CN107714139B - Test manual craniotomy drill - Google Patents
Test manual craniotomy drill Download PDFInfo
- Publication number
- CN107714139B CN107714139B CN201711167971.5A CN201711167971A CN107714139B CN 107714139 B CN107714139 B CN 107714139B CN 201711167971 A CN201711167971 A CN 201711167971A CN 107714139 B CN107714139 B CN 107714139B
- Authority
- CN
- China
- Prior art keywords
- handle
- drilling pipe
- cam
- positioning seat
- fixed pin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000007428 craniotomy Methods 0.000 title claims abstract description 10
- 238000005553 drilling Methods 0.000 claims abstract description 46
- 238000002474 experimental method Methods 0.000 claims abstract description 6
- 241001074085 Scophthalmus aquosus Species 0.000 claims abstract description 4
- 238000000465 moulding Methods 0.000 claims description 6
- 229920003023 plastic Polymers 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 210000003625 skull Anatomy 0.000 abstract description 20
- 238000010586 diagram Methods 0.000 description 6
- 230000008602 contraction Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000005013 brain tissue Anatomy 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 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
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/1695—Trepans or craniotomes, i.e. specially adapted for drilling thin bones such as the skull
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/17—Guides or aligning means for drills, mills, pins or wires
- A61B17/171—Guides or aligning means for drills, mills, pins or wires for external fixation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/10—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges for stereotaxic surgery, e.g. frame-based stereotaxis
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/10—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges for stereotaxic surgery, e.g. frame-based stereotaxis
- A61B2090/103—Cranial plugs for access to brain
Landscapes
- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medical Informatics (AREA)
- Animal Behavior & Ethology (AREA)
- Veterinary Medicine (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Public Health (AREA)
- Molecular Biology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- General Health & Medical Sciences (AREA)
- Dentistry (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Neurosurgery (AREA)
- Pathology (AREA)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
- Surgical Instruments (AREA)
- Earth Drilling (AREA)
Abstract
It include positioning seat the invention discloses a kind of manual craniotomy drill of experiment, drilling pipe, adjusting nut part, fixed pin tightens handle and cam pack；The drilling pipe includes drilling pipe portion, pierces distance adjustment and knob；The drilling pipe subordinate end forms brill tooth；The fixed pin includes taper bit and shank；The shank forms cam connecting plate in upper end；The cam connecting plate offers cam connecting hole；The cam pack includes handle and cam；In use, taper bit is made to enter skull appropriate depth；Knob is rotated at this time, bores tooth as drilling pipe moves down while rotating, when the protrusion of adjusting nut part outer wall offsets with positioning seat, skull is drilled open just, and taper bit is fixed on the skull block after being drilled, to be removed.
Description
Technical field
The invention belongs to medical instruments field more particularly to a kind of manual craniotomy drills of experiment.
Background technique
The Chinese invention patent of Patent No. 201520672450.5 discloses a kind of manual craniotomy drill external member of experiment, on
The manual craniotomy drill external member stated is made due to the presence of pilot pin when opening cranium, and manual craniotomy drill external member will not skid with respect to skull
And energy one man operation, but when drilling skull just, pilot pin may be pierced to encephalic, destroy internal brain tissue.
Summary of the invention
The technical problems to be solved by the present invention are: in view of the deficienciess of the prior art, a kind of simple, the energy that provides structure
It is enough easily to be punched on skull, and bored skull block is taken out, avoid too deep pierce inside skull.
Purpose to realize the present invention, is achieved using following technical scheme: a kind of manual craniotomy drill of experiment, including
There is positioning seat, the drilling pipe being plugged in the positioning seat is threaded in the adjusting nut part of the drilling pipe outer wall, is slidably connected
Fixed pin in the drilling pipe, be slidably connected at the fixed pin top tightens handle and cam pack；The positioning
Circular through hole is offered on seat；The positioning seat lower end is formed along circumferentially equally distributed four pilot pins of the through-hole；
The drilling pipe includes cylindrical drilling pipe portion, is molded over piercing distance adjustment and being molded over described for drilling pipe portion upper end
The knob of drilling pipe portion upper end；The drilling pipe subordinate end forms brill tooth；It is described pierce distance adjustment side wall upper part at
Type has external screw thread；The adjusting nut part includes the nut being threadedly coupled with the external screw thread；The nut inner wall at
Type has internal screw thread.
