CN203970481U - Disposable use skull drill bit - Google Patents
Disposable use skull drill bit Download PDFInfo
- Publication number
- CN203970481U CN203970481U CN201420287134.1U CN201420287134U CN203970481U CN 203970481 U CN203970481 U CN 203970481U CN 201420287134 U CN201420287134 U CN 201420287134U CN 203970481 U CN203970481 U CN 203970481U
- Authority
- CN
- China
- Prior art keywords
- drill bit
- interior
- shell body
- outer drill
- disposable use
- 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.)
- Expired - Lifetime
Links
- 210000003625 skull Anatomy 0.000 title claims abstract description 29
- 238000005520 cutting process Methods 0.000 claims abstract description 6
- 230000013011 mating Effects 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 13
- 238000001356 surgical procedure Methods 0.000 abstract description 7
- 230000006378 damage Effects 0.000 description 7
- 210000000988 bone and bone Anatomy 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000005553 drilling Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 238000007917 intracranial administration Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 206010019196 Head injury Diseases 0.000 description 1
- 241000282412 Homo Species 0.000 description 1
- 206010022773 Intracranial pressure increased Diseases 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 208000030886 Traumatic Brain injury Diseases 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 244000052616 bacterial pathogen Species 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003925 brain function Effects 0.000 description 1
- 230000002490 cerebral effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 210000001951 dura mater Anatomy 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 201000009941 intracranial hypertension Diseases 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
Landscapes
- Surgical Instruments (AREA)
Abstract
This utility model provides a kind of disposable use skull drill bit, comprise: the interior drill bit of shell body, the outer drill bit of shell body inside, outer drill bit internal, provide the power source of rotary power for described outer drill bit and interior drill bit, the rotary power of described power source is passed to the clutch of described outer drill bit and interior drill bit, on described inside and outside drill bit, be respectively equipped with cutting edge and corresponding chip area, described shell body and described outer drill bit are unremovably connected to one.This disposable use skull drill bit is realized the effect that drills automatic stop and reach safeguard protection, only avoided in the past by operator by rule of thumb and feel judgement shut down and the even seriousness accident surgery of risk of makeing mistakes that causes; And shell body and outer drill bit achieve a fixed connection, and prevent effective dismounting, realize disposable use.
Description
Technical field
This utility model belongs to the cutter field in surgical operation power set, particularly relates to a kind of disposable self-stop skull drill head that drills.
Background technology
Power, control and the operating apparatus that can provide operation required are provided surgery power system, alleviate working doctor intensity, realize the surgery device of accurate operation technique.From broad sense, it comprises and adopts machinery, sound, the various energy mode such as the optical, electrical surgical apparatus as power.In the narrow sense, it refers to that power source provides mechanical kinetic energy, and the kinetic force of output is controlled, and drives operating theater instruments to perform the operation.The good surgery power system of combination property can be realized the functions such as the required brill of operation, milling, mill, saw, auxiliary doctor is efficient, safety, complete surgical operation quickly and accurately, shortens to greatest extent operating time, alleviates patient's misery, promotes postoperative recovery from illness.The diseases such as intracranial hypertension, craniocerebral injury, intracranial tumor, cerebrovascular, intracranial infection are one of killers of harm humans life and health always for a long time, neurosurgery is the important means of curing this type of disease, in operation, primary principle is to save nervous tissue from damage, reduce secondary damage and infect, and operation power device is being brought into play pivotal role in neurosurgery.
Existing hand cranial drill is in the moment that drills skull, cannot autostop, only by operator by rule of thumb and feel judgement shut down; the risk of makeing mistakes is high; drill bit often damages cerebral dura mater, is even deep into brain function maincenter district, the seriousness accident surgery that the rate that causes death is very high.
And medical instruments are much attributed to disposable use category; such as syringe, disposable surgical cutter, blade etc. have physics harm; the problem of physics harm does not lie in the harm that they cause itself, but has invaded the protective barrier of human body, thereby makes all kinds of pathogenic bacterias enter human body.Existing skull drill bit complex structure, installing/dismounting process complexity, manufacturing cost is high.
