CN215384368U - Bone file switching device for hip joint - Google Patents

Abstract

The utility model relates to the technical field of auxiliary instruments for hip joint surgery, and provides a bone file switching device for a hip joint. An installation channel for the file rod to penetrate through is formed in the adaptor. The locking subassembly includes axle external member and locking piece, and the unblock subassembly is including twisting piece and impeller soon, and the impeller is twisted the rotation direction of piece and is moved in order to promote the locking piece in order to accomplish locking or unblock action, and the file pole is worn to locate the axle external member and is twisted the piece soon under the rotation drive of twisting the piece. The file pole inserts from the end that penetrates of the installation passageway of adaptor, and is worn out from the end that passes through again, and passes locking subassembly and unblock subassembly. Because the sleeve member of the locking assembly is fixed in the mounting passage, when the locking member locks the rasp rod, the rasp rod cannot move along the axial direction of the mounting passage, but can rotate around the axial direction of the mounting passage. Quick locking and unblock can be accomplished to whole use, greatly reduced file's the use degree of difficulty.

Description

Bone file switching device for hip joint

Technical Field

The utility model relates to the technical field of auxiliary instruments for hip joint surgery, and particularly provides a bone file switching device for a hip joint.

Background

Hip fractures are a very common type of fracture in clinic, with high incidence of fracture and surgical rate in all areas. Which is a common, but difficult form of surgery. When hip joint replacement surgery is carried out, accurate and reliable switching connection is needed to be carried out on the file and the mechanical arm, and most of the traditional implementation modes are manually positioned, so that the file cannot be quickly locked and unlocked.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a bone file mounting device for a hip joint, and aims to solve the problem that a file cannot be locked and unlocked quickly due to manual positioning in the conventional hip joint replacement operation.

In order to achieve the purpose, the utility model adopts the technical scheme that: a bone file switching device for hip joint is used for being connected with a file rod and comprises a switching piece, a locking assembly and an unlocking assembly, wherein an installation channel for the file rod to penetrate is formed in the switching piece, the installation channel is provided with an penetrating end and a penetrating end, the locking assembly comprises a shaft sleeve piece and a locking piece, the shaft sleeve piece is connected to the installation channel in a rotating mode around a shaft, the locking piece is arranged on the shaft sleeve piece and moves along the axial direction of the file rod to lock or unlock the file rod, the unlocking assembly comprises a screwing piece and a pushing piece, the screwing piece can rotate around the axial direction of the file rod and is movably connected to the penetrating end, the screwing piece is sleeved on the outer side of the shaft sleeve piece and is connected to the screwing piece, the pushing piece is driven by the rotating piece to move along the rotating direction of the file rod to push the locking piece to complete locking or unlocking action, the file pole is worn to be located the axle external member with revolve the piece of twisting.

In one embodiment, the sleeve member includes a sleeve body defining a first groove structure, the file shaft defines a second groove structure corresponding to the first groove structure, and the lock member includes a pin disposed in a direction parallel to a radial direction of the file shaft, the pin being capable of sliding into and out of the first groove structure and the second groove structure.

In one embodiment, the locking member includes a cover member covering the file holder and used for limiting the pin, the sleeve member includes a first spring, one end of the sleeve member is provided with a first rib structure, and the first spring covers the sleeve member and has two ends respectively abutting against the first rib structure and the cover member.

In one embodiment, the first groove structure is a guide chute, the second groove structure is an annular groove, the number of the pins is two, and the number of the guide chutes is two and symmetrically arranged on the sleeve body.

In one embodiment, the pushing member includes a tube body sleeved outside the sleeve body, and an end of the tube body away from the screw is provided with a second retaining structure, and the second retaining structure pushes the cover member when the tube body rotates around the shaft along with the screw.

In one embodiment, the side wall of the tube body is provided with a guide groove, and the screwing piece is provided with a limiting column which slides in the guide groove.

In one embodiment, the guide groove comprises an insertion groove section, a pushing groove section and a staying groove section which are communicated in sequence.

In one embodiment, the screwing piece comprises a connecting portion extending into the mounting channel and a screwing portion connected to the connecting portion and disposed outside the penetrating end, and the connecting portion is provided with the limiting column.

In one embodiment, the screwing element further comprises two limiting rods connected to the penetrating end along a radial direction parallel to the file rod, and the connecting part is provided with a ring groove matched with the two limiting rods.

In one embodiment, the hip bone file adaptor further comprises an extension tube inserted at the penetrating end of the adaptor.

The utility model has the beneficial effects that: the bone file switching device for the hip joint provided by the utility model has the working process as follows: the file rod is inserted from the penetrating end of the mounting channel of the adaptor and then penetrates out from the penetrating end, wherein the file rod needs to penetrate through the locking assembly and the unlocking assembly. Because the sleeve member of the locking assembly is fixed in the mounting passage, when the locking member locks the rasp rod, the rasp rod cannot move along the axial direction of the mounting passage, but can rotate around the axial direction of the mounting passage. Specifically, when the screwing piece rotates around the shaft anticlockwise, the pushing piece is driven to move away from the screwing piece, so that the locking piece moves along the axial direction of the file rod and away from the screwing piece, the file rod is locked and limited, and the file rod cannot freely move along the axial direction under the guidance of the installation channel; and, in a similar way, when the screwing piece is limited to rotate around the shaft clockwise, the pushing piece is driven to move in the opposite direction, so that the locking piece is driven to move away from the screwing piece along the axial direction of the file rod and towards the screwing piece, the locking on the file rod is released, and the file rod can move along the axial direction under the guidance of the installation channel. Therefore, in the locking state, the file rod is fixedly connected with the locking assembly, and the file rod cannot move along the axial direction of the mounting channel but rotates around the axial direction of the mounting channel to realize the file finishing action; under the unblock state, the file pole removes with the locking subassembly is connected, and the file pole removes along the axial direction of installation passageway and carries out the dismouting operation. Quick locking and unblock can be accomplished to whole use, greatly reduced file's the use degree of difficulty.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a cross-sectional view of a hip bone file adaptor provided in accordance with an embodiment of the present invention;

FIG. 2 is an exploded view of the hip bone file adaptor device according to the present invention;

FIG. 3 is a schematic view of the locking assembly of the hip bone file adaptor according to the present invention;

FIG. 4 is a schematic structural view of an unlocking assembly of the hip bone file adaptor device according to the present invention;

FIG. 5 is a schematic view of the structure of the shaft set of the hip-joint bone file adapter of the present invention

Fig. 6 is a schematic structural diagram of a pushing member of the hip-joint bone file switching device provided by the embodiment of the utility model.

Wherein, in the figures, the respective reference numerals:

the adaptor 10, the locking assembly 20, the unlocking assembly 30, the mounting channel 11, the penetrating end 11a, the penetrating end 11b, the sleeve member 21, the locking member 22, the screw member 31, the pushing member 32, the bearing 40, the sleeve member 211, the first groove structure 21a, the second groove structure 100a, the pin 221, the cover member 222, the first spring 23, the first rib structure 212, the tube 321, the second rib structure 322, the second spring 33, the guide groove 32a, the limit post 311, the insertion groove section 32a1, the pushing groove section 32a2, the staying groove section 32a3, the connecting part 312, the screw part 313, the limit rod 50, the ring groove 31a, the extension tube 60 and the rasp rod 100.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Referring to fig. 1 and 2, a bone file adaptor device for hip joint of the present application is used for connecting with a file rod 100, and includes an adaptor 10, a locking assembly 20 and an unlocking assembly 30, wherein the adaptor 10 has a mounting channel 11 for the file rod 100 to pass through, the mounting channel 11 has a penetrating end 11a and a penetrating end 11b, the locking assembly 20 includes a shaft set 21 rotatably connected in the mounting channel 11 around an axis and a locking member 22 disposed on the shaft set 21 and moving along an axial direction of the file rod 100 to lock or unlock the file rod 100, the unlocking assembly 30 includes a screwing member 31 capable of rotating around the axial direction of the file rod 100 and movably connected to the penetrating end 11b and a pushing member 32 disposed outside the shaft set 21 and connected to the screwing member 31, the pushing member 32 moves along a rotation direction of the file rod 100 under rotation of the screwing member 31 to push the locking member 22 to complete locking or unlocking, the file shaft 100 is inserted through the shaft sleeve 21 and the screw 31. Here, when the screwing member 31 is limited to rotate around the shaft counterclockwise, the pushing member 32 is driven to move away from the screwing member 31, so that the locking member 22 moves along the axial direction of the file rod 100 and away from the screwing member 31, and the file rod 100 is locked and limited, and the file rod 100 cannot move freely along the axial direction under the guidance of the installation channel 11; and, similarly, when the screw 31 is limited to rotate clockwise around the shaft, the pushing member 32 is driven to move towards each other, so that the locking member 22 is driven to move along the axial direction of the file rod 100 and towards the screw 31, so that the locking of the file rod 100 is released, and the file rod 100 can move along the axial direction under the guidance of the installation channel 11. Of course, the directions of rotation of the screw 31 to effect locking and unlocking may be reversed.

The bone file switching device for the hip joint provided by the utility model has the working process as follows: the rasp rod 100 is inserted through the penetrating end 11a of the mounting passage 11 of the adaptor 10 and then passes through the penetrating end 11b, wherein the rasp rod 100 passes through the locking assembly 20 and the unlocking assembly 30. Since the shaft member 21 of the locking assembly 20 is fixed in the mounting passage 11, when the locking member 33 locks the rasp rod 100, the rasp rod 100 cannot move in the axial direction of the mounting passage 11, but can rotate around the axial direction of the mounting passage 11. Specifically, when the screw 31 rotates counterclockwise around the shaft, the pushing member 32 is driven to move away from the screw 31, so that the locking member 22 moves along the axial direction of the file rod 100 and away from the screw 31, and the file rod 100 is locked and limited, and the file rod 100 cannot move freely along the axial direction under the guidance of the installation channel 11; and, similarly, when the screw 31 is restricted from rotating clockwise around the shaft, the pushing member 32 is driven to move towards each other, so that the locking member 22 is driven to move along the axial direction of the file rod 100 and towards the screw 31, so that the locking of the file rod 100 is released, and the file rod 100 can move along the axial direction under the guidance of the installation channel 11. Thus, in the locked state, the rasp rod 100 is fixedly connected with the locking assembly 20, and the rasp rod 100 cannot move along the axial direction of the mounting channel 11, but rotates around the axial direction of the mounting channel 11 to realize rasping action; in the unlocked state, the rasp rod 100 is disconnected from the locking assembly 20, and the rasp rod 100 is moved in the axial direction of the mounting passage 11 to perform the attaching and detaching operation. Quick locking and unblock can be accomplished to whole use, greatly reduced file's the use degree of difficulty.

Illustratively, the rasp rod 100 is operated in a locked state.

Referring to fig. 1 and 2, in one embodiment, the shaft sleeve 21 is fixedly connected to the mounting passage 11 of the adaptor 10 by a bearing 40, so that the file shaft 100 can move back and forth in the mounting passage 11 in the axial direction and rotate around the shaft. And, in the unlocked state, neither the rasp rod 100 nor the shaft set 21 can rotate about the shaft.

Referring to fig. 1 to 6, in one embodiment, the shaft assembly 21 includes a body 211, the body 211 defines a first groove structure 21a, the rod 100 defines a second groove structure 100a corresponding to the first groove structure 21a, and the locking member 22 includes a pin 221 disposed in a direction parallel to a radial direction of the rod 100, and the pin 221 can slide into or out of the first groove structure 21a and the second groove structure 100 a. It will be appreciated that when the sleeve body 211 is fitted over the file shaft 100, its first groove structure 21a corresponds to the second groove structure 100a, so that the pin 221 of the locking member 22 is wedged into both groove structures simultaneously, thereby locking the file shaft 100 against relative movement in the mounting passage 11. And, when the pin 221 is released from the two groove structures, the rasp rod 100 is unlocked.

Referring to fig. 1 to 6, in one embodiment, in order to limit and fix the pin 221, the locking member 22 includes a cover member 222 covering the file shaft 100 and used for limiting the pin 221, specifically, the cover member 222 is provided with a mounting groove, and the pin 221 is fixed in the mounting groove by an interference connection manner. The shaft sleeve 21 includes a first spring 23, a first rib structure 212 is disposed at one end of the sleeve 211, and the first spring 23 is sleeved on the sleeve 211 and two ends of the first spring 23 respectively abut against the first rib structure 212 and the cover 222. It will be appreciated that the first spring 23 is always compressed between the first rib structure 212 and the cover member 222, i.e. the cover member 222 is constantly pressed against, so that the pin 221 is always located in the second groove structure 100a in the locked state, and is prevented from accidentally sliding out of the second groove structure 100a under the action of external force. Meanwhile, when the unlocked state is shifted to the locked state, the first spring 23 can push the pin 221 in the cover 222 to slide into the second groove structure 100a, i.e., provide the pushing force required for the reset.

Preferably, please refer to fig. 1 to 5. The first groove structure 21a is a guide slope, where the slope direction of the guide slope forms an angle with the advancing moving direction of the rasp rod 100, where the advancing moving direction of the rasp rod 100 moves from the penetrating end 11a to the penetrating end 11b of the installation passage 11. The second groove structure 100a is an annular groove, the number of the pins 221 is two, the number of the guide chutes is two, and the guide chutes are symmetrically disposed on the set body 211. As can be appreciated, the two pins 221 slide symmetrically into the annular groove, making the force applied to the file shaft 100 in the axial direction more uniform.

Referring to fig. 1 to 6, in an embodiment, the pushing element 32 includes a tube 321 sleeved outside the sleeve 211, an end of the tube 321 away from the screw 31 is provided with a second retaining structure 322, and the second retaining structure 322 pushes the cover 222 when the tube 321 rotates around the screw 31. It will be appreciated that during the pivoting of screw 31 through the vehicle, second stop 322 of tubular body 321 pushes cap 222 toward screw 31, even though pin 221 is disengaged from second groove structure 100a, to achieve the structure. Preferably, a second spring 33 is further disposed between the second retaining structure 322 and the screw 31 for assisting the tube 321 to return quickly, so as to improve the mobility of the tube 321 away from the screw 31 when the screw 31 rotates around the shaft.

Referring to fig. 1 to 6, in an embodiment, a guide groove 32a is formed on a side wall of the tube 321, and the screw 31 is provided with a limit post 311 sliding in the guide groove 32 a. It can be understood that, during the rotation of the screw 31 around the shaft, the limiting column 311 moves in the guiding groove 32a, so as to drive the tube 321 towards or away from the screw 31.

Specifically, referring to fig. 1 to 6, the guide groove 32a includes an insertion groove section 32a1, a push groove section 32a2, and a stay groove section 32a3, which are sequentially connected. Here, the stopper 311 is inserted from the insertion groove 32a1 and is inserted into the push groove 32a2 by the rotation of the screw 31, it is understood that the push groove 32a2 is inclined in order to satisfy the movement of the pipe body 321 in the axial direction of the rasp rod 100, and finally, the stopper 311 is inserted into the stay groove 32a3 so that the interval between the pipe body 321 and the screw 31 is maintained constant.

Referring to fig. 1 to 6, in an embodiment, the screw 31 includes a connecting portion 312 extending into the mounting channel 11 and a screw portion 313 connected to the connecting portion 312 and disposed outside the penetrating end 11b, and the connecting portion 312 is provided with a limiting post 311. It can be understood that the screwing portion 313 is suitable for medical staff, and has a texture structure for holding by hand on the surface thereof, and the connecting portion 312 has a columnar structure, so as to meet the requirement that the pipe body 321 is not rubbed and collided during the rotation process.

