CN2381277Y - Self stopping skull drill - Google Patents
Self stopping skull drill Download PDFInfo
- Publication number
- CN2381277Y CN2381277Y CN 99232320 CN99232320U CN2381277Y CN 2381277 Y CN2381277 Y CN 2381277Y CN 99232320 CN99232320 CN 99232320 CN 99232320 U CN99232320 U CN 99232320U CN 2381277 Y CN2381277 Y CN 2381277Y
- Authority
- CN
- China
- Prior art keywords
- skull
- spring
- cutter
- clutch
- drill
- 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
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- Surgical Instruments (AREA)
Abstract
The utility model relates to a self stopping skull drill, which is mainly composed of a main skull drilling knife, a main clutch body, a drill head connecting rod, etc., wherein, the upper end face of the main drilling knife is engaged with a clutch gear sleeve. A spring casing tube, a spring and a spring ejector pin are arranged in the inner hole of the clutch gear sleeve; the upper end of the clutch gear sleeve is provided with a guide groove; the middle has a hole. Annular circular arc grooves are arranged on the spring casing tube and the main clutch body; the main clutch body is matched with the main skull drilling knife, an auxiliary limiting drilling knife and the clutch gear sleeve. The lower end of a dismountable switch is provided with a cam. The self stopping skull drill has the characteristics of high drilling efficiency, sensitive self stopping drill mechanism, better connection and overall stability, sensitivity and accuracy, no need of special tool for dismounting and mounting, and easy cleaning and disinfection of the product, and is capable of satisfying the sterile requirement, etc., of surgical instruments.
Description
This utility model is a kind of medical apparatus and instruments that is used for operation of opening cranium, particularly a kind of Self stopping skull drill.
Operation of opening cranium is the highly difficult big operation of a kind of required precision, and the difficulty of this operation is danger and is difficult for grasping.For a long time, open that cranium is many opens cranium with hand drill,, open skull accurately and do not accidentally injure meninges, entirely with the feel and the experience of operator because hard skull is close to tender meninges.Operation of opening cranium need a kind of safe and reliable, drive the cranium instrument fast and easily.Chinese patent CN92216807.5 discloses the technical scheme that a kind of automatic stop cranium bores, and is drilled on the market public offering with the automatic stop cranium of this technology manufacturing.This automatic stop cranium bores and can stop operating automatically by drill bit when cranial drill is saturating, and can not accidentally injure the patient, thereby relatively safety has also improved efficient, but there are some problems in structure connective stability, sensitivity and accuracy that this automatic stop cranium brill product exists arrangement of clutch, the folding dress of drill bit connecting rod and drill bit clutch main body needs specialist tools, and this also brings the inconvenience in the use.
The purpose of this utility model is to overcome the deficiency that prior art exists, a kind of technical scheme of new Self stopping skull drill is proposed, Self stopping skull drill by this scheme implementation has the drilling efficiency height, automatic stop rig structure is more responsive, the connective stability of arrangement of clutch, sensitivity and accuracy are better, and the Self stopping skull drill stability in the large is better, and dismounting does not need specific purpose tool, easy to clean, the sterilization of product, the characteristics such as aseptic requirement of the operating theater instruments that is content with very little.
This utility model is to implement like this, Self stopping skull drill, mainly bore cutter (7) by the skull master, auxiliary spacing brill (20), clutch main body (19), spring (4), drill bit connecting rod compositions such as (1), it is characterized in that, main upper surface of boring cutter is a 2-6 lower surface tooth (18), the upper surface tooth (17) of clutch tooth cover (11) is at least 4, the main cutter that bores connects auxiliary spacing brill cutter (20) by pin (6), pin-and-hole upper end open on the auxiliary spacing brill cutter, clutch tooth cover endoporus is established slidably pogo barrel (16), in the pogo barrel is spring (4), spring is spring knock pin (5) down, clutch tooth set upper side is provided with at least 1 for breaking away from the guide groove (10) that pin slides, the middle part is provided with at least 1 hole (15) that supplies locking ball (14) to pass through, have outer ring arc groove (13) on pogo barrel (16) cylindrical, annular arc groove (13) in clutch main body endoporus upper end is provided with respect to the steel ball hole position, clutch main body (19) is bored cutter with the skull master, auxiliary spacing brill cutter and clutch tooth cover cooperate, drill bit connecting rod (1) is connected with disassembling to close, and dismantles the switch lower end and has one section cam of being made up of curve (8) at least
This utility model can also be implemented like this, the main cutter cutting edge that bores is at least 4, and the lower surface tooth of tooth cover is at least 6, and the active spring coils number is at least 7 circles, the location is 3 with steel ball (13), and the cam height is put adapting apart from S and guide groove length L and amount of spring compression to low spot.The main material of Self stopping skull drill is a titanium alloy.
By the enforcement of above technical scheme, reached the purpose of this utility model substantially.
This utility model will be led and bore the cutter cutting edge and change at least 4 into by 2 of prior art, and cutting output will significantly improve under identical speed like this, and then shorten operating time, reduce patient's misery.Establish 6 upper surfaces engagements that 2-6 lower surface tooth and clutch tooth put on the main brill cutter, main drill bit revolution 60 degree just have 1 meshing point, have so just increased the accuracy of engaging tooth.As total number of teeth in engagement is 3, and main drill bit revolution 120 degree just have a meshing point, cause easily and skid, the effect of influence operation.Clutch main body endoporus directly cooperates with main cutter, auxiliary spacing brill cutter and the clutch tooth cover of boring, and has increased the stability between them, makes the Self stopping skull drill stable working, and clutch is reliable, has improved the drilling quality in performing the operation greatly.Opening device of the present utility model is the combination by cam spring and disengaging pin, and it is reliable and stable to make that like this brill cutter connects, and dismantles easily, does not need specialist tools.This utility model has increased number of active coils than the spring of prior art, make the winner bore cutter like this and when work, increased precompression, the sensitivity and the safety of the automatic stop of head brill have been improved, operation of opening cranium is because difficulty is big, the precision height, weight and the precision of driving the cranium instrument all will play an important role to operation, this utility model is made major part of titanium alloy, the weight of whole like this Self stopping skull drill will be bored than the rustless steel cranium and be alleviated 33%, also improved the tensile strength and the corrosion resistance of part, prolonged the service life of Self stopping skull drill, product is difficult for getting rusty and damaging, easy to clean, sterilization, the characteristics such as aseptic requirement of the operating theater instruments that is content with very little.
Self stopping skull drill drilling efficiency height described in the utility model, quality are good, are easy to dismounting, and convenient the use is a kind of novel operation of opening cranium instrument.
Accompanying drawing 1 is Self stopping skull drill assembling sketch map
Accompanying drawing 2 bores the cutter part drawing for Self stopping skull drill skull master
Accompanying drawing 3 is a Self stopping skull drill clutch tooth cover part drawing
Accompanying drawing 4 is that Self stopping skull drill clutch tooth cover A is to view
Accompanying drawing 5 is Self stopping skull drill dismounting switch part drawing
Embodiment
(1) drill bit connector, (2) dismounting switch, (3) screw, (4) spring, (5) spring knock pin, (6) pin, (7) skull master bore annular arc groove, (14) steel ball, (15) hole, (16) pogo barrel, (17) upper surface tooth, (18) lower surface tooth, (19) clutch main body, (20) auxiliary spacing brill cutter in cutter, (8) cam, (9) disengaging pin, (10) guide groove, (11) clutch tooth cover, (12) outer ring arc groove, (13).
It is 6 that the skull master bores the cutter cutting edge, is connected with auxiliary spacing cutter by pin (6), and for ease of dismounting, the pin-and-hole upper end open on the auxiliary spacing brill cutter is convenient to dismounting.The skull master bores the cutter upper end by 6 upper surface teeth (17) engagement of 2 lower surface teeth (18) with clutch tooth cover lower end, following end tooth also can be 3-6, clutch tooth cover endoporus is established can be at the pogo barrel of endoporus slip, establish spring knock pin and spring in the sleeve pipe, the active spring coils number is 8 circles, diameter is 0.7 millimeter, and material is 65Mn.Clutch main body endoporus and clutch tooth cover cylindrical, skull master bore cutter and auxiliary spacing brill cutter cylindrical movingly H/h be connected.Establish 3 through holes of 120 degree each other in clutch tooth set upper side, steel ball is housed in the hole, the clutch main body has the annular arc groove of width less than steel ball size with respect to the steel ball hole place, and spring is compressed at the end downwards, and pogo barrel has the annular arc groove of width less than steel ball size with respect to the steel ball place.Clutch tooth set upper side have two corresponding to spring travel, can be for breaking away from the waist shape guide groove of pin in interior slip.Disassemble close the upper end be provided with the centrage angle be the cam that two straight lines of 60 degree constitute, cam is put to the displacement S of low spot consistent with amount of spring compression by height.When rotation dismounting switch, break away from pin under action of cam, glide along guide groove, when pogo barrel drops to annular arc groove and aligns with steel ball hole, mobile clutch main body, steel ball slips into the annular half slot of pogo barrel, the clutch main body then can break away from clutch tooth cover, realizes dismounting.During installation, rotation dismounting switch makes the disengaging pin be in the guide groove highest order by the elastic force of spring, and pogo barrel rises, and annular arc groove and steel ball hole position on the pogo barrel interlace, and steel ball slips into clutch main body annular half slot, realizes connection from face.Except that the skull master bored cutter, steel ball, spring, screw and pin, remaining parts was all made of titanium alloy.
Claims (3)
1, a kind of Self stopping skull drill, mainly bore cutter (7) by the skull master, auxiliary spacing brill (20), clutch main body (19), spring (4), drill bit connecting rod compositions such as (1), it is characterized in that, main upper surface of boring cutter is a 2-6 lower surface tooth (18), the upper surface tooth (17) of clutch tooth cover (11) is at least 4, the main cutter that bores connects auxiliary spacing brill cutter (20) by pin (6), pin-and-hole upper end open on the auxiliary spacing brill cutter, clutch tooth cover endoporus is established slidably pogo barrel (16), in the pogo barrel is spring (4), spring is spring knock pin (5) down, clutch tooth set upper side is provided with at least 1 for breaking away from the guide groove (10) that pin slides, the middle part is provided with at least 1 hole (15) that supplies locking ball (14) to pass through, have outer ring arc groove (13) on pogo barrel (16) cylindrical, annular arc groove (13) in clutch main body endoporus upper end is provided with respect to the steel ball hole position, clutch main body (19) is bored cutter with the skull master, auxiliary spacing brill cutter and clutch tooth cover cooperate, drill bit connecting rod (1) is connected with disassembling to close, and dismantles the switch lower end and has one section cam of being made up of curve (8) at least.
2, Self stopping skull drill as claimed in claim 1, it is characterized in that the main cutter cutting edge that bores is at least 4, the lower surface tooth of tooth cover is at least 6, the active spring coils number is at least 7 circles, the location is 3 with steel ball (13), and the cam height is put adapting apart from S and guide groove length L and amount of spring compression to low spot.
3, Self stopping skull drill as claimed in claim 1, the main material that it is characterized in that Self stopping skull drill is a titanium alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99232320 CN2381277Y (en) | 1999-08-09 | 1999-08-09 | Self stopping skull drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99232320 CN2381277Y (en) | 1999-08-09 | 1999-08-09 | Self stopping skull drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2381277Y true CN2381277Y (en) | 2000-06-07 |
Family
ID=34021028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99232320 Expired - Fee Related CN2381277Y (en) | 1999-08-09 | 1999-08-09 | Self stopping skull drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2381277Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109700500A (en) * | 2019-02-11 | 2019-05-03 | 遵义医学院附属医院 | A kind of automatic stop type cranial drill |
| CN111658063A (en) * | 2020-07-20 | 2020-09-15 | 中国人民解放军陆军特色医学中心 | Drill-through automatic-stop skull drill bit and skull drill |
| GB2597512A (en) * | 2020-07-24 | 2022-02-02 | Adeor Medical AG | Perforator |
| CN114259275A (en) * | 2021-11-26 | 2022-04-01 | 海鹰企业集团有限责任公司 | Drill bit device capable of stopping suddenly after drilling through skull |
-
1999
- 1999-08-09 CN CN 99232320 patent/CN2381277Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109700500A (en) * | 2019-02-11 | 2019-05-03 | 遵义医学院附属医院 | A kind of automatic stop type cranial drill |
| CN111658063A (en) * | 2020-07-20 | 2020-09-15 | 中国人民解放军陆军特色医学中心 | Drill-through automatic-stop skull drill bit and skull drill |
| CN111658063B (en) * | 2020-07-20 | 2021-08-31 | 中国人民解放军陆军特色医学中心 | Drill-through automatic-stop skull drill bit and skull drill |
| GB2597512A (en) * | 2020-07-24 | 2022-02-02 | Adeor Medical AG | Perforator |
| CN114259275A (en) * | 2021-11-26 | 2022-04-01 | 海鹰企业集团有限责任公司 | Drill bit device capable of stopping suddenly after drilling through skull |
| CN114259275B (en) * | 2021-11-26 | 2024-04-09 | 海鹰企业集团有限责任公司 | Drill bit device capable of stopping suddenly after drilling skull |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |