CN213156211U - Curved acetabular bone file device and connecting assembly capable of retracting knife thereof - Google Patents
Curved acetabular bone file device and connecting assembly capable of retracting knife thereof Download PDFInfo
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- CN213156211U CN213156211U CN202021196482.XU CN202021196482U CN213156211U CN 213156211 U CN213156211 U CN 213156211U CN 202021196482 U CN202021196482 U CN 202021196482U CN 213156211 U CN213156211 U CN 213156211U
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- joint
- file
- acetabular
- locking head
- bayonet lock
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Abstract
The utility model provides a curved acetabular bone file device and can move back sword coupling assembling thereof, the latter includes: the joint is connected with the connecting rod at one end, a mounting disc is arranged at the other end of the joint, an L-shaped clamping groove is formed in the mounting disc, the acetabular file rotates relative to the joint in the circumferential direction along a first direction, a cross shaft of the acetabular file is clamped into the L-shaped clamping groove, the acetabular file rotates relative to the joint in the circumferential direction along a second direction, and the cross shaft of the acetabular file is separated from the L-shaped clamping groove; a locking head slidably mounted to the joint in an axial direction; the bayonet lock is arranged at the end part of the locking head, a bayonet hole is formed in the mounting disc, and the bayonet lock is arranged in the bayonet hole in a pluggable manner. Solves the problems that the file is difficult to take out and the wound surface is enlarged in the taking-out process.
Description
Technical Field
The utility model relates to a medical treatment operating equipment technical field especially relates to a curved acetabular bone file device and can move back sword coupling assembling thereof.
Background
In the hip joint replacement operation, instruments for shaping an acetabular rasp are divided into two types, one is a straight rod structure and is generally used for common hip joint replacement, and the other is an eccentric structure and is used for minimally invasive hip joint replacement with various approaches.
At present, there are two methods for installing the acetabular prosthesis by the complete hip replacement:
after acetabulum plasticity is completed in the operation, an operator increases the distance for propping open the epidermal tissues to enable the acetabulum file to have enough space to be taken out, but the method can increase the damage to the epidermal tissues such as muscles and the like and nerves, has certain risk, possibly increases the incision length, and reduces the postoperative effect and the satisfaction degree of patients.
Or, before the acetabulum is shaped, when the acetabulum file is connected with the connecting rod, an infusion tube band is fixedly bound at the clamping position of the connecting rod and the acetabulum file, so that the acetabulum file is not in a locking state after being connected with the connecting rod. After the acetabulum is shaped, the acetabulum file is clamped on the acetabulum, the connecting rod is taken out firstly, then the acetabulum file is rotated by 90 degrees left and right through the forceps, the axis of the acetabulum file is approximately parallel to the acetabulum, the acetabulum file is taken out in an inclined manner, the acetabulum file and the connecting rod are connected extremely unstably by the method, the acetabulum file can be found in the process of finding the acetabulum and grinding the file, and the acetabulum file is inconvenient to use due to the.
It is thus clear that the present curved acetabular bone file device can accomplish the plastic of the file of the acetabular bone in the operation, but, need take out the acetabular bone file after accomplishing the shaping of acetabular bone file, nevertheless shelter from because of incision epidermis tissue, the acetabular bone file takes out more difficultly, and is great to minimal access surgery or acetabular bone, needs the patient of jumbo size acetabular bone file, and it is more difficult to take out the file in the art.
SUMMERY OF THE UTILITY MODEL
The utility model provides a curved acetabular bone file device and can move back sword coupling assembling to at least partial technical problem who solves among the prior art acetabular bone file and take out the difficulty, take out the in-process and lead to the surface of a wound to enlarge.
In order to solve the technical problem, the utility model provides a can move back sword coupling assembling for curved acetabular bone file device, curved acetabular bone file device includes acetabular bone file and connecting rod, can move back sword coupling assembling includes:
the joint is connected with the connecting rod at one end, a mounting disc is arranged at the other end of the joint, an L-shaped clamping groove is formed in the mounting disc, the acetabular file rotates relative to the joint in the circumferential direction along a first direction, a cross shaft of the acetabular file is clamped into the L-shaped clamping groove, the acetabular file rotates relative to the joint in the circumferential direction along a second direction, and the cross shaft of the acetabular file is separated from the L-shaped clamping groove;
a locking head slidably mounted to the joint in an axial direction;
the clamping pin is arranged at the end part of the locking head, a clamping pin hole is formed in the mounting disc, the clamping pin is arranged in the clamping pin hole in a pluggable mode, and the height of an outer cylindrical contact point of the clamping pin and the cross shaft is lower than the cylindrical axis of the cross shaft when the clamping pin is inserted into the clamping pin hole.
Furthermore, the joint is provided with a guide groove along the axial direction, and the locking head is slidably mounted on the joint along the guide groove through a positioning pin.
Further, still include return means, return means install in the locking head with connect between.
Further, the return component is a compression spring, and the compression spring is arranged between the locking head and the joint.
Further, one of the first direction and the second direction is clockwise and the other is counterclockwise.
Furthermore, the number of the bayonet pins is four, and the bayonet pins are uniformly distributed on the locking head in the circumferential direction.
The utility model also provides a curved acetabular bone file device, include:
an acetabular file and a connecting rod; and the number of the first and second groups,
the connecting rod is connected with the acetabular file through the connecting rod, and the acetabular file is detachably mounted on the connecting rod through the connecting rod.
The utility model provides a can move back sword coupling assembling and be arranged in curved acetabular bone file device, in the use, be connected connecting rod and acetabular bone file through can moving back sword coupling assembling before the art, during the installation acetabular bone file, push down locking head makes the bayonet lock break away from the card pinhole, then installation acetabular bone file makes acetabular bone file card in L type draw-in groove, loosens locking head, and compression spring gets back to initial state, the outer cylinder of bayonet lock chucking acetabular bone file cross. After the acetabular file crosses the epidermis tissue and aligns the acetabular position, acetabular file corotation realizes the acetabular plasticity, and acetabular file reversal after accomplishing the plasticity, connecting rod and acetabular file break away from, and the acetabular file is left internally, makes instruments such as tweezers take out. Thereby solving the problems that the file is difficult to take out and the wound surface is enlarged in the taking-out process; simultaneously, adopt rigid connection's mode, avoided current transfer line ligature to connect the unstable problem of acetabular bone file connection that leads to, provide better operation guarantee for patient and art person.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural view of a curved acetabular bone file device in which the retractable connecting assembly of the present invention is located;
FIG. 2 is an enlarged view of portion A of FIG. 1;
fig. 3 is a part diagram of a locking head in the connecting assembly with a retractable cutter according to the present invention.
Description of reference numerals:
100-connecting rod
1-joint 11-guide groove 12-L-shaped clamping groove 2-positioning pin 3-locking head 31-clamping pin
4-compression spring
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.
The utility model provides a can move back sword coupling assembling is used for curved acetabular bone file device, and this curved acetabular bone file device includes acetabular bone file and connecting rod 100, and wherein, acetabular bone file is the file structure of the conventional use in this field to cross axle structure has. It should be understood that the curved acetabular bone file device is further provided with a medical power supply, the acetabular bone file is driven to rotate clockwise or anticlockwise through electrification, circuit connection of the power supply is equal to that of the prior art, and details are not repeated herein. This can move back sword coupling assembling is through setting up between connecting rod 100 head and acetabular bone file to realize the structure that both lock or separate, through adjusting 3 stand bayonet locks 31 height realization reversal backstep functions of locking head for connecting rod 100 rotates forward after connecting the file and drives the file mill file, and the reversal can realize that the file withdraws from automatically, thereby solves the file and takes out the problem that the mouth expands in the difficulty, file taking out process.
