Ultrasonic pressure adjusting device adopting strain gauges

Abstract

The utility model discloses an ultrasonic pressure adjusting device adopting strain gauges, and relates to the technical field of ultrasonic pressure adjusting devices. According to the ultrasonic pressure adjusting device adopting the strain gauge, a probe makes contact with the skin firstly, at the moment, a pneumatic block can pump in gas according to a set pressure point, so that the pressure in a driving block is increased, an inner moving rod of the driving block moves under the action of air pressure, then the probe makes moving contact, and the pressure in the driving block is adjusted. Meanwhile, the resistance strain gauge attached to the probe can sense the pressure change caused by the skin, so that the entering depth of the probe is controlled, a doctor does not need to spend own strength to control or adjust a spring to change the strength of the probe, and the depth change can be realized only by dictating the pressure value or inputting the pressure value; meanwhile, the bottom of the base and the large groove form a bottom plate which can block the contact plate and prevent the probe from being too deep to hurt the patient, and the safety of the instrument is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of ultrasonic pressure regulating devices, in particular to an ultrasonic pressure regulating device using a strain gauge. Background Art

[0002] Ultrasonic probes are used in medical facilities such as B-ultrasound examinations. During the use of ultrasonic probes, the patient's body needs to be squeezed and tested with the ultrasonic probes.

[0003] According to the Chinese patent: CN218304946U (ultrasound probe assisted pressurization device, application date: 2023.01.17), in order to solve the problem in the prior art that doctors need to use a lot of force when using the probe to examine patients with thick fat, and need to maintain the same posture for a long time, which is easy to get injured. The patent provides a technical solution to control the pressure applied by the probe through a bracket and an electromagnetic mechanism, and adjust the position through a universal joint and a telescopic rod, and finally adjust the pressure through a knob.

[0004] However, the above patent still has the following problems: 1. The above patent moves the position through structures such as universal rods, but two steps are still required. The first is to move the universal rod by hand, and the second is to move the hand from the universal rod to the probe. In this process, the doctor's arm needs to move twice and may be interfered by the bracket. 2. The patent changes the pressure by adjusting the knob, which may result in the doctor needing to adjust the knob multiple times during detection, which is time-consuming and troublesome. For this reason, the utility model provides an ultrasonic pressure adjustment device using a strain gauge. Utility Model Content

[0005] In view of the shortcomings of the prior art, the utility model provides an ultrasonic pressure adjustment device using a strain gauge, which solves the problem that the prior device has many steps and is laborious to use when performing detection.

[0006] To achieve the above purpose, the utility model is implemented through the following technical solutions: an ultrasonic pressure adjustment device using a strain gauge, comprising a base and a mounting column, the mounting column is connected to the base through a movable mechanism, the surface of the base is provided with an adjustment mechanism, the adjustment mechanism comprises a pad, the pad is fixed to the surface of the base, the pad is connected to the base through a handheld component, the surface of the base is provided with a top opening, the top opening is connected to a driving block through a clamping component, the surface of the base is provided with a large groove, the large groove is connected to a contact plate through an elastic component, the bottom of the base is provided with a through groove, the surface of the contact plate is fixed with a probe, the surface of the probe is fixed with a resistance strain gauge, and the side of the probe is installed with a control chip.

[0007] Preferably, the handheld assembly comprises a handheld rod and a handheld cavity, the pad and the base form the handheld cavity, and the handheld rod connects the pad and the base.

[0008] Preferably, the clamping assembly comprises a clamping piece and a clamping socket, the clamping socket is provided on the surface of the top opening, the clamping piece is fixed on the side surface of the driving block, and the clamping piece and the clamping socket are clamped.

[0009] Preferably, the elastic component includes a sliding rod and a spring, the spring connects the contact plate to the base, two ends of the sliding rod are fixedly connected between the contact plate and the base, and the contact plate slides through the surface of the sliding rod.

[0010] Preferably, the movable mechanism comprises a movable rod and a universal block, the movable rod is mounted on the surface of the mounting column, the universal block connects the movable rod with the base and the mounting column, and a contact assembly is provided on the surface of the movable rod.

[0011] Preferably, the contact assembly comprises a contact ring and a pneumatic block, the pneumatic block is fixed on the surface of the movable rod, and the contact ring is installed on the surface of the movable rod.

[0012] Beneficial Effects

[0013] The utility model provides an ultrasonic pressure adjustment device using a strain gauge. Compared with the prior art, it has the following beneficial effects:

[0014] (1) The ultrasonic pressure adjustment device using strain gauges, through the contact effect of the probe, first contacts the skin. At this time, the pneumatic block will pump gas according to the set pressure point, thereby increasing the pressure inside the drive block, so that the internal moving rod of the drive block moves under the action of air pressure, and then the probe moves and contacts. At the same time, the resistance strain gauge attached to the probe will sense the pressure change brought by the skin, thereby controlling the insertion depth of the probe. The doctor does not need to spend his own effort to control or adjust the spring to change the strength of the probe. He only needs to orally state the pressure value or input the pressure value to achieve the change of depth. At the same time, the bottom of the base and the large groove form a bottom plate to block the contact plate to prevent the probe from going too deep and hurting the patient, thereby ensuring the safety of the instrument.

[0015] (2) When the ultrasonic pressure adjustment device using strain gauges needs to adjust the probe position, the doctor only needs to put his arm deep into the contact ring and then follow the movement of the arm to easily and freely adjust the position of the probe. At the same time, the doctor's hand can also directly control the probe. The doctor does not need to move the bracket first and then put his hand on the probe to perform the change operation, and will not be interfered by the bracket. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1This is a schematic diagram of the adjustment mechanism structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the probe structure of the utility model;

[0018] Figure 3 It is a structural schematic diagram of the utility model.

[0019] In the figure: 1-base, 2-movable mechanism, 21-movable rod, 22-universal block, 3-adjustment mechanism, 31-pad, 32-top port, 33-driving block, 34-large slot, 35-contact plate, 36-through slot, 37-probe, 38-resistance strain gauge, 39-control chip, 4-handheld component, 41-handheld rod, 42-handheld cavity, 5-clamping component, 51-clamp, 52-bayonet, 6-elastic component, 61-sliding rod, 62-spring, 7-contact component, 71-contact ring, 72-pneumatic block, 9-mounting column. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-3 , the utility model provides two technical solutions:

[0022] Embodiment 1

[0023] An ultrasonic pressure adjustment device using a strain gauge includes a base 1 and a mounting column 9, wherein the mounting column 9 is connected to the base 1 through a movable mechanism 2, the movable mechanism 2 is used for flexible movement of the base 1, an adjustment mechanism 3 is arranged on the surface of the base 1, the adjustment mechanism 3 includes a pad 31, the pad 31 is fixed on the surface of the base 1, the pad 31 is connected to the base 1 through a handheld component 4, a top opening 32 is opened on the surface of the base 1, the top opening 32 is connected to a driving block 33 through a clamping component 5, the driving block 33 is a small cylinder connected and driven through an external air path, a large groove 34 is opened on the surface of the base 1, and the large groove 34 is connected to a contact plate through an elastic component 6 35, the bottom of the base 1 and the large groove 34 form a bottom plate to block the contact plate 35 to prevent the probe 37 from going too deep and thus hurting the patient. A through groove 36 is provided at the bottom of the base 1, and a probe 37 is fixed on the surface of the contact plate 35. The probe 37 is aligned with the through groove 36 and can pass through the through groove 36. A resistance strain gauge 38 is fixed on the surface of the probe 37. The model of the resistance strain gauge 38 is a foil 350Ω dual-axis overlapping configuration strain gauge. A control chip 39 is installed on the side of the probe 37. The control chip 39 is connected to the resistance strain gauge 38 through an internal circuit, and the control chip 39 is connected to the external pneumatic block 72 through a control line.

[0024] Embodiment 2

[0025] An ultrasonic pressure adjustment device using a strain gauge includes a base 1 and a mounting column 9, the mounting column 9 is connected to the base 1 through a movable mechanism 2, the movable mechanism 2 includes a movable rod 21 and a universal block 22, the movable rod 21 has multiple movable joints that can adapt to the movement of a human arm, the movable rod 21 is installed on the surface of the mounting column 9, the universal block 22 connects the movable rod 21 with the base 1 and the mounting column 9, and a contact component 7 is provided on the surface of the movable rod 21, the contact component 7 includes a contact ring 71 and a pneumatic block 72. When the probe position needs to be adjusted, the doctor only needs to put his arm deep into the contact ring 71, and then follow the movement of the arm to conveniently and arbitrarily adjust the position of the probe. At the same time, the doctor's hand can also directly control the probe without the doctor having to move the bracket first and then Then put your hand on the probe to perform the transposition operation, and it will not be disturbed by the bracket. The pneumatic block 72 is connected to the driving block 33 through the air pipe. The contact ring 71 is made of soft material. The pneumatic block 72 is fixed on the surface of the movable rod 21. The contact ring 71 is installed on the surface of the movable rod 21. The movable mechanism 2 is used for the flexible movement of the base 1. The surface of the base 1 is provided with an adjustment mechanism 3. The adjustment mechanism 3 includes a pad 31. The pad 31 is fixed on the surface of the base 1. The pad 31 is connected to the base 1 through a handheld component 4. The handheld component 4 includes a handheld rod 41 and a handheld cavity 42. The pad 31 and the base 1 form a handheld cavity 42. The handheld rod 41 connects the pad 31 to the base 1. The surface of the base 1 is provided with a top opening 32, and the top opening 32 is connected by a clamping component 5 A driving block 33 is connected, and the clamping assembly 5 includes a clamping piece 51 and a bayonet 52. The clamping piece 51 is connected to the driving block 33 through an internal spring. The clamping piece 51 can be contracted by squeezing, and the clamping piece 51 can also be contracted by using a suction tool in the middle part of the driving block 33. The bayonet 52 is opened on the surface of the top opening 32, and the clamping piece 51 is fixed on the side of the driving block 33. The clamping piece 51 and the bayonet 52 are clamped. The driving block 33 is a small cylinder connected and driven by an external air circuit. A large groove 34 is opened on the surface of the base 1, and the large groove 34 is connected to the contact plate 35 through an elastic assembly 6. The elastic assembly 6 includes a sliding rod 61 and a spring 62. The spring 62 connects the contact plate 35 to the base 1. The two ends of the sliding rod 61 are fixedly connected between the contact plate 35 and the base 1. The plate 35 slides through the surface of the sliding rod 61, and the bottom of the base 1 and the large groove 34 form a bottom plate to block the contact plate 35 to prevent the probe 37 from going too deep and thus hurting the patient. A through groove 36 is provided at the bottom of the base 1, and a probe 37 is fixed on the surface of the contact plate 35. Through the contact effect of the probe 37, the probe 37 first contacts the skin. At this time, the pneumatic block 72 will pump gas according to the set pressure point, thereby increasing the pressure inside the driving block 33, so that the internal moving rod of the driving block 33 moves under the action of the air pressure, and then the probe 37 moves and contacts. At the same time, the resistance strain gauge 38 attached to the probe 37 will feel the pressure change brought by the skin, and the deformation will change the resistance of the resistance strain gauge 38.The change of the electrical signal generated by the change of resistance is compared with the set pressure value through the translation code of the control chip 39. The set pressure value is input through the external computer control, and the air pressure adjustment of the pneumatic block 72 is controlled to control the entry depth of the probe 37. In this process, the doctor does not need to spend his own effort to control or adjust the spring to change the strength of the probe. The depth change can be achieved by simply orally stating the pressure value or inputting the pressure value. At the same time, the bottom of the base 1 and the large groove 34 form a bottom plate to block the contact plate 35 to prevent the probe 37 from going too deep and hurting the patient, ensuring the safety of the instrument. The probe 37 is aligned with the through groove 36 and can pass through the through groove 36. The surface of the probe 37 is fixed with a resistance strain gauge 38. The model of the resistance strain gauge 38 is a foil 350Ω double-axis overlapping configuration strain gauge. The side of the probe 37 is installed with a control chip 39. The control chip 39 is connected to the resistance strain gauge 38 through an internal circuit, and the control chip 39 is connected to the external pneumatic block 72 through a control line. ,

[0026] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0027] During operation, through the contact effect of the probe 37, the probe 37 first contacts the skin. At this time, the pneumatic block 72 will pump gas according to the set pressure point, thereby increasing the pressure inside the drive block 33, so that the internal moving rod of the drive block 33 moves under the action of the air pressure, and then the probe 37 moves and contacts. At the same time, the resistance strain gauge 38 attached to the probe 37 will feel the pressure change brought by the skin. At the same time, the deformation changes the resistance of the resistance strain gauge 38. The change in resistance generates an electrical signal, which is translated and coded by the control chip 39 and compared with the set pressure value. The set pressure value is input through an external computer control, and the air pressure adjustment of the pneumatic block 72 is controlled, thereby controlling the advancement of the probe 37. The depth of insertion is determined by the insertion depth. During this process, the doctor does not need to spend his own effort to control or adjust the spring to change the strength of the probe. The depth change can be achieved by only orally stating the pressure value or inputting the pressure value. At the same time, the bottom of the base 1 and the large groove 34 form a bottom plate to block the contact plate 35 to prevent the probe 37 from going too deep and thus injuring the patient, thereby ensuring the safety of the instrument. When the probe position needs to be adjusted, the doctor only needs to put his arm deep into the contact ring 71, and then follow the movement of the arm to conveniently and arbitrarily adjust the position of the probe. At the same time, the doctor's hand can also directly control the probe, and the doctor does not need to move the bracket first and then put his hand on the probe for the transposition operation, and will not be interfered by the bracket.

[0028] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An ultrasonic pressure adjustment device using a strain gauge, comprising a base (1) and a mounting column (9), characterized in that: The mounting column (9) is connected to the base (1) via a movable mechanism (2), and an adjustment mechanism (3) is provided on the surface of the base (1); The adjustment mechanism (3) comprises a pad (31), the pad (31) being fixed on the surface of the base (1), the pad (31) being connected to the base (1) via a handheld component (4), the surface of the base (1) being provided with a top opening (32), the top opening (32) being connected to a driving block (33) via a snap-on component (5), the surface of the base (1) being provided with a large groove (34), the large groove (34) being connected to a contact plate (35) via an elastic component (6), the bottom of the base (1) being provided with a through groove (36), the surface of the contact plate (35) being fixed with a probe (37), the surface of the probe (37) being fixed with a resistance strain gauge (38), and the side of the probe (37) being mounted with a control chip (39).

2. The ultrasonic pressure adjustment device using a strain gauge according to claim 1, characterized in that: The handheld assembly (4) comprises a handheld rod (41) and a handheld cavity (42); the pad (31) and the base (1) form the handheld cavity (42); and the handheld rod (41) connects the pad (31) and the base (1).

3. The ultrasonic pressure adjustment device using a strain gauge according to claim 1, characterized in that: The clamping assembly (5) comprises a clamping piece (51) and a clamping socket (52); the clamping socket (52) is provided on the surface of the top opening (32); the clamping piece (51) is fixed on the side of the driving block (33); and the clamping piece (51) and the clamping socket (52) are clamped.

4. The ultrasonic pressure adjustment device using a strain gauge according to claim 1, characterized in that: The elastic component (6) comprises a sliding rod (61) and a spring (62), wherein the spring (62) connects the contact plate (35) to the base (1), and the two ends of the sliding rod (61) are fixedly connected between the contact plate (35) and the base (1), and the contact plate (35) slides through the surface of the sliding rod (61).

5. The ultrasonic pressure adjustment device using a strain gauge according to claim 1, characterized in that: The movable mechanism (2) comprises a movable rod (21) and a universal block (22); the movable rod (21) is mounted on the surface of a mounting column (9); the universal block (22) connects the movable rod (21) to a base (1) and the mounting column (9); and a contact assembly (7) is provided on the surface of the movable rod (21).

6. The ultrasonic pressure adjustment device using a strain gauge according to claim 5, characterized in that: The contact assembly (7) comprises a contact ring (71) and a pneumatic block (72); the pneumatic block (72) is fixed on the surface of the movable rod (21); and the contact ring (71) is installed on the surface of the movable rod (21).

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