CN103876760A - Breast X-ray radiography system and pressing device - Google Patents
Breast X-ray radiography system and pressing device Download PDFInfo
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- CN103876760A CN103876760A CN201310638179.9A CN201310638179A CN103876760A CN 103876760 A CN103876760 A CN 103876760A CN 201310638179 A CN201310638179 A CN 201310638179A CN 103876760 A CN103876760 A CN 103876760A
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Abstract
The invention relates to a breast X-ray radiography system and a pressing device. The pressing device of the breast X-ray radiography system comprises a pressing plate, guide rails and a pressing support, wherein the pressing support supports a pressing plate to move along the guide rails. The pressing device further comprises an electrified brake clutch, a blackout brake clutch, a first transmission, a second transmission mechanism, a lead screw and a lead screw nut, wherein the first transmission mechanism is in the control of the electrified brake clutch, the second transmission mechanism is in the control of the blackout brake clutch, the lead screw is arranged in parallel to the guide rails, and the lead screw nut surrounds the lead screw and is coaxial with the same. The lead screw nut and the pressing support are relatively static along the guide rails, the lead screw nut and the lead screw can relatively rotate, the first transmission mechanism and the lead screw nut are reciprocally driving and driven parts, and the second transmission mechanism and the lead screw are reciprocally driving and driven parts. Pressing action required in the process of breast X-ray radiography can be generated, and more proper pressing actions can be provided.
Description
Technical field
The present invention relates to imaging system, particularly a kind of [Dan of mammary gland X ray photographing system and possess a kind of mammary gland X ray photographing system of this [Dan.
Background technology
At present, mammary gland X ray photographing system is widely used in the examination of mastopathy.The mammary gland X ray photographing system of prior art generally comprises following ingredient:
Camera mounting (integrated high voltage generator), digital detector, head (comprising X ray bulb and beam-defining clipper), [Dan, detector and image processing system;
Wherein, high tension generator produces high pressure, X ray bulb produces X ray under high-pressure situations, X ray sees through testee after collimating by beam-defining clipper and projects detector, detector changes the X ray signal receiving into digital signal, and by image processing system processing, form visual two dimensional image.Before exposure is prepared, doctor need to put position according to different positions, and pendulum position completes rear udder attachment and is organized between [Dan plate for forcing and detector dash receiver by suitable oppressive force clamping, and after end exposure, plate for forcing lifts, and unclamps breast tissue.
Based on above-mentioned, owing to needing that in mammary X-ray camera chain the reference object relevant to mammary gland taken, this reference object may relate to breast tissue.In the time that breast tissue is taken, it is very important ingredient in mammary X-ray imaging program that breast tissue is carried out to suitable pressing action.The main purpose of pressing action is to reduce regularly mammary gland thickness, is beneficial to x-ray bundle and is more prone to from subcutaneous area to breastwork wall and penetrates regularly.Pressing action specifically has following meaning:
Reduce the distance of mammary gland to panadaptor, reduced geometric unsharpness, spatial resolution is improved;
Structure in mammary gland is separated, reduce the overlapping and false positive that causes of the unclear false-negative probability of bringing of pathological changes image fog or normal structure;
Making mammary gland open and flat is the structure of bidimensionality more, thereby puies forward highdensity concordance;
Owing to making reference object (as asymmetric tissue and cyst etc.) bear pressure, can contribute to distinguish the optimum structure of low-density and the highdensity malignant change of less pressure that can bear larger pressure;
Also can reduce the needed mammary gland Average Glandular Dose of suitable exposure, scattered rays reduces simultaneously, has improved contrast;
Can fix mammary gland, reduce the probability that produces motion blur, make breast structure more near image receiving plane simultaneously, improve how much sharpnesses of image.
Mammary X-ray camera chain adopts described [Dan to realize above-mentioned pressing action.A kind of typical electronic [Dan comprises: the bracing frame of plate for forcing, described plate for forcing and motor.Described plate for forcing is transparent organic glass, and plate for forcing bracing frame is metalwork.The bracing frame of plate for forcing and described plate for forcing is connected by screw fastening, forms one.Under the effect of the electric driving force providing at motor, [Dan can carry out suitable pressing action to the reference object relevant to mammary gland.At least there is following defect in the electronic [Dan of prior art: has enough oppressive forces, but fine adjustments cannot be provided, cause described [Dan cannot provide mammary X-ray photographic process required suitable pressing action.
Summary of the invention
The technical problem that technical solution of the present invention solves is: how for breast X-ray photographic process provides more suitable pressing action.
In order to solve the problems of the technologies described above, technical solution of the present invention provides a kind of [Dan of mammary gland X ray photographing system, comprise plate for forcing, guide rail and support the compressing support that described plate for forcing moves along described guide rail, the [Dan of described mammary gland X ray photographing system also comprises energising brake clutch, power interruption braking clutch, is limited by the first drive mechanism of described energising brake clutch, is limited by the second drive mechanism of described power interruption braking clutch, with the juxtaposed leading screw of described guide rail and around described leading screw the screw-nut coaxial with described leading screw; Described screw-nut is relative static along described guide rail with compressing support, and described screw-nut can rotate relatively with leading screw; Described the first drive mechanism and described screw-nut principal and subordinate's moving part each other, described the second drive mechanism and described leading screw principal and subordinate's moving part each other.
Optionally, described the first drive mechanism comprise through the rotating shaft of described energising brake clutch, moved in the worm screw of described rotating shaft and with the worm gear of described worm screw adaptation, described worm gear can be around the axis of described leading screw relative to rotating still with described screw-nut.
Optionally, described the first drive mechanism also comprise be arranged at described rotating shaft arbitrary end torque limiting apparatus, be arranged at the belt wheel of described worm screw arbitrary end and make the connection belt of described torque limiting apparatus and belt wheel transmission.
Optionally, described compressing support comprises plate for forcing fixture and Mobile base, described Mobile base comprises first slide that can slide on described guide rail and the second slide and is connected the connecting portion of described the first slide and the second slide, described leading screw runs through described connecting portion, and described screw-nut is arranged in described connecting portion rotationally.
Optionally, the [Dan of described mammary gland X ray photographing system also comprises worm gear mount pad, and described connecting portion is provided with the bearing in bearing cross hole and bearing cross hole; Described worm gear mount pad is arranged in described bearing cross hole rotationally by described bearing, and described leading screw runs through described worm gear mount pad, and described screw-nut embeds described worm gear mount pad inside to coordinate with the leading screw that runs through described worm gear mount pad; Described worm gear and described worm gear mount pad are fixed.
Optionally, described screw-nut embeds described worm gear mount pad so that described screw-nut is arranged at described bearing cross hole inner chamber, described worm gear and described worm gear mount pad is fixed so that described worm gear is exposed to bearing cross hole outside.
Optionally, described Mobile base also comprises the first open stand extending to form from described Mobile base one end and the second open stand extending to form from the described Connection Block other end, described the first open stand comprises relative the first side wall and the second sidewall, described the second open stand comprises the 3rd relative sidewall and the 4th sidewall, and described energising brake clutch is arranged at described the first side wall; Described rotating shaft is installed between described the first side wall and the second sidewall, and described worm screw is installed between described the 3rd sidewall and the 4th sidewall.
Optionally, described the first drive mechanism also comprise be arranged at described the second sidewall torque limiting apparatus, be arranged at the belt wheel of described the 4th sidewall and make the connection belt of described torque limiting apparatus and belt wheel transmission, described rotating shaft is connected by described torque limiting apparatus, belt wheel and connection belt with worm screw.
Optionally, described energising brake clutch comprises first rolling disc that can rotate with described rotating shaft.
Optionally, described the second drive mechanism comprises driven driving shaft of when energising, and described driving shaft is through described power interruption braking clutch, and described leading screw is double does described driving shaft.
Optionally, the [Dan of described mammary gland X ray photographing system also comprises the first supporting seat and the second supporting seat, and described guide rail and leading screw are arranged between described the first supporting seat and the second supporting seat, and described power interruption braking clutch is arranged at described the first supporting seat.
Optionally, comprise can be with the second rolling disc of described drive shaft turns for described power interruption braking clutch.
Optionally, the [Dan of described mammary gland X ray photographing system also comprises the drive motors that can drive described leading screw to rotate, and described drive motors is arranged at described the second supporting seat.
In order to solve the problems of the technologies described above, technical solution of the present invention also provides a kind of mammary gland X ray photographing system, comprise frame, X-ray tube, [Dan as above and X ray dash receiver, described guide rail is arranged in described frame, and described plate for forcing is fixed on described compressing support; Wherein, described plate for forcing is arranged between described X-ray tube and X ray dash receiver, and described plate for forcing and X ray dash receiver are for being oppositely arranged.
The beneficial effect of technical solution of the present invention is at least:
By adaptive leading screw and screw-nut, make [Dan in the time realizing pressing action, can switch the rotation status of leading screw and screw-nut, thereby the electronic compressing pattern of controlled [Dan processed and the manually switching of compressing pattern, realized the electronic compressing pattern of [Dan and manual compressing pattern integral structure; Technical solution of the present invention can provide enough oppressive forces for Clinical Photography based on the electronic compressing pattern of [Dan, can provide the fine adjustments of oppressive force for Clinical Photography in the pattern of manually oppressing based on [Dan again, for mammography process provides suitable and accurate pressing action.
The first drive mechanism that technical solution of the present invention links with described screw-nut when the energising pair respectively by energising brake clutch and power interruption braking clutch locks, pair lock with the second drive mechanism of described lead screw linkage during in power-off, realizes freely switching between the electronic compressing pattern of [Dan and manually compressing pattern; Can only use technical solution of the present invention a kind of oppress pattern or combine use two kinds of compressing patterns of technical solution of the present invention the photographic process of mammary gland or other bodies of gland to be carried out to the compressing of reference object, can meet the compressing requirement of various bodies of gland, ensure comfortable, the safety and reliable of compressing process.
In possibility, the first drive mechanism of technical solution of the present invention also comprises that the torque limiting apparatus and the endless screw-worm gear transmission that are arranged at described rotating shaft pay combination, by braking, the control of torque limiting apparatus to oppressive force and the transmission of endless screw-worm gear group of power interruption braking clutch, can prevent that [Dan from, being manually subject to excessive oppressive force because maloperation causes person under inspection's the body of gland of being pressed under compressing pattern, ensureing person under inspection's safety.Consider by the person under inspection's of mammary gland X ray photographing system safety, what compression mechanism provided must not be greater than oppressive force threshold value to the oppressive force of reference object, described oppressive force threshold value generally has miscellaneous stipulations, in another possibility, can regulation oppressive force threshold value be 300N.
In possibility, described compressing support also comprises the Mobile base that can slide on described guide rail, in the process of manually oppressing in enforcement, by the reciprocating action of worm gear, Mobile base can move back and forth along guide rail, also oppresses support and moves back and forth along guide rail, and do not need [Dan to carry out extra reset operation, can make plate for forcing move to the position that system is specified, so that doctor starts pressing action next time easily, reduce the loaded down with trivial details of operation.
In possibility, described compressing support-moving seat also comprises the first open stand and the second open stand that extend to form, described the first open stand and the second open stand can be in order to fix the first drive mechanism and the second drive mechanism, also make described drive mechanism and screw-nut associated movement, simplified design, the open stand structure of above-mentioned extension has also increased the steadiness of the structure of technical solution of the present invention, is conducive to batch production and the dismounting of [Dan.
In possibility, described [Dan also comprises the worm gear mount pad that is arranged at Mobile base, the associated movement of can be the better firm worm gear of described worm gear mount pad and screw-nut, and can further increase the steadiness of the structure of technical solution of the present invention.
Brief description of the drawings
The structural representation of the [Dan of a kind of mammary gland X ray photographing system that Fig. 1 provides for technical solution of the present invention;
Fig. 2 is the structural representation that plate for forcing is fixed on plate for forcing fixture;
Fig. 3 is the structural representation that the structure A in Fig. 1 is amplified;
Fig. 4 is the structural representation of observing [Dan shown in Fig. 1 from another angle;
The structural representation of a kind of mammary gland X ray photographing system that Fig. 5 provides for technical solution of the present invention.
Detailed description of the invention
For object of the present invention, feature and effect can be become apparent more, below in conjunction with accompanying drawing, the specific embodiment of the present invention is elaborated.
Set forth in the following description a lot of details so that fully understand the present invention, implemented but the present invention can also adopt other to be different from mode described here, therefore the present invention is not subject to the restriction of following public specific embodiment.
A [Dan for mammary gland X ray photographing system, as shown in Figure 1, comprises plate for forcing (not shown), guide rail (2,3, refer to line slideway here, can be also optical axis) and compressing support B.With reference to the xyz three-dimensional system of coordinate in Fig. 1, guide rail 2 and guide rail 3 arrange abreast with z axle, described compressing support B is fixing by described guide rail 2 and guide rail 3, and can drive described plate for forcing to move freely along described guide rail, to support described plate for forcing to carry out pressing action along described guide rail direction (z direction of principal axis).
In the present embodiment, described guide rail (2,3) is guide, and described guide rail (2,3) is for installing described compressing support B.Described plate for forcing and compressing support B are relatively-stationary, the present embodiment does not limit the connected mode of plate for forcing and compressing support B, after but the oppressed support B of plate for forcing is fixing, plate for forcing plane is generally vertical with guide rail direction, but also can be at an angle with guide rail direction, this angle need possess the projection width in guide rail direction, and plate for forcing plane and guide rail direction be at an angle makes to act on the driving force (oppressive force) acting in [Dan on plate for forcing can the component of guide rail direction.
In conjunction with Fig. 1, above-mentioned restriction specifically refers to, plate for forcing plane can with xy plane parallel, also can with xy plane at an angle, described guide rail direction is z direction of principal axis, plate for forcing plane and xy plane also possess the axial angle with z at an angle time; Wherein, the X ray dash receiver place plane parallel of described xy plane and mammary gland X ray photographing system, z direction of principal axis is described guide rail direction.
Plate for forcing can directly be fixed with compressing support B, also can fix by specific connecting device and described compressing support B, to keep plate for forcing plane vertical with described guide rail direction.In the present embodiment, compressing support B comprises plate for forcing fixture b1, can be as shown in Figure 2, and compressing support B is fixed plate for forcing C by plate for forcing fixture b1.
It should be noted that:
The mode of being slidably connected of described slide and corresponding guide rail is not limited to the scheme of the present embodiment, and in other embodiments, the number of [Dan can be any, and [Dan has a guide rail at least.According to the number of [Dan, compressing support B can comprise the slide carriage structure identical with described number, also can comprise the slide carriage structure that is less than described number.Other and described guide rail also can be set in the cylindrical structure of slide to be slidably matched and at the connector of other direction secure fit in guide rail direction, such as, described guide rail surface is provided with track, and (the present embodiment is that guide rail body is carried track lines, and in other embodiments, orbital member is additionally set on guide rail), and the roller that coordinates with described track is set in the cylindrical structure of slide, described roller and track are slidably matched and in other direction secure fit in guide rail direction.In addition, in the time that described compression mechanism comprises some guide rails and some slides, can be only in part guide rails and corresponding slide, described the first track lines and the second track lines or track and roller be set, other guide rails and corresponding slide only need be slidably matched in guide rail direction.
Certainly, above-mentioned guide rail and corresponding slide fit system can reduce resistance to sliding and at the further bonding strength between fixing compressing support and guide rail of other directions in guide rail direction.In other embodiments, the surface of guide rail and the inner surface of slide can be also smooth surfaces, the slide that can directly internal diameter be greater than to guide rail radius is socketed on corresponding guide rail, only realize being slidably matched of guide rail direction, and adopt the connected mode of other relevant parts to be fixed except compressing support and guide rail in other directions of guide rail direction.
Continue with reference to figure 1, and in conjunction with Fig. 3, the [Dan of the mammary gland X ray photographing system of the present embodiment also comprises energising brake clutch 6, power interruption braking clutch 10, is limited by the first drive mechanism of described energising brake clutch 6, is limited by the second drive mechanism of described power interruption braking clutch 10, with the juxtaposed leading screw 11 of described guide rail (2,3) and around described leading screw 11 screw-nut 16 coaxial with described leading screw 11; Described screw-nut 16 is relative static along described guide rail with compressing support B, and described screw-nut 16 and leading screw 11 can rotate mutually; Described the first drive mechanism and described screw-nut 16 principal and subordinate's moving part each other, described the second drive mechanism and described leading screw 11 principal and subordinate's moving part each other.
The disclosed [Dan of technique scheme, by adaptive leading screw 11 and screw-nut 16, makes [Dan in the time realizing pressing action, can switch the rotation status of leading screw and screw-nut:
In electronic compressing pattern, after energising, energising brake clutch 6 makes the first drive mechanism stop transmission, and now the second drive mechanism drives and drives off generation transmission at electric power, and driving described leading screw 11 to rotate, the screw-nut 16 that rotarily drives of leading screw 11 moves along guide rail direction; And the movement of screw-nut 16 makes corresponding thereto static compressing support B also move along described guide rail direction, thereby drive plate for forcing to carry out pressing action along described guide rail direction (z direction of principal axis).
In manual compressing pattern, after power-off, power interruption braking clutch 10 makes the second drive mechanism stop transmission, but can there is transmission in the first drive mechanism now under manually controlling, and drive described screw-nut 16 wrapping wire thick sticks 11 to rotate, the rotation of screw-nut 16 self makes self to move along guide rail direction, the movement of screw-nut 16 makes corresponding thereto static compressing support B also move along described guide rail direction, so carry out pressing action at the moving plate for forcing of manual compressing banding along described guide rail direction (z direction of principal axis).
[Dan under such scheme limits is different from prior art, it can be by the cooperation rotation of leading screw and screw-nut, the movement of screw-nut along guide rail direction will be converted to around axial rotatablely moving, utilize the different rotary state that coordinates rotation in said process, control the electronic compressing pattern of [Dan and the manually switching of compressing pattern, realized the electronic compressing pattern of [Dan and manual compressing pattern integral structure.[Dan under such scheme limits can provide enough oppressive forces for Clinical Photography based on the electronic compressing pattern of [Dan, can provide the fine adjustments of oppressive force for Clinical Photography in the pattern of manually oppressing based on [Dan again, for mammography process provides suitable and accurate pressing action; Wherein, based on [Dan manually the pattern of oppressing can also drive compressing support and plate for forcing to move back and forth by worm gear, do not need extra reset operation, can in once-through operation, drive plate for forcing to move to the position that system is specified, to improve detection efficiency.Clinical Photography process can be only above-mentioned a kind of oppress pattern or combine use above-mentioned two kinds of compressing patterns to oppress mammary gland or the relevant reference object of other bodies of gland, can meet the compressing requirement of various bodies of gland, ensure comfortable, the safety and reliable of compressing process.
Can limit, being connected between described screw-nut 16 and leading screw 11 can be with reference to following mode: described leading screw 11 comprises external screw thread, and 16 of described screw-nuts are provided with female thread, the female thread engagement of the external screw thread of described leading screw 11 and screw-nut 16.Due to the screw-threaded engagement of leading screw 11 and screw-nut 16, make leading screw 11 and screw-nut 16 can produce and relatively move and interfix in other directions in guide rail direction.In other embodiments, for the fit structure that makes screw-nut 16 and leading screw 11 can possess larger bearing capacity, strengthen the bulk strength of [Dan, the female thread of the external screw thread of described leading screw 11 and screw-nut 16 can also be by longitudinal roller or ball engagement.
Continue with reference to figure 1, and in conjunction with Fig. 3 and Fig. 4, known, the first drive mechanism comprise through the rotating shaft 5 of described energising brake clutch 6, moved in the worm screw 17 of described rotating shaft 5 and with the worm gear 13 of described worm screw 17 adaptations, described worm gear 13 can be around the axis of described leading screw 11 relative to rotating still with described screw-nut 16.Wherein, described energising brake clutch 6 comprises first rolling disc that can rotate with described rotating shaft 5, and described rotating shaft 5 is fixedly connected with to be limited by described energising brake clutch 6 with described the first rolling disc.
Said structure discloses a kind of implementation of the first drive mechanism, the first drive mechanism is driven to worm screw 17, is driven to worm gear 13 by worm screw 17 again by rotating shaft 5, worm gear 13 is together socketed on leading screw 11 with described screw-nut 16, worm gear 13 drives screw-nut 16 to rotate on leading screw 11, realizes the movement of screw-nut 16 along guide rail direction.
Concrete, described rotating shaft 5 at least comprises as follows with the connected mode of worm screw 17:
Can be by being arranged at respectively the first belt wheel and the second belt wheel of rotating shaft 5 and worm screw 17 and the connection belt of described the first belt wheel and the second belt wheel transmission being in transmission connection.
With reference to figure 1, the present embodiment makes transmission between rotating shaft 5 and worm screw 17 by the more preferred connected mode of one: described the first drive mechanism also comprises the torque limiting apparatus 7 that is arranged at described rotating shaft 5 one end and the belt wheel 9 that is arranged at described worm screw 17 one end, and described rotating shaft 5 and worm screw 17 can and make described torque limiting apparatus 7 and the belt 8 that is connected of belt wheel 9 transmissions is in transmission connection by torque limiting apparatus 7, belt wheel 9.Can not limit rotating shaft 5 is links with worm screw 17 with corresponding torque limiting apparatus 7 and belt wheel 9, but generally for simplification device structure, described torque limiting apparatus 7 and belt wheel 9 can be arranged at respectively the same side link of rotating shaft 5 and worm screw 17.
At another, in connected mode, torque limiting apparatus 7 also can be arranged at described worm screw 17 one end, and connects by being connected belt with the belt wheel in rotating shaft 5.
Consider that in Clinical X ray shooting use procedure,, for the restriction requirement of oppressive force, the torque setting value of described torque limiting apparatus is less than or equal to 300N in the present embodiment.
Continue with reference to figure 1, and in conjunction with Fig. 3, slide 12a and the slide 12b of the present embodiment compressing support B can be connected and fixed by connecting portion 120, slide 12a, slide 12b and connecting portion 120 are one-body molded to form the Mobile base of compressing support B.In the present embodiment, described Mobile base is set up the annexation of described compressing support B and described leading screw 11, screw-nut 16 and worm gear 13 by connecting portion 120:
Described connecting portion 120 central authorities are provided with a bearing cross hole 121, in bearing cross hole 121, be provided with bearing (14a, 14b), screw-nut 16 is connected with described bearing (14a, 14b) by worm gear mount pad 15 with worm gear 13, described bearing (14a, 14b) and worm gear mount pad 15 can also can, in the interior activity of bearing cross hole 121, rotate by associated movement screw-nut 16 and worm gear 13 with the axis of common wrapping wire thick stick.
In said structure, can think that worm gear 13, worm gear mount pad 15 and the screw-nut 16 that can jointly in moving sliding base, rotate form a worm gear conjunction, above-mentioned worm gear conjunction is arranged in bearing cross hole 121 rotationally by described bearing (14a, 14b), wherein, worm gear 13 and screw-nut 16 are fixed on respectively one end and the other end of worm gear mount pad 15.
Concrete, worm gear mount pad 15 is arranged in described bearing cross hole 121 rotationally by described bearing (14a, 14b), and described leading screw 11 runs through described worm gear mount pad 15.Described screw-nut 16 embeds described worm gear mount pad 15 inside to coordinate with the leading screw 11 that runs through described worm gear mount pad 15 from one end of described worm gear mount pad 15, note, known in conjunction with Fig. 3, the inner surface of screw-nut 16 and described leading screw 11 threaded engagement, the outer surface of screw-nut 16 and described worm gear mount pad 15 inside fix; Described worm gear 13 is fixed with the other end of described worm gear mount pad 15.
Can also do following restriction to above-mentioned annexation: described screw-nut 16 embeds described worm gear mount pad 15 to be arranged at bearing cross hole 121 inner chambers, described worm gear 13 is fixing to be exposed to bearing cross hole 121 outsides with described worm gear mount pad 15.
It is the encapsulation degree in order to improve device in bearing cross hole 121 inner chambers that described screw-nut 16 is set, and reduces device volume; Worm gear 13 is set in bearing cross hole 121 outsides is for the ease of being connected of worm gear 13 and worm screw 17, make worm gear 13 and worm screw 17 can directly carry out cooperating.
In addition, the worm screw 17 of the present embodiment can be connected with described compressing support B by the worm screw mount pad (19,20) at its two ends, can be arranged at described slide 12a with reference to figure 4 worm screw mount pads 19, worm screw mount pad 20 can be arranged at described slide 12b, one end of worm screw 17 is through described worm screw mount pad 19, and the other end of worm screw 17 is through described worm screw mount pad 20.
Continue with reference to figure 1 driven driving shaft when described the second drive mechanism comprises energising.In the present embodiment, described leading screw 11 is double does described driving shaft.Leading screw 11 is through described power interruption braking clutch 10.Concrete, described power interruption braking clutch 10 comprises second rolling disc that can rotate with described leading screw 11, described leading screw 11 is fixedly connected with to be limited by described power interruption braking clutch 10 with described the second rolling disc, usually, the rolling disc of described power interruption braking clutch 10 (also can claim rotation seat) is fixed on the end of leading screw 11.
The [Dan of the present embodiment specifically can be by drive motors to drive described leading screw 11 to rotate.Described drive motors can be that external equipment provides.
In the time using the [Dan of the present embodiment in described mammary gland X ray photographing system, can be that [Dan is installed in the frame of mammary gland X ray photographing system, thereby, the [Dan of the present embodiment can also comprise the first supporting seat 1 and the second supporting seat 18 as shown in Figure 1 and Figure 4, and described the first supporting seat 1 and the second supporting seat 18 are for being fixed on the said structure of the present embodiment on the support of mammary gland X ray photographing system.It should be explained that, described the first supporting seat 1 and the second supporting seat 18 can be to adapt with the frame type of described mammary gland X ray photographing system, can provide by the equipment beyond the present embodiment indication [Dan, also can be included in the structure of described [Dan.In the schematic diagram of [Dan as shown in Figure 1 and Figure 4, guide rail 2, guide rail 3 and leading screw 11 are arranged between described the first supporting seat 1 and the second supporting seat 18, described power interruption braking clutch 10 is arranged on described the first supporting seat 1, and described leading screw 11 is connected with described power interruption braking clutch 10 through described the first supporting seat 1.Now, as described in [Dan carry drive as described in the leading screw 11 drive motors (not shown) of rotating, drive motors can be arranged on described the second supporting seat 18.
Above-mentioned restriction can complete the [Dan based on technical solution of the present invention thinking.The work process of the pressure device under above-mentioned definition is (using electronic compressing pattern and manual compressing pattern as example to combine):
The [Dan of mammary X-ray camera chain, in the time of electronic compressing pattern, starts backpedalling brake (or switch) with power-on; When energising, power interruption braking clutch 10 is in "on" position, and the second rolling disc separates from clutch 10 bodies, makes leading screw 11 rotatable; And energising time is switched on brake clutch 6 in "on" position, the first rolling disc and clutch 6 body engagement, rotating shaft 5 is lockable and cannot be rotated by the first rolling disc, now manually oppress mode failures even, torque limiting apparatus 7 also cannot rotate, and then cannot make worm screw 17 rotate, the self-locking of engaging by worm screw 17 with worm gear 13, worm gear 13 cannot rotate, and now, screw-nut 16 can not rotate;
When energising, start external equipment drive motors that provide or that [Dan carries to drive leading screw 11 to rotate, when described driving leading screw 11 rotates, leading screw 11 can rotate relatively with screw-nut 16, screw-nut 16 moves along the axis direction of leading screw 11, drives the plate for forcing being arranged on compressing support B to implement electronic compressing to person under inspection's tested body of gland by Mobile base; Described drive motors also can rotate by reverse driving leading screw 11, and screw-nut 16 is now along the axis direction adverse movement of leading screw 11, thus the tested body of gland that drives the plate for forcing being arranged on compressing support B to depart from person under inspection.
The [Dan of mammary X-ray camera chain is in the time of manual compressing pattern, and backpedalling brake (or switch) is in releasing orientation, power-off; When power-off, power interruption braking clutch 10 is in off-position, the second rolling disc and clutch 10 body engagement, and leading screw 11 cannot rotate; And energising brake clutch 6 now separates the first rolling disc from body, remove the locking to hand-operated rotating shaft 5; Now, manual actuation rotating shaft 5, thus torque limiting apparatus 7 links, and by engaging of worm screw 17 and worm gear 13, worm gear 13 rotates; Worm gear 13 drives screw-nut 16 to rotate, thereby leading screw 11 can be rotated relatively with screw-nut 16, screw-nut 16 moves along the axis direction of leading screw 11, drives the plate for forcing being arranged on compressing support B to implement manually compressing to person under inspection's tested body of gland by Mobile base.
The [Dan of mammary X-ray camera chain is in the time of manual compressing pattern, in the time being applied to person under inspection's the oppressive force of tested body of gland and being greater than the default numerical value (300N) that torque limiting apparatus 7 sets, the rotor of torque limiting apparatus 7 and its stationary body generation skidding, when hand rotation rotating shaft 5, torque limiting apparatus 7 can not rotate, and then cannot drive the plate for forcing being arranged on compressing support B to implement manually compressing to person under inspection's tested body of gland.
In manual compressing pattern, in the time manually oppressing, freely moving back and forth to plate for forcing and compressing support 7: the transmission by worm screw 17 and worm gear 13 is paid, drive relatively rotating of screw-nut 16 and leading screw 11, this rotation can be clockwise, can be also counterclockwise, Mobile base and compressing support B are moved back and forth, thereby plate for forcing can be moved to the position that system is specified, so that doctor starts pressing action next time easily, reduce the loaded down with trivial details of operation.
The [Dan that above-mentioned technological means limits can solve the technical problem of technical solution of the present invention.Especially, in above-mentioned [Dan, in conjunction with energising brake clutch, power interruption braking clutch and the combined architectural feature of rotating worm gear, complete after manual compressing operation at [Dan, do not need manually reset operation to be carried out in the position of [Dan.
In above-mentioned technological means, worm gear mount pad and the worm gear mounted thereto combined structure of worm screw of paying with screw-nut transmission, be meshed with worm gear, can switch screw-nut wrapping wire thick stick axis rotary state and resting state, realize the relative rotation of leading screw and screw-nut.
In addition, utilize torque limiting apparatus and power interruption braking clutch and endless screw-worm gear transmission to pay combined structure; Can realize under manual compressing mode of operation, compression mechanism is applied to a certain special value that maximum oppressive force on person under inspection's tested body of gland is less than default, ensures handling safety.
The Mobile base of above-mentioned [Dan, except comprising plate for forcing fixture and Mobile base, as shown in Fig. 1 and Fig. 4, also can comprise in the [Dan of the present embodiment:
Be located at first open stand of described Mobile base one end; And,
Be located at the second open stand of the described Mobile base other end.
Described the first open stand comprises relative the first side wall 4a and the second sidewall 4b, described the second open stand comprises the 3rd relative sidewall and the 4th sidewall, described energising brake clutch 6 is arranged at described the first side wall 4a, described rotating shaft 5 is installed between described the first side wall 4a and the second sidewall 4b, and described worm screw 17 is installed between described the 3rd sidewall and the 4th sidewall.
Described torque limiting apparatus 7 is arranged at the second sidewall 4b, belt wheel 9 is arranged at the 4th sidewall, torque limiting apparatus 7, belt wheel 9 and be connected belt 8 and be connected, and torque limiting apparatus 7 and belt wheel 9 are located at respectively in the rotating shaft 5 and worm screw 17 of the same side.
Described the first open stand can be connected one end corresponding to Mobile base body with the second open stand, also can extend and form from the corresponding one end of Mobile base body, note in the compression mechanism shown in Fig. 1 and Fig. 4, the first open stand is extended and is formed from Mobile base body one end, the second open stand other end is formed by connecting with the Mobile base body other end, wherein, described worm screw mount pad 19 is double does described the 3rd sidewall, and described worm screw mount pad 20 is double does described the 4th sidewall.
In addition, in Mobile base body, slide 12a and slide 12b also can possess along the width of guide rail direction, with plate for forcing, the first drive mechanism and the action of the second drive mechanism on more stable restriction and drive compressing support B and compressing support B.
In the time that slide 12a and slide 12b possess the width along guide rail direction, slide 12a, slide 12b and connecting portion 120 form first group of " H " shape conjunction, and between the first side wall 4a of the first open stand and the second sidewall 4b for the purpose of firm, the baffle plate 122 relative with described rotating shaft 5 as shown in Figure 1 also can be set.122, the first side wall 4a, the second sidewall 4b and baffle plate form second group of " H " shape conjunction.Now, rotating shaft 5 can be located at a side of second group of " H " shape conjunction opening, and energising brake clutch 6 is arranged on the first side wall 4a of second group of " H " shape conjunction opening.The opposite side of second group of " H " shape conjunction opening and described first group of " H " shape conjunction (being also Mobile base) are fixing, and the two can be one-body molded.
The present embodiment also provides a kind of mammary gland X ray photographing system, as shown in Figure 5, comprise frame s1, X-ray tube s2, [Dan s3 and X ray dash receiver s4 as described in the present embodiment, guide rail s30 in [Dan s3 is arranged in described frame, and described plate for forcing s31 is fixed on described compressing support s32.
Described plate for forcing s31 is arranged between described X-ray tube s2 and X ray dash receiver s4, and described plate for forcing s31 and X ray dash receiver s34 are for being oppositely arranged.Compressing support s32 drives plate for forcing s31 to move between X-ray tube s2 and X ray dash receiver s4 along guide rail s30, to carry out pressing action.
Known based on Fig. 5, the plane of plate for forcing s31 is vertical with the direction of guide rail s30, but in actual mechanical process, also described plate for forcing s31 can be adjusted to guide rail s30 direction at an angle, but this angle is relevant to the projecting direction of X-ray tube X ray that s2 launches, general plate for forcing s31 is also vertical with the projecting direction of X ray and towards the transmit direction of X ray.In Fig. 5, the angle of the plane of plate for forcing s31 and guide rail s30 direction is 90 °, but according to the difference of the projecting direction of X ray, and actual angle between the two can be greater than or less than 90 °.In Fig. 5, plate for forcing s31 plane can be parallel with X ray dash receiver s4, but actual plate for forcing s31 plane also may and X ray dash receiver s4 plane between possess the angle that is not 90 °.
Although the present invention with preferred embodiment openly as above; but it is not for limiting the present invention; any those skilled in the art without departing from the spirit and scope of the present invention; can utilize method and the technology contents of above-mentioned announcement to make possible variation and amendment to technical solution of the present invention; therefore; every content that does not depart from technical solution of the present invention; any simple modification, equivalent variations and the modification above embodiment done according to technical spirit of the present invention, all belong to the protection domain of technical solution of the present invention.
Claims (14)
1. the [Dan of a mammary gland X ray photographing system, comprise plate for forcing, guide rail and support the compressing support that described plate for forcing moves along described guide rail, it is characterized in that, also comprise energising brake clutch, power interruption braking clutch, be limited by described energising brake clutch the first drive mechanism, be limited by the second drive mechanism of described power interruption braking clutch, with the juxtaposed leading screw of described guide rail and around described leading screw the screw-nut coaxial with described leading screw; Described screw-nut is relative static along described guide rail with compressing support, and described screw-nut can rotate relatively with leading screw; Described the first drive mechanism and described screw-nut principal and subordinate's moving part each other, described the second drive mechanism and described leading screw principal and subordinate's moving part each other.
2. the [Dan of mammary gland X ray photographing system as claimed in claim 1, it is characterized in that, described the first drive mechanism comprise through the rotating shaft of described energising brake clutch, moved in the worm screw of described rotating shaft and with the worm gear of described worm screw adaptation, described worm gear can be around the axis of described leading screw relative to rotating still with described screw-nut.
3. the [Dan of mammary gland X ray photographing system as claimed in claim 2, it is characterized in that, described the first drive mechanism also comprise be arranged at described rotating shaft arbitrary end torque limiting apparatus, be arranged at the belt wheel of described worm screw arbitrary end and make the connection belt of described torque limiting apparatus and belt wheel transmission.
4. the [Dan of mammary gland X ray photographing system as claimed in claim 2, it is characterized in that, described compressing support comprises plate for forcing fixture and Mobile base, described Mobile base comprises first slide that can slide on described guide rail and the second slide and is connected the connecting portion of described the first slide and the second slide, described leading screw runs through described connecting portion, and described screw-nut is arranged in described connecting portion rotationally.
5. the [Dan of mammary gland X ray photographing system as claimed in claim 4, is characterized in that, also comprises worm gear mount pad, and described connecting portion is provided with the bearing in bearing cross hole and bearing cross hole; Described worm gear mount pad is arranged in described bearing cross hole rotationally by described bearing, and described leading screw runs through described worm gear mount pad, and described screw-nut embeds described worm gear mount pad inside to coordinate with the leading screw that runs through described worm gear mount pad; Described worm gear and described worm gear mount pad are fixed.
6. the [Dan of mammary gland X ray photographing system as claimed in claim 5, it is characterized in that, described screw-nut embeds described worm gear mount pad so that described screw-nut is arranged at described bearing cross hole inner chamber, described worm gear and described worm gear mount pad is fixed so that described worm gear is exposed to bearing cross hole outside.
7. the [Dan of the mammary gland X ray photographing system as described in claim 4 to 6 any one, it is characterized in that, described Mobile base also comprises the first open stand extending to form from described Mobile base one end and the second open stand extending to form from the described Connection Block other end, described the first open stand comprises relative the first side wall and the second sidewall, described the second open stand comprises the 3rd relative sidewall and the 4th sidewall, and described energising brake clutch is arranged at described the first side wall; Described rotating shaft is installed between described the first side wall and the second sidewall, and described worm screw is installed between described the 3rd sidewall and the 4th sidewall.
8. the [Dan of mammary gland X ray photographing system as claimed in claim 7, it is characterized in that, described the first drive mechanism also comprise be arranged at described the second sidewall torque limiting apparatus, be arranged at the belt wheel of described the 4th sidewall and make the connection belt of described torque limiting apparatus and belt wheel transmission, described rotating shaft is connected by described torque limiting apparatus, belt wheel and connection belt with worm screw.
9. the [Dan of mammary gland X ray photographing system as claimed in claim 2, is characterized in that, described energising brake clutch comprises first rolling disc that can rotate with described rotating shaft.
10. the [Dan of mammary gland X ray photographing system as claimed in claim 1, is characterized in that, described the second drive mechanism comprises driven driving shaft of when energising, and described driving shaft is through described power interruption braking clutch, and described leading screw is double does described driving shaft.
The [Dan of 11. mammary gland X ray photographing systems as claimed in claim 10, it is characterized in that, also comprise the first supporting seat and the second supporting seat, described guide rail and leading screw are arranged between described the first supporting seat and the second supporting seat, and described power interruption braking clutch is arranged at described the first supporting seat.
The [Dan of 12. mammary gland X ray photographing systems as described in claim 10 or 11, is characterized in that, described power interruption braking clutch comprises can be with the second rolling disc of described drive shaft turns.
The [Dan of 13. mammary gland X ray photographing systems as claimed in claim 11, is characterized in that, also comprises the drive motors that can drive described leading screw to rotate, and described drive motors is arranged at described the second supporting seat.
14. 1 kinds of mammary gland X ray photographing systems, are characterised in that, comprise frame, X-ray tube, [Dan and X ray dash receiver as described in claim 1 to 13 any one, and described guide rail is arranged in described frame, and described plate for forcing is fixed on described compressing support; Wherein, described plate for forcing is arranged between described X-ray tube and X ray dash receiver, and described plate for forcing and X ray dash receiver are for being oppositely arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310638179.9A CN103876760A (en) | 2013-11-29 | 2013-11-29 | Breast X-ray radiography system and pressing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310638179.9A CN103876760A (en) | 2013-11-29 | 2013-11-29 | Breast X-ray radiography system and pressing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103876760A true CN103876760A (en) | 2014-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310638179.9A Pending CN103876760A (en) | 2013-11-29 | 2013-11-29 | Breast X-ray radiography system and pressing device |
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| US9655578B2 (en) | 2014-11-14 | 2017-05-23 | Sansung Electronics Co., Ltd. | Mammography apparatus |
| WO2016076528A1 (en) * | 2014-11-14 | 2016-05-19 | Samsung Electronics Co., Ltd. | Mammography apparatus |
| WO2016105144A1 (en) * | 2014-12-26 | 2016-06-30 | 주식회사 레이언스 | Lifting apparatus for pressure paddle and x-ray image photographing device including same |
| KR20170087509A (en) * | 2014-12-26 | 2017-07-28 | 주식회사 레이언스 | Elevating device for press paddle and X-ray image taking device including the same |
| US20170367670A1 (en) * | 2014-12-26 | 2017-12-28 | Rayence Co., Ltd. | Lifting apparatus for pressure paddle and x-ray image photographing device including same |
| EP3238628A4 (en) * | 2014-12-26 | 2018-08-15 | Rayence Co., Ltd. | Lifting apparatus for pressure paddle and x-ray image photographing device including same |
| KR101996638B1 (en) | 2014-12-26 | 2019-10-17 | 주식회사 레이언스 | X-ray imaging device including lifting paddle for compression paddle |
| US10631809B2 (en) | 2014-12-26 | 2020-04-28 | Rayence Co., Ltd. | Lifting device for compression paddle and X-ray imaging apparatus including the same |
| CN105030271A (en) * | 2015-09-01 | 2015-11-11 | 上海联影医疗科技有限公司 | Method and device for pressing mammary gland |
| CN105286904A (en) * | 2015-09-21 | 2016-02-03 | 北京国药恒瑞美联信息技术有限公司 | Mammary machine compression device |
| CN105286898A (en) * | 2015-11-25 | 2016-02-03 | 沈阳东软医疗系统有限公司 | Mammary gland compression panel structure and mammary gland detecting instrument |
| CN106264578A (en) * | 2016-08-05 | 2017-01-04 | 深圳圣诺医疗设备股份有限公司 | Breast X-ray system and compressorium thereof |
| CN106264578B (en) * | 2016-08-05 | 2019-08-30 | 深圳圣诺医疗设备股份有限公司 | Breast X-ray system and its compressorium |
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Application publication date: 20140625 |