CN117064525A - Modularized branched chain applied to external fixing support - Google Patents
Modularized branched chain applied to external fixing support Download PDFInfo
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- CN117064525A CN117064525A CN202311217959.6A CN202311217959A CN117064525A CN 117064525 A CN117064525 A CN 117064525A CN 202311217959 A CN202311217959 A CN 202311217959A CN 117064525 A CN117064525 A CN 117064525A
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- 210000000078 claw Anatomy 0.000 claims description 4
- 238000011282 treatment Methods 0.000 abstract description 21
- 208000010392 Bone Fractures Diseases 0.000 description 8
- 206010017076 Fracture Diseases 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 238000012986 modification Methods 0.000 description 7
- 230000004048 modification Effects 0.000 description 7
- 230000006870 function Effects 0.000 description 5
- 210000000988 bone and bone Anatomy 0.000 description 4
- 201000010099 disease Diseases 0.000 description 3
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 3
- 230000000399 orthopedic effect Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 208000032170 Congenital Abnormalities Diseases 0.000 description 2
- 206010061619 Deformity Diseases 0.000 description 2
- 210000003414 extremity Anatomy 0.000 description 2
- 210000003141 lower extremity Anatomy 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 210000001519 tissue Anatomy 0.000 description 2
- 238000011269 treatment regimen Methods 0.000 description 2
- 210000001364 upper extremity Anatomy 0.000 description 2
- 208000027502 Ankle fracture Diseases 0.000 description 1
- 206010070918 Bone deformity Diseases 0.000 description 1
- 206010061599 Lower limb fracture Diseases 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 210000003423 ankle Anatomy 0.000 description 1
- 210000000544 articulatio talocruralis Anatomy 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000035876 healing Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 230000008407 joint function Effects 0.000 description 1
- 230000036244 malformation Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/60—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like for external osteosynthesis, e.g. distractors, contractors
- A61B17/66—Alignment, compression or distraction mechanisms
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- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
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Abstract
The invention relates to a modularized branched chain applied to an external fixed support, which comprises a near-end connecting pair, an intermediate connecting rod and a far-end connecting pair. The connecting pair is specifically a rotary connecting pair, a universal connecting pair or a ball connecting pair and comprises a connecting pair connector and a connecting pair connector respectively, wherein the connecting pair connector is used for being connected with a near end ring and a far end ring, and the connecting pair connector is used for being connected with an intermediate connecting rod; the middle connecting rod comprises a screw rod, a sleeve, a knob, a hexagonal nut and a stud. When the length of the branched chain needs to be adjusted, the knob is rotated to adjust. Compared with the prior art, the invention solves the problems of redundancy of degrees of freedom, complex structure, heavy device and the like when the traditional external fixator faces the treatment requirement of few degrees of freedom by the modularized design of the external fixator branch chains and adjusting the connection pair according to a specific correction scheme, can provide a more targeted correction scheme, and improves the universality and practicability of the external fixator.
Description
Technical Field
The invention relates to the technical field of medical equipment, in particular to a modularized branched chain applied to an external fixing support.
Background
The incidence of various orthopedic diseases caused by various causes is increasing. The related literature shows that the fracture of the lower limb of the adult accounts for 49.3 percent of the fracture of the whole body, the upper limb accounts for 24.6 percent, and the fracture of the lower limb accounts for 2 times of the upper limb. Wherein, ankle fracture accounts for about 4% of total fracture clinically, and the incidence rate is the first fracture in the joints, which becomes one of the most common diseases in lower limb fracture. Therefore, studies on fracture reduction and rehabilitation for ankle joint are urgently needed.
The external bone fixation technology is an effective method for treating bone difficult and complicated diseases such as fracture, bone deformity and the like. The external fixation technology uses a traction regeneration technology as a principle, and uses an external fixation bracket to apply pressure to two ends of a damaged bone so as to promote tissue healing, and the external fixation technology has the advantages of wide application range, high cure rate and few complications. Because of its complex joint function and tissue environment, the ankle is often treated by external fixation. Six-axis fixtures of various configurations are widely popularized and applied at present.
