Recyclable achilles tendon minimally invasive suturing instrument and suturing method

Abstract

The invention discloses a recyclable achilles tendon minimally invasive suturing instrument and a suturing method, and relates to the technical field related to achilles tendon suturing, the device comprises a main body frame, and further comprises a rotating block connected with the main body frame through a first angle adjusting unit; the puncture unit comprises a plurality of puncture sleeves which are symmetrically arranged; a rotating ball is arranged on the rotating block, the puncture sleeve penetrates through the rotating ball and the first adjusting ring and is arranged above the rotating block, the puncture sleeve is sleeved with the first adjusting ring, the first adjusting ring is connected with the rotating block through an angle adjusting and limiting unit, and the angle adjusting and limiting unit is used for adjusting the angle of the puncture sleeve and limiting the position of the puncture sleeve; according to the puncture needle, the puncture sleeve is rotated with the rotating ball as the rotating base point, the puncture angle of the puncture needle is adjusted, then the rotating angle of the puncture sleeve is adjusted through the angle adjusting and limiting unit, the position of the puncture sleeve is limited, and it is determined that the stability of the puncture sleeve is kept when the puncture needle conducts puncture.

Description

Technical Field

[0001] The present invention relates to the technical field related to Achilles tendon suturing, and in particular to a reusable minimally invasive Achilles tendon suturing instrument and suturing method. Background Art

[0002] The Achilles tendon is a tendinous structure that extends from the lower end of the belly of the triceps surae, namely the gastrocnemius and soleus muscles, and ends at the calcaneal tuberosity. It is one of the thickest and largest tendons in the human body and is of great significance for the body's walking, standing and maintaining balance. The high-risk groups for Achilles tendon rupture are student athletes and actors. In recent years, with the widespread development of mass sports and the continuous improvement of sports levels, the incidence of Achilles tendon rupture has increased year by year. Except for a few open Achilles tendon ruptures caused by in situ Achilles tendon trauma, most Achilles tendon ruptures are caused by indirect external forces. Some patients with Achilles tendon rupture have Achilles tendon-related chronic diseases before the Achilles tendon rupture.

[0003] After searching, the patent publication number is CN216221536U, which discloses a Chinese patent for a minimally invasive Achilles tendon anastomosis forceps. The rotation of the rotating rod can drive the rotation of the gear, and the rotation of the gear can drive the sliding of the L-shaped rack. The sliding of the L-shaped rack can drive the sliding of the connecting plate, and the sliding of the connecting plate can drive the sliding of the moving block. The cooperation of the positioning plate and the spring can play a guiding and limiting role in the sliding of the moving block. The sliding of the moving block can control the rotation angle of the clamp rod. The rotation of the clamp rod can drive the rotation of the bent end, the clamp head and the No. 1 positioning ring. It can be adjusted according to the size of the Achilles tendon affected area of different patients, thereby improving the utilization rate of the device.

[0004] However, the above invention has the following shortcomings: after the Achilles tendon is ruptured, suture surgery must be performed in time. When the existing suturing device is used for suturing, the main frame can only cooperate with the oval forceps to drive the puncture needle to suturing on a parallel plane, and does not take into account the problem of fitting the human body to perform multi-angle suturing and precise positioning.

[0005] Based on this, a reusable minimally invasive Achilles tendon suturing instrument and suturing method are now proposed to solve the above problems. Summary of the Invention

[0006] The purpose of the present invention is to provide a reusable Achilles tendon minimally invasive suturing instrument and suturing method to solve the problems raised in the above background technology.

[0007] The technical solution of the present invention is: a reusable Achilles tendon minimally invasive suturing instrument, comprising a main frame, and a rotating block connected to the main frame via a first angle adjustment unit, wherein the first angle adjustment unit is used to drive the rotating block to rotate around the Achilles tendon of the patient;

[0008] The puncture unit is provided on the rotating block and comprises a plurality of symmetrically arranged puncture sleeves, the puncture sleeves being used to pass through the puncture needle; a rotating ball is provided on the rotating block, the puncture sleeves passing through the rotating ball, and the rotating ball provides a lower rotation point for the puncture sleeves to facilitate angle adjustment; and

[0009] The first adjustment ring is arranged above the rotating block and is sleeved on the outside of the puncture sleeve. The first adjustment ring is connected to the rotating block through an angle adjustment limiting unit. The angle adjustment limiting unit is used to adjust the angle of the puncture sleeve and limit the position of the puncture sleeve.

[0010] Preferably, the first angle adjustment unit includes a threaded rod, one end of the threaded rod is fixedly connected to a rotating knob, the main frame is divided into symmetrically arranged connecting rings, the two connecting rings are connected by a first connecting rod, the connecting ring is provided with a first threaded groove that cooperates with the threaded rod, the rotating block is provided with a through hole that cooperates with the threaded rod, and the rotating block is clamped and connected to the first threaded groove.

[0011] Preferably, the upper end of the rotating block is fixedly connected to the first connecting plate through a plurality of second connecting rods, a plurality of symmetrically arranged first through grooves are provided on the rotating block, a second through groove cooperating with the first through grooves is provided on the first connecting plate, and a horizontally arranged third through groove is provided on the first connecting plate.

[0012] Preferably, the rotating ball is connected to the first through slot via a position limiting unit, and the position limiting unit is used to limit the rotation angle and position of the rotating ball.

[0013] Preferably, the position limiting unit includes a symmetrically arranged second connecting plate fixedly connected to the first through-groove, the second connecting plate having a first groove on its inner side, the side of the rotating ball being connected to a symmetrically arranged movable plate via a first spring for providing elastic force, the side of the movable plate being provided with a first curved surface cooperating with the first groove, the rotating ball being provided with a fourth through-groove for the puncture needle to pass through, the rotating ball also being provided with a fifth through-groove, two symmetrically arranged movable blocks being provided in the fifth through-groove, the upper and lower ends of the movable block being fixedly connected to a first clipping plate, the fifth through-groove being provided with a first clipping groove cooperating with the first clipping plate, the first clipping plate being connected to the first clipping groove via a second spring for providing elastic force, the inner side of the movable block being provided with an inclined surface, the outer side of the movable block being fixedly connected to a first limiting rod, the first limiting rod being provided with a second curved surface, and the second connecting plate being provided with a limiting socket cooperating with the first limiting rod.

[0014] Preferably, the angle adjustment limiting unit includes an adjusting outer ring, which is clamped in the third through-groove, a guide rod is fixedly connected in the third through-groove, a guide groove is provided on the adjusting outer ring to cooperate with the guide rod, an adjusting inner ring is provided in the adjusting outer ring, an adjusting plug rod is fixedly connected to the side of the first adjusting ring, a first socket is provided on the adjusting inner ring, a plurality of second sockets distributed in a circumferential array are provided on the adjusting outer ring, an anti-slip protrusion is provided in the first socket, an anti-slip groove that cooperates with the anti-slip protrusion is provided on the adjusting plug rod, a symmetrically arranged second clamping groove is provided on the adjusting outer ring, a first magnetic plate is provided on the adjusting outer ring, a first clamping protrusion that cooperates with the second clamping groove is fixedly connected to the lower end of the first magnetic plate, a second magnetic plate is fixedly connected to the first connecting plate, the first magnetic plate and the second magnetic plate are magnetically connected, a first limiting protrusion is provided on the side of the first magnetic plate, and the second magnetic plate is provided with an array-distributed third socket that cooperates with the first limiting protrusion.

[0015] Preferably, the adjustment rod is provided with a plurality of fourth sockets in a linear array, a second limiting protrusion is inserted into the fourth socket, the second limiting protrusion is connected to the fourth socket through a third spring for providing elastic force, and a third curved surface is provided on the second limiting protrusion.

[0016] Preferably, the first adjusting ring is provided with a limiting unit for limiting the position of the puncture sleeve, the limiting unit includes a rotating ring, the lower end of the rotating ring is fixedly connected to a threaded rotating cylinder, the first adjusting ring is provided with a second threaded groove that cooperates with the threaded rotating cylinder, the lower end of the rotating ring is provided with a fourth curved surface, and the first adjusting ring is fixedly connected to a plurality of elastic limiting rods distributed in a circumferential array.

[0017] Preferably, the first connecting plate is fixedly connected to a fourth connecting rod via a third connecting rod, the fourth connecting rod is provided with a symmetrically arranged adjusting rod, the adjusting rod is connected to the fourth connecting rod via an adjusting screw, and the end of the adjusting rod is fixedly connected to a fixing protrusion.

[0018] A suturing method for a reusable Achilles tendon minimally invasive suturing instrument, comprising the following steps:

[0019] Step 1: Turn the knob to rotate the threaded rod, which in turn drives the rotating block to move along the direction of the first thread groove, and adjust the rotating block to face the injured part;

[0020] The second spring is compressed, and the first limiting rod is extended outward and inserted into the limiting hole at the corresponding position to adjust the rotation angle of the rotating ball;

[0021] Step 3: After adjusting the angle and extension of the puncture sleeve, rotate the rotating ring to drive the threaded rotating cylinder to move downward along the second thread groove. Under the action of the fourth curved surface, the elastic limiting rod is driven to contact the side wall of the puncture sleeve to limit the puncture sleeve.

[0022] The present invention provides a reusable minimally invasive Achilles tendon suturing device through improvements, which has the following improvements and advantages compared with the prior art:

[0023] The first angle adjustment unit is used to perform a preliminary angle adjustment on the rotating block, so that the rotating block is rotated to the position where the puncture needle is required to puncture, and then the puncture sleeve is inserted into the rotating ball. The puncture sleeve is rotated with the rotating ball as the rotation base point to adjust the puncture angle of the puncture needle. The angle adjustment limiting unit is then used to adjust the rotation angle of the puncture sleeve and limit the position of the puncture sleeve to ensure that the stability of the puncture sleeve is maintained when the puncture needle is puncturing. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 for Figure 1 Schematic diagram of the enlarged structure at A in the middle;

[0027] Figure 3 It is a structural diagram of the main frame of the present invention;

[0028] Figure 4 This is a schematic structural diagram of the connection between the rotating block and the first connecting plate in the present invention;

[0029] Figure 5 It is a partial structural diagram of the position limiting unit and the angle adjustment limiting unit in the present invention;

[0030] Figure 6 for Figure 5 Schematic diagram of the enlarged structure at B in the middle;

[0031] Figure 7 Schematic diagram of the structure of the connection between the inner regulating ring and the outer regulating ring in the present invention

[0032] Figure 8 Schematic diagram of the structure of the first magnetic plate in the present invention;

[0033] Figure 9 This is a schematic cross-sectional view of the connection between the second limiting protrusion and the adjusting rod in the present invention;

[0034] Figure 10 Schematic diagram of the cross-sectional structure of the limiting unit in the present invention;

[0035] Figure 11 This is a schematic diagram of the structure of the connection between the rotating ball and the movable plate in the present invention;

[0036] Figure 12 It is a schematic diagram of the internal cross-sectional structure of the rotating ball in the present invention.

[0037] 1. The piercing sleeve is provided with a screw thread on the first connecting rod and a screw thread on the second connecting rod. 2. The piercing sleeve is provided with a screw thread on the first connecting rod and a screw thread on the second connecting rod. 3. The piercing sleeve is provided with a screw thread on the first connecting rod and a screw thread on the second connecting rod. 4. The piercing sleeve is provided with a screw thread on the first connecting rod and a screw thread on the second connecting rod. 5. The piercing sleeve is provided with a screw thread on the first connecting rod and a screw thread on the second connecting rod. 6. The piercing sleeve is provided with a screw thread on the first connecting rod and a screw thread on the second connecting rod. 7. The piercing sleeve is provided with a screw thread on the first connecting rod and a screw thread on the second connecting rod. 8. The piercing sleeve is provided with a screw thread on the first connecting rod and a screw thread on the second connecting rod. 9. The piercing sleeve is provided with a screw thread on the first connecting rod and a screw thread on the second connecting rod. 10. The piercing sleeve is provided with a screw thread on the first connecting rod and a screw thread on the second connecting rod. 11. The piercing sleeve is provided with a screw thread on the first connecting rod and a screw thread on the second connecting rod. 12. The piercing sleeve is provided with a screw thread on the first connecting rod and a screw thread on the second connecting rod. 13. The piercing sleeve is provided with a screw thread on the first connecting rod and a screw thread on the second connecting rod. 14. The piercing sleeve is provided with a screw thread on the first connecting rod and a screw thread on the second connecting rod. 15. The piercing sleeve is provided with a screw thread on the first connecting rod and a screw thread on the second connecting rod. 16. The piercing sleeve is provided with a screw thread on the first connecting rod and a screw thread on the second connecting rod. 17. The piercing sleeve is provided with a screw thread on the first connecting rod and a screw thread on the second connecting rod. 18. The piercing sleeve is Limiting socket; 32. Adjusting outer ring; 33. Guide rod; 34. Guide groove; 35. Adjusting inner ring; 36. Adjusting plug; 37. First socket; 38. Second socket; 39. Anti-slip protrusion; 40. Anti-slip groove; 41. Second clamping groove; 42. First magnetic plate; 43. First clamping protrusion; 44. Second magnetic plate; 45. First limiting protrusion; 46. Third socket; 47. Fourth socket; 48. Second limiting protrusion; 49. Third spring; 50. Third curved surface; 51. Rotating ring; 52. Threaded rotating cylinder; 53. Second threaded groove; 54. Fourth curved surface; 55. Elastic limiting rod; 56. Third connecting rod; 57. Fourth connecting rod; 58. Adjusting rod; 59. Adjusting screw; 60. Fixing protrusion. DETAILED DESCRIPTION

[0038] The present invention is described in detail below, clearly and completely describing the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0039] like Figures 1 to 12 As shown, an embodiment of the present invention provides a reusable Achilles tendon minimally invasive suturing instrument, comprising a main frame 1 and a rotating block 2, which is connected to the main frame 1 via a first angle adjustment unit, and the first angle adjustment unit is used to drive the rotating block 2 to rotate around the patient's Achilles tendon;

[0040] The puncture unit is provided on the rotating block 2 and includes a plurality of symmetrically arranged puncture sleeves 3; the puncture sleeves 3 are used to pass through the puncture needle; a rotating ball 4 is provided on the rotating block 2, and the puncture sleeves 3 pass through the rotating ball 4, and the rotating ball 4 provides a lower rotation point for the puncture sleeve 3 to adjust the angle; and

[0041] The first adjustment ring 5 is arranged above the rotating block 2 and is sleeved on the outside of the puncture sleeve 3. It is connected to the rotating block 2 through an angle adjustment limiting unit. The angle adjustment limiting unit is used to adjust the angle of the puncture sleeve 3 and limit the position of the puncture sleeve 3.

[0042] When the above device is actually used, the first angle adjustment unit is used to perform a preliminary angle adjustment on the rotating block 2 so that the rotating block 2 is rotated to the position where the puncture needle is required to puncture. The puncture sleeve 3 is then inserted into the rotating ball 4. The puncture sleeve 3 is rotated with the rotating ball 4 as the base point of rotation to adjust the puncture angle of the puncture needle. The angle adjustment limiting unit is then used to adjust the rotation angle of the puncture sleeve 3 and limit the position of the puncture sleeve 3 to ensure that the stability of the puncture sleeve 3 is maintained when the puncture needle is puncturing.

[0043] Combine Figure 3 The first angle adjustment unit includes a threaded rod 6, one end of which is fixedly connected to a rotating knob 7. The main frame 1 is divided into symmetrically arranged connecting rings 8. The two connecting rings 8 are connected by a first connecting rod 9. The connecting ring 8 is provided with a first thread groove 10 that cooperates with the threaded rod 6. The rotating block 2 is provided with a through hole 11 that cooperates with the threaded rod 6. The rotating block 2 is clamped and connected to the first thread groove 10.

[0044] When the first angle adjustment unit is actually used, the threaded rod 6 is rotated by rotating the knob 7, and then the rotating block 2 is moved along the direction of the first thread groove 10, so as to adjust the rotating block 2 to face the affected part of the injured person.

[0045] The upper end of the rotating block 2 is fixedly connected to the first connecting plate 13 through a plurality of second connecting rods 12. The rotating block 2 is provided with a plurality of symmetrically arranged first through grooves 14. The first connecting plate 13 is provided with a second through groove 15 that cooperates with the first through groove 14. The first connecting plate 13 is provided with a horizontally arranged third through groove 16.

[0046] Combine Figure 11 and Figure 12 The rotating ball 4 is connected to the first through slot 14 via a position limiting unit, and the position limiting unit is used to limit the rotation angle and position of the rotating ball 4 .

[0047] The position limiting unit includes a symmetrically arranged second connecting plate 17 fixedly connected to the first through groove 14, a first groove 18 is provided on the inward side of the second connecting plate 17, a symmetrically arranged movable plate 20 is connected to the side of the rotating ball 4 through a first spring 19 for providing elastic force, a first curved surface 21 is provided on the side of the movable plate 20 to cooperate with the first groove 18, a fourth through groove 22 for the puncture needle to pass through is provided on the rotating ball 4, and a fifth through groove 23 is further provided on the rotating ball 4, and two symmetrically arranged movable plates are provided in the fifth through groove 23. The movable block 24 has a first clamping plate 25 fixedly connected to the upper and lower ends of the movable block 24, and a first clamping groove 26 cooperating with the first clamping plate 25 is provided on the fifth through groove 23. The first clamping plate 25 is connected to the first clamping groove 26 by a second spring 27 for providing elastic force. The inner side of the movable block 24 is provided with an inclined surface 28, and the outer side of the movable block 24 is fixedly connected with a first limiting rod 29, and the first limiting rod 29 is provided with a second curved surface 30, and the second connecting plate 17 is provided with a limiting socket 31 cooperating with the first limiting rod 29.

[0048] When the above-mentioned position limiting unit is actually used, after the puncture sleeve 3 is inserted into the rotating ball 4 and the angle of the puncture sleeve 3 is adjusted, the puncture sleeve 3 is continued to be pushed downward, and the puncture sleeve 3 contacts the inclined surface 28, driving the moving block 24 to move outward in the fifth through groove 23, compressing the second spring 27, and the first limiting rod 29 extends outward and is inserted into the limiting socket 31 at the corresponding position to adjust the rotation angle of the rotating ball 4. After the puncture sleeve 3 is pulled out, the rotating ball 4 can be restored to the upward position of the fourth through groove 22 under the elastic force of the first spring 19, waiting for the next puncture operation.

[0049] Combine Figure 6 、 Figure 7 、 Figure 8 and Figure 9The angle adjustment limiting unit includes an adjusting outer ring 32, which is clamped in the third through-groove 16. A guide rod 33 is fixedly connected in the third through-groove 16. A guide groove 34 cooperating with the guide rod 33 is provided on the adjusting outer ring 32. An adjusting inner ring 35 is provided in the adjusting outer ring 32. An adjusting rod 36 is fixedly connected to the side of the first adjusting ring 5. A first plug hole 37 is provided on the adjusting inner ring 35. A plurality of second plug holes 38 distributed in a circumferential array are provided on the adjusting outer ring 32. An anti-slip protrusion 39 is provided in the first plug hole 37. An adjusting rod 36 is provided with a first plug hole 37. There is an anti-slip groove 40 that cooperates with the anti-slip protrusion 39, and a symmetrically arranged second clamping groove 41 is provided on the adjusting outer ring 32. A first magnetic plate 42 is provided on the adjusting outer ring 32, and the lower end of the first magnetic plate 42 is fixedly connected with a first clamping protrusion 43 that cooperates with the second clamping groove 41. A second magnetic plate 44 is fixedly connected to the first connecting plate 13, and the first magnetic plate 42 is magnetically connected to the second magnetic plate 44. A first limiting protrusion 45 is provided on the side of the first magnetic plate 42, and an array-distributed third jack 46 that cooperates with the first limiting protrusion 45 is provided on the second magnetic plate 44.

[0050] The adjusting rod 36 is provided with a plurality of fourth sockets 47 in a linear array, and a second limiting protrusion 48 is inserted into the fourth socket 47. The second limiting protrusion 48 is connected to the fourth socket 47 through a third spring 49 for providing elastic force, and a third curved surface 50 is provided on the second limiting protrusion 48.

[0051] When the above-mentioned angle adjustment limiting unit is actually used, the adjusting outer ring 32 can move in the third through-groove 16. After moving to the appropriate position, the puncture sleeve 3 is held to drive the first magnetic plate 42 to be magnetically connected with the second magnetic plate 44, and the first limiting protrusion 45 is inserted into the third plug hole 46 to limit the position of the adjusting outer ring 32. Then, the adjusting rod 36 is rotated to adjust the position and angle of the puncture sleeve 3. After finding the appropriate angle, the adjusting rod 36 is driven to be inserted into the second plug hole 38 at the corresponding position, and the third spring 49 is compressed to drive the second limiting protrusion 48 to move. Until the required angle is adjusted, the second limiting protrusion 48 extends from the fourth plug hole 47 to limit the position of the adjusting inner ring 35 and the adjusting outer ring 32. The first adjusting ring 5 limits the position of the puncture sleeve 3 to facilitate the puncture operation.

[0052] Combine Figure 10The first adjusting ring 5 is provided with a limiting unit for limiting the position of the puncture sleeve 3, and the limiting unit includes a rotating ring 51, and the lower end of the rotating ring 51 is fixedly connected to a threaded rotating cylinder 52, and the first adjusting ring 5 is provided with a second threaded groove 53 that cooperates with the threaded rotating cylinder 52, and the lower end of the rotating ring 51 is provided with a fourth curved surface 54, and the first adjusting ring 5 is fixedly connected to a plurality of elastic limiting rods 55 distributed in a circumferential array.

[0053] When the above-mentioned limiting unit is actually used, after adjusting the angle and extension amount of the puncture sleeve 3, the rotating ring 51 is rotated to drive the threaded rotating cylinder 52 to move downward along the second thread groove 53. Under the action of the fourth curved surface 54, the elastic limiting rod 55 is driven to contact the side wall of the puncture sleeve 3, limiting the puncture sleeve 3 and ensuring the stability of the puncture sleeve 3.

[0054] In order to limit the angle and position of the oval forceps and facilitate puncture, the first connecting plate 13 is fixedly connected to the fourth connecting rod 57 through the third connecting rod 56, and the fourth connecting rod 57 is provided with a symmetrically arranged adjusting rod 58. The adjusting rod 58 is connected to the fourth connecting rod 57 through an adjusting screw 59, and the end of the adjusting rod 58 is fixedly connected to a fixing protrusion 60.

[0055] The length of the adjusting rod 58 extending out of the fourth connecting rod 57 is adjusted by adjusting the screw 59, and the opening size of the oval forceps clamped by the fixing protrusion 60 is adjusted to meet different usage requirements.

[0056] A suturing method for a reusable Achilles tendon minimally invasive suturing instrument, comprising the following steps:

[0057] Step 1: Turn the knob 7 to rotate the threaded rod 6, which in turn drives the rotating block 2 to move along the direction of the first thread groove 10, and adjust the rotating block 2 to face the injured part;

[0058] Step 2: The outer ring 32 is adjusted to be able to move in the third through-groove 16. After moving to the appropriate position, the puncture sleeve 3 is held to drive the first magnetic plate 42 to be magnetically connected with the second magnetic plate 44. The first limiting protrusion 45 is inserted into the third plug hole 46 to limit the position of the outer ring 32. Then, the adjusting rod 36 is rotated to adjust the position and angle of the puncture sleeve 3. After finding the appropriate angle, the adjusting rod 36 is driven to be inserted into the second plug hole 38 at the corresponding position, and the third spring 49 is compressed to drive the second limiting protrusion 48 to move until the required angle is adjusted. The second limiting protrusion 48 extends from the fourth insertion hole 47 to limit the positions of the inner adjustment ring 35 and the outer adjustment ring 32. The first adjusting ring 5 limits the position of the puncture sleeve 3. After the puncture sleeve 3 is inserted into the rotating ball 4 and the angle of the puncture sleeve 3 is adjusted, the puncture sleeve 3 is pushed downward. The puncture sleeve 3 contacts the inclined surface 28, driving the moving block 24 to move outward in the fifth through groove 23, compressing the second spring 27. The first limiting rod 29 extends outward and is inserted into the limiting insertion hole 31 at the corresponding position to adjust the rotation angle of the rotating ball 4;

[0059] Step 3: After adjusting the angle and extension of the puncture sleeve 3, rotate the rotating ring 51 to drive the threaded rotating cylinder 52 to move downward along the second thread groove 53. Under the action of the fourth curved surface 54, the elastic limiting rod 55 is driven to contact the side wall of the puncture sleeve 3 to limit the puncture sleeve 3.

[0060] Working principle: after the puncture sleeve 3 is inserted into the rotating ball 4 and the angle of the puncture sleeve 3 is adjusted, the puncture sleeve 3 is continued to be pushed downward, and the puncture sleeve 3 contacts the inclined surface 28, driving the moving block 24 to move outward in the fifth through groove 23, compressing the second spring 27, and the first limiting rod 29 extends outward and is inserted into the limiting plug hole 31 at the corresponding position to adjust the rotation angle of the rotating ball 4. After the puncture sleeve 3 is pulled out, the rotating ball 4 can be restored to the upward position of the fourth through groove 22 under the elastic force of the first spring 19, waiting for the next puncture operation; the adjusting outer ring 32 can move in the third through groove 16. After moving to the appropriate position, the puncture sleeve 3 is held to drive the first magnetic plate 42 to be magnetically connected with the second magnetic plate 44, and the first limiting protrusion 45 is inserted into the third plug hole 46 to limit the position of the adjusting outer ring 32, and then the adjusting plug rod 36 is rotated to adjust the position and angle of the puncture sleeve 3. After finding the appropriate angle, the adjusting rod 36 is driven to be inserted into the second insertion hole 38 at the corresponding position, and the third spring 49 is compressed to drive the second limiting protrusion 48 to move. Until the required angle is adjusted, the second limiting protrusion 48 extends from the fourth insertion hole 47 to limit the positions of the adjusting inner ring 35 and the adjusting outer ring 32, and the first adjusting ring 5 limits the position of the puncture sleeve 3 to facilitate the puncture operation; after the angle and extension amount of the puncture sleeve 3 are adjusted, the rotating ring 51 is rotated to drive the threaded rotating cylinder 52 to move downward along the second thread groove 53. Under the action of the fourth curved surface 54, the elastic limiting rod 55 is driven to contact the side wall of the puncture sleeve 3, limiting the puncture sleeve 3 to ensure the stability of the puncture sleeve 3; the length of the adjusting rod 58 extending out of the fourth connecting rod 57 is adjusted by adjusting the screw 59, and the opening size of the oval forceps clamped by the fixed protrusion 60 is adjusted to meet different usage requirements.

[0061] The above description is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is to be construed in the widest possible manner consistent with the principles and novel features disclosed herein.

Claims

1. A reusable Achilles tendon minimally invasive suturing instrument, comprising a main frame (1), characterized in that: It also includes a rotating block (2), which is connected to the main frame (1) via a first angle adjustment unit, and the first angle adjustment unit is used to drive the rotating block (2) to rotate around the patient's Achilles tendon; A puncture unit is provided on the rotating block (2); it comprises a plurality of symmetrically arranged puncture sleeves (3); the puncture sleeves (3) are used to pass through a puncture needle; a rotating ball (4) is provided on the rotating block (2); the puncture sleeve (3) passes through the rotating ball (4); the rotating ball (4) provides a lower rotation point for the puncture sleeve (3) to adjust the angle; and A first adjustment ring (5) is arranged above the rotating block (2), is sleeved on the outside of the puncture sleeve (3), and is connected to the rotating block (2) via an angle adjustment limiting unit. The angle adjustment limiting unit is used to adjust the angle of the puncture sleeve (3) and to limit the position of the puncture sleeve (3).

2. The reusable minimally invasive Achilles tendon suturing instrument according to claim 1, characterized in that: The first angle adjustment unit comprises a threaded rod (6), one end of which is fixedly connected to a rotating knob (7), the main frame (1) is divided into symmetrically arranged connecting rings (8), the two connecting rings (8) are connected via a first connecting rod (9), the connecting ring (8) is provided with a first thread groove (10) cooperating with the threaded rod (6), the rotating block (2) is provided with a through hole (11) cooperating with the threaded rod (6), and the rotating block (2) is snap-connected to the first thread groove (10).

3. The reusable minimally invasive Achilles tendon suturing instrument according to claim 2, characterized in that: The upper end of the rotating block (2) is fixedly connected to a first connecting plate (13) via a plurality of second connecting rods (12); a plurality of symmetrically arranged first through slots (14) are provided on the rotating block (2); a second through slot (15) cooperating with the first through slot (14) is provided on the first connecting plate (13); and a horizontally arranged third through slot (16) is provided on the first connecting plate (13).

4. The reusable minimally invasive Achilles tendon suturing instrument according to claim 3, characterized in that: The rotating ball (4) is connected to the first through slot (14) via a position limiting unit, and the position limiting unit is used to limit the rotation angle and position of the rotating ball (4).

5. The reusable minimally invasive Achilles tendon suturing instrument according to claim 4, characterized in that: The position limiting unit includes a symmetrically arranged second connecting plate (17) fixedly connected to the first through groove (14), a first groove (18) is provided on the inner side of the second connecting plate (17), the side of the rotating ball (4) is connected to a symmetrically arranged moving plate (20) through a first spring (19) for providing elastic force, the side of the moving plate (20) is provided with a first curved surface (21) that cooperates with the first groove (18), the rotating ball (4) is provided with a fourth through groove (22) for the puncture needle to pass through, the rotating ball (4) is also provided with a fifth through groove (23), and two symmetrically arranged moving blocks ( 24), the upper and lower ends of the moving block (24) are fixedly connected with a first snap-in plate (25), the fifth through slot (23) is provided with a first snap-in slot (26) that cooperates with the first snap-in plate (25), the first snap-in plate (25) is connected to the first snap-in slot (26) through a second spring (27) for providing elastic force, the inward side of the moving block (24) is provided with an inclined surface (28), the outward side of the moving block (24) is fixedly connected with a first limiting rod (29), the first limiting rod (29) is provided with a second curved surface (30), and the second connecting plate (17) is provided with a limiting socket (31) that cooperates with the first limiting rod (29).

6. The reusable minimally invasive Achilles tendon suturing instrument according to claim 5, characterized in that: The angle adjustment limiting unit comprises an adjustment outer ring (32), the adjustment outer ring (32) is clamped in the third through groove (16), a guide rod (33) is fixedly connected in the third through groove (16), a guide groove (34) cooperating with the guide rod (33) is provided on the adjustment outer ring (32), an adjustment inner ring (35) is provided in the adjustment outer ring (32), an adjustment plug rod (36) is fixedly connected to the side of the first adjustment ring (5), a first jack (37) is provided on the adjustment inner ring (35), a plurality of second jacks (38) distributed in a circumferential array are provided on the adjustment outer ring (32), an anti-slip protrusion (39) is provided in the first jack (37), and an anti-slip protrusion (39) is provided on the adjustment plug rod (36). There is an anti-slip groove (40) that cooperates with the anti-slip protrusion (39), a symmetrically arranged second clamping groove (41) is provided on the adjusting outer ring (32), a first magnetic plate (42) is provided on the adjusting outer ring (32), the lower end of the first magnetic plate (42) is fixedly connected with a first clamping protrusion (43) that cooperates with the second clamping groove (41), a second magnetic plate (44) is fixedly connected to the first connecting plate (13), the first magnetic plate (42) and the second magnetic plate (44) are magnetically connected, a first limiting protrusion (45) is provided on the side of the first magnetic plate (42), and an array of third jacks (46) that cooperate with the first limiting protrusion (45) are provided on the second magnetic plate (44).

7. The reusable minimally invasive Achilles tendon suturing instrument according to claim 6, characterized in that: The adjusting rod (36) is provided with a plurality of fourth jacks (47) in a linear array, a second limiting protrusion (48) is inserted into the fourth jack (47), the second limiting protrusion (48) is connected to the fourth jack (47) via a third spring (49) for providing elastic force, and a third curved surface (50) is provided on the second limiting protrusion (48).

8. The reusable minimally invasive Achilles tendon suturing instrument according to claim 7, characterized in that: The first adjusting ring (5) is provided with a limiting unit for limiting the position of the puncture sleeve (3), and the limiting unit includes a rotating ring (51), the lower end of the rotating ring (51) is fixedly connected to a threaded rotating cylinder (52), the first adjusting ring (5) is provided with a second thread groove (53) cooperating with the threaded rotating cylinder (52), the lower end of the rotating ring (51) is provided with a fourth curved surface (54), and the first adjusting ring (5) is fixedly connected to a plurality of elastic limiting rods (55) distributed in a circumferential array.

9. The reusable minimally invasive Achilles tendon suturing instrument according to claim 8, characterized in that: A fourth connecting rod (57) is fixedly connected to the first connecting plate (13) via a third connecting rod (56); a symmetrically arranged adjusting rod (58) is provided on the fourth connecting rod (57); the adjusting rod (58) is connected to the fourth connecting rod (57) via an adjusting screw (59); and a fixing protrusion (60) is fixedly connected to the end of the adjusting rod (58).

10. A suturing method for a reusable minimally invasive Achilles tendon suturing device, characterized by: The reusable minimally invasive Achilles tendon suturing device according to claim 9 comprises the following steps: Step 1: rotating the knob (7) to drive the threaded rod (6) to rotate, thereby driving the rotating block (2) to move along the direction of the first thread groove (10), and adjusting the rotating block (2) to face the injured part; Step 2: The outer ring (32) is adjusted to be movable in the third through-groove (16). After it is moved to a suitable position, the puncture sleeve (3) is held to drive the first magnetic plate (42) to be magnetically connected with the second magnetic plate (44). The first limiting protrusion (45) is inserted into the third plug hole (46) to limit the position of the outer ring (32). Then, the adjusting rod (36) is rotated to adjust the position and angle of the puncture sleeve (3). After finding a suitable angle, the adjusting rod (36) is driven to be inserted into the second plug hole (38) at the corresponding position, and the third spring (49) is compressed to drive the second limiting protrusion (48) to move until the required angle is adjusted. The protrusion (48) extends from the fourth insertion hole (47) to limit the position of the adjustment inner ring (35) and the adjustment outer ring (32). The first adjustment ring (5) limits the position of the puncture sleeve (3). After the puncture sleeve (3) is inserted into the rotating ball (4) and the angle of the puncture sleeve (3) is adjusted, the puncture sleeve (3) is pushed downward. The puncture sleeve (3) contacts the inclined surface (28), driving the moving block (24) to move outward in the fifth through groove (23), compressing the second spring (27), and the first limiting rod (29) extends outward and is inserted into the limiting insertion hole (31) at the corresponding position to adjust the rotation angle of the rotating ball (4). Step 3: After adjusting the angle and extension of the puncture sleeve (3), rotate the rotating ring (51) to drive the threaded rotating cylinder (52) to move downward along the second thread groove (53). Under the action of the fourth curved surface (54), the elastic limiting rod (55) is driven to contact the side wall of the puncture sleeve (3) to limit the puncture sleeve (3).

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