CN201384531Y - Intelligent bone drill - Google Patents
Intelligent bone drill Download PDFInfo
- Publication number
- CN201384531Y CN201384531Y CN200920127085U CN200920127085U CN201384531Y CN 201384531 Y CN201384531 Y CN 201384531Y CN 200920127085 U CN200920127085 U CN 200920127085U CN 200920127085 U CN200920127085 U CN 200920127085U CN 201384531 Y CN201384531 Y CN 201384531Y
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- bone drill
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- drill bit
- drill
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Abstract
The utility model discloses an intelligent bone drill, wherein a strain torque sensor, a rotary speed sensor or a pressure sensor is arranged on a common bone drill motor, the bone drill motor is further provided with an embedded intelligent control module for receiving and judging signals collected by the sensor, and controlling the bone drill motor. The intelligent bone drill has the beneficial effects that a Hall sensor and a metal reading code disc are arranged on a base body of a common bone drill motor for forming a rotary speed sensor, a torque sensor and a pressure sensor to measure and display rotary speed, torque and pressure of a drill bit in real time, the intelligent bone drill realizes judging whether the drill bit has drilled a bone tissue or not through three parameters, realizes automatic drill stopping and reverse rotation control, an ultrasonic energy converter is arranged on the bone drill motor to measure the drilled depth of the drill bit accurately. Effective data can be provided for surgery operators in operations and real time reliable protection can be carried out through the modification.
Description
Technical field
This utility model relates to a kind of medical apparatus and instruments, more precisely relates to a kind of intelligent bone drill.
Technical background
Bone drill motor (abbreviation bone drill) is one of orthopaedics operating theater instruments commonly used.And its security performance of existing bone drill is difficult for ensureing; mainly be presented as: pierce the degree of depth; the rotating speed of electric drill; the control of start-stop etc. is artificially controlled by the operation technique person; and the doctor selects surgical incision one side skin " comparatively safe side " often; it is exactly an important vessel and neural less or operation technique side easily; and the opposite side of skeleton has important vessel and nerve; after the rotary head high speed rotating that existing orthopaedics electricity changes passes the offside cortical bone; be not easy very much control; and injure blood vessel; nerve or muscle; this also is the problem of doctor's headache of a lot of high age and service seniority; and the doctor is for fear of this damage; usually the method that adopts is that periosteum and muscle around the two ends of fracture are peeled off from skeleton, and the reuse periosteal elevator is put into the opposite and blocks protection.The defective of said method is:
1, operating time and working strength have been increased;
2, increase the degree of injury of fracture end, peeled off the periosteum at fracture two ends, fracture end blood fortune is reduced or stopped, having caused the union of fracture difficulty, postponed or disunion, increased patient's bed rest time and financial burden;
3, the muscle terminal around the cleavage fracture has increased amount of bleeding;
After each boring, need to fathom, increased operating time and not corresponding indication and protective measure, thereby had bigger medical safety hidden danger with dip stick.
Summary of the invention
This utility model provides a kind of intelligent bone drill, and its scheme is: the bone drill motor be provided with in strain-type torque sensor, speed probe or the pressure transducer any one, two kinds or three kinds of senser elements; On the bone drill motor, also be provided with the induced signal of embedded intelligence control module receiving sensor spare collection and judge control bone drill motor.
Strain gauge transducer described in the utility model is made of four foil gauges, and four foil gauges are arranged on the same cross section of the annular metal member on the bone drill motor body, with the angle of annular metal member axis be ± 45 °; Described speed probe is made of Hall element and metal reading code-disc; Metal is read the stiff end that code-disc is installed on the drill bit of bone drill motor, rotates with speed with drill bit, and metal reads to have on the code-disc a plurality of circular holes to be positioned on the same circumference; Hall element is installed on the front end of bone drill motor body, and the axis normal of Hall element is read code-disc in metal, and reads on the circumference that code-disc intersects at the circular hole place with metal.
Described circular hole can be that quantity is 12; Described pressure transducer places the bone drill motor internal.
Stiff end at the drill bit of bone drill motor also is equipped with ultrasonic transducer, and hyperacoustic transmit direction is parallel with drill bit.
Useful technique effect of the present utility model is: be provided with on the matrix of common bone drill motor and constitute speed probe, torque sensor and pressure transducer by Hall element and metal reading code-disc drill speed, moment of torsion and pressure are measured in real time, shown, realize whether drill bit is drilled the differentiation of osseous tissue by three kinds of parameters, and realize stopping automatically the control of boring and reversing; Ultrasonic transducer is set on the bone drill motor can accurately measures the degree of depth that pierces of drill bit.Can active data be provided in art and carry out the real-time reliable protection for the operation technique person by above-mentioned improvement.
Description of drawings
Fig. 1 is the block diagram of system;
Fig. 2 is a numerically controlled intelligent bone drill transducer arrangements sketch map;
Fig. 3 is the A-A view of Fig. 2.
In the accompanying drawing: 1 ultrasonic transducer, 2 strain-type torque sensors, 3 drill bits, 4 Hall elements, 5 metal reading code-discs, 6 intelligent control modules, 7 annular metal member, 8 foil gauges.
The specific embodiment
Further specify below in conjunction with the drawings and specific embodiments:
After deliberation, the bone drill motor in operation process drill bit in osseous tissue drilling and penetrate osseous tissue after, the moment of torsion that the bone drill electric machine rotational axis produces owing to the effect that is subjected to resistance exists significantly different.For the operation technique person, the sense that significantly falls through is arranged drilling moment.The sign of the moment of torsion that this sense that falls through is produced on the bone drill electric machine rotational axis is exactly a descending step of moment of torsion.
Therefore, be provided with an annular metal member 7 as shown in Figure 2 on the body of bone drill motor, be respectively arranged with four foil gauges 8 on annular metal member 7 upper edge axle ± 45 ° directions, foil gauge 8 adopts high temperature strain foil, can satisfy the autoclave sterilization requirement.Four foil gauges 8 are positioned on the same cross section of annular metal member 7, constitute strain-type torque sensor 2, and the maximum positive and negative strain on the inductive axis is formed full-bridge circuit, the then exportable voltage signal that is directly proportional with moment of torsion M with it.This connection can be eliminated the interference of axial force and bending force.The moment of torsion that drill bit 3 is produced is passed on the annular metal member 7, and intelligent monitoring module 6 is by the measurement to full-bridge circuit, can calculate the suffered change in torque of drill bit 3.
Real-time tracking is carried out in the variation of 6 pairs of drill bit 3 moments of torsion of intelligent monitoring module, and decidable drill bit 3 has penetrated skeleton when detecting drill bit 3 moments of torsion descending step evolution sudden change takes place, and sends to stop boring instruction and implement to stop boring.
In addition, drilling skeleton moment, the operation technique person can feel that drill bit 3 rotary speeies obviously increase, at this moment, also there is a step from slow to fast in the rate signal that records with Hall element 4, the measurement of adopting Hall element 4 to cooperate special metal reading code-disc 5 to realize for rate signal.
As shown in Figure 2, metal reading code-disc 5 is installed on drill bit 3 stiff ends, rotates with speed with drill bit 3.On the metal reading code-disc 5 with drill bit 3 centre of gyration coaxial arrangement 12 circular holes, Hall element 4 is installed in the front end of bone drill motor body, its axis normal is in metal reading code-disc 5, and intersect on the circumference that circle center line connecting constituted of 12 circular holes with code-disc, Hall element 4 and metal reading code-disc 5 constitute speed probes.Because Hall effect, when the circular hole on the metal reading code-disc 5 or metal during near Hall element 4, Hall element will produce different level and export.According to measuring the rotating speed that time that speed that level changes and level continue can obtain metal reading code-disc 5 is the rotating speed of drill bit 3.
The rotating speed of 6 pairs of drill bits 3 of intelligent monitoring module carries out real-time tracking, and decidable drill bit 3 has penetrated skeleton when detecting drill bit 3 rotating speeds from slow to fast step sudden change takes place, and sends to stop boring instruction and implement to stop boring.
When drill bit 3 drills skeleton, drill bit 3 suffered pressure also can produce step, and (pressure transducer is arranged on the bone drill motor internal, omit in the accompanying drawing), the pressure that 6 pairs of drill bits 3 of intelligent monitoring module are subjected to carries out real-time tracking, decidable drill bit 3 has penetrated skeleton when detecting pressure that drill bit 3 is subjected to descending step sudden change takes place, and sends to stop boring instruction and implement to stop boring.
Variation with drill bit 3 moments of torsion, rotating speed, three kinds of parameters of pressure is used as penetrating the criterion of skeleton, penetrate skeleton as long as judge drill bit 3 according to the variation of arbitrary parameter wherein, the judgement that drill bit 3 penetrates skeleton all can be made by system, thereby has increased the reliability of system works.
As previously mentioned, should stop the rotation of drill bit 3 when penetrating skeleton immediately in case judge drill bit 3.What traditional bone drill was taked is the method for unclamping trigger, its essence is the motor of bone drill is stopped power supply.The problem that this method exists is: it is longer one, to stop the time to need, and with operator's action direct relation is arranged; Two, still have certain inertia that its maintenance is rotated after motor is stopped power supply.Therefore, traditional bone drill stop boring unreliable.The control that stops to bore among the present invention be system send stop boring control signal after, the short reverse signal of compole when system will send to motor, the inertia that utilizes the counter-rotating of this short time to offset original forward rotation.Guarantee that motor can stop operating accurately and rapidly.
Adopt ultrasonic measuring distance technology that drill bit 3 is pierced the degree of depth and measure in real time, at bone drill motor drill bit 3 stiff ends one ultrasonic transducer 1 is installed as shown in the figure, hyperacoustic transmit direction is parallel with drill bit 3.Intelligent control module 6 control ultrasonic transducers 1 touch on drill bit 3 tops of bone drill motor when skeleton or steel plate start drill bit 3 and send ultrasound wave, reflect when ultrasonic propagation skeleton or steel plate, and echo is back to acoustic wave transducer 1.Ultrasonic transducer 1 converts the mechanical energy of acoustic signals to the variation of electrical quantity, intelligent control module 6 is measured echo and is reached the time and send hyperacoustic time difference, and itself and the long-pending of hyperacoustic speed can be obtained ultrasonic transducer 1 to the distance between skeleton or the steel plate except that 2 again; When drill bit 3 stopped to bore, ultrasonic transducer 1 sent ultrasonic measurement once more and goes out distance between ultrasonic transducer and skeleton or the steel plate; The difference of twice distance is the skeleton degree of depth, can select the length of the screw of fixation steel plate according to the skeleton degree of depth.
Claims (6)
1, a kind of intelligent bone drill is characterized in that: the bone drill motor be provided with in strain-type torque sensor (2), speed probe or the pressure transducer any one, two kinds or three kinds of senser elements; On the bone drill motor, also be provided with the induced signal of embedded intelligence control module (6) receiving sensor spare collection and judge control bone drill motor.
2, intelligent bone drill according to claim 1, it is characterized in that: described strain gauge transducer (2) is made of four foil gauges (8), four foil gauges (8) are arranged on the same cross section of the annular metal member (7) on the bone drill motor body, with the angle of annular metal member (7) axis be ± 45 °.
3, intelligent bone drill according to claim 1 is characterized in that: described speed probe is made of Hall element (4) and metal reading code-disc (5); Metal is read the stiff end that code-disc (5) is installed on the drill bit (3) of bone drill motor, rotates with speed with drill bit (3), and metal reads to have on the code-disc (5) a plurality of circular holes to be positioned on the same circumference; Hall element (4) is installed on the front end of bone drill motor body, and the axis normal of Hall element (4) is read code-disc (5) in metal, and reads code-disc (5) with metal and intersect on the circumference at circular hole place.
4, intelligent bone drill according to claim 3 is characterized in that: described circular hole quantity is 12.
5, intelligent bone drill according to claim 1 is characterized in that: described pressure transducer places the bone drill motor internal.
6, intelligent bone drill according to claim 1 is characterized in that: the stiff end at the drill bit (3) of bone drill motor also is equipped with ultrasonic transducer (1), and hyperacoustic transmit direction is parallel with drill bit (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920127085U CN201384531Y (en) | 2009-04-21 | 2009-04-21 | Intelligent bone drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920127085U CN201384531Y (en) | 2009-04-21 | 2009-04-21 | Intelligent bone drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201384531Y true CN201384531Y (en) | 2010-01-20 |
Family
ID=41577052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920127085U Expired - Fee Related CN201384531Y (en) | 2009-04-21 | 2009-04-21 | Intelligent bone drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201384531Y (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102641155A (en) * | 2011-02-16 | 2012-08-22 | 中国康复研究中心 | Real-time positioning navigation instrument used in orthopedic operation |
| CN103976772A (en) * | 2014-05-27 | 2014-08-13 | 梁红所 | Bone drill capable of stopping rotating automatically |
| CN104546062A (en) * | 2015-01-26 | 2015-04-29 | 上海交通大学 | Bone drill with stopping function |
| CN104771202A (en) * | 2015-04-30 | 2015-07-15 | 青岛理工大学 | Nanofluid phase-change heat exchange type grinding device with online grinding temperature measuring function |
| CN104783862A (en) * | 2015-04-14 | 2015-07-22 | 魏东 | Auto-stop electric craniotomy drill |
| CN104939892A (en) * | 2015-06-29 | 2015-09-30 | 河南曙光健士医疗器械集团股份有限公司 | Medical brain drill |
| CN105310754A (en) * | 2015-02-04 | 2016-02-10 | 江苏怡龙医疗科技有限公司 | Constant-thrust and uniform-speed cutting orthopedic electric saw mechanism applicable to surgical robots |
| CN107157544A (en) * | 2017-06-15 | 2017-09-15 | 北京爱康宜诚医疗器材有限公司 | Medical swing saw |
| CN108685602A (en) * | 2017-04-07 | 2018-10-23 | 耿伟 | Drill control method and its system |
| 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 |
-
2009
- 2009-04-21 CN CN200920127085U patent/CN201384531Y/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102641155B (en) * | 2011-02-16 | 2014-11-26 | 中国康复研究中心 | Real-time positioning navigation instrument used in orthopedic operation |
| CN102641155A (en) * | 2011-02-16 | 2012-08-22 | 中国康复研究中心 | Real-time positioning navigation instrument used in orthopedic operation |
| CN103976772A (en) * | 2014-05-27 | 2014-08-13 | 梁红所 | Bone drill capable of stopping rotating automatically |
| CN103976772B (en) * | 2014-05-27 | 2016-03-23 | 梁红所 | Automatic stall formula bone drill |
| CN104546062A (en) * | 2015-01-26 | 2015-04-29 | 上海交通大学 | Bone drill with stopping function |
| CN105310754A (en) * | 2015-02-04 | 2016-02-10 | 江苏怡龙医疗科技有限公司 | Constant-thrust and uniform-speed cutting orthopedic electric saw mechanism applicable to surgical robots |
| CN104783862B (en) * | 2015-04-14 | 2017-04-12 | 魏东 | Auto-stop electric craniotomy drill |
| CN104783862A (en) * | 2015-04-14 | 2015-07-22 | 魏东 | Auto-stop electric craniotomy drill |
| CN104771202A (en) * | 2015-04-30 | 2015-07-15 | 青岛理工大学 | Nanofluid phase-change heat exchange type grinding device with online grinding temperature measuring function |
| CN104939892A (en) * | 2015-06-29 | 2015-09-30 | 河南曙光健士医疗器械集团股份有限公司 | Medical brain drill |
| CN108685602A (en) * | 2017-04-07 | 2018-10-23 | 耿伟 | Drill control method and its system |
| CN108685602B (en) * | 2017-04-07 | 2020-07-31 | 耿伟 | Drill control method and system thereof |
| CN107157544A (en) * | 2017-06-15 | 2017-09-15 | 北京爱康宜诚医疗器材有限公司 | Medical swing saw |
| 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 |
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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: 20100120 Termination date: 20150421 |
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| EXPY | Termination of patent right or utility model |