CN206102724U - Thighbone near -end marrow internal fixation device based on spiral nail - Google Patents
Thighbone near -end marrow internal fixation device based on spiral nail Download PDFInfo
- Publication number
- CN206102724U CN206102724U CN201620739255.4U CN201620739255U CN206102724U CN 206102724 U CN206102724 U CN 206102724U CN 201620739255 U CN201620739255 U CN 201620739255U CN 206102724 U CN206102724 U CN 206102724U
- Authority
- CN
- China
- Prior art keywords
- nail
- spiral nail
- spiral
- pinning
- hole
- 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
Landscapes
- Prostheses (AREA)
Abstract
The utility model discloses a thighbone near -end marrow internal fixation device based on spiral nail, in the marrow main nail, spiral nail, cortex bone screw, compress tightly pinning and tail cap, main nail has the near -end and has most advanced distal end in the marrow, the near -end extends to the distal end to be angle setting, the near -end have with the first through -hole of spiral nail complex, first through -hole axis and near -end are angle setting, the distal end have with cortex bone screw complex second through -hole, main nail upper end has the screw hole in the marrow, and the screw hole compresses tightly the pinning lower extreme and compresses tightly spiral nail, tail cap and screw hole threaded connection from last to being provided with the tail cap and compressing tightly the pinning down to compress tightly the pinning, the spiral nail front end is screw thread portion, has on the spiral nail and compresses tightly pinning lower extreme complex step face. Through the step face on the spiral nail with compress tightly pinning cooperation, prevent effectively that the spiral nail from withdrawing from or preventing that the spiral nail from piercing through the thighbone bulb.
Description
Technical field
This utility model is related to medical instruments field, and more particularly to a kind of near end of thighbone Medullary fixation based on spiral nail is filled
Put.
Background technology
Chinese patent (CN2011200614876) discloses a kind of near end of thighbone nail rod pinning system, discloses the system
It is made up of main nail, the hollow self-taped type pinning of near-end, distal end self-taped type pinning and main nail tail cap, wherein main nail is in elongated tubular, main nail
Top it is thicker, for coordinating with the hollow self-taped type pinning of near-end, the bottom of main nail is thinner, for matching somebody with somebody with distal end self-taped type pinning
Close.When using, in the pulp cavity that main nail bottom is vertically inserted on femur after, respectively the hollow self-taped type pinning of near-end is screwed in into main nail
Top, distal end self-taped type pinning screws in main nail bottom, and screws in main nail tail cap in the upper end of main nail, so as to reach to fracturing
Femur implement fixed therapeutic effect.
Because the grasping force of the hollow self-taped type pinning of near-end is limited, particularly anti-rotation poor performance is prolonged using possible
The phenomenon that the hollow self-taped type pinning of near-end is exited can occur, surgical effect is affected.
Utility model content
Main purpose of the present utility model there are provided a kind of simple structure, prevent that spiral nail from exiting based on spiral nail
Near end of thighbone Medullary fixation device.
To reach object above, this utility model provides a kind of near end of thighbone Medullary fixation device based on spiral nail,
It includes：Main nail, spiral nail, os integumentale screw, compression pinning and tail cap in marrow, main nail has near-end and with point in the marrow
The distal end at end, the proximal extension to the distal end, and angled setting；
The near-end has the first through hole coordinated with the spiral nail, and the first through hole axis is in the near-end
50 °～65 ° settings, the distal end has the second through hole coordinated with the os integumentale screw；
Master nails on end with screwed hole in the marrow, and the screwed hole is provided with from top to bottom the tail cap and the compression
Pinning, the compression pinning lower end compresses the spiral nail, and the tail cap is threadedly coupled with the screwed hole, and compresses the pressure
Tight pinning；
The spiral nail front end is threaded portion, has the step coordinated with the compression pinning lower end on the spiral nail
Face.
In one embodiment, the step surface is in arc-shaped, and the compression pinning lower end has at least one arc surface.
In one embodiment, the compression pinning lower end has two arc surfaces, and is symmetrical arranged.
In one embodiment, the compression pinning lower end is plugged on the step surface, and the compression pinning lower end sets
It is equipped with a jack coordinated with the step surface.
In one embodiment, the threaded portion front end closing, is evenly arranged with multiple water on the outer wall of the threaded portion
Mud hole.
In one embodiment, also including bone cement delivery pipe, the bone cement delivery pipe front end closing, the bone cement
An orifice is provided with conveying pipe outer wall；
The bone cement delivery pipe front end can be inserted in the threaded portion from the spiral nail rear end.
In one embodiment, also including bone cement delivery pipe, the bone cement delivery pipe front end closing, the bone cement
Multiple orifices are evenly arranged with conveying pipe outer wall.
In one embodiment, second through hole is in long pass.
In one embodiment, the section of the first through hole is rounded, the upper and lower both sides of the edge difference of the first through hole
It is provided with stress relief grooves.
In one embodiment, the stress relief grooves are curved.
According to preferred embodiment, this utility model is offered the advantage that：
(1) this utility model is by the step surface on spiral nail and compresses pinning and coordinates, effectively prevent spiral nail from exiting or
Person prevents spiral nail from penetrating femur bulb.
(2) multiple cement holes are provided with the outer wall of the threaded portion of spiral nail of the present utility model, by defeated with bone cement
Send pipe to use cooperatively, can uniformly fill inside femur.
(3) it is of the present utility model for being provided with stress relief grooves in the first through hole that coordinates with spiral nail, resist axle
To load, bending force and torsion, the fracture of its junction is prevented, extend use time.
This utility model is further illustrated below in conjunction with drawings and Examples.
Description of the drawings
Fig. 1 is the structural representation of the near end of thighbone Medullary fixation device based on spiral nail described in the utility model；
Fig. 2 is the sectional view of the near end of thighbone Medullary fixation device based on spiral nail described in the utility model；
Fig. 3 is the structural representation of main nail in marrow described in the utility model；
Fig. 4 is spiral nail described in the utility model and compresses the structural representation that pinning coordinates；
Fig. 5 is the topology view of compression pinning first embodiment described in the utility model；
Fig. 6 is the topology view of compression pinning second embodiment described in the utility model；
Fig. 7 is the topology view of compression pinning 3rd embodiment described in the utility model；
Fig. 8 is the sectional view that compression pinning 3rd embodiment described in the utility model coordinates with spiral nail；
Fig. 9 is bone cement delivery pipe described in the utility model.
Specific embodiment
Hereinafter describe for disclosing the present invention so that those skilled in the art can realize the present invention.It is excellent in below describing
Embodiment is selected to be only used as citing, it may occur to persons skilled in the art that other obvious modifications.Define in the following description
Ultimate principle of the invention can apply to other embodiments, deformation program, improvement project, equivalent and without the back of the body
From the other technologies scheme of the spirit and scope of the present invention.
Refering to Fig. 1 to Fig. 8, show according to a kind of according to this utility model preferred embodiment based on spiral nail
Near end of thighbone Medullary fixation device, it includes：Main nail 100, spiral nail 200, os integumentale screw 300, the compression and of pinning 500 in marrow
Tail cap 400, main nail 100 has near-end and with cuspidated distal end in marrow, and proximal extension is to distal end, and angled setting, near-end
It is thicker relative to distal end；
Near-end has the first through hole 101 coordinated with spiral nail 200, and the axis of first through hole 101 is in 50 °～65 ° with near-end
Arrange, distal end has the second through hole 102 coordinated with os integumentale screw 300；
100 upper ends of main nail have screwed hole 103 in marrow, and screwed hole 103 is provided with from top to bottom tail cap 400 and compresses pinning
500, compress the lower end of pinning 500 and compress spiral nail 200, tail cap 400 is threadedly coupled with screwed hole 103, and compression pinning
500；
The front end of spiral nail 200 is threaded portion, has on spiral nail 200 and compresses the step surface that the lower end of pinning 500 coordinates
201。
The structure of said spiral nail 200 can be the structure as combined pinning in Chinese patent (CN2009100318070),
Assembled using multiple parts.It can also be the integral structure in Fig. 1.Had using the spiral nail 200 of integral structure
Higher intensity, is easy to operate and processes.
Coordinated with spiral nail 200 by compressing pinning 500, effectively prevent spiral nail 200 from exiting from first through hole 101,
And affect surgical effect.Specifically, the two ends of step surface 201 limit compression pinning 500 and skid off from step surface 201, prevent spiral shell
Rotation nail 200 exits or penetrates femur bulb.
As shown in figure 5, step surface 201 is in arc-shaped, compresses the lower end of pinning 500 and there is an arc surface 501 to coordinate with it.
Realize that the compression lower end of pinning 500 completes card and matches somebody with somebody with step surface 201, and more firm compression.
