CN113786235A - Cross inverted triangle device for embedding compression screw for treating femoral neck fracture - Google Patents
Cross inverted triangle device for embedding compression screw for treating femoral neck fracture Download PDFInfo
- Publication number
- CN113786235A CN113786235A CN202110935825.2A CN202110935825A CN113786235A CN 113786235 A CN113786235 A CN 113786235A CN 202110935825 A CN202110935825 A CN 202110935825A CN 113786235 A CN113786235 A CN 113786235A
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- CN
- China
- Prior art keywords
- screw
- inverted triangle
- nails
- nail
- screw nail
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- 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.)
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Classifications
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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
- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
- A61B17/86—Pins or screws or threaded wires; nuts therefor
- A61B17/8625—Shanks, i.e. parts contacting bone tissue
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M31/00—Devices for introducing or retaining media, e.g. remedies, in cavities of the body
- A61M31/002—Devices for releasing a drug at a continuous and controlled rate for a prolonged period of time
Abstract
The invention discloses a crossed inverted triangle device for embedding a pressurizing screw nail for treating femoral neck fracture, which comprises two upper screw nails consisting of three screw nails and an inverted reversed 'pin' consisting of one lower screw nail, wherein the two upper screw nails and the lower screw nails form a crossed inverted triangle structure integrally, each screw nail comprises a rod part, a head part and a tail part, the outer wall of the head part is provided with a screw thread, the middle position of the tail part is provided with an open slot, the middle position of the rod part is provided with a plurality of small through holes, and the through holes are communicated with the center of the rod part. The invention has reasonable structural design, adopts a cross inverted triangle structure, arranges 2 screw nails above the inverted triangle mode in a cross mode to form 2 triangle planes, has large stress area, can bear larger pressure, reduces the risk of screw nail withdrawal, has good stabilizing effect, and arranges medicines in the through holes to diffuse outwards to promote fracture healing.
Description
Technical Field
The invention relates to the technical field of pressurizing threaded nails, in particular to a crossed inverted triangle device for embedding a pressurizing threaded nail for treating femoral neck fracture.
Background
Femoral neck fractures are a common disease. Especially, the old people can cause fracture by small external force due to the fact that the femoral neck is fragile and weak due to osteoporosis and is subjected to large stress. Fracture of the femoral neck in young and old years is caused by violence, such as vehicle impact or falling from a high place. At present, the femoral neck fracture is treated by adopting a femoral neck fixing nail for internal fixation operation, the traditional metal femoral neck fixing nail has poor fixing effect and poor stability of a fixing mode.
Disclosure of Invention
The invention provides a crossed inverted triangle device for embedding a pressurizing screw nail for treating femoral neck fracture, which solves the problems of the prior art, and comprises two upper screw nails consisting of three screw nails and an inverted reversed triangle formed by one lower screw nail, wherein the two upper screw nails and the lower screw nails form a crossed inverted triangle structure integrally, each screw nail comprises a rod part, a head part and a tail part, the outer wall of the head part is provided with a screw thread, the middle position of the tail part is provided with an open slot, the middle position of the rod part is provided with a plurality of small through holes, and the through holes are communicated with the center of the rod part.
Further, the threaded nail adopts three identical threaded nails.
Furthermore, the head part is extended outwards to form an extension part, and the extension part is of a trapezoidal structure.
Furthermore, drugs are filled in the through hole of the rod part, so that fracture healing is promoted.
Further, the diameter of the tail part is larger than that of the rod part.
Furthermore, the threaded nail is integrally formed by melting titanium alloy powder through electron beams.
By adopting the technical scheme, the method has the following beneficial effects:
the invention has reasonable structural design, adopts a cross inverted triangle structure, arranges 2 screw nails above the inverted triangle mode in a cross mode to form 2 triangle planes, has large stress area, can bear larger pressure, reduces the risk of screw nail withdrawal, has good stabilizing effect, and arranges medicines in the through holes to diffuse outwards to promote fracture healing.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural diagram of a use state of the present invention;
in the figure: 1-a rod part; 2-tail; 3-a head; 4-open slots; 5-a through hole; 6-an extension; 7-screw nail.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
Example 1: the cross inverted triangle device for placing the compression screw nail for treating femoral neck fracture as shown in fig. 1-2 comprises two upper screw nails 7 consisting of three screw nails 7 and an inverted 'pin' shape consisting of one lower screw nail 7, wherein the two upper screw nails 7 and the lower screw nails 7 form a cross inverted triangle structure integrally, the screw nails 7 comprise a rod part 1, a head part 3 and a tail part 2, the outer wall of the head part 3 is provided with a thread, the middle position of the tail part 2 is provided with an open slot 4, the middle position of the rod part 1 is provided with a plurality of small through holes 5, and the through holes 5 are communicated with the center of the rod part 1.
The screw nail 7 is formed by three identical screw nails 7, the head 3 is extended outwards to form an extension part 6, the extension part 6 is of a trapezoidal structure, medicines are placed in the through hole 5 of the rod part 1 to promote fracture healing, the diameter of the tail part 2 is larger than that of the rod part 1, and the screw nails 7 are integrally formed by titanium alloy powder through electron beam melting.
When in specific use, the same nailing points are adopted on both sides: drilling 1 Kirschner wire in parallel at a position 4cm below the femoral greater tuberosity, drilling another Kirschner wire upwards deviating by 15 degrees outwards at a position 2.5cm below the femoral greater tuberosity, drilling the rest Kirschner wire inwards downwards deviating by 15 degrees, ensuring that the Kirschner wires are not positioned on the same plane, confirming the position of the Kirschner wire through X-ray perspective, and if the inserting position is ideal, inserting a threaded nail 7 with proper length along each Kirschner wire; and if the placement position is not ideal, re-drilling the Kirschner wire until the placement position is ideal.
The invention has reasonable structural design, adopts a crossed inverted triangle structure, puts 2 screw nails 7 above the inverted triangle mode in a crossed mode to form 2 triangle planes, has large stress area, can bear larger pressure, reduces the risk of withdrawing the screw nails 7, has good stabilizing effect, puts medicines in the through holes 5, and promotes the fracture healing by diffusing the medicines in the through holes 5 outwards.
Having thus described the basic principles and principal features of the invention, it will be appreciated by those skilled in the art that the invention is not limited by the embodiments described above, which are given by way of illustration only, but that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.
Claims (5)
1. The utility model provides a treatment femoral neck fracture put into alternately inverted triangle device of pressurization screw nail, its characterized in that, two screw nails in top that constitute by three screw nail, inverted "article" font that a screw nail in below constitutes, two screw nails in top and the screw nail of below have formed alternately inverted triangle structure, the screw nail includes pole portion, head and afterbody, the head outer wall is equipped with the screw thread, the afterbody intermediate position is opened there is the open slot, the intermediate position of pole portion is opened there are a plurality of little through-holes, the through-hole link up with pole portion center mutually.
2. The device of claim 1, wherein the threaded nail comprises three identical threaded nails.
3. The device of claim 1, wherein the head portion is extended outwardly to form an extension, and the extension is of a trapezoidal configuration.
4. The device of claim 1, wherein the diameter of the tail portion is larger than the diameter of the shaft portion.
5. The device of claim 1, wherein the screw is integrally formed by melting titanium alloy powder by electron beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110935825.2A CN113786235A (en) | 2021-08-16 | 2021-08-16 | Cross inverted triangle device for embedding compression screw for treating femoral neck fracture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110935825.2A CN113786235A (en) | 2021-08-16 | 2021-08-16 | Cross inverted triangle device for embedding compression screw for treating femoral neck fracture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113786235A true CN113786235A (en) | 2021-12-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110935825.2A Pending CN113786235A (en) | 2021-08-16 | 2021-08-16 | Cross inverted triangle device for embedding compression screw for treating femoral neck fracture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113786235A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2335628A1 (en) * | 2009-12-17 | 2011-06-22 | Stryker Trauma GmbH | Therapeutic agent capsule for implants |
| CN202426636U (en) * | 2012-01-06 | 2012-09-12 | 张建林 | Trapezoidal locking steel plate with radian for treating femoral neck fracture |
| CN108836461A (en) * | 2018-05-08 | 2018-11-20 | 中国人民解放军总医院 | A kind of lock screw resetted for fracture of neck of femur |
| CN111419371A (en) * | 2020-04-15 | 2020-07-17 | 吴丹凯 | Cross-engaged proximal femoral intramedullary nail |
| CN211300278U (en) * | 2019-11-20 | 2020-08-21 | 潘治军 | Stable intramedullary fixing device for femoral neck fracture angle |
-
2021
- 2021-08-16 CN CN202110935825.2A patent/CN113786235A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2335628A1 (en) * | 2009-12-17 | 2011-06-22 | Stryker Trauma GmbH | Therapeutic agent capsule for implants |
| CN102100943A (en) * | 2009-12-17 | 2011-06-22 | 史赛克外伤有限责任公司 | Therapeutic agent capsule for implants |
| CN202426636U (en) * | 2012-01-06 | 2012-09-12 | 张建林 | Trapezoidal locking steel plate with radian for treating femoral neck fracture |
| CN108836461A (en) * | 2018-05-08 | 2018-11-20 | 中国人民解放军总医院 | A kind of lock screw resetted for fracture of neck of femur |
| CN211300278U (en) * | 2019-11-20 | 2020-08-21 | 潘治军 | Stable intramedullary fixing device for femoral neck fracture angle |
| CN111419371A (en) * | 2020-04-15 | 2020-07-17 | 吴丹凯 | Cross-engaged proximal femoral intramedullary nail |
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