CN108814659A - A kind of neurosurgery retractor holder - Google Patents
A kind of neurosurgery retractor holder Download PDFInfo
- Publication number
- CN108814659A CN108814659A CN201810410809.XA CN201810410809A CN108814659A CN 108814659 A CN108814659 A CN 108814659A CN 201810410809 A CN201810410809 A CN 201810410809A CN 108814659 A CN108814659 A CN 108814659A
- Authority
- CN
- China
- Prior art keywords
- connecting rod
- fixing piece
- fastening bolt
- retainer body
- drag hook
- 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.)
- Granted
Links
- 230000037237 body shape Effects 0.000 abstract description 2
- 238000001356 surgical procedure Methods 0.000 description 9
- 210000004556 brain Anatomy 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 201000010099 disease Diseases 0.000 description 4
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 210000003128 head Anatomy 0.000 description 3
- 210000000278 spinal cord Anatomy 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 210000005036 nerve Anatomy 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000011282 treatment Methods 0.000 description 2
- 206010008111 Cerebral haemorrhage Diseases 0.000 description 1
- 208000032843 Hemorrhage Diseases 0.000 description 1
- 206010061218 Inflammation Diseases 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
- 208000018737 Parkinson disease Diseases 0.000 description 1
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 230000004064 dysfunction Effects 0.000 description 1
- 206010015037 epilepsy Diseases 0.000 description 1
- 230000004054 inflammatory process Effects 0.000 description 1
- 238000011221 initial treatment Methods 0.000 description 1
- 210000000653 nervous system Anatomy 0.000 description 1
- 208000004296 neuralgia Diseases 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 210000004761 scalp Anatomy 0.000 description 1
- 210000003625 skull Anatomy 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000000007 visual effect 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, e.g. tourniquets
- A61B17/02—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (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 invention belongs to neurosurgical operation instrument domain variabilities to disclose a kind of neurosurgery retractor holder, including retainer body, support rod, fixing piece and drag hook, and the retainer body shape is U-shaped structure；The retainer body lower end is uniformly provided with several support rods, and the support rod includes first connecting rod, the second connecting rod, spherical connecting rod and the first fastening bolt, and the second connecting rod upper end and the outer spherical face of spherical connecting rod are affixed；The fixing piece is equipped with several, and shape is n shape structure, is set in retainer body from top to bottom, and the inner face of the left and right ends of the fixing piece is equipped with concave volume structure, and the fixing piece upper surface is equipped with threaded hole；Drag hook bar is rectangle structure, and intermediate position is equipped with rectangular through-hole, and the neurosurgery retractor holder further includes the second fastening bolt；Apparatus of the present invention structure is simple, position is easily adjustable, is suitable for neurosurgery uses.
Description
Technical field
The present invention relates to neurosurgical operation instrument technical fields, and in particular to a kind of neurosurgery retractor holder.
Background technique
Neurosurgery (Neurosurgery) is a branch in surgery, is in surgery to perform the operation as primary treatment
On the basis of means, using unique neurosurgery science study method, nerve system of human body is studied, such as brain, spinal cord and surrounding mind
Through system and associated subsidiary body, such as skull, scalp, the isostructural damage of cerebrovascular meninx, inflammation, tumour, abnormal
Shape and certain hereditary dysbolisms or dysfunction disease, such as：The cause of disease and morbidity of the diseases such as epilepsy, Parkinson's disease, neuralgia
Mechanism, and explore new diagnosis, treatment, prevention technique a high, precision and frontier subject.Be cure mainly the brain as caused by wound,
The disease of the nervous systems such as spinal cord, such as cerebral hemorrhage amount of bleeding threat to life, traffic accident cause brain wound or brain to have oncothlipsis
Need operative treatment etc..
In the prior art, neurosurgery is usually needed using drag hook, in order to allow doctor visual field when operation
It is more clear, still, drag hook needs special messenger always during use to pull fixation, and operation is cumbersome, returns simultaneously
Medical worker increases great work difficulty.Application No. is：The Chinese invention patent of CN201710690938.4 discloses " one
Kind neurosurgery retractor holder " comprising rectangular susceptor, rectangular susceptor front face are provided with strip groove, peace in strip groove
No.1 bar shaped sliding rail is filled, a pair of of No.1 movable pulley is assembled on No.1 bar shaped sliding rail, No.1 movable pulley upper wall surface installs No.1 support
Seat, No.1 support base upper wall surface install semicircular plate, the fixed multiple support rods of the rectangular susceptor front face, support rod side wall surface
No.1 bar shaped gear is fixed, lower wall surface is respectively mounted No. two bar shaped sliding rails on support rod, and multiple No. two are assembled on No. two bar shaped sliding rails
Movable pulley, No. two movable pulley side wall surfaces install No. two support bases, and No. two support base side wall surfaces install No.1 telescopic rod, and No.1 is flexible
No. three support bases are fixed in one end face of bar, and the corresponding No. three support base side wall surfaces in a pair of of position install fixed block, fixed block side wall
The fixed No. two bar shaped gears being meshed with No.1 bar shaped gear in face, the fixed folding shape bar of fixed block side wall surface, the folding shape bar side
Wall surface is provided with No.1 circular through hole.Structure is complicated for the invention device, support base height and angle fixation cannot be according to patient's hand
Art position is adjusted and fixes the position of drag hook and concentrates in together, cannot accomplish to adjust according to surgery location drag hook position and away from
From and adjustment process it is more complicated.In consideration of it, how a kind of structure is simple, position is easily adjustable, is suitable for neurosurgery
Retractor holder is those skilled in the art's technical issues that need to address.
Summary of the invention
The present invention for structure is complicated in the prior art, support base height and angle fixation cannot be according to patients surgery position
Set and be adjusted and fix the position of drag hook and concentrate in together, cannot accomplish to adjust according to surgery location drag hook position and distance and
The more complicated problem of adjustment process, and a kind of neurosurgery retractor holder is provided.
The present invention using following technical scheme in order to solve the above technical problems, realized：
A kind of neurosurgery retractor holder is designed, the neurosurgery retractor holder includes retainer body, branch
Strut, fixing piece and drag hook, the retainer body shape are U-shaped structure, and section is rectangle structure, rectangle structure
The middle position of left and right is equipped with convex body structure, and the convex body structure is semicircular structure；The retainer body lower end
Several support rods are uniformly provided with, the support rod includes that first connecting rod, the second connecting rod, spherical connecting rod and first are tight
Fixing bolt, the first connecting rod shape are hollow cylindrical structure, and the upper position of side end face is equipped with the first fastening spiral shell
Bolt, inside are inserted with the second connecting rod, and the second connecting rod shape is cylindrical structure, in first connecting rod up and down
It moves through the first fastening bolt to be fixed, and the second connecting rod upper end and the outer spherical face of spherical connecting rod are solid
It connects, the spherical connecting rod includes motion bar, and the lower end of the motion bar and retainer body is fixed together；Described
Fixing piece is equipped with several, and shape is n shape structure, is set in retainer body from top to bottom, the left and right of the fixing piece
The inner face at both ends is equipped with concave volume structure, and the concave volume structure matches with the convex body structure in retainer body, described
Fixing piece upper surface be equipped with threaded hole；The drag hook includes drag hook bar and coupler body, and the drag hook bar is rectangle knot
Structure, intermediate position are equipped with rectangular through-hole, and the neurosurgery retractor holder further includes the second fastening bolt, described
The second fastening bolt pass through through-hole after be connected through a screw thread with the threaded hole on fixing piece, the nut of second fastening bolt
Diameter is greater than the width of through-hole.
Working principle：Retainer body in apparatus of the present invention is fixed on the motion bar of support rod, wherein support rod
First connecting rod and the second connecting rod with this can achieve the purpose that retainer body up and down adjustment by automatic telescopic up and down, while the
Two connecting rod upper ends are connected with spherical connecting rod, and by the way that spherical connecting rod is arranged, the motion bar in spherical connecting rod can be certainly
It, can be by the skin of brain for cranium brain class nerve surgery with the purpose of this angular adjustment for realizing retainer body by rotating
Skin is caught in downward direction, and maximum with the operation area that this shows, the up and down adjustment of apparatus of the present invention and rotation are adjusted very
It is convenient.The fixing piece of apparatus of the present invention is equipped with concave volume structure, and has convex body structure in retainer body, when fixing piece is set in
When in retainer body, concave volume structure matches with convex body structure, and fixed stability is relatively good, while fixing piece can be solid
Determine to automatically move on device ontology to be conducive to adjust the optimum position of drag hook, and the very convenient increase of fixing piece or taking-up
Preoperative quick adjusting.Meanwhile through-hole is equipped on drag hook in apparatus of the present invention, drag hook is arranged on fixing piece, by the
Two fastening bolts pass through through-hole to fix drag hook, and the position by adjusting through-hole and the second fastening bolt can easy adjustment drawing
The distance between hook and surgery location, then screwing the second fastening bolt can be fixed.
Preferably, there are three the support rod is set.
Preferably, the number of the fixing piece and drag hook is equal.
Preferably, the height adjustment range of the support rod is 5-30cm.
Preferably, the distance at the retainer body both ends is not less than 20cm.
Preferably, the spherical connecting rod rotational angle is 360 °.
A kind of neurosurgery retractor holder proposed by the present invention, beneficial effect are：
(1) height for the adjusting retainer body that apparatus of the present invention support rod up and down adjustment can be convenient, to adapt to difference
Neurosurgery position；Support rod may be rotated adjusting simultaneously, to reach the beneficial effect for changing drag hook and stretching out angle,
Middle drag hook is horizontally disposed with apparent progress meaning compared with the prior art, can be higher than the present invention to operative site height
The position of device carries out drag hook and fixes；
(2) the support rod up and down adjustment of apparatus of the present invention is operated by the first fastening bolt, and rotation, which is adjusted, passes through ball
Shape connecting rod is operated, the simple and convenient, beneficial effect convenient for operation with regulative mode；
(3) apparatus of the present invention fixing piece is set in retainer body, very convenient to be increased and removed fixing piece,
The quantity of the setting fixing piece and drag hook that can be convenient when different surgical procedures；
(4) retainer body of apparatus of the present invention is U-shaped structure, and the most of operating position of neurosurgery is located at
Near the head of patient, spinal cord and peripheral system, so the shape of U-shaped structure is particularly suitable for being set in the head of human body,
Meet ergonomics, facilitates drag hook；
(5) apparatus of the present invention structure is simple, position is easily adjustable, is suitable for neurosurgery uses.
Detailed description of the invention
The present invention is described in further detail for embodiment in reference to the accompanying drawing, but does not constitute to of the invention
Any restrictions.
Fig. 1 is the structural schematic diagram of apparatus of the present invention；
Fig. 2 is the partial structural diagram of retainer body in apparatus of the present invention；
Fig. 3 is the connection schematic diagram of fixing piece in apparatus of the present invention, drag hook bar and the second fastening bolt；
Fig. 4 is the structural schematic diagram of support rod in apparatus of the present invention.
In figure：Retainer body 1, support rod 2, fixing piece 3, drag hook 4, convex body structure 5, first connecting rod 6, second connect
Bar 7, the first fastening bolt 9, motion bar 10, concave volume structure 11, threaded hole 12, drag hook bar 13, coupler body 14, leads at spherical connecting rod 8
Hole 15, the second fastening bolt 16.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.
Refering to shown in attached drawing 1- attached drawing 4, a kind of neurosurgery retractor holder of the invention, the neurosurgery drag hook
Fixator includes retainer body 1, support rod 2, fixing piece 3 and drag hook 4, and 1 shape of retainer body is U-shaped structure,
Its section is rectangle structure, and the middle position of rectangle structure or so is equipped with convex body structure 5, and the convex body structure 5 is
Semicircular structure；1 lower end of retainer body is uniformly provided with several support rods 2, and the support rod 2 includes the first company
Extension bar 6, the second connecting rod 7, spherical connecting rod 8 and the first fastening bolt 9,6 shape of first connecting rod are hollow cylinder
Body structure, the upper position of side end face are equipped with the first fastening bolt 9, and inside is inserted with the second connecting rod 7, and described second connects
7 shape of extension bar is cylindrical structure, moves up and down in first connecting rod 6 and is fixed by the first fastening bolt 9, and
Second connecting rod, 7 upper end and the outer spherical face of spherical connecting rod 8 are affixed, and the spherical connecting rod 8 includes motion bar
10, the lower end of the motion bar 10 and retainer body 1 is fixed together；The fixing piece 3 is equipped with several, and shape is
N shape structure, is set in from top to bottom in retainer body 1, and the inner face of the left and right ends of the fixing piece 3 is equipped with concave volume
Structure 11, the concave volume structure 11 match with the convex body structure 5 in retainer body 1, on 3 upper surface of fixing piece
Equipped with threaded hole 12；The drag hook 4 includes drag hook bar 13 and coupler body 14, and the drag hook bar 13 is rectangle structure, wherein
Meta position has installed rectangular through-hole 15, and the neurosurgery retractor holder further includes the second fastening bolt 16, described
Second fastening bolt 16 is connected through a screw thread after passing through through-hole 15 with the threaded hole 12 on fixing piece 3, second fastening bolt
16 head diameter is greater than the width of through-hole 15.
There are three the support rod 2 is set；The fixing piece 3 is equal with the number of drag hook 4；The height of the support rod 2
Degree is 30cm；The distance at 1 both ends of retainer body is 20cm；8 rotational angle of spherical connecting rod is 360 °.
Working principle：Retainer body 1 in apparatus of the present invention is fixed on the motion bar 10 of support rod 2, wherein supporting
The first connecting rod 6 of bar 2 and the second connecting rod 7 with this can achieve the purpose that 1 up and down adjustment of retainer body by automatic telescopic up and down,
It is connected with spherical connecting rod 8 in 7 upper end of the second connecting rod simultaneously, by spherical connecting rod 8, motion bar 10 can freely turn
Dynamic, with the purpose of this angular adjustment for realizing retainer body 1, the up and down adjustment of apparatus of the present invention and rotation adjusting are very square
Just.The fixing piece 3 of apparatus of the present invention is equipped with concave volume structure 11, and has convex body structure 5 in retainer body 1, when 3 sets of fixing piece
When being located in retainer body 1, concave volume structure 11 matches with convex body structure 5, and fixed stability is relatively good, while fixing piece
3 can automatically move in retainer body 1 to adjust the optimum position of drag hook 4, and the very convenient increase of fixing piece 3 or
It takes out, is conducive to preoperative quick adjusting.Meanwhile through-hole 15 is equipped on drag hook 4 in apparatus of the present invention, the setting of drag hook 4 exists
On fixing piece 3, through-hole 15 is passed through by the second fastening bolt 16 to fix drag hook 4, by adjusting through-hole 15 and the second fastening spiral shell
The position of bolt 16 can the distance between easy adjustment drag hook 4 and surgery location, then screw the second fastening bolt 16
It is fixed.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (6)
1. a kind of neurosurgery retractor holder, which is characterized in that the neurosurgery retractor holder includes fixator sheet
Body (1), support rod (2), fixing piece (3) and drag hook (4), the retainer body (1) shape are U-shaped structure, and section is
Rectangle structure, the middle position of rectangle structure or so are equipped with convex body structure (5), and the convex body structure (5) is semicircle
Shape structure；Described retainer body (1) lower end is uniformly provided with several support rods (2), and the support rod (2) includes first
Connecting rod (6), the second connecting rod (7), spherical connecting rod (8) and the first fastening bolt (9), the first connecting rod (6) is outside
Shape is hollow cylindrical structure, and the upper position of side end face is equipped with the first fastening bolt (9), and inside is inserted with the second connecting rod
(7), the second connecting rod (7) shape is cylindrical structure, is moved up and down in first connecting rod (6) and by first
Fastening bolt (9) is fixed, and the second connecting rod (7) upper end and the outer spherical face of spherical connecting rod (8) are affixed, institute
The spherical connecting rod (8) stated includes motion bar (10), and the motion bar (10) and the lower end of retainer body (1) are fixed in one
It rises；The fixing piece (3) is equipped with several, and shape is n shape structure, is set on retainer body (1) from top to bottom, institute
The inner face for stating the left and right ends of fixing piece (3) is equipped with concave volume structure (11), the concave volume structure (11) and fixator sheet
Convex body structure (5) on body (1) matches, and the fixing piece (3) upper surface is equipped with threaded hole (12)；The drag hook
It (4) include drag hook bar (13) and coupler body (14), the drag hook bar (13) is rectangle structure, and intermediate position is equipped with rectangle
Through-hole (15), the neurosurgery retractor holder further includes the second fastening bolt (16), second fastening bolt
(16) it passes through through-hole (15) to be connected through a screw thread with the threaded hole (12) on fixing piece (3) afterwards, second fastening bolt (16)
Head diameter be greater than through-hole (15) width.
2. a kind of neurosurgery retractor holder according to claim 1, which is characterized in that the support rod (2) is set
There are three.
3. a kind of neurosurgery retractor holder according to claim 1, which is characterized in that the fixing piece (3) and drawing
The number of hook (4) is equal.
4. a kind of neurosurgery retractor holder according to claim 1, which is characterized in that the support rod (2)
Height adjustment range is 5-30cm.
5. a kind of neurosurgery retractor holder according to claim 1, which is characterized in that the retainer body
(1) distance at both ends is not less than 20cm.
6. a kind of neurosurgery retractor holder according to claim 1, which is characterized in that the spherical connecting rod
(8) rotational angle is 360 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810410809.XA CN108814659B (en) | 2018-05-02 | 2018-05-02 | Retractor fixer for neurosurgery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810410809.XA CN108814659B (en) | 2018-05-02 | 2018-05-02 | Retractor fixer for neurosurgery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108814659A true CN108814659A (en) | 2018-11-16 |
| CN108814659B CN108814659B (en) | 2021-04-13 |
Family
ID=64147892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810410809.XA Expired - Fee Related CN108814659B (en) | 2018-05-02 | 2018-05-02 | Retractor fixer for neurosurgery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108814659B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111904500A (en) * | 2020-09-18 | 2020-11-10 | 张震 | Retractor fixer for neurosurgery |
| CN111973239A (en) * | 2020-09-09 | 2020-11-24 | 山东省日照市人民医院 | Retractor fixer that neurosurgery was used |
| CN113768561A (en) * | 2021-10-18 | 2021-12-10 | 郑州大学第一附属医院 | Retractor fixer for neurosurgery and using method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2474092Y (en) * | 2001-04-17 | 2002-01-30 | 徐兆冰 | Multifunction retractor in neurosurgery |
| WO2006093844A2 (en) * | 2005-03-02 | 2006-09-08 | The LeVahn Intellectual Property Holding Company, LLC | Method and apparatus for surgical retraction |
| CN201939399U (en) * | 2010-10-15 | 2011-08-24 | 张凤霞 | Medical operation drag hooks |
| CN202191322U (en) * | 2011-08-25 | 2012-04-18 | 葛海涛 | Hook for craniocerebral operations in neurosurgery |
| CN205849490U (en) * | 2016-06-02 | 2017-01-04 | 中国人民解放军第四军医大学 | A kind of elevating three-dimensional drag hook support |
| CN206295367U (en) * | 2016-08-30 | 2017-07-04 | 王淼 | A kind of general surgery tractor |
| CN107242888A (en) * | 2017-07-11 | 2017-10-13 | 戴晓宇 | Anus disc type drag hook |
-
2018
- 2018-05-02 CN CN201810410809.XA patent/CN108814659B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2474092Y (en) * | 2001-04-17 | 2002-01-30 | 徐兆冰 | Multifunction retractor in neurosurgery |
| WO2006093844A2 (en) * | 2005-03-02 | 2006-09-08 | The LeVahn Intellectual Property Holding Company, LLC | Method and apparatus for surgical retraction |
| CN201939399U (en) * | 2010-10-15 | 2011-08-24 | 张凤霞 | Medical operation drag hooks |
| CN202191322U (en) * | 2011-08-25 | 2012-04-18 | 葛海涛 | Hook for craniocerebral operations in neurosurgery |
| CN205849490U (en) * | 2016-06-02 | 2017-01-04 | 中国人民解放军第四军医大学 | A kind of elevating three-dimensional drag hook support |
| CN206295367U (en) * | 2016-08-30 | 2017-07-04 | 王淼 | A kind of general surgery tractor |
| CN107242888A (en) * | 2017-07-11 | 2017-10-13 | 戴晓宇 | Anus disc type drag hook |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111973239A (en) * | 2020-09-09 | 2020-11-24 | 山东省日照市人民医院 | Retractor fixer that neurosurgery was used |
| CN111904500A (en) * | 2020-09-18 | 2020-11-10 | 张震 | Retractor fixer for neurosurgery |
| CN113768561A (en) * | 2021-10-18 | 2021-12-10 | 郑州大学第一附属医院 | Retractor fixer for neurosurgery and using method |
| CN113768561B (en) * | 2021-10-18 | 2023-11-24 | 郑州大学第一附属医院 | Neurosurgery retractor fixer and using method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108814659B (en) | 2021-04-13 |
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Effective date of registration: 20211224 Address after: 272000 rooms 255 and 256, second floor, qinzhuang community office building, 141 Fuhe Road, Rencheng District, Jining City, Shandong Province Patentee after: Shandong Jingxu Medical Instrument Co.,Ltd. Address before: Liangshan County in Shandong province 272600 Jining City Road No. 80 Patentee before: Guo Liangwen |
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