However, most of the existing external fixator is assembled in a complete set, the external fixator is only fixed in a plurality of sizes, and often in order to meet most of treatment demands, the external fixator which is usually constructed meets all six degrees of freedom and exceeds the demands of malformation treatment, redundant degrees of freedom appear, on one hand, the constructed external fixator is complex and heavy, and the burden is brought to a patient, on the other hand, doctors need to consider other degrees of freedom when adjusting a certain degree of freedom, and the operation difficulty is improved. A small portion of the external fixator may be custom sized to fit the patient, but is more time consuming and expensive. In order to reduce the burden of the patient and the operation difficulty of doctors on the premise of meeting the treatment requirement as much as possible, the degree of freedom required for correcting the deformity of the patient needs to be clarified, and the treatment scheme is formulated accordingly, so that the external fixator meeting the requirement degree of freedom is constructed.
For example, chinese patent No. CN108478266a discloses a freely-connected three-branched-chain parallel orthopedic external fixing bracket, where the other end of the chute sleeve is rotationally connected with one end of a hook hinge with a cross shaft structure through a second revolute pair, so that one end of the hook hinge has a rotational degree of freedom relative to the chute sleeve; the second revolute pair rotation axis coincides with the sliding sleeve axis, and the Hooke hinge is provided with a cross shaft structure, so that two degrees of rotation freedom are arranged between two ends of the Hooke hinge; the ball hinge enables three degrees of rotation freedom to be formed between the first active driving mechanism and the second active driving mechanism; the freely-connected three-branched-chain parallel orthopedic external fixing support achieves six-degree-of-freedom fracture reduction, and can exceed the requirement of deformity treatment, and redundant degrees of freedom are generated. Meanwhile, the first movable pair occupies a large space, and each branched chain has 2 adjusting links, so that the operation is more and complex; the moving pair of the second structural scheme is arranged on the inner side of the ring, and reading and adjustment are difficult. In particular, the first sliding pair 101 and the first rotating pair 102 with adjustable components or the first graduation mark A1 and the first indication mark A2 are inconvenient to adjust, and when the whole bracket is installed on the limb, the limb of the person in the ring forms an adjustment obstacle.
There is therefore a need to develop an external fixator apparatus that satisfies the treatment regimen with less redundant degrees of freedom and ease of adjustment.
Disclosure of Invention
The object of the present invention is to provide a modular branched chain for external fixation brackets, which overcomes the drawbacks of the prior art described above, and to construct an external fixation device that meets the treatment regimen and the degree of freedom required. In order to reduce or eliminate the redundant degree of freedom, the modular branched chain can be achieved by constructing a specific external fixator configuration after the specific treatment scheme, the modular branched chain itself contains the limitation of different degrees of freedom, the function of limiting the degrees of freedom is achieved through the collocation of different branched chains, the unnecessary degrees of freedom in the subsequent drafting adjustment process are also automatically restrained, the device is simplified, and the universality is improved.
The aim of the invention can be achieved by the following technical scheme:
the invention provides a modularized branched chain applied to an external fixed bracket, wherein the branched chain comprises a connecting pair and an intermediate connecting rod; the connecting pair comprises a proximal connecting pair and a distal connecting pair which are opposite; the near-end connecting pair comprises a near-end connecting pair connector and a near-end connecting pair connector connected with the near-end connecting pair connector; the remote connection pair comprises a remote connection pair connector and a remote connection pair connector connected with the remote connection pair connector; the near-end connecting auxiliary connecting port and the far-end connecting auxiliary connecting port are both connected with an intermediate connecting rod; the near end connecting auxiliary connecting port is connected with the middle connecting rod, and the far end connecting auxiliary connecting port is connected with the middle connecting rod; the middle connecting rod comprises a screw, a sleeve, a knob, a hexagonal nut, an anti-rotation module and a stud bolt; the sleeve is connected with the knob to form a rod body main body of the middle connecting rod; the screw rod is connected with the proximal end of the proximal end connecting pair and is connected with the auxiliary connecting port; the stud is connected with a distal end connecting pair connecting port of the distal end connecting pair; the screw rod and the knob, the screw rod and the sleeve are all connected through a hexagonal nut, namely, the screw rod and the knob are connected through a hexagonal nut, the screw rod and the sleeve are connected through a hexagonal nut, and the hexagonal nut is connected with the screw rod and the knob, the screw rod and the sleeve.
Preferably, the connection pair is specifically a rotation connection pair, a universal connection pair or a ball connection pair.
Preferably, according to the degree of freedom of the treatment requirements, the external fixator can be arbitrarily selected from three different connecting pairs and installed at the proximal end and the distal end, so that nine different branched forms can be formed to meet various requirements.
Preferably, the rotary connection pair, the universal connection pair and the ball connection pair all comprise a connection pair connector and a connection pair connector; the connecting auxiliary connector of the rotary connecting pair is directly connected with the connecting auxiliary connector; the connecting auxiliary connector of the ball connecting pair is directly connected with the connecting auxiliary connector; the universal connection pair further comprises a universal cross structure; the connecting auxiliary connector of the universal connecting pair is connected with the connecting auxiliary connector through a universal cross structure.
Preferably, the sleeve is of a cylindrical structure on the outer part and is of a hexagonal through hole (namely a first hexagonal through hole) on the inner part; the hexagonal through holes (namely, first hexagonal through holes) comprise smaller hexagonal holes connected with the anti-rotation module and larger hexagonal holes connected with the far-end hexagonal nuts; the smaller hexagonal hole and the larger hexagonal hole of the sleeve form a boss, and are connected with the end face of the far-end hexagonal nut; the far end hexagon is connected with a hexagonal nut; the outer part of the proximal end of the sleeve is provided with a groove for connecting a knob.
Preferably, the lower side of the knob is provided with a two-claw clamping structure, and the minimum diameter of each claw is slightly larger than the groove formed outside the proximal end of the sleeve; the knob is installed with the sleeve from the side direction and can freely rotate; the middle of the knob is provided with a hexagonal through hole (namely a second hexagonal through hole), and a hexagonal nut is arranged.
Preferably, the proximal end of the screw is connected with the proximal end connecting auxiliary connecting port, and the distal end is tightly connected with the anti-rotation module so as to eliminate rotation.
Further, the outer fixation stent includes an outer fixation ring including an outer fixation proximal ring and an outer fixation distal ring.
Further, the proximal connection pair connects an outer anchor proximal ring; the distal connection pair is connected with the outer fixer distal ring.
Further, a proximal end connection pair connector of the proximal end connection pair is connected with the proximal end ring of the external fixator; the distal end connection pair connector of the distal end connection pair is connected with the outer fixer distal end ring.
Preferably, the inner side of the proximal end connecting auxiliary connector is provided with a through hole, the proximal end connecting auxiliary connector and the proximal end ring of the external fixator are connected by double-layer clamping, and the outer side of the proximal end connecting auxiliary connector and the connecting position of the proximal end connecting auxiliary connector are positioned on the same circle; the inner side of the far-end connecting auxiliary connector is provided with a through hole, the far-end connecting auxiliary connector and the far-end ring of the external fixator are connected by adopting double-layer clamping, and the outer side of the far-end connecting auxiliary connector and the connecting position of the far-end connecting auxiliary connector are positioned on the same circle.
Preferably, the screw depths of the three connecting auxiliary connectors of the rotary connecting pair, the universal connecting pair and the ball connecting pair are identical, and the lower bottom surfaces of the connecting auxiliary connectors are at the same height after the connecting auxiliary connectors are arranged on the ring.
Preferably, the hex nut comprises a proximal hex nut and a distal hex nut.
Preferably, the proximal hex nut and the distal hex nut are hex nuts of the same size; the hexagonal nuts are the same in size but have different functions, a near-end hexagonal nut arranged in the knob is connected with the screw rod, and the screw rod is moved by rotating the near-end hexagonal nut; the far-end hexagonal nut arranged at the far end of the sleeve is connected with one end of the stud bolt for being connected with the far-end connecting pair.
Preferably, the anti-rotation module is a hexagonal column and is embedded with the sleeve; the anti-rotation module is in sliding connection with the sleeve and can move in the sleeve, so that unidirectional freedom degree is provided for the screw.
The modular branched chain can be applied to an external fixing bracket and is used for forming an external fixing device meeting various requirements.
Compared with the prior art, the invention has the following beneficial effects:
1) The length of the sleeve and the screw rod of the modularized branched chain applied to the external fixing support can be changed according to an actual treatment scheme, the length of the screw rod determines the distance of the external fixing ring, and the length of the sleeve determines the treatment range. Meanwhile, according to the degree of freedom of the treatment requirement, the external fixator is arbitrarily selected from three different connecting pairs and is arranged at the proximal end and the distal end, so that nine different branched chain forms exist, and the external fixator can be formed to meet various requirements.
2) Compared with the existing devices in the market, the modularized branched chain applied to the external fixing support has better adaptability, and different treatment requirements can be met by replacing the module; the external fixator has better practicability, the composed external fixator is lighter in weight and simpler in structure, the burden of the external fixator in the treatment process of a patient is reduced, universality is improved, customization cost is reduced, and meanwhile, the diversity of treatment schemes is increased.
Drawings
FIG. 1 is an exploded view of a modular branched chain applied to an external fixation bracket according to a preferred embodiment of the present invention;
FIG. 2 is a schematic plan view in half section of an assembly of a modular branched chain applied to an external fixation bracket according to a preferred embodiment of the present invention;
FIG. 3 is a modular gimbal assembly of a modular branched chain for an external mount bracket according to a preferred embodiment of the present invention;
FIG. 4 is a modular ball-joint assembly of a modular branched chain applied to an external anchor bracket according to a preferred embodiment of the present invention;
in the figure:
A. the device comprises a near-end connecting pair, an A1 near-end connecting pair connector, an A2 near-end connecting pair connector, a B middle connecting rod, a B1 knob, a B2 near-end hexagonal nut, a B3 sleeve, a B4 far-end hexagonal nut, a B5 stud, a B6 screw, a B7 anti-rotation module, a C far-end connecting pair, a C1 far-end connecting pair connector, a C2 far-end connecting pair connector, an R, a rotating connecting pair, a U, a universal connecting pair, an S and a ball connecting pair.
Detailed Description
The invention will now be described in detail with reference to the drawings and specific examples. The following examples will assist those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any way. It should be noted that variations and modifications in the shape of the openings can be made by those skilled in the art without departing from the inventive concept. These are all within the scope of the present invention. Descriptions of well-known structures are omitted so as not to unnecessarily obscure the present invention in detail. It should be understood, however, that the detailed description and specific non-limiting examples, while indicating aspects of the invention, are given by way of illustration only and not by way of limitation. Various substitutions, modifications, additions and/or arrangements within the spirit and/or scope of the basic underlying concepts of the present invention will be apparent to those skilled in the art in light of the present disclosure. In the description of the present invention, it is noted that the terms "proximal", "proximal" and "proximal" mean the end that is close to the patient's head, i.e. the end that is closer to the torso, and "distal" mean the end that is distant from the patient's head, i.e. the end that is further from the torso.
The invention provides a modularized branched chain applied to an external fixed support, which comprises a near-end connecting pair, an intermediate connecting rod and a far-end connecting pair. The connecting pair is specifically a rotary connecting pair, a universal connecting pair or a ball connecting pair and comprises a connecting pair connector and a connecting pair connector respectively, wherein the connecting pair connector is used for being connected with a near end ring and a far end ring, and the connecting pair connector is used for being connected with an intermediate connecting rod; the middle connecting rod comprises a screw rod, a sleeve, a knob, a hexagonal nut and a stud. When the length of the branched chain needs to be adjusted, the knob is rotated to adjust. According to the invention, through the modularized design of the external fixator branched chains, the connection pair is adjusted according to a specific correction scheme, so that the problems of degree of freedom redundancy, complex structure, heavy device and the like when the traditional external fixator is in need of few degrees of freedom treatment are solved, a more targeted correction scheme can be provided, and the universality and the practicability of the external fixing support are improved.
In the technical scheme, the characteristics of preparation means, materials, structures or composition ratios and the like which are not explicitly described are regarded as common technical characteristics disclosed in the prior art.
Examples
1-4, the modularized branched chain applied to the external fixing support is composed of a near-end connecting pair A, an intermediate connecting rod B and a far-end connecting pair C, wherein the structure of the branched chain is shown in FIG. 1 and FIG. 2. The near-end connecting pair A comprises a near-end connecting pair connector A1 and a near-end connecting pair connector A2; the far-end connection pair C comprises a far-end connection pair connector C1 and a far-end connection pair connector C2; the middle connecting rod B comprises a knob B1, a proximal hexagonal nut B2, a sleeve B3, a distal hexagonal nut B4, a stud B5, a screw B6 and an anti-rotation module B7.
The near-end connecting auxiliary connector A1 is connected with the near-end connecting auxiliary connector A2; the far-end connecting auxiliary connector C1 is connected with the far-end connecting auxiliary connector C2; the near-end connecting auxiliary connecting port A2 is connected with the intermediate connecting rod B, and the far-end connecting auxiliary connecting port C2 is connected with the intermediate connecting rod B.
The middle connecting rod B comprises a screw rod B6, a sleeve B3, a knob B1, a hexagonal nut, an anti-rotation module B7 and a stud B5; the hexagonal nut comprises a proximal hexagonal nut B2 and a distal hexagonal nut B4; the sleeve B3 is connected with the knob B1 to form a rod body main body of the middle connecting rod B; the screw rod B6 is connected with the near end of the near end connecting pair A and the near end of the near end connecting pair A2; the stud B5 is connected with a distal connection pair connection port C2 of the distal connection pair C; screw rod B6 and knob B1, screw rod B6 and sleeve B3 all pass through the hex nut and connect, and screw rod B6 and knob B1 pass through near-end hex nut B2 to be connected, and screw rod B6 and sleeve B3 pass through distal end hex nut B4 to be connected.
The near-end connection pair A and the far-end connection pair C are respectively selected from one of a rotary connection pair R, a universal connection pair U or a ball connection pair S, the rotary connection pair R and the ball connection pair S are directly connected by a connection pair connector and a connection pair connector, and the universal connection pair U is connected with the connection pair connector and the connection pair connector through a universal cross structure besides the connection pair connector and the connection pair connector.
As shown in fig. 1 and 2, the proximal connection pair a and the distal connection pair C are both rotation connection pairs R.
As shown in fig. 3, the arrangement form of the universal connection pair U is shown in the figure, which is the proximal connection form of the universal connection pair U and the intermediate connection rod B, and the arrangement of the distal end is the same, and the rotating connection pair R of the proximal connection pair a and/or the rotating connection pair R of the distal connection pair C in fig. 1 and 2 may be replaced by the universal connection pair U in fig. 3.
As shown in fig. 4, the ball connecting pair S is provided, the ball connecting pair S is shown in the proximal connection form with the intermediate connecting rod B, the distal connection is the same, and the rotating connecting pair R of the proximal connecting pair a and/or the rotating connecting pair R of the distal connecting pair C in fig. 1 and 2 can be replaced by the ball connecting pair S in fig. 4.
