CN215937434U - Heart Doppler ultrasonic examination bed - Google Patents

Abstract

The utility model relates to the field of medical auxiliary instruments, in particular to a heart Doppler ultrasonic examination bed, which comprises a base, a rotating mechanism arranged on the base, a bed plate arranged at the top of the rotating mechanism and a fixing component arranged on the bed plate, wherein the rotating mechanism is arranged on the base; the bed plate comprises a first supporting plate which is connected with the top of the rotating mechanism and is arranged horizontally, and a second supporting plate which is arranged vertically to the first supporting plate; the rotating mechanism comprises a bed body overturning part; the bed body upset portion including locate on the base perpendicularly and with the supporting part of the tail connection of first backup pad to and be connected with first backup pad front end and locate the pars contractilis on the base. The utility model has the advantages of simple structure, simple operation and the like, not only improves the comfort level of the patient, but also does not need to adjust the lateral position of the patient, greatly reduces the labor intensity of medical personnel, and simultaneously avoids secondary injury to the patient caused by collision and movement in the processes of carrying and correcting the position.

Description

Heart Doppler ultrasonic examination bed

Technical Field

The utility model relates to the field of medical auxiliary instruments, in particular to a heart Doppler ultrasonic examination bed.

Background

The existing heart ultrasonic examination mostly needs a patient to lie on an examination bed by oneself, and a patient with inconvenient body, especially a patient with injured chest and abdomen, cannot lie down by oneself because of the inability of upper body to exert force, and then needs to lie on the back of the patient on the back on the examination bed by lying on the back under the cooperative cooperation of several doctors, and then the correction of the examination body position is carried out, namely, after the patient is adjusted to be in the left lateral decubitus position by the supine position, the examination of the heart ultrasonic wave can be carried out. Sprain of the waist, the hands and the arms of many doctors often occurs in the transferring process, which not only is inconvenient to operate, but also is easy to cause secondary injury to the patient with the chest and abdomen fracture in the transferring process of the patient to the examining table, thus aggravating the illness state of the patient.

Disclosure of Invention

Features and advantages of the utility model will be set forth in part in the description which follows, or may be obvious from the description, or may be learned by practice of the utility model.

To overcome the problems of the prior art, the utility model aims to provide an examination bed which is convenient for patients with thoracoabdominal injuries or fractures to carry out heart Doppler ultrasonic examination, reduces the working intensity of medical personnel and reduces secondary injuries to the patients.

In order to achieve the purpose, the technical scheme provided by the utility model is as follows:

a heart Doppler ultrasonic examination bed comprises a base, a rotating mechanism arranged on the base, a bed plate arranged at the top of the rotating mechanism, and a fixing assembly arranged on the bed plate; the bed plate comprises a first supporting plate which is connected with the top of the rotating mechanism and is arranged horizontally, and a second supporting plate which is arranged vertically to the first supporting plate; the rotating mechanism comprises a bed body overturning part; the bed body upset portion including locate on the base perpendicularly and with the supporting part of the tail connection of first backup pad to and be connected with first backup pad front end and locate the pars contractilis on the base.

The heart Doppler ultrasonic examination bed of above-mentioned structure, realized through rotary mechanism that the bed board is rotatory to with the ground vertical state from the horizontality, make the injured patient of chest abdomen can step into the tailstock by oneself, and stand on one's side by the bed board, the fixed subassembly of rethread is with the fixed back of patient, readjustment rotary mechanism makes the bed board resume to the horizontality from with the ground vertical state, need not to adjust the lateral position of patient again, patient chest abdomen's removal has been reduced, and then avoided medical personnel to patient's transport, greatly reduced medical personnel's intensity of labour, the secondary injury that causes the patient with the removal of colliding with of having avoided the transport simultaneously and correcting the position in-process. Through the L type bed board that first backup pad and second backup pad formed, be convenient for more to the stable of patient position fixed, simultaneously at rotatory in-process, patient's health obtains more stable support, has avoided the secondary damage to the patient.

