CN203763165U - Safe skull driller - Google Patents
Safe skull driller Download PDFInfo
- Publication number
- CN203763165U CN203763165U CN201420090019.5U CN201420090019U CN203763165U CN 203763165 U CN203763165 U CN 203763165U CN 201420090019 U CN201420090019 U CN 201420090019U CN 203763165 U CN203763165 U CN 203763165U
- Authority
- CN
- China
- Prior art keywords
- drilling rod
- drill bit
- skull
- safety
- safe
- 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 - Fee Related
Links
Abstract
The utility model relates to a skull driller, in particular to a safe skull driller used for neurosurgery operation. The safe skull driller comprises a driving chest, a handle and a drill rod, wherein the rear end of the drill rod is connected with the driving chest; a drill bit is mounted at the front end of the drill rod; a torque measuring instrument is arranged at the middle section of the drill rod; the torque measuring instrument is connected with a controller mounted on a casing through a circuit; the controller is connected with a brake device and the driving chest through the circuit; a connecting sleeve is arranged at the front section of the drill rod; the outer ring of the connecting sleeve is connected with a positioning sleeve through a thread; a calibrated scale is arranged on the outer surface of the connecting sleeve. According to the safe skull driller, the design is reasonable and the operation is convenient; as the positioning sleeve and a brake control system are adopted to realize double fail-safe, the safety coefficient of equipment is greatly improved, the risks caused by human factors are avoided and the practicability is high.
Description
Technical field
This utility model relates to a kind of cranial drill, is specifically related to a kind of safety cranial bone drill for neurosurgery, belongs to medical instruments field.
Background technology
Cranial drill is one of indispensable medical apparatus and instruments of cerebral surgery operation, while carrying out operation of opening cranium, conventionally need to use cranial drill to hole to skull.At present, while using cranial drill hand feed boring, the grasp of boring depends on doctor's experience and proficiency, relies on prominent while penetrating to wear sense and feel judges whether to penetrate skull.Below skull, be meninges, be cerebral tissue in meninges, adopt in this way, once operator grasps bad dynamics, be easy to cause excessive feeding, cause brain tissue impairment, danger is very high.Some improved cranial drills, by using positioner, according to the thickness of skull, determine the depth capacity of feeding, with this, avoid damage.Yet, because the thickness of skull mainly relies on CT scan radiography to determine, be easy to occur error, still there is higher risk.
Utility model content
According to above the deficiencies in the prior art, the purpose of this utility model is: a kind of safety cranial bone drill is provided, and rational in infrastructure, safety coefficient improves greatly, simple to operate, easy to use.
Safety cranial bone drill described in the utility model, comprise driving box, handle, drilling rod, drilling rod rear end connects driving box, drilling rod front end is installed drill bit, drilling rod stage casing mounting torque measuring instrument, torductor is arranged on the controller on housing by connection, and controller is by connection brake gear and driving box; Drilling rod leading portion is provided with adapter sleeve, and adapter sleeve outer ring is threaded connection positioning sleeve, and adapter sleeve outer surface is provided with rule.
By driving box, drive drilling rod to rotate, drilling rod drives drill bit work, when the downward drill bit bone of drill bit, because skull density and high hardness is large, the moment of torsion of drill bit increases thereupon, and when bit drills penetrator bone, moment of torsion reduces rapidly, by torductor, can measure the variation of moment of torsion, when monitoring control devices declines to a great extent suddenly to torque value, controller is controlled brake gear and is started brake, makes drill bit stop rapidly to bore, close driving power simultaneously, guarantee safety operation.By positioning sleeve, can according to skull thickness, adjust position in advance, to limit the ultimate range of drill bit feeding.By the dual fail-safe of positioning sleeve and brake gear, greatly improved the safety of doctor's operation.
Described brake gear comprises electric magnet, brake block, two brake blocks are symmetricly set on drilling rod both sides, electric magnet is arranged on brake block rear portion, and the upper and lower two ends of brake block connect by spring, during normal power-up, electric magnet holds brake block, drilling rod freely rotates between two brake blocks, and when drilling skull, controller cuts out electric magnet energising, electric magnet loses magnetism, and brake block is embraced brake by drilling rod under the effect of spring force.
The front end face of described positioning sleeve initial adjustment position is less than adapter sleeve front end face apart from drill bit distance apart from drill bit distance, and when boring saturating skull, the front end face of positioning sleeve is against patient's head, and front end face to the distance of drill bit is and pierces the degree of depth.
In described positioning sleeve, be provided with bearing, drilling rod is arranged on bearing; Housing outer surface is installed Anti-slip cover, and Anti-slip cover can be rubber or plastic material, avoids operator's hand to skid.
Described drill bit is comprised of head and afterbody, head maximum gauge is less than afterbody maximum gauge, head maximum gauge to one section of diameter of afterbody reduces gradually, the maximum gauge of afterbody is slightly larger than head maximum gauge, in normal boring procedure, head and afterbody are holed simultaneously, wherein head bears most moment of torsion, when first drill bit head bores skull, moment of torsion reduces rapidly, and drill bit stops operating simultaneously, and between afterbody and head, forms the screens of similar step, when this screens can be avoided undue force, drill bit inserts in meninges downwards.
During use, first according to CT scan result, determine the thickness of skull, rotational positioning cover, positioning sleeve is adjusted to corresponding scale position, open switch, start drill bit, when drill bit normally pierces, the moment of torsion of drilling rod increases, torductor feeds back to controller in time by torque value, when drilling skull, torque value reduces rapidly, and controller detects after this signal, at once by electric magnet power-off, brake block is embraced rapidly drilling rod under the effect of recoil of spring power, makes drilling rod stop boring, and the afterbody of drill bit prevents that drill bit from pressing down cerebral tissue is caused to damage simultaneously.
Compared with prior art, the beneficial effect the utlity model has is:
Safety cranial drill is reasonable in design, easy and simple to handle, by positioning sleeve and the brake control system dual fail-safe safety coefficient that raising equipment is used greatly, and the risk of avoiding anthropic factor to cause, practicality is high; By the difference of drill bit head and tail diameter, form step screens, further increase safety coefficient.
Accompanying drawing explanation
Fig. 1 is this utility model structural representation.
In figure: 1, drill bit; 2, drilling rod; 3, positioning sleeve; 4, bearing; 5, adapter sleeve; 6, controller; 7, torductor; 8, Anti-slip cover; 9, brake block; 10, reduction box; 11, driving box; 12, hands handle; 13, housing; 14, electric magnet; 15, spring; 16, rule; 101, head; 102, afterbody.
Specific embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is further described.
As shown in Figure 1, safety cranial drill, comprises driving box 11, handle 12, drilling rod 2, drilling rod 2 front ends are installed drill bit 1, and drilling rod 2 rear ends are passed adapter sleeve 5, housing 13 successively, and are connected with driving box 11 by reduction box 10, driven unit, driving box 11 1 side connecting handles 12 are installed in driving box.Drilling rod 2 stage casing mounting torque measuring instruments 7, torductor 7 is arranged on the controller 6 on housing 13 by connection, controller 6 is by connection brake gear and driving box 11, brake gear comprises electric magnet 14, brake block 9, two brake blocks 9 are symmetricly set on drilling rod 2 both sides, and electric magnet 14 is arranged on brake block 9 rear portions, and brake block connects by spring 15 at two ends Shang Xia 9, the magnetic force producing after electric magnet 14 energisings is opened brake block 9, and drilling rod is freely rotated.In adapter sleeve 5, being provided with bearing 4 is connected with drilling rod 2, drilling rod 2 leading portions are provided with adapter sleeve 5, adapter sleeve 5 outer rings are threaded connection positioning sleeve 3, by being rotationally connected cover 5, regulate its position, the front end face of positioning sleeve 3 initial adjustment positions is less than adapter sleeve 5 front end faces from drill bit 1 distance apart from drill bit 1 distance, adapter sleeve 5 outer surfaces are provided with rule 16, to determine adjustable range.Wherein, also can use measuring current intensity instrument to connect controller 6, measuring current intensity instrument connects driving box 11, and by measuring current intensity, the rapid variation by current intensity stops boring.