Referring to fig. 1 to 6, in one embodiment, in order to ensure stability during the pivoting of the screw 31. The screwing member 31 further includes two position-limiting rods 50 connected to the penetrating end 11b along a radial direction parallel to the rasp rod 100, and the connecting portion 312 is provided with a ring groove 31a adapted to the two position-limiting rods 50. It can be understood that, in the process of the connecting portion 312 rotating around the shaft, and the two limiting rods 50 are clamped for limiting, in order to ensure the limiting precision, the connecting portion 312 is provided with a ring groove 31a for accommodating the limiting rods 50.

Referring to fig. 1 to 6, in one embodiment, the hip bone file adaptor further includes an extension tube 60, and the extension tube 60 is inserted into the penetrating end 11a of the adaptor 10. It can be understood that the extension tubes 60 with different length specifications are required to assist the extension tubes 100 with different axial extension lengths, so as to ensure the coaxiality of the file rod 100 during the movement process.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The utility model provides a bone file switching device for hip joint for be connected with the file pole, its characterized in that: including adaptor, locking subassembly and unblock subassembly, set up the confession in the adaptor the installation passageway that the file arbor wore to establish, the installation passageway has the end of wearing to put into and wear out the end, the locking subassembly including rotate around the axle connect in axle sleeve spare in the installation passageway and locate just follow on the axle sleeve spare the axial direction of file arbor removes with locking or unblock the locking piece of file arbor, the unblock subassembly including can around locate the axial rotation of file arbor and swing joint in wear out the end twist piece and overlap and locate the outside of axle sleeve spare and connect in twist the impeller of piece, the impeller in twist the rotation of piece and drive down the edge of twisting the rotation of piece the rotation direction of file arbor removes in order to promote locking piece or unblock action, the file arbor is worn to locate the axle sleeve spare with twist the piece.

2. The hip file adaptor device according to claim 1, wherein: the shaft sleeve comprises a sleeve body, a first groove structure is formed in the sleeve body, a second groove structure corresponding to the first groove structure is formed in the file rod, the locking piece comprises a pin which is parallel to the radial direction of the file rod, and the pin can slide into or be separated from the first groove structure and the second groove structure.

3. The hip file adaptor device according to claim 2, wherein: the locking piece is located including the cover of cover on the file cutter arbor and be used for spacingly the cover piece of round pin post, the axle sleeve piece includes first spring, the one end of the cover body is equipped with first flange structure, first spring cover is located on the cover body and both ends respectively the butt in first flange structure with the cover piece.

4. The hip file adaptor device according to claim 2, wherein: the first groove structure is a guide chute, the second groove structure is an annular groove, the number of the pins is two, the number of the guide chutes is two, and the guide chutes are symmetrically arranged on the component body.

5. The hip file adaptor device according to claim 3, wherein: the pushing piece comprises a pipe body sleeved on the outer side of the sleeve body, a second retaining structure is arranged at one end, away from the screwing piece, of the pipe body, and the second retaining structure pushes the cover piece when the pipe body rotates around the screwing piece along with the screwing piece.

6. The hip file adaptor device according to claim 5, wherein: the lateral wall of body has seted up the guide way, revolve to twist be equipped with on the piece in the spacing post that slides in the guide way.

7. The hip file adaptor device according to claim 6, wherein: the guide groove comprises an insertion groove section, a pushing groove section and a staying groove section which are sequentially communicated.

8. The hip file adaptor device according to claim 6, wherein: the screwing piece comprises a connecting part extending into the mounting channel and a screwing part connected to the connecting part and arranged outside the penetrating end, and the connecting part is provided with the limiting column.

9. The hip file adaptor device according to claim 8, wherein: the screwing piece further comprises two limiting rods which are connected to the penetrating end along the radial direction parallel to the file rod, and the connecting part is provided with annular grooves matched with the two limiting rods.

10. The hip file adaptor device according to any one of claims 1 to 9, wherein: the bone file switching device for the hip joint further comprises an extension pipe, and the extension pipe is inserted into the penetrating end of the switching piece.

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