CN205626071U - Hollow rivet - Google Patents
Hollow rivet Download PDFInfo
- Publication number
- CN205626071U CN205626071U CN201620169935.7U CN201620169935U CN205626071U CN 205626071 U CN205626071 U CN 205626071U CN 201620169935 U CN201620169935 U CN 201620169935U CN 205626071 U CN205626071 U CN 205626071U
- Authority
- CN
- China
- Prior art keywords
- nail
- rivet nut
- head
- screw thread
- external screw
- 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
The utility model provides a hollow rivet belongs to the orthopedic medical devices field, including a nail body and the head of a nail, the junction of the nail body and the head of a nail is equipped with the gasket nail body and be self tapping sword head for hollow structure, the head end of the nail body, and the nail body is gone up along vertically being equipped with a notch, is equipped with the external screw thread on the nail is personally experienced sth. Part of the body. The utility model discloses simple structure, reasonable in design, the healing of fracture face closely can reduce and follow closely the not hard up incidence of deviating from even of the body behind the screw in, and effective improvement is in fixed stability and the reliability of spongy bone fracture, the patient's recovery from illness of fracturing with higher speed.
Description
Technical field
This utility model relates to orthopaedics medical instruments field, specifically a kind of hollow nail.
Background technology
Along with China's aged tendency of population, femoral neck fracture in elders sickness rate improves constantly, due to senile osteoporosis and neck of femur ischemia, it is susceptible to bone does not connect and femur head necrosis, therefore this fracture has become geriatrics important topic, along with improvement and the accumulation of operation skill of surgical condition, the lower advantages such as emergency treatment row double end pressurizing hollow screw internal fixation is short with its operating time, wound is little, hospital stays end, expense are low of C-arm perspective become the first-selection of basic hospital and patient.Existing hollow nail is that one end has screw thread, or there is screw thread at two ends, but owing to the most clinical conventional hollow screw exists the fixing insufficient strength of lifting, often results in postoperative fracture displacement, and screw loosening is deviate from, finally fixed unsuccessfully.Particularly with the femoral neck fracture in elders that clinic is common, owing to most of patients exists osteoporosis, common hollow nail is difficult to reach anti-rotation, the purpose of slide, the most often occurs that internal fixation hollow nail loosens the phenomenon of abjection.
Summary of the invention
In view of this, this utility model aims to provide a kind of simple in construction, reasonable in design, fracture face healing closely after screw-in, rivet nut can be reduced and loosen the incidence rate even deviate from, be effectively improved in the fixing stability of cancellous bone fracture and reliability, accelerate the hollow nail of fracture patient recovery from illness.
For reaching above-mentioned purpose, the technical solution of the utility model is achieved in that a kind of hollow nail, including a rivet nut and the head of a nail, described rivet nut is provided with a pad with the junction of the head of a nail, described rivet nut is hollow-core construction, the head end of described rivet nut is self-tapping blade, and along being longitudinally provided with a notch in described rivet nut, described rivet nut is provided with external screw thread.
Further, described notch is strip or zigzag.
Further, the upper part of described rivet nut is provided with coarse external screw thread, and the bottom of described rivet nut is provided with closely-pitched external screw thread.
Further, it is provided with projection between described coarse external screw thread and closely-pitched external screw thread.
Further, described pad is reclinate curved-surface structure.
Further, described pad is provided with air-vent.
Further, the described head of a nail is provided with yi word pattern, cross or quincuncial groove.
Further, the material of described rivet nut is Ti-6Al-4V, Ti-6Al-7Nb or 00Cr18Ni14Mo3.
Relative to prior art, this utility model has the advantage that
This utility model simple in construction, reasonable in design, fracture face healing after screw-in closely, it is possible to reduce rivet nut and loosen the incidence rate even deviate from, be effectively improved in the fixing stability of cancellous bone fracture and reliability, accelerate fracture patient recovery from illness.
Accompanying drawing explanation
The accompanying drawing constituting a part of the present utility model is further appreciated by of the present utility model for providing, and schematic description and description of the present utility model is used for explaining this utility model, is not intended that improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the structural representation of embodiment one.
Fig. 2 is the structural representation of the head of a nail of embodiment one.
Fig. 3 is the structural representation of the pad of embodiment one.
Fig. 4 is the structural representation of embodiment two.
Fig. 5 is the structural representation of the head of a nail of embodiment two.
In figure: 1, rivet nut；2, the head of a nail；3, groove；4, pad；5, air-vent；6, notch；7, coarse external screw thread；8, closely-pitched external screw thread；9, protruding.
Detailed description of the invention
It should be noted that in the case of not conflicting, the embodiment in this utility model and the feature in embodiment can be mutually combined.
In description of the present utility model, it will be appreciated that, term " " center ", " longitudinally ", " laterally ", on " ", D score, " front ", " afterwards ", " left ", " right ", " vertically ", " level ", " push up ", " end ", " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, it is for only for ease of description this utility model and simplifies description, rather than indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.Additionally, term " first ", " second " etc. are only used for describing purpose, and it is not intended that indicate or imply relative importance or the implicit quantity indicating indicated technical characteristic.Thus, the feature defining " first ", " second " etc. can express or implicitly include one or more this feature.In description of the present utility model, except as otherwise noted, " multiple " are meant that two or more.
In description of the present utility model, it should be noted that unless otherwise clearly defined and limited, term " is installed ", " being connected ", " connection " should be interpreted broadly, and connects for example, it may be fixing, it is also possible to be to removably connect, or be integrally connected；Can be to be mechanically connected, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, can be the connection of two element internals.For the ordinary skill in the art, above-mentioned term concrete meaning in this utility model can be understood by concrete condition.
Describe this utility model below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
Embodiment one
As Figure 1-3, a kind of hollow nail, including a rivet nut 1 and the head of a nail 2, the head of a nail 2 is provided with the groove 3 of yi word pattern, rivet nut 1 is provided with a pad 4 with the junction of the head of a nail 2, pad 4 is reclinate curved-surface structure, pad 4 is provided with air-vent 5, rivet nut 1 is hollow-core construction, the head end of rivet nut 1 is self-tapping blade, along being longitudinally provided with a notch 6 in rivet nut 1, notch 6 is strip, the upper part of rivet nut 1 is provided with coarse external screw thread 7, the bottom of rivet nut 1 is provided with closely-pitched external screw thread 8, protruding 9 it are provided with between coarse external screw thread 7 and closely-pitched external screw thread 8, the material of rivet nut 1 is Ti-6Al-4V.
The work process of the present embodiment: the self-tapping blade of the head end of rivet nut 1 is screwed in fracture, coarse thread 7 in rivet nut 1 and fine thread 8 lay respectively at the both sides in fracture face, protruding 9 contact with pulp cavity, pad 4 contacts with surface of bone, notch 6 deforms upon with pulp cavity, rivet nut can be reduced loosen, the incidence rate even deviate from, be effectively improved in the fixing stability of cancellous bone fracture and reliability.
Embodiment two
Such as Fig. 4, shown in 5, a kind of hollow nail, including a rivet nut 1 and the head of a nail 2, the head of a nail 2 is provided with cross groove 3, rivet nut 1 is provided with a pad 4 with the junction of the head of a nail 2, pad 4 is reclinate curved-surface structure, pad 4 is provided with air-vent 5, rivet nut 1 is hollow-core construction, the head end of rivet nut 1 is self-tapping blade, along being longitudinally provided with a notch 6 in rivet nut 1, notch 6 is zigzag, the upper part of rivet nut 1 is provided with coarse external screw thread 7, the bottom of rivet nut 1 is provided with closely-pitched external screw thread 8, protruding 9 it are provided with between coarse external screw thread 7 and closely-pitched external screw thread 8, the material of rivet nut 1 is 00Cr18Ni14Mo3.
The work process of the present embodiment: with embodiment one.
The foregoing is only preferred embodiment of the present utility model; not in order to limit this utility model; all within spirit of the present utility model and principle, any modification, equivalent substitution and improvement etc. made, within should be included in protection domain of the present utility model.
