CN215688345U - Customized tibia fixing rod - Google Patents
Customized tibia fixing rod Download PDFInfo
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- CN215688345U CN215688345U CN202023311605.2U CN202023311605U CN215688345U CN 215688345 U CN215688345 U CN 215688345U CN 202023311605 U CN202023311605 U CN 202023311605U CN 215688345 U CN215688345 U CN 215688345U
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Abstract
The utility model discloses a customized tibial fixing rod which is characterized by comprising a customized tibial fixing rod body, wherein the upper part of the customized tibial fixing rod body is provided with a tibial proximal medullary cavity connecting end, and the tibial proximal medullary cavity connecting end is provided with a plurality of first intramedullary nail holes; the lower part of the customized tibia fixing rod body is provided with a tibia far-end prosthesis, and a plurality of second intramedullary nail holes are formed in the tibia far-end prosthesis; the outer surface of the tail end of the tibia far-end prosthesis is conical, and an internal thread hole is formed in the tail end of the tibia far-end prosthesis along the axial direction; the outer surface of the middle part of the customized tibia fixing rod body is provided with a wing plate and a groove along the axial direction. The utility model has the advantages that the utility model is suitable for the prosthesis replacement of a patient with tibia far-end resection, the customized tibia fixing rod is implanted into a tibia marrow cavity, the intramedullary nail is connected and fixed with the tibia near end and the tibia, and the wing plate and the groove are axially arranged, so that the customized tibia fixing rod is implanted into the tibia more stably, and the stability in a medium-term and a long-term is good; the entire tibia does not need to be replaced, and the intact tibia is retained.
Description
Technical Field
The utility model belongs to the technical field of orthopedic medical instruments, and particularly relates to a customized tibial fixing rod.
Background
The tibia, which is an important weight-bearing bone of the human body, is a main component of the lower limb. The tibialis and subtalar joints serve as important components of the ankle-hindfoot complex and serve the functions of maintaining weight-bearing walking of the lower extremities and maintaining normal ankle mobility. However, secondary tibialis distal joint and subtalar joint lesions may be caused by trauma of ankle joints or hind feet and malignant bone tumors and other diseases, serious pain and walking dysfunction are caused, and for patients who cannot obtain satisfactory curative effect in conservative treatment, the pain can be better relieved and the function can be recovered through surgical treatment. If the focus is completely removed, the far end of the tibia and the ankle joint are replaced. Chinese patent application, application number CN202010820193.0, application number 2020.08.14, application publication number CN111870409A, application publication number 2020.11.03, a tibia distal end ankle joint prosthesis is disclosed, including medullary cavity extension handle, distal end ankle joint and diaphysis extension segment, diaphysis extension segment is installed between medullary cavity extension handle and distal end ankle joint, medullary cavity of tibia near-end is connected to medullary cavity extension handle, be equipped with 3D on the distal end ankle joint with the talus, be equipped with the trabecular structure of printing on the contact surface of fibula, the locking nail inserts the nail hole of distal end ankle joint and connects talus and fibula, can be with distal end ankle joint and talus and fibula fixed connection. The tibia far-end ankle joint prosthesis is suitable for ankle joint prosthesis replacement of a tibia far-end tumor resection patient, a 3D printing bone trabecula structure can effectively promote bone ingrowth, the prosthesis is more stable by combining a locking nail, and the initial bone ingrowth of the ankle joint prosthesis is fast and the stability of the ankle joint prosthesis in a medium-long period is good; when the tibia far-end ankle joint prosthesis is used, the whole tibia does not need to be replaced, the intact tibia is reserved, only the tibia with the focus is replaced, the length of the prosthesis is suitable for each patient due to the arrangement of the backbone extension section, and the manufacturing cost is reduced. In a certain case, except for the resection of the far end of the tibia and the ankle joint, the normal function of the tibia can only be reserved to the near end of the tibia, but the tibia part can be reserved as the inherent support of the calf, but the published patent application proposal needs to only reserve the near end part of the tibia after the tibia is resected and can not meet the clinical application requirement of the case, and a customized tibia fixing rod for connecting the near end of the tibia and the far end of the tibia needs to be implanted after the near end of the tibia and the tibia are reserved, so that the corresponding structure is not disclosed in the prior art.
SUMMERY OF THE UTILITY MODEL
1. Technical problem to be solved
Aiming at the problems that in the prior art, except for the fact that the far end of the tibia and the ankle joint need to be cut off in a certain case, the normal function of the tibia can only be reserved to the near end of the tibia, but the tibia part can be reserved to be used as the inherent support of the calf, but the patent application proposal disclosed above needs to cut off the tibia and only reserve the near end part of the tibia, and can not meet the clinical application requirements of the case, and a customized tibia fixing rod for connecting the near end of the tibia and the far end of the tibia needs to be implanted after the near end of the tibia and the tibia are reserved, and corresponding structures and the like are not disclosed in the prior art, the utility model aims to provide a customized tibia fixing rod which is suitable for the prosthesis replacement of a patient with the far end of the tibia cut off, the customized tibia fixing rod is implanted into a tibia marrow cavity, is connected and fixed with the near end of the tibia and the tibia through an intramedullary nail, and the customized tibia fixing rod is more stably implanted into the tibia through the arrangement of a wing plate and a groove along the axial direction, the stability in medium and long periods is good; need not to change whole shin bone, remain intact shin bone, the length of customization shin bone dead lever body designs according to every patient's size.
2. Technical scheme
In order to achieve the purpose and achieve the technical effect, the utility model adopts the following technical scheme:
a customized tibial fixing rod is characterized by comprising a customized tibial fixing rod body, wherein the upper part of the customized tibial fixing rod body is provided with a proximal tibial medullary cavity connecting end, and the proximal tibial medullary cavity connecting end is provided with a plurality of first intramedullary nail holes; the lower part of the customized tibia fixing rod body is provided with a tibia far-end prosthesis, and a plurality of second intramedullary nail holes are formed in the tibia far-end prosthesis; the outer surface of the tail end of the tibia far-end prosthesis is conical, and an internal thread hole is axially formed in the tail end of the tibia far-end prosthesis; the outer surface of the middle part of the customized tibia fixing rod body is provided with a wing plate and a groove along the axial direction.
In a specific embodiment of the utility model, the wing plate is disposed adjacent to the proximal tibial medullary cavity attachment end, the recess is disposed adjacent to the distal tibial prosthesis, and one end of the wing plate is disposed adjacent to one end of the recess.
In a specific embodiment of the utility model, the wing plates are arranged in a plurality along the radial direction of the customized tibial fixing rod, and the groove is arranged in a gap between two adjacent wing plates.
In a specific embodiment of the present invention, the customized tibial fixation rod body is made of titanium alloy and is prepared by 3D printing technology.
When the customized tibial fixing rod is used for a case, the lower internal thread hole of the customized tibial fixing rod body is connected with the guiding head of the customized tibial fixing rod external guider, the customized tibial fixing rod body is implanted into the marrow cavity of the tibia of a patient through the distal end of the tibia, the proximal tibia marrow cavity connecting end of the customized tibial fixing rod body is inserted into the proximal tibia marrow cavity, the intramedullary nail is screwed into the first intramedullary nail hole through the intramedullary nail positioning hole on the customized tibial fixing rod external guider, and the proximal tibia marrow cavity connecting end is connected and locked with the proximal tibia; and (3) screwing an intramedullary nail into a second intramedullary nail hole through an intramedullary nail positioning hole on the customized tibial fixing rod external guider, and connecting and locking the tibia and the customized tibial fixing rod body.
3. Advantageous effects
Compared with the prior art, the utility model has the advantages that the utility model is suitable for the prosthesis replacement of a patient with tibia far-end resection, the customized tibia fixing rod is implanted into a tibia marrow cavity, the intramedullary nail is connected and fixed with the tibia near end and the tibia, and the wing plate and the groove are axially arranged, so that the customized tibia fixing rod is implanted into the tibia more stably, and the stability of the customized tibia fixing rod in a medium-long period is good; need not to change whole shin bone, remain intact shin bone, the length of customization shin bone dead lever body designs according to every patient's size.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of a customized tibial fixation rod configuration of the present invention.
Fig. 2 is a schematic cross-sectional view of a tibial stem body according to the present invention.
In the figure: 1-tibia proximal medullary cavity connecting end; 2-a first intramedullary nail hole; 3-a distal tibial prosthesis; 4-a second intramedullary nail hole; 5-vertebral body; 6-an internal threaded hole; 7-wing plate; 8-groove.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the utility model, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the utility model.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in 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 specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "connected" are to be interpreted broadly, e.g. as a fixed connection, a detachable connection or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the utility model can be understood in specific cases to those of ordinary skill in the art.
