CN209136776U - A kind of drill bit that drilling depth is controllable - Google Patents
A kind of drill bit that drilling depth is controllable Download PDFInfo
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- CN209136776U CN209136776U CN201821791851.2U CN201821791851U CN209136776U CN 209136776 U CN209136776 U CN 209136776U CN 201821791851 U CN201821791851 U CN 201821791851U CN 209136776 U CN209136776 U CN 209136776U
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Abstract
The utility model relates to the field of medical instrument technology, in particular to a kind of drill bit that drilling depth is controllable, including drill body, drill body includes threaded portion and straight-bar portion, straight-bar is carved with graduation mark in portion, through-hole is provided on threaded portion, the end in straight-bar portion is fixed with fixing head, the rod iron of rotatable drill bit is fixed in fixing head straight-bar portion, retaining ring is threaded in the straight-bar portion of drill body, retaining ring is rotatably connected to sleeve far from threaded portion one end, and drill body is hollow form, and chamber of the sleeve close to retaining ring side is connected to drill body hollow portion.The upper end end of fixing head is fixed using electric drill, can quickly be punched, rotate rod iron manually, can slowly punched, using electric drill, manually turns the graduation mark on rod iron and straight-bar portion and combines, promote the accuracy of punching；It pushes piston plate to make the air of sleeve absorption drill body hollow portion using slide bar, and then the bone bits that punching generates is adsorbed onto hollow portion.
Description
Technical field
The present apparatus is related to the field of medical instrument technology, in particular to a kind of drill bit that drilling depth is controllable.
Background technique
Cerebral hemorrhage refers to bleeding caused by angiorrhoxis in non-traumatic cerebral essence, account for whole cerebral apoplexies 20%~
30%, acute stage case fatality rate is 30%~40%.The symptom that patients with cerebral hemorrhage occurs at present is mainly the occupy-place of hemotoncus in cranial cavity
Effect and hemotoncus catabolite cause brain tissue impairment etc. related, and removing hemotoncus in cranial cavity in time becomes the key for the treatment of.
The treatment method of hemotoncus trepanation and drainage can be used for the hemotoncus of the formation in cranial cavity, technical process is first with drilling equipment
It drills outside cranium, then removes hemotoncus using drainage tube.The key whether successful surgery is the determination of hemotoncus position, and will
Sting device venipuncture is to Hemorrhagic location.
In the prior art, drilling is mainly realized by the way of electric drill drilling, however when being drilled using electric drill, by
Then it drives drill bit rotation to drill using motor, mainly relies on feel when patient operates to control drilling depth, cause to bore
The depth in hole is not easy to be controlled, and may damage to patient's brain tissue and blood vessel.
Utility model content
To solve the above-mentioned problems, the utility model provides a kind of drill bit that drilling depth is controllable, can control drill bit
Drilling depth, and can rapid drilling.
In order to achieve the above objectives, the technical solution adopted in the utility model is: a kind of drill bit that drilling depth is controllable, including
Drill body, drill body include threaded portion and straight-bar portion, graduation mark are carved in straight-bar portion, the end in straight-bar portion is fixed with fixation
Head, straight-bar portion are provided with through-hole in fixing head straight-bar portion, and the rod iron straight-bar portion of rotatable fixing head is fixed in through-hole.
The principles of the present invention are: referring to the graduation mark in drill body straight-bar portion, can know the brill of drill bit in real time
Hole depth realizes the control of bit bore depth；The end in straight-bar portion is fixed with fixing head, can use electric drill and consolidates fixing head
It is fixed, it then drives drill bit rotation to drill using electric drill, after drill bit drills through patient's skull, removes electric drill, rotate manually
Fixed rod iron, drill bit is continued to rotate in fixing head, and until threaded portion end turns to predetermined position, rotating backward rod iron will
Drill bit takes out drilling, then drainage tube is placed to hemotoncus position along drilling, and then achieve the purpose that drain cranial cavity hemotoncus.
