CN204306883U - Humeral intramedullary nail - Google Patents
Humeral intramedullary nail Download PDFInfo
- Publication number
- CN204306883U CN204306883U CN201420747674.3U CN201420747674U CN204306883U CN 204306883 U CN204306883 U CN 204306883U CN 201420747674 U CN201420747674 U CN 201420747674U CN 204306883 U CN204306883 U CN 204306883U
- Authority
- CN
- China
- Prior art keywords
- section
- nail
- angle
- hole
- far
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
This utility model relates to a kind of humeral intramedullary nail, for inserting in the medullary cavity of humerus from humerus summit cartilage layers, comprise near-end nail section and follow closely with near-end the far-end that section is connected and follow closely section, described near-end is followed closely in section and is had multiple locking screw thread hole, and described far-end is followed closely in section and had multiple unthreaded hole.This utility model humeral intramedullary nail, a) the locking screw thread hole of near-end nail section, many planes, multi-angle design, and the design of far-end nail section holes angulation, improves the self stability of intramedullary nail system, thus improve the stability of fracture site; B) near-end nail section adopts screw thread design for the locking nail hole implanted in proximal humerus spongy bone, effectively prevents the fixing pinning of single-side cortex from exiting risk; C) far-end nail section end is designed by oblique flat filament, is conducive to the implantation of intramedullary pin and more meets the anatomic form of human body humerus, effectively reducing the distortion of intramedullary pin in implantation process, thus improve the accuracy being injected screw by diopter.
Description
Technical field
This utility model relates to a kind of medical treatment device, particularly relates to a kind of humeral intramedullary nail.
Background technology
It is one of clinical middle more rare classification of fracture that proximal humeral fracture merges humeral shaft fracture, and its type is complicated, heals poor, if malpractice, will have a strong impact on daily life and the work of patient, brings painful and burden greatly to patient.At present, in clinical, the elongated PHILOS steel plate that adopts is treated more.
As everyone knows, Intramedullary nailing technology belongs to axis and fixes on mechanics, and its bending-twisting ability is far longer than steel plate, but, there is following defect in conventional intramedullary nails: a) single plane fixes proximal humeral fracture, is difficult to fixedly secure fracture site, is easily shifted; B) do not form locking mechanism between intramedullary pin and pinning, especially easily exit at the pinning of metaphysis or osteoporotic gerontal patient; C) the non-interlocking of far-end is fixed, and is difficult to the cripetura and the rotation displacement that control fracture end; D) due to human body humerus skeleton in lower 1/3 place have after bow, cause intramedullary pin to increase difficulty when implanting, and easily the risk of iatrogenic fracture occur.
Utility model content
The technical problems to be solved in the utility model is: in order to solve the problem that pinning easily exits from intramedullary pin, this utility model provides a kind of humeral intramedullary nail to solve the problems referred to above.
This utility model solves the technical scheme that its technical problem adopts: a kind of humeral intramedullary nail, for inserting in the medullary cavity of humerus from humerus summit cartilage layers, comprise near-end nail section and follow closely with near-end the far-end that section is connected and follow closely section, described near-end nail section has multiple locking screw thread hole, described far-end nail section has multiple unthreaded hole.Near-end nail section adopts screw thread design for the locking nail hole implanted in proximal humerus spongy bone, effectively prevents the fixing pinning of single-side cortex from exiting risk.
Multiple locking screw thread hole along described near-end nail section axial distribution and in described near-end nail section circumferentially not in same angle, multiple unthreaded hole along described far-end nail end axial distribution and in described far-end nail section circumferentially not in same angle.The locking screw thread hole of near-end nail section, many planes, multi-angle design, and the design of far-end nail section holes angulation, improves the self stability of intramedullary nail system, thus improve the stability of fracture site.
The end of described near-end nail section has cross bearing groove, screwed hole and location unthreaded hole, and described cross bearing slot is in the side away from near-end nail section, and described screwed hole and location unthreaded hole are coaxially and be connected.Cross bearing groove, screwed hole and location unthreaded hole are conveniently firmly arranged on by humeral intramedullary nail intramedullary pin to squeeze on the apparatus of human body.
Described near-end nail section extends to far-end nail section and has a central light aperture, and described far-end nail section has oblique flat filament away from one end of near-end nail section.Be conducive to the implantation of intramedullary pin and more meet the anatomic form of human body humerus, effectively reducing the distortion of intramedullary pin in implantation process, thus improving the accuracy by diopter pedicle screw, effectively reducing the risk of iatrogenic fracture.
Further, specifically, it is coaxial that described near-end nail section and far-end follow closely section, and described near-end nail section and far-end follow closely section junction tapering transition.
Specifically, described near-end nail segment length is 25-50mm, and described tapering transition segment length is 10-50mm.Far-end nail segment length can regulate according to the difference of human body humerus length.
Further, preferably, described near-end nail segment length is 30-40mm, and described tapering transition segment length is 20-40mm
Described locking screw thread hole has four, respectively is front square hole, brief summary knothole, rear square hole and humerus square hole along near-end nail section to the direction of far-end nail section; Described unthreaded hole has two, is followed successively by the first unthreaded hole and the second unthreaded hole along near-end nail section to the direction of far-end nail section.
Left and right dividing is had according to human body humerus anatomic form.
Left: described front orifice angle is clockwise 0-25 °, lesser tubercle orifice angle is clockwise 90 °, rear square hole angle is counterclockwise 45 °-65 °, described humerus square orifice angle is clockwise 10-40 ° and the axis angle that humerus square hole and near-end follow closely section is counterclockwise 75 °-85 °, the first described unthreaded hole angle is counterclockwise 90 °, and the second described unthreaded hole angle is clockwise 70 °-85 °.
Right: described front orifice angle is counterclockwise 0 °-25 °, lesser tubercle orifice angle is counterclockwise 90 °, rear square hole angle is clockwise 45 °-65 °, described humerus square orifice angle is counterclockwise 10-40 ° and the axis angle that humerus square hole and near-end follow closely section is counterclockwise 75 °-85 °, the first described unthreaded hole angle is clockwise 90 °, and the second described unthreaded hole angle is counterclockwise 70 °-85 °.
The beneficial effects of the utility model are, this utility model humeral intramedullary nail, a) the locking screw thread hole of near-end nail section, many planes, multi-angle design, the design of far-end nail section holes angulation, improves the self stability of intramedullary nail system, thus improves the stability of fracture site; B) near-end nail section adopts screw thread design for the locking nail hole implanted in proximal humerus spongy bone, effectively prevents the fixing pinning of single-side cortex from exiting risk; C) far-end nail section end is designed by oblique flat filament, be conducive to the implantation of intramedullary pin and more meet the anatomic form of human body humerus, the distortion of effective reduction intramedullary pin in implantation process, thus improve the accuracy being injected screw by diopter, effectively reduce the risk of iatrogenic fracture.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, this utility model is further illustrated.
Fig. 1 is the object construction figure of the optimum embodiment of this utility model humeral intramedullary nail,
Fig. 2 is the humeral intramedullary nail front view of this utility model for the left side,
Fig. 3 is the left view of this utility model for the humeral intramedullary nail on the left side,
Fig. 4 is the sectional view of A-A in Fig. 2,
Fig. 5 is the sectional view of B-B in Fig. 2,
Fig. 6 is the sectional view of C-C in Fig. 2,
Fig. 7 is the sectional view of D-D in Fig. 3,
Fig. 8 is the sectional view of E-E in Fig. 2,
Fig. 9 is the sectional view of F-F in Fig. 2;
Figure 10 is the humeral intramedullary nail front view of this utility model for the right,
Figure 11 is the left view of this utility model for the humeral intramedullary nail on the right,
Figure 12 is the sectional view of A-A in Fig. 9,
Figure 13 is the sectional view of B-B in Fig. 9,
Figure 14 is the sectional view of C-C in Fig. 9,
Figure 15 is the sectional view of D-D in Figure 11,
Figure 16 is the sectional view of E-E in Fig. 9,
Figure 17 is the sectional view of F-F in Fig. 9.
In figure 1, near-end nail section, 2, far-end nail section, 3, central light aperture, 4, front square hole, 5, brief summary knothole, 6, rear square hole, 7, humerus square hole, the 8, first unthreaded hole, the 9, second unthreaded hole, 11, cross bearing groove, 12, screwed hole, 13, location unthreaded hole, 21, oblique flat filament.
Detailed description of the invention
By reference to the accompanying drawings this utility model is described in further detail now.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present utility model are described in a schematic way, and therefore it only shows the formation relevant with this utility model.
As shown in Figure 1, a kind of humeral intramedullary nail of this utility model, for inserting in the medullary cavity of humerus from humerus summit cartilage layers, comprising near-end nail section 1 and following closely with near-end the far-end that section 1 is connected and following closely section 2, near-end nail section 1 has multiple locking screw thread hole, far-end nail section 2 has multiple unthreaded hole.
Multiple locking screw thread hole along described near-end nail section 1 axial distribution and in described near-end nail section 1 circumferentially not in same angle, multiple unthreaded hole along described far-end nail end 2 axial distribution and in far-end nail section 2 circumferentially not in same angle.
The end of near-end nail section 1 has cross bearing groove 11, screwed hole 12 and location unthreaded hole 13, and cross bearing groove 11 is positioned at the side away from near-end nail section 1, and screwed hole 12 and location unthreaded hole 13 are coaxially and be connected.
Central light aperture 3 is proximally followed closely section 1 section vertically and is extended to far-end nail section 2.Far-end nail section 2 has oblique flat filament 21 away from one end of near-end nail section 1.
It is coaxial that near-end nail section 1 and far-end follow closely section 2, and near-end nail section 1 follows closely section 2 junction tapering transition with far-end.
Near-end nail section 1 length is 25-50mm, and tapering transition segment length is 10-50mm.Being preferably near-end nail section 1 length is 30-40mm, and tapering transition segment length is 20-40mm, and especially following closely section 1 length at near-end is 35mm, and tapering transition segment length is 30mm.
Locking screw thread hole has four, respectively is front square hole 4, brief summary knothole 5, rear square hole 6 and humerus square hole 7 along near-end nail section to the direction of far-end nail section; Unthreaded hole has two, and the direction along near-end nail section 1 to far-end nail section 2 is followed successively by the first unthreaded hole 8 and the second unthreaded hole 9.
As shown in Fig. 2-Fig. 9, for left side: front square hole 4 angle is clockwise 0-25 °, brief summary knothole 5 angle is clockwise 90 °, rear square hole 6 angle is counterclockwise 45 °-65 °, humerus square hole 7 angle is clockwise 10-40 ° and the axis angle that humerus square hole 7 and near-end follow closely section 1 is counterclockwise 75 °-85 °, first unthreaded hole 8 angle is counterclockwise 90 °, and the second unthreaded hole 9 angle is clockwise 70 °-85 °.Especially front square hole 4 angle is 10 °, and rear square hole angle is 55 °, humerus square hole 7 angle be 25 ° and humerus square hole 7 and near-end to follow closely section 1 axis angle be counterclockwise 81 °, when the second unthreaded hole 9 is 72 °, effect is best.
As shown in Figure 10-Figure 17, for right side: front square hole 4 angle is counterclockwise 0 °-25 °, brief summary knothole 5 angle is counterclockwise 90 °, rear square hole 6 angle is clockwise 45 °-65 °, humerus square hole 7 angle is counterclockwise 10-40 ° and the axis angle that humerus square hole 7 and near-end follow closely section 1 is counterclockwise 75 °-85 °, first unthreaded hole 8 angle is clockwise 90 °, and the second unthreaded hole 9 angle is counterclockwise 70 °-85 °.Especially front square hole 4 angle is 10 °, and rear square hole angle is 55 °, humerus square hole 7 angle be 25 ° and humerus square hole 7 and near-end to follow closely section 1 axis angle be counterclockwise 81 °, when the second unthreaded hole 9 is 72 °, effect is best.
Wherein suitable, the counterclockwise deviation angle of front square hole 4, brief summary knothole 5, rear square hole 6, humerus square hole 7, first unthreaded hole 8 and the second unthreaded hole 9, be with humeral intramedullary nail horizontal positioned after horizontal plane be benchmark 0 °.Normal conditions, place during with oblique flat filament 21 down or upward and establish horizontal plane.
With above-mentioned according to desirable embodiment of the present utility model for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this utility model technological thought, can carry out various change and amendment completely.The technical scope of this utility model is not limited to the content in description, must determine its technical scope according to right.
Claims (10)
1. a humeral intramedullary nail, for inserting in the medullary cavity of humerus from humerus summit cartilage layers, it is characterized in that: comprise near-end nail section (1) and follow closely with near-end the far-end that section (1) is connected and follow closely section (2), described near-end nail section (1) has multiple locking screw thread hole, described far-end nail section (2) has multiple unthreaded hole.
2. humeral intramedullary nail according to claim 1, it is characterized in that: multiple locking screw thread hole along described near-end nail section (1) axial distribution and described near-end nail section (1) circumferentially not in same angle, multiple unthreaded hole along described far-end nail section (2) axial distribution and described far-end nail section (2) circumferentially not in same angle.
3. humeral intramedullary nail according to claim 1, it is characterized in that: the end of described near-end nail section (1) has cross bearing groove (11), screwed hole (12) and location unthreaded hole (13), described cross bearing groove (11) is positioned at the side away from near-end nail section (1), and described screwed hole (12) and location unthreaded hole (13) are coaxially and be connected.
4. humeral intramedullary nail according to claim 1, it is characterized in that: described near-end nail section (1) extends to far-end nail section (2) and has a central light aperture (3), and described far-end nail section (2) has oblique flat filament (21) away from one end of near-end nail section (1).
5. humeral intramedullary nail according to claim 1, is characterized in that: it is coaxial that described near-end nail section (1) and far-end follow closelys section (2), and described near-end follows closely section (1) and far-end follows closely section (2) junction tapering transition.
6. humeral intramedullary nail according to claim 1, is characterized in that: described near-end nail section (1) length is 25-50mm, and described tapering transition segment length is 10-50mm.
7. humeral intramedullary nail according to claim 6, is characterized in that: described near-end nail section (1) length is 30-40mm, and described tapering transition segment length is 20-40mm.
8. humeral intramedullary nail according to claim 1, it is characterized in that: described locking screw thread hole has four, along near-end nail section (1) to far-end, the direction of nail section (2) respectively is front square hole (4), brief summary knothole (5), rear square hole (6) and humerus square hole (7); Described unthreaded hole has two, and along near-end nail section (1) to far-end, the direction of nail section (2) is followed successively by the first unthreaded hole (8) and the second unthreaded hole (9).
9. humeral intramedullary nail according to claim 8, it is characterized in that: described front square hole (4) angle is clockwise 0-25 °, brief summary knothole (5) angle is clockwise 90 °, rear square hole (6) angle is counterclockwise 45 °-65 °, described humerus square hole (7) angle is clockwise 10-40 ° and the axis angle that humerus square hole (7) and near-end follow closely section (1) is counterclockwise 75 °-85 °, described the first unthreaded hole (8) angle is counterclockwise 90 °, and described the second unthreaded hole (9) angle is clockwise 70 °-85 °.
10. humeral intramedullary nail according to claim 8, it is characterized in that: described front square hole (4) angle is counterclockwise 0 °-25 °, brief summary knothole (5) angle is counterclockwise 90 °, rear square hole (6) angle is clockwise 45 °-65 °, described humerus square hole (7) angle is counterclockwise 10-40 ° and the axis angle that humerus square hole (7) and near-end follow closely section (1) is counterclockwise 75 °-85 °, described the first unthreaded hole (8) angle is clockwise 90 °, and described the second unthreaded hole (9) angle is counterclockwise 70 °-85 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420747674.3U CN204306883U (en) | 2014-12-02 | 2014-12-02 | Humeral intramedullary nail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420747674.3U CN204306883U (en) | 2014-12-02 | 2014-12-02 | Humeral intramedullary nail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204306883U true CN204306883U (en) | 2015-05-06 |
Family
ID=53129221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420747674.3U Active CN204306883U (en) | 2014-12-02 | 2014-12-02 | Humeral intramedullary nail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204306883U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104173098A (en) * | 2014-08-07 | 2014-12-03 | 上海市第一人民医院 | Intramedullary nail used for implanting in humerus bone marrow cavity |
| 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 |
-
2014
- 2014-12-02 CN CN201420747674.3U patent/CN204306883U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104173098A (en) * | 2014-08-07 | 2014-12-03 | 上海市第一人民医院 | Intramedullary nail used for implanting in humerus bone marrow cavity |
| 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 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207949887U (en) | A kind of orthopedic internal fixation system of modified form pedicle screw stick | |
| CN104352270A (en) | Bone connecting device for treating femoral neck fracture | |
| CN204072294U (en) | A kind of intramedullary pin for implanting humerus medullary cavity | |
| CN202146355U (en) | Femoral proximal triangular intramedullary nail | |
| CN204306883U (en) | Humeral intramedullary nail | |
| CN204260806U (en) | A kind of bone-knitting device for the treatment of fracture of femoral neck | |
| CN104688309A (en) | Humeral intramedullary nail | |
| CN202235646U (en) | Proximal femoral anatomical locking plate | |
| CN103800065A (en) | Malleolus medialis fixing steel plate system | |
| CN105213000A (en) | The fixed system for the treatment of fracture of the tibial plateau | |
| CN207970139U (en) | A kind of interlocking formula pedicle screw sighting device | |
| CN210019595U (en) | Intramedullary nail for femur | |
| CN205215333U (en) | Locking external fixation frame plate system is dissected to four limbs length bone fracture | |
| CN104173098A (en) | Intramedullary nail used for implanting in humerus bone marrow cavity | |
| CN204542341U (en) | A kind of DTS blade plate of drive pressurization | |
| CN205903300U (en) | Improved generation children epiphysis blocks 8 word steel sheets | |
| CN207804360U (en) | A kind of interlocking formula pedicle screw system | |
| CN204814140U (en) | PFNA intramedullary nail | |
| CN203598035U (en) | Dynamic hip screw with movable sleeve | |
| CN208799307U (en) | Percutaneous fixation device for intertrochanteric fracture | |
| CN202843775U (en) | Lesser trochanter reset fixture guiding device | |
| CN207912753U (en) | A kind of telescopic near end of thighbone attachment device | |
| CN204033457U (en) | A kind of modified form femoral intertrochanteric fixture | |
| CN208974080U (en) | The inside and outside double fixing screws of fracture | |
| CN209203377U (en) | A kind of soft tissue fixing belt line holdfast |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |