Coracoid osteotomy, drilling, wire passing system

Abstract

The application discloses a coracoid bone cutting, drilling and wire passing system, which comprises a coracoid bone cutting positioner, a box type drilling guider and a scapuloglenoid stable anchor guider, a guide needle is punched to fix the relative position of the coracoid bone cutting positioner and the coracoid bone, then a wire saw, a swing saw or other tools are used to cut the bone along the bone cutting guide plane on the coracoid bone cutting positioner, the accuracy of cutting the coracoid bone is improved, the box type drilling guider serves as an auxiliary tool for drilling the bone cutting block and helps to improve the accuracy of drilling, and the scapuloglenoid stable anchor guider serves as an auxiliary tool for punching an anchor hole and positions the tool for punching the anchor hole, so that the position accuracy of the anchor hole is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of medical devices, in particular to a coracoid bone cutting, drilling and wire passing system. BACKGROUND

[0002] Recurrent anterior dislocation of the shoulder joint is a common sports injury that can cause shoulder pain and limited mobility, seriously affecting daily life and sports level. For recurrent anterior dislocation of the shoulder joint, especially recurrent anterior dislocation with obvious bone defect, Latarjet surgery is a treatment to improve the patient's return to sports rate, but there are complications such as impingement of the transplanted bone and the surrounding tissue, iatrogenic coracoclavicular arch and damage to the pectoralis minor muscle. The Lutarjet procedure in the modified Latarjet procedure uses partial coracoid bone cutting, which preserves the integrity of the coracoclavicular ligament and the pectoralis minor muscle. At the same time, the coracoid bone cutting shape is a triangular structure, which is easy to pass through the subscapularis muscle, reduces the damage to the subscapularis muscle, and is easier to operate. However, relying only on the experience of the operator and various measurements during the operation can cause corresponding surgical damage to the patient, increase the operation time, and the size of the cut coracoid bone is not accurate, and bone splitting and other complications may occur. SUMMARY

[0003] In view of the deficiencies of the prior art, the present application provides a coracoid bone cutting, drilling and wire passing system, which improves the accuracy of coracoid bone cutting, drilling and fixation, and reduces the dependence on the experience of the operator.

[0004] To achieve the above-mentioned purpose, the present application is realized by the following technical scheme:

[0005] The present application provides a coracoid bone cutting, drilling and wire passing system, which comprises a coracoid bone cutting positioner, a box-type drilling guide and a scapulohumeral stable anchor guide.

[0006] The coracoid bone cutting positioner comprises a positioner body and a handle, the positioner body has a channel for accommodating the coracoid process, a vertical bone cutting guide plane is arranged above the channel, a guide pin hole is arranged on the positioner body, and the handle is connected to the positioner body.

[0007] The box-type drilling guide comprises a base and a clamping plate, the base comprises a bottom plate, a third side plate, a fourth side plate and a clamping plate, the third side plate and the fourth side plate are opposite to each other and both are connected to the bottom plate, the clamping plate is movably arranged between the third side plate and the fourth side plate, and the clamping plate and the fourth side plate cooperate to clamp the bone cutting block in the space enclosed by the clamping plate, the fourth side plate and the bottom plate; the box-type drilling guide is provided with a drilling guide hole corresponding to the position of the bone cutting block.

[0008] The shoulder glenoid stable anchor guide includes a limiting slide rod and an anchor guide sleeve, and the limiting slide rod and the anchor guide sleeve are connected by a sliding rod. The limiting slide rod has a first state in which the front end of the limiting slide rod protrudes relative to the front end of the anchor guide sleeve and a second state in which the front end of the limiting slide rod is retracted relative to the front end of the anchor guide sleeve. The bottom surface of the anchor guide sleeve is provided with an anchor guide groove, and the anchor guide groove penetrates through the front and rear ends of the anchor guide sleeve.

[0009] As a preferred solution, the locator body of the coracoid bone cutting locator includes a top plate, a first side plate, a second side plate, and a positioning plate. The first side plate and the second side plate are parallel to each other and have upper ends connected to the top plate. The first side plate and the second side plate form a channel for accommodating the coracoid bone therebetween. The top plate has a positioning plate extending upward from the edge thereof. The first side plate and the second side plate are located on the same side of the positioning plate. The side of the positioning plate opposite to the first side plate and the second side plate is located above the entrance of the channel and serves as a bone cutting guide plane. The angle A formed between the bone cutting guide plane and the depth direction of the channel is 30° to 90°.

[0010] The top surface of the top plate is upwardly convex to form a column. A guide needle hole penetrating through the top plate is provided on the column. A plurality of probe holes located on the same straight line are provided on the top plate. The distance L2 between the center of the guide needle hole and the probe hole is 3 mm to 8 mm. A handle is connected to the top plate.

[0011] As another preferred solution, the coracoid bone cutting locator includes a sliding block. The locator body is a vertical plate. The bottom of the locator body is provided with a channel for accommodating the coracoid bone. A handle is mounted on the sliding block. A vertical guide needle hole is provided on the sliding block. The sliding block is connected to one side of the locator body and the horizontal position thereof is adjustable. The side of the locator body opposite to the handle serves as a bone cutting guide plane.

[0012] Further, a horizontal T-shaped sliding groove is provided on the locator body. A T-shaped boss is provided on the sliding block. The T-shaped boss is inserted into the T-shaped sliding groove. A threaded hole is provided on the sliding block. A Kirsch screw is installed in the threaded hole. A plurality of positioning holes are provided on the locator body along the length direction of the T-shaped sliding groove. By pulling the sliding block, the tip of the Kirsch screw can be inserted into different positioning holes, thereby fixing the sliding block at different positions.

[0013] Further, the box type drilling guide further includes a spring, a connecting pin, and an end cap. A spring mounting hole is provided on the third side plate. The spring is located in the spring mounting hole. The axial direction of the spring is along the left-right direction. One end of the connecting pin is connected to the clamping plate, and the other end of the connecting pin is inserted into the spring mounting hole. The end of the spring mounting hole away from the connecting pin is provided with an internal thread. The outer peripheral surface of the end cap is provided with an external thread. The end cap is installed in the spring mounting hole through the cooperation of the external thread and the internal thread. The two ends of the spring are respectively abutted against the end cap and the connecting pin.

[0014] Furthermore, protrusions extend downwards from both the front and rear ends of the bottom of the clamping plate, and guide grooves extending in the left and right direction are provided on the base corresponding to each protrusion position, with the protrusions slidably disposed in the guide grooves.

[0015] Furthermore, a first horizontal connecting part extends from the upper end of the clamping plate toward the fourth side plate, and a first column extends upward from the first horizontal connecting part. The first column has a vertical first drilling guide hole, which penetrates the bottom surface of the first horizontal connecting part. The diameter of the first drilling guide hole is 2.5 mm, the distance between the center of the first drilling guide hole and the clamping plate is 5 mm, and the distance between the bottom surface of the first horizontal connecting part and the base plate is 10 mm.

[0016] The upper end of the fourth side plate extends towards the side of the clamping plate to form a second horizontal connecting part. The second horizontal connecting part extends upward to form a second column. The second column has a vertical second drilling guide hole that penetrates the bottom surface of the second horizontal connecting part. The diameter of the second drilling guide hole is 2.5 mm. The distance between the center of the second drilling guide hole and the fourth side plate is 5 mm. The distance between the bottom surface of the second horizontal connecting part and the base plate is 10 mm.

[0017] Furthermore, the base plate, the third side plate, and the fourth side plate are provided with corresponding grooves with a width of 1.5mm. The grooves extend in the front-to-back direction, and the center height of the grooves is 3mm away from the base plate.

[0018] Furthermore, the limiting slide bar includes a toggle part, a limiting stop plate, a kimming screw, and a T-shaped boss. The T-shaped boss is connected to the bottom of the limiting stop plate, and the front end of the limiting stop plate protrudes relative to the front end of the T-shaped boss. Both the limiting stop plate and the T-shaped boss are connected to the toggle part. The top surface of the toggle part is provided with anti-slip texture, and the toggle part is provided with a vertical threaded hole. The kimming screw is installed in the threaded hole.

[0019] The top surface of the anchor guide sleeve is provided with a T-shaped groove that matches the T-shaped boss. The top surface of the anchor guide sleeve is provided with a first stop hole and a second stop hole. The second stop hole is located behind the first stop hole, and the front-to-back distance between the two stop holes is 10mm.

[0020] By moving the limiting slide bar along the T-shaped slide groove with the actuating part, the tip of the Jimi screw can be inserted into different stop holes to position the limiting slide bar; when the Jimi screw is inserted into the first stop hole, the front end of the limiting stop plate protrudes relative to the front end of the anchor guide sleeve; when the Jimi screw is inserted into the second stop hole, the front end of the limiting stop plate retracts relative to the front end of the anchor guide sleeve.

[0021] The front end of the anchor guide sleeve is tapered, and the top of the tapered sleeve is rounded.

[0022] The coracoid process osteotomy, drilling, and suture system provided by this invention has the following advantages:

[0023] 1. Using a coracoid osteotomy locator, insert a guide pin along the guide pin hole to fix the relative position of the coracoid osteotomy locator and the coracoid process. Then, use tools such as a wire saw or oscillating saw to perform osteotomy along the osteotomy guide plane on the coracoid osteotomy locator to improve the accuracy of cutting the coracoid process.

[0024] 2. Using a box-type drilling guide, after the coracoid process is cut off, push open the spring clips and place it into the box-type drilling guide. Drill holes in the coracoid process osteotomy block according to the drilling guide hole position set in the box-type drilling guide to quickly and accurately obtain the required bone holes.

[0025] 3. A glenoid stabilizing anchor guide is used. During the operation, a sliding limiting rod is pushed out to position it at the edge of the glenoid defect. Then, anchor holes are drilled along the anchor guide sleeve. The glenoid stabilizing anchor guide serves as an auxiliary tool for drilling anchor holes, positioning the tool for drilling anchor holes and helping to improve the positional accuracy of the anchor holes.

[0026] 4. The coracoid osteotomy, drilling, and suture passing system provided by this invention is a special instrument for precise osteotomy, drilling, and suture passing in the LUtarjet procedure. It can precisely perform osteotomy, drilling, and suture passing while saving surgical time and reducing complications. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the coracoid process osteotomy, drilling, and suture system according to Embodiment 1 of the present invention;

[0028] Figure 2 Figure 1 A schematic diagram of the coracoid osteotomy locator;

[0029] Figure 3 yes Figure 1 View of the coracoid osteotomy locator after removing the handle;

[0030] Figure 4 yes Figure 3 Another view of the coracoid osteotomy locator;

[0031] Figure 5 This is a schematic diagram of the use of the coracoid osteotomy locator in Example 1;

[0032] Figure 6 This is a top view of the coracoid osteotomy locator of Embodiment 1;

[0033] Figure 7 This is a bottom view of the coracoid osteotomy locator of Embodiment 1;

[0034] Figure 8 This is a schematic diagram of a box-type drilling guide;

[0035] Figure 9 This is an exploded view of a box-type drilling guide;

[0036] Figure 10 This is a cross-sectional view of a box-type drilling guide;

[0037] Figure 11 This is an exploded view of the glenoid stabilizing anchor guide;

[0038] Figure 12 This is an exploded view of the glenoid stabilizing anchor guide from another angle;

[0039] Figure 13 This is a schematic diagram showing the use of the glenoid stabilizing anchor guide in conjunction with the anchor hole drilling tool;

[0040] Figure 14 This is a schematic diagram of the coracoid osteotomy locator in Embodiment 2;

[0041] Figure 15 This is a schematic diagram of the handle of the coracoid osteotomy locator in Embodiment 2;

[0042] Figure 16 This is a view of the coracoid osteotomy locator after the handle has been removed, as described in Embodiment 2.

[0043] Figure 17 yes Figure 16 Another view of the coracoid osteotomy locator;

[0044] Figure 18 This is a schematic diagram of the coracoid osteotomy locator in Example 3;

[0045] Figure 19 This is an exploded view of the coracoid osteotomy locator in Example 3;

[0046] Figure 20 yes Figure 19 Another angle view of the coracoid osteotomy locator; Detailed Implementation

[0047] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0048] Example 1

[0049] like Figures 1 to 13This embodiment discloses a coracoid process osteotomy, drilling, and suture system, including a coracoid process osteotomy locator 100, a box-type drilling guide 200, and a glenoid stabilizing anchor guide 300. The coracoid process osteotomy locator includes a locator body and a handle. The locator body has a channel 10 for accommodating the coracoid process, and a vertical osteotomy guide plane is provided above the channel 10. The locator body has a guide pin hole, and the handle is connected to the locator body. The box-type drilling guide includes a base and a clamping plate. The base includes a bottom plate, a third side plate, a fourth side plate, and a clamping plate. The third and fourth side plates are opposite each other and both are connected to the bottom plate. The clamping plate is movably disposed between the third and fourth side plates. The clamping plate and the fourth side plate cooperate to clamp the osteotomy block placed in the space enclosed by the clamping plate, the fourth side plate, and the bottom plate. The box-type drilling guide has a drilling guide hole corresponding to the position of the osteotomy block. A glenoid stabilizing anchor guide includes a limiting slide rod and an anchor guide sleeve. The limiting slide rod and the anchor guide sleeve are connected by a sliding rod. The limiting slide rod has a first state in which its front end protrudes relative to the front end of the anchor guide sleeve and a second state in which its front end retracts relative to the front end of the anchor guide sleeve. The bottom surface of the anchor guide sleeve is provided with an anchor guide groove, which extends through the front and rear ends of the anchor guide sleeve.

[0050] A coracoid osteotomy locator is used, with a guide pin inserted along the guide pin hole to fix the relative position of the locator and the coracoid process. Then, a wire saw or oscillating saw is used to perform osteotomy along the osteotomy guide plane on the locator, improving the precision of the coracoid process cutting. A box-type drill guide is used; after the coracoid process is cut, the spring clip is pushed open and placed into the box-type drill guide. Holes are drilled into the coracoid osteotomy block according to the drill guide hole positions set in the box-type drill guide, allowing for quick and precise obtaining of the required bone holes. The box-type drill guide also has slots on its side for Kirschner wire drilling. A glenoid stabilizing anchor guide is used; during the operation, a conical insert is used into the joint, and a sliding limiting rod is pushed out to position it at the edge of the glenoid defect. Anchor holes are then drilled along the anchor guide sleeve.

[0051] like Figures 2 to 7 The coracoid osteotomy locator includes a locator body and a handle. The locator body includes a top plate 1, a first side plate 2, a second side plate 3, and a positioning plate 4. The first side plate 2 and the second side plate 3 are parallel to each other and their upper ends are connected to the top plate 1. A channel 10 for accommodating the coracoid process is formed between the first side plate 2 and the second side plate 3. The positioning plate 4 extends upward from the edge of the top plate 1. The first side plate 2 and the second side plate 3 are located on the same side of the positioning plate 4. The side of the positioning plate 4 facing away from the first side plate 2 and the second side plate 3 is located above the entrance of the channel 10 as an osteotomy guide plane 6. The angle A formed by the osteotomy guide plane 6 and the depth direction of the channel 10 is 30° to 90°. The handle 5 is connected to the top plate 1. Specifically, the handle 5 is connected to the top of the top plate 1 or to the side of the top plate 1 at a position opposite to the positioning plate 4.

[0052] Preferably, the top surface of the top plate 1 protrudes upward to form a column 7. The column 7 has a guide pin hole 8 penetrating the top plate 1. After the coracoid osteotomy locator is placed on the coracoid process, a guide pin is inserted along the guide pin hole 8 to fix the relative position of the coracoid osteotomy locator and the coracoid process. The top plate 1 has multiple probe holes 9 located in a straight line. Preferably, the number of probe holes 9 is 3 to 5, and the distance L2 between the center of the guide pin hole 8 and the probe hole is 3 mm to 8 mm. Preferably, the length L1 of the first side plate 2 is 15 mm to 25 mm, and the distance L3 between the first side plate 2 and the second side plate 3 is 10 mm to 20 mm. Preferably, the column 7 is connected to the positioning plate 4, thereby increasing the strength of the column 7 and reducing the risk of breakage.

[0053] Depending on actual needs, the angle at which the handle 5 connects to the top plate 1 can be set in various ways, and the appropriate angle can be selected based on individual differences in the coracoid process during surgery. In this embodiment, the handle 5 is linear, and the top plate 1 has an insertion hole 10 on one side (the probe hole 9 is located between the insertion hole 10 and the guide needle hole 8). One end of the handle 5 is inserted into the insertion hole 10, and the handle 5 and the top plate 1 are detachably connected by a plug-in method. In other embodiments, the handle 5 can also be of other shapes. The coracoid osteotomy locator described in this embodiment is divided into left-handed and right-handed versions. The coracoid osteotomy locator shown in the figure is suitable for right-handed users. The left-handed and right-handed coracoid osteotomy locators are symmetrical.

[0054] Operation procedure of the coracoid process osteotomy locator:

[0055] After the path is cleared, the coracoid osteotomy locator is placed, and the control handle 5 is used to adjust the relative position of the coracoid osteotomy locator and the coracoid process. The bottom surface of the top plate 1 of the coracoid osteotomy locator serves as the upper reference surface, which is in contact with the coracoid process when the locator is placed. The opposite surfaces of the first side plate 2 and the second side plate 3 serve as the left and right reference surfaces, respectively, which are in contact with the coracoid process when the locator is placed. At this time, the coracoid osteotomy locator still has two degrees of freedom that are not restricted, namely, along... Figure 5 Translation in the direction of the arrow and rotation around the arrow axis. Adjust the position and orientation of the coracoid osteotomy locator, use a Kirschner wire through the probe hole 9 to detect the position of the coracoid tip, after the coracoid osteotomy locator is in place, insert the guide pin along the guide pin hole 8 to fix the relative position of the coracoid osteotomy locator and the coracoid process, and then use tools such as a wire saw or oscillating saw to perform osteotomy along the osteotomy guide plane 6 on the coracoid osteotomy locator.

[0056] like Figures 8 to 10The box-type drilling guide includes a base 41 and a clamping plate 42. The base 41 includes a base plate 43, a third side plate 44, a fourth side plate 45, a spring 46, a connecting pin 47, and an end cap 48. The third side plate 44 and the fourth side plate 45 are opposite each other and both are connected to the base plate 43. The clamping plate 42 is movably disposed between the third side plate 44 and the fourth side plate 45. The clamping plate 42 and the fourth side plate 45 cooperate to clamp the osteotomy block (the bone block cut off from the coracoid process) placed in the space enclosed by the clamping plate 42, the fourth side plate 45, and the base plate 43.

[0057] In the specific structure, the third side plate 44 is provided with a spring mounting hole 49, and the spring 46 is located in the spring mounting hole 49. The axial direction of the spring 46 is along the left and right direction. One end of the connecting pin 47 is connected to the clamping plate 42, and the other end is inserted into the spring mounting hole 49. The end of the spring mounting hole 49 away from the connecting pin 47 is provided with an internal thread. The outer circumferential surface of the end cover 48 is provided with an external thread. The end cover 48 is installed in the spring mounting hole 49 through the cooperation of the external thread and the internal thread. The two ends of the spring 46 abut against the end cover 48 and the connecting pin 47 respectively.

[0058] In this embodiment, the clamping plate 42 is connected to the connecting pin 47 via a T-slot. In other embodiments, the two can be connected by welding, threaded connection, screw connection, or other methods.

[0059] Preferably, the bottom of the clamping plate 42 has protrusions 410 extending downward from both the front and rear ends. The base 41 has guide grooves 411 extending in the left and right direction corresponding to each protrusion 410 position. The protrusions 410 are slidably disposed in the guide grooves 411. The guide grooves 411 restrict the movement trajectory of the protrusions 410, which is conducive to the stable movement of the clamping block.

[0060] A first horizontal connecting portion 412 extends from the upper end of the clamping plate 42 toward the fourth side plate 45. A first column 413 extends upward from the first horizontal connecting portion 412. The first column 413 has a vertical first drilling guide hole 414 that penetrates the bottom surface of the first horizontal connecting portion 412. The diameter of the first drilling guide hole 414 is 2.5 mm, and the distance between the center of the first drilling guide hole 414 and the clamping plate 42 is 5 mm. The distance between the bottom surface of the first horizontal connecting portion 412 and the base plate 43 is 10 mm.

[0061] A second horizontal connecting portion 415 extends from the upper end of the fourth side plate 45 toward the clamping plate 42. A second column 416 extends upward from the second horizontal connecting portion 415. The second column 416 has a vertical second drilling guide hole 417 that penetrates the bottom surface of the second horizontal connecting portion 415. The diameter of the second drilling guide hole 417 is 2.5 mm, and the distance between the center of the second drilling guide hole 417 and the fourth side plate 45 is 5 mm. The distance between the bottom surface of the second horizontal connecting portion 415 and the base plate 43 is 10 mm.

[0062] Since the human body is a mirror image, and osteotomy blocks are also divided into left and right (mirror images), a first drilling guide hole 414 and a second drilling guide hole 417 are set to accommodate different osteotomy blocks.

[0063] Using a box-type drilling guide, after the coracoid process is cut off, push open the clamp (push the clamp block away from the fourth side plate 45), and place it into the box-type drilling guide (place the osteotomy piece cut off from the coracoid process between the clamp block and the fourth side plate 45). Drill holes in the coracoid osteotomy piece according to the drilling guide hole positions set in the box-type drilling guide (drill holes in the osteotomy piece from the first drilling guide hole 414 or the second drilling guide hole 417 position), and the required bone holes can be obtained quickly and accurately.

[0064] The base plate 43, the third side plate 44, and the fourth side plate 45 are provided with corresponding grooves 418 with a width of 1.5mm. The grooves 418 extend in the front-to-back direction. The center height of the grooves 418 is 3mm away from the base plate 43. The grooves 418 are used for drilling holes with Kirschner wires (for threading).

[0065] like Figures 11 to 13 The glenoid stabilizer anchor guide includes a limiting slide bar 61, an anchor guide sleeve 62, and a kimmel screw 37. The limiting slide bar 61 has a first state in which the front end protrudes relative to the front end of the anchor guide sleeve 62 and a second state in which the front end of the limiting slide bar 61 retracts relative to the front end of the anchor guide sleeve 62.

[0066] The limiting slide bar 61 includes an actuating part 63, a limiting stop plate 64, a kimming screw 37, and a T-shaped boss 35. The T-shaped boss 35 is connected to the bottom of the limiting stop plate 64. The front end of the limiting stop plate 64 protrudes relative to the front end of the T-shaped boss 35. Both the limiting stop plate 64 and the T-shaped boss 35 are connected to the actuating part 63. The top surface of the actuating part 63 is provided with anti-slip texture. The actuating part 63 is provided with a vertical threaded hole 36. The kimming screw 37 is installed in the threaded hole 36.

[0067] The top surface of the anchor guide sleeve 62 is provided with a T-shaped groove 34 that matches the T-shaped boss 35. The top surface of the anchor guide sleeve 62 is provided with a first stop hole 65 and a second stop hole 66. The second stop hole 66 is located behind the first stop hole 65, and the distance between the two stop holes is 10mm. By moving the limiting slide rod 61 along the T-shaped groove 34 with the actuating part 63, the tip of the fin screw 37 can be inserted into different stop holes to position the limiting slide rod 61. When the fin screw 37 is inserted into the first stop hole 65, the front end of the limiting stop plate 64 protrudes relative to the front end of the anchor guide sleeve 62; when the fin screw 37 is inserted into the second stop hole 66, the front end of the limiting stop plate 64 retracts relative to the front end of the anchor guide sleeve 62.

[0068] In order to limit the length of the protrusion of the front end of the limiting stop plate 64 relative to the front end of the anchor guide sleeve 62, a blocking block 67 is provided at the front end of the slide to close the front end of the slide. When the T-shaped boss 35 moves to abut against the blocking block 67, the limiting stop plate 64 reaches the limit push-out position.

[0069] The front end of the anchor guide sleeve 62 is tapered, and the top of the tapered end is rounded. The bottom surface of the anchor guide sleeve 62 is provided with an anchor guide groove 68, which runs through the front and rear ends of the anchor guide sleeve 62.

[0070] During the operation, the limiting blocking plate 64 retracts relative to the anchor guide sleeve 62 (the kimming screw 37 on the limiting slide bar 61 is located in the second stop hole 66), the glenoid stabilizing anchor guide is inserted into the human joint with the conical front end, then the limiting slide bar 61 is pushed to make the limiting blocking plate 64 protrude out of the anchor guide sleeve 62 and be placed at the edge of the glenoid defect, and then the anchor hole is drilled along the anchor guide groove 68.

[0071] The glenoid stabilizing anchor guide is used. During the operation, a sliding limiting rod is pushed out and positioned at the edge of the glenoid defect. Then, the anchor hole is drilled along the anchor guide sleeve. The glenoid stabilizing anchor guide serves as an auxiliary tool for drilling the anchor hole, positioning the tool for drilling the anchor hole and helping to improve the positional accuracy of the anchor hole.

[0072] Example 2

[0073] This embodiment provides a coracoid osteotomy, drilling, and suture system, which differs from the coracoid osteotomy, drilling, and suture system in Embodiment 1 in that the structure of the coracoid osteotomy locator is different.

[0074] like Figures 14 to 17 The coracoid osteotomy locator provided in this embodiment includes a locator body and a handle. The locator body includes a first side plate 2, a second side plate 3, and a positioning plate 4. The first side plate 2 and the second side plate 3 are parallel to each other and their upper ends are connected to a top plate 1. A channel for accommodating the coracoid process is formed between the first side plate 2 and the second side plate 3. The positioning plate 4 extends upward from the edge of the top plate 1. The first side plate 2 and the second side plate 3 are located on the same side of the positioning plate 4. The side of the positioning plate 4 facing away from the first side plate 2 and the second side plate 3 is located above the channel entrance and serves as the osteotomy guide plane 6. The angle A formed by the osteotomy guide plane 6 and the channel depth direction is 30° to 90°. The handle 5 is connected to the top plate 1. Specifically, the handle 5 is connected to the top of the top plate 1 or to the side of the top plate 1 at a position opposite to the positioning plate 4.

[0075] Preferably, the top surface of the top plate 1 protrudes upward to form a column 7, and the column 7 is provided with a guide pin hole 8 that penetrates the top plate 1. After the coracoid osteotomy locator is placed on the coracoid process, a guide pin is inserted along the guide pin hole 8 to fix the relative position of the coracoid osteotomy locator and the coracoid process.

[0076] The top plate 1 of the coracoid osteotomy locator does not have a probe hole. The handle 5 is L-shaped, consisting of a connecting rod 51 and a grip 52. One end of the grip 52 has a square insertion hole, and one end of the connecting rod 51 has a square insertion part that matches the insertion hole. By cooperating with the positioning hole and the insertion part, the relative angle between the grip 52 and the connecting rod 51 can be changed (the grip 52 can switch to four positions). The connecting rod 51 of the handle 5 has a through hole communicating with the guide pin hole 8 on the top plate 1. One end of the connecting rod 51 of the handle 5 has a slot 53 that matches the shape of the column 7 on the top plate 1. The connecting rod 51 of the handle 5 is inserted into the outside of the column 7 through the slot 53, thereby realizing the detachable connection between the handle 5 and the column 7. The top plate 1, the first side plate 2, and the second side plate 3 all have a hollow structure. The edge of the coracoid process can be directly seen from the hollow part. The hollow structure can reduce the weight of the coracoid osteotomy locator.

[0077] Example 3

[0078] This embodiment provides a coracoid osteotomy, drilling, and suture system, which differs from the coracoid osteotomy, drilling, and suture system in Embodiment 1 in that the structure of the coracoid osteotomy locator is different.

[0079] like Figures 18 to 20 The coracoid process osteotomy locator includes a handle 5, a sliding block 32, and a locator body 31. The locator body 31 is a vertical plate and includes a first side plate 2, a second side plate 3, and a positioning part 33. The bottom ends of the positioning part 33 extend downwards to form opposing first side plates 2 and second side plates 3, forming a channel between the first side plates 2 and the second side plates 3 for accommodating the coracoid process. The handle 5 is mounted on the sliding block 32, which has a vertical guide pin hole 8. The sliding block 32 is connected to one side of the positioning part 33 and its horizontal position is adjustable. The side of the positioning part 33 facing away from the handle 5 (the side near the channel entrance) serves as the osteotomy guide plane 6.

[0080] In the specific structure, the positioning part 33 is provided with a horizontal T-shaped groove 34, the sliding block 32 is provided with a T-shaped boss 35, the T-shaped boss 35 is inserted into the T-shaped groove 34, the positioning part 33 is provided with a threaded hole 36, a kimming screw 37 is installed in the threaded hole 36, and the positioning part 33 is provided with multiple positioning holes 38 along the length of the T-shaped groove 34. By pulling the sliding block 32, the tip of the kimming screw 37 can be inserted into different positioning holes 38, thereby fixing the sliding block 32 in different positions. That is to say, the handle 5 has multiple positions.

[0081] To prevent the T-shaped protrusion 35 from detaching from the T-shaped groove 34, glue can be used to seal both ends of the T-shaped groove 34, or screws can be installed in the T-shaped groove 34 to block the T-shaped protrusion 35. In this embodiment, the coracoid osteotomy locator is made of metal, which can flatten the T-shaped groove 34 to prevent the T-shaped protrusion 35 from detaching.

[0082] The locator body 31 is a vertical plate with a thickness of 7mm. Its relatively thin thickness means the channel 10 has a short depth, thus minimizing obstruction of the view and facilitating adjustment of the coracoid osteotomy locator's position relative to the coracoid process. The top surface of the locator body 31 has graduations along the width of the channel 10, with a value range of 0 to 25mm, used to measure the length and width of the coracoid process being cut.

[0083] After placing the coracoid osteotomy locator on the coracoid process (the coracoid process is inserted into the channel), insert the guide pin through the guide pin hole 8 to fix the relative position of the coracoid osteotomy locator and the coracoid process.

[0084] The above-described embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features therein. These modifications or substitutions do not cause the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention. Therefore, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

Claims

1. A system for coracoid process osteotomy, drilling, and suture threading, characterized in that, Including coracoid osteotomy locator, box drill guide and glenoid stabilizing anchor guide; The coracoid osteotomy locator includes a locator body and a handle. The locator body has a channel for accommodating the coracoid process, and a vertical osteotomy guide plane is provided above the channel. The locator body is provided with a guide pin hole, and the handle is connected to the locator body. The locator body is provided with multiple probe holes located in the same straight line, and the distance L2 between the center of the guide pin hole and the probe hole is 3mm to 8mm. The box-type drilling guide includes a base and a clamping plate. The base includes a bottom plate, a third side plate, a fourth side plate, and a clamping plate. The third and fourth side plates are opposite each other and both are connected to the bottom plate. The clamping plate is movably disposed between the third and fourth side plates. The clamping plate and the fourth side plate cooperate to clamp the osteotomy block placed in the space enclosed by the clamping plate, the fourth side plate, and the bottom plate. The box-type drilling guide is provided with a drilling guide hole corresponding to the position of the osteotomy block. The upper end of the clamping plate extends toward the fourth side plate to form a first horizontal connecting part, and the first horizontal connecting part extends upward to form a first column. The first column has a vertical first drilling guide hole, which penetrates the bottom surface of the first horizontal connecting part. The center of the first drilling guide hole is 5mm away from the clamping plate. The upper end of the fourth side plate extends towards the side of the clamping plate to form a second horizontal connecting part. The second horizontal connecting part extends upward to form a second column. The second column has a vertical second drilling guide hole that penetrates the bottom surface of the second horizontal connecting part. The center of the second drilling guide hole is 5mm away from the fourth side plate. A glenoid stabilizing anchor guide includes a limiting slide rod and an anchor guide sleeve. The limiting slide rod and the anchor guide sleeve are connected by a sliding rod. The limiting slide rod has a first state in which its front end protrudes relative to the front end of the anchor guide sleeve and a second state in which its front end retracts relative to the front end of the anchor guide sleeve. The bottom surface of the anchor guide sleeve is provided with an anchor guide groove, which extends through the front and rear ends of the anchor guide sleeve.

2. The coracoid process osteotomy, drilling, and suture system according to claim 1, characterized in that, The locator body of the coracoid osteotomy locator includes a top plate, a first side plate, a second side plate, and a positioning plate. The first side plate and the second side plate are parallel to each other and their upper ends are connected to the top plate. A channel for accommodating the coracoid process is formed between the first side plate and the second side plate. The positioning plate extends upward from the edge of the top plate. The first side plate and the second side plate are located on the same side of the positioning plate. The side of the positioning plate facing away from the first side plate and the second side plate is located above the channel entrance and serves as the osteotomy guide plane. The angle A formed by the osteotomy guide plane and the depth direction of the channel is 30° to 90°. The top surface of the top plate protrudes upward to form a column. The column has a guide pin hole that penetrates the top plate. The top plate has multiple probe holes located on the same straight line. The distance L2 between the center of the guide pin hole and the probe hole is 3mm to 8mm. The handle is connected to the top plate.

3. The coracoid process osteotomy, drilling, and suture system according to claim 1, characterized in that, The box-type drilling guide also includes a spring, a connecting pin, and an end cap. The third side plate has a spring mounting hole, in which the spring is located. The spring's axis is along the left-right direction. One end of the connecting pin is connected to the clamping plate, and the other end is inserted into the spring mounting hole. The end of the spring mounting hole away from the connecting pin has an internal thread. The outer circumferential surface of the end cap has an external thread. The end cap is installed in the spring mounting hole through the cooperation of the external and internal threads. The two ends of the spring abut against the end cap and the connecting pin, respectively.

4. The coracoid process osteotomy, drilling, and suture system according to claim 1, characterized in that, The bottom of the clamp plate has protrusions extending downwards at both the front and rear ends. The base has guide grooves extending in the left and right directions for each protrusion position, and the protrusions are slidably set in the guide grooves.

5. The coracoid process osteotomy, drilling, and suture system according to claim 1, characterized in that, The diameter of the first drill guide hole is 2.5mm, and the distance between the bottom surface of the first horizontal connecting part and the base plate is 10mm; The diameter of the second drill guide hole is 2.5mm, and the distance between the bottom surface of the second horizontal connecting part and the base plate is 10mm.

6. The coracoid process osteotomy, drilling, and suture system according to claim 1, characterized in that, The base plate, the third side plate, and the fourth side plate are provided with corresponding grooves with a width of 1.5mm. The grooves extend in the front-to-back direction, and the center height of the grooves is 3mm away from the base plate.

7. The coracoid process osteotomy, drilling, and suture system according to claim 1, characterized in that, The limiting slide bar includes a toggle part, a limiting stop plate, a kimming screw, and a T-shaped boss. The T-shaped boss is connected to the bottom of the limiting stop plate, and the front end of the limiting stop plate protrudes relative to the front end of the T-shaped boss. Both the limiting stop plate and the T-shaped boss are connected to the toggle part. The top surface of the toggle part is provided with anti-slip texture, and the toggle part is provided with a vertical threaded hole. The kimming screw is installed in the threaded hole. The top surface of the anchor guide sleeve is provided with a T-shaped groove that matches the T-shaped boss. The top surface of the anchor guide sleeve is provided with a first stop hole and a second stop hole. The second stop hole is located behind the first stop hole, and the front-to-back distance between the two stop holes is 10mm. By moving the limiting slide bar along the T-shaped slide groove with the actuating part, the tip of the Jimi screw can be inserted into different stop holes to position the limiting slide bar; when the Jimi screw is inserted into the first stop hole, the front end of the limiting stop plate protrudes relative to the front end of the anchor guide sleeve; when the Jimi screw is inserted into the second stop hole, the front end of the limiting stop plate retracts relative to the front end of the anchor guide sleeve. The front end of the anchor guide sleeve is tapered, and the top of the tapered sleeve is rounded.

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