Preferably, in order to make the bed board rotatable to the state perpendicular to the ground and provide the fulcrum for the rotation of bed board, the supporting part include with the bracing piece that the base is connected, locate the bracing piece top and be fixed in first base on the bottom plane of first backup pad and second backup pad juncture to and the rotating member of joint support pole and first base.

Preferably, in order to avoid producing interference in the rotatory in-process of bed board, rotatory more smoothly, the rotating member includes that two symmetries are located the support ear at bracing piece top is located two first through-holes that support the top of ear respectively, passes the back shaft of two first through-holes, and locates just rotate the rotation ear of being connected with the back shaft on the first base.

Preferably, in order to provide power for the rotation of the bed board and avoid discomfort of the patient in the rotation process of the bed board, the telescopic part is a telescopic cylinder which is arranged at a preset angle with the base.

Preferably, in order to provide power for the rotation of the bed board and avoid discomfort of a patient in the rotation process of the bed board, the telescopic part comprises a first sleeve arranged at a preset angle with the base and provided with a second through hole at the top, at least one second sleeve which can be retracted into the cavity of the first sleeve and is provided with an elastic bulge at the bottom connected with the second through hole, a first spring penetrating through the cavities of the first sleeve and the second sleeve, and a second base which is connected with the top of the second sleeve arranged at the farthest end at the bottom and is connected with the first supporting plate at the top; the diameters of the second sleeves are sequentially reduced along the direction of the extension line of the first sleeve to the bed plate; the top of the second sleeve is provided with a third through hole; and the length of the adjacent second sleeve is extended by the elastic bulge passing through the third through hole.

Preferably, in order to make the telescopic part more stably support the bed plate and provide a stable rotating base for the bed plate, the preset angle is 30-60 degrees.

Preferably, can rotate in step for making patient and bed board, avoid the patient from the bed board landing simultaneously, fixed subassembly includes at least two and locates bandage on the bed board, in addition, for making patient's position satisfy the best left side position of sleeping in, the low head contains chest form position, reduces the removal to the patient under the appearance state of sleeping in, and the medical personnel's of being convenient for heart doppler ultrasonic examination simultaneously reduces medical personnel's intensity of labour, fixed subassembly is still including locating the middle part of second backup pad and the back fixed mould that contains chest body phase adaptation with human left side crouches to and the activity is located just be used for assisting the antethorax fixed mould that contains chest position of fixed human left side crouching in first backup pad.

Preferably, in order to adapt to patients with different fat and thin body types, the body positions of the patients are effectively fixed, and the comfort level of the patients is improved, the front chest fixing mold comprises a front chest clamping piece which is matched with the left side lying position containing the chest body of the human body and is provided with an inspection opening, a fixing plate which is arranged at the bottom of the front chest clamping piece and is L-shaped, a first sliding groove which is arranged at the center of the bottom of the fixing plate, and a fixing piece which penetrates through the first sliding groove and is fixed with the first supporting plate; and a second sliding groove matched with the first sliding groove is formed in the first supporting plate.

Preferably, in order to facilitate the medical personnel in the process of carrying out the inspection, through the purpose to the transform of patient's position in order to reach better inspection effect, avoid simultaneously in the inspection process, to the removal of patient's health, alleviate medical personnel's working strength. The rotating mechanism also comprises a body position overturning part; the body position overturning part comprises an overturning base which is fixed with the top of the bed body overturning part and provided with a cavity in the middle, a rotating seat arranged on the inner wall of one side of the overturning base, a rotating shaft, a rotating part, at least one limiting port and a connecting rod, wherein the end part of one side of the rotating shaft is movably connected with the rotating seat and is arranged along the length direction of the bed plate, the rotating part is connected with the end part of the other side of the rotating shaft, the limiting port is arranged on the top plane of the overturning base, and the connecting rod is correspondingly arranged on the rotating shaft according to the position of the limiting port and penetrates through the limiting port to be fixed with the bottom of the bed plate; the top plane of the turnover base is arc-shaped

Preferably, in order to make the patient stand more stably, maintain the stability of the patient in the rotating process and simultaneously facilitate the fixing of the medical staff to the patient, the patient support device further comprises a pedal part which is arranged at the tail part of the first support plate and facilitates the patient to stand, and a handrail arranged on the second support plate and/or the first support plate.

Drawings

The advantages and realisation of the utility model will be more apparent from the following detailed description, given by way of example, with reference to the accompanying drawings, which are given for the purpose of illustration only, and which are not to be construed in any way as limiting the utility model, and in which:

FIG. 1 is a schematic diagram of a cardiac Doppler ultrasound examination couch in accordance with an embodiment of the present invention;

FIG. 2 is a schematic diagram of a body position turning part of a heart Doppler ultrasound examination bed according to an embodiment of the present invention;

in the drawings, the corresponding relationship between the component names and the reference numbers is as follows:

the bed comprises a base-100, a bed body turning part-200, a supporting part-210, a supporting rod-211, a first base-212, a rotating part-213, a supporting lug-2131, a supporting shaft-2132, a rotating lug-2133, a telescopic part-220, a second base-221, a bed board-300, a buffer part-310, a pillow-320, a first supporting plate-330, a second supporting plate-340, a fixing component-400, a binding belt-410, a chest fixing mould-420, an inspection opening-421, a pedal part-500, a height adjusting cylinder-510, a tail plate-520, an armrest-600, a body position turning part-700, a turning base-710, a rotating shaft-720, a rotating part-730, a limiting opening-740 and a connecting rod-750.

Detailed Description

The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the utility model but are not intended to limit the scope of the utility model.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "inner", "outer", "top", "bottom", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Detailed description of the preferred embodiment 1

As shown in fig. 1, the present invention provides a heart doppler ultrasound examining table, which includes a base 100, a rotating mechanism disposed on the base 100, a bed plate 300 disposed on the top of the rotating mechanism, and a fixing component 400 disposed on the bed plate 300; the bed plate 300 comprises a first supporting plate 330 which is connected with the top of the rotating mechanism and is horizontally arranged, and a second supporting plate 340 which is vertically arranged with the first supporting plate 330; the rotating mechanism comprises a bed body overturning part 200; the bed turning part 200 includes a support part 210 vertically disposed on the base 100 and connected to the tail of the first support plate 330, and a telescopic part 220 connected to the front end of the first support plate 330 and disposed on the base 100.

Further, the supporting portion 210 includes a supporting rod 211 connected to the base 100, a first base 212 disposed on a top of the supporting rod 211 and fixed on a bottom plane of a junction of the first supporting plate 330 and the second supporting plate 340, and a rotating member 213 connecting the supporting rod 211 and the first base 212.

Further, the rotating member 213 includes two supporting lugs 2131 symmetrically disposed on the top of the supporting rod 211, first through holes respectively disposed on the top of the two supporting lugs 2131, a supporting shaft 2132 passing through the two first through holes, and a rotating lug 2133 disposed on the first base 212 and rotatably connected to the supporting shaft 2132.

Further, the telescopic portion 220 includes a first sleeve (not shown) disposed at a predetermined angle to the base 100 and having a top portion symmetrically provided with a second through hole (not shown), at least one second sleeve (not shown) retractable into a cavity of the first sleeve (not shown) and having a bottom portion provided with an elastic protrusion (not shown) connected to the second through hole (not shown), a first spring (not shown) penetrating through the cavity of the first sleeve (not shown) and the second sleeve (not shown), and a second base 221 having a bottom portion connected to a top portion of the second sleeve (not shown) disposed at the farthest end and a top portion connected to the first supporting plate 330; the diameter of the second sleeve (not shown) decreases along the extension line direction of the first sleeve (not shown) to the bed plate 300; the top of the second sleeve (not shown in the figure) is provided with a third through hole (not shown in the figure); the adjacent second sleeve (not shown) is extended in length by passing the elastic protrusion (not shown) through the third through hole (not shown). The elastic protrusion (not shown in the figure) includes a groove (not shown in the figure) which is arranged on the outer wall of the bottom of the second sleeve (not shown in the figure) and is matched with the position of the second through hole (not shown in the figure) or the third through hole (not shown in the figure), a second spring (not shown in the figure) which is fixed with the bottom of the groove (not shown in the figure), and a pressing head (not shown in the figure) which is fixed on the top of the second spring (not shown in the figure) and is movably connected with the groove (not shown in the figure). The maximum height of the pressing head (not shown) and the second spring (not shown) is greater than the depth of the groove (not shown), and the fixing and detaching between the first sleeve (not shown) and the second sleeve (not shown) and between the adjacent second sleeves (not shown) are realized through the expansion and contraction of the pressing head (not shown) in the groove (not shown), so that the length of the expansion part 220 is prolonged and shortened. By increasing the number of the second sleeves (not shown in the figure) and the first springs (not shown in the figure), the descending amplitude of the bed plate 300 in the ascending and descending processes is reduced, and meanwhile, the first springs (not shown in the figure) effectively buffer the bed plate 300 in the descending and ascending processes, so that the comfort of a patient is improved. Through the cushioning effect of first spring (not shown in the figure), reduced the bed board 300 and rotated the speed that is the horizontality in-process from vertical state and fallen, improved patient's comfort level.

Further, the heights of the supporting portion 210 and the telescopic portion 220 are the same, so as to ensure that the bed plate 300 can be in a horizontal state.

Further, the preset angle is 30-60 degrees.

Further, a buffer member 310 for increasing comfort of a patient is disposed on a top plane of the bed board 300, and the buffer member 310 may be a sponge pad or a latex pad, which is not specifically limited herein.

To sum up, because the supporting portion 210 provides a rotation fulcrum for the bed board 300 and extends through the extension portion 220, the bed board 300 rotates around the vertex of the supporting portion 210, so that the bed board 300 rotates from a horizontal state to a state perpendicular to the ground, so that the patient can step into the tailstock by himself and stand on the side of the bed board 300, and after the patient is fixed by the fixing assembly 400, the rotation mechanism is adjusted to restore the bed board 300 from the state perpendicular to the ground to the horizontal state, the position of the lateral lying position of the patient does not need to be adjusted, and after the examination is completed, the patient can stand on the side of the bed board 300 directly by rotating the bed board 300 from the horizontal state to the vertical state, the fixing assembly 400 is unlocked, the movement of the chest and abdomen of the patient is greatly reduced, the patient is prevented from being carried and moved by medical staff, the labor intensity of the medical staff is greatly reduced, and the secondary injury to the patient caused by the collision and the movement in the processes of carrying and correcting the body position is avoided, the examination speed of the heart Doppler ultrasonic examination is improved. Through the L type bed board 300 that first backup pad 330 and second backup pad 340 formed, be convenient for more fixed to the stability of patient position, simultaneously at rotatory in-process, patient's health obtains more stable support, has avoided the secondary damage to the patient.

Specific example 2

As shown in fig. 1, the present embodiment also provides a cardiac doppler ultrasound examination bed, which has a structure substantially the same as that of embodiment 1, except that:

further, the telescopic portion 220 is a telescopic cylinder disposed at a predetermined angle with respect to the base 100. The preferred model of the telescopic cylinder is JB 200S.

In conclusion, because the telescopic cylinder provides power for the rotation of the bed plate 300, the labor intensity of medical staff is greatly reduced, the rotation of the bed plate 300 can be automatically completed, the bed plate 300 can rotate more smoothly, discomfort of a patient in the rotation process of the bed plate 300 is avoided, the comfort level of the patient is increased, and possible secondary injury to the patient caused by the unsmooth rotation of the bed plate 300 is avoided.

Specific example 3

As shown in fig. 1, the present embodiment also provides a cardiac doppler ultrasound examination bed, which has a structure substantially the same as that of embodiment 1, except that:

further, the fixing assembly 400 includes at least two straps 410 disposed on the bedplate 300. At least one bandage 410 is used for fixing the legs of the patient, and at least one bandage 410 is used for fixing the waist of the patient, so that the patient can form a whole with the bed board 300, and the patient is prevented from being separated from the bed board 300 in the rotation process of the bed board 300, and then the patient falls off the bed, and the patient is injured.

Further, the fixing assembly 400 further includes a back fixing mold (not shown in the figure) disposed in the middle of the second supporting plate 340 and adapted to the chest containing position of the left side of the human body, and a front chest fixing mold 420 movably disposed on the first supporting plate 330 and used for assisting in fixing the chest containing position of the left side of the human body.

Further, the chest fixing mold 420 includes a chest clip (not shown) adapted to the position of the chest containing body lying on the left side of the human body and provided with an inspection opening 421, a fixing plate (not shown) disposed at the bottom of the chest clip (not shown) and in an L shape, a first sliding groove (not shown) disposed at the center of the bottom of the fixing plate (not shown), and a fixing member (not shown) passing through the first sliding groove (not shown) and fixed to the first support plate 330; the first support plate 330 is provided with a second sliding slot (not shown) adapted to the first sliding slot (not shown). The fixing member (not shown) is a bolt (not shown) passing through the first sliding groove (not shown) and the second sliding groove (not shown) and fixing the front chest fixing mold 420 and the bed plate 300, and a nut (not shown) fitting the bolt (not shown).

Further, the front chest fixing mold 420, the back fixing mold (not shown), the first supporting plate 330 and the second supporting plate 340 are all provided with buffering members 310 to increase the comfort of the patient. The buffer member 310 may be a sponge pad or a latex pad, and is not limited herein.

Further, as shown in fig. 2. The rotating mechanism further comprises a body position overturning part 700; the body position turning part 700 comprises a turning base 710 fixed to the top of the bed body turning part 200 and provided with a cavity in the middle, a rotating seat (not shown) arranged on the inner wall of one side of the turning base 710, a rotating shaft 720 movably connected with the rotating seat (not shown) at one end and arranged along the length direction of the bed plate 300, a rotating member 730 connected with the end of the other side of the rotating shaft 720, at least one limiting port 740 arranged on the top plane of the turning base 710, and a connecting rod 750 correspondingly arranged on the rotating shaft 720 according to the position of the limiting port 740 and fixed to the bottom of the bed plate 300 through the limiting port 740; the top plane of the turnover base 710 is arc-shaped, so as to facilitate the turnover of the bed plate 300. The link 750 is preferably fixed to a junction of the first support plate 330 and the second support plate 340 to facilitate the turning. The bottom of the rotating seat (not shown in the figure) is fixed with the inner wall of the turning base 710, the top of the rotating seat (not shown in the figure) is provided with a circular opening, the end part of one side of the rotating shaft 720 connected with the rotating seat (not shown in the figure) is provided with a groove (not shown in the figure) arranged along the outer wall of the rotating shaft 720, the end part of one side of the rotating shaft 720 extends into the circular opening, the edge of the circular opening of the rotating seat (not shown in the figure) extends into the groove (not shown in the figure) and is in clearance connection with the bottom of the groove (not shown in the figure) so as to realize the movable connection of the rotating shaft 720 and the turning base 710, and meanwhile, the rotating shaft 720 is prevented from sliding out from the rotating seat (not shown in the figure) in the rotating process, and a stable foundation is provided for the rotation of the rotating shaft 720. The rotating member 730 may be a crank or a rotating motor, that is, the rotating member 730 rotates the rotating shaft 720, and is not limited in detail.

Further, the patient support device further comprises a pedal member 500 disposed at the tail of the first support plate 330 for the patient to stand, and an armrest 600 disposed on the second support plate 340 and/or the first support plate 330. The pedal member 500 is a tail plate 520 perpendicular to the tail of the first support plate 330, and a standing position indicator for the patient to identify is disposed on the tail plate 520 to assist the patient to stand on the side of the bed plate 300. The self stability of the patient when the medical staff is fixed is increased through the armrests 600, the tension of the patient in the rotating process of the bed board 300 is relieved, the gravity center of the patient is attached to the gravity center of the bed board 300, and the rotation of the bed board 300 is smoother.

Further, the pedal member 500 includes a height adjusting cylinder 510 with one side end fixed with the end of the bed board 300 and arranged along the extension line direction of the first support plate 330, and a tail plate 520 fixed with the other side end of the height adjusting cylinder 510 and arranged along the direction perpendicular to the first support plate 330, so as to adapt to the use of patients with different heights. The height adjustment cylinder 510 is preferably of the type MA25 × 100.

Further, a counterweight (not shown) is disposed on the base 100 to provide a stable foundation for the whole examining table, so as to prevent the examining table from turning over.

Further, the bed board 300 is further provided with a pillow 320 for the patient to lie on the side, so as to enhance the comfort of the patient during the side lying process.

In summary, after the patient and the bed plate 300 are fixed by the fixing assembly 400, the bed plate 300 can rotate with the patient, and the patient can lie on the examination bed without exerting force. Because fixed subassembly 400 still is equipped with fixed mould of back (not shown in the figure) and the fixed mould 420 of antethorax, make patient's position be in the state that the low head contains the chest, be convenient for more carry on the Doppler ultrasonic examination of heart, practiced thrift check-out time greatly, promoted inspection effect and inspection efficiency, and medical personnel need not to rectify patient's position, greatly reduced medical personnel's working strength. Due to the height adjustability of the footrest member 500, it can accommodate the examination of patients of different heights and enhance the comfort of the patients.

In practical use, a patient stands on the pedal member 500 by one side, holds the handrail 600, adjusts the height of the pedal member 500, fits the back of the patient with a back fixing mold (not shown in the figure), adjusts the chest fixing mold 420 to fit the chest of the patient with the chest fixing mold 420, fixes the legs and the waist of the patient with the bandage 410, starts the rotating mechanism, rotates the bed plate 300 from a state vertical to the ground to a horizontal state, so that the doctor can perform Doppler ultrasonic examination of the heart, during examination, the doctor can perform ultrasonic examination by extending the ultrasonic probe into the examination opening 421, and adjusts the body position of the patient through the bed body overturning part 200, so as to perform more comprehensive Doppler ultrasonic examination of the heart on the patient, so that the examination result is more accurate, and simultaneously, the secondary injury to the body of the patient caused by the overturning of the body position of the patient in the examination process is avoided, after the examination is finished, the bed board 300 is rotated from the horizontal state to the state vertical to the ground, and then the fixing component 400 is detached, so that the patient can leave by himself. In addition, this application not only is applicable in chest belly injured patient's heart doppler ultrasonic examination, still is applicable to other patient's that can normally stand's inspection simultaneously, makes the doctor carry out the adjustment of position according to the inspection needs, has reduced the time of doctor and patient's communication position adjustment, and the doctor's of being convenient for operation more has improved inspection efficiency. The utility model has the advantages of simple structure, simple operation and the like, not only improves the comfort level of the patient, but also does not need to adjust the lateral position of the patient, reduces the movement of the chest and the abdomen of the patient, further avoids the carrying of medical personnel to the patient, greatly reduces the labor intensity of the medical personnel, and simultaneously avoids the secondary damage to the patient caused by the collision and the movement in the processes of carrying and correcting the position.

While the preferred embodiments of the present invention have been illustrated in the accompanying drawings, those skilled in the art will appreciate that various modifications can be made to the present invention without departing from the scope and spirit of the utility model. For instance, features illustrated or described as part of one embodiment, can be used with another embodiment to yield a still further embodiment. The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the present invention, which is defined in the appended claims.

Claims (10)

1. A heart Doppler ultrasonic examination bed is characterized by comprising a base, a rotating mechanism arranged on the base, a bed plate arranged at the top of the rotating mechanism, and a fixing component arranged on the bed plate; the bed plate comprises a first supporting plate which is connected with the top of the rotating mechanism and is arranged horizontally, and a second supporting plate which is arranged vertically to the first supporting plate; the rotating mechanism comprises a bed body overturning part; the bed body upset portion including locate on the base perpendicularly and with the supporting part of the tail connection of first backup pad to and be connected with first backup pad front end and locate the pars contractilis on the base.

2. A heart Doppler ultrasound examination bed according to claim 1, wherein the support portion comprises a support rod connected to the base, a first base fixed to a bottom plane of the junction between the first support plate and the second support plate and provided at a top of the support rod, and a rotating member connecting the support rod and the first base.

3. The heart doppler ultrasound examination bed of claim 2, wherein the rotating member comprises two support ears symmetrically disposed on the top of the support rod, first through holes respectively disposed on the top of the two support ears, a support shaft passing through the two first through holes, and a rotation ear disposed on the first base and rotatably connected to the support shaft.

4. A heart doppler ultrasound examination bed as claimed in claim 1, wherein said telescopic portion is a telescopic cylinder disposed at a predetermined angle to said base.

5. The heart Doppler ultrasound examination bed according to claim 1, wherein the telescopic portion comprises a first sleeve disposed at a predetermined angle with respect to the base and having a top portion symmetrically provided with a second through hole, at least one second sleeve retractable into a cavity of the first sleeve and having a bottom portion provided with an elastic protrusion connected with the second through hole, a first spring penetrating the first sleeve and the second sleeve, and a second base having a bottom portion connected with a top portion of the second sleeve disposed at the farthest end and a top portion connected with the first support plate; the diameters of the second sleeves are sequentially reduced along the direction of the extension line of the first sleeve to the bed plate; the top of the second sleeve is provided with a third through hole; and the length of the adjacent second sleeve is extended by the elastic bulge passing through the third through hole.

6. A cardiac Doppler ultrasound examination bed according to claim 5, characterized in that said predetermined angle is 30-60 degrees.

7. The Doppler ultrasound cardiac examination bed as claimed in claim 1, wherein the fixing member comprises at least two straps disposed on the bed board, a back fixing mold disposed in the middle of the second support plate and adapted to the left-side chest-containing body position of the human body, and a front chest fixing mold movably disposed on the first support plate and used for assisting in fixing the left-side chest-containing body position of the human body.

8. The heart doppler ultrasound examination bed of claim 7, wherein the chest fixing mold comprises a chest clip adapted to a chest containing body of a left side of a human body and having an examination opening, a fixing plate disposed at the bottom of the chest clip and having an L-shape, a first sliding slot disposed at the center of the bottom of the fixing plate, and a fixing member passing through the first sliding slot and fixed to the first supporting plate; and a second sliding groove matched with the first sliding groove is formed in the first supporting plate.

9. A cardiac doppler ultrasound examination bed according to any of claims 1 to 8, wherein the rotation mechanism further comprises a body position flip; the body position overturning part comprises an overturning base which is fixed with the top of the bed body overturning part and provided with a cavity in the middle, a rotating seat arranged on the inner wall of one side of the overturning base, a rotating shaft, a rotating part, at least one limiting port and a connecting rod, wherein the end part of one side of the rotating shaft is movably connected with the rotating seat and is arranged along the length direction of the bed plate, the rotating part is connected with the end part of the other side of the rotating shaft, the limiting port is arranged on the top plane of the overturning base, and the connecting rod is correspondingly arranged on the rotating shaft according to the position of the limiting port and penetrates through the limiting port to be fixed with the bottom of the bed plate; the top plane of the turnover base is arc-shaped.

10. A heart doppler ultrasound examination bed according to claim 9, further comprising a pedal member provided at the rear portion of the first support plate for allowing a patient to stand thereon, and a handrail provided on the second support plate and/or the first support plate.

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