CN213641158U

CN213641158U - Outer cup driver

Info

Publication number: CN213641158U
Application number: CN202021879377.6U
Authority: CN
Inventors: 胡肖强; 李文钊; 王梦
Original assignee: Beijing Naton Medical Technology Holdings Co Ltd
Current assignee: Beijing Naton Medical Technology Holdings Co Ltd
Priority date: 2020-09-01
Filing date: 2020-09-01
Publication date: 2021-07-09
Anticipated expiration: 2030-09-01

Abstract

The utility model discloses an outer cup driver, which comprises a body, a connecting block and a first pin shaft, wherein the connecting block is arranged on the body and is provided with a mounting hole and a first pin hole, and at least part of the first pin hole is coincided with the mounting hole; the first end of the guide rod is rotatably matched in the mounting hole, and the first end of the guide rod is provided with a guide groove; the first pin shaft is rotatably matched in the first pin hole, and a part of the first pin shaft is matched in the guide groove to limit the guide rod to move and rotate. According to the utility model discloses ware is strikeed into to outer cup, the connected mode of guide bar and body is simple, the good reliability, and simple to operate, can effectively practice thrift operating time, raises the efficiency, and the structure of mounting hole and first pinhole can reduce the clean sterilization degree of difficulty, and the practicality is strong.

Description

Outer cup driver

Technical Field

The utility model belongs to the technical field of the medical instrument technique and specifically relates to an outer cup impactor is related to.

Background

In an orthopedic surgery, for example, in a hip joint outer cup surgery, a surgeon is required to use an outer cup driver to place an implant into a patient, guide mechanisms are arranged on the outer cup driver and used for judging the position of implantation of a prosthesis, in the related art, the guide mechanisms are detachably connected with the outer cup driver and are mostly in threaded connection, but the mode of threaded connection is adopted, a screw needs to be rotated for many times in the installation process, time and labor are wasted, and the threaded structure is not convenient to clean and sterilize.

SUMMERY OF THE UTILITY MODEL

The present invention aims at solving at least one of the technical problems in the related art to a certain extent.

Therefore, the embodiment of the utility model provides an outer cup impactor, the connected mode of guide bar and body is simple reliable, and it is convenient to dismantle.

The outer cup driver comprises a body, a connecting block and a first pin shaft, wherein the connecting block is arranged on the body and is provided with a mounting hole and a first pin hole, and at least part of the first pin hole is overlapped with the mounting hole; the first end of the guide rod is rotatably matched in the mounting hole, and the first end of the guide rod is provided with a guide groove; the first pin shaft is rotatably matched in the first pin hole, and a part of the first pin shaft is matched in the guide groove to limit the guide rod to move and rotate.

According to the utility model discloses ware is strikeed into to outer cup sets up the guide way on the guide bar to through first round pin axle and guide way complex mode, reach restriction guide bar removal and pivoted purpose, the simple structure of guide bar and first round pin axle, the good reliability, and simple to operate can effectively practice thrift operating time, raises the efficiency, and the structure of mounting hole and first pinhole can reduce the clean sterilization degree of difficulty, and the practicality is strong.

In some embodiments, the first pin is provided with a first groove, the first pin is rotatable between a passing position where the first groove is open toward the guide bar and a bottom surface of the first groove is parallel to an axial direction of the guide bar, and the guide bar is movable and rotatable along the mounting hole; in the other positions, the first pin shaft limits the movement and rotation of the guide rod.

In some embodiments, the first pin has an annular groove extending along a circumferential direction thereof, the connecting block is provided with a second pin hole, at least a portion of the second pin hole coincides with the first pin hole, the outer cup impactor further comprises a second pin, the second pin fits in the second pin hole, and a portion of the second pin fits in the annular groove to limit axial movement of the first pin along the first pin.

In some embodiments, the guide groove includes a first guide groove and a second guide groove, an opening direction of the first guide groove and an opening direction of the second guide groove have an included angle therebetween, and a portion of the first pin is fitted in one of the first guide groove and the second guide groove to restrict the guide bar from moving and rotating.

In some embodiments, the included angle is 40 degrees.

In some embodiments, the guide bar comprises a first bar segment and a second bar segment, the first bar segment and the second bar segment having an included angle therebetween, and a first end of the first bar segment is fitted within the mounting hole.

In some embodiments, the angle between the length direction of the first pole segment and the length direction of the second pole segment is 90 degrees.

In some embodiments, one end of the first pin shaft is provided with a twisting head, the twisting head is located outside the connecting block, the end face of the outer side of the twisting head is provided with a second groove for a screwdriver to be clamped in, and the circumferential wall of the twisting head is provided with anti-skid lines.

In some embodiments, the guide slot is an arcuate slot.

In some embodiments, the bottom surface of the first groove is square.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

FIG. 1 is a schematic view of an outer cup impactor in accordance with an embodiment of the invention;

fig. 2 is a schematic view of a guide bar fitting relation according to an embodiment of the present invention;

fig. 3 is a schematic diagram of a connection block according to an embodiment of the present invention;

fig. 4 is a schematic diagram of a first pin according to an embodiment of the present invention;

fig. 5 is a schematic view of a guide bar according to an embodiment of the present invention.

Reference numerals:

the body 1 is provided with a plurality of grooves,

a connecting block 2, a mounting hole 21, a first pin hole 22, a second pin hole 23,

the guide bar 3, the guide groove 31, the first guide groove 311, the second guide groove 312,

the first pin 4, the first groove 41, the annular groove 42, the twisting head 43,

and a second pin 5.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

As shown in fig. 1-3, the outer cup driver according to the embodiment of the present invention includes a body 1, a connecting block 2, a guide bar 3, and a first pin 4.

Wherein, connecting block 2 is established on body 1, and connecting block 2 has mounting hole 21 and first pinhole 22, and first pinhole 22 is at least partly coincided with mounting hole 21, and the first end of guide bar 3 rotationally cooperates in mounting hole 21, and the first end of guide bar 3 has guide way 31, and first round pin axle 4 rotationally cooperates in first pinhole 22, and partly cooperation of first round pin axle 4 is in order to restrict guide bar 3 and remove and rotate in guide way 31.

The guide rod 3 is mainly used for determining the position of the implanted prosthesis, and the guide rod 3 and the body 1 need to be kept relatively fixed and cannot move relatively during the use process, so that the guide function is achieved. The first end of guide bar 3 rotationally cooperates in mounting hole 21, and first round pin axle 4 cooperates in first pinhole 22, and mounting hole 21 and first pinhole 22 have the part of coincidence, installs guide bar 3 in mounting hole 21 back, adjusts the angle of guide bar 3 for guide way 31 corresponds with first pinhole 22, reinserts first round pin axle 4, and the cooperation of a part of first round pin axle 4 is in guide way 31, and consequently, guide bar 3 can neither rotate relatively for body 1, also can not relative movement.

As shown in fig. 5, according to the utility model discloses outer cup impactor sets up guide way 31 on guide bar 3 to through first round pin axle 4 and guide way 31 complex mode, reach restriction guide bar 3 removal and pivoted purpose, guide bar 3 and first round pin axle 4's simple structure, the good reliability, and simple to operate, only need with guide bar 3 and first round pin axle 4 insert in proper order in mounting hole 21 and first pinhole 22 can, can effectively practice thrift operating time, raise the efficiency. In addition, the structure of mounting hole 21 and first pinhole 22 can reduce the clean sterilization degree of difficulty, and the practicality is strong.

As shown in fig. 4, in some embodiments, the first pin 4 is provided with a first groove 41, the first pin 4 is rotatable between a passing position where the first groove 41 is opened toward the guide bar 3 and a bottom surface of the first groove 41 is parallel to an axial direction of the guide bar 3, the guide bar 3 is movable in the axial direction of the mounting hole 21 and is also rotatable, and other positions where the first pin 4 is fitted in the guide groove 31 and the guide bar 3 is not movable and rotatable.

It is understood that, only when the first pin 4 is in the passing position, the first pin 4 and the guide bar 3 do not have any fitting relationship, the guide bar 3 can rotate and move in the axial direction, the first pin 4 does not play a limiting role in the guide bar 3, and when other positions of the passing position are removed, a part of the first pin 4 fits in the guide groove 31 of the guide bar 3, and at this time, the guide bar 3 cannot move and rotate. It should be noted that, when the first pin 4 rotates between the passing position and the other positions, the opening direction of the guide groove 31 should face the first pin 4, so as to avoid the interference between the guide rod 3 and the first pin 4.

So set up, when needs installation or dismantlement guide bar 3, need not to take out first round pin axle 4, only need with first round pin axle 4 rotate to through the position can, convenient to use. In addition, because first round pin axle 4's size is less, frequent dismantlement is lost easily, and first round pin axle 4 need not to dismantle in this embodiment, can prevent effectively that first round pin axle 4 from losing.

As shown in fig. 4, in some embodiments, the first pin 4 has an annular groove 43 extending along a circumferential direction thereof, the connecting block 2 is provided with a second pin hole 23, at least a portion of the second pin hole 23 coincides with the first pin hole 22, the outer cup impactor further includes a second pin 5, the second pin 5 is fitted in the second pin hole 23, and a portion of the second pin 5 is fitted in the annular groove 43 to limit axial movement of the first pin 4 along the first pin 4.

From this, second round pin axle 5 and the cooperation of the annular groove 43 on the first round pin axle 4, play the spacing effect of axial, first round pin axle 4 only can be followed first pinhole 22 and rotated, can not follow the axial displacement of first round pin axle 4, makes first round pin axle 4 rotationally cooperate in first pinhole 22 to can prevent that first round pin axle 4 from deviating from in first pinhole 22, make its and connecting block 2 be connected more stably.

As shown in fig. 5, in some embodiments, the guide groove 31 includes a first guide groove 311 and a second guide groove 312, an opening direction of the first guide groove 311 and an opening direction of the second guide groove 312 have an angle therebetween, and a portion of the first pin 4 is fitted in one of the first guide groove 311 and the second guide groove 312 to restrict the guide bar 3 from moving and rotating.

In the operation of hip joint outer cup, often need to operate respectively left leg and right leg, because the anteversion angle of left leg and right leg is different, when operating left leg and right leg, the angle between guide bar 3 and the body 1 is also different, consequently, first guide way 311 and second guide way 312 have been seted up on guide bar 3, and the opening direction of first guide way 311 and the opening direction of second guide way 312 have the contained angle, so set up, use the operation demand that same root guide bar 3 can satisfy left leg and right leg, need not to set up another guide bar 3, and adopt two guide bars 3 to confuse easily.

Specifically, the angle between the opening direction of the first guide groove 311 and the opening direction of the second guide groove 312 is 40 degrees. The opening direction of the first guide groove 311 is a direction perpendicular to the bottom surface of the first guide groove 311, the opening direction of the second guide groove 312 is a direction perpendicular to the bottom surface of the second guide groove 312, in some embodiments, the bottom surfaces of the first guide groove 311 and the second guide groove 312 are arc surfaces, the first guide groove 311 and the second guide groove 312 both have an axis, and the angle between the axis of the first guide groove 311 and the axis of the second guide groove 312 is 40 degrees.

In order to satisfy the requirements of both the left leg surgery and the right leg surgery, the angle between the opening direction of the first guide groove 311 and the opening direction of the second guide groove 312 is set to 40 degrees, because the left leg and the right leg each have an acetabular anteversion angle of 20 degrees, which is normal during the surgery.

In some embodiments, the guiding rod 3 includes a first rod section and a second rod section, an included angle is formed between the first rod section and the second rod section, the first end of the first rod section is fitted in the mounting hole 21, it should be noted that the first end of the first rod section and the first end of the guiding rod 3 in the above are the same end, the second end of the first rod section is connected with the second rod section, the first rod section is mainly used for being connected with the body 1 and realizing relative fixation, and the second rod section and the first rod section have an included angle, so that the medical staff can conveniently hold the guiding rod, thereby controlling the direction of the body 1.

In some embodiments, a twisting head 43 is disposed at one end of the first pin 4, the twisting head 43 is located outside the connecting block 2, a second groove for a screwdriver to be inserted into is disposed on an end surface of the outer side of the twisting head 43, the second groove is in a straight shape or a cross shape, and anti-slip lines are disposed on a peripheral wall of the twisting head 43 to increase friction force and facilitate medical staff to rotate the twisting head 43.

In some embodiments, the guide groove 31 is an arc-shaped groove, that is, the bottom surface of the guide groove 31 is an arc surface, preferably, the guide groove 31 is matched with the peripheral wall of the first pin shaft 4, so as to arrange, the first pin shaft 4 can be better matched with the guide groove 31, the peripheral wall of the first pin shaft 4 is attached to the bottom surface of the guide groove 31, thereby ensuring that the guide rod 3 cannot move relative to the connecting block 2 in any form, and the limiting effect is better.

In some embodiments, the bottom surface of the first groove 41 is square, and such a groove processing process is simple, which can reduce the production cost.

An outer cup impactor according to some specific examples of the invention is described below with reference to fig. 1-5.

As shown in fig. 1-3, the outer cup driver according to the embodiment of the present invention includes a body 1 and a connecting block 2 disposed at a side of the body 1, the connecting block 2 is provided with a mounting hole 21 and a first pin hole 22, a portion of the first pin hole 22 coincides with the mounting hole 21, the outer cup driver further includes a guide rod 3 and a first pin 4, the guide rod 3 includes a first rod section and a second rod section, an included angle between the first rod section and the second rod section is 90 degrees, a first end of the first rod section fits into the mounting hole 21, the first pin 4 fits into the first pin hole 22, the first end of the first rod section has a guide groove 31, the guide groove 31 is an arc groove corresponding to the first pin 4, when the first pin 4 fits into the first pin hole 22, a portion of the first pin 4 fits into the guide groove 31, so as to play a role in limiting axial movement and circumferential rotation of the first rod section, the guide bar 3 is fixed to the connecting block 2.

As shown in fig. 5, the guide groove 31 includes a first guide groove 311 and a second guide groove 312, an angle between an opening direction of the first guide groove 311 and an opening direction of the second guide groove 312 is 40 degrees, and a portion of the first pin 4 is fitted in one of the first guide groove 311 and the second guide groove 312 to restrict the guide bar 3 from moving and rotating.

As shown in fig. 2, the outer cup driver further includes a second pin 5, an annular groove 43 of the first pin 4, the annular groove 43 extends along the circumferential direction of the first pin 4, the connecting block 2 is provided with a second pin hole 23, at least a portion of the second pin hole 23 coincides with the first pin hole 22, the second pin 5 is fitted in the second pin hole 23, and a portion of the second pin 5 is fitted in the annular groove 43 to limit the axial movement of the first pin 4 along the first pin 4.

As shown in fig. 4, the first pin 4 is provided with a first groove 41, the bottom surface of the first groove 41 is square, the first pin 4 is rotatable between the passing position and the other position (the illustrated position is the passing position), the first groove 41 is opened toward the guide bar 3, and the bottom surface of the first groove 41 and the axial direction of the guide bar 3 are parallel to each other, and at the other position than the passing position, a part of the first pin 4 is fitted in the guide groove 31, at which time the guide bar 3 cannot be moved and rotated.

One end of the first pin shaft 4 is provided with a twisting head 43, the twisting head 43 is positioned outside the connecting block 2, the end face of the outer side of the twisting head 43 is provided with a second groove for a screwdriver to be clamped in, the second groove is in a straight shape, and the peripheral wall of the twisting head 43 is provided with anti-skidding threads.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element 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" 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 at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

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

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the present disclosure, the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims

1. An outer cup impactor, comprising:

a body;

the connecting block is arranged on the body and provided with a mounting hole and a first pin hole, and at least part of the first pin hole is overlapped with the mounting hole;

the first end of the guide rod is rotatably matched in the mounting hole, and the first end of the guide rod is provided with a guide groove;

the first pin shaft is rotatably matched in the first pin hole, and one part of the first pin shaft is matched in the guide groove to limit the guide rod to move and rotate.

2. The cup impactor of claim 1, wherein the first pin is provided with a first groove, the first pin is rotatable between a passing position and other positions, the first groove is open to the guide rod in the passing position, the bottom surface of the first groove and the axial direction of the guide rod are parallel to each other, and the guide rod is movable and rotatable along the mounting hole; in the other positions, the first pin shaft limits the movement and rotation of the guide rod.

3. The outer cup impactor of claim 1, wherein the first pin has an annular groove extending circumferentially thereof, the connecting block is provided with a second pin hole, at least a portion of the second pin hole coincides with the first pin hole,

the outer cup driver further comprises a second pin shaft, the second pin shaft is matched in the second pin hole, and one part of the second pin shaft is matched in the annular groove to limit the first pin shaft to move along the axial direction of the first pin shaft.

4. The cup impactor of claim 1, wherein the guide grooves comprise a first guide groove and a second guide groove, an opening direction of the first guide groove and an opening direction of the second guide groove form an included angle therebetween, and a portion of the first pin is fitted in one of the first guide groove and the second guide groove to limit movement and rotation of the guide rod.

5. The outer cup impactor of claim 4, wherein the included angle is 40 degrees.

6. The cup impactor of claim 1, wherein the guide rod comprises a first rod segment and a second rod segment, the first rod segment and the second rod segment having an included angle therebetween, and a first end of the first rod segment being fitted within the mounting hole.

7. The cup impactor of claim 6, wherein the angle between the length direction of the first stem segment and the length direction of the second stem segment is 90 degrees.

8. The outer cup driver according to claim 1, wherein a twisting head is arranged at one end of the first pin shaft, the twisting head is located outside the connecting block, a second groove for a screwdriver to be clamped into is arranged on an end face of the outer side of the twisting head, and anti-skid grains are arranged on a peripheral wall of the twisting head.

9. The cup impactor of claim 2, wherein the guide slot is an arcuate slot.

10. The cup impactor of claim 2, wherein the bottom surface of the first recess is square.