阅读说明：本技术 一种超声探头固定支架 (Ultrasonic probe fixing support ) 是由 吴裕范 董杏娟 李榕婧 林洪波 潘俊民 于 2021-08-17 设计创作，主要内容包括：一种超声探头固定支架,包括固定座、用于夹持超声探头的固定夹以及连接于固定座和固定夹之间的定型软管；固定座包括下压板、固定筒、上压板和滑动筒,滑动筒一端与上压板固定连接,另一端可滑动的套设于固定筒上,固定筒远离上压板一端与下压板固定连接,固定筒内设有第一弹簧,第一弹簧一端与固定筒连接,另一端与滑动筒连接；定型软管与上压板连接。利用固定座将超声探头固定在病床上,定型软管具有韧性,可随意弯折至合适的位置,不需要手持超声探头进行穿刺操作,提高医护人员的工作效率,提高穿刺成功率,降低患者疼痛和损伤,降低感染的风险。(An ultrasonic probe fixing bracket comprises a fixing seat, a fixing clamp for clamping an ultrasonic probe and a shaping hose connected between the fixing seat and the fixing clamp; the fixing seat comprises a lower pressing plate, a fixing barrel, an upper pressing plate and a sliding barrel, one end of the sliding barrel is fixedly connected with the upper pressing plate, the other end of the sliding barrel is slidably sleeved on the fixing barrel, one end of the fixing barrel, far away from the upper pressing plate, is fixedly connected with the lower pressing plate, a first spring is arranged in the fixing barrel, one end of the first spring is connected with the fixing barrel, and the other end of the first spring is connected with the sliding barrel; the shaping hose is connected with the upper pressure plate. Utilize the fixing base to fix ultrasonic probe on the sick bed, the design hose has toughness, can buckle to suitable position at will, need not handheld ultrasonic probe to carry out the puncture operation, improves medical personnel's work efficiency, improves the puncture success rate, reduces patient pain and damage, reduces the risk of infecting.)

1. An ultrasonic probe fixed bolster which characterized in that: comprises a fixed seat (1), a fixed clamp (2) used for clamping an ultrasonic probe (3) and a shaping hose (4) connected between the fixed seat (1) and the fixed clamp (2); the fixing seat (1) comprises a lower pressing plate (11), a fixing cylinder (12), an upper pressing plate (14) and a sliding cylinder (13), one end of the sliding cylinder (13) is fixedly connected with the upper pressing plate (14), the other end of the sliding cylinder is slidably sleeved on the fixing cylinder (12), one end, far away from the upper pressing plate (14), of the fixing cylinder (12) is fixedly connected with the lower pressing plate (11), a first spring (15) is arranged in the fixing cylinder (12), one end of the first spring (15) is connected with the fixing cylinder (12), and the other end of the first spring is connected with the sliding cylinder (13); the shaping hose (4) is connected with the upper pressure plate (14).

2. The ultrasound probe fixing bracket according to claim 1, wherein: one end of the first spring (15) is provided with a first extending rod part (16) extending vertically upwards and a first disc part (17) formed by coiling a free end of the first extending rod part (16), and the other end of the first spring (15) is provided with a second extending rod part (18) extending vertically downwards and a second disc part (19) formed by coiling a free end of the second extending rod part (18); a first fixing plate (121) with a first through hole is arranged in the fixing cylinder (12), a second fixing plate (131) with a second through hole is arranged in the sliding cylinder (13), the first extending rod portion (16) penetrates through the first through hole, the first disc portion (17) is blocked above the second fixing plate (131), and the second extending rod portion (18) penetrates through the second through hole, and the second disc portion (19) is blocked below the first fixing plate (121).

3. The ultrasound probe fixing bracket according to claim 2, wherein: a sliding ring (132) protrudes from the inner wall of the sliding cylinder (13), and a first limiting step (122) used for limiting the upward position of the sliding cylinder (13) is arranged on the outer wall of the fixed cylinder (12).