For this reason, provide a kind of disposable use, prevent that the skull drill bit of dismounting from being those skilled in the art's technical problems urgently to be resolved hurrily.
Utility model content
The shortcoming of prior art in view of the above, the purpose of this utility model is to provide a kind of disposable use skull drill bit, be used for solving prior art in the time using disposable skull drill bit, prevent from drilling the problem that the skull drill bit of automatic stop is disassembled, it cannot be cleaned and reach the object that cannot realize use repeatly.
For achieving the above object and other relevant objects, this utility model provides a kind of disposable use skull drill bit, comprise: the interior drill bit of shell body, the outer drill bit of shell body inside, outer drill bit internal, provide the power source of rotary power for described outer drill bit and interior drill bit, the rotary power of described power source is passed to the clutch of described outer drill bit and interior drill bit, on described inside and outside drill bit, be respectively equipped with cutting edge and corresponding chip area, described shell body and described outer drill bit are unremovably connected to one.
Preferably, described shell body inwall and described outer drill bit periphery interference fit.
Preferably, described shell body and described outer drill bit are fixed together by welding.
Preferably, described shell body and described outer drill bit are by together with being adhesively fixed.
Preferably, described clutch comprise the described outer drill bit of drive connecting with described power source that extends to described shell body outside by described shell body inside and described interior bit joint pin, be arranged on spring between described joint pin and described interior drill bit and cross-under in described interior drill bit be subject to External Force Acting time move to the cotter pilotage snapping in described joint pin together with described interior drill bit.
Preferably, described interior drill bit is provided with the cotter pilotage groove coordinating with described cotter pilotage, and the week of described outer drill bit is upwards provided with cotter hole, and described cotter pilotage cross-under is connected in the cotter hole of described outer drill bit after in described cotter pilotage groove.
Preferably, shown in drill bit comprise large end, be positioned at middle part and waist and the small end of diameter maximum, described waist be provided with perpendicular to described interior drill bit shaft to the cotter pilotage groove coordinating with described cotter pilotage.
Preferably, shown in joint pin comprise the cotter pilotage engaging groove of waist, bottom and cotter pilotage engagement that power handle linkage section, the mid diameter of upper end is larger, described joint pin bottom is provided with the shoulder hole extending vertically, described shoulder hole comprises the spring eye near the mating holes coordinating with the large end of described interior drill bit of bottom and mating holes top, the internal diameter of described spring eye is greater than the external diameter of described spring, and the total depth of described shoulder hole is less than the length of described spring.
Preferably, described outer drill bit is the tubbiness that comprises large end and small end, thereby being upwards provided with in large end week for described cotter pilotage clamping of described outer drill bit drives the cotter hole of described outer bit, described outer drill bit internal has a shoulder hole, described shoulder hole coordinates with the waist of described interior drill bit near the aperture of large end, coordinates near the aperture of small end and the small end of described interior drill bit.
Preferably, described interior drill bit is realized spacing by the step surface of its waist and the step surface of described outer drill bit endoporus, and described joint pin is realized axial limiting by step surface and the large end end face of described outer drill bit of waist.
As mentioned above, disposable use skull drill bit of the present utility model, there is following beneficial effect: when this utility model work, joint pin connects power handle, power handle provides rotary power, joint pin drives inside and outside drill bit, realize body bone tissue (skull) is holed by the high speed rotary motion of inside and outside drill bit, in the time drilling, skull drill bit relies on the inside and outside drill bit of effect realization of clutch automatically to stop, realization drills automatic stop and reaches the effect of safeguard protection, only avoided in the past by operator by rule of thumb and feel judgement shut down and the even seriousness accident surgery of risk of makeing mistakes that causes.And shell body is realized being fixedly connected with of non-dismountable formula with outer drill bit, prevents effective dismounting, realizes disposable use, reduces manufacturing cost simultaneously.
Brief description of the drawings
Fig. 1 is shown as this utility model entirety assembling schematic diagram.
Fig. 2 is shown as joint pin front elevational schematic.
Fig. 3 is shown as joint pin schematic perspective view.
Fig. 4 is shown as cotter pilotage part schematic diagram.
Fig. 5 is shown as outer drill bit part schematic diagram.
Fig. 6 is shown as interior drill bit part schematic diagram.
Fig. 7 is shown as interior drill bit and cotter pilotage assembling schematic diagram.
Piece mark explanation
1 joint pin
11 power handle linkage sections
12 cotter pilotage engaging grooves
2 shell bodies
3 springs
4 cotter pilotages
5 outer drill bits
51 cotter holes
6 interior drill bits
61 cotter pilotage grooves
Detailed description of the invention
By specific concrete utility model, embodiment of the present utility model is described below, person skilled in the art scholar can understand other advantages of the present utility model and effect easily by the disclosed content of this description.
Incorporated by reference to shown in Fig. 1 to Fig. 7, this utility model provides a kind of disposable use skull drill bit, comprise the interior drill bit 6 of shell body 2, the outer drill bit 5 of shell body 2 inside, outer drill bit 5 inside, provide the power source of rotary power for described outer drill bit 5 and interior drill bit 6, the rotary power of described power source is passed to the clutch of described outer drill bit 5 and interior drill bit 6, on described inside and outside drill bit 5, is respectively equipped with cutting edge and corresponding chip area.Described shell body 2 is non-removable being fixedly connected with described outer drill bit 5; Particularly, described shell body 2 inwalls are by reaching with the large end periphery of described outer drill bit 5 interference fit the effect being fixedly connected with; Or described shell body 2 and described outer drill bit 5 are by being welded and fixed; Or described shell body 2 and described outer drill bit 5 are by being adhesively fixed; Can realize shell body 2 relative fixing with outer drill bit 5, can effectively prevent dismounting, prevent that being repeated property from being used, meanwhile, manufacturing cost is lower.
This utility model medium power source is power handle.Thereby clutch rotates for the rotary power of power handle being passed to described outer drill bit 5 and the interior drill bit 6 outer drill bits 5 of drive and interior drill bit 6.
Described clutch comprises by shell body 2 inside and extends to the described outer drill bit 5 of the drive being connected with power handle of shell body 2 outsides and the joint pin 1 that interior drill bit 6 rotates, be arranged on spring 3 between joint pin 1 and interior drill bit 6 and cross-under in described interior drill bit 6 be subject to External Force Acting time move to the cotter pilotage 4 snapping in described joint pin 1 together with described interior drill bit 6.In clutch makes, outer drill bit departs from or engages with joint pin 1, the effect of clutch be make in working order time joint pin 1 with in, thereby in outer drill bit engagement is passed to rotary power, in thereby outer drill bit drives, outer bit, in the time that boring drills, due to, interior drill bit 6 cutting resistances (axially) reduce greatly, be compressed the effect of spring 3 outside elastic force, in inserting, the cotter pilotage 4 of drill bit 6 and outer drill bit 5 departs from the cotter pilotage engaging groove 12 of joint pin 1, thereby, thereby clutch makes interior drill bit 6 and 5 moments of outer drill bit depart from joint pin 1 and loses rotary power, thereby interior drill bit 6 and outer drill bit 5 are stopped operating.
Described shell body 2 has endoporus, and its diameter of bore is slightly less than the large end outside diameter of outer drill bit 5, so that the large end cylindrical of shell body 2 inner hole walls and outer drill bit 5 is realized interference fit.
Described interior drill bit 6 is provided with the cotter pilotage groove 61 coordinating with described cotter pilotage 4, described cotter pilotage 4 and the fit system of interior drill bit 6 can adopt the fastening means such as interference fit, welding, glue be bonding, make cotter pilotage 4 freely movable in the cotter hole 51 of interior drill bit 6, spacing to it by shell body 2 inner circles, make it within range of activity, can effectively ensure the laminating of cotter pilotage 4 and cotter pilotage engaging groove 12, cotter pilotage 4 and cotter hole 51.The week of described outer drill bit 5 is upwards provided with cotter hole 51, described cotter pilotage 4 cross-under are connected in the cotter hole 51 of described outer drill bit 5 after in described cotter pilotage groove 61, particularly, described cotter pilotage 4 can drive interior drill bit 6 outside the axial direction of drill bit 5 cotter holes 51 do axial displacement; Described week two cotter holes 51 be upwards 180 degree arrays arrange, not symmetrical, because the two ends of cotter pilotage 4 are not cylindric, but irregular shape (as shown in Figure 4), therefore the shape Rotate 180 degree of a cotter hole 51 obtains another cotter hole 51.As shown in Figure 7, the shape and size of cotter pilotage groove 61 coordinate with cotter pilotage 4, thereby make cotter pilotage 4 can drive interior drill bit 6 to rotate.The place that cotter pilotage 4 coordinates with cotter pilotage groove 61 is for facing directly so that cotter pilotage 4 blocks, and it is arc surface so that cotter pilotage 4 comes off that cotter pilotage 4 drives the cotter pilotage face of cotter hole 51.
On described outer drill bit 5 and interior drill bit 6, be all respectively equipped with two cutting edges and chip area corresponding to difference, described chip area comprises that two angles are greater than facing directly of 90 degree.Existing chip area has curling, and the mode of the chip area of facing directly adopting in this utility model and direct chip discharging will be conducive to chip removal.
Shown in drill bit 6 comprise waist and the small end of the centre of large end, diameter maximum, described waist is provided with the cotter pilotage groove 61 that with described cotter pilotage coordinate axial perpendicular to interior drill bit 6.
Shown in the joint pin 1 cotter pilotage engaging groove 12 engaging with cotter pilotage 4 that comprises waist that power handle linkage section 11, the mid diameter of upper end is larger, bottom, described joint pin 1 bottom is provided with the shoulder hole extending vertically, described shoulder hole comprises near the mating holes coordinating with the large end of interior drill bit 6 of bottom and the spring eye of mating holes top, the internal diameter of described spring eye is greater than the external diameter of spring 3, the total depth of described shoulder hole is less than the former length of spring 3, so that spring 3 produces resilience force by compression.
Shown in outer drill bit 5 be the tubbiness that comprises large end and small end, thereby be upwards provided with the cotter hole 51 that drives outer drill bit 5 to rotate for cotter pilotage 4 clampings the week of described large end, the bottom of described outer drill bit 5 large ends is provided with the groove that extends to vertically described cotter hole 51 penetrating for cotter pilotage 4, there is a shoulder hole described outer drill bit 5 inside, described shoulder hole coordinates with the waist of interior drill bit 6 near the aperture of large end, coordinates with the small end of interior drill bit 6 near the aperture of small end.
Described interior drill bit 6 is realized spacing by the step surface of waist and the step surface of outer drill bit 5 endoporus, described joint pin 1 is realized axial limiting by step surface and the large end end face of outer drill bit 5 of waist.
When installation, first interior drill bit 6 is inserted in outer drill bit 5, make the hole alignment of interior drill bit 6 and the waist of outer drill bit 5 consistent; Again cotter pilotage 4 is inserted to the cotter hole 51 of outer drill bit 5 and the cotter pilotage groove 61 of interior drill bit 6 successively; Spring 3 is placed in the spring eye of joint pin 1; Again the joint pin 1 that is equipped with spring 3 is inserted in the hole of outer drill bit 5 large end one sides that is equipped with interior drill bit 6, rely on the step surface of joint pin 1 waist to hold greatly end face to be close to outer drill bit 5 and carry out axial limiting, shell body 2 is inserted to joint pin 1, fix by the interference fit of shell body 2 inwalls and the large end cylindrical of outer drill bit 5 again, make its fully fastening outer drill bit 5, reach non-removable effect.
This utility model duty: joint pin 1 connects power handle, power is by extremely inside and outside drill bit of joint pin 1 transferring power, while boring in work, because boring resistance exists, when resistance is greater than spring 3 elastic force, interior drill bit 6 assemblies move upward, cotter pilotage 4 Snap joint post 1 cotter pilotage engaging grooves 12 are when interior, the cotter pilotage 4 that relies on joint pin 1 to snap in its engaging groove by drive drives interior drill bit 6 to bore moving, interior drill bit 6 drives outer drill bit 5 to rotate together by cotter pilotage 4, realize inside and outside drill bit one trip-out moving, reach the object of boring.While drilling; interior drill bit 6 ejects joint pin 1 cotter pilotage engaging groove 12 because spring 3 elastic force effects make cotter pilotage 4; joint pin 1 can not effectively drive cotter pilotage 4 to rotate; therefore interior drill bit 6 stops operating; outer drill bit 5 also will stop operating, and interior drill bit 6 profiles have a difference in height, and in the time of boring, this difference in height will form boring and form one " bone pad "; make outer drill bit 5 can not continue to insert in osseous tissue, reach the object that prevents inside and outside drill bit " insertion " osseous tissue of skull drill bit inside after the drilling of protection.Owing to being fixedly connected with between shell body 2 and outer drill bit 5, can not effectively dismantle, prevent from reusing.
In sum; when this utility model work; joint pin connects power handle; power handle provides rotary power; joint pin drives inside and outside drill bit; realize body bone tissue (skull) is holed by the high speed rotary motion of inside and outside drill bit; in the time drilling, skull drill bit relies on the inside and outside drill bit of effect realization of clutch automatically to stop; realization drills automatic stop and reaches the effect of safeguard protection, only avoided in the past by operator by rule of thumb and feel judgement shut down and the even seriousness accident surgery of risk of makeing mistakes that causes.And shell body and outer drill bit achieve a fixed connection, and prevent effective dismounting, realize disposable use.
Above-mentioned utility model is illustrative principle of the present utility model and effect thereof only, but not for limiting this utility model.Any person skilled in the art scholar all can, under spirit of the present utility model and category, modify or change above-mentioned utility model.Therefore, have in technical field under such as and conventionally know that the knowledgeable modifies or changes not departing from all equivalences that complete under spirit that this utility model discloses and technological thought, must be contained by claim of the present utility model.
Claims (10)
1. a disposable use skull drill bit, comprise: the interior drill bit of shell body, the outer drill bit of shell body inside, outer drill bit internal, provide the power source of rotary power for described outer drill bit and interior drill bit, the rotary power of described power source is passed to the clutch of described outer drill bit and interior drill bit, on described inside and outside drill bit, be respectively equipped with cutting edge and corresponding chip area, it is characterized in that, described shell body and described outer drill bit are unremovably connected to one.
2. disposable use skull drill bit according to claim 1, is characterized in that: described shell body inwall and described outer drill bit periphery interference fit.
3. disposable use skull drill bit according to claim 1, is characterized in that: described shell body and described outer drill bit are fixed together by welding.
4. disposable use skull drill bit according to claim 1, is characterized in that: described shell body and described outer drill bit are by together with being adhesively fixed.
5. according to the disposable use skull drill bit described in claim 2 to 4 any one, it is characterized in that: described clutch comprise the described outer drill bit of drive connecting with described power source that extends to described shell body outside by described shell body inside and described interior bit joint pin, be arranged on spring between described joint pin and described interior drill bit and cross-under in described interior drill bit be subject to External Force Acting time move to the cotter pilotage snapping in described joint pin together with described interior drill bit.
6. disposable use skull drill bit according to claim 5, it is characterized in that: described interior drill bit is provided with the cotter pilotage groove coordinating with described cotter pilotage, the week of described outer drill bit is upwards provided with cotter hole, and described cotter pilotage cross-under is connected in the cotter hole of described outer drill bit after in described cotter pilotage groove.
7. disposable use skull drill bit according to claim 6, it is characterized in that: shown in drill bit comprise large end, be positioned at middle part and waist and the small end of diameter maximum, described waist be provided with perpendicular to described interior drill bit shaft to the cotter pilotage groove coordinating with described cotter pilotage.
8. disposable use skull drill bit according to claim 7, it is characterized in that: shown in joint pin comprise the cotter pilotage engaging groove of waist, bottom and cotter pilotage engagement that power handle linkage section, the mid diameter of upper end is larger, described joint pin bottom is provided with the shoulder hole extending vertically, described shoulder hole comprises the spring eye near the mating holes coordinating with the large end of described interior drill bit of bottom and mating holes top, the internal diameter of described spring eye is greater than the external diameter of described spring, and the total depth of described shoulder hole is less than the length of described spring.
9. disposable use skull drill bit according to claim 8, it is characterized in that: described outer drill bit is the tubbiness that comprises large end and small end, thereby being upwards provided with in large end week for described cotter pilotage clamping of described outer drill bit drives the cotter hole of described outer bit, described outer drill bit internal has a shoulder hole, described shoulder hole coordinates with the waist of described interior drill bit near the aperture of large end, coordinates near the aperture of small end and the small end of described interior drill bit.
10. disposable use skull drill bit according to claim 9, it is characterized in that: described interior drill bit is realized spacing by the step surface of its waist and the step surface of described outer drill bit endoporus, described joint pin is realized axial limiting by step surface and the large end end face of described outer drill bit of waist.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420287134.1U CN203970481U (en) | 2014-05-30 | 2014-05-30 | Disposable use skull drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420287134.1U CN203970481U (en) | 2014-05-30 | 2014-05-30 | Disposable use skull drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203970481U true CN203970481U (en) | 2014-12-03 |
Family
ID=51967956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420287134.1U Expired - Lifetime CN203970481U (en) | 2014-05-30 | 2014-05-30 | Disposable use skull drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203970481U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106725720A (en) * | 2017-03-03 | 2017-05-31 | 周晓光 | One kind bores bone device |
| CN106725653A (en) * | 2017-03-03 | 2017-05-31 | 周晓光 | A kind of minimally invasive bone-operating device |
| CN107811671A (en) * | 2016-05-18 | 2018-03-20 | 黄文佳 | A kind of manual craniotomy drill |
| CN110279333A (en) * | 2019-07-19 | 2019-09-27 | 慈溪赛嘉电子有限公司 | Disposable work head and electric tool |
| CN112533549A (en) * | 2018-08-17 | 2021-03-19 | Emd公司 | Disposable perforator |
-
2014
- 2014-05-30 CN CN201420287134.1U patent/CN203970481U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107811671A (en) * | 2016-05-18 | 2018-03-20 | 黄文佳 | A kind of manual craniotomy drill |
| CN107811671B (en) * | 2016-05-18 | 2019-06-25 | 青岛大学附属医院 | A kind of manual craniotomy drill |
| CN106725720A (en) * | 2017-03-03 | 2017-05-31 | 周晓光 | One kind bores bone device |
| CN106725653A (en) * | 2017-03-03 | 2017-05-31 | 周晓光 | A kind of minimally invasive bone-operating device |
| CN112533549A (en) * | 2018-08-17 | 2021-03-19 | Emd公司 | Disposable perforator |
| CN110279333A (en) * | 2019-07-19 | 2019-09-27 | 慈溪赛嘉电子有限公司 | Disposable work head and electric tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 401121 New District of Chongqing City Jiangbei District North Park Jupiter Technology Development Center (Mount Huangshan Middle Road No. 9) Patentee after: CHONGQING XISHAN SCIENCE & TECHNOLOGY Co.,Ltd. Address before: 401121 New District of Chongqing City Jiangbei District North Park Jupiter Technology Development Center (Mount Huangshan Middle Road No. 9) Patentee before: CHONGQING XISHAN SCIENCE & TECHNOLOGY Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20141203 |