Guider for implanting ankle hollow nail

Abstract

The utility model discloses a guider for placing an ankle hollow nail, which comprises a base, a rotating seat and a guide piece, and is characterized in that a fixed seat for mounting the rotating seat is fixed at the upper end of the base, annular grooves for balls to rotate are formed between the rotating seat and the fixed seat, and a stand column is fixed in the middle of the upper end of the rotating seat; the middle part of the tissue protector is provided with a preformed hole for the screw guide needle to penetrate through; whether the center of a positioning hole and the drilling position of a patient are located on the same center line or not is checked through light emitted by the three medical laser positioning lamps at the lower end of the abutting rod, after determination is completed, the alignment guiding process is completed, guiding is guaranteed to be conducted in the process that a screw guide needle is placed into the fracture part of the patient through guiding, and the positioning accuracy is improved. Due to the fact that the tissue protector is fixed by the guide hole and the positioning bolt, the screw guide needle is in a stable state and does not deviate in the process of being placed by medical staff.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a guide for inserting hollow nails in the ankle. Background Art

[0002] When performing foot and ankle joint fusion surgery, the physician needs to place the compression hollow screw in a reasonable position to ensure that the compression screw can exert a certain amount of pressure on the joint surface to promote joint fusion. This requires the physician to have good spatial perception and rich clinical experience.

[0003] In most cases, it is difficult for doctors to place the hollow nail in a reasonable position at one time. For this reason, it is often necessary to repeatedly insert the hollow nail guide needle during surgery and determine whether the position of the hollow nail is satisfactory through X-ray fluoroscopy. This prolongs the operation time and increases the amount of fluoroscopy and intraoperative bleeding. Therefore, the utility model proposes a guide for the insertion of hollow nails in the ankle to solve the problems existing in the prior art. Utility Model Content

[0004] In view of the above problems, the purpose of the present invention is to provide a guide for the insertion of hollow nails in the ankle. The guide for the insertion of hollow nails in the ankle solves the problem that in most cases, it is difficult for doctors to insert the hollow nails into a reasonable position at one time. For this reason, it is often necessary to repeatedly insert hollow nail guide needles during surgery, and determine whether the position of the hollow nail is satisfactory through X-ray fluoroscopy, which prolongs the operation time and increases the amount of fluoroscopy and intraoperative bleeding. Therefore, the present invention provides a guide for the insertion of hollow nails in the ankle to solve the problems existing in the prior art.

[0005] To achieve the purpose of the utility model, the utility model is implemented by the following technical solutions: a guide for inserting a hollow nail of an ankle, comprising a base, a rotating seat and a guide member, a fixed seat for mounting the rotating seat is fixed on the upper end of the base, an annular groove for rotating a ball is provided between the rotating seat and the fixed seat, and a column is fixed at the middle of the upper end of the rotating seat;

[0006] A groove for longitudinal movement of the lifting rod is provided on one side of the column, a first guide groove for longitudinal displacement of the first stud is provided in the middle of the lifting rod, a second stud for movable sleeve connection of the abutment rod is provided on one side of the first stud, a first nut is fixed in the middle of the first stud and the second stud, and the first stud and the second stud are arranged in the middle of the adjustment rod;

[0007] A guide hole for fixing the tissue protector is provided in the middle of the lower end of the resisting rod, a positioning bolt is threadedly connected to the side of the lower end of the resisting rod, and three reserved grooves for installing a medical laser positioning lamp are provided in a triangular shape at the bottom of the lower end of the resisting rod;

[0008] A reserved hole for the screw guide needle to pass through is provided in the middle of the tissue protector.

[0009] A further improvement is that a longitudinally movable top plate is provided in the middle of the base, a guide block is fixedly installed on one side of the top plate by screws, and the guide block is slidably connected to the guide rail in the middle of the base, a contact bolt is threadedly connected to the middle of the bottom end of the base, and the top of the contact bolt is rotatably connected to the top plate through a bearing.

