CN110584711B

CN110584711B - Adjustable shell for cardiac ultrasonic probe

Info

Publication number: CN110584711B
Application number: CN201910863684.0A
Authority: CN
Inventors: 夏芳芳; 金周晟; 陈鸿飞
Original assignee: First Affiliated Hospital of Wenzhou Medical University
Current assignee: First Affiliated Hospital of Wenzhou Medical University
Priority date: 2019-09-12
Filing date: 2019-09-12
Publication date: 2022-03-22
Anticipated expiration: 2039-09-12
Also published as: CN110584711A

Abstract

The invention discloses an adjustable shell for a cardiac ultrasonic probe, which comprises a shell body sleeved outside the ultrasonic probe, wherein a containing cavity for containing a coupling agent is arranged inside the shell body, the ultrasonic probe is arranged in the containing cavity, and at least three fixing components for fixing the ultrasonic probe are arranged on the inner wall of the shell body; the upper part of the inner wall of the outer shell is in threaded connection with an upper cover, a liquid inlet hole is formed in the upper cover, a plug is inserted in the liquid inlet hole, a cable of the ultrasonic probe penetrates through the upper cover and is in linkage arrangement with the upper cover, the lower part of the inner wall of the outer shell is in threaded connection with a fixing ring, and an isolation film layer is connected to the fixing ring in a sleeved mode; the lower extreme of shell body is equipped with the circular bead, and the inboard of circular bead is rotated and is connected with the telescope tube, the bottom of telescope tube is equipped with the contact film, when couplant packs into and holds the intracavity and force the isolation film layer to take place downward deformation, and isolation film layer bottom surface part is attached on the contact film. The invention can enhance the detection effect of the heart ultrasonic probe.

Description

Adjustable shell for cardiac ultrasonic probe

Technical Field

The invention relates to the field of medical instrument products, in particular to an adjustable shell for a cardiac ultrasonic probe.

Background

The heart color Doppler ultrasound is the only instrument capable of dynamically displaying the structure in the heart cavity, the beating of the heart and the blood flow, and has no damage to the human body. The heart color ultrasound is also the only instrument capable of visually displaying the valve lesion, and doctors can know the degree of the valve lesion through the measurement of the color ultrasound so as to decide conservative treatment or surgical treatment. Cardiomyopathy is a disease with gradually rising incidence in recent years, and the thickening of cardiac muscle and the enlargement of cardiac chambers are judged by color ultrasonography; for coronary heart disease and color Doppler ultrasound, the movement status and the cardiac function of the cardiac muscle can be visually displayed, and the part of myocardial ischemia can be prompted to a clinician. The heart ultrasonic probe plays an important role, the heart ultrasonic probe is like a lens of a camera, and various structures of the heart can be displayed on a screen along with the rotation of the ultrasonic probe. The existing ultrasonic probe use method is as follows: firstly, a couplant is smeared on the surface of the skin corresponding to the heart position of a human body, and then an ultrasonic probe is attached to the part of the skin coated with the couplant and moves, so that all structures of the heart are displayed on a screen. However, due to the fact that the breast muscle of a human body is uneven, the ultrasonic probe cannot be completely attached to the surface of the skin, the situation that the image on a screen is not clear can be caused, and the couplant is smeared on the surface of the skin, so that the ultrasonic probe is uncomfortable and troublesome to clean.

Disclosure of Invention

It is an object of the present invention to provide an adjustable housing for a cardiac ultrasound probe. The invention can enhance the detection effect of the heart ultrasonic probe, and can clean and display all structures of the heart on the screen, and the invention does not need to paint the coupling liquid on the surface of the skin, is convenient to use and does not cause discomfort to patients.

