CN219700072U - Hinge type external fixing support for maintaining joint stability - Google Patents
Hinge type external fixing support for maintaining joint stability Download PDFInfo
- Publication number
- CN219700072U CN219700072U CN202320631950.9U CN202320631950U CN219700072U CN 219700072 U CN219700072 U CN 219700072U CN 202320631950 U CN202320631950 U CN 202320631950U CN 219700072 U CN219700072 U CN 219700072U
- Authority
- CN
- China
- Prior art keywords
- rotating piece
- piece
- connecting part
- connection
- rotating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 description 10
- 239000010959 steel Substances 0.000 description 10
- 210000002758 humerus Anatomy 0.000 description 7
- 210000000623 ulna Anatomy 0.000 description 4
- 210000000988 bone and bone Anatomy 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- 238000013475 authorization Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
Landscapes
- Pivots And Pivotal Connections (AREA)
Abstract
The utility model relates to a hinge type external fixing bracket for maintaining joint stability, which comprises the following components: a connection part; the first rotating piece is connected to the connecting part; the second rotating piece is connected to the connecting part; the fixing piece is connected to the connecting part and is used for fixing the first rotating piece and the second rotating piece on the connecting part; the other ends of the first rotating piece and the second rotating piece, which are far away from the connecting part, are respectively connected with a connecting rod; the structure of the first rotating piece is symmetrical to that of the second rotating piece; the second rotating piece comprises a rotating piece body, a connecting piece is formed on the rotating piece body, and the other end of the connecting piece is connected with the end part of the connecting rod. After adopting above-mentioned structure, its beneficial effect is: the connecting rod is connected with the second rotating piece or the first rotating piece through a spherical universal connection pair, so that universal adjustment is carried out between the connecting rod and the second rotating piece or the first rotating piece; the hinge type external fixing bracket does not need to be provided with a positioning guide pin in a invasive way, but can simply and reliably position the rotation center through a perspective image.
Description
Technical Field
The utility model belongs to the technical field of steel needle fixation used in bone surgery, and particularly relates to a hinge type external fixation support for maintaining joint stability.
Background
The current bracket placement for the bone surgery is all provided with a positioning guide needle in advance, and a cut is often required to be made on the outer side of the distal end of the humerus, even on the inner side of the distal end of the humerus, so that the positioning guide needle is arranged, and the humerus and ulna components of the bracket are arranged according to the positioning function of the positioning needle; the Kirschner wire duct with the diameter of the positioning needle being 2.0 or 2.5mm is different from the rotation center duct of the bracket, and the function is to facilitate the passage of the positioning needle, so that systematic deviation is easy to generate.
The guide pin itself is relatively soft and easily bendable and deformable even if it is placed according to the guide pin, since the outer end of the guide pin is bent, the rotation axis of the bracket along the outer guide pin is not aligned with the guide pin driven into the distal end of the humerus, resulting in that even if the rotation axis is accurately positioned, the installed hinge bracket does not exactly conform to the real rotation axis.
Disclosure of Invention
In order to solve the above-mentioned problems of the prior art, the present utility model provides a hinge type external fixing bracket for maintaining joint stability, which does not need to invasively position a positioning guide pin, but can simply and reliably position a rotation center and position the hinge type external fixing bracket only through perspective images.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
a hinged external fixation bracket to maintain joint stability, comprising: a connection part;
the first rotating piece is connected to the connecting part and can rotate relative to the connecting part;
the second rotating piece is connected to the connecting part and can rotate relative to the connecting part;
the fixing piece is connected to the connecting part and is used for fixing the first rotating piece and the second rotating piece on the connecting part;
the other ends of the first rotating piece and the second rotating piece, which are far away from the connecting part, are respectively connected with a connecting rod;
the structure of the first rotating piece is symmetrical to that of the second rotating piece; the second rotating piece comprises a rotating piece body, a connecting piece is formed on the rotating piece body, and a connecting groove connected with the end part of the connecting rod is formed at the other end of the connecting piece in an inward concave manner; the end of the connecting rod is matched with the connecting groove.
In one embodiment, the connecting part comprises a connecting part body, wherein one end of the connecting part body is provided with a limiting part, and the other end of the connecting part body is provided with a fastening part; the connecting part is internally provided with a first through hole consistent with the length direction of the connecting part.
In one embodiment, the device further comprises an auxiliary positioning piece, wherein a second through hole is formed in the auxiliary positioning piece, and the center line of the second through hole coincides with the center line of the first through hole.
In one embodiment, the fixing piece is provided with a plurality of spanner rod holes for conveniently inserting spanner rods; a reinforcing ring is formed on one side of the fixing piece, which is close to the first rotating piece or the second rotating piece.
In one embodiment, the connecting piece is formed with a relief portion near the rotating piece body.
In one embodiment, the connecting piece is provided with a fastening piece, the fastening piece is arranged on the connecting piece in a penetrating mode, and the fastening end of the fastening piece is located in the connecting groove.
In one embodiment, the end of the connecting rod is provided with a spherical connecting part, and the spherical connecting part is matched with the connecting groove to form a universal connecting pair, so that universal adjustment is carried out between the connecting rod and the second rotating piece or the first rotating piece.
In one embodiment, the rotating member body is provided with a connecting hole connected with the connecting part.
The hinge type external fixing bracket for maintaining joint stability has the beneficial effects that:
1. the connecting rod passes through spherical universal connection pair for carry out universal adjustment between connecting rod and the second rotation piece or the first rotation piece.
2. The connecting piece is close to the rotating piece body and is provided with a abdication part, so that the stroke between the second rotating piece and the first rotating piece is larger.
3. The connecting piece is provided with a fastener, so that the connecting rod is fixed with the second rotating piece or the first rotating piece more stably.
4. The hinge type external fixing bracket does not need to be provided with a positioning guide pin in a invasive way, but can simply and reliably position the rotation center through a perspective image.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model.
FIG. 1 is a front view of a hinged external fixation bracket structure for maintaining joint stability in accordance with the present utility model;
FIG. 2 is a rear view of the articulating external fixation bracket structure of the present utility model for maintaining joint stability;
FIG. 3 is an exploded view of the hinged external fixation bracket structure of the present utility model for maintaining joint stability;
fig. 4 is a reference view showing the usage state of the hinge type external fixation support structure for maintaining the stability of the joint according to the present utility model.
Detailed Description
The utility model will be better explained for understanding by referring to the following detailed description of the embodiments in conjunction with the accompanying drawings.
A hinge type external fixation bracket for maintaining stability of a joint according to an embodiment of the present utility model, as shown in fig. 1 to 3, includes: a connecting part 1 for connecting;
the first rotating piece 2 is connected to the connecting part 1, and the first rotating piece 2 can rotate relative to the connecting part 1;
the second rotating piece 3 is connected to the connecting part 1, and the second rotating piece 3 can rotate relative to the connecting part 1;
and a fixing member 5 connected to the connection portion 1 for fixing the first and second rotating members 2 and 3 to the connection portion 1.
Further, the fixing member 5 is provided with a plurality of wrench holes 51 for inserting a wrench.
Specifically, the other ends of the first rotating member 2 and the second rotating member 3, which are far away from the connecting portion 1, are respectively connected with a connecting rod 4, and the connecting rods 4 are cylindrical and are conveniently connected with a steel needle fixing clamp, and it should be noted that the steel needle fixing clamp is in the prior art, and the structure thereof is not repeated.
Specifically, in the present embodiment, as shown in fig. 3, the connection part 1 includes a connection part body 11, one end of the connection part body 11 is formed with a limit part 12, and the other end is formed with a fastening part 13, and the limit part 12 is a stop formed by one end of the connection part body 11 for limiting, as an example; the fastening part 13 is an external thread, so that connection is convenient; the connecting portion 1 is provided with a first through hole 14 which is consistent with the length direction of the connecting portion 1.
