CN108969079A - Bone anchoring device with bone nail - Google Patents
Bone anchoring device with bone nail Download PDFInfo
- Publication number
- CN108969079A CN108969079A CN201710401999.4A CN201710401999A CN108969079A CN 108969079 A CN108969079 A CN 108969079A CN 201710401999 A CN201710401999 A CN 201710401999A CN 108969079 A CN108969079 A CN 108969079A
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- China
- Prior art keywords
- bone
- cylinder base
- fixed jaw
- bone nail
- fixed
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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
- A61B17/60—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 for external osteosynthesis, e.g. distractors, contractors
- A61B17/64—Devices extending alongside the bones to be positioned
- A61B17/645—Devices extending alongside the bones to be positioned comprising a framework
-
- 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
- A61B2017/564—Methods for bone or joint treatment
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- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Biomedical Technology (AREA)
- Engineering & Computer Science (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
The present invention relates to a kind of bone anchoring devices with bone nail comprising: fixed jaw (11), using the center for being held section of bone to be fixed as origin, fixed jaw is greater than 180 ° to the angle that origin opens；Bone nail cylinder base (21), has the through-hole longitudinally extended along bone nail cylinder base for accommodating bone nail (51), and bone nail (51) penetrates at least unilateral sclerotin of bone to be fixed by through-hole；The fixed jaw connecting rod (13) connecting with fixed jaw (11), is slidably matched with bone nail cylinder base (21), so that bone nail cylinder base (21) can slide on longitudinal direction (Z)；Fastener (31) can be such that bone nail cylinder base (21) moves toward one another with the fixed jaw (31) on longitudinal direction (Z), the front end of bone nail cylinder base (21) is made to hold out against bone to be fixed.The bone anchoring device of the application, provides sufficiently reliable bone fixation effect in simple structure, and caused by wound it is smaller.
Description
Technical field
The present invention relates to a kind of bone anchoring device with bone nail, especially a kind of fixed dress for long bone fracture end
It sets.
Background technique
In medical practice, bone nail is often needed to use to the fixation of bone.Prior art CN 202515750U discloses one
Kind has the bone anchoring device of bone nail.
It is the attached drawing of CN202515750U with reference to Fig. 1.The fixator of the prior art introduction includes 2 He of distal end monodactyle
Assist hook pawl 8.As described in 0024 section of 750 ', lesser trochanter of femur first is hooked with monodactyle 2, then drive screw 7, driven
Before auxiliary jaw 8 so with 2 obvolvent of monodactyle.Although femur to be fixed is not shown in 750 ', those skilled in the art can determine to
Fixed femur is by obvolvent between monodactyle 2 and auxiliary jaw 8.
Fixator in 750 ' further includes orthogonal two arc-shaped guide rails 4 and 5, and the sleeve being mounted on guide rail 5 is sliding
Block 6, and what is connect with sleeve-sliders 6 lead drill bushing cylinder 3.As described in 0024 section of 750 ', by adjusting sliding block and guide rail 4 and 5
Relative position, the fixator in 750 ', which allows to lead drill bushing cylinder 3, obtains best bore position.It thereafter can be by leading drill bushing cylinder 3
Bone nail is set.
Above-mentioned prior art fixator, although its bore position is chosen as most preferably, having the disadvantages that on the whole
One, to make auxiliary jaw 8 and 2 obvolvent of monodactyle, auxiliary jaw 8 need to move from bottom to up, outside the bone in mobile route tissue need by
It cuts, this causes biggish wound；Two, the digit-selecting device of bone nail is relative complex, and orthogonal two arc-shaped guide rails undoubtedly increase
Add and has designed and manufactured difficulty.
Summary of the invention
The purpose of the present invention is to provide a kind of bone anchoring devices with bone nail, in simple structure, provide good
Pawl-nail fixed effect, and reduce wound.
The present invention realizes that the scheme of above-mentioned purpose is to provide a kind of bone anchoring device with bone nail, comprising: fixed jaw, with
The center for being held section of bone to be fixed is origin, and the fixed jaw is greater than 180 ° to the angle that origin opens；Bone nail cylinder base,
It has the through-hole extended along bone nail cylinder base longitudinal direction Z for accommodating bone nail, and the bone nail penetrates bone to be fixed by the through-hole
At least unilateral sclerotin；The fixed jaw connecting rod connecting with the fixed jaw is slidably matched, so that bone nail with the bone nail cylinder base
Cylinder base can slide on the longitudinal direction Z: fastener can make the bone nail cylinder base and the fixed jaw phase on longitudinal Z
To movement, the front end of the bone nail cylinder base is made to hold out against the bone to be fixed.
