CN202458648U - Spiral blade type inner bone marrow locking nail - Google Patents
Spiral blade type inner bone marrow locking nail Download PDFInfo
- Publication number
- CN202458648U CN202458648U CN2012200555069U CN201220055506U CN202458648U CN 202458648 U CN202458648 U CN 202458648U CN 2012200555069 U CN2012200555069 U CN 2012200555069U CN 201220055506 U CN201220055506 U CN 201220055506U CN 202458648 U CN202458648 U CN 202458648U
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- nut
- circular knife
- nail
- intramedullary pin
- arc surface
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- 210000001185 bone marrow Anatomy 0.000 title abstract 2
- 210000003109 clavicle Anatomy 0.000 claims abstract description 20
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 241000565675 Oncomelania Species 0.000 claims description 2
- 208000031481 Pathologic Constriction Diseases 0.000 claims description 2
- 210000001215 vagina Anatomy 0.000 claims description 2
- 210000000988 bone and bone Anatomy 0.000 abstract description 7
- 208000027418 Wounds and injury Diseases 0.000 abstract description 6
- 230000006378 damage Effects 0.000 abstract description 4
- 210000004872 soft tissue Anatomy 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 abstract description 2
- 230000035876 healing Effects 0.000 abstract description 2
- 208000014674 injury Diseases 0.000 abstract 2
- 208000010392 Bone Fractures Diseases 0.000 description 15
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000002980 postoperative effect Effects 0.000 description 3
- 208000006735 Periostitis Diseases 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000002224 dissection Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 210000003460 periosteum Anatomy 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- 210000001364 upper extremity Anatomy 0.000 description 2
- 206010017076 Fracture Diseases 0.000 description 1
- 206010040943 Skin Ulcer Diseases 0.000 description 1
- 208000026137 Soft tissue injury Diseases 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 210000002659 acromion Anatomy 0.000 description 1
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 description 1
- 210000003484 anatomy Anatomy 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 210000003414 extremity Anatomy 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000000399 orthopedic effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 108010048734 sclerotin Proteins 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
- 238000007920 subcutaneous administration Methods 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
Images
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- Surgical Instruments (AREA)
Abstract
The utility model relates to a spiral blade type inner marrow locking nail. The spiral blade type inner marrow locking pin consists of a spiral blade body, universal connection blocks, pins, a main nail, a nut I, a limiting block and a nut II, wherein the spiral blade body is connected with the universal connection blocks by the pins, the universal connection blocks are connected by the pins and the universal connection blocks and the main nail are connected by the pins so as to form an intramedullary nail main body, the intramedullary nail main body is punched into a bone of a patient, the nut II is screwed down on intramedullary nail main body, and the outer side clavicle is clamped by a limiting block and finally is locked by the nut I. The spiral blade type inner bone marrow locking nail disclosed by the utility model has the advantages that the characteristics of a universal shaft structure and a spiral blade are combined so that not only can a bent bone anatomic form of the clavicle fit, but also an anti-rotation function is exerted; pressurizing, return-resisting and rotation-resisting functions are realized through the tail end nut I and the limiting block; during an operation on the patient, the injury on the patient, the peeling breakage on soft tissues and the injury on the bone body are small, and the healing on a fracture part after the operation is easy; the operation is simple, and the intramedullary nail is conveniently punched in and taken out.
Description
Technical field
This utility model relates to the orthopedic medical device technical field, specifically, is a kind of circular knife chip clavicular intramedullary pin.
Background technology
Lock skeleton is the unique bony framework that connects between upper limb and the trunk between presternum and acromion, and it is positioned at subcutaneous, show shallowly, receives external force to do the time spent and is prone to fracture, and incidence rate accounts for the 5%-10% that whole body is fractured, and is one of common fracture of upper limb.Clavicle is serpentine, is an irregular long bone, and the outside half is spill to rear curved, and the inboard is semi-convex to be arciform forward.Inboard 1/3 is prism-shaped; The outside 1/3 is flat; In 1/3 be the divide a word with a hyphen at the end of a line positions of handing-over, inside and outside two ends, this section diameter is the thinnest, the easiest fracture accounts for the 75%-80% of clavicular fracture sum.
The main operation method of clavicle stage casing fracture comprises outer steel plate internal fixation of marrow and marrow internal fixation at present.
The outer steel plate screw internal fixation of marrow, its fixation, the postoperative function exercise time is early; But its operative incision is big, wound is big, and it is attractive in appearance to influence human body, and local fracture end exposure range is big; Periosteum stripping is extensive; And need operation once more to take out implant after the union of fracture, patient receives wound once more, and medical expense is higher.
The marrow internal fixation is a kind of ideal fixing means that meets Wicresoft's principle; Need not peel off periosteum during operation; Do not destroy the fracture site blood circulation; Less to flesh and blood liquid supply influence, soft tissue injury is also little, has therefore that operation technique is simple, wound is little, operation safety is big, internal fixation gets to remove and advantage such as make things convenient for.Yet the Kirschner wire for the most commonly used in the present marrow internal fixation is fixed, it is prone to take place after surgery, and internal fixation is loosening, the withdraw of the needle, backshank stimulate levy, complication such as skin ulceration, fracture end rotation and angulation deformity.In addition, clavicular intramedullary pin also is used as a research direction and is paid close attention to gradually by scholars at home, and relative patent is also emerged in large numbers gradually.
One Chinese patent application numbers 200720099518.0 relates to little tubular bone fractures and uses flexible intramedullary nail, and this flexible intramedullary nail comprises the nail body; The nail body is a cylinder, the triangle sword body of the one-body molded flat of one of which end, and the one-body molded normal cone body of the other end, the diameter of this normal cone body is greater than the nail body, and the rear end is provided with thread segment, and this thread segment is provided with tapping screw thread; Can be used for little tubular bone fractures, be particularly suitable for the fractures of clavicle, rib.
One Chinese patent application numbers 200820056999.1 relates to clavicle elastic nail with lock, and this clavicle elastic nail with lock comprises a titanium system master nail, and its near-end has U type groove and female thread, can with silently or the aiming erecting device be connected; There is a screw at 10MM place apart from main nail near-end, can pass pinning with clavicle is fixed, and near-end connects through changeover portion and nail bulk phase, and the nail body is cylindric metallic object, and far-end is flat triangular prism, and bending also comes to a point gradually slightly; Its beneficial effect is: according to clavicle S shape construction features; Expand marrow by its medial extremity opening and insert main nail, near-end is installed pinning and is prevented rotation and move back nail, and far-end inserts the tabular bone of clavicle lateral segment by flat triangular prism and prevents rotation; Main nail places the stimulation of having avoided in the clavicle surrounding soft tissue fully; Main langrage property modulus is good, and the original linear condition of instant change produces flexible fastening behind the entering pulp cavity.
One Chinese patent application numbers 200820113537.9 relates to the movable lock of clavicle tail screw thread intramedullary pin device.This utility model is the movable tail screw thread intramedullary pin device of locking of a kind of clavicle simple in structure, convenient and practical, that need not expand marrow, and is not only durable in use, safe and reliable, and installs easily, and the scope of application is wide.Operative incision is less during application, and incision length only requires and enough fracture end is resetted just passablely that operation process is simple, and is convenient when taking out inside-fixture.
One Chinese patent application numbers 201020168455.1 relates to a kind of combined type clavicular intramedullary pin that is used for bone surgery; This combined type clavicular intramedullary pin comprises overcoat nail and the interior nail with endoporus; Overcoat is followed closely an end and is had and be with externally threaded first abutting end; Interior nail one end has is with externally threaded second abutting end; And the external screw thread pitch of first abutting end is greater than the external screw thread pitch of second abutting end, and interior nail passes the endoporus of overcoat nail and is connected with the inner thread of overcoat nail at the first abutting end place, and second abutting end of interior nail stretches out the overcoat nail.This utility model has solved the problem that technique for fixing that the operation of present clavicular fracture adopted can not produce compressive stress, has reached strong fixing to knochenbruch, and simple to operate, safe and efficient, it is also comparatively convenient to take out.
One Chinese patent application numbers 201020291694.6 relates to a kind of clavicular intramedullary pin.This utility model has double thread, screw in make after the medullary cavity the tight embedding of fracture site press, stable, drawback such as the body rotation can not occur following closely or deviate from; Follow closely intravital guide pin passage and make when it is screwed in the bone passage, more can accurately locate the path that nail screws in, increased the processing safety of operation.
In sum; The topmost design concept of present domestic clavicular intramedullary pin is to realize pressurization and anti-revolving; Generally be column; Therefore can't change according to the actual anatomic form of clavicle, design a kind of crooked anatomical structure of fitted clavicle, can realize again simultaneously pressurizeing, the anti-clavicular intramedullary pin that revolves of anti-back has very important meaning with independent intellectual property right.
The utility model content
The purpose of this utility model is to provide a kind of circular knife chip clavicular intramedullary pin of independent intellectual property right, and this intramedullary pin front end is provided with screw blade, can tamp sclerotin; Which is provided with the universal drive shaft structure, can make the intramedullary pin crooked skeleton dissection form of clavicle of more fitting; Tail end nut and limited block are realized the pressurization anti-back and are resisted the effect of revolving.
The purpose of this utility model realizes through following technical scheme:
A kind of circular knife chip clavicular intramedullary pin comprises circular knife lamellar body, universal contiguous block, pin, main nail, nut I, limited block and nut II.
Described main nail is column, and an end is provided with external screw thread; The other end is that universal drive shaft connects design, which is provided with a through hole, and end face is an arc surface, and the end face both sides are provided with symmetric groove, and groove face is an arc surface.
Described pin is column, and both ends of the surface are arc surface.
Described universal contiguous block is column, and both ends of the surface are arc surface, and two ends are provided with the orthogonal two side direction through holes of axis, is provided with a groove in the middle of the end, and the groove end face is an arc surface, and other end both sides are provided with symmetric groove, and the groove end face is an arc surface.
Described universal contiguous block is provided with two.
Described circular knife lamellar body, an end is provided with screw blade, and the end face circle is blunt; The other end is provided with a side direction through hole, and end face is an arc surface, and the centre is provided with a groove, in order to be connected with universal contiguous block.
Described nut I is column, is made up of the cylinder of two sections diameter, is convenient to get nail; Which is provided with female thread, with main nail external screw thread coupling; The bigger end of diameter is provided with cross recess, is used for cooperating with operation tool.
Described nut II is column, is provided with female thread, and with main nail external screw thread coupling, an end is provided with cross recess, and the other end is a sphere.
Described limited block, centre are circular, and through-hole diameter and main nail external screw thread place diameter coupling just in time can be through main nails, and both sides are provided with both wings.
Between a kind of circular knife chip of this utility model clavicular intramedullary pin, described circular knife lamellar body and universal contiguous block, between the universal contiguous block, all be connected through pin between universal contiguous block and the main nail, formation intramedullary pin main body has had the universal drive shaft structure.Squeeze into intramedullary pin in the operation, nut II is screwed into again, outside clavicle is blocked with limited block in the back, locks at last with nut I at last.
Compared with prior art, the good effect of this utility model is:
1, wound is little in the art, and is few to the soft tissue stripping damage, and the damage of skeleton itself is little, is easy to the healing of the fracture portions of postoperative;
2, the characteristics with universal drive shaft structure and screw blade combine, the crooked skeleton dissection form of clavicle of not only fitting, and played the anti-effect of revolving;
3, the design of tail end nut I and limited block has played that the postoperative anti-back is anti-revolves effect;
4, operation is simple to operate, squeezes into and take out the easy to operate of intramedullary pin.
Description of drawings
The structural representation of Fig. 1 this utility model; The three-dimensional assembling of 1A this utility model sketch map; The three-dimensional explosive view of 1B this utility model.
Fig. 2 this utility model assembly---the structural representation of main nail; 2A master follows closely front view; 2B master follows closely left view; 2C master follows closely schematic three dimensional views.
Fig. 3 this utility model assembly---the structural representation of pin; 3A sells front view; 3B sells left view; 3C sells vertical view; 3D sells schematic three dimensional views.
Fig. 4 this utility model assembly---the structural representation of universal contiguous block; The universal contiguous block front view of 4A; The universal contiguous block left view of 4B; The universal contiguous block vertical view of 4C; The universal contiguous block schematic three dimensional views of 4D.
Fig. 5 this utility model assembly---the structural representation of circular knife lamellar body; 5A circular knife lamellar body upward view; 5B circular knife lamellar body front view; 5C circular knife lamellar body left view; 5D circular knife lamellar body vertical view; 5E circular knife lamellar body schematic three dimensional views.
Fig. 6 this utility model assembly---the structural representation of nut I; 6A nut I schematic three dimensional views 1; 6B nut I schematic three dimensional views 2.
Fig. 7 this utility model assembly---the structural representation of limited block; 7A limited block schematic three dimensional views 1; 7B limited block schematic three dimensional views 2.
Fig. 8 this utility model assembly---the structural representation of nut II; 8A nut II schematic three dimensional views 1; 8B nut II schematic three dimensional views 2.
Label in the accompanying drawing is: 1, main nail, 2, pin, 3, universal contiguous block, 4, the circular knife lamellar body, 5, nut I, 6, limited block, 7, nut II, 11, external screw thread; 12, arc surface, 13, arc surface, 14, through hole, 21, arc surface, 22, column, 31 columns, 32, arc surface; 33, arc surface, 35, through hole, 36, through hole, 37, groove, 34, groove, 38, arc surface; 39, arc surface, 41, column, 42, the end face circle is blunt, 43, screw blade, 44, the end arc surface, 45, the side direction through hole; 46, groove, 51, cylinder, 52, cylinder, 53, female thread, 54, cross recess, 61, circular; 62, through hole, 63, both wings, 71, column, 72, sphere, 73, female thread, 74, cross recess.
The specific embodiment
The specific embodiment of a kind of clavicular intramedullary pin of this utility model below is provided.
Embodiment 1
Accompanying drawing 1 is the structural representation of Fig. 1 this utility model.Fig. 2-Fig. 8 is respectively the structural representation of this utility model assembly master nail, pin, universal contiguous block, circular knife lamellar body, nut I, limited block and nut II.
As shown in Figure 1, a kind of circular knife chip of this utility model clavicular intramedullary pin is made up of master's nail 1, pin 2, universal contiguous block 3, circular knife lamellar body 4, nut I5, limited block 6 and nut II7.
As shown in Figure 2, described main nail 1 is column, and an end is provided with external screw thread 11; The other end is that universal drive shaft connects design, which is provided with a through hole 14, and end face is an arc surface 12, and the end face both sides are provided with symmetric groove, and groove face is an arc surface 13.
As shown in Figure 3, described pin 2 is column 22, and both ends of the surface are arc surface 21.
As shown in Figure 4, described universal contiguous block 3 is column 31; Both ends of the surface are arc surface 32 and 33, and two ends are provided with a groove 37 in the middle of being provided with orthogonal two side direction through holes 35 of axis and 36, one ends; The groove end face is an arc surface 38, and other end both sides are provided with symmetric groove 34, and the groove end face is an arc surface 39.
As shown in Figure 5, described circular knife lamellar body 4 is column 41, one ends and is provided with screw blade 43, end face circle blunt 42; The other end is provided with a side direction through hole 45, and end face is an arc surface 44, and the centre is provided with a groove 46.
As shown in Figure 6, described nut I5 is column, is made up of the cylinder 51 and 52 of two sections diameter; It is provided with female thread 53, with main nail external screw thread 11 couplings; The bigger end of diameter is provided with cross recess 54, is used for cooperating with operation tool.
As shown in Figure 7, described limited block 6, the centre is circular 61, and through hole 62 diameters and main oncomelania stricture of vagina place 11 couplings just in time can be through main nails, and both sides are provided with both wings 63.
As shown in Figure 8, described nut II7 is column 71, is provided with female thread 73, one ends and is provided with cross recess 74, and the other end is a sphere 72.
Between a kind of circular knife chip of this utility model clavicular intramedullary pin, circular knife lamellar body 4 and universal contiguous block 3, between the universal contiguous block 3, all be connected between universal contiguous block 3 and the main nail 1 through pin 2, so far, formation intramedullary pin main body.Squeeze into intramedullary pin in the operation, nut II7 is screwed into again, outside clavicle is blocked with limited block 6 in the back, locks at last with nut I5 at last.
The above only is the preferred implementation of this utility model; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from this utility model design; Can also make some improvement and retouching, these improvement and retouching also should be regarded as in the protection domain of this utility model.
Claims (8)
1. a circular knife chip clavicular intramedullary pin is characterized in that, is made up of circular knife lamellar body, universal contiguous block, pin, main nail, nut I, limited block and nut II; Between circular knife lamellar body and the universal contiguous block, between the universal contiguous block, all be connected between universal contiguous block and the main nail through pin, so far, formation intramedullary pin main body; Squeeze into intramedullary pin in the operation, nut II is screwed into again, outside clavicle is blocked with limited block in the back, locks at last with nut I at last.
2. a kind of circular knife chip clavicular intramedullary pin as claimed in claim 1 is characterized in that, described main nail is column, and an end is provided with external screw thread; The other end is that universal drive shaft connects design, which is provided with a through hole, and end face is an arc surface, and the end face both sides are provided with symmetric groove, and groove face is an arc surface.
3. a kind of circular knife chip clavicular intramedullary pin as claimed in claim 1 is characterized in that described pin is column, and both ends of the surface are arc surface.
4. a kind of circular knife chip clavicular intramedullary pin as claimed in claim 1 is characterized in that described universal contiguous block; Be column, both ends of the surface are arc surface, and two ends are provided with the orthogonal two side direction through holes of axis; Be provided with a groove in the middle of one end; The groove end face is an arc surface, and other end both sides are provided with symmetric groove, and the groove end face is an arc surface.
5. a kind of circular knife chip clavicular intramedullary pin as claimed in claim 1 is characterized in that, described circular knife lamellar body, and an end is provided with screw blade, and the end face circle is blunt; The other end is provided with a side direction through hole, and end face is an arc surface, and the centre is provided with a groove, in order to be connected with universal contiguous block.
6. a kind of circular knife chip clavicular intramedullary pin as claimed in claim 1 is characterized in that described nut I is column, is made up of the cylinder of two sections diameter; It is provided with female thread, with main oncomelania stricture of vagina coupling; The bigger end of diameter is provided with cross recess, is used for cooperating with operation tool.
7. a kind of circular knife chip clavicular intramedullary pin as claimed in claim 1 is characterized in that described nut II is column, is provided with female thread, and an end is provided with cross recess, and the other end is a sphere.
8. a kind of circular knife chip clavicular intramedullary pin as claimed in claim 1 is characterized in that, described limited block, and the centre is provided with a through hole, and both sides are provided with both wings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200555069U CN202458648U (en) | 2012-02-21 | 2012-02-21 | Spiral blade type inner bone marrow locking nail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200555069U CN202458648U (en) | 2012-02-21 | 2012-02-21 | Spiral blade type inner bone marrow locking nail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202458648U true CN202458648U (en) | 2012-10-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200555069U Expired - Fee Related CN202458648U (en) | 2012-02-21 | 2012-02-21 | Spiral blade type inner bone marrow locking nail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202458648U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103815959A (en) * | 2012-11-16 | 2014-05-28 | 上海底特精密紧固件股份有限公司 | Bone screw |
| CN103876817A (en) * | 2012-12-21 | 2014-06-25 | 江苏安格尔医疗器械有限公司 | Multi-start thread U-shaped nail |
| CN105326558A (en) * | 2014-08-11 | 2016-02-17 | 天津市康尔医疗器械有限公司 | Bone joining plate locking screw |
| CN105997213A (en) * | 2016-06-22 | 2016-10-12 | 苏州吉美瑞医疗器械有限公司 | Auto-locking intramedullary nail for thighbone |
| CN113456200A (en) * | 2021-08-05 | 2021-10-01 | 固安博健生物技术有限公司 | Anti-rotation type orthopedics location nail |
| CN113662647A (en) * | 2020-05-15 | 2021-11-19 | 北京中安泰华科技有限公司 | Clavicle automatic pressurizing intramedullary nail with lock |
-
2012
- 2012-02-21 CN CN2012200555069U patent/CN202458648U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103815959A (en) * | 2012-11-16 | 2014-05-28 | 上海底特精密紧固件股份有限公司 | Bone screw |
| CN103876817A (en) * | 2012-12-21 | 2014-06-25 | 江苏安格尔医疗器械有限公司 | Multi-start thread U-shaped nail |
| CN105326558A (en) * | 2014-08-11 | 2016-02-17 | 天津市康尔医疗器械有限公司 | Bone joining plate locking screw |
| CN105997213A (en) * | 2016-06-22 | 2016-10-12 | 苏州吉美瑞医疗器械有限公司 | Auto-locking intramedullary nail for thighbone |
| CN113662647A (en) * | 2020-05-15 | 2021-11-19 | 北京中安泰华科技有限公司 | Clavicle automatic pressurizing intramedullary nail with lock |
| CN113456200A (en) * | 2021-08-05 | 2021-10-01 | 固安博健生物技术有限公司 | Anti-rotation type orthopedics location nail |
| CN113456200B (en) * | 2021-08-05 | 2023-12-26 | 固安博健生物技术有限公司 | Anti-rotation orthopedics locating nail |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121003 Termination date: 20140221 |