CN205094567U - Hollow intramedullary nail of shin bone - Google Patents
Hollow intramedullary nail of shin bone Download PDFInfo
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- CN205094567U CN205094567U CN201520925133.XU CN201520925133U CN205094567U CN 205094567 U CN205094567 U CN 205094567U CN 201520925133 U CN201520925133 U CN 201520925133U CN 205094567 U CN205094567 U CN 205094567U
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- intramedullary pin
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- tibia
- nail
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Abstract
The utility model relates to a hollow intramedullary nail of shin bone, including main nail, the main both ends of following closely are a near -end and one respectively and are applicable to the distal end that inserts in the pulp cavity, near -end and distal end between be equipped with bent angle alpha and hollow tube column structure as an organic whole, near -end and distal end all be equipped with a plurality of cross interlocking holes, cross interlocking hole axis mutually perpendicular, and with main to follow closely the axis perpendicular, the near -end of intramedullary nail still be equipped with spongy bone pinning hole, the beneficial effects are that: the guide pin can be put into in advance to hollow cast in the operation, conveniently restore to the throne and the implantation of intramedullary nail, also can expand the marrow as required, patient's spongy bone has fully been protected in the design of spongy bone lockhole, has shortened rehabilitation time, the design in cross interlocking hole realizes the cross locking, prevents axial displacement and rotation, and is anti rotatory, anti not hard up, has increased fixed stability. (B, ) (sub /) (b)
Description
Technical field
This utility model relates to field of medical products, particularly relates to the hollow intramedullary pin of a kind of tibia.
Background technology
Cure in surgical operation in fracture, in the far-end of knochenbruch and the pulp cavity of near-end, insert inner matter---the intramedullary pin that the thing compatibility in all one's life is good, intensity is high.Not only can reach the connection of fracture end and fixing object, and patient can exempt the hardship of extenal fixation, can carry out functional exercise in early days in medical treatment, therefore light is general is applied in clinical practice for intramedullary pin.Tibial intramedullary nailing is exactly the intramedullary pin being applied to fracture of tibia.
The shortcoming of existing tibial intramedullary nailing is: (1) owing to needing the bone marrow sucking-off of tibia before insertion intramedullary pin, and then inserts intramedullary pin, and this action need long time, also causes very large misery to patient simultaneously.
(2) tibial intramedullary nailing is mainly used in treatment long bone two sections fracture, if treatment more than three sections fracture or comminuted fracture, Chang Shuzhong, the rotation of postoperative normal generation fracture, axis and lateral separation displacement, loosen de-nail phenomenon.Several sections of fracture, comminuted fracture are often because of closed reduction difficulty, and intramedullary pin effectively can not solve axial force, side force and shearing problem; Send out disease incidence rate higher, mostly occur malunion simultaneously, the movement of the case fracture end You≤1cm of 1/2,1/4 solid failure.
(3) existing tibial intramedullary nailing is all fixed on cortical bone, and the spongy bone ignoring near-end is fixed, thus make the healing rate of spongy bone be much more slowly than the healing rate of cortical bone, simultaneously because spongy bone is not fixed, in agglutination, spongy bone is easy to sustain damage and produces very large harm to patient.
Summary of the invention
The technical problems to be solved in the utility model is: providing a kind of has good therapeutic effect to several sections of fracture, comminuted fracture, easy to operate, and simultaneously to the tibial intramedullary nailing that spongy bone is fixed.
This utility model is for achieving the above object, the technical scheme provided is as follows: the hollow intramedullary pin of a kind of tibia, comprises main nail, and main nail two ends are respectively a near-end and a far-end be applicable in insertion pulp cavity, be provided with bent angle α between described near-end and far-end, and be integrated hollow tubular structures; The bent angle α of described near-end and far-end is 6 ° ~ 12 °; The convenient guide pin that inserts in advance that arranges of hollow tubular structures resets, and can also carry out expansion marrow, convenient insertion before insertion intramedullary pin.
Further, in order to increase the stability of fracture, solve axial force, side force and shearing problem, described near-end and far-end are equipped with some Cross locking holes, and Cross locking axially bored line is mutually vertical, and with main nail axes normal.
Further, in order to effectively protect the spongy bone of the close end of tibia, the near-end of described intramedullary pin is also provided with spongy bone locking nail hole, and the angle β between described spongy bone locking nail hole axis and near-end axis is 70 ° ~ 85 °.
Further, in order to can better tibia and main nail be fixed, described near-end and far-end are also provided with two-way locating hole, can be fixed as required.
In order to realize there is not too large friction between main nail end and the tibia of patient, and avoid the broken bone of end to fall into hollow intramedullary pin, the hollow intramedullary pin of described tibia also comprises the sealing cap being arranged on main nail proximal end.
Further, if occur in the middle part of tibia occur fracture or more than three sections fracture or comminuted fracture, then need to be fixed in the middle part of tibia, in order to realize this object, the unidirectional locating hole of axis and main nail axes normal can be provided with between described near-end Cross locking hole and far-end Cross locking hole.
The hollow intramedullary pin material of this utility model tibia is preferably titanium alloy material, and its strength of materials, elasticity and biocompatibility aspect are all better than same specification stainless steel.
The hollow intramedullary pin of this utility model tibia has the following advantages relative to prior art:
(1) this utility model intramedullary pin is hollow pipe type, can insert guide pin in advance in operation, and the implantation of convenient reset and intramedullary pin, also can expand marrow as required; In addition, select intramedullary pin length specification according to guide pin length optional, shorten operating time, alleviate the misery of patient;
(2) design in Cross locking hole realizes cross locking, prevents axial displacement and rotation, anti-rotation, loosing prevention, adds fixing stability;
(3) design of spongy bone lockhole, adequately protected the spongy bone of patient, shortens rehabilitation duration;
(4) design of two-way locating hole, can better fix tibia and main nail;
(5) design of the unidirectional locating hole in the middle part of intramedullary pin makes the scope of application of the hollow intramedullary pin of tibia more extensive.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the C-C partial sectional view of Fig. 1;
Fig. 3 is the system diagram that this utility model is installed with corresponding screw.
Detailed description of the invention
As shown in Figures 1 to 3, for structural representation of the present utility model, the hollow intramedullary pin of a kind of tibia is related in figure, comprise main nail, main nail two ends are respectively a near-end 1 and a far-end 2 be applicable in insertion pulp cavity, it is characterized in that: be provided with bent angle α between described near-end 1 and far-end 2, and be integrated hollow tubular structures; Described near-end 1 and the bent angle α of far-end 2 are 6 ° ~ 12 °; The convenient guide pin that inserts in advance that arranges of hollow tubular structures resets, and can also carry out expansion marrow, convenient insertion before insertion intramedullary pin; Meanwhile, can select the intramedullary pin of suitable dimension fast, decrease operating time according to guide pin length, the operation alleviating patient is painful.
In order to increase the stability of fracture, solve axial force, side force and shearing problem, described near-end 1 and far-end 2 are equipped with some Cross locking holes (11,21), Cross locking hole (11,21) axis is mutually vertical, and with main nail axes normal, prevent axial displacement and rotation, anti-rotation, loosing prevention, adds fixing stability.
In order to effectively protect the spongy bone of the close end of tibia, the near-end 1 of described intramedullary pin is also provided with spongy bone locking nail hole 13, and the angle β between described spongy bone locking nail hole axis and near-end axis is 70 ° ~ 85 °.
In order to can better tibia and main nail be fixed, described near-end 1 and far-end 2 are also provided with two-way locating hole (12,22), can be fixed as required.
In order to realize there is not too large friction between main nail end and the tibia of patient, and avoid the broken bone of end to fall into hollow intramedullary pin, the hollow intramedullary pin of described tibia also comprises the sealing cap 3 being arranged on main nail proximal end.
Further, if occur in the middle part of tibia occur fracture or more than three sections fracture or comminuted fracture, then need to be fixed in the middle part of tibia, in order to realize this object, the unidirectional locating hole 4 of axis and main nail axes normal can be provided with between described near-end interlocking hole and far-end Cross locking hole.
The hollow intramedullary pin material of this utility model tibia is preferably titanium alloy material, and its strength of materials, elasticity and biocompatibility aspect are all better than same specification stainless steel.
Obviously, above-described embodiment is only for this utility model example is clearly described, and is not the restriction to embodiment of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.And these belong to spirit institute's apparent change of extending out of the present utility model or change and are still among protection domain of the present utility model.
Claims (7)
1. the hollow intramedullary pin of tibia, comprise main nail, main nail two ends are respectively a near-end (1) and a far-end (2) be applicable in insertion pulp cavity, it is characterized in that: be provided with bent angle α between described near-end (1) and far-end (2), and be integrated hollow tubular structures;
Described near-end (1) and far-end (2) are equipped with some Cross locking holes (11,21);
Described near-end (1) is also provided with spongy bone locking nail hole (13).
2. the hollow intramedullary pin of tibia according to claim 1, is characterized in that: the angle β between described spongy bone locking nail hole (12) axis and near-end axis is 70 ° ~ 85 °.
3. the hollow intramedullary pin of tibia according to claim 1, is characterized in that: described near-end (1) is mutually vertical with the axis in the Cross locking hole (11,21) of far-end (2), and with main nail axes normal.
4. the hollow intramedullary pin of tibia according to claim 1, is characterized in that: described near-end (1) and the bent angle α of far-end (2) are 6 ° ~ 12 °.
5. the hollow intramedullary pin of tibia according to claim 1, is characterized in that: described near-end (1) and far-end (2) are also provided with two-way locating hole (12,22).
6. the hollow intramedullary pin of tibia according to claim 1, is characterized in that: also comprise the sealing cap (3) being arranged on main nail proximal end.
7. the hollow intramedullary pin of tibia according to claim 1, is characterized in that: the unidirectional locating hole (4) being provided with axis and main nail axes normal between described near-end Cross locking hole (11) and far-end Cross locking hole (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520925133.XU CN205094567U (en) | 2015-11-18 | 2015-11-18 | Hollow intramedullary nail of shin bone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520925133.XU CN205094567U (en) | 2015-11-18 | 2015-11-18 | Hollow intramedullary nail of shin bone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205094567U true CN205094567U (en) | 2016-03-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520925133.XU Expired - Fee Related CN205094567U (en) | 2015-11-18 | 2015-11-18 | Hollow intramedullary nail of shin bone |
Country Status (1)
| Country | Link |
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| CN (1) | CN205094567U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106175899A (en) * | 2016-06-29 | 2016-12-07 | 江苏艾迪尔医疗科技股份有限公司 | Fibula intramedullary pin |
| CN106618710A (en) * | 2017-02-20 | 2017-05-10 | 广东工业大学 | Proximal fixation intramedullary nail matched with femur medullary cavity in shape |
| CN107343813A (en) * | 2016-05-06 | 2017-11-14 | 天津正天医疗器械有限公司 | Ilium intramedullary nail and sacrum ilium fixing device |
| CN107669327A (en) * | 2017-11-08 | 2018-02-09 | 南方医科大学南方医院 | Possesses minimally invasive and support function non-expanding bone intramedullary nail for treating femoral fracture |
| CN108378913A (en) * | 2018-04-04 | 2018-08-10 | 上海市同济医院 | Improve proximal femoral nail |
| CN108771561A (en) * | 2018-07-09 | 2018-11-09 | 常州华森医疗器械有限公司 | A kind of anti-rotation type intramedullary nail |
| CN109480988A (en) * | 2018-12-05 | 2019-03-19 | 常州市康辉医疗器械有限公司 | A kind of improved interlocking formula tibial intramedullary nailing |
-
2015
- 2015-11-18 CN CN201520925133.XU patent/CN205094567U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107343813A (en) * | 2016-05-06 | 2017-11-14 | 天津正天医疗器械有限公司 | Ilium intramedullary nail and sacrum ilium fixing device |
| CN106175899A (en) * | 2016-06-29 | 2016-12-07 | 江苏艾迪尔医疗科技股份有限公司 | Fibula intramedullary pin |
| CN106618710A (en) * | 2017-02-20 | 2017-05-10 | 广东工业大学 | Proximal fixation intramedullary nail matched with femur medullary cavity in shape |
| CN107669327A (en) * | 2017-11-08 | 2018-02-09 | 南方医科大学南方医院 | Possesses minimally invasive and support function non-expanding bone intramedullary nail for treating femoral fracture |
| CN108378913A (en) * | 2018-04-04 | 2018-08-10 | 上海市同济医院 | Improve proximal femoral nail |
| CN108771561A (en) * | 2018-07-09 | 2018-11-09 | 常州华森医疗器械有限公司 | A kind of anti-rotation type intramedullary nail |
| CN109480988A (en) * | 2018-12-05 | 2019-03-19 | 常州市康辉医疗器械有限公司 | A kind of improved interlocking formula tibial intramedullary nailing |
| CN109480988B (en) * | 2018-12-05 | 2024-02-23 | 常州市康辉医疗器械有限公司 | Improved interlocking tibia intramedullary nail |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 213000 Changzhou, Jiangsu new North District, Jinsha River Road, No. 10 Patentee after: Dean medical technology Ltd Address before: 213000 Changzhou, Jiangsu new North District, Jinsha River Road, No. 10 Patentee before: Changzhou Dean Medical Machinery Co., Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160323 Termination date: 20181118 |
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| CF01 | Termination of patent right due to non-payment of annual fee |