CN105943128A - Puncture outfit cannula and puncture outfit with the same - Google Patents
Puncture outfit cannula and puncture outfit with the same Download PDFInfo
- Publication number
- CN105943128A CN105943128A CN201610237858.9A CN201610237858A CN105943128A CN 105943128 A CN105943128 A CN 105943128A CN 201610237858 A CN201610237858 A CN 201610237858A CN 105943128 A CN105943128 A CN 105943128A
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- China
- Prior art keywords
- puncture outfit
- casing tube
- sleeve pipe
- outfit casing
- length
- 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.)
- Pending
Links
- 210000003462 vein Anatomy 0.000 claims description 12
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 8
- 238000013461 design Methods 0.000 abstract description 7
- 238000001356 surgical procedure Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 6
- 210000002784 stomach Anatomy 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 235000013372 meat Nutrition 0.000 description 2
- 238000002324 minimally invasive surgery Methods 0.000 description 2
- 238000011017 operating method Methods 0.000 description 2
- 238000007634 remodeling Methods 0.000 description 2
- 208000005646 Pneumoperitoneum Diseases 0.000 description 1
- 210000000683 abdominal cavity Anatomy 0.000 description 1
- 230000003187 abdominal effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000007912 intraperitoneal administration Methods 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 230000005226 mechanical processes and functions Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000000115 thoracic cavity Anatomy 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/34—Trocars; Puncturing needles
- A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
- A61B17/3421—Cannulas
- A61B17/3431—Cannulas being collapsible, e.g. made of thin flexible material
Landscapes
- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Engineering & Computer Science (AREA)
- Pathology (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)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention discloses a puncture outfit cannula and a puncture outfit with the same. The puncture outfit cannula includes: a connecting part; and a cannula body, the rear end of which is connected to the connecting part. Specifically, the cannula body comprises a fixed segment, the surface of which is provided with a wavy antiskid part. According to the puncture outfit cannula and the puncture outfit with the same provided by the invention, the wavy antiskid part is disposed at the fixed segment to increase friction during surgery, thus reaching a fixation effect. The design structure is simple and has no need for an external fixation device, and additional operation steps are unnecessary when doctors operate, the puncture outfit cannula and the puncture outfit with the cannula are simple to use, and greatly improve the operation completion schedule.
Description
Technical field
The present invention relates to area of medical devices, specifically, particularly to a kind of puncture outfit casing tube and the perforator with it.
Background technology
Surgical operation has stepped into Wicresoft's epoch.Minimally Invasive Surgery refers to it is to complete thoracic cavity or Intraabdominal complicated operation under miniature incision, and perforator is necessary medical apparatus and instruments in Minimally Invasive Surgery.In abdominal cavity inspection, abdominal operation and other Wicresofts or surgical operation, perforator is requisite operating theater instruments.Perforator can set up entrance passage in the stomach wall of human body, to enter intraperitoneal for peritoneoscope or other operating theater instruments (such as endoscope, shears, anastomat, seal wire, conduit, filter, support etc.), and the passage that gas passes in and out is provided, to control the pneumoperitoneum needed for operation, in order to carry out checking or operation technique.When operation, usually puncture outfit casing tube comes in contact with miniature incision, and in operation process, the position of puncture outfit casing tube should be the most fixing, to reach the requirement of operation.
In prior art, realize above-mentioned purpose generally by the anti-slip veins that the surface configuration at puncture outfit casing tube is common, but in actual mechanical process, fixed effect is the most inconspicuous；Or outside puncture outfit casing tube, in addition assistive device is to reach fixing purpose, but this method adds somewhat to the difficulty of operation technique.
Summary of the invention
For the deficiencies in the prior art, it is desirable to provide a kind of reasonable in design, structure are reliable, easy to the puncture outfit casing tube of fixing operation and have its perforator, the present invention is achieved by the following technical solutions:
A kind of puncture outfit casing tube, including connecting portion；Sleeve body, the rear end of described sleeve body is connected on described connecting portion；Described sleeve body includes that canned paragraph, the surface configuration of described canned paragraph have wavy anti-slip part.
Described puncture outfit casing tube is hollow circular-tube, and described puncture outfit casing tube farther includes the preposition portion of sleeve pipe, and the rear end in the preposition portion of described sleeve pipe is smooth with sleeve pipe fixed part front end to be connected, and the front end face in the preposition portion of described sleeve pipe is oblique section.
The internal diameter of described connecting portion, the internal diameter of described sleeve pipe fixed part, rear end, described sleeve pipe preposition portion internal diameter the most identical, the internal diameter of front end, described sleeve pipe preposition portion is less than or equal to the internal diameter of rear end, described sleeve pipe preposition portion.
Described anti-slip part includes crest section and trough section, and described crest section contains maximum outside diameter d1, described trough section contains minimum outer diameter d2, described maximum outside diameter d1It it is described minimum outer diameter d21 ~ 1.5 times.
Described anti-slip part includes maximum outside diameter d1And minimum outer diameter d2, described maximum outside diameter d1It it is described minimum outer diameter d21 ~ 1.2 times.
Distance at the maximum outside diameter of two the most adjacent described crest sections or the distance at the minimum outer diameter of the most adjacent two described trough sections are 10mm ~ 20mm.
Distance at the maximum outside diameter of two the most adjacent described crest sections or the distance at the minimum outer diameter of the most adjacent two described trough sections are 15mm.
The length of described canned paragraph is set to length L1, the length of puncture outfit casing tube is set to length L2；Described length L1With described length L2Ratio range be: not less than 1:2.
Multiple anti-slip veins is distributed on the outer peripheral face of described sleeve pipe fixed part, and the orthographic projection of described anti-slip veins is all in inverted isosceles trapezoid.
Present invention also offers a kind of perforator, including aforesaid puncture outfit casing tube.
The puncture outfit casing tube of the present invention and have its perforator, by arranging wavy anti-slip part to increase frictional force during operation, to reach fixing effect on canned paragraph；This design simple in construction, it is not necessary to external fixing device, when doctor operates, it is not necessary to extra operating procedure, uses simple；It is greatly shortened operating time, improves procedure efficiency.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the puncture outfit casing tube of the embodiment of the present invention；
Fig. 2 is another schematic diagram of the puncture outfit casing tube of the embodiment of the present invention；
Fig. 3 is the axonometric chart of the puncture casing of the embodiment of the present invention.
Detailed description of the invention
Embodiments of the invention are described below in detail, and the example of described embodiment is shown in the drawings, and the most same or similar label represents same or similar element or has the element of same or like function.
In describing the invention, it will be appreciated that, term " " center ", " longitudinally ", " laterally ", " length ", " width ", " thickness ", on " ", D score, " front ", " afterwards ", " left ", " right ", " vertically ", " level ", " push up ", " end ", " interior ", " outward ", " axially ", " radially ", orientation or the position relationship of the instruction such as " circumferential " are based on orientation shown in the drawings or position relationship, it is for only for ease of the description present invention 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 considered as limiting the invention.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or implicitly include at least one this feature.In describing the invention, " multiple " are meant that at least two, such as two, three etc., unless otherwise expressly limited specifically.
The embodiment described below with reference to accompanying drawing is exemplary, it is intended to is used for explaining the present invention, and is not considered as limiting the invention.
As it is shown in figure 1, a kind of puncture outfit casing tube, including connecting portion 1；Sleeve body, the rear end of sleeve body is connected on connecting portion.Sleeve body includes canned paragraph 2 and sleeve pipe leading portion 3, and the surface configuration of canned paragraph 2 has wavy anti-slip part.As shown in Figures 2 and 3, puncture outfit casing tube 10 is open circles tubulose.Puncture outfit casing tube 10 farther includes the preposition portion of sleeve pipe 3, and the rear end in the preposition portion of sleeve pipe 3 is smooth with sleeve pipe fixed part 2 front end to be connected, and the front end face in the preposition portion of sleeve pipe 3 is oblique section, otch ovalize.When starting to puncture, summit 31 elder generation on the end face in the preposition portion of sleeve pipe 3 and patient contact, contact surface is little, and frictional force is little, easily punctures and steps in the patient；Then, progressively expanding and the contact area of patient along the oblique section 32 in the preposition portion of sleeve pipe 3 with summit 31 for basic point, frictional force slowly increases, until the preposition portion of sleeve pipe 3 fully enters in the patient, and then makes sleeve pipe fixed part 2 enter to fix to correct position in the patient.The front end in the preposition portion of sleeve pipe 3 is oblique section, rubs little when starting to puncture, and then frictional force is slowly increased, it is easy to puncture.
As shown in Figures 2 and 3, the internal diameter of rear end, sleeve pipe preposition portion 3, connecting portion 1 internal diameter all identical with the internal diameter of sleeve pipe fixed part 2, more than the external diameter of puncture needle, it is simple to puncture needle penetrates puncture casing；The internal diameter of front end, sleeve pipe preposition portion 3 is less than or equal to the internal diameter of rear end, sleeve pipe preposition portion 3, the internal diameter in the preposition portion of sleeve pipe 3 is gradually reduced from back to front, the internal diameter of the port in the preposition portion of sleeve pipe 3 is close to the external diameter of puncture needle, when puncture needle enters sleeve pipe, the port in the preposition portion of sleeve pipe 3 is close to puncture needle, form seamless connecting, and junction transitions smooth, during operation, be conducive to puncturing and enter in the patient, effectively prevent that the gap between puncture outfit casing tube 10 and puncture needle can press from both sides meat, perforator is difficult to situation about entering in the patient.
The length of canned paragraph 2 is set to length L1, the length of puncture outfit casing tube is set to length L2；Length L1With length L2Ratio range be: not less than 1:2.Owing to the operating habit of doctor is different: such as the insertion depth etc. of puncture outfit casing tube, the figure of patient is different: the thickness such as meat wall is different, in the present embodiment, as preferably, length L1With length L2Ratio range be: not less than 2:3.Such design, it is adaptable to the doctor that each operating habit is different, the most different doctors tackles different client need, adjusts puncture outfit casing tube insertion depth.
Multiple anti-slip veins is distributed on the side face of sleeve pipe fixed part 2, and anti-slip veins can be uniformly distributed, it is possible to uneven distribution, can meet frictional force and require.When perforator is erect (bushing connection 1 upper, the preposition portion of sleeve pipe 3 under time), anti-slip veins with the parallel surface of perforator central axis orthographic projection all in inverted isosceles trapezoid, which increase the contact surface of entirety, thus increase frictional force.Further, the long base of isosceles trapezoid is upward, short base arranges down, on the one hand, the short one end of each anti-slip veins is introduced in the patient, drives long one end to enter in the patient, it is easy to puncture；On the other hand, after entering in the patient, one end of each anti-slip veins length is arranged upward, short one end is arranged down, perforator can be fixed at an arbitrary position, can effectively prevent in operation process, make perforator landing because of the operating theater instruments in mobile perforator, it is ensured that its stability connected.
Wherein, anti-slip part contains crest section 21 and trough section 22, and crest section 21 is containing maximum outside diameter d1And trough section 22 is containing minimum outer diameter d2, maximum outside diameter d1It it is minimum outer diameter d2X times, wherein 1 < X 1.5.In the present embodiment, it is preferable that maximum outside diameter d1It it is minimum outer diameter d21 ~ 1.2 times, i.e. 1 < X 1.2.If maximum outside diameter d1Equal to minimum outer diameter d2, then the most whole substantially rectilinear type of canned paragraph 2, produce the effect that frictionally secures is only anti-slip veins, frictionally secures effect the most notable；If maximum outside diameter d1More than minimum outer diameter d21.5 times, then owing to crest section 21 amplitude concavo-convex with trough section 22 is excessive, when puncture outfit casing tube enters human body, easily the mini-incision to patient causes unnecessary secondary damage, expands wound.
Distance at the maximum outside diameter of two the most adjacent described crest sections 21 or the distance at the minimum outer diameter of the most adjacent two described trough sections 22 are 10mm ~ 20mm.In the present embodiment, it is preferable that the distance at the maximum outside diameter of two the most adjacent described crest sections 21 or the distance at the minimum outer diameter of the most adjacent two described trough sections 22 are 15mm.
If the distance at the maximum outside diameter of the most adjacent two crest sections 21 is less than 10mm, and minimum outer diameter d2With maximum outside diameter d1Ratio is equal to 1:1, then the most whole substantially rectilinear type of canned paragraph 2, and produce the effect that frictionally secures is only anti-slip veins, frictionally secures effect the most notable；If the distance at the maximum outside diameter of the most adjacent two described crest sections 21 is less than 10mm, and maximum outside diameter d1More than minimum outer diameter d21.4 times, then owing to crest section 21 and trough section 22 are spaced less, the effect frictionally secured is little.
If the distance at the maximum outside diameter of the most adjacent two described crest sections 21 is more than 20mm, maximum outside diameter d1More than minimum outer diameter d21.4 times, then owing to crest section 21 is little with trough section 22 frequency, spacing is big, and concavo-convex amplitude is excessive, and when puncture outfit casing tube enters human body, easily the mini-incision to patient causes unnecessary secondary damage, expands wound.
In the present embodiment, it is preferable that the crest section maximum outside diameter d of sleeve pipe fixed part 21Scope is 7.5 ~ 20mm, trough section minimum outer diameter d in stage casing 222Scope is 7 ~ 18mm；Length L of canned paragraph 21Scope is 40 ~ 100mm, length L of puncture outfit casing tube2Scope is 50 ~ 200mm.
In sum, puncture outfit casing tube according to embodiments of the present invention and there is its perforator, corrugated profile designs, structure is reliable, between specific range, and design crest section and the difference in height of trough section, when entering stomach wall, increase the contact area of puncture outfit casing tube wall and stomach wall, the frictional force of generation, will substantially strengthen the bed knife of toothed area and stomach wall；This design simple in construction, it is not necessary to external fixing device, when doctor operates, it is not necessary to extra operating procedure, uses simple；Substantially increase operation schedule.
It should be pointed out that, for the present invention through absolutely proving, also can have the embodiment of multiple conversion and remodeling, it is not limited to the specific embodiment of above-mentioned embodiment.Above-described embodiment is as just the explanation of the present invention rather than limitation of the present invention.In a word, protection scope of the present invention should include that those obviously convert to those skilled in the art or substitute and remodeling.
In the present invention, unless otherwise clearly defined and limited, term " is installed ", " being connected ", " connection ", the term such as " fixing " should be interpreted broadly, and connects for example, it may be fixing, it is also possible to be to removably connect, or integral；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 connection or the interaction relationship of two elements of two element internals, unless otherwise clear and definite restriction.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be that the first and second features directly contact, or the first and second features are by intermediary mediate contact.And, fisrt feature second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or be merely representative of fisrt feature level height higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be fisrt feature immediately below second feature or obliquely downward, or be merely representative of fisrt feature level height less than second feature.
In the description of this specification, the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means that the specific features, structure, material or the feature that combine this embodiment or example description are contained at least one embodiment or the example of the present invention.In this manual, the schematic representation of above-mentioned term is necessarily directed to identical embodiment or example.And, the specific features of description, structure, material or feature can be to combine in one or more embodiments in office or example in an appropriate manner.Additionally, in the case of the most conflicting, the feature of the different embodiments described in this specification or example and different embodiment or example can be combined and combine by those skilled in the art.
Although above it has been shown and described that embodiments of the invention, it is understandable that, above-described embodiment is exemplary, it is impossible to be interpreted as limitation of the present invention, and above-described embodiment can be changed, revises, replace and modification by those of ordinary skill in the art within the scope of the invention.
Claims (10)
1. a puncture outfit casing tube, it is characterised in that include
Connecting portion；
Sleeve body, the rear end of described sleeve body is connected on described connecting portion；
Wherein, described sleeve body includes that canned paragraph, the outer surface of described canned paragraph are provided with wavy anti-slip part.
Puncture outfit casing tube the most according to claim 1, it is characterized in that, described puncture outfit casing tube is hollow circular-tube, and described puncture outfit casing tube farther includes the preposition portion of sleeve pipe, the rear end in the preposition portion of described sleeve pipe is smooth with sleeve pipe fixed part front end to be connected, and the front end face in the preposition portion of described sleeve pipe is oblique section.
Puncture outfit casing tube the most according to claim 2, it is characterized in that, the internal diameter of described connecting portion, the internal diameter of described sleeve pipe fixed part, rear end, described sleeve pipe preposition portion internal diameter the most identical, the internal diameter of front end, described sleeve pipe preposition portion is less than or equal to the internal diameter of rear end, described sleeve pipe preposition portion.
Puncture outfit casing tube the most according to claim 1, it is characterised in that described anti-slip part includes crest section and trough section, and described crest section contains maximum outside diameter d1, described trough section contains minimum outer diameter d2, described maximum outside diameter d1It it is described minimum outer diameter d21 ~ 1.5 times.
Puncture outfit casing tube the most according to claim 4, it is characterised in that described maximum outside diameter d1It it is described minimum outer diameter d21 ~ 1.2 times.
Puncture outfit casing tube the most according to claim 4, it is characterised in that the distance at the maximum outside diameter of two the most adjacent described crest sections or the distance at the minimum outer diameter of the most adjacent two described trough sections are 10mm ~ 20mm.
Puncture outfit casing tube the most according to claim 6, it is characterised in that the distance at the maximum outside diameter of two the most adjacent described crest sections or the distance at the minimum outer diameter of the most adjacent two described trough sections are 15mm.
Puncture outfit casing tube the most according to claim 1, it is characterised in that the length of described canned paragraph is set to length L1, the length of puncture outfit casing tube is set to length L2；Described length L1With described length L2Ratio range be: not less than 1:2.
Puncture outfit casing tube the most according to claim 1, it is characterised in that multiple anti-slip veins is distributed on the outer peripheral face of described sleeve pipe fixed part, the orthographic projection of described anti-slip veins is all in inverted isosceles trapezoid.
10. a perforator, it is characterised in that include the puncture outfit casing tube as described in any one of claim 19.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610237858.9A CN105943128A (en) | 2016-04-16 | 2016-04-16 | Puncture outfit cannula and puncture outfit with the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610237858.9A CN105943128A (en) | 2016-04-16 | 2016-04-16 | Puncture outfit cannula and puncture outfit with the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105943128A true CN105943128A (en) | 2016-09-21 |
Family
ID=56917584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610237858.9A Pending CN105943128A (en) | 2016-04-16 | 2016-04-16 | Puncture outfit cannula and puncture outfit with the same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105943128A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5766163A (en) * | 1996-07-03 | 1998-06-16 | Eclipse Surgical Technologies, Inc. | Controllable trocar for transmyocardial revascularization (TMR) via endocardium method and apparatus |
| US6808492B2 (en) * | 2002-08-16 | 2004-10-26 | Linvatec Corporation | Endoscopic cannula fixation system |
| CN102647951A (en) * | 2009-10-08 | 2012-08-22 | 伊西康内外科公司 | Trocar assembly |
| CN204274588U (en) * | 2015-03-13 | 2015-04-22 | 常州洛克曼医疗器械有限公司 | Perforator |
| CN104799911A (en) * | 2014-01-29 | 2015-07-29 | 伊西康内外科公司 | Puncture apparatus |
| CN204618350U (en) * | 2015-01-27 | 2015-09-09 | 宁波一清医疗科技发展有限公司 | A kind of laparoscopic surgery puncture casing |
| WO2015139312A1 (en) * | 2014-03-21 | 2015-09-24 | 上海林超医疗设备科技有限公司 | Puncture outfit for laparoscope |
-
2016
- 2016-04-16 CN CN201610237858.9A patent/CN105943128A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5766163A (en) * | 1996-07-03 | 1998-06-16 | Eclipse Surgical Technologies, Inc. | Controllable trocar for transmyocardial revascularization (TMR) via endocardium method and apparatus |
| US6808492B2 (en) * | 2002-08-16 | 2004-10-26 | Linvatec Corporation | Endoscopic cannula fixation system |
| CN102647951A (en) * | 2009-10-08 | 2012-08-22 | 伊西康内外科公司 | Trocar assembly |
| CN104799911A (en) * | 2014-01-29 | 2015-07-29 | 伊西康内外科公司 | Puncture apparatus |
| WO2015139312A1 (en) * | 2014-03-21 | 2015-09-24 | 上海林超医疗设备科技有限公司 | Puncture outfit for laparoscope |
| CN204618350U (en) * | 2015-01-27 | 2015-09-09 | 宁波一清医疗科技发展有限公司 | A kind of laparoscopic surgery puncture casing |
| CN204274588U (en) * | 2015-03-13 | 2015-04-22 | 常州洛克曼医疗器械有限公司 | Perforator |
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| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: Dongsheng Road, Jiangyin city 214437 Jiangsu city of Wuxi province No. 6 D3 Applicant after: Jiangsu wind and medical equipment Limited by Share Ltd Address before: Dongsheng Road, Jiangyin city 214437 Jiangsu city of Wuxi province No. 6 D3 Applicant before: Jiangsu wind and medical equipment Co., Ltd |
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| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Sun Baofeng Inventor after: Ma Meng Inventor before: Sun Baofeng Inventor before: Huang Chen Inventor before: Ma Meng |
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Application publication date: 20160921 |