CN213047146U

CN213047146U - Portable acetabular bone file

Info

Publication number: CN213047146U
Application number: CN202021304529.XU
Authority: CN
Inventors: 万黎; 沈崇
Original assignee: Changzhou Must Precision Tool Co ltd
Current assignee: Changzhou Must Precision Tool Co ltd
Priority date: 2020-07-06
Filing date: 2020-07-06
Publication date: 2021-04-27
Anticipated expiration: 2030-07-06

Abstract

The utility model relates to the technical field of medical equipment, in particular to a portable acetabulum file, which comprises an acetabulum file, a connecting rod, a clamping block, a pin shaft, a first spring, a second spring and a fixing sleeve, wherein the acetabulum file is provided with a fixing shaft for fixing, the fixing shaft is provided with a positioning column, the fixing sleeve and the second spring are both sleeved on the connecting rod, one end of the connecting rod is provided with a notch matched with the fixing shaft along the radial direction, the fixing shaft is arranged in the notch, one end of the fixing shaft, which is positioned in the notch, is provided with a positioning column along the axial direction of the connecting rod, one end of the connecting rod, which is positioned in the notch, is provided with a positioning groove matched with the positioning column, when in use, the fixing sleeve on the connecting rod is slid, so that the clamping block is controlled, the working efficiency is improved.

Description

Portable acetabular bone file

Technical Field

The utility model belongs to the technical field of the medical instrument technique and specifically relates to a portable acetabular bone file is related to.

Background

Artificial hip prosthesis replacement is an effective means of treating hip arthropathy, and in recent years, there has been an increasing number of patients undergoing artificial hip prosthesis acetabular cup replacement. In order to make the prosthesis installation more stable, the human acetabulum fossa must be ground to conform to the external dimension of the artificial prosthesis. The structure and the operation mode of the acetabular file holder also directly influence the clinical use effect after the operation, particularly, the clamping is firm, the operation is convenient, and the requirement for improving the operation precision is increased day by day.

The existing acetabular bone file and the extension rod are relatively complex in installation or disassembly, and are unstable in fixation, so that the phenomenon of shaking is easy to occur, the stability of the acetabular bone file in use is influenced on the one hand, and the working efficiency is also reduced on the other hand.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: in order to solve current acetabular bone file and connect the pole more loaded down with trivial details when installation or dismantlement, and fixed unstable the phenomenon of rocking appears easily, and stability when influencing acetabular bone file to use on the one hand, on the other hand has also reduced work efficiency's problem, provides a portable acetabular bone file now.

The utility model provides a technical scheme that its technical problem adopted is: a portable acetabular bone file comprises an acetabular bone file, a connecting rod, a clamping block, a pin shaft, a first spring, a second spring and a fixing sleeve, wherein the acetabular bone file is provided with a fixing shaft for fixing, the fixing shaft is provided with a positioning column, the fixing sleeve and the second spring are both sleeved on the connecting rod, one end of the connecting rod is provided with a notch matched with the fixing shaft along the radial direction thereof, the fixing shaft is arranged in the notch, one end of the fixing shaft, which is positioned in the notch, is provided with the positioning column along the axial direction of the connecting rod, one end of the connecting rod, which is positioned in the notch, is provided with a positioning groove matched with the positioning column, the positioning column is arranged in the positioning groove, the positioning column is provided with a ring groove along the circumferential direction thereof, the outer circumferential surface of the connecting rod is provided with a first sliding groove along, the first sliding groove is matched with the clamping block, the clamping block is arranged in the first sliding groove in a sliding manner, a limiting section, a guiding section and a moving section which are connected with each other are sequentially arranged on the contact surface of the fixing sleeve and the connecting rod, the limiting section is a plane and is in contact with one end of the clamping block, which is far away from the annular groove, so that the clamping block is always kept clamped in the annular groove, the guiding section is an inclined plane, the inclined plane is gradually inclined upwards from the connecting rod to the acetabular file, the moving section is also a plane, a gap is formed between the moving section and the clamping block, a second sliding groove is radially arranged at one end, which is in contact with the fixing sleeve, of the clamping block along the connecting rod, the pin shaft is arranged in the second sliding groove, the first spring is arranged between the second sliding groove and the pin shaft and enables the pin shaft to be in contact with the fixing sleeve all the time, one end of, and the connecting rod is provided with a limiting mechanism for limiting the displacement range of the fixed sleeve on the connecting rod.

The utility model discloses a fixed cover on the pole is connect in the slip to control fixture block card is established or is broken away from the ring channel on the reference column, just also realizes fixing the acetabular bone file or break away from the pole that connects, and easy operation can dismantle fast and install, has just also improved work efficiency.

For can realizing will fixed cover and second spring restriction connecting the pole on, furtherly, stop gear is including setting up spacing shoulder and the snap ring on connecting the pole, the snap ring is all established on connecting the pole, fixed cover and second spring all are located between spacing shoulder and the snap ring, keeping away from fixed cover one end of second spring is supported and is established on the snap ring, the one end that the second spring was kept away from to fixed cover is supported and is established on spacing shoulder. The fixed sleeve and the second spring are limited by the limiting shaft shoulder and the clamping ring on the extension rod.

Furthermore, a clamping groove matched with the clamping ring is formed in the connecting rod, and the clamping ring is clamped in the clamping groove.

The utility model has the advantages that: the utility model discloses portable acetabular bone file is when using, connect the fixed cover on the pole through sliding to control fixture block card is established or is broken away from the ring channel on the reference column, just also realize fixing the acetabular bone file or break away from and connect the pole, and easy operation can dismantle fast and install, has just also improved work efficiency, and it is more loaded down with trivial details when installing or dismantling to have avoided current acetabular bone file and connect the pole, and fixed unstable phenomenon of rocking appears easily, influence the stability of acetabular bone file when using on the one hand, and on the other hand has also reduced work efficiency's problem.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a front view of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1;

FIG. 3 is a front view of the acetabular file of the invention;

fig. 4 is a front view of the middle connecting rod of the present invention.

In the figure: 1. the acetabulum file, 2, connect the pole, 3, the fixture block, 4, the round pin axle, 5, first spring, 6, the second spring, 7, fixed cover, 8, the fixed axle, 9, the reference column, 10, the notch, 11, the constant head tank, 12, the ring channel, 13, first spout, 14, spacing section, 15, the direction section, 16, the activity section, 17, the second spout, 18, spacing shaft shoulder, 19, the snap ring, 20, the draw-in groove.

Detailed Description

The utility model discloses the following embodiment of combining does further detailing:

the utility model discloses not confine the following embodiment to, general technical personnel in this field can adopt other multiple embodiment to implement according to the utility model discloses a, perhaps all adopt the utility model discloses a design structure and thinking do simple change or change, all fall into the utility model discloses a protection scope. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. 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," "second," etc. 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 otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

As shown in fig. 1-4, a portable acetabular bone file comprises an acetabular bone file 1, a connecting rod 2, a fixture block 3, a pin shaft 4, a first spring 5, a second spring 6 and a fixing sleeve 7, wherein the acetabular bone file 1 is provided with a fixing shaft 8 for fixing, the fixing shaft 8 is provided with a positioning column 9, the fixing sleeve 7 and the second spring 6 are both sleeved on the connecting rod 2, one end of the connecting rod 2 is provided with a notch 10 matched with the fixing shaft 8 along the radial direction thereof, the fixing shaft 8 is arranged in the notch 10, one end of the fixing shaft 8 located in the notch 10 is provided with a positioning column 9 along the axial direction of the connecting rod 2, one end of the connecting rod 2 located in the notch 10 is provided with a positioning groove 11 matched with the positioning column 9, the positioning column 9 is arranged in the positioning groove 11, the positioning column 9 is provided with an annular groove 12 along the circumferential direction thereof, the outer, one end of the first sliding groove 13 extends inwards and is communicated with the positioning groove 11, the first sliding groove 13 is arranged corresponding to the annular groove 12, the first sliding groove 13 is matched with the fixture block 3, the fixture block 3 is arranged in the first sliding groove 13 in a sliding manner, a limiting section 14, a guiding section 15 and a moving section 16 which are mutually connected are sequentially arranged on the contact surface of the fixing sleeve 7 and the connecting rod 2, the limiting section 14 is a plane and is contacted with one end of the fixture block 3 away from the annular groove 12, so that the fixture block 3 is always kept clamped in the annular groove 12, the guiding section 15 is an inclined plane, the inclined plane is gradually inclined upwards from the connecting rod 2 to the acetabulum file 1, the moving section 16 is also a plane, a gap is arranged between the moving section 16 and the fixture block 3, a second sliding groove 17 is arranged at one end of the fixture block 3 contacted with the fixing sleeve 7 along the radial direction of the connecting rod 2, and the pin shaft, the first spring 5 is arranged between the second chute 17 and the pin shaft 4, the pin shaft 4 is always in contact with the fixed sleeve 7, one end of the fixed sleeve 7 is abutted against the second spring 6, the limit section 14 on the fixed sleeve 7 is always in contact with the clamping block 3, and the connecting rod 2 is provided with a limit mechanism for limiting the displacement range of the fixed sleeve 7 on the connecting rod 2.

Stop gear is including setting up spacing shoulder 18 and the snap ring 19 on connecing pole 2, snap ring 19 all establishes on connecing pole 2, fixed cover 7 and second spring 6 all are located between spacing shoulder 18 and the snap ring 19, the fixed cover 7 one end of keeping away from of second spring 6 supports and establishes on snap ring 19, the one end that second spring 6 was kept away from to fixed cover 7 supports and establishes on spacing shoulder 18.

The extension rod 2 is provided with a clamping groove 20 matched with the clamping ring 19, and the clamping ring 19 is clamped in the clamping groove 20.

When the portable acetabular file is installed, firstly, the positioning shaft on the acetabular file 1 is inserted in alignment with the positioning groove 11 on the connecting rod 2, the fixing shaft 8 is inserted in alignment with the notch 10, then the fixing sleeve 7 is pulled down, the second spring 6 is compressed, the pin shaft 4 and the fixture block 3 in the second sliding groove 17 on the fixture block 3 both displace towards the movable section 16 through the limiting section 14, the pin shaft 4 slides in the second sliding groove 17, and the pin shaft is always in contact with the fixing sleeve 7 under the action of the first spring 5, when the pin shaft 4 is in contact with the movable section 16, a gap is formed between the fixture block 3 and the movable section 16, the fixture block 3 is still in a clamping state under the action of the first spring 5, when the positioning column 9 is in contact with the fixture block 3, the positioning column 9 pushes the fixture block 3 to displace in the first sliding groove 13, when the annular groove 12 is in alignment with the fixture block 3, the fixture block 3 is clamped in the annular groove 12 under the action, the fixing sleeve 7 is loosened, the fixing sleeve 7 is restored to the initial position under the action force of the second spring 6, namely the fixture block 3 is displaced from the movable section 16 to the limiting section 14, the pin shaft 4 is displaced in the second sliding groove 17, and the acetabular file 1 is mounted on the connecting rod 2;

during maintenance, the fixing sleeve 7 is pulled down, the second spring 6 is compressed, the pin shaft 4 and the fixture block 3 in the second sliding groove 17 on the fixture block 3 both move towards the movable section 16 through the limiting section 14, the pin shaft 4 slides in the second sliding groove 17 and is always kept in contact with the fixing sleeve 7 under the action of the first spring 5, when the pin shaft 4 is in contact with the movable section 16, a gap is formed between the fixture block 3 and the movable section 16, the fixture block 3 is still in a clamping state under the action of the first spring 5, the file acetabulum 1 is pulled out, the positioning column 9 pushes the fixture block 3 to move in the first sliding groove 13 until the fixture block 3 is separated from the annular groove 12, and the detachment of the acetabulum file 1 on the extension rod 2 is completed.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. The utility model provides a portable acetabular bone file which characterized in that: comprises an acetabulum file (1), a connecting rod (2), a clamping block (3), a pin shaft (4), a first spring (5), a second spring (6) and a fixing sleeve (7), wherein the acetabulum file (1) is provided with a fixing shaft (8) for fixing, the fixing shaft (8) is provided with a positioning column (9), the fixing sleeve (7) and the second spring (6) are both sleeved on the connecting rod (2), one end of the connecting rod (2) is provided with a notch (10) matched with the fixing shaft (8) along the radial direction thereof, the fixing shaft (8) is arranged in the notch (10), one end of the fixing shaft (8) positioned at the notch (10) is provided with the positioning column (9) along the axial direction of the connecting rod (2), one end of the connecting rod (2) positioned at the notch (10) is provided with a positioning groove (11) matched with the positioning column (9), and the positioning column (9), the positioning post (9) is provided with an annular groove (12) along the circumferential direction, the outer circumferential surface of the connecting rod (2) is provided with a first sliding groove (13) along the radial direction, one end of the first sliding groove (13) extends inwards and is communicated with the positioning groove (11), the first sliding groove (13) and the annular groove (12) are correspondingly arranged, the first sliding groove (13) is matched with the clamping block (3), the clamping block (3) is arranged in the first sliding groove (13) in a sliding manner, the contact surface of the fixing sleeve (7) and the connecting rod (2) is sequentially provided with a limiting section (14), a guiding section (15) and a movable section (16) which are mutually connected, the limiting section (14) is a plane and is contacted with one end of the clamping block (3) far away from the annular groove (12), so that the clamping block (3) is always kept clamped in the annular groove (12), and the guiding section (15) is an inclined plane, the inclined surface is gradually inclined upwards from the connecting rod (2) to the acetabulum file (1), the movable section (16) is also a plane, a gap is arranged between the movable section (16) and the clamping block (3), a second sliding groove (17) is arranged at one end of the clamping block (3) which is contacted with the fixing sleeve (7) along the radial direction of the connecting rod (2), the pin shaft (4) is arranged in the second sliding groove (17), the first spring (5) is arranged between the second sliding groove (17) and the pin shaft (4) and enables the pin shaft (4) to be always contacted with the fixed sleeve (7), one end of the fixed sleeve (7) is abutted against the second spring (6), and the limit section (14) on the fixed sleeve (7) is always kept in contact with the clamping block (3), the connecting rod (2) is provided with a limiting mechanism for limiting the displacement range of the fixing sleeve (7) on the connecting rod (2).

2. The portable acetabular file of claim 1, wherein: stop gear is including setting up spacing shoulder (18) and snap ring (19) on connecing pole (2), snap ring (19) are all established on connecing pole (2), fixed cover (7) and second spring (6) all are located between spacing shoulder (18) and snap ring (19), keeping away from fixed cover (7) one end of second spring (6) is supported and is established on snap ring (19), the one end that second spring (6) were kept away from in fixed cover (7) is supported and is established on spacing shoulder (18).

3. The portable acetabular file of claim 2, wherein: the connecting rod (2) is provided with a clamping groove (20) matched with the clamping ring (19), and the clamping ring (19) is clamped in the clamping groove (20).