CN104173098A - Intramedullary nail used for implanting in humerus bone marrow cavity - Google Patents
Intramedullary nail used for implanting in humerus bone marrow cavity Download PDFInfo
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- CN104173098A CN104173098A CN201410386251.8A CN201410386251A CN104173098A CN 104173098 A CN104173098 A CN 104173098A CN 201410386251 A CN201410386251 A CN 201410386251A CN 104173098 A CN104173098 A CN 104173098A
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- humerus
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- square hole
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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
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/72—Intramedullary pins, nails or other devices
- A61B17/7233—Intramedullary pins, nails or other devices with special means of locking the nail to the bone
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- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Engineering & Computer Science (AREA)
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- General Health & Medical Sciences (AREA)
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- Surgical Instruments (AREA)
Abstract
The invention relates to an intramedullary nail used for implanting in a humerus bone marrow cavity and used for implanting in a humerus bone marrow cavity from a humerus top cartilage layer. The intramedullary nail comprises a nail body; the nail body is provided with a proximal end nail section and a remote end nail section connected with the proximal end; a plurality of locking holes distributed at different angles in the circumferential direction of the proximal end nail section are formed in the proximal end nail section; a power hole and a static force hole distributed at different angles in the circumferential direction of the remote end nail section are formed in the remote end nail section. The intramedullary nail can improve the stability of a bone fracture broken end, efficiently reduce stress of the remote end free end, and efficiently prevent the risk that an one-sided cortex fixed lock nail is retreated.
Description
Technical field
The present invention relates to a kind ofly for implanting the intramedullary pin of humerus medullary cavity, belong to medical instruments field.
Background technology
Proximal humeral fracture is one of fracture common in clinical, because its type is complicated, heals poor, has become the difficult point in orthopaedic trauma treatment.Generally speaking, 1 fracture of proximal humerus and 2 slight displacement fracture expectant treatment modes that adopt scarf bandage and plaster slab suspension more; 2 severe displaceds, the treatment of 3,4 fracture multirow internal fixation operations.
At present, internal fixation operation mainly adopts steel plate and intramedullary pin, as everyone knows, its fixed form of steel plate is eccentric fixing, it is placed on fracture end tension band position, so the bending-twisting Capability Requirement to steel plate itself is very high, in clinical, especially at humerus when not reaching desirable reset, after fixing in row steel plate, occur that the probability of disconnected plate is higher, and the object of intramedullary pin to be percutaneous implantable bone pulp cavity reached fixing fracture, it belongs to axis and fixes, bending-twisting ability will be far longer than steel plate, but, there is following defect in tradition intramedullary pin: a) single angle is placed pinning, fracture site is easily shifted, b) between intramedullary pin and pinning, do not form locking mechanism, especially at metaphyseal pinning, easily exit, c) far-end free end stress concentration, easily causes the generation of intramedullary pin fracture and iatrogenic fracture.
Summary of the invention
The object of the invention is to overcome the defect that prior art exists, provide a kind of can improve fracture site stability, effectively reduce far-end free end stress for implanting the intramedullary pin of humerus medullary cavity, and it can also effectively prevent that the fixing pinning of single-side cortex from exiting risk.
The technical solution adopted for the present invention to solve the technical problems is: a kind of for implanting the intramedullary pin of humerus medullary cavity, for inserting in the medullary cavity of humerus from head of humerus summit cartilage layers, it comprises rivet nut, this rivet nut has a near-end nail section and a far-end nail section being connected with near-end nail section, in described near-end nail section, be provided with some lock holes that distribute along its circumferential different angles, in described far-end nail section, be provided with power hole and the static(al) hole distributing along its circumferential different angles.
Described lock hole is provided with four, be respectively front square hole, brief summary knothole, rear square hole and humerus square hole, the angle of described front square hole is clockwise 0 °～25 °, the angle of brief summary knothole is clockwise 90 °, the angle of rear square hole is counterclockwise 45 °～65 °, the angle in humerus square hole is clockwise 10 °～40 °, and the angle α of the longitudinal axis of humerus square hole and rivet nut is 75 °～85 °.
The angle in described power hole is clockwise 5 °～20 °, and the angle in described static(al) hole is 0 °.
Described lock hole is provided with four, be respectively front square hole, brief summary knothole, rear square hole and humerus square hole, the angle of described front square hole is counterclockwise 0 °～25 °, the angle of described brief summary knothole is counterclockwise 90 °, the angle of described rear square hole is clockwise 45 °～65 °, the angle in described humerus square hole is counterclockwise 10 °～40 °, and the angle α of the longitudinal axis of humerus square hole and rivet nut is 75 °～85 °.
The angle in described power hole is counterclockwise 5 °～20 °, and the angle in described static(al) hole is 0 °.
Described lock hole is screwed hole.
In described far-end nail section, be provided with somely along its axially extended jag groove, circumferentially annular is uniform along it for these jag grooves.
On the end face of described near-end nail section, be provided with centre bore, in the middle and lower part of this center bore inner wall, be provided with screw thread, on the end face of described near-end nail section, be also provided with at least one locating slot.
Described near-end nail section is coaxial with far-end nail section, and tapering transition.
Beneficial effect: a) this product designs by the many planes of the some lock holes of near-end, multi-angle, far-end two hole angulation designs, have improved the self stability of intramedullary nail system, thereby have improved the stability of fracture site; B) near-end adopts screw thread design for implanting lock hole in proximal humerus spongy bone, between pinning and intramedullary pin, by screw thread, revolve and, can effectively prevent that the fixing pinning of single-side cortex from exiting risk; C) far-end free end jag design, has reduced far-end free end stress, effectively reduces the risk of intramedullary pin fracture and iatrogenic fracture.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
Fig. 1 is the perspective view of the preferred embodiments of the present invention two;
Fig. 2 is the main TV structure schematic diagram of the preferred embodiments of the present invention one;
Fig. 3 is that enlarged drawing is looked on a left side of Fig. 2;
Fig. 4 is the cutaway view of preferred embodiment one;
Fig. 5 is the amplification view along A-A line in Fig. 2;
Fig. 6 is the amplification view along B-B line in Fig. 2;
Fig. 7 is the amplification view along C-C line in Fig. 2;
Fig. 8 is the amplification view along D-D line in Fig. 3;
Fig. 9 is the amplification view along E-E line in Fig. 2;
Figure 10 is the amplification view along F-F line in Fig. 2;
Figure 11 is the amplification view along G-G line in Fig. 2;
Figure 12 is the structural representation of the preferred embodiments of the present invention two;
Figure 13 is that enlarged drawing is looked on a left side of Figure 12;
Figure 14 is the cutaway view of preferred embodiment two;
Figure 15 is the amplification view along A-A line in Figure 12;
Figure 16 is the amplification view along B-B line in Figure 12;
Figure 17 is the amplification view along C-C line in Figure 12;
Figure 18 is the amplification view along D-D line in Figure 13;
Figure 19 is the amplification view along E-E line in Figure 12;
Figure 20 is the amplification view along F-F line in Figure 12;
Figure 21 is the amplification view along G-G line in Figure 12.
The specific embodiment
As shown in Figure 1 a kind of for implanting the intramedullary pin of humerus medullary cavity, for inserting in the medullary cavity of humerus from head of humerus summit cartilage layers, it comprises rivet nut 1, this rivet nut 1 has a near-end nail section and a far-end nail section being connected with near-end nail section, described near-end nail section is coaxial with far-end nail section, and tapering transition.
In described near-end nail section, be provided with some lock holes 2,3,4,5 that distribute along its circumferential different angles, described lock hole 2,3,4,5 is screwed hole.In described far-end nail section, be provided with power hole 6 and the static(al) hole 7 distributing along its circumferential different angles.
This intramedullary pin has left and right dividing, the here left intramedullary pin of called after and right intramedullary pin according to human body humerus anatomic form.
Preferred embodiment one is left intramedullary pin: as shown in Fig. 2～10, described lock hole 2,3,4,5 is provided with four, is respectively front square hole 2, brief summary knothole 3, rear square hole 4 and humerus square hole 5.The angle of described front square hole 2 is clockwise 0 °～25 °, preferentially selects 10 °; The angle of brief summary knothole 3 is clockwise 90 °; The angle of rear square hole 4 is counterclockwise 45 °～65 °, preferentially selects 55 °; The angle in humerus square hole 5 is clockwise 10 °～40 °, preferentially selects 25 °, and the angle α of the central axis 51 in humerus square hole 5 and the longitudinal axis 11 of rivet nut 1 is 75 °～85 °, preferentially selects 81 °.The angle in described power hole 6 is clockwise 5 °～20 °, preferentially selects 15 °～20 °, particularly 18 °; The angle in described static(al) hole 7 is 0 °.Except humerus square hole 5, all the other porose central axis are all vertical with the longitudinal axis 11 of rivet nut 1.
Preferred embodiment two is right intramedullary pin: as shown in Figure 11～19, described lock hole 2,3,4,5 is provided with four, is respectively front square hole 2, brief summary knothole 3, rear square hole 4 and humerus square hole 5.The angle of described front square hole 2 is counterclockwise 0 °～25 ° and preferentially selects 10 °; The angle of described brief summary knothole 3 is counterclockwise 90 °; The angle of described rear square hole 4 is clockwise 45 °～65 °, preferentially selects 55 °; The angle in described humerus square hole 5 is counterclockwise 10 °～40 °, preferentially selects 25 °, and the angle α of the central axis 51 in humerus square hole 5 and the longitudinal axis 11 of rivet nut 1 is 75 °～85 °, preferentially selects 81 °.The angle in described power hole 6 is counterclockwise 5 °～20 °, preferentially selects 15 °～20 °, particularly 18 °; The angle in described static(al) hole 7 is 0 °.Except humerus square hole 5, all the other porose central axis are all vertical with the longitudinal axis 11 of rivet nut 1.
In described far-end nail section, be provided with four along its axially extended jag groove 8, circumferentially annular is uniform along it for these jag grooves 8.
On the end face of described near-end nail section, be provided with centre bore 9, in the middle and lower part of these centre bore 9 inwalls, be provided with screw thread, on the end face of described near-end nail section, be also provided with three locating slots 10.
Described near-end nail segment length is 25～50mm, preferentially selects 30～40mm, particularly 35mm; Described far-end nail segment length is 60～110mm, preferentially selects 80～90mm, particularly 85mm; Described tapering transition segment length is 10～50mm, preferentially selects 20～40mm, particularly 30mm.
This intramedullary pin comprises four lock holes, but those skilled in the art should know intramedullary pin, can comprise the lock hole of arbitrary number.
Should be appreciated that specific embodiment described above, only for explaining the present invention, is not intended to limit the present invention.The apparent variation of being extended out by spirit of the present invention or change are still among protection scope of the present invention.
Claims (9)
1. one kind for implanting the intramedullary pin of humerus medullary cavity, for inserting in the medullary cavity of humerus from head of humerus summit cartilage layers, it comprises rivet nut (1), this rivet nut (1) has a near-end nail section and a far-end nail section being connected with near-end nail section, it is characterized in that: in described near-end nail section, be provided with some lock holes (2,3,4,5) that distribute along its circumferential different angles, in described far-end nail section, be provided with power hole (6) and static(al) hole (7) that distribute along its circumferential different angles.
