Orthopedic drill bit with locking structure

Abstract

The utility model discloses an orthopaedic drill bit with a locking structure, which comprises a connecting part, a drilling part is arranged on the connecting part, a plurality of groups of convex rings are uniformly arranged on the outer wall of the connecting part, and the convex rings and the connecting part are coaxially arranged; a locking sleeve is arranged on the outer wall of the connecting part, a plurality of groups of elastic locking plates are arranged on the locking sleeve, the locking sleeve sleeves the outer wall of the connecting part, so that the plurality of groups of elastic locking plates sleeve the outer wall of the connecting part, and the outer walls of the plurality of groups of elastic locking plates are sleeved with locking nuts; the locking structure has the advantages that when drilling is conducted, the maximum drilling depth can be visually seen by observing the position of the locking sleeve, too shallow or too deep drilling can be effectively avoided, normal operation is prevented from being affected, the locking structure can be conveniently detached, the locking structure can be conveniently installed and used on different orthopedic drill bits, and the locking structure is convenient to use and popularize. And the overall practicability is improved.

Description

Technical Field

[0001] The utility model relates to an orthopedic drill bit with a locking structure. Background Art

[0002] Orthopedics, also known as orthopedic surgery, is a medical specialty or discipline that specializes in the anatomy, physiology and pathology of the musculoskeletal system, using drugs, surgery and physical methods to maintain and develop the normal form and function of this system, as well as treat injuries and diseases of this system. When human bones are damaged by external forces, cracked or broken, which affects human movement or normal physiological activities, it is necessary to fix the bones or joints by drilling holes in the corresponding bone parts.

[0003] When drilling holes in corresponding bone parts, it is necessary to use an orthopedic punching machine in conjunction with an orthopedic drill bit. However, the existing orthopedic drill bits are not convenient for locking the drilling depth during use, and it is easy to cause the holes to be too deep or too shallow during drilling, affecting the normal treatment process. In view of this, the utility model proposes an orthopedic drill bit with a locking structure to solve the above problem. Utility Model Content

[0004] The purpose of the utility model is to provide an orthopedic drill bit with a locking structure to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] An orthopedic drill bit with a locking structure comprises a connecting portion, a drilling portion is arranged on the connecting portion, a plurality of groups of raised rings are evenly arranged on the outer wall of the connecting portion, and the raised rings are coaxially arranged with the connecting portion;

[0007] A locking sleeve is provided on the outer wall of the connecting part, and a plurality of groups of elastic locking plates are provided on the locking sleeve. The locking sleeve is sleeved on the outer wall of the connecting part, so that the plurality of groups of elastic locking plates are sleeved on the outer wall of the connecting part. The outer walls of the plurality of groups of elastic locking plates are sleeved with locking nuts, and the locking nuts make the plurality of groups of elastic locking plates in close contact with the raised ring.

[0008] As an improvement of the above technical solution, multiple groups of the elastic locking plates are arranged on the connecting portion in a ring array, and external thread walls are arranged on the outer walls of the multiple groups of the elastic locking plates;

[0009] The locking nut is threadedly connected to the external thread wall.

[0010] As an improvement of the above technical solution, a spacing groove is provided between every two groups of the elastic locking plates.

[0011] As an improvement of the above technical solution, a plurality of groups of raised arc blocks are provided on one side of the elastic locking plate facing the raised ring;

[0012] A plurality of groups of the raised arc-shaped blocks are evenly arranged on the elastic locking plate.

[0013] As an improvement of the above technical solution, the raised arc block is arranged between the two groups of raised rings, and the raised arc block is in contact with the two groups of raised rings.

[0014] As an improvement of the above technical solution, the wall thickness of the locking sleeve is smaller than the wall thickness of the elastic locking plate.

[0015] As an improvement of the above technical solution, a protective sleeve is rotatably provided on the outer wall of the locking sleeve, and a protective ring plate is provided on the protective sleeve.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] When the maximum drilling depth needs to be set during drilling, the locking sleeve is mounted on the outer wall of the connecting part, and the locking sleeve is manually turned to make the locking sleeve slide on the outer wall of the connecting part. When the specified drilling depth is reached, the displacement is stopped, so that multiple sets of elastic locking plates are set on the outer wall of the connecting part, and then the locking nut is mounted on the outer wall of the elastic locking plate so that the elastic locking plate is in close contact with the raised ring, so that the locking sleeve is locked on the outer wall of the connecting part. When drilling, the maximum drilling depth can be intuitively seen by observing the position of the locking sleeve, thereby completing the locking of the drilling depth, which can effectively avoid drilling that is too shallow or too deep, and avoid affecting the normal operation. In addition, the locking structure is easy to disassemble and is easy to install and use on different orthopedic drill bits, thereby improving the overall practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 It is a structural schematic diagram of the connection part of the utility model;

[0020] Figure 3 For this utility model Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0021] Figure 4 This is a schematic diagram of the structure of the locking sleeve of the utility model;

[0022] Figure 5 For this utility model Figure 4 A schematic diagram of the enlarged structure at B in the middle;

[0023] Figure 6 It is a front view of the protective cover of the utility model;

[0024] Figure 7 For this utility model Figure 6 Cross-sectional view of CC;

[0025] Figure 8 For this utility model Figure 7 Schematic diagram of the enlarged structure at D in the middle.

[0026] In the figure: 10, drilling part; 20, connecting part; 21, raised ring; 30, locking sleeve; 31, elastic locking plate; 311, external thread wall; 312, spacing groove; 313, raised arc block; 32, protective sleeve; 33, protective ring plate; 40, locking nut. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Example:

[0029] like Figure 1-8 As shown, this embodiment proposes an orthopedic drill bit with a locking structure, characterized in that: it includes a connecting portion 20, the connecting portion 20 is provided with a drilling portion 10, the outer wall of the connecting portion 20 is evenly provided with multiple groups of raised rings 21, and the raised rings 21 are coaxially arranged with the connecting portion 20;

[0030] A locking sleeve 30 is provided on the outer wall of the connecting portion 20, and a plurality of sets of elastic locking plates 31 are provided on the locking sleeve 30. The locking sleeve 30 is sleeved on the outer wall of the connecting portion 20, so that the plurality of sets of elastic locking plates 31 are sleeved on the outer wall of the connecting portion 20. The outer walls of the plurality of sets of the elastic locking plates 31 are sleeved with locking nuts 40, and the locking nuts 40 make the plurality of sets of elastic locking plates 31 in close contact with the raised ring 21.

[0031] In this embodiment, when the orthopedic drill is connected, the raised ring 21 is inserted into the connecting head of the bone drill. The raised ring 21 can increase the contact area and improve the stability of the connection.

[0032] When the specified drilling depth is reached, the displacement is stopped, so that multiple sets of elastic locking plates 31 are set on the outer wall of the connecting part 20, and then the locking nut 40 is sleeved on the outer wall of the elastic locking plate 31, so that the elastic locking plate 31 is in close contact with the raised ring 21, so that the locking sleeve 30 is locked on the outer wall of the connecting part 20. When drilling, the maximum drilling depth can be intuitively seen by observing the position of the locking sleeve 30, thereby completing the locking of the drilling depth, which can effectively avoid drilling too shallow or too deep, and avoid affecting the normal operation. In addition, the locking structure can be easily disassembled and installed on different orthopedic drill bits, thereby improving the overall practicality.

[0033] Specifically, the plurality of groups of elastic locking plates 31 are arranged on the connecting portion 20 in a ring array, and the outer walls of the plurality of groups of elastic locking plates 31 are provided with external thread walls 311;

[0034] The locking nut 40 is threadedly connected to the external thread wall 311 .

[0035] In this embodiment, when the locking sleeve 30 reaches the specified position, the locking nut 40 is threadedly sleeved on the external threaded wall 311. Through the cooperation between the set locking nut 40 and the external threaded wall 311, the multiple sets of elastic locking plates 31 are in close contact with the raised ring 21, thereby preventing the elastic locking plates 31 from sliding on the outside of the connecting part 20, thereby preventing the locking sleeve 30 from sliding on the outer wall of the connecting part 20.

[0036] Specifically, a spacing groove 312 is provided between every two groups of the elastic locking plates 31 .

[0037] In this embodiment, the spacing groove 312 can facilitate the elastic locking plate 31 to open outward, so that the elastic locking plate 31 can be displaced on the outer wall of the connecting portion 20 .

[0038] Specifically, the elastic locking plate 31 is provided with a plurality of groups of raised arc blocks 313 on one side facing the raised ring 21;

[0039] A plurality of groups of the raised arc-shaped blocks 313 are evenly arranged on the elastic locking plate 31 .

[0040] Specifically, the raised arc block 313 is disposed between the two groups of raised rings 21 , and the raised arc block 313 is in contact with the two groups of raised rings 21 .

[0041] In this embodiment, when the locking sleeve 30 reaches the specified position, the raised arc block 313 is inserted between the two raised rings 21 and then locked by the locking nut 40, which can effectively prevent the elastic locking plate 31 from slipping on the connecting part 20, thereby improving the stability of the connection between the locking sleeve 30 and the connecting part 20.

[0042] Specifically, the wall thickness of the locking sleeve 30 is smaller than the wall thickness of the elastic locking plate 31 .

[0043] In this embodiment, by making the wall thickness of the locking sleeve 30 smaller than the wall thickness of the elastic locking plate 31, when the locking sleeve 30 slides on the outer wall of the connecting portion 20, it is possible to avoid interference contact between the raised ring 21 and the inner wall of the locking sleeve 30, thereby affecting the normal displacement of the locking sleeve 30. When the elastic locking plate 31 is displaced on the outer wall of the connecting portion 20, since the elastic locking plate 31 is not locked, it can also be opened outwards, thereby facilitating its normal sliding adjustment position.

[0044] Specifically, a protective sleeve 32 is rotatably provided on the outer wall of the locking sleeve 30 , and a protective ring plate 33 is provided on the protective sleeve 32 .

[0045] In this embodiment, when drilling, the protective sleeve 32 can be supported by the staff to ensure the stability of the drill bit during drilling. At the same time, the protective sleeve 32 can also prevent the rotating locking sleeve 30 from contacting the drilling area and causing damage to the patient, thereby improving the overall practicality.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An orthopedic drill bit with a locking structure, characterized in that: It comprises a connecting portion (20), the connecting portion (20) being provided with a drilling portion (10), the outer wall of the connecting portion (20) being evenly provided with a plurality of groups of raised rings (21), the raised rings (21) being coaxially arranged with the connecting portion (20); A locking sleeve (30) is provided on the outer wall of the connecting portion (20), and a plurality of groups of elastic locking plates (31) are provided on the locking sleeve (30). The locking sleeve (30) is sleeved on the outer wall of the connecting portion (20), so that the plurality of groups of elastic locking plates (31) are sleeved on the outer wall of the connecting portion (20). Locking nuts (40) are sleeved on the outer walls of the plurality of groups of elastic locking plates (31), and the locking nuts (40) enable the plurality of groups of elastic locking plates (31) to be in close contact with the raised ring (21).

2. The orthopedic drill bit with a locking structure according to claim 1, characterized in that: A plurality of groups of elastic locking plates (31) are arranged on the connecting portion (20) in a ring array, and an external thread wall (311) is arranged on the outer wall of the plurality of groups of elastic locking plates (31); The locking nut (40) is threadedly connected to the external threaded wall (311).

3. The orthopedic drill bit with a locking structure according to claim 1, characterized in that: A spacing groove (312) is provided between every two groups of the elastic locking plates (31).

4. The orthopedic drill bit with a locking structure according to claim 1, characterized in that: A plurality of groups of raised arc-shaped blocks (313) are provided on one side of the elastic locking plate (31) facing the raised ring (21); A plurality of groups of the raised arc-shaped blocks (313) are evenly arranged on the elastic locking plate (31).

5. The orthopedic drill bit with a locking structure according to claim 4, characterized in that: The convex arc block (313) is arranged between the two groups of convex rings (21), and the convex arc block (313) is in contact with the two groups of convex rings (21).

6. The orthopedic drill bit with a locking structure according to claim 1, characterized in that: The wall thickness of the locking sleeve (30) is smaller than the wall thickness of the elastic locking plate (31).

7. The orthopedic drill bit with a locking structure according to claim 1, characterized in that: A protective sleeve (32) is rotatably provided on the outer wall of the locking sleeve (30), and a protective ring plate (33) is provided on the protective sleeve (32).

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