Disclosure of Invention
The invention aims to provide a rotary locking device which is suitable for a carotid scanning ultrasonic device and can solve the problems that the rotary locking device in the existing carotid scanning ultrasonic device is inconvenient to operate and easy to miss operation by a doctor.
To achieve the above object of the present invention, a proposed rotation locking device of the present invention includes:
the invention also provides a rotary locking device which is suitable for a carotid scanning ultrasonic device, wherein the carotid scanning ultrasonic device comprises a head cover and a probe scanning device, and the rotary locking device is arranged between the side wall of the head cover and the probe scanning device; the rotation locking device comprises a first locking part and a second locking part which can be locked with each other, and the first locking part is fixedly connected with the side wall; the second locking part is connected with the probe scanning device; wherein, in the power-on state, the first locking part and the second locking part are locked with each other, so that the probe scanning device is locked on the side wall; and in the power-off state, the probe scanning device rotates relative to the side wall.
As an optional technical solution, the first locking part is an electromagnet, and the second locking part is a locking iron, wherein in an energized state, the electromagnet and the locking iron are attracted.
As an optional technical solution, the locking device further comprises a limiting block, a rotating shaft sleeve and a positioning piece, wherein the rotating shaft sleeve is located between the limiting block and the positioning piece, the limiting block is fixedly connected with the positioning piece, and the second locking portion is rotatably arranged between the limiting block and the positioning piece.
As an optional technical solution, the first locking portion is fixedly connected with the side wall through the limiting block; the second locking part is connected with the rotating shaft sleeve, and the rotating shaft sleeve is fixedly connected with the probe scanning device.
As an optional technical solution, the limiting block comprises at least one limiting protrusion, and the limiting protrusion protrudes towards the second locking part; the second locking portion includes at least one rotating portion; wherein the rotating part rotates at the outer side of the first locking part, and the limiting protrusion limits the rotating angle of the rotating part.
As an optional technical scheme, the at least one limiting protrusion comprises three limiting protrusions, and the three limiting protrusions are uniformly arranged along the circumferential direction of the limiting block; the at least one rotating part comprises three rotating parts which are uniformly arranged along the circumferential direction of the second locking part; wherein, arbitrary rotation part rotates between two adjacent spacing archs.
As an optional technical solution, the locking device further includes a first friction plate and a second friction plate disposed between the stopper and the second locking portion.
As an optional technical scheme, the first friction plate is provided with a first hollow part, the second friction plate is provided with a second hollow part, and at least one limiting protrusion on the limiting block sequentially penetrates through the first hollow part, the second hollow part and the positioning plate to be fixedly connected.
As an optional technical solution, the friction plate further includes elastic cotton, and the elastic cotton is sandwiched between the extension portion of the first locking portion and the first friction plate.
As an optional technical solution, in an energized state, the first locking portion and the second locking portion are tightly attached to each other; in a power-off state, a gap portion is provided between the first locking portion and the second locking portion.
As an optional technical scheme, the probe scanning device comprises a scanning device sleeve, a lead and a wire sleeve, wherein the lead is accommodated between the wire sleeve and the outer side of the scanning device sleeve.
As an optional technical scheme, the scanning device sleeve and the rotating shaft sleeve are made of aluminum alloy materials.
The invention also provides an ultrasonic device comprising the rotation locking device.
Compared with the prior art, the invention provides a rotary locking device and an ultrasonic device with the same, wherein the rotary locking device is positioned between a head cover of the ultrasonic device and a scanning probe assembly, the rotary locking device enables the scanning probe assembly to be locked at the outer side of the side wall of the head cover in a power-on state, and the rotary locking device has the advantage of large rotary torsion and realizes stepless locking; the rotation locking device enables the scanning probe assembly to rotate relative to the side wall of the head sleeve in a power-off state, has the advantage of small rotating force, and realizes stepless rotation.
The invention is described in detail below with reference to the drawings and specific examples, but the invention is not limited thereto.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to embodiments and accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
FIG. 1 is a schematic view of a carotid scanning ultrasound device of the present invention; FIG. 2 is a schematic view of the carotid scanning ultrasound device of FIG. 1 during scanning; FIG. 3 is a schematic sectional view of a portion of the carotid scanning ultrasound apparatus of FIG. 2; fig. 4 is an exploded view of the rotational locking device of the carotid scanning ultrasound device of fig. 1.
The invention provides a carotid scanning ultrasonic device 100, which comprises a rotation locking device 20, wherein the rotation locking device 20 is positioned between a head cover 30 and a scanning probe assembly 10, the rotation locking device 20 enables the scanning probe assembly 10 to be locked at the outer side of a side wall 32 of the head cover 30 in a power-on state, and the rotation locking device 20 enables the scanning probe assembly 10 to rotate relative to the side wall 32 of the head cover 30 in a power-off state.
As shown in fig. 1 to 4, the carotid scanning ultrasound device 100 comprises a probe scanning device 10, a rotation locking device 20, a headgear 30, a headgear neck locking device 40 and a headgear horizontal locking device 50 which are connected with each other, wherein the probe scanning device 10 is symmetrically arranged on both sides of the headgear 30; the rotation locking device 20 is located between the head cover 30 and the probe scanning device 10, and the first locking part 3 and the second locking part 4 in the rotation locking device 20 are interlocked and timed, so that the probe scanning device 10 cannot rotate relative to the head cover 30.
A head cover neck locking device 40 is arranged in the accommodating part 31 in the head cover 30; the top of the head cover 30 is provided with a head cover horizontal locking device 50; the headgear neck locking device 40 and the headgear horizontal locking device 50 can adjust the size of the headgear 30 to adapt the headgear 30 to different head sizes of patients.
As shown in fig. 4, the head cover 30 includes a pair of side walls 32, a space between the pair of side walls 32 defines the accommodating portion 31, and the probe scanning device 10 and the rotation locking device 20 are respectively disposed on outer sides of the side walls 32, wherein the outer sides of the side walls 32 are far away from the accommodating portion 31.
Fig. 5 is a schematic view of the rotation locking device of fig. 4.
As shown in fig. 4 and 5, the first locking portion 3 of the rotation locking device 20 is close to the outer side of the side wall 32 and is fixedly connected to the side wall 32. In a preferred embodiment, the first locking portion 3 is attached to the side wall 32 by a screw lock.
The second locking part 4 of the rotation locking device 20 is close to the probe scanning device 10, and when the first locking part 3 and the second locking part 4 are not interlocked, a gap exists between the second locking part 4 and the first locking part 3, so that the second locking part 4 can rotate relative to the first locking part 3. In a preferred embodiment, the second locking portion 4 is a locking iron, and the first locking portion 3 is an electromagnet, wherein when the first locking portion 3 is in an energized state, the second locking portion 4 is magnetically attracted to the first locking portion 3, so that the probe scanning device 10 cannot rotate relative to the head cover 30.
The rotation locking device 20 further includes a stopper 7, and the stopper 7 is used for limiting a rotation angle of the second locking portion 4 with respect to the first locking portion 3. The stopper 7 is interposed between the first locking portion 3 and the second locking portion 4, and the stopper 7 includes at least one stopper projection 71, and the at least one stopper projection 71 protrudes toward the second locking portion 4. At least one rotating part 41 is arranged on the second locking part 4 corresponding to at least one limiting lug 71, and the rotating part 41 is limited by the limiting lug 71 after rotating for a certain angle, so that the second locking part 4 stops rotating.
In this embodiment, the number of the at least one limiting protrusion 71 is three, and the three limiting protrusions 71 are uniformly arranged along the circumferential direction of the limiting block 7; correspondingly, the number of the at least one rotating portion 41 is three, and the three rotating portions 41 are uniformly arranged along the circumferential direction of the second locking portion 4; wherein, when the second locking part 4 is assembled with the stopper 7 toward the side of the probe scanning device, any one of the rotating parts 41 is restricted between the two stopper protrusions 71. That is, any one of the rotating portions 41 can only rotate between the two stopper projections 71. When the stopper 7 has a circular structure and the three stopper protrusions 71 are uniformly arranged along the circumferential direction of the stopper 7, the maximum rotation angle of the rotating portion 41 is 120 ° in the clockwise or counterclockwise direction.
In other embodiments of the present invention, the limiting blocks may also be other non-circular structures, and the number and configuration manner of at least one limiting block may be configured according to actual needs.
The stopper 7 includes a stopper hole 73, and the first locking portion 3 is fitted in the stopper hole 73.
The rotation locking device 20 further comprises a rotation shaft sleeve 1, the rotation shaft sleeve 1 is clamped between the second locking portion 4 and a scanning device sleeve 13 of the probe scanning device 10, and the rotation shaft sleeve 1 and the scanning device sleeve 13 are locked with each other. The rotating shaft sleeve 1 and the second locking portion 4 are locked and fixed to each other, preferably, at least one limiting groove 101 is formed in the rotating shaft sleeve 1, the at least one limiting groove 101 corresponds to the at least one rotating portion 41, the rotating portion 41 enters the limiting groove 101, and the rotating portion 41 is locked and fixed in the limiting groove 101 through a screw.
In practical operation, by rotating the scanning device sleeve 13 fixedly connected with the rotating shaft sleeve 1 and the probe scanning device 10, the scanning device sleeve 13 drives the rotating shaft sleeve 1 and the second locking part 4 to rotate together, and the rotating part 41 of the second locking part 4 rotates between any two limiting lugs 71. When the probe 16 of the probe scanning device 10 scans the inspection target (carotid artery), the second locking part 4 and the first locking part 3 are operated to be locked with each other, and the probe scanning assembly 10 does not rotate relative to the head cover 30 any more.
The rotary locking device 20 further comprises a positioning sheet 2, the positioning sheet 2 is clamped between the rotary shaft sleeve 1 and the scanning device sleeve 13 of the probe scanning assembly 10, the positioning sheet 2 comprises at least one positioning portion 21, the at least one positioning portion 21 corresponds to the at least one limiting protrusion 71 in a one-to-one manner, a first locking hole 72 is formed in the limiting protrusion 71, a second locking hole 22 is formed in the positioning portion 21, and a screw (not shown) sequentially penetrates through the second locking hole 22 and the rotary shaft sleeve 1 to be inserted into the first locking hole 72 to lock the positioning sheet 2 on the limiting block 7. Corresponding to the screw, a through hole is arranged on the rotary shaft sleeve 1, and the through hole is provided with a smooth inner wall, so that the rotary shaft sleeve 1 can rotate relative to the screw.
As can be seen from the above, the positioning portion 22 of the positioning piece 2 and the limiting protrusion 71 of the limiting block 7 are locked with each other, and the limiting protrusion 71 protrudes toward the positioning piece 2, so that an accommodating space is formed between the limiting block 7 and the positioning piece 2, the second locking portion 4 and the rotating shaft sleeve 1 are located in the accommodating space, and the second locking portion 4 and the rotating shaft sleeve 1 can rotate in the accommodating space. In other words, the probe scanning device 10 is rotatably connected to the outer side of the sidewall 31 of the head cover 30 by the interaction between the stopper 7, the rotary sleeve 1 and the positioning piece 2.
In a preferred embodiment, the number of the at least one positioning portion 21 is three, and the three positioning portions 22 are uniformly arranged along the circumferential direction of the positioning sheet 21.
In a preferred embodiment, the positioning plate 2 further comprises a positioning plate seat 9, and the positioning plate 2 is fixed on the positioning plate seat 9. The spacer seat 9 is fixedly connected with the side wall 31, so that the spacer 2 is fixedly connected with the side wall 31.
As shown in fig. 3 to 5, the rotation locking device 20 further includes a first friction plate 5 and a second friction plate 6 for increasing friction, wherein the first friction plate 5 and the second friction plate 6 are provided between the first locking portion 3 and the second locking portion 4. Since the first locking portion 3 is disposed in the stopper hole 73 of the stopper 7, the first friction plate 5 and the second friction plate 6 are disposed substantially between the stopper 7 and the second locking portion 4.
In a preferred embodiment, elastic cotton 8 is arranged between the first friction plate 5 and the outer side of the side wall 31, and the elastic cotton 8 is sandwiched between the extension part 301 of the first locking part 3 and the second friction plate 6.
In a preferred embodiment, the first friction plate 5 includes a first hollow portion 51, the second friction plate 6 includes a second hollow portion 61, and the limiting protrusion 71 of the limiting block 7 sequentially passes through the first hollow portion 51 and the second hollow portion 61 to be locked with the positioning plate 2 on the right side of the rotating shaft sleeve 1.
First friction plate 5 and second friction plate 6 are, for example, any structure and/or material that increases friction. In a preferred embodiment, the first friction plate 5 and the second friction plate 6 are asbestos fiber friction plates, graphite friction plates, carbon fiber friction plates, etc.
The first locking portion 3 (electromagnet) is locked with the second locking portion 4 (locking iron) after being electrified, the first friction plate 5 and the second friction plate 6 are pressed through magnetic attraction between the electromagnet and the locking iron, meanwhile, the elastic cotton 8 and the first friction plate 5 are further pressed through the magnetic attraction, the pressing force between the first friction plate 5 and the second friction plate 6 is increased through the elastic cotton 8, and the torsion of the probe scanning device 10 is increased. The first friction plate 5 and the second friction plate 6 also increase the contact area between the probe scanning device 10 and the side wall 32 of the head cover 30, so that the surface friction force when the two contact each other is increased, and further the torsion between the two is increased, thereby realizing that the probe scanning device 10 is stably locked at the outer side of the side wall 32 of the head cover 30. Therefore, the magnetic attraction of the electromagnet does not need to be too large to achieve the desired locking effect, and meanwhile, the electromagnet and the locking iron have the characteristics of small occupied space and light weight, which is beneficial to reducing the volume and the weight of the whole ultrasonic device 100 and obtaining a more beautiful ultrasonic device 100.
As can be seen from the above description, the rotation locking device 20 provided by the present invention includes the first locking portion 3 and the second locking portion 4 which are magnetically attracted and locked to each other in the power-on state, so that the probe scanning device 10 can be locked at the outer side of the sidewall of the head cover; and, in the power-off state, the first locking part 3 and the second locking part 4 are unlocked, and the probe scanning device 10 is turned so that the second locking part 4 can be arbitrarily rotated between the first locking part 3 and the positioning piece 2.
In a preferred embodiment, a slight clearance is provided between the outer side surface of the first locking portion 3 and the inner side surface of the second locking portion 4. In the power-on state, the second locking portion 4 compresses the first friction plate 5 and the second friction plate 6, and is magnetically attracted to the outer side surface of the first locking portion 3, the first friction plate 5, the second friction plate 6 and the second locking portion 4 are tightly attached to each other, the contact area between the probe scanning device 10 and the side wall 32 of the head cover 30 is increased through the first friction plate 5 and the second friction plate 6, so that the rotation torque is increased, and the probe scanning device 10 and the side wall 32 of the head cover 30 are locked. The first locking part 3 and the second locking part 4 are mutually attracted and locked by being electrified in any state, so that stepless locking of the rotary locking structure is realized.
Wherein, under the outage state, the second locking portion 4 and the first locking portion 3 are unlocked, because there is a tiny clearance portion between the inside surface of the second locking portion 4 and the first locking portion 3, rotate probe scanning device 10 and make the second locking portion 4 rotate between the first locking portion 3 and the locating piece 2 at will, and the revolving force is very little, is convenient for the doctor to operate, and does not have the gear restriction to realize stepless rotation during the rotation.
Further, the rotation locking device 20 of the present invention also has the disadvantages of low precision required for the whole structure and convenient production and manufacture; the torsion in the locking state can be ensured to be unchanged; not easy to wear after long-term use, etc.
In a preferred embodiment, the power switch of the rotational lock 20 and the scanning switch of the probe scanning device 10 may be integrated into one electronic switch. In practical use, when a doctor adjusts the position of the probe, the electronic switch is pressed, the first locking part 3 and the second locking part 4 of the rotary locking device 20 are locked, meanwhile, the probe scanning device 10 starts scanning, the electronic switch is automatically switched off after scanning is finished, and the first locking part 3 and the second locking part 4 are unlocked; the situation that a doctor forgets to execute the locking operation step after adjusting the position of the probe is avoided, and the scanning efficiency and the success rate are improved.
As shown in fig. 3, the probe scanning device 10 includes a vertically extending scanning device housing 13 interconnected with a horizontally extending horizontally movable mount 14. The inside of the scanning device sleeve 13 is provided with a push rod 12, and the bottom of the push rod 12 is connected with a horizontal moving seat 14. The outer side of the scanning device sleeve 13 is provided with a wire sleeve 18, a lead 17 is arranged between the wire sleeve 18 and the scanning device sleeve 13, one end of the lead 17 is electrically connected with the switch 11, and the other end of the lead 17 is electrically connected with the extension part 31 of the first locking part 3. When the switch 11 is pressed, the power source is applied to the first locking portion 3 through the lead 17, and the first locking portion 3 generates magnetism to attract the second locking portion 4.
Considering that the first locking part 3 is an electromagnet which is easy to generate heat after being electrified, the rotary shaft sleeve 1 and the scanning device sleeve 13 are made of metal materials with fast heat conduction such as aluminum alloy materials, so that heat generated after the electromagnet is electrified is sequentially conducted to the rotary shaft sleeve 1 and the scanning device sleeve 13, the heat dissipation area is increased through the rotary shaft sleeve 1 and the scanning device sleeve 13, and the heat dissipation effect of the carotid artery scanning ultrasonic device 100 is achieved through external air cooling.
Since the electromagnet and the locking iron in the rotary locking device 20 need to be electrified and locked only when the doctor finds the carotid artery position to start scanning at each time, the electrifying time of the electromagnet is greatly reduced, that is, the heating time of the electromagnet is reduced, so that the radiating effect of the carotid artery scanning ultrasonic device 100 of the whole device is better.
In summary, the present invention provides a rotation locking device and an ultrasound apparatus having the same, wherein the rotation locking device is located between a head cover of the ultrasound apparatus and a scanning probe assembly, wherein the rotation locking device enables the scanning probe assembly to be locked at an outer side of a sidewall of the head cover in a power-on state, and has an advantage of large rotation torque, thereby realizing stepless locking; the rotation locking device enables the scanning probe assembly to rotate relative to the side wall of the head sleeve in a power-off state, has the advantage of small rotating force, and realizes stepless rotation.
The present invention is capable of other embodiments, and various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the invention.