Specifically, in the present embodiment, as shown in fig. 3, the structure of the first rotating member 2 is symmetrical to the structure of the second rotating member 3; the second rotating member 3 comprises a rotating member body 31, a connecting member 32 is formed on the rotating member body 31, and a connecting groove 33 connected with the end of the connecting rod 4 is formed at the other end of the connecting member 32 in an inward concave manner; the end part of the connecting rod 4 is provided with a spherical connecting part 41, and the spherical connecting part 41 is matched with the connecting groove 33 to form a universal connecting pair, so that the connecting rod 4 and the second rotating piece 3 or the first rotating piece 2 are subjected to universal adjustment; the rotor body 31 is provided with a connecting hole 34 connected to the connecting portion 1.
Further, the first rotating member 2 and the second rotating member 3 are oppositely arranged and connected on the connecting portion 1, and after the preset relative angle between the first rotating member 2 and the second rotating member 3 is adjusted, the first rotating member 2 and the second rotating member 3 are fixed on the connecting portion 1 through the fixing member 5.
Further, in this embodiment, the connecting member 32 is formed with a relief portion 35 near the rotating member body 31, and when the first rotating member 2 and the second rotating member 3 are relatively disposed, the relief portion 35 makes the range of travel between the first rotating member 2 and the second rotating member 3 larger when the first rotating member 2 and the second rotating member 3 are relatively rotated.
Further, in this embodiment, as shown in fig. 3, the connecting piece 32 is provided with a fastening piece 6, the fastening piece 6 is disposed on the connecting piece 32 in a penetrating manner, and a fastening end of the fastening piece 6 is located in the connecting slot 33, and the fastening piece 6 is used for fixing the connecting rod 4 for adjusting the moving position so as not to move.
Further, in the present embodiment, a reinforcing ring 52 is formed on a side of the fixing member 5 adjacent to the first rotating member 2 or the second rotating member 3, and further fastens the first rotating member 2 or the second rotating member 3.
Specifically, in the present embodiment, as shown in fig. 3, the auxiliary positioning member 7 is further included, and the auxiliary positioning member 7 is located at one side of the connecting portion 1; the auxiliary positioning piece 7 is provided with a second through hole 72, and the central line of the second through hole 72 coincides with the central line of the first through hole 14; in use, the first through hole 14 and the second through hole 72 are penetrated by steel needles for positioning.
When the device is used, as shown in fig. 3 and 4, the rotation center of the connecting part 1 is determined by transparent images, then the second rotating part 3 on the humerus side is arranged, the steel needle fixing clamp is fixedly connected to the connecting rod 4 on the second rotating part 3, the steel needle fixing clamp is fixed with the humerus through the steel needle, the angle between the connecting rod 4 and the humerus is adjusted through the spherical connecting part 41, the connecting part 1 and the auxiliary positioning part 7 are fixed through the fastening piece 6 after the adjustment, the first rotating part 2 is arranged again, the steel needle fixing clamp is fixedly connected to the connecting rod 4 on the first rotating part 2, the steel needle fixing clamp is fixed with the ulna through the steel needle, the angle between the connecting rod 4 and the ulna is adjusted through the spherical connecting part 41, and the angle between the connecting rod 4 and the ulna is fixed through the fastening piece 6 after the adjustment; and then is connected with the connecting part 1 through the fixing piece 5, and finally fixes the first rotating piece 2 and the second rotating piece 3, so that the operation is simple and convenient, the positioning guide needle does not need to be positioned in a invasive way, and the hinge type external fixing support for positioning the rotation center and positioning can be simply and reliably positioned only through perspective images.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present utility model. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present utility model unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the authorization specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
In the description of the present utility model, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present utility model; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations 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 "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present utility model.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
The foregoing description is only of the preferred embodiments of the utility model, and all changes and modifications that come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (8)
1. A hinged external fixation bracket for maintaining joint stability, comprising: a connection part;
the first rotating piece is connected to the connecting part and can rotate relative to the connecting part;
the second rotating piece is connected to the connecting part and can rotate relative to the connecting part;
the fixing piece is connected to the connecting part and is used for fixing the first rotating piece and the second rotating piece on the connecting part;
the other ends of the first rotating piece and the second rotating piece, which are far away from the connecting part, are respectively connected with a connecting rod;
the structure of the first rotating piece is symmetrical to that of the second rotating piece; the second rotating piece comprises a rotating piece body, a connecting piece is formed on the rotating piece body, and a connecting groove connected with the end part of the connecting rod is formed at the other end of the connecting piece in an inward concave manner; the end of the connecting rod is matched with the connecting groove.
2. The hinged external fixation apparatus as in claim 1, wherein the connection part comprises a connection part body, one end of the connection part body is formed with a limit part, and the other end is formed with a fastening part; the connecting part is internally provided with a first through hole consistent with the length direction of the connecting part.
3. The hinged external fixation apparatus as in claim 1, further comprising an auxiliary positioning member having a second through hole, wherein a center line of the second through hole coincides with a center line of the first through hole.
4. The hinged external fixing bracket for maintaining joint stability according to claim 1, wherein the fixing member is provided with a plurality of spanner holes for conveniently inserting spanner; a reinforcing ring is formed on one side of the fixing piece, which is close to the first rotating piece or the second rotating piece.
5. The hinged external fixation apparatus as in claim 1, wherein the connector has a relief portion formed near the rotator body.
6. The hinged external fixation apparatus as in claim 1, wherein the connector has a fastener, the fastener is disposed through the connector, and a fastening end of the fastener is disposed in the connecting slot.
7. The hinged external fixation apparatus as claimed in claim 1, wherein the end of the connection rod is formed with a spherical connection portion, and the spherical connection portion is matched with the connection groove to form a universal connection pair, so that the connection rod can be universally adjusted with the second rotation member or the first rotation member.
8. The hinged external fixation apparatus as in claim 1, wherein the rotation member body has a connection hole connected to the connection portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320631950.9U CN219700072U (en) | 2023-03-28 | 2023-03-28 | Hinge type external fixing support for maintaining joint stability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320631950.9U CN219700072U (en) | 2023-03-28 | 2023-03-28 | Hinge type external fixing support for maintaining joint stability |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219700072U true CN219700072U (en) | 2023-09-19 |
Family
ID=87980763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320631950.9U Active CN219700072U (en) | 2023-03-28 | 2023-03-28 | Hinge type external fixing support for maintaining joint stability |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219700072U (en) |
-
2023
- 2023-03-28 CN CN202320631950.9U patent/CN219700072U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6716213B2 (en) | Spinal-rod connecting apparatus and a connector thereof | |
| EP2555696B1 (en) | Jointed rod | |
| EP1093761B1 (en) | Spinal cross connector | |
| CN102113909A (en) | Suspension system for minimally invasive surgery | |
| US20090240292A1 (en) | Spinal Rod Guide For A Vertebral Screw Spinal Rod Connector Assembly | |
| JP2010538721A (en) | Vertebral fixation device | |
| JP2015519159A (en) | Device for fixing the thigh to the lumbar endoprosthesis | |
| JPH03194208A (en) | Device for articulated connection of two parts | |
| ATE278361T1 (en) | SPINAL FIXATION SYSTEM | |
| US20150136926A1 (en) | Surgical holder | |
| CN215228371U (en) | Array support frame, operation navigation device and operation robot | |
| CN219700072U (en) | Hinge type external fixing support for maintaining joint stability | |
| US10588644B2 (en) | Guide attachment for power tools | |
| CN111904577A (en) | Intramedullary nail sighting device and surgical instrument box comprising same | |
| CN219921231U (en) | Fixing device for fixing tracer | |
| US9788900B2 (en) | Surgical instrument positioning system and method | |
| CN115919518B (en) | Femoral head surface replacement positioning device | |
| CN117297732A (en) | External fixator for correcting long bone deformity | |
| CN207125780U (en) | 2 Multi-dimensional positioning devices of femoral interlocking nail | |
| CN114010324B (en) | Reversing mechanism for power device and surgical robot | |
| US20220110712A1 (en) | Surgical Instrument Holder | |
| CN213588366U (en) | Operation drag hook traction support | |
| CN113975164A (en) | Spliced multi-angle needle insertion external fixator | |
| CN221180357U (en) | Support frame for bronchoscope or gastroenteroscope | |
| CN219712906U (en) | Medical treatment beauty equipment's hand utensil pipe bearing structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |