CN100500101C - B-ultrasonic electromagnetic mechanical fan scanning device - Google Patents
B-ultrasonic electromagnetic mechanical fan scanning device Download PDFInfo
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- CN100500101C CN100500101C CNB2007100626034A CN200710062603A CN100500101C CN 100500101 C CN100500101 C CN 100500101C CN B2007100626034 A CNB2007100626034 A CN B2007100626034A CN 200710062603 A CN200710062603 A CN 200710062603A CN 100500101 C CN100500101 C CN 100500101C
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Abstract
The invention discloses a B-ultrasonic electromagnetic mechanical fans scanning device which is characterized in that the scanning device is composed by a housing component comprising an outer bushing, a front bushing and a seal gasket, a micro-telescopic magnet component comprising a telescopic electromagnetic rod and a locking nut, a steering mechanism component of central axial movement comprising a central axis, a bearing group, a pin column, a lever, a hinge pin, an inner housing and a pressure board, a sensor component for alternator position feedback comprising a photoelectric encoder, a photoelectric code disc and a circuit board, a conversion connector component comprising a switch socket, a switch plug and an ultrasonic transducer probe, wherein, the housing component is connected with the steering mechanism component of central axial movement, the micro-telescopic magnet component is connected with the housing component, the sensor component for alternator position feedback is connected with the steering mechanism component of central axial movement, and the conversion connector component is connected with the steering mechanism component of central axial movement.
Description
One, technical field
The present invention relates to a kind of Type B ultrasonic electromagnetic mechanical fan scanning device, be used for the B mode ultrasound scan diagnosis of ophthalmology, belong to technical field of medical instruments.
Two, background technology
The mechanical sector scan device can be used for the B ultrasound Differential Diagnosis of ophthalmic and orbit diseases, as is used to diagnose diseases such as retina shedding, ophthalmic and orbital tumor, vitreous opacity, hemorrhage, retinopathy and intraocular foreign body.Because its cost is low, rate of scanning is higher (about 10Hz), have high cost performance, therefore be widely adopted within the eye with in the B ultrasound diagnostic instruments of orbit diseases, have broad application prospects.
But conventional linkage formula mechanical sector scan device all is based on the time method, promptly triggers single ultrasonic scanning process with uniform interval, finally forms a width of cloth two-dimensional ultrasound faultage image.The prerequisite of time method is that the pop one's head in process of fan-shaped shuttle-scanning swing of ultrasonic transduction is that ideal is at the uniform velocity swung.But the starting of any reciprocally swinging process, stop and commutating all needing the time, and the hunting range of ultrasonic transduction probe is little, hunting frequency is high, causes the at the uniform velocity swing of the theoretical state of in fact can't realizing ideal.And, because conventional linkage formula mechanical sector scan device motion complexity, the velocity of rotation of drive motors and the swing speed of connecting rod end are not linear in essence, so simply control the at the uniform velocity swing that the drive motors uniform rotation can not realize terminal ultrasonic transduction probe, so that ideal is at the uniform velocity swung this prerequisite and can't be guaranteed at all.Therefore, cause the true pendulum angle position of even interval in fact inhomogeneous, inaccurate, resolution is lower, and aliasing, smudgy appears in the image information that finally causes collecting, influence operator's diagnosis, serious consequence such as easily cause mistaken diagnosis, can't make a definite diagnosis.
Three, summary of the invention
For overcoming the above-mentioned shortcoming of traditional mechanical sector scan device, the object of the invention is to provide a kind of Type B ultrasonic electromagnetic mechanical fan scanning device, this device can be realized the scanning method based on accurate angle position information, change traditional time-based ultrasonic scanning method, its motion is succinct, assembly and adjustment is convenient, angle position feedback accuracy height, and cost is low, rate of scanning higher (about 10Hz), have high cost performance.
The object of the present invention is achieved like this, and a kind of Type B ultrasonic electromagnetic mechanical fan scanning device promptly is provided, and it should comprise at least: a casing assembly, in order to sealing, protector internal structure, and be convenient to operator's hand-held; One miniature telescoping electromagnetic iron component, in order to the original power source that provides ultrasonic transduction to pop one's head in and swing, and the swing frequency and the angle of control ultrasonic probe; One axis motion changement assembly swings the angle of carry-over moment and control swing in order to transfer miniature telescoping electromagnetic iron component to axis along the stretching motion of horizontal axis along vertical axis; One angle position feedback transducer assembly in order to gathering the accurate angular position information of axis motion changement pendulum angle, and differs 90 ° TTL square-wave pulse form with two-way angular position information is exported in real time; One adapter assembly is affixed on the axis of axis motion changement assembly in order to the ultrasonic transduction probe with the various SMC of meeting plug specifications.
Wherein, casing assembly links together by the female thread of anterior cannula and the female thread of trocar sheath and the external screw thread in the axis motion changement assembly respectively; And miniature telescoping electromagnetic iron component passes through hole one, by locking nut the eccentric end face in annular shaft shoulder end face and the casing assembly is clamped together again; Angle position feedback transducer assembly links together by two screws and axis motion changement assembly; The adapter assembly links together by the external screw thread of patchplug and the tapped through hole two in the axis motion changement assembly.
Wherein, casing assembly of the present invention, it should comprise a trocar sheath at least, there is an external cylindrical surface at the middle part thereafter, the hand-held and protection internal structure in order to the operator; One anterior cannula is in order to protect internal structure and to play sealing function; One diaphragm seal is in order to internal structure and external environment seal isolation.Wherein, the trocar sheath female thread is connected with external screw thread on the inner housing, and the anterior cannula female thread is connected with external screw thread on the inner housing; Rectangle narrow end surface on diaphragm seal and the anterior cannula bonds together.
Wherein, miniature telescoping electromagnetic iron component of the present invention, it should comprise at least: the minitype electromagnet of a power 4W, rated voltage 5V, external diameter Φ 12mm, in order to produce the original power source of probe swing; The electromagnetism expansion link of one diameter of phi 1.5mm produces stretching motion under the control of minitype electromagnet drives, finally this stretching motion drive probe swings; One locking nut is in order to be connected minitype electromagnet with other installing mechanism.Wherein, minitype electromagnet joins by locking nut and trocar sheath; The outer bar of electromagnetism expansion link and the four coaxial sockets of the through hole on the minitype electromagnet, and can be in through hole four freely rotate around self axis, the elastic slip that stroke is 0～3.5mm can under the control of minitype electromagnet, be done simultaneously.
Wherein, axis motion changement assembly of the present invention, it should comprise at least: an axis; One bearing group comprises two miniature bearings of upper bearing (metal) and lower bearing; One pin; One pull bar; One joint pin; One inner housing; One pressing plate.Wherein, the top dome of axis and bottom dome socket-connect with upper bearing (metal), lower bearing respectively, and embed respectively in the upper bearing (metal) counterbore and semi-circular recesses of inner housing, and simultaneously pressing plate is connected on the inner housing by screw, with fixing lower bearing.Pin passes the through hole two on the pull bar, and is inserted in the tapped through hole three of axis, and itself and axis axis parallel, and apart from axis axle center 3.5mm; Pull bar adopts articulated manner to link to each other by joint pin with the electromagnetism expansion link.Wherein, the axis spacing of the through hole two on pull bar pin-and-hole and the pull bar is 12.13mm.
Wherein, angle position feedback transducer assembly of the present invention, it should comprise at least: a photoelectric encoder, its segmentation multiple is * 8, resolution is 13200CPR, in order to the accurate angular position information of the axis swing of reading photoelectric code disk feedback, and differ 90 ° TTL pulse signal form output with two-way; One photoelectric code disk, its internal diameter are Φ 6.35mm, and external diameter is Φ 12mm, and resolution is 1650/ commentaries on classics, and in order to be fixed together with axis, swing coaxial with it can be fed back the accurate angular position information of axis swing; One circuit board.Wherein, photoelectric encoder and circuit board weld together, and place on the concave plane of inner housing, and fix by screw; Simultaneously, photoelectric code disk is mutually bonding with the fan-shaped circular arc end face of axis, is positioned at the below of circuit board and photoelectric encoder.
Wherein, adapter assembly of the present invention, it should comprise at least: a multi-tap, its front portion has a female thread, and it meets the SMC specification, and afterbody has an external screw thread, in order to connect the ultrasonic transduction probe; One patchplug, its front portion has a female thread, and afterbody has an external screw thread, in order to connect multi-tap; One ultrasonic transduction probe.Wherein, ultrasonic transduction probe links to each other with the SMC external screw thread of multi-tap by ultrasonic transduction probe afterbody, and multi-tap links to each other by multi-tap afterbody external screw thread with patchplug, and patchplug afterbody external screw thread links to each other with tapped through hole two on the axis.So far, also swing thereupon of ultrasonic transduction probe when axis swings.
A kind of Type B ultrasonic electromagnetic mechanical fan scanning device of the present invention, its advantage and effect are: the ultrasonic transduction probe that any patchplug meets the SMC specification can be installed.It can change the angle of ultrasonic probe, thereby the sensing orientation of ultrasonic beam is changed fast, realizes that frequency range 0.1～10Hz, the angle amplitude of oscillation are the fan-shaped oscillatory scanning of high speed machine of ± 30 ° (～± 45 °).In the high-velocity scanning swing, output synchronously is the ultrasonic transduction probe pendulum angle positional information of unit with 0.05 °, in order to trigger the single sweep operation process.The final two-dimensional ultrasound faultage image that forms a width of cloth by the vertical covering of the fan of ultrasonic transduction probe swaying direction decision is referred to as the fan sweeping faultage image.
Type B ultrasonic electromagnetic mechanical fan scanning device compact conformation, succinct is convenient to install, debug.The Type B ultrasonic electromagnetic mechanical fan scanning device can realize being used for the B ultrasound Differential Diagnosis of ophthalmic and orbit diseases.As be used to diagnose diseases such as retina shedding, ophthalmic and orbital tumor, vitreous opacity, hemorrhage, retinopathy and intraocular foreign body.And Type B ultrasonic electromagnetic mechanical fan scanning device cost is low, cost performance is high, can be used as a conventional clinical ophthalmology inspection, diagnostic device, is convenient to popularize, promote in big-and-middle-sized hospital, has vast market prospect.
Four, description of drawings
Figure 1A is a kind of Type B ultrasonic electromagnetic mechanical fan scanning device of the present invention monnolithic case figure.
Figure 1B is a kind of Type B ultrasonic electromagnetic mechanical fan scanning device of the present invention outside drawing.
Fig. 1 C removes internal structure axle side sketch map after trocar sheath 201, anterior cannula 210, the diaphragm seal 211 for Figure 1A.
Fig. 1 D removes internal structure rearview after trocar sheath 201, anterior cannula 210, the diaphragm seal 211 for Figure 1A.
Fig. 1 E is the outside drawing of Fig. 1 C.
Fig. 2 is a kind of Type B ultrasonic electromagnetic mechanical fan scanning device of the present invention internal structure sketch map.
Fig. 3 is sidelong big sketch map for the axle of trocar sheath 201 among Fig. 2.
Fig. 4 is sidelong big sketch map for the axle of pull bar 205 among Fig. 2.
Fig. 5 A, 5B are sidelong big sketch map for the axle of inner housing 206 among Fig. 2.
Fig. 6 is sidelong big sketch map for the axle of axis 219 among Fig. 2.
Fig. 7 is sidelong big sketch map for the axle of photoelectric code disk 213 among Fig. 2.
Fig. 8 is sidelong big sketch map for the axle of patchplug 221 among Fig. 2.
Fig. 9 is sidelong big sketch map for the axle of multi-tap 222 among Fig. 2.
Figure 10 is sidelong big sketch map for the axle of Fig. 2 center platen 207.
Figure 11 is the axle side section enlarged diagram of anterior cannula 210 among Fig. 2.
Figure 12 is sidelong big sketch map for the axle of minitype electromagnet 202 among Fig. 2.
Figure 13 is sidelong big sketch map for the axle of electromagnetism expansion link 204 among Fig. 2.
Figure 14 is sidelong big sketch map for the axle of pin 218 among Fig. 2.
Number in the figure is described as follows:
The miniature telescoping electromagnetic iron component of I casing assembly II III axis motion changement assembly
IV angle position feedback transducer assembly V adapter assembly
201 trocar sheaths, 202 minitype electromagnets, 203 locking nuts
204 electromagnetism expansion links, 205 pull bars, 206 inner housings
207 pressing plates, 208 screws, 210 anterior cannula
211 diaphragm seals, 212 joint pins, 213 photoelectric code disks
215 circuit boards, 216 photoelectric encoders, 217 upper bearing (metal)s
218 pins, 219 axis, 220 lower bearings
221 patchplugs, 222 multi-taps, 223 ultrasonic transductions probe
301 external cylindrical surfaces, 302 eccentric end face 303 through holes one
304,802,902,1102 female threads, 507,801,901,1401 external screw threads
305 annular narrow end surface 306 annular end faces one 401 rectangular recess
402 pull bar pin-and-holes, 403 cylindrical bars, 404 through holes two
501 concave planes, 502 tapped through holes, one 503 upper bearing (metal) counterbores
504 protruding plane 505 semi-circular recesses, 506 screwed holes
508 dome ring end faces, 509 annular end faces, 2 601 top domes
605 semicircle boss, 606 fan-shaped circular arc end face 607 curved ends
608 times annular dome 609 bottom domes 610 tapped through holes three
701 arc grooves, 702 90 degree circular arc end faces, 703 grating fringes
704 domes, 1001 semi-circular recesses, 1002 through holes three
1003 tapped through holes, 4 1101 rectangle narrow end surfaces, 1103 annular end faces three
1201 annular shaft shoulder end face, 1202 through holes, 4 1301 through holes five
1302 outer bar 1402 straight-bars
Five, the specific embodiment
Describe embodiment of the present invention in detail below in conjunction with accompanying drawing.
The present invention relates to a kind of Type B ultrasonic electromagnetic mechanical fan scanning device, it comprises: a casing assembly I, in order to sealing, protector internal structure, and be convenient to operator's hand-held; One miniature telescoping electromagnetic iron component II, in order to the original power source that provides ultrasonic transduction to pop one's head in and swing, and the swing frequency and the angle of control ultrasonic probe; One axis motion changement assembly III, in order to miniature telescoping electromagnetic iron component is converted to axis along the swinging of himself vertical axis along the stretching motion of horizontal axis, and the angle of carry-over moment and control swing; One angle position feedback transducer assembly IV in order to gathering the accurate angular position information of axis motion changement pendulum angle, and differs 90 ° TTL square-wave pulse form with two-way angular position information is exported in real time; One adapter assembly V is affixed on the axis motion changement assembly in order to the ultrasonic transduction probe with the various SMC of meeting specifications.(Figure 1B, 1C and 1D, the schematic appearance of Fig. 1 C is shown in Fig. 1 E)
Wherein, casing assembly I M16 female thread 304 and the M16 external screw thread 507 among the axis motion changement assembly III of the M16 female thread 1102 by anterior cannula 210 and trocar sheath 201 link together (Figure 1A, 1B and Fig. 5 A) respectively; And miniature telescoping electromagnetic iron component II passes eccentric through-hole 1, again by locking nut 203 with annular shaft shoulder end face 1201 and eccentric end face 302 among the casing assembly I be clamped together (Fig. 2, Fig. 3 and Figure 12); Angle position feedback transducer assembly IV is by two screws 208 and two M1.6 tapped through holes 1 among the axis motion changement assembly III link together (Fig. 2 and Fig. 5); Adapter assembly V is by M2 external screw thread 801 and M2 tapped through hole 2 604 among the axis motion changement assembly III link together (Fig. 2, Fig. 8 and Fig. 6).
Described casing assembly I should comprise a trocar sheath 201 at least, and there is an external cylindrical surface 301 at the middle part thereafter, the hand-held and protection internal structure in order to the operator; One anterior cannula 210 is in order to protect internal structure and to play sealing function; One diaphragm seal 211 is in order to internal structure and external environment seal isolation.The eccentric through-hole 1 that it is Φ 10mm that there is a diameter trocar sheath 201 inside, eccentric distance are 1mm; M16 female thread 304 on the trocar sheath 201 is connected with M16 external screw thread 507 on the inner housing, and annular narrow end surface 305 is overlapped with internal diameter Φ 14.5 annular end faces 2 509; Anterior cannula M16 female thread 1102 is connected with M16 external screw thread 507, and external diameter Φ 18 annular end faces 3 1103 are overlapped with internal diameter Φ 14.5 annular end faces 1; Diaphragm seal 211 bonds together with rectangle narrow end surface 1101.(Figure 1A, Fig. 3, Fig. 5 A and 5B, Figure 11)
Miniature telescoping electromagnetic iron component II of the present invention comprises: the minitype electromagnet 202 of a power 4W, rated voltage 5V, external diameter Φ 12mm, in order to produce the original power source of probe swing; The electromagnetism expansion link 204 of one diameter of phi 1.5mm; One locking nut is in order to be connected minitype electromagnet with other installing mechanism.The outer bar 1302 of the diameter of phi 1.5mm of electromagnetism expansion link 204 and the 4 1202 coaxial sockets of the central through hole of minitype electromagnet 202, and can be in central through hole 4 1202 freely rotate around self axis; Simultaneously, stroke was the telescopic slide of 3.5mm before and after electromagnetism expansion link 204 can be done under the control of minitype electromagnet 202.(Fig. 2, Figure 12 and Figure 13)
Axis motion changement assembly III of the present invention should comprise at least: an axis 219; One bearing group comprises 220 two rolling bearings of upper bearing (metal) 217 and lower bearing; One pin, 218, one pull bar 205, one joint pins, 212, one inner housings 206 and pressing plates 207.(Fig. 2)
Wherein, a segment length is respectively arranged is that 2mm, diameter are top dome 601 and the bottom dome 609 of Φ 1.5mm at the two ends up and down of axis 219.Top dome 601 and bottom dome 609 axial spacing 10.8mm.It is 0.4mm that one section thickness is arranged in the bottom of top dome 601, and diameter is the last annular dome 602 of Φ 2mm; One section thickness is arranged at the top of bottom dome 609 is 0.4mm, and diameter is the following annular dome 608 of Φ 2mm.Apart from axis 219 lower shaft end 2.6mm places a radius being arranged is that R4mm, thickness are the semicircle boss 605 of 1.3mm.A M0.4 tapped through hole 3 610 is arranged on the semicircle boss 605, and the central axis distance of M0.4 tapped through hole 3 610 axis and semicircle boss 605 is 3.5mm.Also have a fan-shaped circular arc end face 606 on the semicircle boss 605, fan-shaped circular arc end face 606 internal diameters are R3.175mm, and thickness is 1mm, and fan-shaped arc angle is 90 °.With fan-shaped circular arc end face 606 is perpendicular one section curved end 607 arranged, its thickness is 0.3mm, and the outward flange radius is R4mm.The middle part of axis 219 also has a cydariform boss 603, and there is a M2 tapped through hole 2 604 at its center.
The top dome 601 and the external diameter of axis 219 are Φ 4mm, internal diameter is Φ 1.5mm, thickness is upper bearing (metal) 217 sockets of 2mm, it is axially by last annular dome 602 location, the bottom dome 609 and the external diameter of axis are Φ 4mm, internal diameter is Φ 1.5mm, and thickness is lower bearing 220 sockets of 2mm, and it is axially by down annular dome 608 location.(Fig. 6)
501, one diameters in one concave plane are arranged at the top of inner housing 206 is Φ 4mm, and the degree of depth is the upper bearing (metal) counterbore 503 of 2mm, the dome ring end face 508 that an external diameter is arranged at its top is Φ 5mm, and the endoporus of dome ring end face 508 is Φ 3mm; Two M1.6 tapped through holes 1 are arranged above the concave plane 501; One protruding plane 504 is arranged at the bottom of inner housing 206, the semi-circular recesses 505 that a radius is arranged on it is R2mm.There is the screwed hole 506 of two M0.4 504 front portions, protruding plane.The afterbody of inner housing 206 has one section M16 external screw thread 507.(Fig. 5 A, 5B)
The axis 219 that is socketed with upper bearing (metal) 217 and lower bearing 220 is embedded inner housing 206, the upper bearing (metal) 217 that is socketed on the axis 219 is entered in the bearing counterbore 503, and be dome ring end face 508 axial location of Φ 3.5mm by internal diameter; Meanwhile, lower bearing 220 enters in the semi-circular recesses 505.
It is Φ 4mm that pressing plate 207 has an internal diameter, and thickness is that 1001, two diameters of semi-circular recesses of 2mm are 3 1002, M0.4 tapped through hole 4 1003 of Φ 0.6mm through hole.(Figure 10)
Then, the semi-circular recesses 1001 of pressing plate 207 is located with the cylindrical of lower bearing 220, and pass two Φ 0.6mm through holes 3 1002 on the pressing plate 207 with two M0.4 screws 208, be screwed in the M0.4 screwed hole 506 on the inner housing 206, the M0.4 tapped through hole 4 1003 that the screw 208 of reuse M0.4 screws on the pressing plate 207 is radially locked lower bearing 220.
The cylindrical bar 403 that it is Φ 0.8mm that there is one section diameter at the middle part of pull bar 205.One end of pull bar 205 has a wide 1mm, the rectangular recess 401 of dark 1mm, and it is that Φ 0.6mm pull bar pin-and-hole 402 passes rectangular recess 401, the through hole 2 404 that it is Φ 0.6mm that the bulb of the other end partly has a diameter that a diameter is arranged on it.Pull bar pin-and-hole 402 is 12.13mm with the axis spacing of through hole 2 404.(Fig. 4)
The afterbody axle head of electromagnetism expansion link 204 is put into the rectangular recess 401 of pull bar 205, be Φ 0.5mm with diameter again, the joint pin 212 of length 2mm passes the pull bar pin-and-hole 402 of pull bar 205, pass the through hole 4 1301 of electromagnetism expansion link 204 tail portion again, realize that pull bar 205 and the electromagnetism bar 204 that contracts is hinged.Then, the through hole 2 404 of pull bar 205 is penetrated the straight-bar 1402 of the diameter of phi 0.6mm of pin 218; The M0.4 external screw thread 1401 that with pin 218 lower end length is 1.3mm again screws in the M0.4 tapped through hole 3 610 of axis 219.(Figure 14)
Angle position feedback transducer assembly IV of the present invention should comprise at least: a photoelectric encoder 216; One photoelectric code disk 213; One circuit board 215.Wherein, it is Φ 6.35mm arc groove 701 that there is one section internal diameter at the middle part of photoelectric code disk 213, and having on one 90 degree circular arc end face 702,90 degree circular arc end faces 702 perpendicular to Φ 6.35mm arc groove 701 has grating fringe 703, and resolution is 1650 pulse/commentaries on classics.There is one section external diameter Φ 12mm dome 704 outside of photoelectric code disk 213.The Φ 6.35mm arc groove 701 of photoelectric code disk 213 navigates on the fan-shaped circular arc end face 606 of axis 219, and 90 degree circular arc end faces 702 overlap with the curved end 607 of axis 219, realize photoelectric code disk 213 and axis 219 coaxial assemblings, and bond to together.Photoelectric encoder 216 welds together with circuit board 215, puts on the concave plane 501 of inner housing 206, and with two screws 208 two tapped through holes 1 on the concave plane 501 in circuit board 215 and the inner housing 206 is linked together.(Fig. 2 and Fig. 7)
Adapter assembly of the present invention comprises: a multi-tap 222; One patchplug 221; One ultrasonic transduction probe 223.Wherein, it is the M4 external screw thread 901 of 4mm that the afterbody of multi-tap 222 has a segment length, and there is a SMC female thread 902 front portion.It is the M2 external screw thread 801 of 2.5mm that the afterbody of patchplug 221 has a segment length, the M4 female thread 802 that it is 4mm that there is a degree of depth front portion.Then, the M4 external screw thread 901 of multi-tap 222 afterbodys and the M4 female thread 802 of patchplug 221 are linked together, again in the M2 tapped through hole 2 604 on the M2 external screw thread 801 screw-in axis 219 of patchplug 221 afterbodys.The SMC of 223 afterbodys of at last ultrasonic transduction being popped one's head in screws in the multi-tap 222 forward SMC female threads 902.So far, also swing thereupon of ultrasonic transduction probe 223 when axis 219 swings.(Fig. 2, Fig. 8 and Fig. 9)
When control minitype electromagnet 202 driving electromagnetism expansion links 204 stretched out, electromagnetism expansion link 204 moved forward by joint pin 212 pushing drawing rods 205, and pull bar 205 promotes axis 219 around himself vertical axis clockwise direction swing (the right pendulum) by pin 218 again.Axis 219 drives patchplug 221 by M2 tapped through hole 2 604 again, and patchplug 221 drives multi-tap 222 again, finally drives ultrasonic transduction probe 223 swing clockwise (right pendulum).When control minitype electromagnet 202 drives 204 withdrawals of electromagnetism expansion links, repeat said process again, drive ultrasonic transduction 223 counter-clockwise swings (left side pendulum) of popping one's head in.Therefore, when control minitype electromagnet 202 drove electromagnetism expansion links 204 and does the stretching motion of stroke 0～3.5mm frequently with 10Hz, 219 of axis drove terminal ultrasonic transductions probe 223 and do with the 10Hz frequency and swing.
No matter axis 219 is swung or counter-clockwise swing clockwise, with the also swing synchronously of the axis 219 coaxial photoelectric code disks that are connected 213, the photoelectric encoder 216 that suitable, counterclockwise (right, a left side) swing information of photoelectric code disk 213 is attached on the inner housing 206 is gathered, is handled, with the square wave TTL impulse form output of 90 ° of two-way mutual deviations, form the swing position feedback information of terminal ultrasonic transduction 223.
Claims (10)
1. Type B ultrasonic electromagnetic mechanical fan scanning device, it is characterized in that: it comprises:
One casing assembly, it is made up of a trocar sheath, an anterior cannula and a diaphragm seal; Wherein, trocar sheath links to each other by inner housing with anterior cannula, and the rectangle narrow end surface on diaphragm seal and the anterior cannula bonds together;
One miniature telescoping electromagnetic iron component, it is made up of a minitype electromagnet, an electromagnetism expansion link and a locking nut; Wherein, locking nut is enclosed within on the screw thread of minitype electromagnet, the outer bar of electromagnetism expansion link and the four coaxial sockets of the through hole of minitype electromagnet;
One axis motion changement assembly, it is made up of an axis, a bearing group, a pin, a pull bar, a joint pin, described inner housing and a pressing plate; Wherein, the top dome of axis and bottom dome respectively with bearing group in upper bearing (metal), lower bearing socket-connect, and embed respectively in the upper bearing (metal) counterbore and semi-circular recesses of inner housing, pressing plate is connected on the inner housing by screw simultaneously, with fixing lower bearing, pin passes the through hole two on the pull bar, and is screwed in the tapped through hole three of axis, and pull bar links to each other by joint pin with the electromagnetism expansion link;
One angle position feedback transducer assembly, it is made up of a photoelectric encoder, a photoelectric code disk and a circuit board; Wherein, photoelectric encoder and circuit board weld together, and place on the concave plane of inner housing, and fix by screw; Simultaneously, photoelectric code disk is mutually bonding with the fan-shaped circular arc end face of axis, is positioned at the below of photoelectric encoder;
One adapter assembly, it is made up of a multi-tap, a patchplug and ultrasonic transduction probe; Wherein, ultrasonic transduction probe links to each other with the SMC external screw thread of multi-tap by ultrasonic transduction probe afterbody, and multi-tap links to each other with the external screw thread of patchplug by the multi-tap afterbody, and the external screw thread of patchplug afterbody links to each other with tapped through hole two on the axis;
Wherein, casing assembly respectively the female thread of the female thread by anterior cannula and trocar sheath link to each other with external screw thread in the axis motion changement assembly; And miniature telescoping electromagnetic iron component links to each other with casing assembly by locking nut; Angle position feedback transducer assembly is installed on axis motion changement component internal; The adapter assembly links together by screw thread and axis motion changement assembly.
2. a kind of Type B ultrasonic electromagnetic mechanical fan scanning device as claimed in claim 1 is characterized in that this minitype electromagnet power is 4W, rated voltage 5V, external diameter Φ 12mm.
3. a kind of Type B ultrasonic electromagnetic mechanical fan scanning device as claimed in claim 1 is characterized in that, the connected mode that minitype electromagnet and shell body adopt screw thread to clamp.
4, a kind of Type B ultrasonic electromagnetic mechanical fan scanning device as claimed in claim 1, it is characterized in that, the axis two ends are respectively equipped with top dome and bottom dome, and the bottom of top dome is provided with annular dome on, and the top of bottom dome is provided with annular dome; The top of annular dome is provided with half boss platform down, is provided with a tapped through hole three and a fan-shaped circular arc end face on the semicircle boss; One cydariform boss is arranged at semicircle boss top, is provided with a tapped through hole two on the cydariform boss.
5. a kind of Type B ultrasonic electromagnetic mechanical fan scanning device as claimed in claim 4 is characterized in that, tapped through hole three is 3.5mm apart from the distance in axis axle center, and fan-shaped circular arc end face internal diameter is Φ 6.35mm, and the degree of depth is 1mm, and angle is 90 °.
6. a kind of Type B ultrasonic electromagnetic mechanical fan scanning device as claimed in claim 1 is characterized in that the axis spacing of the through hole two on pull bar pin-and-hole and the pull bar is 12.13mm, and pull bar adopts articulated manner to be connected with pin.
7. a kind of Type B ultrasonic electromagnetic mechanical fan scanning device as claimed in claim 1, it is characterized in that, inner housing top is provided with a concave plane, the concave plane is provided with two tapped through holes one, inner housing top also has a upper bearing (metal) counterbore, upper bearing (metal) counterbore end is provided with a dome ring end face, in order to the location upper bearing (metal); One protruding plane is arranged at the inner housing bottom, and a semi-circular recesses is arranged on it, and protruding planar front portion has two screwed holes; The afterbody of inner housing has an external screw thread.
8. a kind of Type B ultrasonic electromagnetic mechanical fan scanning device as claimed in claim 1 is characterized in that, photoelectric encoder segmentation multiple is * 8, and resolution is 13200CPR, is output as two-way and differs the square-wave pulse signal that 90 °, level meet TTL.
9. a kind of Type B ultrasonic electromagnetic mechanical fan scanning device as claimed in claim 1 is characterized in that the internal diameter of photoelectric code disk is Φ 6.35mm, and external diameter is Φ 12mm, and resolution is 1650/ commentaries on classics.
10. a kind of Type B ultrasonic electromagnetic mechanical fan scanning device as claimed in claim 1 is characterized in that the female thread of multi-tap meets the SMC specification.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2007100626034A CN100500101C (en) | 2007-01-11 | 2007-01-11 | B-ultrasonic electromagnetic mechanical fan scanning device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100626034A CN100500101C (en) | 2007-01-11 | 2007-01-11 | B-ultrasonic electromagnetic mechanical fan scanning device |
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| CN101219060A CN101219060A (en) | 2008-07-16 |
| CN100500101C true CN100500101C (en) | 2009-06-17 |
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|---|---|---|---|---|
| CN102068282B (en) * | 2010-11-26 | 2012-07-18 | 温州医学院眼视光研究院 | Sinusoidal function-based linear scanning and emission control method for ultrasound biomicroscopes |
| CN109717902B (en) * | 2019-01-23 | 2024-02-23 | 广州医科大学附属第二医院 | Swing type abdominal cavity ultrasonic probe and using method thereof |
| CN112971858B (en) * | 2021-04-23 | 2021-07-27 | 广东恒腾科技有限公司 | Medical ultrasonic probe multi-degree-of-freedom driving device |
| CN116058870B (en) * | 2023-03-06 | 2023-06-13 | 深圳英美达医疗技术有限公司 | Ultrasonic data processing method and device, imaging system and readable storage medium |
-
2007
- 2007-01-11 CN CNB2007100626034A patent/CN100500101C/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN101219060A (en) | 2008-07-16 |
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