Medical shoulder arthroscopy bone grafting tool
By designing a medical shoulder arthroscopic bone grafting tool that coordinates the sheath and inner core mechanism, the problems of soft tissue interference and positional control caused by existing tools have been solved, enabling precise implantation of bone blocks and rapid recovery.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI SIXTH PEOPLES HOSPITAL
- Filing Date
- 2025-01-15
- Publication Date
- 2026-06-02
Smart Images
Figure CN224307456U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of medical devices and related fields, and in particular to a medical shoulder arthroscopy bone grafting tool. Background Technology
[0002] Currently, in shoulder arthroscopic surgery, patients with recurrent anterior shoulder dislocation and large glenoid bone defects require bone grafting to restore joint stability. Existing bone grafting tools are relatively simple, lacking bone graft delivery devices and relying solely on sutures for transport. Furthermore, these tools can easily interfere with surrounding soft tissues during implantation, making implantation difficult. In addition, existing tools cannot effectively control bone graft rotation, leading to unsatisfactory placement after implantation and often requiring adjustments, thus increasing surgical time. Utility Model Content
[0003] In view of this, and to solve the above problems, the purpose of this utility model is to provide a medical shoulder arthroscopic bone grafting tool, comprising:
[0004] Sheath, inner core mechanism, implantation mechanism;
[0005] The sheath is hollow;
[0006] The inner core mechanism or the implantation mechanism can be inserted into the sheath;
[0007] The inner core mechanism includes an inner core rod and an operating block connected in sequence. The inner core rod extends into the sheath tube, and the inner core rod and the operating block are provided with a first guide pin hole that communicates with each other.
[0008] The implantation mechanism includes a fixing block, a connecting rod, and an implantation block connected in sequence. The connecting rod and the implantation block extend into the sheath. The fixing block, the connecting rod, and the implantation block are provided with interconnected second guide needle holes. The fixing block is provided with a plurality of first guide wire holes, and the implantation block is provided with a plurality of second guide wire holes.
[0009] In the aforementioned medical shoulder arthroscopy bone grafting tool, the top end of the inner core rod is connected to the operating block via a connecting part, and the bottom end of the inner core rod is provided with a tapered part.
[0010] In the aforementioned medical shoulder arthroscopy bone grafting tool, the outer wall of the inner core rod is provided with a plurality of first longitudinal grooves.
[0011] In the aforementioned medical shoulder arthroscopy bone grafting tool, the first wire hole array is disposed on the fixation block, and the second wire hole array is disposed on the implantation block, with each first wire hole and each second wire hole being disposed opposite to each other.
[0012] The aforementioned medical shoulder arthroscopy bone grafting tool includes a plurality of wire-locking grooves on the edge of the fixation block.
[0013] In the aforementioned medical shoulder arthroscopy bone grafting tool, the outer wall of the implant block is provided with a plurality of second longitudinal grooves.
[0014] The aforementioned medical shoulder arthroscopic bone grafting tool further includes: a handle; the handle is installed on the outer wall of the upper end of the sheath.
[0015] In the aforementioned medical shoulder arthroscopy bone grafting tool, the outer wall of the inner core rod is fitted to the inner wall of the sheath, and the inner core rod and the operating block are integrally formed.
[0016] In the aforementioned medical shoulder arthroscopy bone grafting tool, the outer wall of the implant block is fitted to the inner wall of the sheath, and the fixation block, the connecting rod, and the implant block are integrally formed.
[0017] The aforementioned medical shoulder arthroscopic bone grafting tool has a handle with several waist-shaped through holes.
[0018] The positive effects of the above technical solution compared with the existing technology are:
[0019] By applying this utility model, a medical shoulder arthroscopic bone grafting tool is provided. This device, through the coordinated use of the sheath, inner core mechanism and implantation mechanism, can not only adapt to regular allogeneic bone blocks, but also to the irregular shape and size of autologous iliac bone, and implant bone blocks more accurately, thereby improving the success rate of bone grafting, reducing interference with surrounding soft tissues during the bone grafting process, helping to protect surrounding tissues, reducing surgical trauma, and accelerating postoperative recovery. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of a medical shoulder arthroscopic bone grafting tool according to the present invention.
[0021] Figure 2 for Figure 1 Enlarged view of part A in the middle.
[0022] Figure 3 This is a schematic diagram of the inner core mechanism in this utility model.
[0023] Figure 4 This is a schematic diagram of the bridge tube in this utility model.
[0024] Figure 5 This is a schematic diagram of the implantation mechanism inserted into the sheath in this utility model.
[0025] Figure 6 for Figure 5 Enlarged view of section B in the middle.
[0026] Figure 7 This is a schematic diagram of the implantation mechanism in this utility model.
[0027] Figure 8 This is a diagram illustrating the first step of the operation in this utility model.
[0028] Figure 9 This is an operation diagram for the second step in this utility model.
[0029] Figure 10 This is an operation diagram for the third step in this utility model.
[0030] Figure 11 This is an operation diagram for the fourth step in this utility model.