2. according to claim 1 for implanting the intramedullary pin of humerus medullary cavity, it is characterized in that: described lock hole (2,3,4,5) be provided with four, be respectively front square hole (2), brief summary knothole (3), rear square hole (4) and humerus square hole (5), the angle of described front square hole (2) is clockwise 0 °～25 °, the angle of brief summary knothole (3) is clockwise 90 °, the angle of rear square hole (4) is counterclockwise 45 °～65 °, the angle in humerus square hole (5) is clockwise 10 °～40 °, and humerus square hole (5) is 75 °～85 ° with the angle α of the longitudinal axis (11) of rivet nut (1).
3. according to claim 2 for implanting the intramedullary pin of humerus medullary cavity, it is characterized in that: the angle in described power hole (6) is clockwise 5 °～20 °, and the angle in described static(al) hole (7) is 0 °.
4. according to claim 1 for implanting the intramedullary pin of humerus medullary cavity, it is characterized in that: described lock hole (2, 3, 4, 5) be provided with four, be respectively front square hole (2), brief summary knothole (3), rear square hole (4) and humerus square hole (5), the angle of described front square hole (2) is counterclockwise 0 °～25 °, the angle of described brief summary knothole (3) is counterclockwise 90 °, the angle of described rear square hole (4) is clockwise 45 °～65 °, the angle in described humerus square hole (5) is counterclockwise 10 °～40 °, and humerus square hole (5) is 75 °～85 ° with the angle α of the longitudinal axis (11) of rivet nut (1).
5. according to claim 4 for implanting the intramedullary pin of humerus medullary cavity, it is characterized in that: the angle in described power hole (6) is counterclockwise 5 °～20 °, and the angle in described static(al) hole (7) is 0 °.
6. according to claim 1 for implanting the intramedullary pin of humerus medullary cavity, it is characterized in that: described lock hole (2,3,4,5) is screwed hole.
7. according to claim 1 for implanting the intramedullary pin of humerus medullary cavity, it is characterized in that: in described far-end nail section, be provided with somely along its axially extended jag groove (8), circumferentially annular is uniform along it for these jag grooves (8).
8. according to claim 1 for implanting the intramedullary pin of humerus medullary cavity, it is characterized in that: on the end face of described near-end nail section, be provided with centre bore (9), middle and lower part at this centre bore (9) inwall is provided with screw thread, on the end face of described near-end nail section, is also provided with at least one locating slot (10).
9. according to claim 1 for implanting the intramedullary pin of humerus medullary cavity, it is characterized in that: described near-end nail section is coaxial with far-end nail section, and tapering transition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410386251.8A CN104173098A (en) | 2014-08-07 | 2014-08-07 | Intramedullary nail used for implanting in humerus bone marrow cavity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410386251.8A CN104173098A (en) | 2014-08-07 | 2014-08-07 | Intramedullary nail used for implanting in humerus bone marrow cavity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104173098A true CN104173098A (en) | 2014-12-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410386251.8A Pending CN104173098A (en) | 2014-08-07 | 2014-08-07 | Intramedullary nail used for implanting in humerus bone marrow cavity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104173098A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105997218A (en) * | 2016-06-29 | 2016-10-12 | 江苏艾迪尔医疗科技股份有限公司 | Humeral inverted intramedullary nail |
| CN111529032A (en) * | 2020-06-02 | 2020-08-14 | 林凤飞 | Reinforced torsion-resistant interlocking intramedullary nail suite |
| KR20220129342A (en) * | 2021-03-16 | 2022-09-23 | 임진용 | Fracture fixation apparatus |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2112384U (en) * | 1992-01-03 | 1992-08-12 | 江苏省人民医院 | Fish-mouth type locked intramedullary nail |
| EP0824013A1 (en) * | 1995-01-27 | 1998-02-18 | Societe Civile Soirie | Modular femoral prosthesis with variable geometry, in particular for reconstruction |
| CN2343985Y (en) * | 1998-09-01 | 1999-10-20 | 常州市康辉医疗器械有限公司 | Locked intramedullary nail with distal locating platform |
| CN1798529A (en) * | 2003-04-09 | 2006-07-05 | 辛迪思有限公司 | Intramedullary nail for femur fracture fixation |
| CN201631360U (en) * | 2009-10-27 | 2010-11-17 | 林雪林 | Dynamically fixed type shinbone interlocking intramedullary nail |
| CN102149343A (en) * | 2008-08-12 | 2011-08-10 | 坦图姆股份公司 | Short pin for taking care of epiphysis fractures |
| CN102525629A (en) * | 2012-03-23 | 2012-07-04 | 冀原 | Elastic interlocking intramedullary nail fixed in fractured bone |
| CN103006304A (en) * | 2011-09-22 | 2013-04-03 | 苏州瑞华医院有限公司 | Static and dynamic exchange-type thighbone interlocking intramedullary nail |
| CN103370021A (en) * | 2011-02-14 | 2013-10-23 | 新特斯有限责任公司 | Intramedullary nail having self-retaining compression slot |
| CN204072294U (en) * | 2014-08-07 | 2015-01-07 | 上海市第一人民医院 | A kind of intramedullary pin for implanting humerus medullary cavity |
| CN204306883U (en) * | 2014-12-02 | 2015-05-06 | 创生医疗器械（中国）有限公司 | Humeral intramedullary nail |
-
2014
- 2014-08-07 CN CN201410386251.8A patent/CN104173098A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2112384U (en) * | 1992-01-03 | 1992-08-12 | 江苏省人民医院 | Fish-mouth type locked intramedullary nail |
| EP0824013A1 (en) * | 1995-01-27 | 1998-02-18 | Societe Civile Soirie | Modular femoral prosthesis with variable geometry, in particular for reconstruction |
| CN2343985Y (en) * | 1998-09-01 | 1999-10-20 | 常州市康辉医疗器械有限公司 | Locked intramedullary nail with distal locating platform |
| CN1798529A (en) * | 2003-04-09 | 2006-07-05 | 辛迪思有限公司 | Intramedullary nail for femur fracture fixation |
| CN102149343A (en) * | 2008-08-12 | 2011-08-10 | 坦图姆股份公司 | Short pin for taking care of epiphysis fractures |
| CN201631360U (en) * | 2009-10-27 | 2010-11-17 | 林雪林 | Dynamically fixed type shinbone interlocking intramedullary nail |
| CN103370021A (en) * | 2011-02-14 | 2013-10-23 | 新特斯有限责任公司 | Intramedullary nail having self-retaining compression slot |
| CN103006304A (en) * | 2011-09-22 | 2013-04-03 | 苏州瑞华医院有限公司 | Static and dynamic exchange-type thighbone interlocking intramedullary nail |
| CN102525629A (en) * | 2012-03-23 | 2012-07-04 | 冀原 | Elastic interlocking intramedullary nail fixed in fractured bone |
| CN204072294U (en) * | 2014-08-07 | 2015-01-07 | 上海市第一人民医院 | A kind of intramedullary pin for implanting humerus medullary cavity |
| CN204306883U (en) * | 2014-12-02 | 2015-05-06 | 创生医疗器械（中国）有限公司 | Humeral intramedullary nail |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105997218A (en) * | 2016-06-29 | 2016-10-12 | 江苏艾迪尔医疗科技股份有限公司 | Humeral inverted intramedullary nail |
| CN111529032A (en) * | 2020-06-02 | 2020-08-14 | 林凤飞 | Reinforced torsion-resistant interlocking intramedullary nail suite |
| CN111529032B (en) * | 2020-06-02 | 2021-06-08 | 林凤飞 | Reinforced torsion-resistant interlocking intramedullary nail suite |
| KR20220129342A (en) * | 2021-03-16 | 2022-09-23 | 임진용 | Fracture fixation apparatus |
| KR102612924B1 (en) * | 2021-03-16 | 2023-12-12 | 주식회사 트라디쏠 | Fracture fixation apparatus |
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Application publication date: 20141203 |