The technical scheme of the invention is as follows: an adjustable shell for a cardiac ultrasonic probe comprises a shell body sleeved outside the ultrasonic probe, wherein a containing cavity for containing a coupling agent is arranged inside the shell body, the ultrasonic probe is arranged in the containing cavity, and at least three fixing components for fixing the ultrasonic probe are arranged on the inner wall of the shell body; the upper part of the inner wall of the outer shell is in threaded connection with an upper cover, a liquid inlet hole is formed in the upper cover, a plug is inserted in the liquid inlet hole, a cable of the ultrasonic probe penetrates through the upper cover and is in linkage arrangement with the upper cover, the lower part of the inner wall of the outer shell is in threaded connection with a fixing ring, and an isolation film layer is connected to the fixing ring in a sleeved mode; the lower extreme of shell body is equipped with the circular bead, and the inboard of circular bead is rotated and is connected with the telescope tube, the bottom of telescope tube is equipped with the contact film, when couplant packs into and holds the intracavity and force the isolation film layer to take place downward deformation, and isolation film layer bottom surface part is attached on the contact film.

In the adjustable shell for the cardiac ultrasonic probe, the fixing assembly comprises an arc-shaped bottom plate arranged on the inner wall of the shell, a sliding block is connected onto the arc-shaped bottom plate in a sliding manner, a telescopic rod is arranged on the sliding block, a mounting seat is arranged at the tail end of the telescopic rod, an extrusion block is fixed on one side of the mounting seat opposite to the ultrasonic probe, and a plurality of resistance increasing bulges are arranged on the surface of the extrusion block; the stiff end of telescopic link is equipped with the spacing ring, is equipped with the spring between spacing ring and the mount pad.

In the adjustable housing for the cardiac ultrasound probe, the bottom of the sliding block is in a dovetail shape, and a dovetail sliding groove matched with the sliding block is formed in the arc-shaped bottom plate.

In the adjustable housing for the cardiac ultrasound probe, the dovetail sliding grooves are respectively provided with a fixed block at the upper side and the lower side of the sliding block, and the fixed blocks are in interference fit with the dovetail sliding grooves; the surface of fixed block is equipped with the gib group, still runs through on the fixed block to be provided with the locking screw that is used for fixed block.

In the adjustable housing for the cardiac ultrasound probe, the mounting base is provided with a T-shaped protrusion, and the extrusion block is provided with a T-shaped groove matched with the T-shaped protrusion.

In the aforementioned adjustable housing for a cardiac ultrasound probe, the upper cover includes a first semicircular plate and a second semicircular plate, and the first semicircular plate and the second semicircular plate are butted to form a circular upper cover; a plurality of strip-shaped bulges are arranged on the butt joint plate of the first semicircular plate, and a plurality of strip-shaped grooves matched with the strip-shaped bulges are arranged on the second semicircular plate; still be equipped with first semicircle hole on the butt joint face of first semicircle board, be equipped with the second semicircle hole on the butt joint face of second semicircle board, first semicircle hole and second semicircle hole constitute and supply the cable hole that the cable passed, and press from both sides between cable hole and the cable and be equipped with the rubber ring.

In the aforesaid an adjustable shell for heart ultrasonic probe, the upper and lower surface of upper cover all is equipped with a pair of coupling assembling that is used for consolidating first semicircle board and second semicircle board, coupling assembling is articulated on the first U-shaped post including setting up first U-shaped post on first semicircle board and the second U-shaped post of setting on the second semicircle board to have the connecting rod, and the terminal both sides of connecting rod are equipped with the convex part, be equipped with on the second U-shaped post with the concave part that the convex part is corresponding.

In the adjustable housing for the cardiac ultrasound probe, the inner side of the shoulder is provided with a track groove which is gradually reduced from top to bottom, the upper end surface of the telescopic sleeve is provided with a plurality of bent rods, the bent rods are made of plastic materials, the tail ends of the bent rods are rotatably connected with balls, and the balls roll on the track groove; the bottom end of the shoulder is also provided with a plurality of chamfered parts for rolling the balls into the track grooves.

In the aforementioned adjustable housing for a cardiac ultrasound probe, the upper end surface of the upper cover is provided with a pair of handles.

In the foregoing adjustable housing for a cardiac ultrasound probe, a transparent observation window is axially arranged on the surface of the housing, and scale marks are arranged on one side of the housing, which is located on the transparent observation window.

Compared with the prior art, the outer shell is sleeved outside the ultrasonic probe, the ultrasonic probe is reinforced through the fixing component on the inner wall of the outer shell, and the coupling liquid is filled in the cavity inside the outer shell and submerges the ultrasonic probe. The lower part of the inner wall of the outer shell is in threaded connection with a fixing ring with an isolation film layer, so that the coupling liquid is prevented from flowing out. The inboard of shell body lower extreme circular bead is rotated and is connected the flexible cover that has the contact film, when the couplant is packed into and is held the intracavity and forces the isolation film layer to take place downward deformation, and isolation film layer bottom surface part is attached on the contact film, and the contact film is attached again on skin for ultrasonic probe can survey the heart inside condition, consequently, need not paint coupling liquid on the skin surface, and not only convenient to use just can not cause the discomfort for the patient. Because the telescopic sleeve has good flexibility and flexibility, the outer shell can rotate freely and observe the conditions inside the heart at different positions, and the contact film is stuck to the surface of the skin all the time, so that the definition of heart imaging cannot be influenced. The upper cover of shell body threaded connection rather than the upper portion of inner wall, ultrasonic probe's cable run through the upper cover and set up with the upper cover linkage, just can adjust ultrasonic probe apart from the height of skin along with the rotation of upper cover, conveniently seeks the best height and improves the heart imaging definition.

The fixing component presses the extrusion block on the surface of the ultrasonic probe through spring force, and the number of the fixing components is at least three, namely three fixing points, so that a good fixing effect can be achieved. And because the extrusion piece is acted by the spring force, when ultrasonic probe rotated, the telescopic link that is used for connecting the extrusion piece can contract, and when ultrasonic probe stopped rotating, a plurality of fixed subassemblies reached a new power balance, when can playing fixed ultrasonic probe, can not hinder the regulation of ultrasonic probe position.

The slide block on the fixing component is arranged in the dovetail sliding groove of the arc-shaped bottom plate, and the installation and the position adjustment are very convenient.

The upper side and the lower side of the sliding block are respectively provided with the fixed block for reinforcing the sliding block, and after the installation position of the sliding block is determined, the fixed blocks can reinforce the sliding block, so that the position change of the ultrasonic probe caused by the sliding of the sliding block in use is prevented.

The mounting seat and the extrusion block are connected in a manner that the T-shaped protrusions are matched with the T-shaped grooves, so that the mounting seat is very convenient to disassemble and assemble.

According to the invention, the first semicircular plate and the second semicircular plate are butted to form the circular upper cover, and the first semicircular hole on the first semicircular plate and the second semicircular hole on the second semicircular plate form the cable hole for the cable to pass through, so that the ultrasonic probe can be conveniently arranged in the outer shell, the top end of the outer shell is sealed, and the problem that the ultrasonic probe cannot be inserted into the cable hole to enter the cavity of the outer shell due to the overlarge sectional area is solved.

The upper surface and the lower surface of the upper cover are respectively provided with the pair of connecting assemblies for reinforcing the first semicircular plate and the second semicircular plate, and the connecting assemblies play a role in reinforcing the first semicircular plate, the second semicircular plate and the second semicircular plate, so that the upper cover has stronger rigidity and better sealing property.

The end parts of the bent rods on the upper end surface of the telescopic sleeve are provided with the balls, and the balls roll in the track grooves on the inner sides of the shoulders, so that the positions of the telescopic sleeve and the contact film are fixed when the outer shell rotates, multi-angle detection can be conveniently carried out at the same position, and the use flexibility is high.

The pair of handles is arranged on the upper end face of the upper cover, so that the upper cover can be conveniently rotated, and the rotation of the upper cover is more labor-saving.

The invention can observe the position of the ultrasonic probe in the cavity and the height of the liquid level of the coupling agent through the transparent observation window on the surface of the shell.

Drawings

FIG. 1 is a schematic structural view of the present invention as a whole;

FIG. 2 is a schematic view of the internal structure of the present invention;

FIG. 3 is a schematic structural view of the upper cover of the present invention;

FIG. 4 is a schematic structural view of a first semicircular plate of the present invention;

FIG. 5 is a schematic view of a second semicircular plate according to the present invention;

FIG. 6 is a schematic structural view of the fixing assembly of the present invention;

FIG. 7 is an enlarged schematic view of portion A of FIG. 6;

fig. 8 is a schematic structural view of the telescopic sleeve of the present invention.

The labels in the figures are: 1. an outer housing; 2. an upper cover; 3. a shoulder; 4. a telescopic sleeve; 5. a cable hole; 6. a handle; 7. a liquid inlet hole; 8. a plug; 9. a connecting assembly; 10. a transparent viewing window; 11. scale lines; 12. a cavity; 13. an ultrasonic probe; 14. a fixing assembly; 15. an isolation thin film layer; 16. contacting the film; 17. a fixing ring; 18. bending a rod; 19. a ball bearing; 20. a track groove; 21. a first semi-circular plate; 22. a second semicircular plate; 23. a first U-shaped column; 24. a second U-shaped post; 25. a connecting rod; 26. a recess; 27. a convex portion; 28. a rubber ring; 29. a first semicircular hole; 30. a strip-shaped bulge; 31. a second semicircular hole; 32. a strip-shaped groove; 33. an arc-shaped bottom plate; 34. a dovetail chute; 35. a slider; 36. a telescopic rod; 37. a mounting seat; 38. extruding the block; 39. resistance-increasing bulges; 40. a limiting ring; 41. a spring; 42. a fixed block; 43. a convex strip group; 44. locking screws; 45. a T-shaped slot; 46. a T-shaped protrusion; 47. and chamfering the corner.

Detailed Description

The present invention is further illustrated by the following examples, which are not to be construed as limiting the invention.

Example (b): an adjustable shell for a heart ultrasonic probe is shown in figures 1-8 and comprises a shell body 1 sleeved outside an ultrasonic probe 13, wherein a containing cavity 12 used for containing a coupling agent is arranged inside the shell body 1, and the ultrasonic probe 13 is arranged in the containing cavity 12, so that coupling liquid does not need to be smeared on the surface of skin, and the adjustable shell is convenient to use and does not cause discomfort to a patient. The inner wall of the outer shell 1 is provided with at least three fixing components 14 for fixing the ultrasonic probe 13; the upper portion threaded connection of 1 inner wall of shell body has upper cover 2, the up end of upper cover 2 is equipped with a pair of handle 6, conveniently rotates upper cover 2, makes upper cover 2 rotate more laborsavingly, and the accessible rotates the position that upper cover 2 was adjusted to upper cover 2. The upper cover 2 is provided with a liquid inlet hole 7 for adding coupling liquid, after the coupling liquid is added, a plug 8 is inserted into the liquid inlet hole 7 to prevent the coupling liquid from flowing out, and a cable of the ultrasonic probe 13 penetrates through the upper cover 2 and is in linkage with the upper cover 2, so that the height of the ultrasonic probe 13 from the skin can be adjusted along with the rotation of the upper cover 2. The lower part of the inner wall of the outer shell 1 is connected with a fixing ring 17 in a threaded manner, an isolation film layer 15 is annularly connected on the fixing ring 17, and the isolation film layer 15 is made of PE and is adhered to the fixing ring 17 through glue; the lower extreme of shell body 1 is equipped with circular bead 3, and the inboard of circular bead 3 rotates and is connected with telescope tube 4, the bottom of telescope tube 4 is equipped with contact film 16, and contact film 16 is the PE material to glue through glue and glue on telescope tube 4. When the couplant is filled in the cavity 12 to force the isolating film layer 15 to deform downwards, the bottom surface part of the isolating film layer 15 is attached to the contact film 16, and when the couplant is used, the contact film 16 is attached to the surface layer of skin.

As shown in fig. 2 and fig. 6, the fixing assembly 14 includes an arc-shaped bottom plate 33 disposed on the inner wall of the outer shell 1, the arc-shaped bottom plate 33 is fixed on the inner wall of the outer shell 1 through screws, the arc-shaped bottom plate 33 is slidably connected with a sliding block 35, and the specific connection mode is as follows: the bottom of slider 35 is the forked tail shape, be equipped with the forked tail spout 34 that agrees with slider 35 mutually on the arc bottom plate 33, installation and position control are all very convenient. Be equipped with telescopic link 36 on the slider 35, telescopic link 36's end is equipped with mount pad 37, and one side that mount pad 37 is relative ultrasonic probe 13 is fixed with extrusion piece 38, and concrete fixed mode is: the mounting seat 37 is provided with a T-shaped bulge 46, the extrusion block 38 is provided with a T-shaped groove 45 matched with the T-shaped bulge 46, the mounting seat 37 and the extrusion block 38 are connected in a mode that the T-shaped bulge 46 is matched with the T-shaped groove 45, and the mounting and dismounting are very convenient. The surface of the extrusion block 38 is provided with a plurality of resistance-increasing protrusions 39, so that the grabbing force on the ultrasonic probe 13 can be enhanced, and the fixing effect is enhanced; the fixed end of the telescopic rod 36 is provided with a limiting ring 40, and a spring 41 is arranged between the limiting ring 40 and the mounting seat 37. Because the extrusion block 38 is acted by the force of the spring 41, when the ultrasonic probe 13 rotates, the telescopic rod 36 for connecting the extrusion block 38 can be contracted, and when the ultrasonic probe 13 stops rotating, the plurality of fixing assemblies 14 reach a new force balance, so that the ultrasonic probe 13 can be fixed without hindering the adjustment of the position of the ultrasonic probe 13. The dovetail sliding grooves 34 are respectively provided with a fixed block 42 at the upper side and the lower side of the sliding block 35, and the fixed blocks 42 are in interference fit with the dovetail sliding grooves 34; the surface of the fixed block 42 is provided with a convex strip group 43, and the fixed block 42 is also provided with a locking screw 44 for fixing the fixed block 42 in a penetrating way. After the slide block 35 determines the installation position, the fixing block 42 can reinforce the slide block 35 to prevent the slide block 35 from sliding to cause the change of the position of the ultrasonic probe 13 in use.

As shown in fig. 3-5, the upper cover 2 includes a first semicircular plate 21 and a second semicircular plate 22, and the first semicircular plate 21 and the second semicircular plate 22 are butted to form a circular upper cover 2; a plurality of strip-shaped bulges 30 are arranged on the butt joint plate of the first semicircular plate 21, a plurality of strip-shaped grooves 32 matched with the strip-shaped bulges 30 are arranged on the second semicircular plate 22, and the sealing effect is enhanced due to the matching of the strip-shaped bulges 30 and the strip-shaped grooves 32; still be equipped with first semicircle hole 29 on the butt joint face of first semicircle board 21, be equipped with second semicircle hole 31 on the butt joint face of second semicircle board 22, first semicircle hole 29 constitutes the confession with second semicircle hole 31 cable hole 5 that the cable passed, and press from both sides between cable hole 5 and the cable and be equipped with rubber ring 28, make upper cover 2 and cable linkage setting through the extrusion force. The detachable design of the upper cover 2 facilitates the ultrasonic probe 13 to be installed in the outer shell 1 and seal the top end of the outer shell 1, and the problem that the cross section area of the ultrasonic probe 13 is too large and cannot be inserted into the cable hole 5 to enter the cavity 12 of the outer shell 1 is solved. The upper and lower surface of upper cover 2 all is equipped with a pair of coupling assembling 9 that is used for consolidating first semicircle board 21 and second semicircle board 22, coupling assembling 9 is including setting up first U-shaped post 23 on first semicircle board 21 and setting up second U-shaped post 24 on second semicircle board 22, and articulated on first U-shaped post 23 have connecting rod 25, and the terminal both sides of connecting rod 25 are equipped with convex part 27, be equipped with on the second U-shaped post 24 with the concave part 26 that convex part 27 is corresponding. The connecting assembly 9 has the function of reinforcing the first semicircular plate 21, the second semicircular plate 22 and the second semicircular plate 22, so that the upper cover 2 has stronger rigidity and better sealing performance.

As shown in fig. 2 and 8, the inner side of the shoulder 3 is provided with a track groove 20 gradually reduced from top to bottom, the upper end surface of the telescopic sleeve 4 is provided with a plurality of bent rods 18, the bent rods 18 are made of plastic materials and can be better deformed, the tail ends of the bent rods 18 are rotatably connected with balls 19, the balls 19 roll on the track groove 20, and the track groove 20 is gradually reduced from top to bottom, so that the balls 19 are prevented from sliding out of the track groove 20 to cause the telescopic sleeve 4 to fall off, and when the telescopic sleeve 4 needs to be taken out, the telescopic sleeve 4 is pulled downwards to enable the bent rods 18 to be more easily subjected to plastic deformation so as to smoothly take out the telescopic sleeve 4; the bottom end of the shoulder 3 is also provided with a number of chamfered portions 47 for the balls 19 to roll into the track grooves 20, making it easier for the bent rod 18 to deform and enter the track grooves 20. When the outer shell 1 rotates, the telescopic sleeve 4 and the contact film 16 are fixed, multi-angle detection can be conveniently carried out at the same position, and the use flexibility is high.

As shown in fig. 1, a transparent observation window 10 is axially arranged on the surface of the outer shell 1, the observation window is made of acrylic material, and a scale mark 11 is arranged on one side of the outer shell 1, which is located on the transparent observation window 10. The position of the ultrasonic probe 13 in the cavity 12 and the liquid level of the coupling agent can be observed through the transparent observation window 10 on the surface of the outer shell 1.

The working principle is as follows: the outer shell 1 is sleeved outside the ultrasonic probe 13, the ultrasonic probe 13 is reinforced by the fixing component 14 on the inner wall of the outer shell 1, and the coupling liquid is filled in the containing cavity 12 in the outer shell 1 and submerges the ultrasonic probe 13. The lower part of the inner wall of the outer shell 1 is connected with a fixing ring 17 with an isolating film layer 15 through threads, thereby ensuring that the coupling liquid cannot flow out. The inboard of shell body 1 lower extreme circular bead 3 rotates to be connected has flexible cover 4 of contact film 16, when the couplant is packed into and is held the chamber 12 in and force isolation film layer 15 to take place downward deformation, and isolation film layer 15 bottom surface part is attached on contact film 16, and contact film 16 is attached again on skin for the inside condition of heart can be surveyed to ultrasonic probe 13, consequently, need not paint the coupling liquid on the skin surface, not only convenient to use and can not cause the discomfort for the patient. Because the telescopic sleeve 4 has good flexibility and flexibility, the outer shell 1 can rotate freely and observe the conditions inside the heart at different positions, and the contact film 16 is always attached to the surface of the skin, so that the definition of heart imaging cannot be influenced. The upper cover 2 of the outer shell 1 is in threaded connection with the upper part of the inner wall of the outer shell, a cable of the ultrasonic probe 13 penetrates through the upper cover 2 and is in linkage with the upper cover 2, the height of the ultrasonic probe 13 from the skin can be adjusted along with the rotation of the upper cover 2, and the optimal height is conveniently found to improve the heart imaging definition.

Claims

1. An adjustable shell for a cardiac ultrasound probe, comprising a shell body (1) for sleeving the outside of an ultrasound probe (13), characterized in that: a cavity (12) for containing a coupling agent is arranged in the outer shell (1), the ultrasonic probe (13) is arranged in the cavity (12), and at least three fixing components (14) for fixing the ultrasonic probe (13) are arranged on the inner wall of the outer shell (1); the upper part of the inner wall of the outer shell (1) is in threaded connection with an upper cover (2), a liquid inlet hole (7) is formed in the upper cover (2), a plug (8) is inserted in the liquid inlet hole (7), a cable of the ultrasonic probe (13) penetrates through the upper cover (2) and is in linkage with the upper cover (2), the lower part of the inner wall of the outer shell (1) is in threaded connection with a fixing ring (17), and an isolation film layer (15) is annularly connected on the fixing ring (17); the lower end of the outer shell (1) is provided with a shoulder (3), the inner side of the shoulder (3) is rotatably connected with a telescopic sleeve (4), the bottom end of the telescopic sleeve (4) is provided with a contact film (16), and when a coupling agent is filled into the cavity (12) to force the isolation film layer (15) to deform downwards, the bottom surface of the isolation film layer (15) is partially attached to the contact film (16); the upper cover (2) comprises a first semicircular plate (21) and a second semicircular plate (22), and the first semicircular plate (21) and the second semicircular plate (22) are butted to form a circular upper cover (2); a plurality of strip-shaped bulges (30) are arranged on the butt joint plate of the first semicircular plate (21), and a plurality of strip-shaped grooves (32) matched with the strip-shaped bulges (30) are arranged on the second semicircular plate (22); a first semicircular hole (29) is further formed in the butt joint surface of the first semicircular plate (21), a second semicircular hole (31) is formed in the butt joint surface of the second semicircular plate (22), the first semicircular hole (29) and the second semicircular hole (31) form a cable hole (5) for the cable to pass through, and a rubber ring (28) is clamped between the cable hole (5) and the cable; the upper surface and the lower surface of the upper cover (2) are respectively provided with a pair of connecting assemblies (9) used for reinforcing a first semicircular plate (21) and a second semicircular plate (22), each connecting assembly (9) comprises a first U-shaped column (23) arranged on the first semicircular plate (21) and a second U-shaped column (24) arranged on the second semicircular plate (22), each first U-shaped column (23) is hinged with a connecting rod (25), two sides of the tail end of each connecting rod (25) are provided with convex parts (27), and each second U-shaped column (24) is provided with a concave part (26) corresponding to each convex part (27); the inner side of the shoulder (3) is provided with a track groove (20) which is gradually reduced from top to bottom, the upper end face of the telescopic sleeve (4) is provided with a plurality of bent rods (18), the bent rods (18) are made of plastic materials, the tail ends of the bent rods (18) are rotatably connected with ball bearings (19), and the ball bearings (19) roll on the track groove (20); the bottom end of the shoulder (3) is also provided with a plurality of chamfer parts (47) for rolling balls (19) into the track grooves (20).

2. An adjustable housing for a cardiac ultrasound probe according to claim 1, wherein: the fixing assembly (14) comprises an arc-shaped bottom plate (33) arranged on the inner wall of the outer shell (1), a sliding block (35) is connected onto the arc-shaped bottom plate (33) in a sliding mode, an expansion rod (36) is arranged on the sliding block (35), a mounting seat (37) is arranged at the tail end of the expansion rod (36), an extrusion block (38) is fixed on one side, opposite to the ultrasonic probe (13), of the mounting seat (37), and a plurality of resistance increasing bulges (39) are arranged on the surface of the extrusion block (38); the stiff end of telescopic link (36) is equipped with spacing ring (40), is equipped with spring (41) between spacing ring (40) and mount pad (37).

3. An adjustable housing for a cardiac ultrasound probe according to claim 2, wherein: the bottom of slider (35) is the forked tail shape, be equipped with on arc bottom plate (33) with slider (35) looks agree with forked tail spout (34).

4. An adjustable housing for a cardiac ultrasound probe according to claim 3, wherein: the dovetail sliding grooves (34) are respectively provided with a fixed block (42) at the upper side and the lower side of the sliding block (35), and the fixed blocks (42) are in interference fit with the dovetail sliding grooves (34); the surface of the fixed block (42) is provided with a convex strip group (43), and the fixed block (42) is also provided with a locking screw (44) for fixing the fixed block (42) in a penetrating way.

5. An adjustable housing for a cardiac ultrasound probe according to claim 2, wherein: the mounting seat (37) is provided with a T-shaped bulge (46), and the extrusion block (38) is provided with a T-shaped groove (45) matched with the T-shaped bulge (46).

6. An adjustable housing for a cardiac ultrasound probe according to claim 1, wherein: the upper end surface of the upper cover (2) is provided with a pair of handles (6).

7. An adjustable housing for a cardiac ultrasound probe according to claim 1, wherein: the surface axial of shell body (1) is provided with transparent observation window (10), and the one side that lies in transparent observation window (10) on shell body (1) is equipped with scale mark (11).