[0031] Figure 12 This is an operation diagram for the fifth step in this utility model.
[0032] Figure 13 This is an operation diagram for the sixth step in this utility model.
[0033] Figure 14 This is a diagram illustrating the seventh step of the operation in this utility model.
[0034] Figure 15 This is an operation diagram for the eighth step in this utility model.
[0035] 1. Sheath; 2. Inner core mechanism; 21. Inner core rod; 22. Operating block; 23. Connecting part; 24. Conical part; 3. Implantation mechanism; 31. Fixing block; 32. Connecting rod; 33. Implantation block; 4. First guide pin hole; 5. Second guide pin hole; 6. First wire hole; 7. Second wire hole; 8. Kirschner wire; 9. Handle; 10. Wire clamping groove; 11. First longitudinal groove; 12. Second longitudinal groove; 13. Waist-shaped through hole; 14. Bone block. Detailed Implementation
[0036] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention.
[0037] The structures, proportions, and sizes illustrated in the accompanying drawings are merely for illustrative purposes and to aid those skilled in the art. They are not intended to limit the scope of this invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, provided they do not affect the effectiveness or purpose of this invention, should still fall within the scope of the technical content disclosed herein. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.
[0038] like Figures 1 to 7 The image shows a preferred embodiment of a medical shoulder arthroscopic bone grafting tool, which includes: a sheath 1, an inner core mechanism 2, and an implantation mechanism 3.
[0039] The sheath 1 is hollow; the inner core mechanism 2 or the implantation mechanism 3 can be inserted into the sheath 1; wherein, the inner core mechanism 2 includes an inner core rod 21 and an operating block 22 connected in sequence, the inner core rod 21 extends into the sheath 1, and the inner core rod 21 and the operating block 22 are provided with a first guide needle hole 5 that communicates with each other; the implantation mechanism 3 includes a fixing block 31, a connecting rod 32 and an implantation block 33 connected in sequence, the connecting rod 32 and the implantation block 33 extend into the sheath 1, and the fixing block 31, the connecting rod 32 and the implantation block 33 are provided with a second guide needle hole 5 that communicates with each other, the fixing block 31 is provided with a plurality of first guide wire holes 6, and the implantation block 33 is provided with a plurality of second guide wire holes 7.
[0040] In actual use, the inner core mechanism 2 can deliver the sheath 1 into the area where bone grafting is needed, then remove the inner core mechanism 2 from the sheath 1, and then insert the implantation mechanism 3 into the sheath 1, delivering bone to the area where bone grafting is needed through the bone grafting mechanism 3.
[0041] Based on the above, this utility model also has the following embodiments:
[0042] Furthermore, in a medical shoulder arthroscopy bone grafting tool, the top end of the inner core rod 2 is connected to the operating block 22 via a connecting part 23, and the bottom end of the inner core rod 21 is provided with a conical part 24. Specifically, the inner core rod 2 is cylindrical in shape, the connecting part 23 is also cylindrical in shape, the operating block 22 is disc-shaped for easy gripping by the user, and the conical part 24 facilitates insertion into the skin and bone.
[0043] Furthermore, in a medical shoulder arthroscopy bone grafting tool, the outer wall of the inner core rod 21 is provided with a plurality of first longitudinal grooves. Specifically, the presence of a plurality of first longitudinal grooves 11 on the outer wall of the inner core rod 21 reduces resistance during rotation, facilitating rotation.
[0044] Furthermore, in a medical shoulder arthroscopic bone grafting tool, a first guide hole 6 is arrayed on a fixation block 31, and a second guide hole 7 is arrayed on an implantation block 33, with each first guide hole 6 and each second guide hole 7 arranged opposite to each other. Specifically, the first guide hole 6 and the second guide hole 7 are used for threading sutures.
[0045] Furthermore, in a medical shoulder arthroscopic bone grafting tool, the edge of the fixation block 31 is provided with several suture grooves 10. Specifically, the suture grooves 10 are used to hold the head of the suture.
[0046] Furthermore, in a medical shoulder arthroscopic bone grafting tool, the outer wall of the implant block 33 is provided with a plurality of second longitudinal grooves 12. Specifically, the plurality of second longitudinal grooves 12 enable the implant block 33 to rotate inside the sheath 1 and also effectively reduce resistance.
[0047] Furthermore, a medical shoulder arthroscopic bone grafting tool further includes: a handle 9; the handle 9 is installed on the outer wall of the upper end of the sheath 1. Specifically, the sheath 1 can be operated by holding the handle 9.
[0048] Furthermore, in a medical shoulder arthroscopy bone grafting tool, the outer wall of the inner core rod 21 is fitted to the inner wall of the sheath tube 1, and the inner core rod 21 and the operating block 22 are integrally formed. Specifically, the inner core rod 21 is fitted to the sheath tube 1, allowing the inner core rod 21 to rotate within the sheath tube 1. The rotation with a certain resistance makes it easier to control the position during rotation and less prone to tilting.
[0049] Furthermore, in a medical shoulder arthroscopy bone grafting tool, the outer wall of the implant block 33 is fitted to the inner wall of the sheath 1, and the fixing block 31, connecting rod 32, and implant block 33 are integrally formed. Specifically, the implant block 33 and the sheath 1 have a certain resistance to rotation, which makes it easier to control the position during rotation and less prone to relative tilting.
[0050] Furthermore, in a medical shoulder arthroscopy bone grafting tool, the handle 9 is provided with several waist-shaped through holes 13. Specifically, the waist-shaped through holes 13 make it convenient for the user to hold.
[0051] The specific steps for using this device are as follows:
[0052] Step 1: Please refer to Figure 8 As shown, first insert a Kirschner wire 8 into the bone graft site.
[0053] Step Two: Please refer to Figure 9As shown, the user holds the operating block 22 and drives the inner core rod 21 to be installed inside the sheath tube 1.
[0054] Step 3: Please refer to Figure 10 As shown, the inner core rod 21 is installed inside the sheath tube 1.
[0055] Step 4: Please refer to Figure 11 As shown, the Kirschner wire 8 is passed through the first guide hole 4 on the inner core rod 21 and the operating block 22, so that the inner core rod 21 drives the hollow sheath 1 to be inserted into the skin and muscle incision along the Kirschner wire 8, so that the conical part 24 on the hollow sheath 1 and the inner core rod 21 abuts against the bone.
[0056] Step 5: Please refer to Figure 12 As shown, the Kirschner wire 8 is taken out from the first guide hole 4 by hand, and then the inner core rod 21 is withdrawn from the hollow sheath 1 by hand using the operating block 22, thus establishing an orthopedic implantation channel through the hollow sheath 1.
[0057] Step 6: Please refer to Figure 13 As shown, the bone block 14 is pre-threaded with sutures, and then the four ends of the sutures are separated from the four second guide holes 7 on the implant block 33, and finally separated from the four first guide holes 6 on the fixing block 31, so that the four ends of the sutures are locked on the surrounding suture grooves 10.
[0058] Step 7: Please refer to Figure 14 As shown, the hand-held fixing block 31 drives the implant block 33 to move via the connecting rod 32, and the implant block 33 drives the pre-installed bone block 14 to move into the hollow sheath 1.
[0059] Step 8: Please see Figure 15 As shown, after the bone block 14 is implanted, the hollow sheath 1 and the implantation mechanism 3 are removed, and the bone block 14 is fixed.
[0060] The above description is only a preferred embodiment of the present utility model and does not limit the implementation method and protection scope of the present utility model. Those skilled in the art should realize that all solutions obtained by equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A medical arthroscopic bone grafting tool characterized by, include: Sheath, inner core mechanism, implantation mechanism; The sheath is hollow; The inner core mechanism or the implantation mechanism can be inserted into the sheath; The inner core mechanism includes an inner core rod and an operating block connected in sequence. The inner core rod extends into the sheath tube, and the inner core rod and the operating block are provided with a first guide pin hole that communicates with each other. The implantation mechanism includes a fixing block, a connecting rod, and an implantation block connected in sequence. The connecting rod and the implantation block extend into the sheath. The fixing block, the connecting rod, and the implantation block are provided with interconnected second guide needle holes. The fixing block is provided with a plurality of first guide wire holes, and the implantation block is provided with a plurality of second guide wire holes.
2. The medical shoulder arthroscopic bone grafting tool according to claim 1, characterized in that, The top end of the inner core rod is connected to the operating block via a connecting part, and the bottom end of the inner core rod is provided with a tapered part.
3. The medical shoulder arthroscopic bone grafting tool according to claim 1, characterized in that, The outer wall of the inner core rod is provided with a plurality of first longitudinal grooves.
4. The medical shoulder arthroscopic bone grafting tool according to claim 1, characterized in that, The first wire hole array is disposed on the fixing block, and the second wire hole array is disposed on the implantation block, with each of the first wire hole and each of the second wire holes being disposed opposite to each other.
5. The medical shoulder arthroscopic bone grafting tool according to claim 1, characterized in that, The edge of the fixing block is provided with several wire-locking grooves.
6. The medical shoulder arthroscopic bone grafting tool according to claim 1, characterized in that, The outer wall array of the implant block is provided with several second longitudinal grooves.
7. The medical shoulder arthroscopic bone grafting tool according to claim 1, characterized in that, Also includes: Handle; the handle is mounted on the outer wall of the upper end of the sheath.
8. The medical shoulder arthroscopic bone grafting tool according to claim 1, characterized in that, The outer wall of the inner core rod is fitted to the inner wall of the sheath tube, and the inner core rod and the operating block are integrally formed.
9. The medical shoulder arthroscopic bone grafting tool according to claim 1, characterized in that, The outer wall of the implant block is fitted to the inner wall of the sheath, and the fixing block, the connecting rod, and the implant block are integrally formed.
10. A medical shoulder arthroscopic bone grafting tool according to claim 7, characterized in that, The handle has several waist-shaped through holes.