4. The ultrasound probe fixing bracket according to claim 1, wherein: the fixing clamp (2) comprises a connecting plate (22), a first clamping arm (21) and a second clamping arm (23) which are arranged on two sides of the connecting plate (22), and the first clamping arm (21) and the second clamping arm (23) are clamped in a matched mode; the connecting plate (22) is provided with a side hole (24), the first clamping arm (21) is provided with a connecting piece (25), the connecting piece (25) is in a rod shape, the length of the connecting piece is not larger than the depth of the side hole (24), one end of the connecting piece (25) is inserted into the side hole (24) and sleeved with a second spring (26), and the other end of the connecting piece (25) is exposed out of the side hole (24) under the elastic action of the second spring (26) and is fixedly connected with the first clamping arm (21); the second clamping arm (23) is fixedly connected with the connecting plate (22).

5. The ultrasound probe securement bracket of claim 4, wherein: one end of the connecting piece (25) is bent downwards and extended to form an embedded part (27), the embedded part (27) is embedded into the first clamping arm (21) and is fixedly connected with the first clamping arm, and a second limiting step (28) is arranged at the other end of the connecting piece (25); a stop block (29) is protruded on the inner wall of the side hole (24), and the second spring (26) is stopped between the second limiting step (28) and the stop block (29).

6. The ultrasound probe securement bracket of claim 5, wherein: the number of the connecting pieces (25) is two, and the two connecting pieces (25) are respectively positioned on two sides of the first clamping arm (21).

7. The ultrasound probe securement bracket of claim 6, wherein: the first clamping arm (21) comprises a U-shaped plate (211) and a first clamping plate (212), two sides of an opening of the U-shaped plate (211) are respectively connected with the two connecting pieces (25), a non-opening side of the U-shaped plate (211) is connected with the first clamping plate (212), and a first clamping groove (213) is formed between the first clamping plate (212) and the connecting plate (22); the second clamping arm (23) comprises a flat plate (231) and a second clamping plate (232), one side of the flat plate (231) is connected with the second clamping plate (232), the other side of the flat plate is connected with the connecting plate (22), and a second clamping groove (233) is formed between the second clamping plate (232) and the connecting plate (22).

8. The ultrasound probe securement bracket of claim 7, wherein: and anti-skid rubber pads are paved on the inner walls of the first clamping groove (213) and the second clamping groove (233).

9. The ultrasound probe fixing bracket according to claim 1, wherein: the upper pressing plate (14) is provided with a supporting column (5), a telescopic assembly (6) is connected between the supporting column (5) and the shaping hose (4), one end of the telescopic assembly (6) is hinged to the supporting column (5), and the other end of the telescopic assembly is connected with the shaping hose (4).

10. The ultrasound probe securement bracket of claim 9, wherein: the telescopic assembly (6) comprises an inner sleeve (61) and an outer sleeve (62), the outer sleeve (62) is of a structure with one closed end and a hollow inner part, the inner sleeve (61) is of a structure with two open ends and a hollow inner part, one end of the inner sleeve (61) is inserted into the outer sleeve (62) from the open end of the outer sleeve (62) in a telescopic manner, and the closed end of the outer sleeve (62) is hinged with the support column (5); one end of the shaping hose (4) passes through the inner sleeve (61) and is fixedly connected with the inner bottom wall of the outer sleeve (62).

Technical Field

The invention relates to a fixed support, in particular to an ultrasonic probe fixed support.

Background

At present, ultrasonic detection is increasingly applied to the fields of rapid diagnosis and treatment of the conditions of normal and critical patients, blood vessel positioning and regional nerve block, perioperative continuous monitoring of cardiac function and the like. Among the procedures commonly done by nurses are ultrasound-guided PICC puncture and ultrasound-guided indwelling needle venipuncture.

The operation method of the ultrasonic guided indwelling needle venipuncture is mainly characterized in that one hand holds an ultrasonic probe, the other hand performs the indwelling needle puncture operation, the skin is tightened while the puncture operation is performed by one hand, and the puncture operation is difficult to perform. Moreover, the ultrasonic probe is easy to displace when being held by hands, and the strain of each joint of the hand of medical staff can be caused when the posture of holding the ultrasonic probe is kept for a long time.

Therefore, an ultrasonic probe fixing bracket needs to be designed to facilitate the auxiliary ultrasonic probe to guide venipuncture.

Disclosure of Invention

The invention aims to provide an ultrasonic probe fixing bracket which is convenient for assisting an ultrasonic probe in guiding venipuncture.

In order to solve the technical problems, the invention adopts the following technical scheme:

an ultrasonic probe fixing bracket comprises a fixing seat, a fixing clamp for clamping an ultrasonic probe and a shaping hose connected between the fixing seat and the fixing clamp; the fixing seat comprises a lower pressing plate, a fixing barrel, an upper pressing plate and a sliding barrel, one end of the sliding barrel is fixedly connected with the upper pressing plate, the other end of the sliding barrel is slidably sleeved on the fixing barrel, one end of the fixing barrel, far away from the upper pressing plate, is fixedly connected with the lower pressing plate, a first spring is arranged in the fixing barrel, one end of the first spring is connected with the fixing barrel, and the other end of the first spring is connected with the sliding barrel; the shaping hose is connected with the upper pressure plate.

As a further improvement of the above technical solution:

one end of the first spring is provided with a first extending rod part extending vertically upwards and a first disc part formed by coiling a free end of the first extending rod part, and the other end of the first spring is provided with a second extending rod part extending vertically downwards and a second disc part formed by coiling a free end of the second extending rod part; the fixed cylinder is internally provided with a first fixed plate with a first through hole, the sliding cylinder is provided with a second fixed plate with a second through hole, the first extension rod part penetrates through the first through hole and the first disc part is blocked above the second fixed plate, and the second extension rod part penetrates through the second through hole and the second disc part is blocked below the first fixed plate. First spring and first disc portion and second disc portion integrated into one piece, not only reduce cost has improved structural strength moreover, also makes the motion of solid fixed cylinder and slide cylinder more stable simultaneously, and the slide cylinder can not break away from solid fixed cylinder at solid fixed cylinder slip in-process.

Furthermore, a sliding ring is protruded on the inner wall of the sliding cylinder, and a first limiting step for limiting the upward position of the sliding cylinder is arranged on the outer wall of the fixed cylinder. Further, the sliding cylinder is prevented from being separated from the fixed cylinder, the first spring is well protected, and the service life of the first spring is prolonged.

The fixing clamp comprises a connecting plate, a first clamping arm and a second clamping arm, wherein the first clamping arm and the second clamping arm are arranged on two sides of the connecting plate and are clamped in a matched mode; the connecting plate is provided with a side hole, the first clamping arm is provided with a connecting piece, the connecting piece is in a rod shape, the length of the connecting piece is not more than the depth of the side hole, one end of the connecting piece is inserted into the side hole and sleeved with a second spring, and the other end of the connecting piece is exposed out of the side hole under the action of the elastic force of the second spring and is fixedly connected with the first clamping arm; the second clamping arm is fixedly connected with the connecting plate. Pulling the first clamping arm, increasing the distance between the first clamping arm and the second clamping arm, and placing the ultrasonic probe between the first clamping arm and the second clamping arm; and loosening the first clamping arm, clamping the ultrasonic probe by the first clamping arm under the elastic action of the second spring in cooperation with the second clamping arm, and grabbing the ultrasonic probe by the fixing clamp. The operation is convenient and fast.

Furthermore, one end of the connecting piece is bent downwards and extended to form an embedded part, the embedded part is embedded into the first clamping arm and is fixedly connected with the first clamping arm, and the other end of the connecting piece is provided with a second limiting step; the inner wall of the side hole is protruded with a stop block, and the second spring is blocked between the second limit step and the stop block. The connecting piece is two, and two connecting pieces are located first centre gripping arm both sides respectively. The connection between the connecting piece and the first clamping arm is more stable.

Furthermore, the first clamping arm comprises a U-shaped plate and a first clamping plate, two sides of an opening of the U-shaped plate are respectively connected with the two connecting pieces, a non-opening side of the U-shaped plate is connected with the first clamping plate, and a first clamping groove is formed between the first clamping plate and the connecting plate; the second clamping arm comprises a flat plate and a second clamping plate, one side of the flat plate is connected with the second clamping plate, the other side of the flat plate is connected with the connecting plate, and a second clamping groove is formed between the second clamping plate and the connecting plate. The ultrasonic probe is clamped into the first clamping groove and the second clamping groove simultaneously, so that the ultrasonic probe can be grabbed by the fixing clamp more firmly. The dull and stereotyped weight reduction relatively of U template makes things convenient for the pulling, utilizes the opening of U template moreover, makes things convenient for medical personnel's hand to insert by the opening of U template and snatchs, and it is more convenient to take first centre gripping arm, avoids skidding. U template opening both sides are connected with two connecting pieces respectively, and is rational in infrastructure, makes the connecting piece more firm with being connected of first centre gripping arm.