The inner side of the proximal end connecting auxiliary connector A1 is provided with a through hole, the proximal end connecting auxiliary connector A1 is connected with the proximal end ring of the external fixator by double-layer clamping, and the outer side of the proximal end connecting auxiliary connector A1 and the connecting position of the proximal end connecting auxiliary connector A2 are positioned on the same circle; the inner side of the far-end connecting auxiliary connector C1 is provided with a through hole, the far-end connecting auxiliary connector C1 is connected with the far-end ring of the external fixator by double-layer clamping, and the outer side of the far-end connecting auxiliary connector C1 and the connecting position of the far-end connecting auxiliary connector C2 are positioned on the same circle.
The screw depths of the near-end connection auxiliary connection port A2 and the far-end connection auxiliary connection port C2 are identical, and after the near-end connection auxiliary connection port A2 and the far-end connection auxiliary connection port C2 are arranged on the ring, the lower bottom surfaces of the near-end connection auxiliary connection port A2 and the far-end connection auxiliary connection port C2 are at the same height.
The lower side of the knob B1 is provided with a two-claw clamping structure, and the minimum diameter of each claw is slightly larger than that of a groove formed outside the proximal end of the sleeve B3; the knob B1 is installed with the sleeve B3 from the side direction and can freely rotate; the middle of the knob B1 is provided with a second hexagonal through hole, and a near-end hexagonal nut B2 is installed.
The near-end hexagonal nut B2 is matched with the screw rod B6, the near end of the screw rod B6 is connected with the near-end connecting pair connection port A2 of the near-end connecting pair A, and the far end is tightly connected with the anti-rotation module B7 so as to eliminate rotation.
The anti-rotation module B7 is a hexagonal column and is embedded with the sleeve B3; the anti-rotation module B7 is in sliding connection with the sleeve B3 and can move in the sleeve B3 to provide unidirectional freedom for the screw rod B6.
The outside of the sleeve B3 is of a cylindrical structure, and the inside of the sleeve B3 is of a first hexagonal through hole; the first hexagonal through hole comprises a smaller hexagonal hole connected with the anti-rotation module B7 and a larger hexagonal hole connected with the far-end hexagonal nut (B4); the smaller hexagonal hole and the larger hexagonal hole of the sleeve B3 form a boss, and are connected with the end face of the far-end hexagonal nut B4; the far-end hexagonal nut B4 is connected with a stud B5; the other end of the stud B5 is connected with a distal connection pair connection port C2 of the distal connection pair C; the proximal end of the sleeve B3 is externally slotted and connected with a knob B1.
The assembly process of the present embodiment is specifically described below:
before the external fixing bracket is assembled, a treatment scheme is formulated according to treatment requirements. The angulation, lateral movement and rotation parameters of the affected bone are defined, and a configuration scheme meeting treatment conditions, namely a treatment scheme, can be screened through a matched algorithm, so that the treatment scheme is selected from three different connection pairs, a near-end connection pair A and a far-end connection pair C are selected, one end, close to the head of a patient, is defined as a near end, and one end, far away from the head of the patient, is defined as a far end. The connecting auxiliary connector is connected with the connecting auxiliary connector, namely the proximal connecting auxiliary connector A1 is connected with the proximal connecting auxiliary connector A2, the distal connecting auxiliary connector C1 is connected with the distal connecting auxiliary connector C2, and if the connecting auxiliary connector U is a universal cross structure, the connecting auxiliary connector U is also connected with the universal cross structure; the hexagonal nut B2 and the knob B1 are connected at the approaching end, the hexagonal nut is installed with the sleeve B3 from the side surface, and the claw of the knob B1 corresponds to the groove; the screw rod B6 is tightly connected with the anti-rotation module B7, is connected from the distal end of the sleeve B3, is matched with the proximal hexagonal nut B2 in the knob B1, and is rotatably installed until the screw rod B6 extends out of the knob, and is connected with the proximal connecting pair connection port A2 of the proximal connecting pair A; the far end of the sleeve B3 is fastened with a far end hexagonal nut B4; one end of the stud B5 is connected with the far-end hexagonal nut B4, and the other end is connected with the far-end connecting pair C. Finally, the outer fixing ring is connected according to the treatment scheme to form the outer fixer.
Embodiments of the invention are described so as to enable one of ordinary skill in the art to make and use the invention. It will be apparent to those skilled in the art that various modifications can be readily made to these embodiments and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above-described embodiments, and those skilled in the art, based on the present disclosure, should make improvements and modifications without departing from the scope of the present invention.
Although various embodiments have been described and illustrated herein, a variety of other devices and/or structures for performing functions and/or obtaining results and/or one or more of the advantages described herein will be readily apparent to those of ordinary skill in the art, and each of such variations and/or modifications is deemed to be within the scope of the embodiments described herein. More generally, those skilled in the art will readily appreciate that all parameters, dimensions, materials, and configurations described herein are meant to be exemplary and that the actual parameters, dimensions, materials, and/or configurations will depend upon the specific application or applications for which the teachings of the present invention is/are used. Those skilled in the art will recognize, or be able to ascertain using no more than routine experimentation, many equivalents to the specific embodiments described herein. It is, therefore, to be understood that the foregoing embodiments are presented by way of example only and that, within the scope of the appended claims and equivalents thereto, the embodiments may be practiced otherwise than as specifically described and claimed. Thus, each individual feature, system, article, material, kit, and/or method involved in the disclosed embodiments of the invention may be combined. Furthermore, if such features, systems, articles, materials, kits, and/or methods are not mutually inconsistent, any combination of two or more such features, systems, articles, materials, kits, and/or methods is included within the scope of the present disclosure. The corresponding structures, materials, acts, and equivalents of all means or step plus function elements in the claims below, if any, are intended to include any structure, material, or act for performing the function in combination with other claimed elements as specifically claimed. The description of the present invention has been presented for purposes of illustration and description, but is not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the invention. The embodiments were chosen and described in order to best explain the principles of one or more aspects of the invention and the practical application, and to enable others of ordinary skill in the art to understand the one or more aspects of the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (10)
1. A modular branched chain for external fixation support, characterized in that it comprises a connection pair and an intermediate connection rod;
the connecting pair comprises a proximal connecting pair (A) and a distal connecting pair (C);
the near-end connecting pair (A) comprises a near-end connecting pair connector (A1) and a near-end connecting pair connector (A2) connected with the near-end connecting pair connector (A1); the far-end connection pair (C) comprises a far-end connection pair connector (C1) and a far-end connection pair connector (C2) connected with the far-end connection pair connector (C1);
the near-end connecting auxiliary connecting port (A2) and the far-end connecting auxiliary connecting port (C2) are connected with the middle connecting rod (B);
the middle connecting rod (B) comprises a screw rod (B6), a sleeve (B3), a knob (B1), a hexagonal nut, an anti-rotation module (B7) and a stud bolt (B5);
the sleeve (B3) is connected with the knob (B1); the screw (B6) is connected with the near end of the near end connecting pair (A) and the near end of the screw is connected with the auxiliary connecting port (A2); the stud (B5) is connected with the far-end connecting pair (C) and the far-end connecting pair connecting port (C2); the screw (B6) is connected with the knob (B1), and the screw (B6) is connected with the sleeve (B3) through a hexagonal nut.
2. A modular branched chain for external fixation support according to claim 1, characterized in that the connection pair is a swivel connection pair (R), a universal connection pair (U) or a ball connection pair (S).
3. The modularized branched chain applied to the external fixing support according to claim 2, wherein the rotary connection pair (R), the universal connection pair (U) and the ball connection pair (S) comprise a connection pair connector and a connection pair connector;
the connecting auxiliary connector of the rotary connecting pair (R) is directly connected with the connecting auxiliary connector;
the connecting auxiliary connector of the ball connecting pair (S) is directly connected with the connecting auxiliary connector;
the universal connection pair (U) further comprises a universal cross structure;
the connecting auxiliary connector of the universal connecting pair (U) is connected with the connecting auxiliary connector through a universal cross structure.