By abandoning using auxiliary jaw, bone anchoring device of the invention is smaller to wound caused by tissue outside bone；By making
With the cylinder base with longitudinal hole, bone anchoring device of the invention provides bone nail in simple structure and fixes.Due to consolidating for bone nail
Determine the fixed effect that effect is generally better than the auxiliary jaw 8 of the prior art and 2 obvolvent of monodactyle is formed, bone anchoring device of the invention exists
Cause wound smaller, structure is simpler simultaneously, remains to provide sufficiently reliable bone fixation effect.
Detailed description of the invention
The present invention may be better understood with reference to drawing and description.Component in attached drawing is not drawn necessarily to scale,
Purpose, which is only that, illustrates the principle of the present invention.In the accompanying drawings:
Fig. 1 is the attached drawing for the bone anchoring device that the prior art has bone nail；
Fig. 2 is according to the side view of one embodiment of the present of invention, including fixed jaw associated component, fixed cylinder base relevant group
Part, bone nail and fastener；
Fig. 3 is the rearview of embodiment illustrated in fig. 2；
Fig. 4 is the stereoscopic schematic diagram of embodiment illustrated in fig. 2, its visual appearance is shown respectively and the part that is blocked.
Specific embodiment
Following explanation is related to the bone anchoring device according to an embodiment of the invention with bone nail, such as Fig. 2-4 institute
Show comprising: fixed jaw 11, with the center (such as geometric center) for being held section of bone to be fixed for origin, the fixation
Pawl is greater than 180 ° to the angle that origin opens；Bone nail cylinder base 21 has the longitudinal Z along the bone nail cylinder base for accommodating bone nail 51
The through-hole of extension, the bone nail 51 penetrate at least unilateral sclerotin of bone to be fixed by the through-hole；Connect with the fixed jaw 11
The fixed jaw connecting rod 13 connect is slidably matched with the bone nail cylinder base 21, enables bone nail cylinder base 21 on the longitudinal direction Z
Sliding；Fastener 31 can be such that the bone nail cylinder base 21 moves toward one another on longitudinal Z with the fixed jaw 31, make the bone
The front end of nail barrel seat 21 holds out against the bone to be fixed.
Caused by above-described embodiment provides a kind of bone anchoring device of simple pawl+nail of structure, and it outside bone to organizing
Wound is smaller.Specifically, the bone anchoring device in above-described embodiment accommodates bone nail using cylinder base, abandon complicated
Two arc-shaped guide rails；In addition, intentionally abandoning two auxiliary jaws of the prior art, the cutting to organizing outside bone can be substantially reduced
Range.
As an example, fixed jaw connecting rod 13 and the bone nail cylinder base 21 be slidably matched can be dovetail groove type can not
It is rotatably assorted, is also possible to the partial arc section for allowing to rotate to a certain degree cooperation, or the cylinder/cylinder for allowing arbitrarily to rotate
Cooperation.
Since the Gu Shang tissue thickness of different patients is different, the length of fixed jaw connecting rod 13 is 8-20cm.Length can be used
Adjustable sleeve is spent to make fixed jaw connecting rod 13 to adapt to different length；A set of component can also be made comprising length
Different multiple components are to be suitable for different patients.In addition, when the fixation for femur, the present inventors have noted that adult
5cm femoral shaft anteroposterior diameter is the anteroposterior diameter range of femoral shaft upper middle lower part between 22-35mm, while under Chinese's lesser trochanter
25.59±2.75mm.It will appear elastic deformation under stress in view of metal parts, present inventor fills bone fixation
The diameter for the substantial circular that the clamping bore set, i.e. fixed jaw and movable claw are formed, is selected as 20-40mm, average value 26mm.Separately
Outside, in order to be suitable for plugging into other equipment, the peripheral shape of fixed jaw connecting rod 13 is formed as rectangle.
It preferably, is the fixing effect for reinforcing bone nail cylinder base 21, the front end of the bone nail cylinder base 21 has spike-tooth 211, when
The fastener 31 holds out against the front end of the bone nail cylinder base 21 when on the bone to be fixed, and the spike-tooth 211 is inserted into described
Bone to be fixed.At this point, the bone fixation dress to avoid the rotation around longitudinal Z of spike-tooth 211 from damaging bone to be fixed, in preferred embodiment
Setting further includes anti-rotation structure, and when the spike-tooth 211 is inserted into the bone to be fixed, the anti-rotation structure prevents the bone nail cylinder base
21 rotate relative to fixed jaw connecting rod 13.
Preferably, the anti-rotation structure is that fin/the anti-of groove composition that Z extends along longitudinal direction screws conjunction, fin (groove)
It may be provided at bone nail cylinder base 21 or the other component connecting with bone nail cylinder base 21 (such as the bone nail cylinder base handle being subsequently noted
25) on, and groove (fin) may be provided in fixed jaw connecting rod 13 or rigidly connected with the fixed jaw connecting rod 13
On other component (such as the fixed jaw handle 15 being subsequently noted).When spike-tooth 211 will contact bone to be fixed, between above-mentioned component
It forms fin/groove to prevent screwing conjunction, only allowing spike-tooth 211, Z Forward is pushed into bone to be fixed along longitudinal direction, without allowing spike-tooth
211 tangentially move along bone surface and wear bone to be fixed.Preferably, for the simplicity of processing, the cross section of fin and groove is
Rectangle.In addition, the length of fin is 10-30mm as available size, the length of groove is 40-100mm.
Preferably, as shown in Fig. 2, the fixed jaw 11 has a pit 115, the bone nail 51 penetrate the bone to be fixed and
It enters in the pit 115.At this point, pawl-pin structure of preferred embodiment forms an of roughly semicircular frame, the frame
The diameter portion of frame passes through the two sides of bone to be fixed Z along longitudinal direction, and bone to be fixed described in the semi arch part obvolvent of frame, therefore
Form fabulous bone fixation effect.
Preferably, the pit 115 and the bone nail 51 have the screw thread matched.In this way, it is solid to can further improve bone
Fixed intensity and reliability.
Preferably, the bone anchoring device in embodiment may include the bone nail cylinder base handle connecting with the bone nail cylinder base 21
25 and the fixed jaw handle 15 that is connect with the fixed jaw connecting rod 13；The bone nail cylinder base handle 25, which has, to be transversely to the machine direction
The lateral part (such as the bone nail cylinder base handle 25 is L shape or T shape etc.) of Z；The fixed jaw handle 15 is U-shaped, is had remote
Vertical section 158 from the fixed jaw connecting rod 13 and another vertical section close to the fixed jaw connecting rod 13, and connection
The bottom section of two vertical sections, the bottom section have recess 151, and the recess 151 can accommodate the cross of the bone nail cylinder base handle
To at least part of part.The lateral part for accommodating bone nail cylinder base handles 25 by providing recess 151, bone nail cylinder base 21 can be with
The initial position stable in one, will not because of unintentionally touch and along longitudinal direction Z move forward.
Preferably, in bone anchoring device in embodiment, the separate fixed jaw of the fixed jaw handle 15 of the U-shaped
The vertical section 158 of connecting rod 13 is the tubular of Z extension along longitudinal direction；The fastener 31 forms screw thread with the tubular vertical section
Connection.When fixed jaw 11, fixed jaw connecting rod 13 and fixed jaw handle 15 are rigidly connected, fastener 31 by with it is solid
Determine the threaded connection of pawl handle 15.By rotating the pentagon knob of fastener 31 shown in Fig. 3, bone nail cylinder base 21 can be realized
With fixed jaw 11 move toward one another and in place after fastening.
Preferably, in bone anchoring device in embodiment, the fixed jaw 11 includes nosed 111, the wedge shape
The peripheral side of front end 111 has band portion 113.When near the fixed jaw 11 incision patient's bone to be fixed, wedge-type shape has
Conducive to the resistance for reducing incision, and band portion 113 then facilitates to separate periosteum and muscle stop.Preferably, fixation of the invention
Pawl 11 is formed as one.
Preferably, in bone anchoring device in embodiment, the fixed jaw connecting rod 13 is spaced apart with Z along longitudinal direction
Hole.The interval can be 0.8-1.2cm, for helping drainage fluid.
Preferably, in bone anchoring device in embodiment, the fixed jaw connecting rod 13 is the tubular of square-outside and round-inside, institute
Stating bone nail cylinder base 21 is cylinder.Bone nail cylinder base 21 can not only slide in fixed jaw connecting rod 13 as a result, but also can be at it
Interior rotation.When operating the bone anchoring device of this embodiment, bone nail cylinder base handle 25 can be rotated first, keep its lateral part de-
Recess 151 from fixed jaw handle 15；Then Z moves forward the bone nail cylinder base handle 25 along longitudinal direction, is finally inserted into spike-tooth 211
In bone to be fixed.
Preferably, considering for structural strength, the bone nail cylinder base 21 and the bone nail cylinder base handle in embodiment
25 is integrally formed.
Preferably, considering for structural strength, the fixed jaw 11 and the fixed jaw connecting rod 13 and described solid
It is integrally formed to determine pawl handle 15.
Although having disclosed various exemplary embodiments of the invention, one of ordinary skill in the art will be understood that
In the case of without departing from the spirit and scope of protection of the present invention, can make will realize that the various of certain advantages of the invention change
Become and improves.Those skilled in the art obviously understand, can suitably substitute the other component for executing identical function.It answers
When note that the feature with reference to specific Detailed description of the invention can combine with the feature of other accompanying drawings, even if being not expressly mentioned
In the case of.
Claims (12)
1. a kind of bone anchoring device with bone nail, comprising:
Fixed jaw (11), using the center for being held section of bone to be fixed as origin, angle that the fixed jaw opens origin
Greater than 180 °；
Bone nail cylinder base (21), the through-hole that there is the longitudinal direction (Z) along the bone nail cylinder base for accommodating bone nail (51) to extend, the bone
Nail (51) penetrates at least unilateral sclerotin of bone to be fixed by the through-hole；
The fixed jaw connecting rod (13) connecting with the fixed jaw (11) is slidably matched with the bone nail cylinder base (21), so that
Bone nail cylinder base (21) can slide on the longitudinal direction (Z)；
Fastener (31) can be such that the bone nail cylinder base (21) moves toward one another on longitudinal direction (Z) with the fixed jaw (31), make
The front end of the bone nail cylinder base (21) holds out against the bone to be fixed.
2. bone anchoring device according to claim 1, wherein
The front end of the bone nail cylinder base (21) has spike-tooth (211), when the fastener (31) is by the bone nail cylinder base (21)
Front end is held out against when on the bone to be fixed, and the spike-tooth (211) is inserted into the bone to be fixed；
The bone anchoring device further includes anti-rotation structure, and when the spike-tooth is inserted into the bone to be fixed, the anti-rotation structure is prevented
The bone nail cylinder base (21) rotates relative to fixed jaw connecting rod (13).
3. bone anchoring device according to claim 2, wherein
The anti-rotation structure is that fin/groove that (Z) extends along longitudinal direction is prevented screwing conjunction.
4. bone anchoring device according to claim 1, wherein
The fixed jaw (11) has pit (115), and the bone nail (51) penetrates the bone to be fixed and enters the pit
(115) in.
5. bone anchoring device according to claim 4, wherein
The pit (115) and the bone nail (51) have the screw thread matched.
6. bone anchoring device according to claim 1, further includes
The bone nail cylinder base handle (25) that is connect with the bone nail cylinder base (21) and
The fixed jaw handle (15) being connect with the fixed jaw connecting rod (13)；
The bone nail cylinder base handle (25) has the lateral part for being transversely to the machine direction (Z)；
The fixed jaw handle (15) is U-shaped, and bottom section has recess (151), and the recess (151) can accommodate the bone nail
At least part of the lateral part of cylinder base handle.
7. bone anchoring device according to claim 6, wherein
The fixed jaw handle (15) of the U-shaped has the vertical section (158) far from the fixed jaw connecting rod (13), described vertical
Section (158) is the tubular of (Z) extension along longitudinal direction；
The fastener (31) is threadedly coupled with the tubular vertical section formation.
8. bone anchoring device according to claim 1, wherein the fixed jaw (11) includes nosed (111), it is described
The peripheral side of nosed (111) has band portion (113).
9. bone anchoring device according to claim 1, wherein the fixed jaw connecting rod (13) is spaced with (Z) along longitudinal direction
The hole opened.
10. bone anchoring device according to claim 1, wherein the fixed jaw connecting rod (13) is the cylinder of square-outside and round-inside
Shape, the bone nail cylinder base (21) are cylinder.
11. bone anchoring device according to claim 1, wherein the bone nail cylinder base (21) and the bone nail cylinder base handle
(25) it is integrally formed.
12. bone anchoring device according to claim 1, wherein the fixed jaw (11) and the fixed jaw connecting rod (13)
And the fixed jaw handle (15) is integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710401999.4A CN108969079B (en) | 2017-05-31 | 2017-05-31 | Bone fixation device with bone nails |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710401999.4A CN108969079B (en) | 2017-05-31 | 2017-05-31 | Bone fixation device with bone nails |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108969079A true CN108969079A (en) | 2018-12-11 |
| CN108969079B CN108969079B (en) | 2023-07-14 |
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ID=64501029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710401999.4A Active CN108969079B (en) | 2017-05-31 | 2017-05-31 | Bone fixation device with bone nails |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108969079B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6210415B1 (en) * | 2000-02-18 | 2001-04-03 | Lab Engineering & Manufacturing, Inc. | Surgical drill guide |
| CN105310755A (en) * | 2015-05-26 | 2016-02-10 | 闻泰医疗科技（上海）有限公司 | Shoulder joint scapula glenoid bone positioning device |
-
2017
- 2017-05-31 CN CN201710401999.4A patent/CN108969079B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6210415B1 (en) * | 2000-02-18 | 2001-04-03 | Lab Engineering & Manufacturing, Inc. | Surgical drill guide |
| CN105310755A (en) * | 2015-05-26 | 2016-02-10 | 闻泰医疗科技（上海）有限公司 | Shoulder joint scapula glenoid bone positioning device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108969079B (en) | 2023-07-14 |
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