A clamp-type suture nasal septum anastomosis device

Abstract

The present invention discloses a clamp-type suture nasal septum anastomosis device, which includes a suture mechanism, a control mechanism connected to the proximal end of the suture mechanism, a positioning and pushing mechanism fixed to the distal end of the control mechanism, and a suture tensioning mechanism connected to the distal end of the control mechanism. During the operation, the positioning and pushing mechanism is used to relatively fix the clamp-type suture nasal septum anastomosis device to the suture tissue, and then the control mechanism drives the suture mechanism to suture the suture tissue with the suture thread wound and tensioned by the suture tensioning mechanism and then led out. The suture mechanism can directly enter the nasal cavity for operation, solving the technical problem of the lack of suitable instruments for nasal septum suture due to the narrow nasal cavity. The control mechanism allows the operator to hold it with one hand and is designed with a return spring, reducing the operation difficulty and shortening the operation time. The positioning and pushing mechanism is provided with a nostril fixing bracket, which can adapt to different nasal cavity environments and improve the suture accuracy of the suture mechanism for the suture tissue.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical devices, and particularly relates to a clamp-type suture nasal septum anastomosis device. Background Art

[0002] Deviation of nasal septum is one of the more common diseases in otorhinolaryngology. Deviation of nasal septum is a common and frequently-occurring disease in the nasal department. It is reported that the incidence rate in the population is 51%, and among them, those who have symptoms and need treatment account for 12%, that is, there are about nearly 6 people in every 100 people who need treatment due to this disease. Deviation of nasal septum is related to factors such as congenital development and trauma. In severe cases of deviation, it can cause poor nasal ventilation and sinus drainage, resulting in symptoms such as nasal congestion, nosebleed, and reflex headache. Long-term adverse symptoms will seriously affect the quality of life of patients and even affect their psychology.

[0003] Septoplasty for the treatment of nasal septum deviation is widely used in clinical medicine. In order to fix the nasal septum and effectively stop bleeding after the operation, the commonly used method at home and abroad is nasal packing. During the packing period, patients will experience headache, nasal congestion, dry mouth, dysphagia, etc., and are prone to secondary complications such as nasal sinus infection and middle ear effusion. In severe cases, it may even induce nasal-cardiac reflex, resulting in serious complications such as arrhythmia and myocardial infarction; the operation of removing the nasal packing is extremely painful for most patients, causing fear and resistance to treatment, and may also cause rebleeding. In severe cases, it will cause syncopal shock.

[0004] According to the preliminary research results in the early stage, septal suture can not only effectively fix the septal cartilage and repair the torn mucosa, but also effectively avoid the pain brought to patients when removing the packing material. In terms of postoperative recovery, for patients undergoing septal suture, the nasal cavity is relatively clean after surgery, less nasal secretions need to be treated after surgery, and the postoperative recovery is relatively fast; septal suture will suture the incision and tie knots at the skin of the nasal vestibule, which is conducive to the healing of the incision and has good alignment, and is aesthetically pleasing. Septal suture can significantly improve the discomfort symptoms of patients after surgery, protect the nasal mucosa function to a greater extent, reduce the occurrence of postoperative complications, the patients recover quickly, and the correction of nasal septum deviation is satisfactory. In short, septal suture belongs to a new technology, which requires the operator to have proficient intranasal operation techniques. Compared with the nasal packing method, using septal suture can significantly reduce the pain and economic burden of patients, help patients recover as soon as possible, has a low incidence of postoperative complications, and shortens the hospital stay. Therefore, septal suture is worthy of clinical promotion and application. However, due to the narrow nasal cavity and the lack of special instruments suitable for septal suture, compared with the traditional packing method, this method has the disadvantages of inconvenient operation and prolonged operation time. For beginners, the learning difficulty increases, and many young doctors are not willing to learn and try, which thus hinders the promotion and application of septal suture. Therefore, it is necessary to explore a septal stapler suitable for septal suture to solve the disadvantages of inconvenient operation and prolonged operation time of septal suture. Summary of the Invention

[0005] In view of the technical problems of inconvenient operation and long operation time existing in the prior art in septal suture, the present invention aims to provide a forceps-shaped suture septal stapler.

[0006] The forceps-shaped suture septal stapler has:

[0007] A suture mechanism provided with a suture thread for suturing the suture tissue;

[0008] A control mechanism for controlling the suture mechanism to perform suturing, the distal end of the control mechanism being connected to the proximal end of the suture mechanism;

[0009] A positioning and pushing mechanism that can be positioned in the nostril, the positioning and pushing mechanism being fixed on the control mechanism;

[0010] A suture thread tensioning mechanism that can wind and tension the suture thread, connected to the control mechanism.

[0011] Preferably, the suture mechanism has:

[0012] A first bracket, the proximal end of which is fixedly connected to the distal end face of the transmission rack in the control base of the control mechanism, and a suture needle through which the suture can be threaded is rotatably provided at the distal end of the first bracket;

[0013] A second bracket, the proximal end of which is fixedly connected to the distal end face of the control base of the control mechanism, and a swing needle for hooking and pulling the suture from the suture needle is rotatably provided at the distal end of the second bracket.

[0014] Preferably, the suture mechanism further has:

[0015] A swing rack fixed to the distal end face of the transmission rack;

[0016] A swing gear that can mesh with the swing rack;

[0017] A swing shaft, the swing shaft is supported on the second bracket, the proximal end of the swing shaft is connected to the swing gear, and the distal end is connected to the swing needle. The transmission rack can drive the swing rack and the swing gear, and then drive the swing shaft and the swing needle to rotate, so as to hook and pull the suture on the suture needle.

[0018] Preferably, the first bracket has:

[0019] An end cavity is provided at the distal end of the first bracket, and the mounting end of the suture needle is arranged in the end cavity;

[0020] A drive plate is slidably arranged on the outside of the first bracket, and the distal end of the drive plate is meshed and connected to the mounting end of the suture needle.

[0021] Preferably, the first bracket further has:

[0022] An outer chute is axially arranged on the outer wall of the first bracket, and the drive plate is slidably arranged in the outer chute;

[0023] An inner chute for accommodating the suture needle is axially arranged on the inner wall of the first bracket;

[0024] A suture needle end cover is arranged on the end cavity.

[0025] Preferably, the second bracket further has:

[0026] An independent support cavity is provided at the distal end of the second bracket, the swing needle is arranged in the independent support cavity, and an opening for the suture needle to pass through is provided on the surface of the independent support cavity facing the first bracket.

[0027] Preferably, the suture tensioning mechanism has:

[0028] A one-way wire winding post around which the suture can be wound, provided on the control base of the control mechanism;

[0029] A tensioning pendulum wheel for tensioning the suture, provided on the first bracket of the suture mechanism.

[0030] Preferably, the suture tensioning mechanism further has:

[0031] A tension spring, one end of the tension spring is connected to the first bracket, and the other end is connected to the tensioning pendulum wheel;

[0032] A one-way friction wheel, provided on the control base of the control mechanism, and cooperating with the one-way wire winding post.

[0033] Preferably, the positioning and pushing mechanism has:

[0034] A pushing bracket, the pushing bracket has an axially arranged chute, and the proximal end is fixed on the control mechanism;

[0035] A pushing member, slidably arranged in the chute of the pushing bracket,

[0036] A nostril fixing bracket, connected to the distal end of the pushing member, and the nostril fixing bracket is pushed by the pushing member to a suitable position in the nostril for support and positioning.

[0037] Preferably, the control mechanism has:

[0038] The control base, a main gear, an angle adjusting gear coaxially arranged with the main gear, and the transmission rack meshing with the main gear are provided in the control base;

[0039] A movable handle, the distal end is sleeved outside the angle adjusting gear and meshed and connected with the angle adjusting gear, and is used to drive the angle adjusting gear to drive the main gear to rotate so as to drive the transmission rack;

[0040] A base handle, the distal end of the base handle is fixedly connected to the proximal end of the control base, and the movable handle and the base handle are hinged and paired through the main gear and the angle adjusting gear.

[0041] The positive and progressive effects of the present invention are:

[0042] 1) The clamp-type suture nasal septum anastomosis device of the present invention includes a control mechanism, a suture tensioning mechanism, a positioning and pushing mechanism, and a suture mechanism. The distal end of the control mechanism is connected to the proximal end of the suture mechanism. The positioning and pushing mechanism is fixed on the control mechanism, and the suture tensioning mechanism is connected to the control mechanism. First, use the positioning and pushing mechanism to gradually push to a suitable position in the nostril for positioning. At this time, the suture mechanism reaches the position of the nasal septum to be sutured in the nasal cavity. Then, use the control mechanism to drive the swing needle of the suture mechanism to cooperate with the suture needle to suture the nasal septum. At this time, the suture thread wound and tensioned by the suture tensioning mechanism is used to suture the suture tissue. The suture mechanism can directly enter the nasal cavity for operation, solving the technical problem in the current technology that due to the narrow nasal cavity, there is a lack of special instruments suitable for nasal septum suture surgery.

[0043] 2) The control mechanism of the clamp-type suture nasal septum anastomosis device of the present invention allows the operator to hold and operate with one hand. The suture mechanism is driven by the movement of the control mechanism to suture the suture tissue in the nasal cavity. At the same time, the control mechanism is designed with a return spring, which can reduce the operation difficulty and fatigue of the operator. In this way, the operation difficulty of nasal septum suture surgery can be reduced, and the operation time can be shortened accordingly.

[0044] 3) The positioning and pushing mechanism of the clamp-type suture nasal septum anastomosis device of the present invention is designed with a nostril fixing bracket, which can adapt to different nasal cavity environments, expand the use range of the clamp-type suture nasal septum anastomosis device, and can also realize the precise movement of the clamp-type suture nasal septum anastomosis device in the nasal cavity, improving the suture accuracy of the suture tissue. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1A is a three-dimensional structure schematic diagram of the clamp-type suture nasal septum anastomosis device of the present invention;

[0046] Figure 1B is a side structure schematic diagram of the clamp-type suture nasal septum anastomosis device of the present invention;

[0047] Figure 1C is Figure 1A another side structure schematic diagram;

[0048] Figure 1D is an exploded view of the structure of the clamp-type suture nasal septum anastomosis device of the present invention;

[0049] Figure 2 is an exploded view of the overall structure of the control mechanism 20 of the present invention;

[0050] Figure 3 is an exploded view of the internal structure of the control base 21 of the control mechanism 20 of the present invention;

[0051] Figure 4 is an exploded view of the overall structure of the suture tensioning mechanism 40 of the present invention;

[0052] Figure 5 This is an exploded view of the overall structure of the positioning and pushing mechanism 30 of the present invention;

[0053] Figure 6A This is an exploded view of the overall structure of the suturing mechanism 10 of the present invention;

[0054] Figure 6B This is a schematic diagram of the overall structure of the suturing mechanism 10 of the present invention;

[0055] Figure 7 This is a schematic diagram of the working process of the suturing mechanism 10 of the present invention. Detailed implementation manners

[0056] The following uses specific examples to illustrate the implementation manners of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation manners. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.

[0057] It should be noted that in the present invention, the terms "distal end" and "proximal end" are used as orientation terms, which are common terms in the field of medical devices. Among them, the "distal end" refers to the end far from the operator during the surgical process, and the "proximal end" refers to the end close to the operator during the surgical process. The "axial direction" refers to the length direction of the positioning and pushing mechanism. The "radial direction" refers to the direction perpendicular to the axial direction of the positioning and pushing mechanism.

[0058] As shown in FIG. 1, the present invention provides a forceps-type suture nasal septum anastomosis device, including: a suturing mechanism 10 through which a suture 90 is threaded to suture the tissue to be sutured, a control mechanism 20 for controlling the suturing mechanism 10 to perform suturing, a positioning and pushing mechanism 30 that can be positioned in the nasal cavity, and a suture tensioning mechanism 40 that can wind and tension the suture 90. The distal end of the control mechanism 20 is connected to the proximal end of the suturing mechanism 10, the proximal end of the positioning and pushing mechanism 30 is fixed on the distal end of the control mechanism 20, and the suture tensioning mechanism 40 is connected to the distal end of the control mechanism 20 and the proximal end of the suturing mechanism 10.

[0059] As Figure 2As shown, the control mechanism 20 has a control base 21. The control base 21 has a first wheel seat plate 211 and a second wheel seat plate 212. The first wheel seat plate 211 and the second wheel seat plate 212 are placed parallel to and corresponding to each other, with a certain distance between them. The outer side surface of the first wheel seat plate 211 is recessed with an Ω-shaped concave hole. Bearings 22 are respectively provided at the centers of the first wheel seat plate 211 and the second wheel seat plate 212. The control base 21 also has a rack seat 213. The two side edges of the proximal side surface of the rack seat 213 are respectively fixedly connected to the first wheel seat plate 211 and the second wheel seat plate 212. A rack groove 2131 is provided on the inner side of the proximal end of the rack seat 213. Track grooves 21311 are respectively provided on the two side walls of the rack seat 213 at the rack groove 2131.

[0060] As Figure 3 shown, a main gear 23, an angle adjustment gear 24, and a transmission rack 25 are provided inside the control base 21. The main gear 23 is located between the first wheel seat plate 211 and the second wheel seat plate 212 and is connected to the two bearings 22 through a gear shaft 231. The angle adjustment gear 24 is coaxially arranged with the main gear 23. The ratio of the radius of the main gear 23 to the radius of the angle adjustment gear 24 is 100:45 - 55, preferably 100:50. Guide rails 251 are respectively provided on the two side surfaces of the transmission rack 25. The guide rails 251 of the transmission rack 25 are slidably embedded in the track grooves 21311 of the rack groove 2131 of the rack seat 213. The transmission rack 25 is meshed with the main gear 23 to realize the transmission of displacement and torque to the angle adjustment gear 24.

[0061] Continuing as Figure 2 shown, the control mechanism 20 also has a movable handle 26. The proximal end of the movable handle 26 can be in the shape of a long strip handle or other shapes that can be used as a handle. The distal end has an internal gear ring 261, and the inner ring of the internal gear ring 261 is toothed. The internal gear ring 261 at the distal end of the movable handle 26 is placed in the Ω-shaped concave hole on the outer side surface of the first wheel seat plate 211. The internal gear ring 261 at the distal end of the movable handle 26 is sleeved outside the angle adjustment gear 24 and is meshed with the angle adjustment gear 24 to complete the adjustment of the angle and the transmission of torque. The movable handle 26 is used to drive the angle adjustment gear 24 to drive the main gear 23 to rotate, thereby driving the transmission rack 25.

[0062] In this example, the control mechanism 20 also has a base handle 27. The base handle 27 can be in the shape of a long strip or other shapes that can be used as a handle. The distal end of the base handle 27 is fixedly connected to the proximal end of the control base 21. The movable handle 26 and the base handle 27 are hinged and paired through the main gear 23 and the angle adjustment gear 24. A variable included angle is formed between the movable handle 26 and the base handle 27, so that the movable handle 26 can only move within a predetermined path range.

[0063] In this example, the control mechanism 20 further includes a return spring 28. There is a first round hole 271 on the inner side of the distal end of the base handle 27, and a second round hole 262 on the inner side of the distal end of the movable handle 26. One end of the return spring 28 is connected in the first round hole 271, and the other end is connected in the second round hole 262. When the operator exerts force on the movable handle 26 and the base handle 27 in a paired compression manner, the return spring 28 stores energy. After the pliers-type suture nasal septum anastomosis device completes the suture action, the operator releases the force, and the return spring 28 resets to realize the automatic reset of the base handle 27 and the movable handle 26, which can reduce the operation difficulty and fatigue of the operator during operation.

[0064] Continue as Figure 3 shown, a spacer 232 and a fastening nut 233 are sleeved on one side of the angle adjustment gear 24 on the gear shaft 231. The fastening nut 233 is composed of a hexagonal nut and a circular nut spacer. There is also a pre-tightening spring 234 between the spacer 232 and the fastening nut 233. One end of the pre-tightening spring 234 contacts the spacer 232, and the other end contacts the circular nut spacer of the fastening nut 233. The installation of the spacer 232, the fastening nut 233 and the pre-tightening spring 234 can realize the fixed installation of the internal gear ring 261 and the angle adjustment gear 24, and prevent the angle adjustment gear 24 from loosening during the suture process.

[0065] As Figure 4 shown, the pliers-type suture nasal septum anastomosis device of the present invention further includes a suture tensioning mechanism 40. The suture tensioning mechanism 40 has an Ω-shaped wire winding fixing seat 41. The lower end of the Ω shape of the wire winding fixing seat 41 is fixed on the outer side of the rack seat 213 at the end of the control base 21 of the control mechanism 20. The suture tensioning mechanism 40 also has a one-way wire winding column 42. The one-way wire winding column 42 is fixed on the rack seat 213 at the end of the control base 21 of the control mechanism 20, and the one-way wire winding column 42 also passes through the middle position of the wire winding fixing seat 41.

[0066] In this example, the suture tensioning mechanism 40 further includes a one-way friction wheel 43. The one-way friction wheel 43 is a triangular ratchet structure and is arranged on the control base 21 of the control mechanism 20. The one-way friction wheel 43 cooperates with the one-way wire winding column 42 in motion. The one-way friction wheel 43 can only move towards the side with a smaller right-angle side. When moving towards the hypotenuse direction, it will prevent rotation, so that the one-way wire winding column 42 can only release wire in one direction, which can prevent the suture 90 from loosening during the suture process.

[0067] In this example, the suture tensioning mechanism 40 further has a tensioning pendulum wheel 44. The tensioning pendulum wheel 44 is integrally L-shaped. One end of the L-shaped tensioning pendulum wheel 44 is connected to the first bracket 61 of the suturing mechanism 60, and the turning point of the L-shaped tensioning pendulum wheel 44 is connected to one end of the tension spring 45. The suture tensioning mechanism 40 further has a tension spring 45, one end of which is connected to the turning point of the L-shaped tensioning pendulum wheel 44, and the other end is connected to the first bracket 11 of the suturing mechanism 10. After the suture 90 comes out of the one-way winding column 42, it is wound into the upper groove 441 of the tensioning pendulum wheel 44 and passes out through the wire hole 442, and then is wound onto the suturing mechanism 10. When the suturing mechanism 10 moves, the tensioning pendulum wheel 44 moves up and down with the first bracket 11 and swings left and right under the action of the tension spring 45 in cooperation with the tension of the suture 90 to tension the suture 90.

[0068] As Figure 5 shown, the forceps-type nasal septum anastomosis stapler of the present invention further includes a positioning and pushing mechanism 30. The positioning and pushing mechanism 30 has a strip-shaped pushing bracket 31, and the proximal end of the pushing bracket 31 is fixed on the control mechanism 20. The pushing bracket 31 has an axially arranged chute, and the chute has an upper chute 311 and a lower chute 312 radially communicating with the upper chute 311. The upper parts of the two side walls of the upper chute 311 have a number of triangular concave teeth. The cross-section of the upper chute 311 is cross-shaped, and the cross-section of the lower chute 312 is T-shaped.

[0069] In this example, the positioning and pushing mechanism 30 further has a pusher 32, and the pusher 32 is slidably arranged in the chute of the pushing bracket 31. The pusher has a pushing strip 321 and a finger-pressing pusher block 322. The cross-section of the pushing strip 321 is T-shaped and is slidably arranged in the lower chute 312. The distal end of the pushing strip 321 also has a cylindrical vertical connecting column 3211. The cross-section of the finger-pressing pusher block 322 is cross-shaped, and the finger-pressing pusher block 322 is slidably arranged in the upper chute 311. The lower surface of the finger-pressing pusher block 322 is fixedly connected to the upper surface of the proximal end of the pushing strip 321. At least one elastic convex tooth that can be engaged into the triangular concave teeth is provided on each of the two side walls of the finger-pressing pusher block 322. When the finger-pressing pusher block 322 is pressed, the elastic convex teeth are squeezed against the lower parts of the two side walls of the upper chute 311, so that the cooperation between the triangular concave teeth and the elastic convex teeth is released, and thus the finger-pressing pusher block 322 can slide in the upper chute 311. When the pressing is released, the elastic convex teeth automatically rebound by relying on the structural material itself. The upper surface of the finger-pressing pusher block 322 has anti-slip convex strips, which can play an anti-slip role when the operator operates and presses the finger-pressing pusher block 322.

[0070] In this example, the positioning and pushing mechanism 30 further has a nostril fixing bracket 33, which is connected to the distal end of the pushing member 32. The nostril fixing bracket 33 has two frustum-shaped funnels 331. The surfaces of the two frustum-shaped funnels 331 can be reticular or in other shapes that can contact the interior of the nasal cavity, and are used to gradually push the positioning and pushing mechanism 30 to a suitable position in the nostril and perform positioning. At this time, the suture mechanism 10 reaches the position to be sutured on the nasal septum in the nasal cavity, and then the control mechanism 20 drives the suture mechanism 10 to suture the nasal septum. The nostril fixing bracket 33 also has a connecting frame 332, which is in a form similar to a V shape, a C shape, a side door shape, or other forms that can be used for connection and fixation. The two ends of the connecting frame 332 are respectively fixedly connected to the side walls of the two frustum-shaped funnels 331. The middle part of the connecting frame 332 has a circular connecting hole 3321, and the connecting hole 3321 is fixedly connected to the vertical connecting column 3211 at the distal end of the pushing bar 321.

[0071] In a specific implementation case, when the operator performs nasal septum suture, the operator holds the base handle 27 and the movable handle 26 of the pliers-type suture nasal septum anastomosis device with one hand. The operator applies force to the anti-slip convex strips on the finger pressure pushing block 322 outside the nasal cavity to push the finger pressure pushing block 322 of the positioning and pushing mechanism 30 to slide distally in the upper sliding groove 311. The finger pressure pushing block 322 drives the pushing bar 321 to move distally in the lower sliding groove 312, and further drives the nostril fixing bracket 33 to move distally to reach a suitable position in the nasal cavity. After the suture mechanism 10 completes the suture action, the operator applies force to the anti-slip convex strips on the finger pressure pushing block 322 outside the nasal cavity to push the finger pressure pushing block 322 of the positioning and pushing mechanism 30 to slide proximally in the upper sliding groove 311. The finger pressure pushing block 322 drives the pushing bar 321 to slide proximally in the lower sliding groove 312, and withdraws the positioning and pushing mechanism 30 from the nasal cavity.

[0072] As Figure 6A shown, the pliers-type suture nasal septum anastomosis device of the present invention further includes a suture mechanism 10. The suture mechanism 10 is provided with a suture thread 90 and can suture the suture tissue. The suture mechanism 10 has a first bracket 11, which is integrally in a long strip shape or any other shape that can be used as a bracket. The proximal end of the first bracket 11 is fixedly connected to the distal end surface of the transmission rack 25 in the control base 21 of the control mechanism 20. The first bracket 11 can move with the movement of the transmission rack 25. A terminal cavity 111 is provided at the distal end of the first bracket 11. A round hole 1111 is provided in the terminal cavity 111, and a suture needle 112 that can pass through the suture thread 90 is rotatably provided in the round hole 1111. One end of the suture needle 112 is a sharp needle nose, which can bring the suture thread 90 through the tissue to be sutured, and the other end is provided with an incomplete gear. The first bracket 11 also has a suture needle end cover 113, which is covered on the terminal cavity 111 and cooperates with the suture needle 112 to ensure the stability of the suture needle 112.

[0073] In this example, the first bracket 11 of the suture mechanism 10 further has an outer chute 114 and an inner chute 115. The outer chute 114 is axially arranged on the outer wall of the first bracket 11, and the inner chute 115 is axially arranged on the inner wall of the first bracket 11. The inner chute 115 can be used to accommodate the suture needle 112. The first bracket 11 of the suture mechanism 10 further has a drive plate 116, which is slidably arranged in the outer chute 114. The drive plate 116 has a retracting and releasing drive plate 1161 and a retracting and releasing bottom plate 1162. The distal end of the retracting and releasing drive plate 1161 is fixedly connected to the proximal end of the retracting and releasing bottom plate 1162. The lower surface of the distal end of the retracting and releasing bottom plate 1162 of the drive plate 116 is gear-shaped and meshes with the incomplete gear end at the distal end of the suture needle 112, so that the suture needle 112 can be retracted and released in the inner chute 114 of the first bracket 11 during operation.

[0074] In this example, the suture mechanism 10 further has a second bracket 12, which is generally L-shaped or can be of any other shape that can serve as a bracket. The proximal end of the second bracket 12 is fixedly connected to the distal end surface of the control base 21 of the control mechanism 20 and remains relatively fixed to the control base 21. The placement direction of the second bracket 12 is the same as that of the first bracket 11. The distal end of the second bracket 12 is provided with an independent support cavity 121, which is generally cube-shaped or other three-dimensional structures with a hollow interior, and two of its sides are open. The side of the independent support cavity 121 facing the first bracket 11 has an opening for the suture needle 112 to pass through, and the side opposite to the side with the opening is connected to the distal end of the second bracket 12.

[0075] In this example, the suture mechanism 10 further has a swing rack 13, which is fixed at the middle position of the distal end surface of the transmission rack 25. The second bracket 12 of the suture mechanism 10 further has a swing shaft 122, which is supported and arranged in the shaft hole 123 on the side of the second bracket 12 facing the first bracket 11. The arrangement of the shaft hole 123 facilitates the passing of the swing shaft 122 and provides limit and support for the swing shaft 122. The proximal end of the swing shaft 122 is connected with a swing gear 124, and the swing gear 124 can be meshed with the swing rack 13. The distal end of the swing shaft 122 is connected with a swing needle 125, and the swing needle 125 is placed in the independent support cavity 121 at the distal end of the second bracket 12. One end of the swing needle 125 is in the shape of a crochet needle, and the other end is fixedly connected to the distal end of the swing shaft 122. The crochet needle shape of the swing needle 125 can cooperate with the suture needle 112 during the swinging process to pick up and place the suture thread 90. During the operation process, the drive of the transmission rack 25 drives the swing rack 13 to make a linear reciprocating motion, and then the swing rack 13 drives the swing gear 124 to make a reciprocating rotational motion, thereby driving the swing shaft 122 and the swing needle 125 to rotate, so as to hook and pull the suture thread 90 on the suture needle 112.

[0076] Continuing with the same embodiment, after the suturing mechanism 10 reaches the appropriate position in the nasal cavity and the nostril fixing bracket 33 fixes the nasal cavity, the operator applies an external force outside the nasal cavity to push the retraction and release drive plate 1161 on the first bracket 11, driving the retraction and release bottom plate 1162 to slide distally in the outer chute 114, thereby driving the suture needle 112 to rotate, causing the suture needle 112 to rotate out of the inner chute 115 of the first bracket 11 and aligning it with the opening on the surface of the independent support cavity 121 of the second bracket 12 facing the first bracket 11.

[0077] After the suture needle 112 rotates out, the operator applies a force with the hand to drive the movable handle 26 to move within a predetermined path range. The movable handle 26 drives the angle adjustment gear 24 to rotate, driving the main gear 23 to rotate, thereby driving the transmission rack 25 to perform a linear reciprocating motion.

[0078] As Figure 7 shown, the transmission rack 25 drives the first bracket 11 fixedly connected to the transmission rack 25 to move, and further drives the suture needle 112 at the distal end of the first bracket 11 to approach the opening on the surface of the independent support cavity 121 at the distal end of the second bracket 12 facing the first bracket 11. While the transmission rack 25 drives the first bracket 11 to move, it also drives the swing rack 13 to move. When the swing rack 13 reaches the designated position, it meshes with the swing gear 123, driving the swing gear 124 to rotate. The swing gear 124 drives the swing shaft 122 to perform a reciprocating circular rotation within the shaft hole 123, and further drives the swing needle 125 at the end of the swing shaft 122 to reciprocate. The above steps can achieve the cooperation between the swing needle 125 and the suture needle 112. After the suture needle 112 drives the suture thread 90 through the suture tissue, the swing needle 125 can use its hook end to hook the suture thread 90.

[0079] After the suturing action of the swing needle 125 is completed, the operator pushes the retraction and release drive plate 1161 on the first bracket 11 outside the nasal cavity to drive the retraction and release bottom plate 1162 to slide proximally in the outer chute 114, causing the suture needle 112 to rotate back into the inner chute 115 of the first bracket 11. Then, the operator applies a force with the hand outside the nasal cavity to push the finger pressure push block 322 of the positioning and pushing mechanism 30 to slide proximally in the upper chute 311, retract the nostril fixing bracket 33, and then withdraw the suturing mechanism 10 from the nasal cavity. Thus, the suture of the suture tissue by the pincer-shaped suture type nasal septum anastomosis device is completed.

[0080] The control mechanism 20 is provided for the pliers-type suture nasal septum anastomosis device of the present invention. The operator can hold and operate the control mechanism 20 with one hand, thereby controlling the suture mechanism 10 to suture the suture tissue. The control mechanism 20 is also designed with a return spring 28, which can reduce the operation difficulty and fatigue of the operator. By designing the distributed pushing and positioning mechanism 30, the pliers-type suture nasal septum anastomosis device can adapt to different nasal cavity environments, expand the use range of the pliers-type suture nasal septum anastomosis device, and can also realize the precise movement of the pliers-type suture nasal septum anastomosis device in the nasal cavity, improving the suture accuracy of the suture tissue. The suture line tensioning mechanism 40 ensures that the suture line 90 can only be wound out unidirectionally and makes the suture line 90 have a certain tension during the working process. The suture mechanism 10 can perform actions such as the retraction and release, puncture, and suture of the suture needle 112 in the nasal cavity. The design of the above structures solves the problem of inconvenient operation in the traditional method, thereby shortening the operation time and reducing the technical difficulty of the existing nasal septum suture technique.

[0081] The present invention has been described in detail with reference to the accompanying drawings and embodiments. Those of ordinary skill in the art can make various variations to the present invention according to the above description. Therefore, certain details in the embodiments should not constitute a limitation to the present invention, and the present invention will take the scope defined by the appended claims as the protection scope.

Claims

1. A pincette suture type nasal septum anastomosis device, characterized in that Having: A suture mechanism provided with a suture thread for suturing suture tissues; A control mechanism for controlling the suture mechanism to perform suturing, with the distal end of the control mechanism connected to the proximal end of the suture mechanism; A positioning and pushing mechanism that can be positioned within the nasal cavity, with the positioning and pushing mechanism fixed to the control mechanism; A suture thread tensioning mechanism that can wind and tension the suture thread, connected to the control mechanism; Wherein, the suture mechanism has: A first bracket, with the proximal end fixedly connected to the distal face of the transmission rack within the control base of the control mechanism, and a suture needle capable of passing through the suture thread rotatably provided at the distal end of the first bracket; A second bracket, with the proximal end fixedly connected to the distal face of the control base of the control mechanism, and a swing needle capable of pulling the suture thread from the suture needle rotatably provided at the distal end of the second bracket; The second bracket further has: an independent support cavity provided at the distal end of the second bracket, with the swing needle provided within the independent support cavity, and an opening for the suture needle to pass through provided on the face of the independent support cavity facing the first bracket; A swing rack fixed to the distal face of the transmission rack; A swing gear that can mesh with the swing rack; A swing shaft, with the swing shaft supported on the second bracket, the proximal end of the swing shaft connected to the swing gear, and the distal end connected to the swing needle; Wherein, the positioning and pushing mechanism has: A pushing bracket, with an axially provided sliding groove on the pushing bracket, and the proximal end fixed to the control mechanism; A pushing member slidably provided within the sliding groove of the pushing bracket; A nasal cavity fixing bracket connected to the distal end of the pushing member; Wherein, the control mechanism has: The control base, with a main gear, an angle adjustment gear coaxially provided with the main gear, and the transmission rack meshing with the main gear provided within the control base; An activity handle, with the distal end sleeved outside the angle adjustment gear and meshingly connected to the angle adjustment gear; A base handle, with the distal end of the base handle fixedly connected to the proximal end of the control base, and the activity handle and the base handle being hinged and paired through the main gear and the angle adjustment gear.

2. The pliers-type suture nasal septum anastomosis device according to claim 1, characterized in that The first bracket has: An end cavity provided at the distal end of the first bracket, with the mounting end of the suture needle provided within the end cavity; A driving plate slidably provided outside the first bracket, with the distal end of the driving plate meshingly connected to the mounting end of the suture needle.

3. The pincer-shaped suture type nasal septum anastomosis device according to claim 2, characterized in that The first bracket further has: An outer sliding groove axially provided on the outer sidewall of the first bracket, with the driving plate sliding within the outer sliding groove; An inner sliding groove capable of accommodating the suture needle, axially provided on the inner sidewall of the first bracket; A suture needle end cover covering the end cavity.

4. The pincer-shaped suture type nasal septum anastomosis device according to claim 1, characterized in that The suture thread tensioning mechanism has: A one-way winding column capable of winding the suture thread, provided on the control base of the control mechanism; A tensioning swing wheel capable of tensioning the suture thread, provided on the first bracket of the suture mechanism.

5. The pincer-shaped suture type nasal septum anastomosis device according to claim 4, characterized in that The suture thread tensioning mechanism further has: A tension spring, one end of the tension spring is connected to the first bracket, and the other end is connected to the tension balance wheel; A one-way friction wheel is arranged on the control base of the control mechanism and cooperates with the one-way winding column.

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