Orthopedic surgery drilling device

Abstract

The utility model discloses an orthopedic surgery driller which comprises a drill body and a blocking piece arranged on the drill body in a sleeved mode, the blocking piece is used for abutting against cartilage or bone to limit the drilling depth of the drill body, a groove is formed in the drill body, a positioning groove corresponding to the groove is correspondingly formed in the blocking piece, and the drill further comprises a positioning piece. The positioning piece is configured to be capable of being activated and clamped into the groove and the positioning groove at the same time so that the gear piece can be limited to the drill body. Compared with the prior art, the drilling depth can be accurately controlled, and the risk of injury and fracture to a patient is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of orthopedic surgery drillers, belong to medical instrument field. BACKGROUND

[0002] At present, in orthopedic surgery, commonly used drilling tools include manual drill and pistol drill type drill, both of which rely on the experience of doctors to drill, and there are limitations in the control of drilling depth, so it is easy to exceed the expected drilling depth during this drilling process.

[0003] Therefore, it is necessary to improve the existing drill to solve the above problems. SUMMARY

[0004] To solve the above technical problems, the utility model provides a kind of orthopedic surgery drillers, the orthopedic surgery driller can accurately control drilling depth, avoid the risk of causing harm and fracture to patient.

[0005] The technical scheme of the utility model is:

[0006] A kind of orthopedic surgery driller, including drill body and the stop piece of being set on the drill body, the stop piece is used to abut soft bone or bone to limit the drilling depth of the drill body, the drill body is equipped with recess, the stop piece is equipped with the positioning slot corresponding with the recess opposite position, the drill still includes positioning piece, the positioning piece is configured to be activated while being inserted into the recess and the positioning slot, to limit the stop piece on the drill body.

[0007] As a further improvement of the utility model, the stop piece is also provided with an assembly groove in communication with the positioning slot, the positioning slot is annularly arranged on the outer surface of the stop piece, the positioning piece includes a pressing portion and a clamping portion connected to each other, the pressing portion is partially assembled in the assembly groove, the clamping portion is received in the positioning slot, the clamping portion is adapted to the shape of the positioning slot to be annularly arranged on the outer periphery of the drill body.

[0008] As a further improvement of the utility model, the pressing portion includes a button and a positioning column extending perpendicular to the button, the positioning column at least partially extends into the assembly groove, so that the button is exposed to the outside of the stop piece, the positioning column is connected to the clamping portion, when the button moves away from the stop piece, the clamping portion moves from the positioning slot towards the recess to be clamped into the recess.

[0009] As a further improvement of the utility model, the outer periphery of the positioning column is sleeved with an elastic member, one end of the elastic member abuts against the blocking member, the other end abuts against the button, the elastic member has a normal state and a deformed state, when the elastic member is in the normal state, the button is away from the blocking member, and the clamping portion is clamped into the groove from the positioning groove; when the elastic member is in the deformed state, the button is close to the blocking member, and the clamping portion is located in the positioning groove.

[0010] As a further improvement of the utility model, the groove is provided with a plurality of grooves, which are arranged in the extension direction of the drill body, and the blocking member can be selectively moved to the relative position of the positioning groove and one of the grooves to activate the positioning member to limit the blocking member on the drill body.

[0011] As a further improvement of the utility model, the shapes of the assembly groove and the positioning groove are not matched, so as to limit the movement of the positioning column from the assembly groove to the positioning groove.

[0012] As a further improvement of the utility model, the assembly groove is a cross groove, the positioning column comprises a first column body and a second column body which are cross staggered, the first column body can be partially clamped into the positioning groove, the second column body limits the depth of the first column body clamped into the positioning groove, and the clamping portion is connected with the first column body.

[0013] As a further improvement of the utility model, in the height direction of the positioning column, the upper surface of the clamping portion is higher than the lower surface of the positioning column, and the vertical distance between the upper surface of the clamping portion and the lower surface of the positioning column is greater than or equal to the depth of the groove.

[0014] As a further improvement of the utility model, the outer surfaces of the blocking member and the positioning member are smooth surfaces.

[0015] As a further improvement of the utility model, the blocking member comprises a blocking base body and a blocking plate which are connected in sequence along the drilling direction of the drill body, the blocking plate is used for abutting against cartilage or bone to limit the drilling depth of the drill body, and the positioning groove is arranged on the blocking base body.

[0016] The utility model discloses a kind of orthopedic surgery drillers, by being provided with groove on drill body, corresponding positioning groove of relative position of groove is set on blocking member, the driller further includes positioning member, positioning member is configured to be activated simultaneously clamped into groove and positioning groove, to limit blocking member on drill body, so, by locking blocking member on drill body, it can be accurately controlled drilling depth when surgery, avoid the risk of causing harm and fracture to patient. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a structural schematic view of a drilling device for orthopedic surgery according to the preferred embodiment of the present application.

[0018] Figure 2 is Figure 1 is a structural schematic view of a drilling body.

[0019] Figure 3 is Figure 1 is a structural schematic view of a positioning member and a stop member.

[0020] Figure 4 is Figure 3 is a structural schematic view of a positioning member.

[0021] Figure 5 is Figure 3 is a structural schematic view of a stop member. DETAILED DESCRIPTION

[0022] In order to more clearly understand the technical means of the present application, and can be implemented according to the content of the specification, the following embodiments, the specific embodiments of the present application are further described in detail, the following examples are used to illustrate the present application, but not to limit the scope of the present application.

[0023] Please refer to Figures 1 to 5 The present application discloses a drilling device for orthopedic surgery 100, including drill body 1 and the stop member 2 of the drill body 1, the stop member 2 is used for abutting soft tissue or bone to limit the drilling depth of the drill body 1, the drill body 1 is provided with recess 11, the stop member 2 is provided with positioning groove 21 corresponding to the position of recess 11, the shape of the recess 11 and the positioning groove 21 is adapted. The drilling device 100 further comprises a positioning member 3, the positioning member 3 is configured to be activated at the same time and is clamped into the recess 11 and the positioning groove 21, so as to limit the stop member 2 on the drill body 1. In this way, by locking the stop member 2 on the drill body 1, the drilling depth can be accurately controlled during the operation, and the risk of injury and fracture of the patient is avoided.

[0024] Specifically, the stop member 2 includes stop base body 22 and baffle 23 connected in turn along the drilling direction of the drill body 1, the baffle 23 is used for abutting soft tissue or bone to limit the drilling depth of the drill body 1, the positioning groove 21 is arranged on the stop base body 22. Preferably, the stop base body 22 is substantially cylindrical, so as to be sleeved on the outer periphery of the drill body 1, in the drilling direction of the drill body 1, the stop base body 22 can be projected onto the baffle 23.

[0025] After the gear 2 is limited on the drill body 1 by the positioning member 3, the operation is started. During the operation, the gear and the positioning member 3 rotate synchronously with the drill body 1. Therefore, the outer surfaces of the gear base 22, the gear plate 23 and the positioning member 3 are all smooth surfaces without any sharp edges.

[0026] Preferably, the recesses 11 are provided in plurality and are arranged along the extending direction of the drill body 1. The gear 2 can be selectively moved to a position where one of the recesses 11 is opposite to the positioning groove 21, so as to activate the positioning member 3 to limit the gear 2 on the drill body 1. In this way, different depths can be controlled according to different operation requirements, and the recesses 11 arranged on the drill body 1 will not affect the drilling quality.

[0027] The gear 2 is further provided with an assembly groove 24 which is in communication with the positioning groove 21. The positioning groove 21 is annularly arranged on the outer surface of the gear 2. The positioning member 3 comprises a pressing part 31 and a clamping part 32 which are connected to each other. The pressing part 31 is partially assembled in the assembly groove 24. The clamping part 32 is received in the positioning groove 21. The clamping part 32 is adapted to the shape of the positioning groove 21, so as to be annularly arranged on the outer periphery of the drill body 1.

[0028] In the embodiment, the clamping part 32 is a clamping hook which is adapted to the shape of the positioning groove 21. Therefore, when the clamping part 32 is received in the positioning groove 21, it can also be annularly arranged on the outer periphery of the drill body 1, so as to limit the gear 2 between the clamping part 32 and the drill body 1.

[0029] The pressing part 31 comprises a button 311 and a positioning column 312 which extends perpendicularly to the button 311. The positioning column 312 is at least partially inserted into the assembly groove 24, so that the button 311 is exposed to the outside of the gear 2. The positioning column 312 is connected to the clamping part 32. When the button 312 is moved away from the gear 2, the clamping part 32 is moved from the positioning groove 21 towards the recess 11 and is clamped in the recess 11.

[0030] Preferably, in the height direction of the positioning column 312, the upper surface of the clamping part 32 is higher than the lower surface of the positioning column 312. The vertical distance between the upper surface of the clamping part 32 and the lower surface of the positioning column 312 is greater than or equal to the depth of the recess 11. In this way, it can be ensured that the positioning column 312 is at least partially received in the assembly groove 24 at all times, so as to avoid deviation. Of course, in other embodiments, the button 312 can be moved away from the gear 2 to expose the positioning column 312 to the outside of the assembly groove 24, which is not limited in this regard.

[0031] The assembly groove 24 and the positioning groove 21 are not matched in shape, so as to limit the positioning column 312 from moving from the assembly groove 24 into the positioning groove 21. In this way, the pressing part 31 is limited in position, avoiding the influence on use after the deviation.

[0032] Preferably, the assembly groove 24 is a cross groove, the positioning column 312 includes a first column body 3121 and a second column body 3122 which are cross staggered, the first column body 3121 can be partially clamped into the positioning groove 21, the second column body 3122 limits the depth of the first column body 3121 clamped into the positioning groove 21, and the clamping part 32 is connected with the first column body 3121. In other words, the first column body 3121 and the clamping part 32 extend in the same direction, both extending towards the positioning groove 21, so that the clamping part 32 can be partially clamped into the positioning groove 21 while being accommodated in the positioning groove 21, and the second column body 3122 is arranged perpendicularly to the first column body 3121, so as to limit the positioning column 312 in the assembly groove 24.

[0033] The positioning column 312 is sleeved with an elastic member (not shown), one end of the elastic member abuts against the blocking part 2, and the other end abuts against the button 311, the elastic member has a normal state and a deformed state, when the elastic member is in the normal state, the button 311 is away from the blocking part 2, and the clamping part 32 is clamped into the groove 11 from the positioning groove 21; when the elastic member is in the deformed state, the button 311 is close to the blocking part 2, and the clamping part 32 is located in the positioning groove 21. In other words, by pressing the button 311, the clamping part 32 is separated from the groove 11, so as to be accommodated in the positioning groove 21, and then the blocking part 2 is separated from the drill body 1, so as to be moved along the extension direction of the drill body 1. Then, according to the actual needs, one groove 11 on the drill body 1 is selected, and then the button 311 is released, the clamping part 32 is clamped into the groove 11 again by the elastic reset of the elastic member, so as to drill.

[0034] Of course, in other embodiments, the positioning part 3 and the blocking part 2 can be replaced by an arc-shaped blocking piece, the blocking piece is preferably made of elastic material, so as to be fixed on the drill body 1, but in this way, when the clamped groove 11 is replaced, it is not flexible enough and requires a user to use a larger force.

[0035] In summary, the utility model discloses a kind of orthopedic surgery drill 100 is passed through being set in recess 11 on drill body 1, corresponding setting and the recess 11 opposite position positioning groove 21 on stop piece 2, the drill 100 also includes positioning piece 3, positioning piece 3 is configured to be activated while being inserted into the recess 11 and the positioning groove 21, to limit the stop piece 2 on the drill body 1, in this way, by locking the stop piece 2 on the drill body 1, it can be accurate control drilling depth when operation, avoid the risk of causing harm and fracture to patient.

[0036] The above is only the preferred embodiment of the utility model, and is not used to limit the utility model, it should be pointed out that, for ordinary skilled person in the prior art, without departing from the technical principle of the utility model, can make a number of improvements and variations, these improvements and variations also should be regarded as the protection scope of the utility model.

Claims

1. An orthopedic surgical drill, comprising: The drill (1) is provided with a recess (11), and the stop piece (2) is correspondingly provided with a positioning groove (21) opposite to the recess (11), the drill (100) further comprises a positioning piece (3), the positioning piece (3) is configured to be activated and clamped into the recess (11) and the positioning groove (21) at the same time, so as to limit the stop piece (2) on the drill (1).

2. The orthopedic surgical drill according to claim 1, wherein, The stop piece (2) is further provided with an assembly groove (24) in communication with the positioning groove (21), the positioning groove (21) is annularly arranged on the outer surface of the stop piece (2), the positioning piece (3) comprises a pressing part (31) and a clamping part (32) connected with each other, the pressing part (31) is partially assembled in the assembly groove (24), and the clamping part (32) is accommodated in the positioning groove (21), the clamping part (32) is adapted to the shape of the positioning groove (21) to be annularly arranged on the outer periphery of the drill (1).

3. The orthopedic surgical drill according to claim 2, wherein, The pressing part (31) comprises a button (311) and a positioning column (312) extending perpendicularly to the button (311), the positioning column (312) is at least partially inserted into the assembly groove (24), so that the button (311) is exposed to the outside of the stop piece (2), the positioning column (312) is connected with the clamping part (32), when the button (311) moves away from the stop piece (2), the clamping part (32) moves from the positioning groove (21) to the recess (11) to be clamped into the recess (11).

4. The orthopedic surgical drill according to claim 3, wherein, The outer periphery of the positioning column (312) is sleeved with an elastic piece, one end of the elastic piece abuts against the stop piece (2), and the other end abuts against the button (311), the elastic piece has a normal state and a deformed state, when the elastic piece is in the normal state, the button (311) is away from the stop piece (2), and the clamping part (32) is clamped into the recess (11) from the positioning groove (21); when the elastic piece is in the deformed state, the button (311) is close to the stop piece (2), and the clamping part (32) is located in the positioning groove (21).

5. The orthopedic surgical drill of claim 1, wherein, The recess (11) is provided with a plurality of recesses arranged in the extension direction of the drill (1), and the stop piece (2) can be selectively moved to a position opposite to one of the recesses (11) to activate the positioning piece (3) to limit the stop piece (2) on the drill (1).

6. The orthopedic surgical drill of claim 3, wherein, The shapes of the assembly groove (24) and the positioning groove (21) are not matched with each other, so as to limit the positioning column (312) from moving from the assembly groove (24) to the positioning groove (21).

7. The orthopedic surgical drill according to claim 6, wherein, The assembling groove (24) is a cross groove, the positioning column (312) comprises a first column body (3121) and a second column body (3122) which are cross staggered, the first column body (3121) can be partially clamped into the positioning groove (21), the second column body (3122) limits the clamping depth of the first column body (3121) into the positioning groove (21), and the clamping part (32) is connected with the first column body (3121).

8. The orthopedic surgical drill according to claim 3, wherein, In the height direction of the positioning column (312), the upper surface of the clamping part (32) is higher than the lower surface of the positioning column (312), and the vertical distance between the upper surface of the clamping part (32) and the lower surface of the positioning column (312) is greater than or equal to the depth of the recess (11).

9. The orthopedic surgical drill according to claim 1, wherein, The outer surfaces of the gear part (2) and the positioning part (3) are both smooth surfaces.

10. The orthopedic surgical drill according to claim 1, wherein, The gear part (2) comprises a gear base body (22) and a gear plate (23) which are connected in sequence along the drilling direction of the drill body (1), the gear plate (23) is used for abutting against cartilage or bone to limit the drilling depth of the drill body (1), and the positioning groove (21) is arranged on the gear base body (22).

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