阅读说明：本技术 一种医用彩超探头 (Medical color ultrasound probe ) 是由 不公告发明人 于 2019-10-11 设计创作，主要内容包括：本发明属于医疗器械技术领域,具体的说是一种医用彩超探头,包括外壳,外壳内开设的滑槽中滑动连接有探测块；外壳内远离滑槽的一侧上部设有用于储存耦合剂的储存室；储存室下方的外壳内壁设有中转室,中转室下方设有横截面为弧形的滚动室,中转室与滚动室通过下料孔连通；储存室底部设有活塞缸,活塞缸中滑动连接有活塞杆,活塞杆伸出活塞缸外部的一端通过横杆与探测块固连；活塞缸的无杆腔顶部通过连通孔与储存室连通,活塞缸的无杆腔通过连接管与中转室连通；本发明通过探测块带动活塞缸中挤出定量的耦合剂,涂抹在受检部位,从而控制耦合剂的使用量。(The invention belongs to the technical field of medical instruments, and particularly relates to a medical color Doppler ultrasound probe which comprises a shell, wherein a detection block is connected in a sliding groove formed in the shell in a sliding manner; a storage chamber for storing a coupling agent is arranged at the upper part of one side, far away from the sliding chute, in the shell; a transfer chamber is arranged on the inner wall of the shell below the storage chamber, a rolling chamber with an arc-shaped cross section is arranged below the transfer chamber, and the transfer chamber is communicated with the rolling chamber through a blanking hole; a piston cylinder is arranged at the bottom of the storage chamber, a piston rod is connected in the piston cylinder in a sliding manner, and one end of the piston rod, which extends out of the piston cylinder, is fixedly connected with the detection block through a cross rod; the top of a rodless cavity of the piston cylinder is communicated with the storage chamber through a communicating hole, and the rodless cavity of the piston cylinder is communicated with the transfer chamber through a connecting pipe; the invention drives the piston cylinder to extrude a certain amount of couplant through the detection block, and the couplant is smeared on a detected part, so that the use amount of the couplant is controlled.)

1. A medical color Doppler ultrasound probe is characterized in that: comprises a shell (1), wherein the bottom of the shell (1) is provided with an opening; a detection block (13) is connected in a sliding way in a sliding groove (12) formed in the shell (1), and the detection block (13) is electrically connected with receiving equipment through a flexible lead; a storage chamber (14) for storing a couplant is arranged at the upper part of one side, far away from the chute (12), in the shell (1), and a charging opening (15) is arranged at the upper part of the storage chamber (14); a transfer chamber (16) is arranged on the inner wall of the shell (1) below the storage chamber (14), a rolling chamber (17) with an arc-shaped cross section is arranged below the transfer chamber (16), and the transfer chamber (16) is communicated with the rolling chamber (17) through a discharging hole (18); elastic scraping plates (19) for scraping off the coupling agent are arranged on two sides of the bottom of the rolling chamber (17); a piston cylinder (2) is arranged at the bottom of the storage chamber (14), a piston rod (21) is connected in the piston cylinder (2) in a sliding manner, and one end, extending out of the piston cylinder (2), of the piston rod (21) is fixedly connected with the detection block (13) through a cross rod (22); a return spring is arranged in a rodless cavity of the piston cylinder (2), the top of the rodless cavity of the piston cylinder (2) is communicated with the storage chamber (14) through a communicating hole (23), and the rodless cavity of the piston cylinder (2) is communicated with the transfer chamber (16) through a connecting pipe (24) arranged on the side wall of the piston cylinder (2); the connecting pipe (24) and the communicating hole (23) are both internally provided with one-way valves; make piston cylinder (2) extrude quantitative couplant through pressing probe block (13), and then scribble the couplant at the person of being examined position through elasticity scraper blade (19), reduced the use amount of couplant, reduced person of being examined's uncomfortable degree simultaneously.

2. The medical color Doppler ultrasound probe according to claim 1, wherein: the rolling chamber (17) is connected with a cylindrical ball (3) in a rolling way; a cover plate (31) used for preventing the beads (3) from falling is arranged below the rolling chamber (17), an arc-shaped groove (32) matched with the beads (3) is arranged on the cover plate (31), and the bottom of the beads (3) penetrates through the arc-shaped groove (32) and extends to the outside of one side, far away from the rolling chamber (17), of the cover plate (31); the couplant is taken out from a gap between the moving bead (3) and the cover plate (31) through the rolling moving bead (3) and then is smeared on the part to be checked of the checked person, the using amount of the couplant is further reduced, meanwhile, the rolling moving bead (3) can increase the smearing uniformity of the couplant, and the imaging accuracy of the color Doppler ultrasound is further improved.

3. The medical color Doppler ultrasound probe according to claim 2, wherein: a friction wheel (4) is arranged on one side of the moving ball (3); a thrust plate (42) is connected in a sliding manner in a clamping groove (41) formed in the side wall of the blanking hole (18), a swing rod (43) is arranged on the shell (1) on one side, away from the blanking hole (18), of the thrust plate (42), the middle of the swing rod (43) is hinged with the shell (1), a track (44) is arranged on one side, close to the thrust plate (42), of the swing rod (43), a clamping pin (45) is arranged on the thrust plate (42) in a position corresponding to the track (44), the clamping pin (45) is sleeved in the track (44), and the clamping pin (45) is connected with the track (44) in a sliding manner; the swing rod (43) is matched with a bayonet (45) and used for opening or closing the blanking hole (18); a sliding hole (46) is formed in one end, far away from the rail (44), of the swing rod (43), a sliding column (47) is connected in the sliding hole (46) in a sliding mode, a spring is arranged between the sliding column (47) and the bottom of the sliding hole (46), and the spring is used for extruding the sliding column (47) and enabling the sliding column (47) to abut against the friction wheel (4); the piston rod (21) is in clearance fit with the piston cylinder (2); the friction wheel (4) drives the swing rod (43) to rotate, so that the couplant cannot be extruded out when the moving balls (3) rotate reversely, and the use amount of the couplant is further saved.

4. The medical color Doppler ultrasound probe according to claim 2, wherein: a group of springs are arranged between the cover plate (31) and the bottom of the rolling chamber (17), and a group of pressing plates (5) are arranged on one side of the cover plate (31) far away from the rolling chamber (17); the pressure plate (5) is fixedly connected with the shell (1), a threaded hole (51) is formed in one side, close to the cover plate (31), of the pressure plate (5), a pin (52) is connected to the threaded hole (51) in a threaded mode, the pin (52) is used for adjusting the gap between the cover plate (31) and the moving ball (3), and the using amount of the coupling agent is further saved.

5. The medical color Doppler ultrasound probe according to claim 4, wherein: an annular elastic sleeve (33), an annular roller wheel (34) and a cylindrical cavity (35) are sequentially arranged on the cross section of the moving bead (3) from outside to inside, a group of first blind holes (36) are uniformly distributed on the periphery of the roller wheel (34) along the circumference of the radius direction, a first magnetic block (37) is connected in the first blind holes (36) in a sliding mode, a second magnetic block (38) is arranged in the cavity (35), a support (39) is arranged on the inner wall of the cavity (35), one end, far away from the roller wheel (34), of the support (39) is overlapped with the center of the cavity (35), and one end, far away from the roller wheel (34), of the support (39) is rotatably connected with the second; the magnetic pole of one end, close to the center of the cavity (35), of the first magnetic block (37) is the same as the magnetic pole of one side, far away from the center of the cavity (35), of the second magnetic block (38); the elastic sleeve (33) continuously protrudes and massages the detected part through the repulsion action of the first magnetic block (37) and the second magnetic block (38), so that the infiltration degree of the couplant and the detected part is further increased, and the accuracy of color ultrasound imaging is further improved.

6. The medical color Doppler ultrasound probe according to claim 5, wherein: a second blind hole (310) is formed between every two adjacent first blind holes (36), and a third magnetic block (311) is connected in the second blind hole (310) in a sliding mode; the magnetism of the third magnetic block (311) is greater than that of the first magnetic block (37); the magnetic sizes of the first magnetic block (37) and the third magnetic block (311) are different, so that the elastic layer generates protrusions with different heights, the infiltration degree of the couplant and the detected part is further increased, and the accuracy of color ultrasound imaging is further improved.

Technical Field

The invention belongs to the technical field of medical instruments, and particularly relates to a medical color ultrasound probe.

Background

Color Doppler ultrasound generally consists of a probe (phased array, linear array, convex array, mechanical sector sweep, three-dimensional probe, endoscope probe, etc.), an ultrasonic transmitting/receiving circuit, signal processing, image display, etc. The device simultaneously acquires blood flow movement, tissue movement information and human organ tissue imaging by utilizing an ultrasonic Doppler technology and an ultrasonic echo principle.

The method is used for ultrasonic imaging, measurement and blood flow movement information acquisition for clinical ultrasonic diagnosis and examination. Wherein the probe can be used for transesophageal, intravascular, intraoperative internal body tissues, and/or for the fields of ultrasonic navigation and the like.

The use of the coupling agent can not be separated in the clinical application of the medical color ultrasound. Due to the ultrasonic principle of color ultrasound, probing requires that the probe is closely connected with the part to be tested, and the couplant realizes the function. The coupling agent is composed of a new-generation aqueous polymer gel, the pH value of the coupling agent is neutral, the coupling agent is non-toxic and harmless to a human body, and has no corrosion or damage to an ultrasonic probe, so that the probe is easy to slide, ultrasonic imaging is clear, and diagnosis time is saved. In the prior art, the couplant and the ultrasonic probe are separated in ultrasonic diagnosis, and when the couplant is used, a doctor has to extrude the couplant onto the surface of the probe or the surface of a receiver like extruding toothpaste according to own experience and feeling, and then ultrasonic exploration is carried out. The doctor has to operate with both hands in the earlier stage of operation, holds the couplant jar in one hand and holds the probe in the other hand, causes very big inconvenience. Meanwhile, the coating amount of the couplant only depends on the intuition of a doctor, the couplant is not properly quantified, the coating amount is often too much, unnecessary waste is caused, meanwhile, the viscosity of the couplant is high, discomfort of a patient is caused by excessive coating, and particularly when the ambient temperature is low, the examinee feels more cold and uncomfortable by excessive coating of the couplant.

Disclosure of Invention

In order to make up for the defects of the prior art and solve the problems that the smearing amount of the couplant is often too much in the medical color ultrasound imaging process, so that unnecessary waste is caused, meanwhile, the viscosity of the couplant is high, the patient feels uncomfortable due to excessive smearing, and particularly, when the ambient temperature is low, the examinee feels more cold and uncomfortable due to excessive smearing of the couplant, the medical color ultrasound probe is provided by the invention.

The technical scheme adopted by the invention for solving the technical problems is as follows: the medical color Doppler ultrasound probe comprises a shell, wherein an opening is formed in the bottom of the shell; a detection block is connected in a sliding groove formed in the shell in a sliding manner and is electrically connected with receiving equipment through a flexible lead; a storage chamber for storing a coupling agent is arranged at the upper part of one side, far away from the sliding chute, in the shell, and a charging opening is arranged at the upper part of the storage chamber; a transfer chamber is arranged on the inner wall of the shell below the storage chamber, a rolling chamber with an arc-shaped cross section is arranged below the transfer chamber, and the transfer chamber is communicated with the rolling chamber through a blanking hole; elastic scraping plates for scraping the coupling agent are arranged on two sides of the bottom of the rolling chamber; a piston cylinder is arranged at the bottom of the storage chamber, a piston rod is connected in the piston cylinder in a sliding manner, and one end of the piston rod, which extends out of the piston cylinder, is fixedly connected with the detection block through a cross rod; a return spring is arranged in a rodless cavity of the piston cylinder, the top of the rodless cavity of the piston cylinder is communicated with the storage chamber through a communicating hole, and the rodless cavity of the piston cylinder is communicated with the transfer chamber through a connecting pipe arranged on the side wall of the piston cylinder; one-way valves are arranged in the connecting pipe and the communicating hole; the piston cylinder extrudes a quantitative couplant by pressing the detection block, and the couplant is smeared on the part to be inspected of the inspected person by the elastic scraper, so that the use amount of the couplant is reduced, and the discomfort degree of the inspected person is reduced; when the color ultrasonic imaging device works, a medical worker holds the shell of the color ultrasonic probe by hand, presses the shell on a preset detected part on the body of a detected person, the detection block slides towards the shell along the sliding groove after being pressed, the detection block drives the cross rod, further, the piston rod is driven to slide in the piston cylinder, so that a certain amount of couplant is extruded out of the piston cylinder, then the couplant enters the transfer chamber through the connecting pipe, then slowly flows into the rolling chamber through the blanking hole under the action of gravity, finally drops on the detected part at the corresponding position of the rolling chamber, then the shell is moved, the couplant is smeared on the detected part under the drive of the elastic scraper, and at the moment, the detection block can obtain a clear color ultrasonic image; through the constant volume of piston cylinder for extrude quantitative couplant at every turn, and then the use amount of control couplant reduces the waste of couplant, reduces discomfort and the clearance work that the too much couplant of adhesion brought on the person of being examined simultaneously.

Preferably, a cylindrical ball is connected in the rolling chamber in a rolling way; a cover plate used for preventing the beads from falling is arranged below the rolling chamber, an arc-shaped groove matched with the beads is arranged on the cover plate, and the bottoms of the beads penetrate through the arc-shaped groove and extend to the outer part of one side of the cover plate, which is far away from the rolling chamber; the couplant is taken out from a gap between the rolling ball and the cover plate by the rolling ball and then coated on the part to be inspected of the inspected person, so that the using amount of the couplant is further reduced, meanwhile, the uniformity of coating the couplant can be increased by the rolling ball, and the accuracy of color ultrasonic imaging is further improved; when the handheld shell moves at the examined position of the examined person, the moving ball rolls due to friction, at the moment, the couplant flowing out of the transfer chamber reaches the rolling chamber, the rolling chamber is taken out along with the rolling of the moving ball and is smeared at the examined position, the couplant can only flow out of a gap between the moving ball and the cover plate, the examined position is guaranteed to be evenly smeared, the using amount of the couplant is further controlled, when the ambient temperature is lower, a small amount of the couplant is rapidly heated along with the body temperature, and the waste of the couplant and the discomfort brought to the examined person are further reduced.

Preferably, one side of the moving ball is provided with a friction wheel; a thrust plate is connected in a clamping groove formed in the side wall of the blanking hole in a sliding mode, a swing rod is arranged on the outer shell on one side, away from the blanking hole, of the thrust plate, the middle of the swing rod is hinged to the outer shell, a rail is arranged on one side, close to the thrust plate, of the swing rod, a clamping pin is arranged on the thrust plate, corresponds to the rail, is sleeved in the rail, and is connected with the rail in a sliding mode; the swing rod is matched with the bayonet lock and used for opening or closing the blanking hole; a sliding hole is formed in one end, far away from the rail, of the swing rod, a sliding column is connected in the sliding hole in a sliding mode, a spring is arranged between the sliding column and the bottom of the sliding hole and used for extruding the sliding column and enabling the sliding column to abut against the friction wheel; the piston rod is in clearance fit with the piston cylinder; the oscillating bar is driven to rotate by the friction wheel, so that the couplant cannot be extruded out when the balls rotate reversely, and the using amount of the couplant is further saved; when the moving ball rotates clockwise and forwards, the friction wheel drives the swing rod to swing anticlockwise, so that the rail on the swing rod drives the bayonet lock, and further drives the thrust plate to open the feeding hole, at the moment, the coupling agent in the transfer chamber flows out of the feeding hole normally and is uniformly coated on a detected part along with the moving ball, after the coating of the detected part is finished, the moving ball rotates anticlockwise, the friction wheel extrudes the sliding column, so that the sliding column shrinks towards the sliding hole, when the friction wheel continues to rotate reversely, the friction wheel drives the swing rod to rotate clockwise, then the sliding column is ejected and is in sliding contact with the friction wheel, at the moment, the swing rod drives the rail and further drives the bayonet lock to move, so that the feeding hole is closed after the thrust plate slides rightwards, the coating of the coupling agent can be stopped, and the use amount of the coupling agent is further saved; at the moment, when the piston rod slides in the piston cylinder and extrudes the couplant, the couplant leaks from a gap between the piston rod and the piston cylinder, so that the pressure of the couplant in the connecting pipe and the transfer chamber is not increased, and the service life of the connecting pipe is prolonged.

Preferably, a group of springs are arranged between the cover plate and the bottom of the rolling chamber, and a group of pressing plates are arranged on one side of the cover plate, which is far away from the rolling chamber; the pressing plate is fixedly connected with the shell, a threaded hole is formed in one side, close to the cover plate, of the pressing plate, a pin is connected in the threaded hole in a threaded mode and used for adjusting a gap between the cover plate and the moving ball, and the using amount of a coupling agent is further saved; through the degree of depth of adjusting the pin in the screw hole, can cooperate the spring to adjust the apron and walk the gap between the pearl for walk the couplant that the pearl brought out suitable dose, further improve the availability factor of couplant, and then further reduce the waste of couplant and the discomfort that brings for the person of being examined.

Preferably, the cross section of the moving bead is sequentially provided with an annular elastic sleeve, an annular roller and a cylindrical cavity from outside to inside, a group of first blind holes are uniformly distributed on the periphery of the roller along the circumference of the radius direction, a first magnetic block is connected in the first blind holes in a sliding manner, a second magnetic block is arranged in the cavity, a support is arranged on the inner wall of the cavity, one end of the support, far away from the roller, is coincided with the center of the cavity, and one end of the support, far away from the roller, is rotatably connected with the second magnetic; the magnetic pole of one end of the first magnetic block close to the center of the cavity is the same as the magnetic pole of one side of the second magnetic block far away from the center of the cavity; the elastic sleeve continuously protrudes and massages the detected part through the repulsion action of the first magnetic block and the second magnetic block, so that the infiltration degree of the couplant and the detected part is further increased, and the accuracy of color ultrasonic imaging is further improved; when the moving ball rotates, the second magnetic block is connected with the tail end of the support in a rotating mode, the second magnetic block is always kept to be vertically downward under the action of self gravity, the first magnetic block is driven to do circular motion when the elastic sleeve and the roller rotate, when the first magnetic block rotates to the position corresponding to the second magnetic block, the magnetic poles on one sides, close to each other, of the first magnetic block and the second magnetic block are the same, repulsive force is generated, the first magnetic block slides in the first blind hole towards the direction close to the elastic sleeve, the elastic sleeve is driven to protrude, the contact and massage effects of the elastic sleeve and a detected part are further improved, a coupling agent and the skin of the detected part are made to be better soaked, and the accuracy of color Doppler ultrasound imaging is further improved.

Preferably, a second blind hole is formed between every two adjacent first blind holes, and a third magnetic block is connected in the second blind hole in a sliding manner; the magnetism of the third magnetic block is greater than that of the first magnetic block; the elastic layer is protruded in different heights by the aid of different magnetism of the first magnetic block and the third magnetic block, so that the infiltration degree of the couplant and a detected part is further increased, and the accuracy of color ultrasound imaging is further improved; because the magnetism size of a magnetic path is different with No. three magnetic paths for the elastic sleeve produces the protrusion of difference in height at the rolling in-process, and then makes the position of being examined receive the different pressure of dynamics, further increases the massage effect of elastic sleeve to the position of being examined, further guarantees the abundant infiltration with the position skin of being examined of couplant when extruding less dose of couplant, thereby further reduces the waste of couplant and the discomfort that brings for the person of being examined.

The invention has the following beneficial effects:

1. according to the medical color Doppler ultrasound probe, the probe block slides into the shell along the sliding groove after being pressed, and the piston cylinder extrudes a certain amount of couplant through the transmission of the cross rod and the piston rod to be coated on a detected part, so that the using amount of the couplant is controlled, the waste of the couplant is reduced, and the discomfort and the cleaning work caused by excessive couplant adhered to a detected body are reduced.

2. According to the medical color Doppler ultrasound probe, the depth of the threaded hole of the pin is adjusted, and the gap between the cover plate and the moving ball can be adjusted by matching with the spring, so that the moving ball brings out a proper amount of couplant, the use efficiency of the couplant is further improved, and the waste of the couplant and discomfort brought to a subject are further reduced.

Drawings

The invention will be further explained with reference to the drawings.

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a cross-sectional view of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

FIG. 4 is an enlarged view of a portion of FIG. 2 at B;

FIG. 5 is an enlarged view of a portion of FIG. 2 at C;

FIG. 6 is a cross-sectional view of a ball of the present invention;

in the figure: the device comprises a shell 1, a sliding chute 12, a detection block 13, a storage chamber 14, a charging opening 15, a transfer chamber 16, a rolling chamber 17, a blanking hole 18, an elastic scraper 19, a piston cylinder 2, a piston rod 21, a cross rod 22, a communicating hole 23, a connecting pipe 24, a moving bead 3, a cover plate 31, an arc-shaped groove 32, a friction wheel 4, a clamping groove 41, a thrust plate 42, a swing rod 43, a rail 44, a clamping pin 45, a sliding hole 46, a sliding column 47, a pressing plate 5, a threaded hole 51, a pin 52, an elastic sleeve 33, a roller 34, a cavity 35, a first blind hole 36, a first magnetic block 37, a second magnetic block 38, a support 39, a second blind hole 310 and a third magnetic.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1 to 6, the medical color Doppler ultrasound probe comprises a shell 1, wherein an opening is formed at the bottom of the shell 1; a sliding chute 12 formed in the shell 1 is connected with a detection block 13 in a sliding manner, and the detection block 13 is electrically connected with receiving equipment through a flexible lead; a storage chamber 14 for storing a couplant is arranged at the upper part of one side, far away from the chute 12, in the shell 1, and a charging opening 15 is arranged at the upper part of the storage chamber 14; a transfer chamber 16 is arranged on the inner wall of the shell 1 below the storage chamber 14, a rolling chamber 17 with an arc-shaped cross section is arranged below the transfer chamber 16, and the transfer chamber 16 is communicated with the rolling chamber 17 through a discharging hole 18; elastic scrapers 19 for scraping off the coupling agent are arranged on two sides of the bottom of the rolling chamber 17; the bottom of the storage chamber 14 is provided with a piston cylinder 2, a piston rod 21 is connected in the piston cylinder 2 in a sliding manner, and one end of the piston rod 21 extending out of the piston cylinder 2 is fixedly connected with the detection block 13 through a cross rod 22; a return spring is arranged in a rodless cavity of the piston cylinder 2, the top of the rodless cavity of the piston cylinder 2 is communicated with the storage chamber 14 through a communicating hole 23, and the rodless cavity of the piston cylinder 2 is communicated with the transfer chamber 16 through a connecting pipe 24 arranged on the side wall of the piston cylinder 2; the connecting pipe 24 and the communicating hole 23 are both provided with a one-way valve; the piston cylinder 2 extrudes a certain amount of couplant by pressing the detection block 13, and the couplant is smeared on the part to be inspected of the inspected person by the elastic scraper 19, so that the use amount of the couplant is reduced, and the discomfort degree of the inspected person is reduced; when the color ultrasonic probe works, a medical worker holds the shell 1 of the color ultrasonic probe by hand, presses the shell 1 on a preset detected part on a detected body, the detecting block 13 slides to the shell 1 along the chute 12 after being pressed, the detecting block 13 drives the cross rod 22 to further drive the piston rod 21 to slide in the piston cylinder 2, so that a certain amount of couplant is extruded out of the piston cylinder 2, then the couplant enters the transfer chamber 16 through the connecting pipe 24, then slowly flows into the rolling chamber 17 through the blanking hole 18 under the action of gravity, finally drops on the detected part at the corresponding position of the rolling chamber 17, then the shell 1 is moved, the couplant is smeared on the detected part under the drive of the elastic scraper 19, and at the moment, the detecting block 13 can obtain a clear color ultrasonic image; through the constant volume of piston cylinder 2 for extrude quantitative couplant at every turn, and then the use amount of control couplant reduces the waste of couplant, reduces discomfort and the cleaning work that the too much couplant of adhesion brought on the person of being examined simultaneously.

In one embodiment of the present invention, a cylindrical ball 3 is connected to the rolling chamber 17 in a rolling manner; a cover plate 31 for preventing the beads 3 from falling is arranged below the rolling chamber 17, an arc-shaped groove 32 matched with the beads 3 is arranged on the cover plate 31, and the bottom of the beads 3 penetrates through the arc-shaped groove 32 and extends to the outside of one side of the cover plate 31 far away from the rolling chamber 17; the couplant is taken out from a gap between the moving ball 3 and the cover plate 31 through the rolling moving ball 3 and then coated on the part to be inspected of the inspected person, so that the using amount of the couplant is further reduced, meanwhile, the uniformity of coating the couplant can be increased through the rolling moving ball 3, and the accuracy of color ultrasonic imaging is further improved; when the handheld shell 1 moves at the examined part of the examined person, the moving ball 3 rolls due to friction, at the moment, the couplant flowing out of the transfer chamber 16 reaches the rolling chamber 17, is taken out of the rolling chamber 17 along with the rolling of the moving ball 3 and is smeared at the examined part, the couplant can only flow out of the gap between the moving ball 3 and the cover plate 31, the used amount of the couplant is further controlled while the examined part is guaranteed to be evenly smeared, so that when the ambient temperature is low, a small amount of the couplant is rapidly heated along with the body temperature, and the waste of the couplant and the discomfort brought to the examined person are further reduced.

As an embodiment of the invention, one side of the moving ball 3 is provided with a friction wheel 4; a thrust plate 42 is connected in a sliding manner in a clamping groove 41 formed in the side wall of the blanking hole 18, a swing rod 43 is arranged on the outer shell 1 on one side, away from the blanking hole 18, of the thrust plate 42, the middle of the swing rod 43 is hinged to the outer shell 1, a rail 44 is arranged on one side, close to the thrust plate 42, of the swing rod 43, a bayonet 45 is arranged on the thrust plate 42, the position, corresponding to the rail 44, of the thrust plate 42, the bayonet 45 is sleeved in the rail 44, and the bayonet 45 is connected with; the swing rod 43 is matched with a bayonet 45 and used for opening or closing the blanking hole 18; a sliding hole 46 is formed in one end, far away from the rail 44, of the swing rod 43, a sliding column 47 is connected in the sliding hole 46 in a sliding mode, a spring is arranged between the sliding column 47 and the bottom of the sliding hole 46, and the spring is used for extruding the sliding column 47 and enabling the sliding column 47 to abut against the friction wheel 4; the piston rod 21 is in clearance fit with the piston cylinder 2; the friction wheel 4 drives the swing rod 43 to rotate, so that the couplant cannot be extruded out when the moving balls 3 rotate reversely, and the use amount of the couplant is further saved; when the ball 3 rotates clockwise, the friction wheel 4 drives the swing rod 43 to swing counterclockwise, so that the rail 44 on the swing link 43 drives the bayonet 45 and further drives the thrust plate 42 to open the blanking hole 18, at this time, the couplant in the transfer chamber 16 flows out of the blanking hole 18 normally and then is uniformly coated on the detected part along with the moving ball 3, after the coating of the detected part is finished, when the ball 3 rotates reversely in the counterclockwise direction, the friction wheel 4 presses the sliding column 47, so that the sliding column 47 contracts into the sliding hole 46, when the friction wheel 4 continues to rotate reversely, the friction wheel 4 drives the swing rod 43 to rotate clockwise, then the sliding column 47 pops out and then is in sliding contact with the friction wheel 4, at this time, the swing rod 43 drives the track 44, further driving the bayonet lock 45 to move, so that the thrust plate 42 slides rightwards and then closes the blanking hole 18, the coating of the coupling agent can be stopped, and the using amount of the coupling agent is further saved; at this time, when the piston rod 21 slides in the piston cylinder 2 and extrudes the couplant, the couplant leaks from a gap between the piston rod 21 and the piston cylinder 2, so that the pressure of the couplant in the connecting pipe 24 and the transfer chamber 16 is not increased, and the service life of the connecting pipe 24 is prolonged.

As an embodiment of the invention, a set of springs is arranged between the cover plate 31 and the bottom of the rolling chamber 17, and a set of pressing plates 5 is arranged on one side of the cover plate 31 away from the rolling chamber 17; the pressing plate 5 is fixedly connected with the shell 1, a threaded hole 51 is formed in one side, close to the cover plate 31, of the pressing plate 5, a pin 52 is connected in the threaded hole 51 in a threaded mode, the pin 52 is used for adjusting the gap between the cover plate 31 and the ball 3, and the using amount of a coupling agent is further saved; by adjusting the depth of the pin 52 in the threaded hole 51, the spring can be matched to adjust the gap between the cover plate 31 and the moving ball 3, so that the moving ball 3 brings out the couplant with proper dosage, the use efficiency of the couplant is further improved, and the waste of the couplant and the discomfort brought to the examinee are further reduced.

As an implementation mode of the invention, the cross section of the moving ball 3 is sequentially provided with an annular elastic sleeve 33, an annular roller 34 and a cylindrical cavity 35 from outside to inside, a group of first blind holes 36 are uniformly distributed on the periphery of the roller 34 along the circumference of the radius direction, a first magnetic block 37 is connected in the first blind holes 36 in a sliding manner, a second magnetic block 38 is arranged in the cavity 35, the inner wall of the cavity 35 is provided with a bracket 39, one end of the bracket 39, far away from the roller 34, is coincided with the center of the cavity 35, and one end of the bracket 39, far away from the roller 34, is rotatably connected with the second magnetic block; the magnetic pole of one end of the first magnetic block 37 close to the center of the cavity 35 is the same as the magnetic pole of one side of the second magnetic block 38 far away from the center of the cavity 35; the elastic sleeve 33 continuously protrudes and massages the detected part through the repulsion action of the first magnetic block 37 and the second magnetic block 38, so that the infiltration degree of the couplant and the detected part is further increased, and the accuracy of color ultrasound imaging is further improved; when the moving ball 3 rotates, the second magnetic block 38 is rotatably connected with the tail end of the bracket 39, the second magnetic block 38 is always kept vertically downward under the action of self gravity, at the moment, the elastic sleeve 33 and the roller 34 rotate to drive the first magnetic block 37 to do circular motion, when the first magnetic block 37 rotates to the position corresponding to the second magnetic block 38, the first magnetic block 37 and the second magnetic block 38 are same in magnetic pole at one side close to each other to generate repulsive force, so that the first magnetic block 37 slides towards the direction close to the elastic sleeve 33 in the first blind hole 36 to further drive the elastic sleeve 33 to protrude, the contact and massage effects of the elastic sleeve 33 and a detected part are further increased, the couplant is better soaked with the skin of the detected part, and the accuracy of color ultrasonography is further improved.

As an embodiment of the present invention, a second blind hole 310 is formed between adjacent first blind holes 36, and a third magnetic block 311 is slidably connected in the second blind hole 310; the third magnetic block 311 is more magnetic than the first magnetic block 37; the magnetic sizes of the first magnetic block 37 and the third magnetic block 311 are different, so that the elastic layer generates protrusions with different heights, the infiltration degree of the couplant and the detected part is further increased, and the accuracy of color ultrasound imaging is further improved; because the magnetism size of magnetic path No. one 37 and magnetic path No. three 311 is different for elastic sleeve 33 produces the protrusion of difference in height at the rolling in-process, and then makes the portion of being examined receive the different pressure of dynamics, further increases elastic sleeve 33 and to the massage effect of portion of being examined, further guarantees the abundant infiltration with the portion of being examined skin of couplant when extruding less dosage of couplant, thereby further reduces the waste of couplant and the discomfort that brings for the person of being examined.

When the color ultrasonic probe works, a medical worker holds the shell 1 of the color ultrasonic probe by hand, presses the shell 1 on a preset detected part on a detected body, the detecting block 13 slides to the shell 1 along the chute 12 after being pressed, the detecting block 13 drives the cross rod 22 to further drive the piston rod 21 to slide in the piston cylinder 2, so that a certain amount of couplant is extruded out of the piston cylinder 2, then the couplant enters the transfer chamber 16 through the connecting pipe 24, then slowly flows into the rolling chamber 17 through the blanking hole 18 under the action of gravity, finally drops on the detected part at the corresponding position of the rolling chamber 17, then the shell 1 is moved, the couplant is smeared on the detected part under the drive of the elastic scraper 19, and at the moment, the detecting block 13 can obtain a clear color ultrasonic image; by the constant volume of the piston cylinder 2, a certain amount of couplant is extruded each time, so that the use amount of the couplant is controlled, the waste of the couplant is reduced, and discomfort and cleaning work caused by excessive couplant adhered to a detected person are reduced; when the handheld shell 1 moves at a detected part on a detected body, the moving ball 3 rolls due to friction, at the moment, the couplant flowing out of the transfer chamber 16 reaches the rolling chamber 17, is taken out of the rolling chamber 17 along with the rolling of the moving ball 3 and is smeared on the detected part, the couplant can only flow out of a gap between the moving ball 3 and the cover plate 31, the detected part is guaranteed to be evenly smeared, and meanwhile, the using amount of the couplant is further controlled, so that a small amount of couplant is rapidly heated along with the body temperature when the ambient temperature is low, and the waste of the couplant and the discomfort brought to the detected body are further reduced; when the ball 3 rotates clockwise, the friction wheel 4 drives the swing rod 43 to swing counterclockwise, so that the rail 44 on the swing link 43 drives the bayonet 45 and further drives the thrust plate 42 to open the blanking hole 18, at this time, the couplant in the transfer chamber 16 flows out of the blanking hole 18 normally and then is uniformly coated on the detected part along with the moving ball 3, after the coating of the detected part is finished, when the ball 3 rotates reversely in the counterclockwise direction, the friction wheel 4 presses the sliding column 47, so that the sliding column 47 contracts into the sliding hole 46, when the friction wheel 4 continues to rotate reversely, the friction wheel 4 drives the swing rod 43 to rotate clockwise, then the sliding column 47 pops out and then is in sliding contact with the friction wheel 4, at this time, the swing rod 43 drives the track 44, further driving the bayonet lock 45 to move, so that the thrust plate 42 slides rightwards and then closes the blanking hole 18, the coating of the coupling agent can be stopped, and the using amount of the coupling agent is further saved; at the moment, when the piston rod 21 slides in the piston cylinder 2 and extrudes the couplant, the couplant leaks from a gap between the piston rod 21 and the piston cylinder 2, so that the pressure of the couplant in the connecting pipe 24 and the transfer chamber 16 is not increased, and the service life of the connecting pipe 24 is prolonged; the depth of the pin 52 in the threaded hole 51 can be adjusted, namely, the pin can be matched with a spring to adjust a gap between the cover plate 31 and the moving ball 3, so that the moving ball 3 brings out a proper dosage of couplant, the use efficiency of the couplant is further improved, and the waste of the couplant and discomfort brought to a subject are further reduced; when the moving ball 3 rotates, the second magnetic block 38 is rotatably connected with the tail end of the bracket 39, the second magnetic block 38 is always kept vertically downward under the action of self gravity, at the moment, the elastic sleeve 33 and the roller 34 rotate to drive the first magnetic block 37 to do circular motion, when the first magnetic block 37 rotates to a position corresponding to the second magnetic block 38, the magnetic poles at one side, close to each other, of the first magnetic block 37 and the second magnetic block 38 are the same to generate repulsive force, so that the first magnetic block 37 slides towards the direction close to the elastic sleeve 33 in the first blind hole 36, the elastic sleeve 33 is driven to protrude, the contact and massage effects of the elastic sleeve 33 and a detected part are further increased, the couplant is better soaked with the skin of the detected part, and the accuracy of color ultrasonography is further improved; because the magnetism size of magnetic path No. one 37 and magnetic path No. three 311 is different for elastic sleeve 33 produces the protrusion of difference in height at the rolling in-process, and then makes the portion of being examined receive the different pressure of dynamics, further increases elastic sleeve 33 and to the massage effect of portion of being examined, further guarantees the abundant infiltration with the portion of being examined skin of couplant when extruding less dosage of couplant, thereby further reduces the waste of couplant and the discomfort that brings for the person of being examined.

The front, the back, the left, the right, the upper and the lower are all based on figure 1 in the attached drawings of the specification, according to the standard of the observation angle of a person, the side of the device facing an observer is defined as the front, the left side of the observer is defined as the left, and the like.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the scope of the present invention.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.