In one embodiment, as shown in fig. 1-3, the assembly includes a coupling 1, a locking head 3, and a bayonet 31; one end of the joint 1 is connected with the connecting rod 100, the other end of the joint 1 is provided with a mounting disc, an L-shaped clamping groove 12 is formed in the mounting disc, the acetabular file rotates relative to the joint 1 in the circumferential direction along a first direction, a cross shaft of the acetabular file is clamped into the L-shaped clamping groove 12, the acetabular file rotates relative to the joint 1 in the circumferential direction along a second direction, and the cross shaft of the acetabular file is separated from the L-shaped clamping groove 12; the locking head 3 is axially and slidably arranged on the joint 1; bayonet 31 is installed in the tip of locking head 3, bayonet 31 hole has been seted up on the mounting disc, bayonet 31 can install with inserting bayonet 31 downthehole, and bayonet 31 inserts bayonet 31 hole time with the outer cylinder contact point height of cross is less than the cylinder axis of cross.
Wherein, one of the first direction and the second direction is clockwise direction, and the other is counterclockwise direction, that is, the first direction and the second direction should be two opposite directions, when the first direction is clockwise direction, the second direction is counterclockwise direction, and vice versa.
Furthermore, bayonet 31 is four, and each bayonet 31 evenly distributes in locking head 3 circumference, that is to say, locking head 3 has four bayonet 31, has seted up four bayonet 31 holes on the mounting disc of joint 1 with it correspondingly.
At initial state, locking head 3 withstands and connects 1, and bayonet lock 31 is all inserted bayonet lock 31 downthehole, when the installation acetabular bone file, pushes down locking head 3, makes bayonet lock 31 keep away from the mounting disc motion and breaks away from bayonet lock 31 hole, then installation acetabular bone file, makes the cross axle card of acetabular bone file in L type draw-in groove 12, unclamps locking head 3, the cylindrical outer cylinder of cross of bayonet lock 31 return and chucking acetabular bone file. And, according to the height that adjusts bayonet 31, in order to guarantee that after locking, bayonet 31 and the cross cylinder's of acetabular bone file contact point height is less than cross cylinder axis, and increases the oblique angle with bayonet 31 head. The bayonet 31 clamps the acetabular bone file in a normal state to prevent the acetabular bone file from falling off, and the joint 1 drives the acetabular bone file to rotate in the forward rotation to realize the shaping of the acetabular bone file in the operation; when the acetabulum file is reversely rotated, the cross cylinder of the acetabulum file presses down bayonet 31, so that bayonet 31 leaves the hole of bayonet 31 under the action of the cross cylinder, and the cutter retreating is realized.
In order to improve the accuracy of the movement direction of the locking head 3 relative to the joint 1 and ensure that the locking head 3 can move along the axial direction of the joint 1, a guide groove 11 can be formed in the joint 1 along the axial direction, and the locking head 3 can be slidably mounted on the joint 1 along the guide groove 11 through a positioning pin 2.
In the actual use process, when the external force disappears, the bayonet 31 needs to be reset, and the assembly further comprises a reset part which is arranged between the locking head 3 and the joint 1. Specifically, the return component is a compression spring 4, and the compression spring 4 is arranged between the locking head 3 and the joint 1. In the working process, the locking head 3 moves along the direction of the guide groove 11 through the compression spring 4 and the positioning pin 2; the compression spring 4 compresses the positioning pin 2 in a relaxed state, so that the locking head 3 is propped against the joint 1, and the bayonet 31 is completely inserted into the hole of the bayonet 31; when the acetabular bone file is installed, the locking head 3 is pressed downwards to enable the bayonet lock 31 to be separated from the bayonet lock 31 hole, then the acetabular bone file is installed, the cross shaft of the acetabular bone file is clamped in the L-shaped clamping groove 12, the locking head 3 is loosened, the compression spring 4 returns to the initial state, and the cross cylinder of the acetabular bone file is clamped through the bayonet lock 31.
In above-mentioned specific embodiment, the utility model provides a can move back sword coupling assembling is arranged in curved acetabular bone file device, in the use, connect connecting rod 100 and acetabular bone file through can moving back sword coupling assembling preoperatively, during the installation acetabular bone file, push down locking head 3, make bayonet lock 31 break away from bayonet lock 31 hole, then installation acetabular bone file, make acetabular bone file card in L type draw-in groove 12, loosen locking head 3, initial state is got back to compression spring 4, the outer cylinder of bayonet lock 31 chucking acetabular bone file cross axle. After the acetabular file crosses the epidermis tissue and aligns the acetabular position, acetabular file corotation realizes the acetabular plasticity, and acetabular file reversal after accomplishing the plasticity, connecting rod 100 and acetabular file break away from, and the acetabular file is left internally, makes instruments such as tweezers take out. Thereby solving the problems that the file is difficult to take out and the wound surface is enlarged in the taking-out process; simultaneously, adopt rigid connection's mode, avoided current transfer line ligature to connect the unstable problem of acetabular bone file connection that leads to, provide better operation guarantee for patient and art person.
Except that above-mentioned can move back sword coupling assembling, the utility model discloses still provide a curved acetabular bone file device including this can move back sword coupling assembling, the other each partial structure of this curved acetabular bone file device please refer to prior art, do not describe here any more.
It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" may be intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order described or illustrated, unless specifically identified as an order of performance. It should also be understood that additional or alternative steps may be used.
Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.
For convenience of description, spatially relative terms, such as "inner", "outer", "lower", "below", "upper", "above", and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "below … …" can include both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (7)
1. A reversible connection assembly for a curved acetabular file device including an acetabular file and a connecting rod (100), the reversible connection assembly comprising:
the joint (1), one end of the joint (1) is connected with the connecting rod (100), the other end of the joint (1) is provided with a mounting disc, an L-shaped clamping groove (12) is formed in the mounting disc, the acetabular file rotates relative to the joint (1) in the circumferential direction along a first direction, a cross shaft of the acetabular file is clamped into the L-shaped clamping groove (12), the acetabular file rotates relative to the joint (1) in the circumferential direction along a second direction, and the cross shaft of the acetabular file is separated from the L-shaped clamping groove (12);
the locking head (3) is arranged on the joint (1) in an axially slidable manner;
bayonet lock (31), bayonet lock (31) install in the tip of locking head (3), bayonet lock (31) hole has been seted up on the mounting disc, bayonet lock (31) install with can inserting bayonet lock (31) are downthehole, and bayonet lock (31) insert when bayonet lock (31) hole with the outer cylinder contact point height of cross is less than the cylinder axis of cross.
2. A tool-retracting connection assembly according to claim 1, wherein the joint (1) is axially provided with a guide groove (11), and the locking head (3) is slidably mounted to the joint (1) along the guide groove (11) by means of a positioning pin (2).
3. A retractable knife connection assembly according to claim 2, further comprising a return member mounted between the locking head (3) and the joint (1).
4. A retractable knife connection assembly according to claim 3, characterized in that the return means is a compression spring (4), the compression spring (4) being arranged between the locking head (3) and the joint (1).
5. The retractable knife connection assembly of claim 1, wherein one of the first and second directions is clockwise and the other is counterclockwise.
6. A retractable connecting assembly according to claim 1, wherein the number of said locking pins (31) is four, and each of said locking pins (31) is equally distributed circumferentially on said locking head (3).
7. An acetabular burr device, comprising:
an acetabular burr and a connecting rod (100); and the number of the first and second groups,
the assembly of any one of claims 1 to 6, the acetabular burr being removably mounted to the linkage (100) by the assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021196482.XU CN213156211U (en) | 2020-06-24 | 2020-06-24 | Curved acetabular bone file device and connecting assembly capable of retracting knife thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021196482.XU CN213156211U (en) | 2020-06-24 | 2020-06-24 | Curved acetabular bone file device and connecting assembly capable of retracting knife thereof |
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| CN213156211U true CN213156211U (en) | 2021-05-11 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114961866A (en) * | 2022-05-06 | 2022-08-30 | 中国船舶重工集团公司第七0三研究所 | Anti-drop self-locking high-temperature disc shaft connecting structure |
-
2020
- 2020-06-24 CN CN202021196482.XU patent/CN213156211U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114961866A (en) * | 2022-05-06 | 2022-08-30 | 中国船舶重工集团公司第七0三研究所 | Anti-drop self-locking high-temperature disc shaft connecting structure |
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