Using the above scheme the advantages of, is:
1. drilling depth can be controlled: the method that this programme is combined using Manual drilling and electric drill drilling, with reference to drill bit sheet
The scale in the straight-bar portion of body, can see drilling depth in real time, can be controlled well drilling depth；And compared to one
Directly drilled using electric drill, due to electric drill drive bit the bad control of speed, patient's assurance bad for the depth of drilling,
This programme uses electric drill to drive bit bore first, after drill bit drills through patient's skull, removes after electric drill using can be manually rotated brill
The mode of head continues to drill, and after drilling through skull due to drill bit, the resistance that drill bit is subject to reduces, and Manual drilling is convenient for control drill bit
Feed speed, Manual drilling also can more prevent the generation of the emergency case of surrounding environment influence or mechanical disorder, and drill bit more can
Predetermined position is accurately turned to, the depth of bit bore is controlled better.
2. can also rapid drilling in the case where guaranteeing borehole accuracy: being not easy to drill since bone quality is harder, if only using hand
Dynamic drilling, it will it takes time and effort, and the time performed the operation is most valuable, this programme drives bit bore using electric drill, can be quick
The skull of patient is drilled, drilling time is saved, Manual drilling again is penetrated after skull, also can guarantee borehole accuracy.
Further, screw thread is provided in straight-bar portion and be threaded with retaining ring at the screw thread that is provided with.
After determining the position of hemotoncus, bit bore point is estimated at a distance from hemotoncus, is then kept off according to this distance rotation
The position relative to drill bit is enclosed, retaining ring is made to be equal to drilling to the distance of threaded portion end close to the end face of threaded portion one end of drill bit
Point pierces the extreme position of patients head convenient for control drill bit at a distance from hemotoncus, prevents the threaded portion of drill bit from passing through hemotoncus portion
Position, causes unnecessary injury to brain tissue and intracranial vessel.
Further, retaining mechanism is fixed on retaining ring.
It is fixed with retaining mechanism on retaining ring, after retaining ring is positioned, is fixed retaining ring using retention mechanism, anti-Sealing shield ring position
It sets and changes again, to influence effect of the retaining ring as limit.
Further, the end of threaded portion is built-in with ultrasonic sensor.
By ultrasonic sensor acquire signal, pass the signal of acquisition back computer, can analyze in real time drill bit relative to
The position of hemotoncus promotes the success rate of drilling.
Further, the initial value of graduation mark is distance value of the start index line to the end of the end of thread.
Since there are certain distances between start index line and the end of threaded portion, if the initial value of graduation mark is from zero
Start, then for user being easy that drill bit is adjusted according to this scale value, to cause to correspond to graduation mark on drill bit
Value is differed with drill bit actual borehole depth, and the actual depth to drill every time is made to be greater than predetermined depth, therefore the initial value of graduation mark
Should be start index line to the end of the end of thread distance value.
Further, retaining ring is rotatably connected to sleeve close to the one end in straight-bar portion, and piston plate, drill bit are slidably connected in sleeve
The both ends of the hollow setting of body interior and drill body seal, and it is logical that the bone meal generated for drilling is provided on the threaded portion of drill body
The through-hole crossed, piston plate is close to the chamber of retaining ring side and the middle part of drill bit is hollow is connected to；Piston plate is solid close to one end of retaining ring
Surely there is slide bar, the free end of slide bar passes through retaining ring and is slidably connected with retaining ring, and the free end end of slide bar and the end of threaded portion
Portion flushes.
When using bit bore, since the free end end of slide bar is flushed with the end of the threaded portion of drill body, bore
After head drilling patients head, the free end of slide bar and the scalp of patient offset, and can prevent due to patient's scalp shifts to brill
Hole impacts.Drill bit continues deeper into lower brill, and slide bar just will push piston plate and slide to threaded portion one end far from drill body, and
The both ends of the setting of drill body inner hollow and drill body seal, and the bone generated for drilling is provided on the threaded portion of drill body
The through-hole that powder passes through, piston plate is close to the chamber of retaining ring side and the middle part of drill body is hollow is connected to, when piston plate slides to far
When threaded portion one end from drill body, piston plate forms negative pressure in the chamber of retaining ring side, and the negative pressure of formation passes through brill
It is provided with the middle part hollow part that the bone chips that bit bore generates are drawn into drill body by through-hole on the threaded portion of head ontology, is prevented
The bone chips that only drill bit generates incorporate patient's cranial cavity and intracerebral, avoid that intracranial infection occurs in the later period, local foreign body stimulation causes
The probability of epilepsy etc., to eliminate safe hidden trouble.
Further, the quantity of slide bar is three, and three slide bars are circumferentially uniformly distributed along drill body.
Compared to a slide bar is used, using three slide bars and three slide bars are circumferentially uniformly distributed along drill body, can be with
Make piston plate when being pushed against by slide bar, the end face uniform force of piston plate, it is stuck that piston rod is not easy to sleeve lining, makes piston
Plate slides more smooth in sleeve；Three slide bars can provide support to drill bit simultaneously, make drill bit is more firm to be not susceptible to move
Position, promotes the accuracy of bit bore.
Further, the free end of three slide bars is fixed by baffle ring.
The free end of three slide bars is fixed using baffle ring, the stability of slide bar can be increased, is prevented opposite between slide bar
It moves and keeps three slide bars and retaining ring stuck, cause the case where can not continuing drilling；Baffle ring is fixed in the free end of slide bar simultaneously,
It can prevent slide bar end from scratching patient or medical worker.
Further, side of the baffle ring far from slide bar is plane.
Cross section compared to baffle ring is circle, and baffle ring is set as plane far from the side of slide bar, slide bar is pushed against trouble
When person head, the plane side and patient contact of baffle ring, the contact area increase of baffle ring and patient, so that baffle ring is to the steady of slide bar
Gu effect is reinforced, and then promotes the accuracy of bit bore.
Detailed description of the invention
Fig. 1 is a kind of elevational cross-sectional view for the drill bit that drilling depth is controllable in the utility model embodiment.
Fig. 2 is the left view of Fig. 1.
Fig. 3 be Fig. 1 along the sectional view of A-A.
Fig. 4 is partial enlarged view at B in Fig. 2.
Fig. 5 is partial enlarged view at C in Fig. 1.
Specific embodiment
It is further described below by specific embodiment:
Appended drawing reference in Figure of description includes: drill body 1, straight-bar portion 2, threaded portion 3, through-hole 4, retaining ring 5, fixes
First 6, rod iron 7, knob 8, sleeve 9, piston plate 10, slide bar 11, baffle ring 12, venthole 13, graduation mark 14, lower side cavity 15.
Embodiment is substantially as shown in Figure 1 and Figure 2, a kind of drill bit that drilling depth is controllable, including drill body 1, drill bit
The upside of ontology 1 be straight-bar portion 2, downside be the threaded portion 3 as punching, the middle part of drill body 1 it is hollow setting and both ends it is close
Envelope, in conjunction with Fig. 4, outer wall is provided with and the hollow through-hole 4 being connected in middle part, the straight-bar portion 2 of drill body 1 on 1 threaded portion 3 of drill body
It is provided with external screw thread, and the straight-bar portion 2 of drill body 1 is connected with retaining ring 5 by matching thread.At the same time, drill body 1 is straight
Axial milling at external screw thread in bar portion 2 along drill body 1 has plane, and graduation mark 14, the mark of graduation mark 14 are carved in plane
Value is incremented by from the bottom to top, and to guarantee that the initial value of graduation mark 14 is mapped with the depth value of bit bore, graduation mark 14 is risen
Initial value should be equal to start index line 14 to the length value of 3 lower end of threaded portion, and the initial value of graduation mark 14 is set as 10mm herein.