4. A modular branched chain for external fixation support according to claim 1, characterized in that said hexagonal nuts comprise a proximal hexagonal nut (B2) and a distal hexagonal nut (B4);
the proximal hexagonal nut (B2) and the distal hexagonal nut (B4) are hexagonal nuts with the same size;
a proximal hexagonal nut (B2) mounted in the knob (B1) is connected with the screw (B6);
a distal hexagonal nut (B4) mounted on the distal end of the sleeve (B3) is connected to one end of the stud (B5) to be connected to the distal connection pair (C).
5. A modular branched chain for external fixation support according to claim 4, characterized in that said sleeve (B3) is externally cylindrical and internally hexagonal through holes;
the hexagonal through holes comprise smaller hexagonal holes connected with the anti-rotation module (B7) and larger hexagonal holes connected with the far-end hexagonal nuts (B4);
the smaller hexagonal hole and the larger hexagonal hole of the sleeve (B3) form a boss, and are connected with the end face of the far-end hexagonal nut (B4);
the far end hexagon is connected with a hexagonal nut;
the outer part of the proximal end of the sleeve (B3) is provided with a groove for connecting a knob (B1).
6. The modularized branched chain applied to the external fixing support according to claim 5, wherein the lower side of the knob (B1) is provided with a two-claw clamping structure, and the minimum diameter of each claw is larger than that of a groove formed outside the proximal end of the sleeve (B3);
the knob (B1) is installed with the sleeve (B3) from the side direction and can freely rotate;
the middle of the knob (B1) is provided with a hexagonal through hole, and a hexagonal nut is arranged.
7. A modular branched chain for use with an external fixation stent as in claim 1, wherein the external fixation stent comprises an external fixation proximal loop and an external fixation distal loop;
the proximal end connecting pair (A1) of the proximal end connecting pair (A) is connected with the proximal end ring of the external fixator;
the far-end connecting auxiliary connector (C1) of the far-end connecting pair (C) is connected with the far-end ring of the external fixator.
8. The modularized branched chain applied to the external fixing support according to claim 7, wherein a through hole is formed in the inner side of the proximal end connecting auxiliary connector (A1), the proximal end connecting auxiliary connector and the external fixing device are connected in a double-layer clamping mode, and the connecting position of the outer side of the proximal end connecting auxiliary connector (A1) and the connecting position of the proximal end connecting auxiliary connector (A2) are located on the same circle;
the inner side of the far-end connecting auxiliary connector (C1) is provided with a through hole, the far-end connecting auxiliary connector and the far-end ring of the external fixator are connected by double-layer clamping, and the outer side of the far-end connecting auxiliary connector (C1) and the connecting position of the far-end connecting auxiliary connector (C2) are positioned on the same circle.
9. A modular branched chain for external fixation support according to claim 1, characterized in that the screw (B6) is connected at the proximal end to a proximal connection sub-connection port (A2) and at the distal end to an anti-rotation module (B7) for eliminating rotation.
10. A modular branched chain for external fixation support according to claim 9, characterized in that said anti-rotation module (B7) is a hexagonal column, embedded with a sleeve (B3);
the anti-rotation module (B7) is in sliding connection with the sleeve (B3) and provides unidirectional freedom for the screw (B6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311217959.6A CN117064525A (en) | 2023-09-20 | 2023-09-20 | Modularized branched chain applied to external fixing support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311217959.6A CN117064525A (en) | 2023-09-20 | 2023-09-20 | Modularized branched chain applied to external fixing support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117064525A true CN117064525A (en) | 2023-11-17 |
Family
ID=88717134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311217959.6A Pending CN117064525A (en) | 2023-09-20 | 2023-09-20 | Modularized branched chain applied to external fixing support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117064525A (en) |
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2023
- 2023-09-20 CN CN202311217959.6A patent/CN117064525A/en active Pending
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