Anchor guider
By designing an anchor guide for shoulder arthroscopy, the problem of inaccurate anchor placement during the operation is solved, the accuracy and safety of the operation are improved, and the postoperative repair effect is improved.
Patent Information
- Application Number
- CN202421828091.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-31
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-07-31
AI Technical Summary
During shoulder arthroscopy, due to limited visual field and small operating space, precise placement of anchors is very difficult, resulting in increased intraoperative complications, insufficiency of fixation and poor postoperative recovery.
An anchor guide is designed, including a body, a first hole and a second hole, the first hole is used to accommodate the anchor, and the second hole is used to accommodate the fixing needle. The guide helps the surgeon accurately locate the anchor placement point and ensures the stability of the body through the fixing needle.
It improves the accuracy and safety of the operation, shortens the surgical time, improves the postoperative repair effect, simplifies the learning curve, and improves patient satisfaction.
Smart Images
Figure CN222983087U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to an anchor screw guide device. Background Art
[0002] The subscapularis tendon is an important part of the rotator cuff and plays a key role in the internal rotation and forward elevation movements of the shoulder joint. After injury, it will lead to limited shoulder joint function and often accompanied by severe shoulder pain, seriously affecting the daily life and work of patients. Through arthroscopic surgery repair, local inflammation and pain can be relieved, the integrity and function of the subscapularis tendon can be restored, thereby improving the range of motion and strength of the shoulder joint and enhancing the quality of life of patients. However, the subscapularis tendon is located in the anteromedial part of the shoulder joint, its position is relatively deep and there are important neurovascular structures around it, such as the axillary nerve and axillary artery. During arthroscopic surgery, due to limited vision and narrow operating space, it is very difficult to accurately insert the anchor screw, and it is difficult for the surgeon to accurately position the anchor screw or it takes more time to position and adjust the anchor screw, resulting in a series of negative consequences such as increased intraoperative complications, insecure fixation and unsatisfactory postoperative recovery. Content of the Utility Model
[0003] The technical problem to be solved by the utility model is to overcome the defects that during arthroscopic surgery in the prior art, due to limited vision and narrow operating space, it is very difficult to accurately insert the anchor screw, and it is difficult for the surgeon to accurately position the anchor screw or it takes more time to position and adjust the anchor screw, resulting in a series of negative consequences such as increased intraoperative complications, insecure fixation and unsatisfactory postoperative recovery, and to provide an anchor screw guide device.
[0004] The utility model solves the above technical problem by the following technical scheme:
[0005] The utility model discloses an anchor screw guide device, which comprises a body. A first hole and a second hole are formed in the body. The first hole and the second hole penetrate through both ends of the body along the axial direction of the body. The first hole is closer to the axis of the body than the second hole, and the aperture of the first hole is larger than that of the second hole;
[0006] Wherein, the first hole is used for accommodating the anchor screw; the second hole is used for accommodating the fixing needle.
[0007] In this solution, the guide can help the surgeon to accurately locate the insertion point of the anchor, ensure that the anchor can be firmly fixed in the ideal position of the bone, reduce the risk of damage to surrounding tissues (such as nerves and blood vessels), and thus improve the success rate of the operation and the repair effect. The use of the anchor guide can reduce the possibility of misoperation during surgery, reduce the risk of fractures and anchor dislocation, and ensure the safety of the operation. In addition, the main body can be stably and accurately fixed to the anchor insertion point by the fixing needle, avoiding the displacement of the main body and the failure of anchor insertion caused by factors such as changes in body position, changes in surgical approach, blind spots in the operating field, and narrow space. The above-mentioned structural form can improve the accuracy and safety of the operation, shorten the operation time, improve the postoperative repair effect, simplify the learning curve, and improve patient satisfaction.
[0008] Preferably, the axis of the first hole coincides with the axis of the body.
[0009] Preferably, the anchor guide further includes a plurality of liners, each of which is tubular and has a different thickness, and one of the liners is disposed in the first hole and is detachably connected to the inner wall surface of the first hole.
[0010] In this solution, by adopting the above-mentioned structural form, the effective aperture of the first hole can be changed by changing the inner liner to meet the requirements of different anchor outer diameters, thereby increasing the use range of the anchor guide.
[0011] Preferably, a wall surface of the first hole away from the operating end of the body is provided with scale lines, and the scale lines on the first hole are used to align with the scale lines on the liner.
[0012] In this solution, the above-mentioned structural form is adopted to facilitate the alignment of the main body and the lining.
[0013] Preferably, the operating end of the body is serrated.
[0014] In this solution, the above-mentioned structural form is adopted to increase the contact area between the operating end and the bone, so that the operating end can firmly support the bone with the positioning protrusion.
[0015] Preferably, the height of the central area of the operating end of the body is lower than the height of the edge of the operating end of the body.
[0016] In this solution, the above-mentioned structural form is adopted to facilitate the edge positioning protrusion of the operating end to firmly support the bone.
[0017] Preferably, a third hole is formed on an outer wall surface of the body close to the operating end of the body, and the third hole is communicated with the first hole.
[0018] In this solution, with the above structural form, the operator can see the anchor through the arthroscope from the third hole, thereby determining the insertion depth and specific position of the anchor.
[0019] Preferably, the anchor guide further includes a holding part, the holding part is sleeved on one end of the body away from the operating end of the body, and at least part of the outer wall surface of the holding part is in an inverted conical shape.
[0020] In this solution, with the above structural form, it is convenient for the operator to hold.
[0021] Preferably, the number of the second holes is multiple, the multiple second holes are arranged circumferentially along the first hole, and the multiple second holes are arranged in one-to-one correspondence with the multiple fixing needles.
[0022] In this solution, with the above structural form, the distribution range of the fixing needles is increased, and further the stability and reliability of the body fixation are improved.
[0023] Preferably, the inner diameter of the first hole is one of 3 mm and 4.5 mm.
[0024] The positive and progressive effects of the present utility model are as follows:
[0025] The guide can help the surgeon accurately locate the insertion point of the anchor, ensure that the anchor can be firmly fixed at the ideal position of the bone, reduce the risk of damage to surrounding tissues (such as nerves and blood vessels), thereby improving the success rate and repair effect of the surgery. The use of the anchor guide can reduce the possibility of intraoperative misoperation, reduce the risk of fracture and anchor prolapse, and ensure the safety of the surgery. In addition, the body can be stably and accurately fixed at the anchor insertion point through the fixing needles, avoiding the displacement of the body and the failure of anchor insertion caused by factors such as body position change, surgical approach change, operation vision blind area and narrow space. With the above structural form, the accuracy and safety of the surgery can be improved, the operation time can be shortened, the postoperative repair effect can be improved, the learning curve can be simplified, and the patient satisfaction can be increased. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 It is a schematic structural view of the anchor guide according to an embodiment of the present utility model.
[0027] Figure 2 It is a partial schematic structural view of the anchor guide according to an embodiment of the present utility model.
[0028] Figure 3 It is a top view of the anchor guide according to an embodiment of the present utility model.
[0029] Figure 4 It is a top view structural schematic view of the anchor guide according to an embodiment of the present utility model.
[0030] Figure 5 Schematic diagram of the inner lining structure of the embodiment of the present utility model.
[0031] Figure 6 Schematic diagram of the anchor pin guide of the embodiment of the present utility model.
[0032] Explanation of reference numerals in the drawings:
[0033] Anchor pin guide 100
[0034] Body 1
[0035] First hole 11
[0036] Second hole 12
[0037] Operation end 13
[0038] Inner lining 2
[0039] Fourth hole 21
[0040] Third hole 3
[0041] Grip portion 4 Detailed implementation manners
[0042] The following is a preferred embodiment and is described in more clearly and completely in conjunction with the drawings for the present utility model.
[0043] As Figures 1 to 6 shown, this embodiment provides an anchor pin guide 100. The anchor pin guide 100 includes a body 1. A first hole 11 and a second hole 12 are formed in the body 1. The first hole 11 and the second hole 12 penetrate through both ends of the body 1 along the axial direction of the body 1. The first hole 11 is closer to the axis of the body 1 than the second hole 12, and the aperture of the first hole 11 is larger than the aperture of the second hole 12. Among them, the first hole 11 is used to accommodate the anchor pin; the second hole 12 is used to accommodate the fixing pin. Specifically, the guide can help the surgeon accurately locate the insertion point of the anchor pin, ensure that the anchor pin can be firmly fixed at the ideal position of the bone, reduce the risk of damage to surrounding tissues (such as nerves and blood vessels), thereby improving the success rate and repair effect of the operation. The use of the anchor pin guide 100 can reduce the possibility of intraoperative misoperation, reduce the risk of fracture and anchor pin prolapse, and ensure the safety of the operation. In addition, the body 1 can be stably and accurately fixed at the anchor pin insertion point through the fixing pin, avoiding the displacement of the body 1 and the failure of anchor pin insertion caused by factors such as body position change, surgical approach change, operation visual field blind area, and narrow space. Adopting the above structural form can improve the accuracy and safety of the operation, shorten the operation time, improve the postoperative repair effect, simplify the learning curve, and improve the patient's satisfaction.
[0044] In this embodiment, the axis of the first hole 11 coincides with the axis of the body 1.
[0045] Specifically, the diameters of existing arthroscopic shoulder surgery anchors are mainly divided into two specifications: 4.5 mm and 3.0 mm. Therefore, in this embodiment, the aperture diameter of the first hole 11 can be 4.5 mm or 3.0 mm. In other embodiments, the aperture diameter of the first hole 11 can also be selected according to the outer diameters of different specifications of the anchors.
[0046] In other embodiments, the first hole 11 can also be used to accommodate a drill bit or a hole opener. The specific components accommodated in the first hole 11 are not specifically limited herein.
[0047] As Figure 5 shown, the anchor guide 100 further includes a plurality of liners 2. Each liner 2 is tubular, and the thicknesses of the liners 2 are different. One of the liners 2 is disposed in the first hole 11 and is detachably connected to the inner wall surface of the first hole 11. With the above structural form, by changing the liner 2, the effective aperture diameter of the first hole 11 is changed to meet the requirements of different outer diameters of the anchors, thereby increasing the application range of the anchor guide 100.
[0048] Specifically, in this embodiment, when the thickness of the liner 2 is 0.75 mm, the effective aperture diameter of the first hole 11 is 3.0 mm, and the outer diameter of the liner 2 is 4.5 mm; when the thickness of the liner 2 is 1.05 mm, the effective aperture diameter of the first hole 11 is 2.4 mm, and the outer diameter of the liner 2 is 4.5 mm; when the thickness of the liner 2 is 1.45 mm, the effective aperture diameter of the first hole 11 is 1.6 mm, and the outer diameter of the liner 2 is 4.5 mm. In other embodiments, the specifications of the liner 2 can be adjusted according to actual needs and are not limited herein.
[0049] In addition, the effective aperture diameter of the first hole 11 mentioned above refers to the diameter that can accommodate the anchor.
[0050] Please refer to Figure 2 for understanding. The operating end 13 of the body 1 is serrated, increasing the contact area between the operating end 13 and the bone, so that the positioning convex of the operating end 13 can firmly hold against the bone.
[0051] In this embodiment, the height of the central region of the operating end 13 of the body 1 is lower than the height of the edge of the operating end 13 of the body 1. With the above structural form, it is convenient for the positioning convex at the edge of the operating end 13 to firmly hold against the bone.
[0052] As Figure 1 shown, a third hole 3 is formed on the outer wall surface of the body 1 near the operating end 13 of the body 1, and the third hole 3 is communicated with the first hole 11. With the above structural form, the operator can see the anchor through the arthroscope from the third hole 3, so as to determine the insertion depth and specific position of the anchor.
[0053] A scale line is provided on the wall surface of the first hole 11 away from the operating end 13 of the body 1, and the scale line on the first hole 11 is used to align with the scale line on the liner 2. The above structure is adopted to facilitate the alignment of the body 1 and the liner 2. It should be specifically explained that a fourth hole 21 is provided on the end of the liner 2 away from the scale line on the liner 2. When the scale line on the first hole 11 is aligned with the scale line on the liner 2, the axis of the fourth hole 21 coincides with the axis of the third hole 3, so that it is convenient for the operator to observe the anchor through the fourth hole 21 and the third hole 3.
[0054] The anchor guide 100 further includes a gripping portion 4, which is sleeved on an end of the body 1 away from the operating end 13 of the body 1, and at least part of the outer wall of the gripping portion 4 is in an inverted cone shape, so as to facilitate gripping by an operator.
[0055] There are multiple second holes 12, which are arranged circumferentially along the first hole 11, and the multiple second holes 12 are arranged one by one with the multiple fixing pins. The above structure increases the distribution range of the fixing pins, thereby further improving the stability and reliability of the fixing of the body 1.
[0056] In this embodiment, the number of the second holes 12 is two, and the two second holes 12 are symmetrically arranged along the axis of the body 1. In other embodiments, the number of the second holes 12 can be adjusted according to actual needs, which is not limited here.
[0057] When used, under arthroscopy, prepare the bone bed for anchor implantation at the lesser tubercle of the humerus, place the guide at the predetermined position of the subscapularis tendon insertion point, use the serrated positioning protrusion of the operating end 13 to firmly hold the bone, and accurately locate the insertion point of the anchor through the anchor guide 100. Then, drill into the bone through the second hole 12 through the fixing needle to ensure the accuracy and stability of the position of the anchor guide 100, and it will not move due to factors such as changes in body position, changes in surgical approach, blind spots in the operating field, and narrow space. Use a drill bit or a hole opener or other device to drill a hole on the lesser tubercle of the humerus through the first hole 11 to prepare for the insertion of the anchor and ensure that the anchor is firmly fixed in the bone.
[0058] Although the specific implementations of the utility model are described above, those skilled in the art should understand that this is only an example, and the protection scope of the utility model is defined by the attached claims. Those skilled in the art can make various changes or modifications to these implementations without departing from the principle and essence of the utility model, but these changes and modifications fall within the protection scope of the utility model.
Claims
1. An anchor guide, characterized in that: The anchor guide comprises a body, a first hole and a second hole are formed on the body, the first hole and the second hole pass through two ends of the body along the axis direction of the body, the first hole is closer to the axis of the body than the second hole, and the aperture of the first hole is larger than the aperture of the second hole; Wherein, the first hole is used to accommodate the anchor nail; the second hole is used to accommodate the fixing needle.
2. The anchor guide according to claim 1, characterized in that: The axis of the first hole coincides with the axis of the body.
3. The anchor guide according to claim 1, characterized in that: The anchor guide also includes a plurality of liners, each of which is tubular and has a different thickness. One of the liners is disposed in the first hole and is detachably connected to the inner wall surface of the first hole.
4. The anchor guide according to claim 3, characterized in that: A scale line is provided on the wall surface of the first hole away from the operating end of the body, and the scale line on the first hole is used to align with the scale line on the liner.
5. The anchor guide according to claim 1, characterized in that: The operating end of the body is in a sawtooth shape.
6. The anchor guide according to claim 5, characterized in that: The height of the central area of the operating end of the body is lower than the height of the edge of the operating end of the body.
7. The anchor guide according to claim 1, characterized in that: A third hole is formed on the outer wall surface of the main body close to the operating end of the main body, and the third hole is connected to the first hole.
8. The anchor guide according to claim 1, characterized in that: The anchor guide also includes a gripping portion, which is sleeved on an end of the body away from the operating end of the body, and at least a portion of the outer wall surface of the gripping portion is in an inverted cone shape.
9. The anchor guide according to claim 1, characterized in that: There are multiple second holes, and the multiple second holes are arranged along the circumference of the first hole. The multiple second holes are arranged in a one-to-one correspondence with the multiple fixing needles.
10. The anchor guide according to any one of claims 1 to 9, characterized in that: The inner diameter of the first hole is one of 3 mm and 4.5 mm.