Housing 13 outer surfaces are installed Anti-slip cover 8, and Anti-slip cover 8 can be quality of rubber materials or plastic material.
Drill bit 1 is comprised of head 101 and afterbody 102, head 101 maximum gauges are less than afterbody 102 maximum gauges, head 101 maximum gauges to one section of diameter of afterbody 102 reduces gradually, the maximum gauge of afterbody 102 is slightly larger than head 101 maximum gauges, in normal boring procedure, head 101 and afterbody 101 are holed simultaneously, wherein head 101 bears most moment of torsion, when first drill bit 1 head 101 bores skull, moment of torsion reduces rapidly, drill bit 1 stops operating simultaneously, and between afterbody 102 and head 101, form the screens of similar step, when this screens can be avoided undue force, drill bit inserts in meninges downwards.
Work process:
During use, first according to CT scan result, determine the thickness of skull, rotational positioning cover 3, positioning sleeve 3 is adjusted to corresponding scale position, open switch, start drill bit 1, when drill bit 1 normally pierces, the moment of torsion of drilling rod 2 increases, torductor 7 feeds back to controller 6 in time by torque value, when drilling skull, torque value reduces rapidly, controller 6 detects after this signal, at once by electric magnet 14 power-off, brake block 9 is embraced rapidly drilling rod 2 under spring 15 resilience force effects, make drilling rod 2 stop boring, simultaneously the afterbody 102 of drill bit 1 prevents that drill bit 1 from pressing down cerebral tissue is caused to damage.
Claims (5)
1. a safety cranial bone drill, comprise driving box (11), handle (12), drilling rod (2), drilling rod (2) rear end connects driving box (11), drilling rod (2) front end is installed drill bit (1), it is characterized in that: drilling rod (2) stage casing mounting torque measuring instrument (7), torductor (7) is arranged on the controller (6) on housing (13) by connection, and controller (6) is by connection brake gear and driving box (11); Drilling rod (2) leading portion is provided with adapter sleeve (5), and adapter sleeve (5) outer ring is threaded connection positioning sleeve (3), and adapter sleeve (5) outer surface is provided with rule (16).
2. safety cranial bone drill according to claim 1, it is characterized in that: described brake gear comprises electric magnet (14), brake block (9), two brake blocks (9) are symmetricly set on drilling rod (2) both sides, electric magnet (14) is arranged on brake block (9) rear portion, and the upper and lower two ends of brake block (9) connect by spring (15).
3. safety cranial bone drill according to claim 1, is characterized in that: the front end face of described positioning sleeve (3) initial adjustment position is less than adapter sleeve (5) front end face from drill bit (1) distance apart from drill bit (1) distance.
4. safety cranial bone drill according to claim 1, is characterized in that: in described positioning sleeve (3), be provided with bearing (4), drilling rod (2) is arranged on bearing (4); Housing (13) outer surface is installed Anti-slip cover (8).
5. according to the arbitrary described safety cranial bone drill of claim 1～4, it is characterized in that: described drill bit (1) is comprised of head (101) and afterbody (102), head (101) maximum gauge is less than afterbody (102) maximum gauge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420090019.5U CN203763165U (en) | 2014-02-28 | 2014-02-28 | Safe skull driller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420090019.5U CN203763165U (en) | 2014-02-28 | 2014-02-28 | Safe skull driller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203763165U true CN203763165U (en) | 2014-08-13 |
Family
ID=51280423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420090019.5U Expired - Fee Related CN203763165U (en) | 2014-02-28 | 2014-02-28 | Safe skull driller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203763165U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104644239A (en) * | 2015-01-22 | 2015-05-27 | 芜湖锐进医疗设备有限公司 | Novel craniotomy drill bit structure |
| CN104720869A (en) * | 2015-04-14 | 2015-06-24 | 孙传正 | Neurosurgery skull driller |
| CN105342674A (en) * | 2015-12-16 | 2016-02-24 | 陆培华 | Route access clip capable of automatically preventing screwing operation for laparoscope |
| CN106983535A (en) * | 2017-05-10 | 2017-07-28 | 刘敏 | A kind of new safe cranial drill |
| CN109528267A (en) * | 2018-12-27 | 2019-03-29 | 南通市第人民医院 | A kind of skull drilling device of operation |
| CN113274092A (en) * | 2021-05-26 | 2021-08-20 | 贺玉婷 | Electric skull drill with automatic stop and limit functions |
| CN114404015A (en) * | 2016-06-07 | 2022-04-29 | 普罗德克斯有限公司 | Torque limiting device |
-
2014
- 2014-02-28 CN CN201420090019.5U patent/CN203763165U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104644239A (en) * | 2015-01-22 | 2015-05-27 | 芜湖锐进医疗设备有限公司 | Novel craniotomy drill bit structure |
| CN104720869A (en) * | 2015-04-14 | 2015-06-24 | 孙传正 | Neurosurgery skull driller |
| CN105342674A (en) * | 2015-12-16 | 2016-02-24 | 陆培华 | Route access clip capable of automatically preventing screwing operation for laparoscope |
| CN105342674B (en) * | 2015-12-16 | 2017-12-15 | 陆培华 | The laparoscope of operation can be automatically prevented from screwing in taking an outpost of the tax office |
| CN114404015A (en) * | 2016-06-07 | 2022-04-29 | 普罗德克斯有限公司 | Torque limiting device |
| CN106983535A (en) * | 2017-05-10 | 2017-07-28 | 刘敏 | A kind of new safe cranial drill |
| CN109528267A (en) * | 2018-12-27 | 2019-03-29 | 南通市第人民医院 | A kind of skull drilling device of operation |
| WO2020133231A1 (en) * | 2018-12-27 | 2020-07-02 | 周学军 | Surgical cranial driller |
| CN113274092A (en) * | 2021-05-26 | 2021-08-20 | 贺玉婷 | Electric skull drill with automatic stop and limit functions |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203763165U (en) | Safe skull driller | |
| CN201356602Y (en) | Safe drill for skull operations | |
| CN201775653U (en) | Orienting electric skull drill | |
| TWI418327B (en) | Medical electric drill | |
| WO2010078230A4 (en) | Drill bits with cutters to cut high side of wellbores | |
| CN209048469U (en) | Device is removed after a kind of orthopaedics plaster bandage ligamentopexis | |
| CN108042171B (en) | Skull drill for neurosurgery | |
| CN105342662A (en) | Adjustable limit safety drilling device for orthopedic department | |
| CN209136776U (en) | A kind of drill bit that drilling depth is controllable | |
| CN203662844U (en) | Skull drill bit capable of being repeatedly used and automatically stopping while drilling through skull | |
| CN204169895U (en) | A kind of cranial drill | |
| CN205006971U (en) | Spacing safe drilling equipment of orthopedics with adjustable | |
| CN201044760Y (en) | An adjustable safety orthopaedics drill bushing | |
| CN111658063B (en) | Drill-through automatic-stop skull drill bit and skull drill | |
| CN207898515U (en) | A kind of novel neurosurgery auxiliary instrument | |
| CN201267506Y (en) | Craniotome convenient for safe use | |
| CN201505161U (en) | Electric drill for medical automatic-stop restriction device | |
| CN204890093U (en) | Medical cranium brain bores | |
| CN211270977U (en) | Self-tapping skull hollow drill | |
| CN202288396U (en) | Skull drilling device and a traction positioning and guiding device thereof | |
| CN203263484U (en) | Novel directional electric bone drill | |
| CN203042365U (en) | Drill bit depth controller | |
| LU101607B1 (en) | Surgical tool for force measurement and distance measurement | |
| CN102309354A (en) | Automated skull drilling mechanism | |
| CN203089279U (en) | Drill depth controller |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140813 Termination date: 20150228 |
|
| EXPY | Termination of patent right or utility model |