[0010] A further improvement is that an anti-slip block is fixedly mounted on the upper end of the top plate and the middle top end of the base, an anti-slip groove is provided on the surface of the anti-slip block, and the anti-slip block itself is made of rubber material.

[0011] A further improvement is that a limit bolt is threadedly connected to one side of the fixed seat, and the end of the limit bolt abuts against the side wall of the rotating seat.

[0012] A further improvement is that a second guide groove for longitudinal movement of the third stud is provided on the other side of the column, and a second nut is threadedly connected to the third stud.

[0013] A further improvement is that a third guide groove is longitudinally penetrated through the middle of the adjusting rod for the movement of the lifting rod, the contact rod and the first nut, a sliding groove is transversely penetrated through the middle of the adjusting rod, and a moving block adapted to the sliding groove is provided inside the sliding groove.

[0014] A further improvement is that the moving block is symmetrically fixed to the front and rear ends of the first stud and the second stud.

[0015] The beneficial effects of the present invention are as follows: the present invention will utilize the light emitted by the three medical laser positioning lamps at the lower end of the interference rod to check whether the center of the positioning hole is on the same center line as the patient's drilling position. After the confirmation is completed, the alignment and guiding process will be completed. The guidance will ensure guidance during the process of inserting the screw guide needle into the patient's fracture site. Since the tissue protector is fixed by the guide hole and the positioning bolt, the medical staff will be in a stable state during the insertion of the screw guide needle and no position deviation will occur. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the main cross-sectional structure of the utility model.

[0017] Figure 2 The utility model is a schematic diagram of the combined parts structure of the end of the abutment rod, the guide hole and the medical laser positioning lamp.

[0018] Figure 3 for Figure 1 An enlarged schematic diagram of the structure of part A in FIG.

[0019] Figure 4 for Figure 1 An enlarged schematic diagram of the structure of part B in FIG.

[0020] Figure 5 It is a cross-sectional schematic diagram of the combined parts of the adjusting rod, the abutting rod, the first stud and the second stud in the utility model.

[0021] Figure 6 It is a schematic diagram of the component structure of the resistance rod in the utility model.

[0022] Figure 7 It is a schematic diagram of the structure of the combined parts of the second stud and the moving block in the utility model.

[0023] Among them: 1. base; 2. rotating seat; 3. fixed seat; 4. ball bearing; 5. column; 6. lifting rod; 7. first stud; 8. first guide groove; 9. interference rod; 10. first nut; 11. second stud; 12. tissue protector; 13. guide hole; 14. positioning bolt; 15. medical laser positioning light; 16. screw guide needle; 17. top plate; 18. guide block; 19. guide rail; 20. interference bolt; 21. anti-sliding block; 22. limit bolt; 23. third stud; 24. second guide groove; 25. second nut; 26. third guide groove; 27. slide groove; 28. moving block; 29. ​​adjustment rod. DETAILED DESCRIPTION

[0024] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with an embodiment. The embodiment is only used to explain the present invention and does not constitute a limitation on the protection scope of the present invention.

[0025] according to Figure 1 - Figure 7 As shown, this embodiment provides a guide for inserting a hollow nail in the ankle, comprising a base 1, a rotating base 2 and a guide member, a fixed base 3 for mounting the rotating base 2 is fixed on the upper end of the base 1, an annular groove for rotating a ball 4 is provided between the rotating base 2 and the fixed base 3, and a column 5 is fixed at the middle of the upper end of the rotating base 2;

[0026] A groove for longitudinal movement of the lifting rod 6 is provided on one side of the column 5, a first guide groove 8 for longitudinal displacement of the first stud 7 is provided in the middle of the lifting rod 6, a second stud 11 for movable sleeve connection of the abutment rod 9 is provided on one side of the first stud 7, a first nut 10 is fixed in the middle of the first stud 7 and the second stud 11, and the first stud 7 and the second stud 11 are arranged in the middle of the adjustment rod 29;

[0027] A guide hole 13 for fixing the tissue protector 12 is provided in the middle of the lower end of the resisting rod 9, a positioning bolt 14 is threadedly connected to the side of the lower end of the resisting rod 9, and three reserved grooves for installing a medical laser positioning lamp 15 are provided in a triangular shape at the bottom of the lower end of the resisting rod 9;

[0028] A reserved hole for the screw guide pin 16 to pass through is provided in the middle of the tissue protector 12. Considering that when a hollow nail is used to assist in the fixation of an avulsion fracture of the patient's ankle, it is difficult for doctors to place the hollow nail in a reasonable position at one time. Therefore, it is often necessary to repeatedly insert the hollow nail guide pin during surgery, and then use X-ray fluoroscopy to determine whether the position of the hollow nail is satisfactory. This prolongs the operation time, increases the amount of fluoroscopy and the amount of intraoperative bleeding. Therefore, the present application proposes a guide to assist the surgical process. When the medical staff determines the surgical position, the lifting rod 6, the adjustment rod 29 and the resistance rod 9 are used to adjust the use position of the guide hole 13. After the adjustment is completed, Fixed, during the adjustment process, the light emitted by the three medical laser positioning lights 15 at the lower end of the resistance rod 9 will be used to check whether the center of the positioning hole is on the same center line as the patient's drilling position. After confirmation, the alignment and guiding process will be completed. The guidance will ensure that the screw guide pin 16 is guided during the insertion of the patient's fracture site. Since the tissue protector 12 is fixed by the guide hole 13 and the positioning bolt 14, the medical staff will be in a stable state during the insertion of the screw guide pin 16 and no position deviation will occur. After the screw guide pin 16 accurately penetrates the fracture site, the screw guide pin 16 will be used for accurate guiding installation when the hollow drill bit is used to insert the hollow nail.

[0029] Taking into account that the device needs to be fixed on the operating table when in use, a longitudinally movable top plate 17 is provided in the middle of the base 1, and a guide block 18 is fixedly installed on one side of the top plate 17 by screws, and the guide block 18 is slidably connected to the guide rail 19 in the middle of the base 1, and a contact bolt 20 is threadedly connected to the middle of the bottom end of the base 1, and the top of the contact bolt 20 is rotatably connected to the top plate 17 through a bearing. The base 1 is clamped on the side of the operating table, and then the contact bolt 20 is tightened to make the top plate 17 rise to complete the fixing process of the base 1 and the operating table.

[0030] Taking into account that most operating tables have smooth surfaces, it is necessary to provide friction on the fixed surface to ensure stability when fixed. An anti-slip block 21 is fixedly installed on the upper end of the top plate 17 and the top of the middle part of the base 1. An anti-slip groove 27 is provided on the surface of the anti-slip block 21, and the anti-slip block 21 itself is made of rubber. The rubber anti-slip block 21 will increase the friction on the fixed surface.

[0031] Taking into account the uncertainty of the ankle hanging position, the column 5 needs to be able to rotate so as to complete the adjustment of the use orientation. One side of the fixed seat 3 is threadedly connected with a limit bolt 22, and the end of the limit bolt 22 is in contact with the side wall of the rotating seat 2. When adjusting the orientation, the limit bolt 22 will be loosened, and then the ball 4 can be used to complete the rotation of the rotating seat 2 inside the fixed seat 3, that is, the column 5 is adjusted in the horizontal orientation. After the adjustment is completed, the limit bolt 22 will be screwed back in to complete the fixing process.

[0032] Taking into account the uncertain position of the ankle fracture, the guide hole 13 is needed to complete the longitudinal height adjustment. A second guide groove 24 for the longitudinal movement of the third stud 23 is provided on the other side of the column 5, and a second nut 25 is threadedly connected to the third stud 23. The second nut 25 is loosened to raise and lower the use position of the lifting rod 6. After the adjustment is completed, the second nut 25 is tightened to complete the fixation.

[0033] Taking into account the distance between the column 5 and the patient's ankle when the device is in use, a third guide groove 26 is longitudinally penetrated in the middle of the adjusting rod 29 for the movement of the lifting rod 6, the interference rod 9 and the first nut 10, and a sliding groove 27 is transversely penetrated in the middle of the adjusting rod 29, and a moving block 28 adapted to the sliding groove 27 is provided inside the sliding groove 27. The first nut 10 on the second stud 11 can be loosened at the same time. Then, since the interference rod is no longer limited between the third guide groove 26 and the adjusting rod 29 by the first nut 10, the interference rod 9 can be horizontally moved along the direction of the moving groove to complete the adaptation adjustment of the distance.

[0034] The moving block 28 is symmetrically fixed at the front and rear ends of the first stud 7 and the second stud 11. The moving block 28 is arranged to move in the moving groove to adjust the use angle of the lifting rod 6 and the interference rod 9 sleeved on the outside of the first stud 7 and the second stud 11. The first nut 10 can be tightened after adjusting to the required angle, thereby completing the adjustment of the use angle of the lifting rod 6 and the adjusting rod 29 or the adjusting rod 29 and the interference rod 9.

[0035] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A guide for inserting a hollow nail in the ankle, comprising a base (1), a rotating seat (2) and a guide member, characterized in that: A fixed seat (3) for mounting the rotating seat (2) is fixed at the upper end of the base (1), an annular groove for the ball (4) to rotate is provided between the rotating seat (2) and the fixed seat (3), and a column (5) is fixed at the middle of the upper end of the rotating seat (2); A groove for longitudinal movement of the lifting rod (6) is provided on one side of the column (5); a first guide groove (8) for longitudinal displacement of the first stud (7) is provided in the middle of the lifting rod (6); a second stud (11) for movably sleeved by the abutment rod (9) is provided on one side of the first stud (7); a first nut (10) is fixed in the middle of the first stud (7) and the second stud (11); the first stud (7) and the second stud (11) are arranged in the middle of the adjustment rod (29); A guide hole (13) for fixing a tissue protector (12) is provided in the middle of the lower end of the abutment rod (9), a positioning bolt (14) is threadedly connected to the side of the lower end of the abutment rod (9), and three reserved grooves for installing a medical laser positioning lamp (15) are provided in a triangular shape at the bottom of the lower end of the abutment rod (9); A reserved hole for the screw guide needle (16) to pass through is provided in the middle of the tissue protector (12).

2. A guide for inserting a hollow nail in the ankle according to claim 1, characterized in that: A longitudinally movable top plate (17) is provided in the middle of the base (1), a guide block (18) is fixedly mounted on one side of the top plate (17) by means of screws, and the guide block (18) is slidably connected to a guide rail (19) in the middle of the base (1), a resisting bolt (20) is threadedly connected in the middle of the bottom end of the base (1), and the top of the resisting bolt (20) is rotatably connected to the top plate (17) via a bearing.

3. A guide for inserting a hollow nail in the ankle according to claim 2, characterized in that: The upper end of the top plate (17) and the middle top of the base (1) are both fixedly mounted with an anti-slip block (21), an anti-slip groove (27) is provided on the surface of the anti-slip block (21), and the anti-slip block (21) itself is made of rubber material.

4. The guide for inserting a hollow nail in the ankle according to claim 1, characterized in that: One side of the fixed seat (3) is threadedly connected to a limit bolt (22), and the end of the limit bolt (22) abuts against the side wall of the rotating seat (2).

5. The guide for inserting a hollow nail in the ankle according to claim 1, characterized in that: A second guide groove (24) for the longitudinal movement of the third stud (23) is provided on the other side of the upright column (5), and a second nut (25) is threadedly connected to the third stud (23).

6. The guide for inserting a hollow nail in the ankle according to claim 1, characterized in that: A third guide groove (26) is longitudinally penetrated in the middle of the adjusting rod (29) for the movement of the lifting rod (6), the abutting rod (9) and the first nut (10), and a sliding groove (27) is transversely penetrated in the middle of the adjusting rod (29), and a moving block (28) adapted to the sliding groove (27) is provided inside the sliding groove (27).

7. A guide for inserting a hollow nail in the ankle according to claim 6, characterized in that: The moving block (28) is symmetrically fixed at the front and rear ends of the first stud (7) and the second stud (11).

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