The fixed pin includes taper bit and shank；The shank upper portion side wall offers bar shaped sliding groove；Institute
The shank stated forms cam connecting plate in upper end；The cam connecting plate offers cam connecting hole；It is covered on the shank
It is connected to spring；The spring tightens handle lower end described in being fixedly connected on；Among the knob upper end offer with it is described
First perforation of shank cooperation；It is described to tighten the second perforation offered among handle with fixed pin top cooperation；It is described
Second perforation inner wall forms the slider bar with the cooperation of the sliding groove of shank；The cam pack includes handle and is molded over
The cam of described handle one end；The cam pack is rotatably connected in the cam connecting hole of the fixed pin by bolt；Institute
It states close minor axis of cam on handle and screwing handle end face forms protrusion relatively；Described tighten forms and handle on handle
Male cooperation location hole；The positioning seat, drilling pipe, adjusting nut part, fixed pin tighten handle and cam pack point
It Cai Yong not stainless steel integrated molding.
As a preferred solution: there are two symmetrical handle portions for the positioning seat outer wall molding.
As a preferred solution: the distance adjustment lower sidewall that pierces offers multiple card slots；The card slot edge
Pierce the circumferentially equidistant from distribution of distance adjustment；The nut lower end forms the clamping being plugged in the through-hole of positioning seat
Circle, the clamp ring inside are connected with the elastic chuck with card slot cooperation, and the card slot is secured with elastic chuck
Position of the adjusting nut part with respect to drilling pipe.
As a preferred solution: upper end offers the recess with handle cooperation among the knob, avoid turning
Drilling pipe is driven to rotate together when dynamic handle.
Compared with prior art, the beneficial effects of the present invention are: before use, first according to the actual situation, by adjusting nut
Part is threaded in the suitable position for piercing distance adjustment outer wall, and positioning seat is then fixed on skull position to be punctured, will
Drilling pipe after adjusting is plugged in the through-hole of location hole, and spring is socketed on the outside of fixed pin, and handle is tightened in fixed pin insertion
In the second intermediate perforation, cam pack is rotatably connected on fixed pin top by bolt, by mounted fixed pin grafting
In the perforation of drilling pipe；Cam pack is rotated to making protrusion be embedded in positioning hole, with the handle for pinching location hole on the other hand when use
Hand is rotated down the handle of cam pack on the other hand, and taper bit is made to enter skull appropriate depth, at this time rotates raised component
180°；With the handle portion for pinching positioning seat on the other hand, knob is rotated on the other hand, due to spring contraction, will be bored tooth and is pushed against on skull,
When rotating knob, bore tooth and moved down while rotating with drilling pipe, when adjusting nut part outer wall protrusion with
When positioning seat offsets, it is meant that skull is drilled open just, since taper bit is fixed on the skull block after being drilled, so only needing
Raised component is turned to perpendicular to handle end face is tightened, at this time since spring extends, by the skull block on taper bit, position
To be removed inside drilling pipe.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
Fig. 2 is decomposition texture schematic diagram of the invention.
Fig. 3 is schematic cross-sectional view of the invention.
Fig. 4 is drilling pipe structural schematic diagram of the invention.
Fig. 5 is adjusting nut part structural schematic diagram of the invention.
Fig. 6 is fixed pin schematic cross-sectional view of the invention.
Fig. 7 is of the invention to tighten grip structure schematic diagram.
Fig. 8 is cam structure schematic diagram of the invention.
1, positioning seat；11, pilot pin；12, through-hole；2, drilling pipe；20, tooth is bored；21, drilling pipe portion；22, distance is pierced to adjust
Portion；221, card slot；222, external screw thread；23, knob；231, recess；232, the first perforation；3, adjusting nut part；31, clamping
Circle；311, elastic chuck；32, nut；321, internal screw thread；4, fixed pin；41, taper bit；42, shank；421, sliding groove；
43, cam connecting plate；431, cam connecting hole；5, handle is tightened；51, the second perforation；511, slider bar；52, location hole；6, convex
Wheel assembly；61, cam；62, handle；621, raised；7, spring.
Specific embodiment
A specific embodiment of the invention is made a detailed explanation below according to attached drawing.
According to Fig. 1 to Fig. 8, the manual craniotomy drill of a kind of experiment described in the present embodiment, includes positioning seat 1, is inserted
The drilling pipe 2 in the positioning seat is connect, the adjusting nut part 3 of the drilling pipe outer wall is threaded in, is slidably connected at the brill
Fixed pin 4 in cylinder, be slidably connected at the fixed pin top tightens handle 5 and cam pack 6；It is opened on the positioning seat
Equipped with circular through hole 12；The positioning seat lower end is formed along circumferentially equally distributed four pilot pins 11 of the through-hole；Institute
Stating drilling pipe includes cylindrical drilling pipe portion 21, is molded over piercing distance adjustment 22 and being molded over institute for drilling pipe portion upper end
State the knob 23 of drilling pipe portion upper end；The drilling pipe subordinate end, which forms, bores tooth 20；Described pierces distance adjustment side wall
Top forms external screw thread 222；The adjusting nut part includes the nut 32 being threadedly coupled with the external screw thread；Described
Nut inner wall forms internal screw thread 321；The fixed pin includes taper bit 41 and shank 42；The shank upper portion side wall
Offer bar shaped sliding groove 421；The shank forms cam connecting plate 43 in upper end；The cam connecting plate offers
Cam connecting hole 431；Spring 7 is socketed on the shank；The spring tightens handle lower end described in being fixedly connected on；Described
Upper end offers the first perforation 232 with shank cooperation among knob；It is described tighten offered among handle with it is described
Second perforation 51 of fixed pin top cooperation；The second perforation inner wall forms the slider bar with the cooperation of the sliding groove of shank
511；The cam pack includes handle 62 and the cam 61 for being molded over described handle one end；The cam pack passes through spiral shell
Bolt is rotatably connected in the cam connecting hole of the fixed pin；Close to minor axis of cam and the opposite handle end face that screws on the handle
Form protrusion 621；Described tightens the location hole 52 formed on handle with the male cooperation of handle；The positioning seat,
Drilling pipe, adjusting nut part, fixed pin, tightens handle and stainless steel integrated molding is respectively adopted in cam pack；The positioning
There are two symmetrical handle portions 11 for the molding of seat outer wall；The distance adjustment lower sidewall that pierces offers multiple card slots 221；
The card slot edge pierces the circumferentially equidistant from distribution of distance adjustment；The nut lower end, which forms, is plugged on the logical of positioning seat
Clamp ring 31 in hole, the clamp ring inside are connected with the elastic chuck 311 with card slot cooperation；The clamp ring
Inner wall relative resilient clamp position forms the cavity for accommodating elastic chuck；The elastic chuck is located at the part in cavity for hair
Foamed material, elastic chuck outer end are rigid plastics.The card slot and elastic chuck secure the opposite drilling pipe of adjusting nut part
Position；Upper end offers the recess 231 with handle cooperation among the knob, avoids driving in swing handle and bore
Cylinder rotates together.
Before use, first according to the actual situation, adjusting nut part being threaded in and pierces the suitable of distance adjustment outer wall
Then positioning seat is fixed on skull position to be punctured, the drilling pipe after adjusting is plugged in the through-hole of location hole, by bullet by position
Spring is socketed on the outside of fixed pin, and fixed pin insertion is tightened in the second perforation among handle, and cam pack is turned by bolt
It is dynamic to be connected to fixed pin top, mounted fixed pin is plugged in the perforation of drilling pipe；When use by cam pack rotate to
Protrusion is set to be rotated down the handle of cam pack on the other hand with the handle portion for pinching location hole on the other hand embedded in positioning hole, be made taper
Drill bit enters skull appropriate depth, and raised component is rotated 180 ° at this time；With the handle portion for pinching positioning seat on the other hand, rotate on the other hand
Knob will be bored tooth and be pushed against on skull due to spring contraction, when rotating knob, bore tooth as drilling pipe is revolved on one side
Turning to move down on one side, when the protrusion of adjusting nut part outer wall offsets with positioning seat, it is meant that skull is drilled open just, due to
Taper bit is fixed on the skull block after being drilled, so raised component need to only be turned to perpendicular to tightening handle end face, this
When extended due to spring, the skull block on taper bit is removed inside drilling pipe.
Claims (1)
1. a kind of manual craniotomy drill of experiment, it is characterised in that: it include positioning seat, the drilling pipe being plugged in the positioning seat,
It is threaded in the adjusting nut part of the drilling pipe outer wall, the fixed pin being slidably connected in the drilling pipe is slidably connected at institute
That states fixed pin top tightens handle and cam pack；
Circular through hole is offered on the positioning seat；The positioning seat lower end forms circumferentially equally distributed along the through-hole
Four pilot pins；
The drilling pipe includes cylindrical drilling pipe portion, is molded over piercing distance adjustment and being molded over for drilling pipe portion upper end
The knob of drilling pipe portion upper end；The drilling pipe subordinate end forms brill tooth；Described pierces on distance adjustment side wall
Portion forms external screw thread；
The adjusting nut part includes the nut being threadedly coupled with the external screw thread；The nut inner wall forms interior spiral shell
Line；
The fixed pin includes taper bit and shank；The shank upper portion side wall offers bar shaped sliding groove；Described
Shank forms cam connecting plate in upper end；The cam connecting plate offers cam connecting hole；It is socketed on the shank
Spring；The spring tightens handle lower end described in being fixedly connected on；
Upper end offers the first perforation with shank cooperation among the knob；
It is described to tighten the second perforation offered among handle with fixed pin top cooperation；The second perforation inner wall molding
There is the slider bar with the cooperation of the sliding groove of shank；The cam pack includes handle and is molded over the convex of described handle one end
Wheel；The cam pack is rotatably connected in the cam connecting hole of the fixed pin by bolt；Close to cam on the handle
It short axle and opposite screw handle end face and forms protrusion；
Described tightens the location hole formed on handle with the male cooperation of handle；
The positioning seat, drilling pipe, adjusting nut part, fixed pin, tightens handle and stainless steel one is respectively adopted in cam pack
It is body formed；
The distance adjustment lower sidewall that pierces offers multiple card slots；The card slot is along the week for piercing distance adjustment
To equidistantly distributing；The nut lower end forms the clamp ring being plugged in the through-hole of positioning seat, connects on the inside of the clamp ring
It is connected to the elastic chuck with card slot cooperation；
The clamp ring inner wall relative resilient clamp position forms the cavity for accommodating elastic chuck；
It is foamed plastic that the elastic chuck, which is located at the part in cavity, and elastic chuck outer end is rigid plastics；
There are two symmetrical handle portions for the positioning seat outer wall molding；
Upper end offers the recess with handle cooperation among the knob.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711167971.5A CN107714139B (en) | 2016-05-18 | 2016-05-18 | Test manual craniotomy drill |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711167971.5A CN107714139B (en) | 2016-05-18 | 2016-05-18 | Test manual craniotomy drill |
| CN201610332499.5A CN105852928B (en) | 2016-05-18 | 2016-05-18 | The manual craniotomy drill of one kind experiment |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610332499.5A Division CN105852928B (en) | 2016-05-18 | 2016-05-18 | The manual craniotomy drill of one kind experiment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107714139A CN107714139A (en) | 2018-02-23 |
| CN107714139B true CN107714139B (en) | 2019-07-16 |
Family
ID=56635324
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711168230.9A Expired - Fee Related CN107951533B (en) | 2016-05-18 | 2016-05-18 | Test manual craniotomy drill |
| CN201711167971.5A Active CN107714139B (en) | 2016-05-18 | 2016-05-18 | Test manual craniotomy drill |
| CN201610332499.5A Expired - Fee Related CN105852928B (en) | 2016-05-18 | 2016-05-18 | The manual craniotomy drill of one kind experiment |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711168230.9A Expired - Fee Related CN107951533B (en) | 2016-05-18 | 2016-05-18 | Test manual craniotomy drill |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610332499.5A Expired - Fee Related CN105852928B (en) | 2016-05-18 | 2016-05-18 | The manual craniotomy drill of one kind experiment |
Country Status (1)
| Country | Link |
|---|---|
| CN (3) | CN107951533B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110711043A (en) * | 2019-10-26 | 2020-01-21 | 西藏自治区农牧科学院畜牧兽医研究所 | Animal minimally invasive craniotomy electric drill |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5207681A (en) * | 1987-10-26 | 1993-05-04 | Neurodynamics, Inc. | Drill guide apparatus for perpendicular perforation of the cranium |
| RU2020887C1 (en) * | 1991-03-04 | 1994-10-15 | Научно-исследовательский центр Татарстана "Восстановительная травматология и ортопедия" | Device for extracting osteal transplants |
| US5993453A (en) * | 1997-10-15 | 1999-11-30 | Huntington Medical Research Institutes | Controlled-depth bone cutter |
| CN2664603Y (en) * | 2003-09-03 | 2004-12-22 | 重庆西南医院 | Skull cutting trepan not leaving behind bony defect |
| CN2676840Y (en) * | 2004-01-15 | 2005-02-09 | 米宽庆 | Regulatable manual craniotome ring saw |
| CN201441418U (en) * | 2009-03-05 | 2010-04-28 | 战祥青 | Novel cranial drill |
| CN201710409U (en) * | 2010-06-24 | 2011-01-19 | 王兵 | Craniotome drill |
| CN201775653U (en) * | 2010-09-03 | 2011-03-30 | 威海鸿宇医疗器械有限公司 | Orienting electric skull drill |
| CN204890099U (en) * | 2015-09-01 | 2015-12-23 | 浙江中医药大学 | Manually -operated on cranium drill bushing spare |
| WO2016006983A1 (en) * | 2014-07-11 | 2016-01-14 | 주식회사 고영테크놀러지 | Medical drill device |
| WO2016059608A1 (en) * | 2014-10-16 | 2016-04-21 | Promev S.R.L. | Cranial drilling device |
| CN205672053U (en) * | 2016-04-21 | 2016-11-09 | 贾新奎 | One takes bone drill bit |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3405379C1 (en) * | 1984-02-15 | 1985-12-19 | Aesculap-Werke Ag Vormals Jetter & Scheerer, 7200 Tuttlingen | Skull trephine |
| CN205697921U (en) * | 2016-05-18 | 2016-11-23 | 黄文佳 | Manual drill for craniotomy is used in a kind of experiment |
-
2016
- 2016-05-18 CN CN201711168230.9A patent/CN107951533B/en not_active Expired - Fee Related
- 2016-05-18 CN CN201711167971.5A patent/CN107714139B/en active Active
- 2016-05-18 CN CN201610332499.5A patent/CN105852928B/en not_active Expired - Fee Related
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5207681A (en) * | 1987-10-26 | 1993-05-04 | Neurodynamics, Inc. | Drill guide apparatus for perpendicular perforation of the cranium |
| RU2020887C1 (en) * | 1991-03-04 | 1994-10-15 | Научно-исследовательский центр Татарстана "Восстановительная травматология и ортопедия" | Device for extracting osteal transplants |
| US5993453A (en) * | 1997-10-15 | 1999-11-30 | Huntington Medical Research Institutes | Controlled-depth bone cutter |
| CN2664603Y (en) * | 2003-09-03 | 2004-12-22 | 重庆西南医院 | Skull cutting trepan not leaving behind bony defect |
| CN2676840Y (en) * | 2004-01-15 | 2005-02-09 | 米宽庆 | Regulatable manual craniotome ring saw |
| CN201441418U (en) * | 2009-03-05 | 2010-04-28 | 战祥青 | Novel cranial drill |
| CN201710409U (en) * | 2010-06-24 | 2011-01-19 | 王兵 | Craniotome drill |
| CN201775653U (en) * | 2010-09-03 | 2011-03-30 | 威海鸿宇医疗器械有限公司 | Orienting electric skull drill |
| WO2016006983A1 (en) * | 2014-07-11 | 2016-01-14 | 주식회사 고영테크놀러지 | Medical drill device |
| WO2016059608A1 (en) * | 2014-10-16 | 2016-04-21 | Promev S.R.L. | Cranial drilling device |
| CN204890099U (en) * | 2015-09-01 | 2015-12-23 | 浙江中医药大学 | Manually -operated on cranium drill bushing spare |
| CN205672053U (en) * | 2016-04-21 | 2016-11-09 | 贾新奎 | One takes bone drill bit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105852928A (en) | 2016-08-17 |
| CN107714139A (en) | 2018-02-23 |
| CN107951533A (en) | 2018-04-24 |
| CN107951533B (en) | 2019-06-28 |
| CN105852928B (en) | 2018-03-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Qiu Xiaozhong Inventor after: Shi Ling Inventor after: Wang Juan Inventor after: Huang Wenjia Inventor before: Huang Wenjia |
|
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