Furthermore, anti-skidding rubber mats are laid on the inner walls of the first clamping groove and the second clamping groove. The friction force of the contact surface of the fixing clamp and the ultrasonic probe is increased, and the ultrasonic probe is prevented from sliding off.

The upper press plate is provided with a support column, a telescopic assembly is connected between the support column and the shaping hose, one end of the telescopic assembly is hinged to the support column, and the other end of the telescopic assembly is connected with the shaping hose. The length of the shaping hose can be increased, and the adjusting range is enlarged.

Furthermore, the telescopic assembly comprises an inner sleeve and an outer sleeve, the outer sleeve is of a structure with one closed end and a hollow interior, the inner sleeve is of a structure with two open ends and a hollow interior, one end of the inner sleeve is inserted into the outer sleeve in a telescopic mode from the open end of the outer sleeve, and the closed end of the outer sleeve is hinged with the support column; one end of the shaping hose penetrates through the inner sleeve and is fixedly connected with the inner bottom wall of the outer sleeve. The mode that the shaping hose and the telescopic assembly are combined is adopted, one part of the shaping hose can be accommodated in the inner sleeve, and the length of the shaping hose is shortened, so that the rigidity of the mobile phone support is greatly improved, and the ultrasonic probe is ensured to be fixed at a proper position and is not easy to move.

Compared with the prior art, the invention has the advantages that:

1. utilize the fixing base to fix ultrasonic probe on the sick bed, the design hose has toughness, can buckle to suitable position at will, need not handheld ultrasonic probe to carry out the puncture operation, improves medical personnel's work efficiency, improves the puncture success rate, reduces patient pain and damage, reduces the risk of infecting.

2. The fixing base adopts the form of upper and lower clamp plate, and the adjustment aperture of upper clamp plate and lower clamp plate adopts the elastic action of spring to make upper clamp plate and lower clamp plate centre gripping sick bed for ultrasonic probe is fixed firm, avoids producing and rocks.

Drawings

Fig. 1 is a schematic structural view of an ultrasonic probe fixing bracket.

Fig. 2 is a partial sectional view of an ultrasound probe fixing mount.

Fig. 3 is an enlarged view of D of fig. 2.

Fig. 4 is a schematic structural view of the first spring.

Fig. 5 is a schematic structural view of the fixing clip.

Fig. 6 is an exploded view of the retaining clip.

Fig. 7 is a top view of the retaining clip.

Fig. 8 is a sectional view a-a of fig. 7.

Fig. 9 is an enlarged view of B of fig. 8.

Fig. 10 is a schematic structural view of the pivot base.

Fig. 11 is an exploded view of the hub.

Description of reference numerals:

1. a fixed seat; 2. a fixing clip; 3. an ultrasonic probe; 4. shaping the hose; 5. a support pillar; 6. a telescoping assembly; 7. a pivot seat; 11. a lower pressing plate; 12. a fixed cylinder; 13. a sliding cylinder; 14. an upper pressure plate; 15. a first spring; 16. a first elongated rod portion; 17. a first disc portion; 18. a second elongated rod portion; 19. a second disk section; 21. a first clamp arm; 22. a connecting plate; 23. a second clamp arm; 24. a side hole; 25. a connecting member; 26. a second spring; 27. a pre-embedding part; 28. a second limit step; 29. a stopper; 61. an inner sleeve; 62. an outer sleeve; 64. a ball head; 70. a handle; 71. a motherboard; 72. a screw; 73. a nut; 74. A daughter board; 75. a second groove; 76. a first groove; 77. a groove; 78. a hemispherical groove; 79. a first mounting groove; 121. a first fixing plate; 122. a first limit step; 131. a second fixing plate; 132. a slip ring; 211. A U-shaped plate; 212. a first clamping plate; 213. a first card slot; 231. a flat plate; 232. a second clamping plate; 233. And a second card slot.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, there will now be described in detail, with reference to the accompanying drawings, a non-limiting detailed description of the present invention.

As shown in fig. 1 to 11, the ultrasonic probe fixing bracket of the present embodiment includes a fixing base 1, a fixing clip 2 for clamping an ultrasonic probe 3, and a shaping hose 4 connected between the fixing base 1 and the fixing clip 2. Utilize fixing base 1 to fix ultrasonic probe 3 on the sick bed, design hose 4 has toughness, can buckle to suitable position at will, need not handheld ultrasonic probe 3 to carry out the puncture operation, improves medical personnel's work efficiency, improves the puncture success rate, reduces patient's pain and damage, reduces the risk of infecting.

The fixed seat 1 comprises a lower pressure plate 11, a fixed cylinder 12, an upper pressure plate 14 and a sliding cylinder 13, one end of the sliding cylinder 13 is fixedly connected with the upper pressure plate 14, the other end of the sliding cylinder 13 is slidably sleeved on the fixed cylinder 12, one end of the fixed cylinder 12, far away from the upper pressure plate 14, is fixedly connected with the lower pressure plate 11, a first spring 15 is arranged in the fixed cylinder 12, one end of the first spring 15 is connected with the fixed cylinder 12, and the other end of the first spring is connected with the sliding cylinder 13; the shaping hose 4 is connected with an upper press plate 14. One end of the first spring 15 is provided with a first extending rod part 16 extending vertically upwards and a first disc part 17 formed by coiling a free end of the first extending rod part 16, and the other end of the first spring 15 is provided with a second extending rod part 18 extending vertically downwards and a second disc part 19 formed by coiling a free end of the second extending rod part 18; the fixed cylinder 12 is provided with a first fixed plate 121 having a first through hole, the sliding cylinder 13 is provided with a second fixed plate 131 having a second through hole, the first elongated rod portion 16 passes through the first through hole and the first disc portion 17 is blocked above the second fixed plate 131, the second elongated rod portion 18 passes through the second through hole and the second disc portion 19 is blocked below the first fixed plate 121. The inner wall of the sliding cylinder 13 is protruded with a sliding ring 132, and the outer wall of the fixed cylinder 12 is provided with a first limit step 122 for limiting the upward position of the sliding cylinder 13.

The fixing clamp 2 comprises a connecting plate 22, a first clamping arm 21 and a second clamping arm 23 which are arranged on two sides of the connecting plate 22, and the first clamping arm 21 and the second clamping arm 23 are clamped in a matched mode; the connecting plate 22 is provided with a side hole 24, the first clamping arm 21 is provided with a connecting piece 25, the connecting piece 25 is in a rod shape with the length not larger than the depth of the side hole 24, one end of the connecting piece 25 is inserted into the side hole 24 and sleeved with a second spring 26, and the other end of the connecting piece 25 is exposed out of the side hole 24 under the elastic action of the second spring 26 and is fixedly connected with the first clamping arm 21; the second holding arm 23 is fixedly connected to the connecting plate 22. One end of the connecting piece 25 is bent downwards and extended to form an embedded part 27, the embedded part 27 is embedded into the first clamping arm 21 and fixedly connected with the first clamping arm, and the other end of the connecting piece 25 is provided with a second limiting step 28; a stop 29 protrudes from the inner wall of the side hole 24, and the second spring 26 is stopped between the second limit step 28 and the stop 29. The number of the connecting pieces 25 is two, and the two connecting pieces 25 are respectively positioned at two sides of the first clamping arm 21. The first clamping arm 21 comprises a U-shaped plate 211 and a first clamping plate 212, two sides of an opening of the U-shaped plate 211 are respectively connected with the two connecting pieces 25, a non-opening side of the U-shaped plate 211 is connected with the first clamping plate 212, and a first clamping groove 213 is formed between the first clamping plate 212 and the connecting plate 22; the second clamping arm 23 comprises a flat plate 231 and a second clamping plate 232, one side of the flat plate 231 is connected with the second clamping plate 232, the other side of the flat plate 231 is connected with the connecting plate 22, and a second clamping groove 233 is formed between the second clamping plate 232 and the connecting plate 22. Anti-skid rubber pads are paved on the inner walls of the first clamping groove 213 and the second clamping groove 233.

The shaping hose 4 is preferably made of metal. The metal material is more favorable for the shaping of the shaping hose 4 at any suitable position. A support column 5 is connected between the shaping hose 4 and the upper pressure plate 14. Be connected with flexible subassembly 6 between support column 5 and the design hose 4, flexible subassembly 6 one end is articulated with support column 5, and the other end is connected with design hose 4. The telescopic assembly 6 comprises an inner sleeve 61 and an outer sleeve 62, the outer sleeve 62 is a structure with one closed end and hollow inside, the inner sleeve 61 is a structure with two open ends and hollow inside, one end of the inner sleeve 61 is telescopically inserted into the outer sleeve 62 from the open end of the outer sleeve 62, and the closed end of the outer sleeve 62 is hinged with the support column 5; one end of the shaping hose 4 passes through the inner sleeve 61 and is fixedly connected with the inner bottom wall of the outer sleeve 62. The outer sleeve 62 has a threaded hole in its wall, and the inner sleeve 61 and the outer sleeve 62 are fixed relative to each other by screwing a bolt into the threaded hole. The inner sleeve 61 and the outer sleeve 62 can be relatively fixed by screwing the bolts, and the operation is simple. The support pillar 5 is provided with a pivot seat 7, the pivot seat 7 is provided with a groove 77, both sides of the inner wall of the groove 77 are provided with hemispherical grooves 78, the closed end of the outer sleeve 62 is provided with a ball head 64, and the ball head 64 is clamped into the two hemispherical grooves 78 at the same time. By utilizing the matching of the ball head 64 and the two hemispherical grooves 78, the closed end of the outer sleeve 62 is hinged with the support column 5, the angle range of the outer sleeve 62 which can swing is enlarged, the position of the ultrasonic probe 3 can be adjusted more flexibly, the working efficiency of medical personnel is improved, and the success rate of puncture is also improved. The pivot base 7 comprises a mother plate 71, a daughter plate 74, a screw 72 and a nut 73, the mother plate 71 is provided with a first mounting hole penetrating through the mother plate, the daughter plate 74 is provided with a second mounting hole, one end of the screw 72 simultaneously penetrates through the first mounting hole and the second mounting hole and is in threaded connection with the nut 73, the other end of the screw 72 is provided with a handle 70, and the handle 70 is blocked outside the first mounting hole and the second mounting hole; the mother board 71 is provided with a first groove 76, the daughter board 74 is provided with a second groove 75, and the first groove 76 and the second groove 75 are combined to form a recess 77. After the angle at which the outer sleeve 62 can swing is adjusted, the nut 73 is rotated, and the mother board 71 and the daughter board 74 are clamped by the nut 73 and the handle 70, so that the outer sleeve 62 is fixed at a proper angle. Two sections of thread areas with opposite thread directions are formed on the surface of the screw 72, an internal thread matched with one thread area of the screw 72 is arranged on the wall of the first mounting hole, an internal thread matched with the other thread area of the screw 72 is arranged on the wall of the second mounting hole, the mother board 71 and the daughter board 74 are respectively positioned in the two thread areas of the screw 72, and the ball head 64 is clamped by the mother board 71 and the daughter board 74 after the screw 72 is rotated. Mother board 71 is equipped with first mounting groove 79, and daughter board 74 is equipped with the second mounting groove, and first mounting groove 79 and second mounting groove are gone into simultaneously to support column 5, and mother board 71 and daughter board 74 centre gripping support column 5 behind the rotatory screw rod 72. The screw 72 is rotated clockwise, the mother plate 71 and the daughter plate 74 move oppositely, the distance between the mother plate 71 and the daughter plate 74 is reduced, the mother plate 71 and the daughter plate 74 clamp the support column 5 and the ball head 64 simultaneously, and the pivot base 7, the outer sleeve 62 and the support column 5 are fixed relatively. The screw 72 is rotated anticlockwise, the mother board 71 and the daughter board 74 move relatively, the distance between the mother board 71 and the daughter board 74 is increased, the support column 5 and the ball head 64 are simultaneously loosened by the mother board 71 and the daughter board 74, the pivot base 7, the outer sleeve 62 and the support column 5 can be detached, and the storage is convenient.

When the ultrasonic probe fixing support is used, the fixing support is fixed to a bed head or a bed head fixing frame by using the upper pressing plate 14 and the lower pressing plate 11, the ultrasonic probe 3 is clamped to the fixing clamp 2, the position of the shaping hose 4, the distance between the telescopic assembly 6 and the fixing seat 1 and the angle between the supporting column 5 and the telescopic assembly 6 are adjusted, and the ultrasonic probe 3 can be ensured to be fixed at a proper position and kept at the position until the puncture of medical staff is finished.