As shown in Figure 1, the top of drill body 1 is welded with fixing head 6, the lower end of fixing head 6 is threaded with can
It can be manually rotated the rod iron 7 of drill bit, the upper end end of fixing head 6 can be fixed by electric drill, and in conjunction with Fig. 5, the arranged on left and right sides of retaining ring 5 is equal
It is threaded with the knob 8 that can fasten retaining ring 5.
In conjunction with shown in Fig. 1 and Fig. 3, the upper end of retaining ring 5 is rotatably connected to sleeve 9, slidably connects piston plate in sleeve 9
10, the bottom end of piston plate 10 is welded with equally distributed three slide bars 11 of circumferential direction around drill body 1, the bottom end of three slide bars 11
It is welded on baffle ring 12 after both passing through retaining ring 5, the bottom end of baffle ring 12 is that support and firm work can be played to the drilling operation of drill bit
Plane.As shown in Figure 1, being provided on drill body 1 in the lower side cavity 15 of sleeve 9 and the 1 hollow phase in middle part of drill body
The venthole 13 of connection.
Specific implementation process is as follows:
1. adjusting retaining ring 5:
When initial, the knob 8 on retaining ring 5 is unscrewed, then according to the position of CT imaging analysis hemotoncus, calculates what needs drilled
Depth rotates retaining ring 5 according to drilling depth value, keeps 14 value of graduation mark of the lower end of retaining ring 5 equal with the value of drilling depth is needed,
After good retaining ring 5 to be adjusted, screwing knob 8 keeps retaining ring 5 fixed, and piston plate 10 is slipped to the bottom of sleeve 9 under the effect of gravity at this time
End.
2. rapid drilling:
After the position of retaining ring 5 is adjusted, the upper end end of fixing head 6 is fixed on electric drill, patient is found accurately and needs to bore
The position in hole, after carrying out Preoperative Method, starting motor drills, since the initial bore hole stage drills through the cranium that position is patient
Bone, so the initial stage drills, used strength is larger.
When drill bit carries out rapid drilling, drill bit constantly pierces skull, and baffle ring 12 compresses the scalp of patient, can prevent from boring
Scalp displacement at hole, impacts punching, while baffle ring 12 pushes slide bar 11 to move up, slide bar 11 pushes piston plate
10 in sleeve 9 upward sliding, the lower side chamber of sleeve 9 form negative pressure, the gas in lower side cavity 15 is hollow to 1 middle part of drill body
Body absorption, and then the bone chips for generating the through-hole 4 being provided on 1 threaded portion 3 of drill body absorption drilling, prevent bone chips
It is dissolved into patient's intracerebral, causes security risk.
3. slowly drilling:
After motor to be utilized drills through the cranial portion of patient, it can obviously feel that the resistance that drill bit is subject to reduces, at this time gently
Gently electric drill is removed, then can be manually rotated rod iron 7, gets into hemotoncus position under going deep into drill bit slowly, the end to threaded portion 3 is bored
To after predetermined position, drill bit is inverted using rod iron 7, drill bit is made to screw out drilling.
3. hemotoncus drains:
It is placed in drainage tube along drilling, judges whether to need to inject urokinase according to the actual situation and intracerebral clot disappears melt into
Watery blood retains 2-4 hours and is conducive to drainage with dissolved blood clot, can carefully squeeze drainage tube, releases and drains pipe plug caused by clot
Plug.
What has been described above is only an embodiment of the present invention, the common sense such as well known specific technical solution and/or characteristic in scheme
It does not describe excessively herein.It should be pointed out that for those skilled in the art, before not departing from technical solution of the present invention
It puts, several modifications and improvements can also be made, these also should be considered as protection scope of the present invention, these all will not influence this
Invent the effect and patent practicability implemented.The scope of protection required by this application should be based on the content of the claims,
The records such as the specific embodiment in specification can be used for explaining the content of claim.
Claims (9)
1. a kind of drill bit that drilling depth is controllable, including drill body, it is characterised in that: the drill body include threaded portion and
Graduation mark is carved in the straight-bar portion in straight-bar portion, and the end in straight-bar portion, straight-bar portion is fixed with fixing head, the fixing head upper straight rod
Portion is fixed with the rod iron straight-bar portion of rotatable fixing head.
2. a kind of controllable drill bit of drilling depth according to claim 1, it is characterised in that: be provided with spiral shell in the straight-bar portion
Retaining ring is threaded at line and the screw thread being provided with.
3. a kind of controllable drill bit of drilling depth according to claim 2, it is characterised in that: be fixed with lock on the retaining ring
Tight mechanism.
4. a kind of controllable drill bit of drilling depth according to claim 1, it is characterised in that: in the end of the threaded portion
It is equipped with ultrasonic sensor.
5. a kind of controllable drill bit of drilling depth according to claim 2, it is characterised in that: the initial value of the graduation mark
For the distance value of the end of start index line to the end of thread.
6. a kind of controllable drill bit of drilling depth according to claim 5, it is characterised in that: the retaining ring is close to straight-bar portion
One end be rotatably connected to sleeve, slidably connect piston plate in the sleeve, the drill body inner hollow setting and bore
The both ends of head ontology seal, and the through-hole that the bone meal generated for drilling passes through, the work are provided on the threaded portion of the drill body
Seben is close to the chamber of retaining ring side and the middle part of drill body is hollow is connected to；Piston plate is fixed with cunning close to one end of retaining ring
Bar, the free end of the slide bar passes through retaining ring and is slidably connected with retaining ring, and the free end end of slide bar and the end of threaded portion
It flushes.
7. a kind of controllable drill bit of drilling depth according to claim 6, it is characterised in that: the quantity of the slide bar is three
Root, three slide bars are circumferentially uniformly distributed along drill body.
8. a kind of controllable drill bit of drilling depth according to claim 7, it is characterised in that: the free end of three slide bars is solid
Surely there is baffle ring.
9. a kind of controllable drill bit of drilling depth according to claim 8, it is characterised in that: the baffle ring is far from slide bar
Side is plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821791851.2U CN209136776U (en) | 2018-10-31 | 2018-10-31 | A kind of drill bit that drilling depth is controllable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821791851.2U CN209136776U (en) | 2018-10-31 | 2018-10-31 | A kind of drill bit that drilling depth is controllable |
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| Publication Number | Publication Date |
|---|---|
| CN209136776U true CN209136776U (en) | 2019-07-23 |
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ID=67272030
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821791851.2U Active CN209136776U (en) | 2018-10-31 | 2018-10-31 | A kind of drill bit that drilling depth is controllable |
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| Country | Link |
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| CN (1) | CN209136776U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111390237A (en) * | 2020-03-13 | 2020-07-10 | 上海外高桥造船有限公司 | Drilling device |
| CN111513802A (en) * | 2020-05-06 | 2020-08-11 | 遵义医科大学附属医院 | Accurate limit for depth mill suit of backbone minimal access surgery with inhaling cutting formula percutaneous vertebral plate drilling grinding |
| CN113274092A (en) * | 2021-05-26 | 2021-08-20 | 贺玉婷 | Electric skull drill with automatic stop and limit functions |
-
2018
- 2018-10-31 CN CN201821791851.2U patent/CN209136776U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111390237A (en) * | 2020-03-13 | 2020-07-10 | 上海外高桥造船有限公司 | Drilling device |
| CN111390237B (en) * | 2020-03-13 | 2021-10-01 | 上海外高桥造船有限公司 | Drilling device |
| CN111513802A (en) * | 2020-05-06 | 2020-08-11 | 遵义医科大学附属医院 | Accurate limit for depth mill suit of backbone minimal access surgery with inhaling cutting formula percutaneous vertebral plate drilling grinding |
| CN113274092A (en) * | 2021-05-26 | 2021-08-20 | 贺玉婷 | Electric skull drill with automatic stop and limit functions |
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