As shown in fig. 1 and 2, the customized tibial fixing rod is characterized by comprising a customized tibial fixing rod body, wherein the upper part of the customized tibial fixing rod body is provided with a proximal tibial medullary cavity connecting end 1, and the proximal tibial medullary cavity connecting end 1 is provided with a plurality of first intramedullary nail holes 2; the lower part of the customized tibia fixing rod body is provided with a tibia far-end prosthesis 3, and a plurality of second intramedullary nail holes 4 are formed in the tibia far-end prosthesis 3; the outer surface of the tail end of the tibia far-end prosthesis 3 is provided with a vertebral body 5, and the tail end of the tibia far-end prosthesis 3 is provided with an internal thread hole 6 along the axial direction; the outer surface of the middle part of the customized tibial fixing rod body is provided with a wing plate 7 and a groove 8 along the axial direction.
The wing plate 7 is arranged adjacent to the proximal medullary cavity connecting end 1 of the tibia, the groove 8 is arranged adjacent to the distal tibia prosthesis 3, and one end of the wing plate 7 is arranged adjacent to one end of the groove 8.
The wing plates 7 are arranged in a plurality along the radial direction of the customized tibial fixing rod, and the groove 8 is arranged in the gap between two adjacent wing plates 7.
The customized tibia fixing rod body is made of titanium alloy and is prepared by a 3D printing technology.
When the customized tibial fixing rod is used for a case, the lower internal thread hole 6 of the customized tibial fixing rod body is connected with a guiding head of the customized tibial fixing rod external guider, the customized tibial fixing rod body is implanted into a patient's tibial marrow cavity from a tibial far end, the tibial proximal medullary cavity connecting end 1 of the customized tibial fixing rod body is inserted into a tibial proximal medullary cavity, an intramedullary nail is screwed into the first intramedullary nail hole 2 through an intramedullary nail positioning hole on the customized tibial fixing rod external guider, and the tibial proximal medullary cavity connecting end 1 is connected and locked with a tibial near end; and (3) the intramedullary nail is screwed into the second intramedullary nail hole 4 through the intramedullary nail positioning hole on the customized tibial fixing rod external guider, and the tibia is connected and locked with the customized tibial fixing rod body.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (4)
1. A customized tibial fixation rod, comprising: the customized tibial fixing rod comprises a customized tibial fixing rod body, wherein the upper part of the customized tibial fixing rod body is provided with a proximal tibial medullary cavity connecting end, and the proximal tibial medullary cavity connecting end is provided with a plurality of first intramedullary nail holes; the lower part of the customized tibia fixing rod body is provided with a tibia far-end prosthesis, and a plurality of second intramedullary nail holes are formed in the tibia far-end prosthesis; the outer surface of the tail end of the tibia far-end prosthesis is conical, and an internal thread hole is axially formed in the tail end of the tibia far-end prosthesis; the outer surface of the middle part of the customized tibia fixing rod body is provided with a wing plate and a groove along the axial direction.
2. The customized tibial fixation rod of claim 1, wherein: the wing plate is arranged adjacent to the connecting end of the proximal medullary cavity of the tibia, the groove is arranged adjacent to the distal prosthesis of the tibia, and one end of the wing plate is arranged adjacent to one end of the groove.
3. The customized tibial fixation rod of claim 2, wherein: the pterygoid lamina sets up a plurality of along the radial of customization shin bone dead lever, the recess sets up the space between two adjacent pterygoid laminas.
4. The customized tibial fixation rod of any of claims 1 to 3, wherein: the customized tibia fixing rod body is made of titanium alloy and is prepared by a 3D printing technology.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023311605.2U CN215688345U (en) | 2020-12-31 | 2020-12-31 | Customized tibia fixing rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023311605.2U CN215688345U (en) | 2020-12-31 | 2020-12-31 | Customized tibia fixing rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215688345U true CN215688345U (en) | 2022-02-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023311605.2U Active CN215688345U (en) | 2020-12-31 | 2020-12-31 | Customized tibia fixing rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215688345U (en) |
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2020
- 2020-12-31 CN CN202023311605.2U patent/CN215688345U/en active Active
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Address after: 201112 Room 102B, Building 2, No. 3576 Zhaolou Road, Minhang District, Shanghai Patentee after: Kuanyue Xinsheng Medical Technology (Shanghai) Co.,Ltd. Address before: Room 102b, building 2, 3576 Zhaolou Road, Minhang District, Shanghai 201100 Patentee before: THYTEC SHANGHAI Co.,Ltd. |