Claims (8)
1. a hollow nail, it is characterised in that: include that a rivet nut and the head of a nail, described rivet nut are provided with a pad with the junction of the head of a nail, described rivet nut is hollow-core construction, the head end of described rivet nut is self-tapping blade, and along being longitudinally provided with a notch in described rivet nut, described rivet nut is provided with external screw thread.
A kind of hollow nail the most according to claim 1, it is characterised in that: described notch is strip or zigzag.
A kind of hollow nail the most according to claim 1, it is characterised in that: the upper part of described rivet nut is provided with coarse external screw thread, and the bottom of described rivet nut is provided with closely-pitched external screw thread.
A kind of hollow nail the most according to claim 3, it is characterised in that: it is provided with projection between described coarse external screw thread and closely-pitched external screw thread.
A kind of hollow nail the most according to claim 1, it is characterised in that: described pad is reclinate curved-surface structure.
A kind of hollow nail the most according to claim 5, it is characterised in that: described pad is provided with air-vent.
A kind of hollow nail the most according to claim 1, it is characterised in that: the described head of a nail is provided with yi word pattern, cross or quincuncial groove.
8. according to a kind of hollow nail described in any one of claim 1-7, it is characterised in that: the material of described rivet nut is Ti-6Al-4V, Ti-6Al-7Nb or 00Cr18Ni14Mo3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620169935.7U CN205626071U (en) | 2016-03-07 | 2016-03-07 | Hollow rivet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620169935.7U CN205626071U (en) | 2016-03-07 | 2016-03-07 | Hollow rivet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205626071U true CN205626071U (en) | 2016-10-12 |
Family
ID=57077083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620169935.7U Active CN205626071U (en) | 2016-03-07 | 2016-03-07 | Hollow rivet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205626071U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019210774A1 (en) * | 2018-05-04 | 2019-11-07 | Hu Siwang | Medical anti-loosening screw based on organism osteogenesis function |
-
2016
- 2016-03-07 CN CN201620169935.7U patent/CN205626071U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019210774A1 (en) * | 2018-05-04 | 2019-11-07 | Hu Siwang | Medical anti-loosening screw based on organism osteogenesis function |
| US11369423B2 (en) | 2018-05-04 | 2022-06-28 | Siwang HU | Medical anti-loosening screw based on organism osteogenesis function |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2398410B1 (en) | Pediatric long bone support or fixation plate | |
| CN207949887U (en) | A kind of orthopedic internal fixation system of modified form pedicle screw stick | |
| CN204765887U (en) | Hollow rivet | |
| CN205626071U (en) | Hollow rivet | |
| CN205215333U (en) | Locking external fixation frame plate system is dissected to four limbs length bone fracture | |
| CN201642297U (en) | Femoral neck screw used for treatment of proximal femoral fractures | |
| Lung et al. | Subcapital femoral neck fracture following successful trochanteric fracture treatment with a dynamic hip screw: a report of five cases | |
| CN208799305U (en) | Inner fixing device for intertrochanteric fracture | |
| CN220608391U (en) | Femoral neck power cross nail plate system | |
| CN217244753U (en) | Sacroiliac screw | |
| CN217510585U (en) | Fixed angle positioning type locking screw | |
| CN211484860U (en) | Locking screw | |
| CN209153938U (en) | A kind of femoral bone tuberosity lateral wall protection steel plate | |
| CN203483490U (en) | Horizontal connection device of spine nail bar | |
| CN204671259U (en) | A kind of fibula locking bone fracture plate | |
| CN210673423U (en) | Reinforced pedicle screw | |
| CN215306576U (en) | Fastening piece | |
| CN209269854U (en) | A kind of fixation device of medical treatment Treatment of Tarsometatarsal Joint Injury | |
| CN212140567U (en) | Anatomical external fixation steel plate and fixation system for femoral neck fracture | |
| CN209464076U (en) | Shoulder blade lockplate | |
| CN208769970U (en) | A kind of microkinetic locking and pressurizing bone screw | |
| CN210871976U (en) | Rebuild lockplate | |
| CN106175899A (en) | Fibula intramedullary pin | |
| CN104905866A (en) | Hollow nail | |
| CN208784887U (en) | A kind of fracture of shaft of radius biplane locking steel plate with flank |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |