CN102743206A - Hand drill with depth limiting device - Google Patents
Hand drill with depth limiting device Download PDFInfo
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- CN102743206A CN102743206A CN2012101240408A CN201210124040A CN102743206A CN 102743206 A CN102743206 A CN 102743206A CN 2012101240408 A CN2012101240408 A CN 2012101240408A CN 201210124040 A CN201210124040 A CN 201210124040A CN 102743206 A CN102743206 A CN 102743206A
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- drill
- screw thread
- craniotomy
- nut
- drill bit
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Abstract
The invention relates to a hand craniotomy drill with a depth limiting device. The hand craniotomy drill comprises a drill bit (1), a thread (2), a drill body (3), a drill body connecting portion (4) and a nut (5). The hand craniotomy drill has the advantages that the operation is simple, the usage is convenient, besides, drilling depth for a cranial bone can be adjusted according to the thickness of the cranial bone of a patient, the use cost is low, and the safety for usage is remarkably improved.
Description
Technical field
The present invention relates to a kind of hand drill for craniotomy that is used for the neurosurgery operation of opening cranium, the dark device of its band limit can bore the skull degree of depth according to the thickness adjusted of patient's skull.
Background technology
In the neurosurgery operation of opening cranium, drill for craniotomy is for must use apparatus, and present employed drill for craniotomy has electrodynamic type, pneumatic type and hand-rail type, and wherein hand-rail type is the most commonly used.The advantage of hand drill for craniotomy is that simple in structure, easy operation, usage charges are low, so use more general.The weak point that bitbrace exists mainly is that safety is low, bores and passes through the back under the pressure and inertia of hand holding handle, and drill bit possibly go deep into damaging dura mater and cerebral tissue easily in the brain.
Therefore, need a kind of can be according to patient's the skull degree of depth and the keyhole degree of depth freely, safety coefficient is high, simple to operate and need not the hand drill for craniotomy of skilled professional skill.
Summary of the invention
The object of the invention provides a kind of bitbrace with the dark device of limit in order to overcome above-mentioned defective, and it is not only simple to operate; Easy to use; Can bore the skull degree of depth according to the thickness adjusted of patient's skull, use cost is low, after cranial drill passes through; Can limit the distance that drill bit gos deep into skull, greatly improve safety.
For reaching above purpose; The invention provides a kind of hand drill for craniotomy with the dark device of limit; It comprises drill bit (1), screw thread (2), drill body (3), drill body connecting portion (4), nut (5); Wherein said screw thread (2) is arranged on the surface of said drill body (3) near said drill bit (1) one side, and in working order down said nut (5) pass said drill bit (1) and be meshed with said screw thread (2).After screw thread (2) and nut (5) engagement, just formed the dark device of limit.
In one embodiment, said drill bit (1) and the adjacent setting of said screw thread (2).
In another embodiment, the direction of rotation of screw thread (2) is counterclockwise upwards.
In a preferred embodiment, be provided with the rule of mark lengths (2) along its center line to screw thread from the apex point of said drill bit (1).The length of this rule is 5～20mm.
In another preferred embodiment, the length of screw thread is 10～20mm.
In one embodiment; Hand drill for craniotomy of the present invention is designed to when nut (5) is meshed the length that reaches predetermined counterclockwise with screw thread (2); Opposite spin nut (5) just can firm fixation on screw thread (2); When the drill bit clockwise direction bores skull, nut (5) more firm fixation on screw thread (2).
Beneficial effect of the present invention is very obvious, and the one, reasonable in design, make simple; Easy to operate; Guarantee safety, bore the skull degree of depth and can do corresponding adjusting, in order to avoid hurt dura mater according to art fore head CT or MRI calculating; Reduced the probability that drill bit passes dura mater even hurts cerebral tissue, the better protection cerebral tissue; The 2nd, time saving and energy saving, reusable, use cost is low, has significantly reduced postoperative after effect, avoids contingency to take place, and has improved safety, in the operation process of drill for craniotomy hole, has certain promoting the use of and social economic value.
Description of drawings
Fig. 1 is the axonometric chart of the hand drill for craniotomy of prior art;
Fig. 2 is the axonometric chart of hand drill for craniotomy of the present invention;
Fig. 3 is the axonometric chart of hand drill for craniotomy of the present invention under in working order.
The specific embodiment
Fig. 1 is the axonometric chart of prior art hand drill for craniotomy.As can beappreciated from fig. 1, owing to do not have the dark means of any limit, therefore when the drill for craniotomy hole, doctor's sensation and skill leaned in the grasp of the degree of depth fully, so the utmost point is unfavorable for that intern and low age and service seniority doctor use.And,, or cause threat to patient safety because of a variety of causes overexertion even skilled neurosurgeon also might be because of feeling to occur deviation because each patient's skull thickness difference or anatomy difference such as sclerotin soft or hard degree are not equal.
Fig. 2 is the axonometric chart for hand drill for craniotomy of the present invention; Wherein illustrate the hand drill for craniotomy of the dark device of band limit of the present invention; This hand drill for craniotomy is made up of drill bit (1), screw thread (2), drill body (3), drill body connecting portion (4), nut (5), and wherein screw thread (2) is arranged on the surface of drill body (3) near drill bit (1) one side.Can also see that from Fig. 2 drill bit (1) is adjacent with screw thread (2), and drill bit (1) is provided with center line, can carves as required on it to indicate the rule of length.
Fig. 3 is the axonometric chart of hand drill for craniotomy of the present invention under in working order, can find out therefrom that lower nut (5) passes drill bit (1) in working order to be meshed with screw thread (2).When using hand drill for craniotomy of the present invention, calculate the skull thickness of the drill hole of wanting according to art fore head CT or MRI, be generally 5-10mm, skull thickness is screw thread (2) and nut (5) and is meshed afterwards apart from the length of the apex point of drill bit (1).And after the engagement of screw thread (2) and nut (5), just formed the dark device of limit, can or not go deep into again because of the existence of nut (5) after making drill bit (1) bore to pass through skull, to avoid hurting dura mater and cerebral tissue; Because most operative doctor is a dextromanuality; Bore the influential point of bone and bore in a clockwise direction, so screw thread (2) is with counterclockwise upwards, when being rotated counterclockwise nut (5) when reaching the length of being calculated; Opposite spin one lower nut (5) just can be its firm fixation on boring again; When clockwise direction bores bone, nut (5) only more firm fixation on boring, and do not worry that it can move or comes off from boring.Certainly, screw thread and nut also can be provided with the mode opposite with aforesaid way, and promptly direction of rotation is in the clockwise direction, and bore bone counterclockwise to bore, and this mode is also included within the scope of the present invention.
With reference to preferred implementation of the present invention the present invention is specified.Yet what it will be understood by those skilled in the art that is under the situation that does not deviate from principle of the present invention and spirit, to make change to these embodiments.
Claims (7)
1. hand drill for craniotomy with the dark device of limit; It comprises drill bit (1), screw thread (2), drill body (3), drill body connecting portion (4), nut (5); Wherein said screw thread (2) is arranged on the surface of said drill body (3) near said drill bit (1) one side, and in working order down said nut (5) pass said drill bit (1) and be meshed with said screw thread (2).
2. hand drill for craniotomy according to claim 1 is characterized in that said drill bit (1) and the adjacent setting of said screw thread (2).
3. hand drill for craniotomy according to claim 1 and 2, the direction of rotation that it is characterized in that screw thread (2) is for make progress counterclockwise.
4. according to each described hand drill for craniotomy among the claim 1-3, it is characterized in that being provided with (2) along its center line to screw thread the rule of mark lengths from the apex point of said drill bit (1).
5. hand drill for craniotomy according to claim 4, the length that it is characterized in that said rule is 5～20mm.
6. according to each described hand drill for craniotomy among the claim 1-5, the length that it is characterized in that screw thread is 10～20mm.
7. according to each described hand drill for craniotomy among the claim 3-6; It is characterized in that said hand drill for craniotomy is designed to when nut (5) is meshed the length that reaches predetermined counterclockwise with screw thread (2); Opposite spin nut (5) just can firm fixation on screw thread (2); When the drill bit clockwise direction bores skull, nut (5) more firm fixation on screw thread (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101240408A CN102743206A (en) | 2012-04-15 | 2012-04-15 | Hand drill with depth limiting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101240408A CN102743206A (en) | 2012-04-15 | 2012-04-15 | Hand drill with depth limiting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102743206A true CN102743206A (en) | 2012-10-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101240408A Pending CN102743206A (en) | 2012-04-15 | 2012-04-15 | Hand drill with depth limiting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102743206A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105458338A (en) * | 2015-12-29 | 2016-04-06 | 芜湖东旭光电科技有限公司 | Reaming dredging tool of air pipe mounting plate of shaping furnace |
| CN105726124A (en) * | 2016-02-06 | 2016-07-06 | 齐欣 | Proximal femur operation positioning and orientating system and manufacturing method thereof |
| CN111467070A (en) * | 2020-05-06 | 2020-07-31 | 四川大学华西医院 | Animal skull defect model modeling tool and use method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2055025U (en) * | 1989-01-14 | 1990-03-28 | 张建 | Adjustable safety cranium drill operated by hand |
| CN2478552Y (en) * | 2001-05-17 | 2002-02-27 | 中国人民解放军第一六三医院 | Multi-functional self-stopping hand drill |
| CN2488476Y (en) * | 2001-08-08 | 2002-05-01 | 辛克清 | Hand cranial drill bit |
| CN201244061Y (en) * | 2008-08-25 | 2009-05-27 | 亓立国 | Anti-fatigue reciprocating type skull-perforating hand drill |
| CN202776462U (en) * | 2012-04-15 | 2013-03-13 | 孟凡刚 | Hand drill with depth limit device |
-
2012
- 2012-04-15 CN CN2012101240408A patent/CN102743206A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2055025U (en) * | 1989-01-14 | 1990-03-28 | 张建 | Adjustable safety cranium drill operated by hand |
| CN2478552Y (en) * | 2001-05-17 | 2002-02-27 | 中国人民解放军第一六三医院 | Multi-functional self-stopping hand drill |
| CN2488476Y (en) * | 2001-08-08 | 2002-05-01 | 辛克清 | Hand cranial drill bit |
| CN201244061Y (en) * | 2008-08-25 | 2009-05-27 | 亓立国 | Anti-fatigue reciprocating type skull-perforating hand drill |
| CN202776462U (en) * | 2012-04-15 | 2013-03-13 | 孟凡刚 | Hand drill with depth limit device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105458338A (en) * | 2015-12-29 | 2016-04-06 | 芜湖东旭光电科技有限公司 | Reaming dredging tool of air pipe mounting plate of shaping furnace |
| CN105458338B (en) * | 2015-12-29 | 2018-04-03 | 芜湖东旭光电科技有限公司 | Instrument is dredged in shaping furnace airduct installing plate reaming in glass substrate forming technique |
| CN105726124A (en) * | 2016-02-06 | 2016-07-06 | 齐欣 | Proximal femur operation positioning and orientating system and manufacturing method thereof |
| CN105726124B (en) * | 2016-02-06 | 2019-01-15 | 齐欣 | Near end of thighbone location of operation orientation system and preparation method thereof |
| CN111467070A (en) * | 2020-05-06 | 2020-07-31 | 四川大学华西医院 | Animal skull defect model modeling tool and use method thereof |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121024 |