Percutaneous positioning bidirectional adjustment coracoid-clavicle bone tunnel guider
The bidirectional adjustable coracoid-clavicular bone tunnel guide, which is percutaneously positioned, uses a positioning guide pin and adjustable components to achieve precise positioning of the bone tunnel from the clavicle to the coracoid process. This solves the problems of long incisions, large trauma, and inaccurate positioning of existing guides, and improves the safety and aesthetics of the surgery.
Patent Information
- Application Number
- CN202422706530.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-07
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2034-11-07
AI Technical Summary
Existing guides result in long incisions, significant trauma, inaccurate positioning, and inconvenience when preparing the clavicle-coracoid bone tunnel, especially affecting aesthetics in female patients.
The percutaneous bidirectional adjustable coracoid-clavicular bone tunnel guide uses a positioning guide pin inserted into the coracoid bone under the assistance of C-arm fluoroscopy. Combined with an adjustable height and angle guide sleeve assembly, it achieves precise positioning without the need for a coracoid lateral incision or longitudinal splitting tendon. The positioning point remains fixed and the operation is quick.
It reduces surgical trauma, avoids incision scars, improves positioning accuracy and ease of use, and meets aesthetic requirements.
Smart Images
Figure CN223845746U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to medical instrument technical field, specifically say a kind of through percutaneous positioning mode, the guide of positioning and drilling the process of clavicle to coracoid process bone channel. BACKGROUND
[0002] The application of hinged steel plate technology minimally invasive treatment of acromioclavicular joint dislocation needs to prepare the process of clavicle to coracoid process bone channel, the existing guide needs to make two incisions on the surface of clavicle and coracoid process during application to expose the upper surface of clavicle and the base of coracoid process respectively, since the position of the base of coracoid process is deep, and longitudinal splitting combined tendon is needed to obtain exposure, so the length of incision needed is longer, and the trauma is large, and the incision scar after operation affects the beauty of shoulder, especially in female patients. At the same time, the positioning part of the existing guide on the coracoid process side is in the form of a sharp point, which needs to be inserted through the incision on the coracoid process side and rested on the bone surface below the base of coracoid process during use, and the shape does not match the bone surface of the base of coracoid process, so the positioning point is easy to slip during use, which makes the positioning of the bone channel deviate easily, and repeated adjustment is needed during operation, which is not accurate, so it is not convenient for clinical use. In view of the shortcomings of long incision, large trauma, inaccurate positioning and inconvenient use of the existing guide during application, it is necessary to further improve. SUMMARY
[0003] The utility model aims at solving the problems of long incision, large trauma, inaccurate positioning and inconvenient use of the existing guide when preparing the process of clavicle to coracoid process bone channel, and provides a percutaneous positioning coracoid process-clavicle bone channel guide with bidirectional adjustment. The guide relies on the positioning guide needle to be vertically punched into the coracoid process bone under the assistance of C-arm perspective image, without the need for incision on the coracoid process side, and without the need for longitudinal splitting combined tendon, so the trauma is small, and there is no incision scar on the shoulder, which is more beautiful. At the same time, the tip of the positioning guide needle punched into the bone is used as the positioning point of the coracoid process bone channel, which will not slip on the bone surface below the base of coracoid process like the existing guide, the positioning point is fixed and does not move, the positioning is more accurate, repeated adjustment is not needed, the operation is fast and convenient, and the problems of long incision, large trauma, inaccurate positioning and inconvenient use of the existing guide during application can be effectively solved.
[0004] The technical scheme adopted by the utility model is as follows:
[0005] The percutaneous positioning coracoid process-clavicle bone channel guide with bidirectional adjustment comprises a base, a scale guide rod, a positioning guide needle, a sliding locking knob assembly, an adjustable height guide rod assembly and an adjustable angle guide sleeve assembly.
[0006] The scale guide rod is fixedly connected above the base, one side of the base is provided with a positioning guide needle sleeve, the positioning guide needle passes through the positioning guide needle sleeve and is fixed by a first limiting nut on the side wall of the positioning guide needle sleeve, the sliding locking knob assembly is fixedly connected with one end of the adjustable height guide rod assembly, and the sliding locking knob assembly and the adjustable height guide rod assembly are both sleeved on the scale guide rod and can slide up and down along the scale guide rod.
[0007] The positioning guide needle is integrally composed of a tip, a needle body and a tail end, the needle body is in a cylindrical shape, the tip is a self-tapping thread, and the tail end is in a cuboid shape.
[0008] The scale guide rod is in a rod shape, a cross section thereof is in a square shape, one side surface is provided with a sliding tooth, a side surface adjacent to the sliding tooth surface is provided with scale marks, and one end surface of the scale guide rod is fixedly connected with the base.
[0009] The sliding locking knob assembly is composed of a groove box, a locking card, a sliding rotary wrench and a limiting spring, the groove box is in a hollow structure, the locking card and the limiting spring are coaxially fixed on the groove box, and the sliding rotary wrench can be inserted into one side of the groove box.
[0010] The sliding rotary wrench comprises a head, a body and a tail, a cylindrical surface of the head is provided with a circle of sliding teeth, the sliding teeth are engaged with the sliding teeth on the side surface of the scale guide rod, a limiting protrusion is arranged between the head and the body, the body is in a cylindrical shape, and the tail is in a flat sheet shape.
[0011] The adjustable height guide rod assembly is composed of a connecting block, a connecting sleeve, a scale sliding guide rod and a second limiting nut, the connecting block is fixedly connected with the lower end surface of the groove box of the sliding locking knob assembly, the connecting block is provided with a square hole coaxial with the groove box in the middle, and the scale guide rod can pass through the square hole and the groove box; the connecting sleeve is fixed on one side of the connecting block, the connecting sleeve is provided with slotted windows on opposite sides thereof, and the scale sliding guide rod can be inserted into the connecting sleeve and fixed by the second limiting nut installed on the outer side wall of the connecting sleeve.
[0012] The scale sliding guide rod is provided with scale marks on opposite surfaces thereof, one side surface of the scale sliding guide rod is provided with a groove, one end of the second limiting nut installed on the outer side wall of the connecting sleeve extends into the groove and is fixed by abutting against the groove; the scale sliding guide rod is provided with a radial hole at a distal end thereof and an axial hole at a tail end thereof.
[0013] The adjustable angle guide sleeve assembly is composed of a guide sleeve, a connecting rod and a limiting block, the connecting rod is inserted into the radial hole of the scale sliding guide rod, a third limiting nut is inserted into the axial hole of the scale sliding guide rod and fixedly connected with the connecting rod, the connecting rod is connected with the guide sleeve and the limiting block at two ends thereof, and the guide sleeve is hollow.
[0014] The utility model discloses a structure simple, low in cost, safe and reliable, and the beak protrusion side percutaneous positioning does not need to make the incision, and more does not need the vertical split joint tendon, and the trauma is small, and the postoperative incision scar does not affect the shoulder appearance problem. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is the overall structure front view of the utility model;
[0016] Figure 2 It is the overall structure plan view of the utility model;
[0017] Figure 3 It is Figure 1 A-A view of;
[0018] Figure 4 It is Figure 2 C-C view of;
[0019] Figure 5 It is the right view of the groove box of the utility model;
[0020] Figure 6 It is Figure 5 B-B view of;
[0021] Figure 7 It is the structure schematic diagram of the utility model sliding rotation wrench; DETAILED DESCRIPTION
[0022] The utility model will be further described in connection with the drawings.
[0023] As Figure 1 Indicated, percutaneous positioning two -way regulation beak -clavicle bone tunnel guider, including base 1, scale guide bar 3, positioning guide needle 2, sliding lock knob assembly 4, adjustable height guide bar assembly 5, adjustable angle guide sleeve assembly 6;
[0024] The scale guide bar 3 is fixedly connected on the top of the base 1, the positioning guide needle sleeve 101 is arranged on one side of the base 1, the positioning guide needle 2 passes through the positioning guide needle sleeve 101 and is fixed through the first limiting nut 102 of the side wall of the positioning guide needle sleeve 101, the sliding lock knob assembly 4 is fixedly connected with one end of the adjustable height guide bar assembly 5, and the sliding lock knob assembly 4 and the adjustable height guide bar assembly 5 are all sleeved on the scale guide bar 3 and can slide up and down along the scale guide bar 3, and the adjustable angle guide sleeve assembly 6 is movably connected on one side of the adjustable height guide bar assembly 5.
[0025] By Figure 3The structure of the positioning guide needle can be seen, the positioning guide needle 2 is composed of a tip, a needle body and a tail, the needle body is cylindrical, the tip is a self-tapping thread, and the tail is a cuboid, the tail can be sleeved into a wrench to rotate, so that the tip enters the bone, the needle body is provided with scale marks to mark the depth of entering the bone.
[0026] The scale guide rod 3 is rod-shaped, the cross section is square, one side is provided with a sliding tooth 301, the side adjacent to the sliding tooth is provided with scale marks, and one end surface of the scale guide rod 3 is fixedly connected with the base 1.
[0027] Figure 2 The overall structure of the utility model is shown in a top view, and the utility model comprises a sliding locking knob assembly 4, an adjustable height guide rod assembly 5 and an adjustable angle guide sleeve assembly 6, for the sake of display clarity, the sliding rotating wrench and the base are not shown in the figure.
[0028] As shown in Figure 1 and Figure 2 The sliding locking knob assembly 4 is composed of a groove box 401, a locking card 402, a sliding rotating wrench 403 and a limiting spring 404, the groove box 401 is a hollow structure, the locking card 402 and the limiting spring 404 are coaxially fixed on the groove box 401, and the sliding rotating wrench 403 can be inserted into one side of the groove box 401.
[0029] As can be seen from Figure 7 The structure of the sliding rotating wrench can be seen, the sliding rotating wrench 403 comprises a head, a body and a tail, the head is provided with a circle of sliding teeth on a cylindrical surface, the sliding teeth can be engaged with the sliding teeth 301 on the side of the scale guide rod 3, a limiting protrusion 4031 is arranged between the head and the body, the body is cylindrical, and the tail is in the shape of a flat sheet.
[0030] Further, in order to prevent the sliding rotating wrench 403 from falling off, a stopper 4032 is arranged at the front end of the head, due to the existence of the stopper 4032, the sliding rotating wrench 403 must be inserted before the groove box 401 is sleeved on the scale guide rod 3, otherwise the sliding rotating wrench 403 cannot be inserted.
[0031] As can be seen from Figure 5 and Figure 6The structure of the slot box can be seen. The slot box 401 is provided with a card hole 4011 on the upper side thereof, so that the tip of the locking card 402 enters the card hole 4011 and can be clamped on the sliding teeth 301 of the scale guide rod 3. The slot box 401 is provided with an axial hole 4012 in the middle, so that the locking card 402 and the limiting spring 404 are coaxially fixed on the slot box 401. The slot box 401 is provided with a cylinder 4013 at the lower part, so that the head of the sliding rotary wrench 403 is inserted. The cylinder 4013 is provided with an opening 4014 on one side, so that the sliding teeth of the head of the sliding rotary wrench 403 can be engaged with the sliding teeth 301 on the side of the scale guide rod 3. In use, the sliding rotary wrench 403 is inserted into the cylinder 4013, and then the scale guide rod 3 is sleeved into the slot box 401. At this time, the sliding teeth of the head of the sliding rotary wrench 403 are engaged with the sliding teeth 301 on the side of the scale guide rod 3. The tail of the locking card 402 is pressed, so that the tip of the locking card 402 is separated from the sliding teeth of the scale guide rod. The tail of the sliding rotary wrench 403 is rotated, so that the sliding locking knob assembly 4 and the adjustable height guide rod assembly 5 are slid up and down along the scale guide rod 3 to the appropriate position. The tail of the locking card 402 is released, so that the tip of the locking card 402 is clamped on the sliding teeth of the scale guide rod 3, and the locking is completed.
[0032] As shown in Figure 2 and Figure 4 , the adjustable height guide rod assembly 5 is composed of a connecting block 501, a connecting sleeve 502, a scale sliding guide rod 503 and a second limiting nut 504. The connecting block 501 is fixedly connected with the lower end surface of the slot box 401 of the sliding locking knob assembly 4. The connecting block 501 has a square hole coaxial with the slot box 401 in the middle, and the scale guide rod 3 can pass through the square hole to pass through the slot box. The connecting sleeve 502 is fixed on one side of the connecting block 501. The connecting sleeve 502 is provided with a slot-shaped window 5021 on the opposite sides thereof. The scale sliding guide rod 503 can pass into the connecting sleeve 502 and be fixed by the second limiting nut 504 installed on the outer side wall of the connecting sleeve 502.
[0033] In order to facilitate accurate positioning, the scale sliding guide rod 503 is marked with scales on the opposite surfaces thereof, and the scales can be observed through the slot-shaped window 5021 on the connecting sleeve 502. At the same time, in order to facilitate fixation, the scale sliding guide rod 503 is provided with a groove 5031 on one side surface thereof. One end of the second limiting nut 504 installed on the outer side wall of the connecting sleeve 502 extends into the groove 5031 and is fixed by abutting against the top. The scale sliding guide rod 503 is provided with a radial hole at the distal end and an axial hole at the tail end.
[0034] The adjustable angle guide sleeve assembly 6 is composed of a guide sleeve 601, a connecting rod 602 and a limiting block 603, the connecting rod 602 is inserted into a radial hole of the sliding guide rod 503 with scales, a third limiting nut 604 is inserted into an axial hole of the sliding guide rod 503 with scales and is fixed to the connecting rod 602, the connecting rod 602 is connected to the guide sleeve 601 and the limiting block 603 at two ends respectively, and the guide sleeve 601 is hollow.
[0035] Further, for the convenience of implementation, the needle body of the positioning guide needle is 6.0 cm long and 3 mm in diameter, the length of the self-tapping thread at the sharp end is 15 mm, the length of the cuboid at the tail end is 5 mm, the end face of the cuboid is 2 mm*2 mm, the needle body is provided with three scale marks with an interval of 1 cm, and the inner diameter of the positioning guide needle sleeve is 3.2 mm.
[0036] The scale guide rod is 14 cm long, the cross section is a square with a width of 7 mm, the sliding tooth surface penetrates the whole length of the scale guide rod, and the side surface adjacent to the sliding tooth surface is provided with scale marks of 1-8 cm.
[0037] The groove box of the sliding locking knob assembly is a hollow cuboid structure, 35 mm long, and the cross section is a square, the outer diameter of the square is 10 mm wide, and the inner diameter is 8 mm wide; the locking card of the sliding locking knob assembly is L-shaped and flat, the tail is blunt, the sharp end can be clamped on the sliding tooth of the scale guide rod, and the sliding locking knob assembly is prevented from falling; the limiting spring of the sliding locking knob assembly is a torsion spring with a four-spiral structure and a diameter of 1 mm; the sliding rotating handle of the sliding locking knob assembly has a head cylindrical surface with a sliding tooth width of 10 mm and a diameter of 10 mm.
[0038] The connecting block of the adjustable height guide rod assembly is a square metal block with a square hole with a side length of 8 mm in the middle; the connecting sleeve of the adjustable height guide rod assembly is a short cylindrical shape, 2.8 cm long, 11 mm in outer diameter and 9.5 mm in inner diameter; the groove-shaped window is 14 mm long and 3.5 mm wide;
[0039] The scale sliding guide rod of the adjustable height guide rod assembly is cylindrical, 6.5 cm long and 8 mm in diameter, and the side surface has a groove with a width of 3 mm and a depth of 2 mm; the distal end has a radial hole with a diameter of 3.5 mm; the tail end has an axial hole with a diameter of 2.5 mm;
[0040] The guide sleeve of the adjustable guide sleeve assembly is cylindrical, hollow, 1.5 cm long, 5 mm in outer diameter and 3 mm in inner diameter, and is welded to the tail of the connecting rod at an angle of θ=20 degrees; the connecting rod of the adjustable guide sleeve assembly is cylindrical, 3 mm in diameter and 3.5 cm long; the limiting block of the adjustable guide sleeve assembly is cylindrical, 5 mm in diameter and 1 cm long.
[0041] All components of the utility model are made of stainless steel.
[0042] The utility model discloses in the intraoperative application, first press the clavicle distal end reset acromioclavicular joint, drive in the kirschner wire temporary fixation, determine the rostral process base oval image under the C -arm perspective, and the perpendicular rostral process is driven into the positioning guide needle to the rostral process base oval image center under the C -arm monitoring, with the positioning guide needle needle body surface scale determines that the positioning guide needle is driven into the rostral process bone 1.5cm. On the rostral process longitudinal axis sagittal plane relative clavicular upper edge skin does 1cm long incision, cut open skin, subcutaneous exposure clavicular upper surface. Place the utility model directs ware, and the positioning sleeve is sleeved on the positioning guide needle and is fixed through the first limiting nut, and the adjustable height guide rod assembly and adjustable angle guide sleeve assembly are adjusted to the appropriate position and rotate the second, third limiting nut locking through adjustable height guide rod assembly and adjustable angle guide sleeve assembly adjustment guide sleeve up and down sliding amplitude and rotation angle, and rotate the sliding locking knob assembly wrench makes guide sleeve slide on the scale guide rod and stop against the clavicular upper surface, and check the scale guide rod side scale mark, and determine the clavicle to rostral process bone tunnel length, and this length is adjusted to need drive into the guide needle upper positioner distance from guide needle tip, to ensure that the guide needle drives into the safe length. After the guide sleeve drives the guide needle from the clavicle to the rostral process, remove the utility model directs ware, and the diameter 4.5mm hollow drill bit is along the guide needle and is drilled under the C -arm perspective monitoring and is made into the clavicle to rostral process bone tunnel. Remove the hollow drill bit and guide needle, and the locking hasp loop titanium plate is placed through the bone tunnel, and the distal end titanium plate is turned after loop and is resisted under the rostral process base bone surface, and the proximal end locking titanium plate is resisted on the clavicular bone surface, and the line loop is tightened and is knotted, and the acromioclavicular joint temporary fixation kirschner wire is removed, and the clavicular surface skin incision is sutured, and is bandaged, and the operation is ended.
Claims
1. A percutaneously positionable bi-directional coracoclavicular tunnel guide, comprising: The application relates to a kind of adjustable height and angle guide device, including base (1), scale guide rod (3), positioning guide needle (2), sliding locking knob assembly (4), adjustable height guide rod assembly (5), adjustable angle guide sleeve assembly (6); The base (1) is fixedly connected with the scale guide rod (3) above, one side of the base (1) is provided with a positioning guide needle sleeve (101), the positioning guide needle (2) passes through the positioning guide needle sleeve (101) and is fixed by a first limiting nut (102) on the side wall of the positioning guide needle sleeve (101), the sliding locking knob assembly (4) is fixedly connected with one end of the adjustable height guide rod assembly (5), and the sliding locking knob assembly (4) and the adjustable height guide rod assembly (5) are both sleeved on the scale guide rod (3) and can slide up and down along the scale guide rod (3), and the adjustable angle guide sleeve assembly (6) is movably connected to one side of the adjustable height guide rod assembly (5).
2. The percutaneously positionable bi-directional coracoclavicular tract guide of claim 1, wherein: The positioning guide needle (2) is integrally composed of a tip, a needle body and a tail end, the needle body is in a cylindrical shape, the tip is a self-tapping thread, and the tail end is in a cuboid shape, and the needle body is provided with scale marks.
3. The percutaneously positionable bi-directional coracoclavicular tract guide of claim 1, wherein: The scale guide rod (3) is in a rod shape, the cross section is in a square shape, one side is provided with a sliding tooth (301), the side adjacent to the sliding tooth surface is provided with scale marks, and one end surface of the scale guide rod (3) is fixedly connected with the base (1).
4. The percutaneously positionable bi-directional coracoclavicular tract guide of claim 1 wherein: The sliding locking knob assembly (4) is composed of a groove box (401), a locking card (402), a sliding rotary wrench (403) and a limiting spring (404), the groove box (401) is in a hollow structure, the locking card (402) and the limiting spring (404) are coaxially fixed on the groove box (401), and the sliding rotary wrench (403) can be inserted into one side of the groove box (401).
5. The percutaneously positionable bi-directional adjusting coracoclavicular tract guide of claim 4, wherein: The sliding rotary wrench (403) comprises a head, a body and a tail, the head is provided with a circle of sliding teeth on a cylindrical surface, the sliding teeth can be engaged with the sliding tooth (301) on the side of the scale guide rod (3), a limiting protrusion (4031) is arranged between the head and the body, the body is in a cylindrical shape, and the tail is in a flat sheet shape.
6. The percutaneously positionable bi-directional adjusting coracoclavicular tract guide of claim 5, wherein: The head of the sliding rotary wrench (403) is provided with a stop block (4032) at the front end.
7. The percutaneously positionable bi-directional adjusting coracoclavicular tract guide of claim 4, wherein: A card hole (4011) is arranged on one side of the upper portion of the groove box (401), an axle hole (4012) is arranged in the middle of the groove box (401), a cylinder (4013) is arranged on the lower portion of the groove box (401), and an opening (4014) is arranged on one side of the cylinder (4013).
8. The percutaneously positioned bi-directionally adjustable coracoclavicular tract guide of claim 1, wherein: The adjustable height guide rod assembly (5) is composed of a connecting block (501), a connecting sleeve (502), a scale sliding guide rod (503) and a second limiting nut (504), the connecting block (501) is fixedly connected with the lower end surface of the groove box (401) of the sliding locking knob assembly (4), the connecting block (501) is provided with a square hole coaxial with the groove box (401) in the middle, and the scale guide rod (3) can pass through the square hole and the groove box; The connecting sleeve (502) is fixed on one side of the connecting block (501), the connecting sleeve (502) is provided with a slotted window (5021) on the opposite sides, and the scale sliding guide rod (503) can pass into the connecting sleeve (502) and be fixed by the second limiting nut (504) arranged on the outer side wall of the connecting sleeve (502).
9. The percutaneously positionable bi-directional coracoclavicular tract guide of claim 8, wherein: The scale sliding guide rod (503) is marked with scales on opposite surfaces, one side of the scale sliding guide rod (503) is provided with a groove (5031), one end of a second limiting nut (504) installed on the outer side wall of the connecting sleeve (502) extends into the groove (5031) and is fixed by abutting against the inner wall of the groove (5031), the scale sliding guide rod (503) is provided with a radial hole at the distal end and an axial hole at the tail end.
10. The percutaneously positionable bi-directional coracoclavicular tract guide of claim 1 wherein: The angle-adjustable guide sleeve assembly (6) is composed of a guide sleeve (601), a connecting rod (602) and a limiting block (603), the connecting rod (602) penetrates into the radial hole of the scale sliding guide rod (503), a third limiting nut (604) penetrates into the axial hole of the scale sliding guide rod (503) and is fixed to the connecting rod (602), the connecting rod (602) is connected to the guide sleeve (601) and the limiting block (603) at two ends respectively, and the guide sleeve (601) is hollow.