Further, as shown in fig. 6, compressing the lower end of pinning 500 has two arc surfaces 501, and it is symmetrical arranged.Prevent from working as
When compressing the screw-in screwed hole 103 of pinning 500, the arc surface 501 is set to match somebody with somebody with the card of step surface 201 because of directionality problem.Pass through
The appearance that two arc surfaces 501 avoid the problems referred to above is set.
As shown in Figure 7 and Figure 8, compress pinning 500 to be plugged on step surface 201, compress the lower end of pinning 500 and be provided with one
The jack 502 coordinated with step surface 201.
As shown in figure 1, being provided with multiple cement holes 202 on threaded portion.Bone cement is injected into femoral head by cement hole,
From the strength and stability for strengthening near end of thighbone, it is easy to the recovery of near end of thighbone.
Specifically, threaded portion front end closing, cement hole 202 is uniformly arranged on the outer wall of threaded portion.Bone cement is by more
Individual cement hole 202 is uniformly extruded, and diseased region can be caused pressurized uniform, so as to improve surgical effect.In prior art, cement hole
202 front ends for being provided in threaded portion, bone cement is injected forward, causes the uneven of both sides, can to a certain extent affect stock
The recovery of proximal bone.Also result near end of thighbone local pressure higher, and cause the adverse consequencess such as pain in operation in patients.
As shown in figure 9, the closing of the front end of bone cement delivery pipe 600, is provided with an orifice on the outer wall of bone cement delivery pipe 600
601.Orifice 601 is adjacent with the front end of bone cement delivery pipe 600.
When using, the front end of bone cement delivery pipe 600 penetrates from the rear end of spiral nail 200, inside threaded portion.Work as femoral head
When certain position of head needs to fill bone cement, only need to be relative with the position respectively by orifice 601 and a cement hole 202.
Correspondingly, the closing of the front end of bone cement delivery pipe 600, on the outer wall of bone cement delivery pipe 600 multiple notes are evenly arranged with
Hole 601.
As shown in figure 3, the second through hole 102 is in long pass.
The section of first through hole 101 is rounded, and first through hole is respectively arranged with stress relief grooves in both sides of the edge about 101
104.Stress relief grooves 104 are curved.Because the setting of first through hole 101 causes 100 outer walls of main nail and first through hole 101 in marrow
Between it is relatively thin, it may occur that breakage phenomenon, and affect using effect.Therefore by arranging stress relief grooves 104, intensity is increased,
Improve service efficiency.
Embodiment described above is merely to illustrate technological thought of the present utility model and feature, its object is to make ability
Technical staff in domain will appreciate that content of the present utility model and implement according to this, it is impossible to only limit this practicality with the present embodiment
New the scope of the claims is adopted, i.e., equal change or modification that all spirit according to disclosed in this utility model is made, is still fallen at this
In the scope of the claims of utility model.
Claims (10)
1. a kind of near end of thighbone Medullary fixation device based on spiral nail, it is characterised in that：It includes main nail (100), spiral shell in marrow
Rotation nail (200), os integumentale screw (300), compression pinning (500) and tail cap (400), main nail (100) is with near-end in the marrow
With the cuspidated distal end of band, the proximal extension to the distal end, and angled setting；
The near-end have with the spiral nail (200) coordinate first through hole (101), first through hole (101) axis with
The near-end has the second through hole (102) coordinated with the os integumentale screw (300) in 50 °～65 ° settings, the distal end；
Main nail (100) upper end has screwed hole (103) in the marrow, and the screwed hole (103) is provided with from top to bottom the tail
Cap (400) and compression pinning (500), compression pinning (500) lower end compresses the spiral nail (200), the tail cap
(400) it is threadedly coupled with the screwed hole (103), and compresses compression pinning (500)；
Spiral nail (200) front end is threaded portion, is had on the spiral nail (200) and compression pinning (500) lower end
The step surface (201) of cooperation.
2. the near end of thighbone Medullary fixation device of spiral nail is based on as claimed in claim 1, it is characterised in that：The step surface
(201) in arc-shaped, compression pinning (500) lower end has at least one arc surface (501).
3. the near end of thighbone Medullary fixation device of spiral nail is based on as claimed in claim 2, it is characterised in that：It is described to compress lock
Nail (500) lower end has two arc surfaces (501), and is symmetrical arranged.
4. the near end of thighbone Medullary fixation device of spiral nail is based on as claimed in claim 1, it is characterised in that：It is described to compress lock
Nail (500) lower end is plugged on the step surface (201), and compression pinning (500) lower end is provided with one with the step
The jack (502) that face (201) coordinates.
5. the near end of thighbone Medullary fixation device of spiral nail is based on as claimed in claim 1, it is characterised in that：The threaded portion
Front end is closed, and multiple cement holes (202) are evenly arranged with the outer wall of the threaded portion.
6. the near end of thighbone Medullary fixation device of spiral nail is based on as claimed in claim 5, it is characterised in that：Also include bone water
Mud delivery pipe (600), bone cement delivery pipe (600) the front end closing, is provided with bone cement delivery pipe (600) outer wall
One orifice (601)；
Bone cement delivery pipe (600) front end can be inserted in the threaded portion from the spiral nail (200) rear end.
7. the near end of thighbone Medullary fixation device of spiral nail is based on as claimed in claim 5, it is characterised in that：Also include bone water
Mud delivery pipe (600), bone cement delivery pipe (600) the front end closing, uniformly sets on bone cement delivery pipe (600) outer wall
It is equipped with multiple orifices (601).
8. the near end of thighbone Medullary fixation device of spiral nail is based on as claimed in claim 1, it is characterised in that：Described second leads to
Hole (102) is in long pass.
9. the near end of thighbone Medullary fixation device of spiral nail is based on as claimed in claim 1, it is characterised in that：Described first leads to
The section in hole (101) is rounded, and the first through hole (101) is respectively arranged with stress relief grooves (104) in both sides of the edge up and down.
10. the near end of thighbone Medullary fixation device of spiral nail is based on as claimed in claim 9, it is characterised in that：The stress
Release groove (104) is curved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620739255.4U CN206102724U (en) | 2016-07-14 | 2016-07-14 | Thighbone near -end marrow internal fixation device based on spiral nail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620739255.4U CN206102724U (en) | 2016-07-14 | 2016-07-14 | Thighbone near -end marrow internal fixation device based on spiral nail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206102724U true CN206102724U (en) | 2017-04-19 |
Family
ID=58510239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620739255.4U Active CN206102724U (en) | 2016-07-14 | 2016-07-14 | Thighbone near -end marrow internal fixation device based on spiral nail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206102724U (en) |
-
2016
- 2016-07-14 CN CN201620739255.4U patent/CN206102724U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101601605B (en) | Intramedullary nail fixation device for fractured near end of thighbone | |
| CN106073877A (en) | A kind of near end of thighbone Medullary fixation device | |
| CN204072298U (en) | Dissection bone plate for locking on rear side of distal humerus | |
| CN104997540A (en) | Soft tissue fixator for orthopedic operation and soft tissue fixator assembly | |
| CN204260806U (en) | A kind of bone-knitting device for the treatment of fracture of femoral neck | |
| CN204379417U (en) | Universal dynamical pressing type is strengthened preventing revolving intramedullary pin | |
| CN206198028U (en) | A kind of near end of thighbone Medullary fixation device | |
| CN206102724U (en) | Thighbone near -end marrow internal fixation device based on spiral nail | |
| CN207152642U (en) | A kind of combined type cancellous bone double thread forcing screw | |
| CN207236837U (en) | Bone screw | |
| CN203280473U (en) | Minimally-invasive fracture reduction fixing support system | |
| CN201445555U (en) | Thigh bone near-end fracture intramedullary nail fixing device | |
| CN106388923A (en) | Controllable and slidable locking compression plate for femoral neck | |
| CN208926564U (en) | Femoral interlocking nail structural system | |
| CN106137360A (en) | The computer-aided design porous lightweight neck of femur hollow screw printed based on 3D | |
| CN206214172U (en) | The porous lightweight neck of femur hollow screw of CAD based on 3D printing | |
| CN201684012U (en) | Limited dynamic hip screw | |
| CN108433796A (en) | A kind of embedded bone block fixator | |
| CN211560315U (en) | Intramedullary pressurization fixing kirschner wire | |
| CN107582159A (en) | Bone cement locking bone screw for locking bone fracture plate | |
| CN107440778A (en) | One kind interlocking anti-settling PFN | |
| CN107468325A (en) | A kind of rear ankle suitable for Minimally Invasive Surgery dissects locking steel plate | |
| CN208017563U (en) | A kind of fractured near end of thighbone connector | |
| CN207912753U (en) | A kind of telescopic near end of thighbone attachment device | |
| CN211409309U (en) | Proximal intramedullary nail of femur |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |