the tooth grooves of the ratchet; A mode shifting member comprises a shifting ring and a sliding rod, the center hole of the shifting ring being sleeved on the ratchet gear shaft and being located between the ratchet gear and the movable handle, the three corners of the shifting ring respectively having a shifting end, a first end and a second end; the sliding rod is provided on the shifting end for rotating the shifting end to a running mode, a braking mode or a return mode; in the braking mode, the second end and the shifting end of the shifting ring can be respectively connected to the driving pawl and the non-return pawl in a stop-and-go manner; in the return mode, the first end can disengage the tip of the driving pawl from the tooth groove of the ratchet wheel so as to abut against the driving pawl, and the second end can disengage the tip of the non-return pawl from the tooth groove of the ratchet wheel so as to abut against the non-return pawl; The proximal end of the base of the control mechanism has a fixed handle; The rack assembly has a rack.

2. The push-stitch type nasal septum stapler according to claim 1, characterized in that The ratchet drive also has a driving pawl spring, one end of which is connected to the inner wall of the ratchet gear cavity and the other end of which is connected to the driving pawl; A pawl spring has one end connected to the inner wall of the ratchet gear cavity and the other end connected to the non-return pawl.

3. The push-stitch type nasal septum stapler according to claim 1, characterized in that The control mechanism further comprises an upper cover, wherein the upper cover comprises: a cover plate, which is arranged on the base to seal the ratchet gear cavity, and the cover plate has an arcuate groove and a running position, a braking position and a return position distributed on the arcuate groove for accommodating the slide rod; A handle cover is integrally extended from one end of the cover plate, and the handle cover is arranged on the fixed handle of the base.

4. The push-stitch type nasal septum stapler according to claim 1, characterized in that The rack of the rack assembly is meshed with the ratchet gear, guide rails are provided on both side walls of the rack, the inner wall of the rack groove of the base has a guide groove, and the guide rails of the rack are slidably arranged in the guide groove of the rack groove; The rack assembly also has: a push rod connected to the distal end of the rack; A wedge-shaped presser foot is connected to the distal end of the push rod.

5. The push-stitch type nasal septum stapler according to claim 4, characterized in that The clamping and nail-pushing mechanism comprises: a nail pushing beam, one end of which is integrally connected to the upper distal end of the base, the nail pushing beam having a box groove and a push rod groove communicating with the box groove; a clamping beam, parallel to the nail-pushing beam, with one end movably disposed at the lower distal end of the base; A double-row nail storage box is installed in the box groove of the base, and the wedge-shaped presser foot can push the nails in the double-row nail storage box to penetrate the suture tissue to the other end of the clamping beam.

6. The push-stitch type nasal septum stapler according to claim 5, characterized in that The double-row nail storage box has: A box body, having an axial groove in the middle, the axial groove can accommodate the middle part of the wedge-shaped presser foot, and a row of double-row nail storage grooves connected to each other on both sides; Two rows of double-headed sliding blocks are respectively located on the upper parts of the double-row nail storage grooves, and the wedge-shaped presser feet can be pressed on the double-headed sliding blocks.

7. The push-stitch type nasal septum stapler according to claim 6, characterized in that The outer wall of the box body is provided with a plurality of buckles, and the side wall of the nail-pushing beam is provided with a plurality of bayonet holes. The buckles of the box body are engaged and connected with the bayonet holes of the nail-pushing beam.

8. The push-stitch type nasal septum stapler according to claim 5, characterized in that The lower portion of the distal end of the base is provided with a slide groove, and a fastening nut is provided in the slide groove; One end of the clamping beam is connected to a fastening screw that can fix the clamping beam in the chute, and the fastening screw is connected to the fastening nut; The other end of the clamping beam is corresponding to one side of the box slot and is provided with a slot hole for the nail to pass through.

9. The push-stitch type nasal septum stapler according to claim 6, characterized in that The two rows of double-headed sliders are also provided with nail clamping positions for fixing the nails in the nail storage box.

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