Ultrasonic probe fixing instrument based on PICC (Peripherally Inserted Central Catheter) guide needle puncture and application method thereof

Abstract

The invention relates to an ultrasonic probe fixing instrument based on PICC (Peripherally Inserted Central Catheter) guide needle puncture and an application method of the ultrasonic probe fixing instrument. The adsorption assembly is arranged at the bottom of the moving frame, is of a telescopic structure and is used for being adsorbed and fixed to the ground. The movable supporting assembly is connected to the top of the movable frame and is configured to be capable of adjusting the height and angle in multiple directions. The mounting base is connected to the tail end of the movable supporting assembly through a deformation hose, and the mounting base is connected with a first clamping component and a second clamping component; the adjusting assembly is arranged on the mounting base and matched with the first clamping component and the second clamping component, and the control switch is matched with the adjusting assembly. The adjusting assembly synchronously controls locking and releasing of the first clamping component and the second clamping component, meanwhile, the state of the adsorption assembly and the state of the movable supporting assembly are linked through the control switch, integrated operation of ultrasonic probe clamping and fixing and instrument position adjusting is achieved, the process is simplified, and the operation steps of medical staff are reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of probe fixing support, more particularly to an ultrasonic probe fixing device based on PICC guide needle puncture and an application method thereof. BACKGROUND

[0002] The application of ultrasound guidance technology in the medical field is becoming more and more widespread, especially in the scenes of PICC (peripheral intravenous catheterization) guide needle puncture, blood vessel positioning, regional nerve block and perioperative cardiac function monitoring, the stable fixation of the ultrasonic probe is the key prerequisite to ensure the accuracy and safety of the operation. The operation method of ultrasonic guidance for indwelling needle venipuncture is mainly to hold the ultrasonic probe with one hand and perform indwelling needle puncture operation with the other hand, and to tighten the skin with one hand during puncture operation. This operation is difficult to perform.

[0003] At present, various support products for fixing ultrasonic probes have appeared in clinical practice, which are designed to replace the traditional manual holding method, reduce the deviation of ultrasonic imaging caused by the fatigue and shaking of medical staff's hands, and thus improve the success rate of puncture and reduce the operation risk. For example, a Chinese patent with the patent number CN219440468U discloses a high-strength ultrasonic treatment ultrasonic probe fixing support, which mainly realizes the clamping of the ultrasonic probe through a fixing clamp. The fixing clamp is connected with an extension rod through a shaped hose, the extension rod is fixed with a connecting rod and a first support rod in sequence through a connecting seat, the first support rod is movably installed in a second support rod, a lifting adjusting mechanism is arranged at the connection between the two, and a fixing structure composed of a first clamping plate, a second clamping plate and a reset clamping mechanism is arranged on the outer side of the second support rod, so as to realize the installation and fixation of the whole support. Among them, the lifting adjusting mechanism is matched with a screw rod, a connecting shaft, a bevel gear pair and a worm gear assembly, so that the first support rod and the probe can be adjusted along the height direction by rotating a crank handle, thereby solving the problem that the traditional support is difficult to adjust the use height. The reset clamping mechanism utilizes the limiting action of the reset spring and the guide plate in the reset cylinder and the reset rod, so that the first clamping plate and the second clamping plate can be clamped and fixed on the bed head or the fixing frame.

[0004] However, when the support is adapted to the specific scene of PICC guide needle puncture, it is fixed on the bed head or the fixing frame by relying on the clamping action of the first clamping plate and the second clamping plate, and the fixing effect completely depends on the structural strength and clamping force of the clamping point. In clinical practice, the materials and sizes of the bed head or the fixing frame are different, and when the surface of the clamping point is uneven or the structure is weak, the clamping is easy to loosen, which causes the support to shift or fall during the puncture operation. In addition, the PICC guide needle puncture needs to maintain the stability of the probe position for a long time, and the clamping type fixation has weak anti-deviation ability when it is disturbed by external force, such as slight movement of the patient or pulling of the cable, which easily causes the ultrasonic probe to shake, affecting the imaging clarity and puncture guiding accuracy. SUMMARY

[0005] The technical problem solved by the present application is to provide an ultrasonic probe fixing device based on PICC guide needle puncture and an application method thereof to solve the above defects of the prior art.

[0006] The technical solution adopted by the present application to solve the technical problem is: An ultrasonic probe fixing device based on PICC guide needle puncture is constructed, comprising: a moving frame; an adsorption assembly arranged at the bottom of the moving frame and having a telescopic structure for adsorbing and fixing to the ground; a movable support assembly connected to the top of the moving frame and configured to be adjustable in height and angle in multiple directions; a mounting seat connected to the end of the movable support assembly through a deformable hose, the mounting seat being connected with a first clamping component for fixing an ultrasonic probe and a second clamping component for fixing a probe cable; an adjusting assembly arranged in the mounting seat and cooperating with the first clamping component and the second clamping component to control clamping locking and release thereof; a control switch cooperating with the adjusting assembly to adjust the adsorption state of the adsorption assembly and the angle locking state of the movable support assembly along with the operation of the adjusting assembly.

[0007] As an improvement of the ultrasonic probe fixing device, the adjusting assembly comprises a rotating shaft mounted in the mounting seat, the rotating shaft being provided with a first transmission component and a second transmission component between the first clamping component and the second clamping component, respectively; the rotating shaft drives the first clamping component and the second clamping component to operate through the first transmission component and the second transmission component.

[0008] As an improvement of the ultrasonic probe fixing device, the first clamping component comprises two clamping plates slidingly arranged in the mounting seat, a reset member being arranged between each of the clamping plates and the mounting seat, the two clamping plates being driven by the adjusting assembly to approach each other for clamping and to move away from each other for releasing.

[0009] As an improvement of the ultrasonic probe fixing device, the first transmission component comprises a movable frame slidingly connected with the mounting seat, each of the clamping plates having a convex shaft, the movable frame having a slanted groove on each side for the convex shaft to be inserted and cooperated, the rotating shaft being provided with a rotating disc, a connecting rod being rotatably connected to the eccentric position of the rotating disc, the connecting rod being rotatably connected with the movable frame at the end thereof.

[0010] As an improvement of the ultrasonic probe fixing device, the second clamping component comprises a belt and an arc-shaped support block through which the probe cable passes, one end of the belt being connected with the arc-shaped support block and the other end passing through the arc-shaped support block and the mounting seat and being connected with the adjusting assembly.

[0011] As an improvement of the ultrasonic probe fixing device, the second transmission component comprises a reel connected with the belt, the belt being tightened and released by rotating the reel; one or more guide wheels are arranged on the mounting seat along the moving path of the belt.

[0012] As an improvement of the ultrasonic probe fixing device, the control switch comprises a rotary switch and a control board, the rotary switch being connected with the rotating shaft, the rotary switch, the movable support assembly and the suction assembly being electrically connected with the control board.

[0013] As an improvement of the ultrasonic probe fixing device, the movable frame is provided with a cavity at the bottom, the suction assembly comprises a suction disc arranged in the cavity and a driver for driving the suction disc to slide out and retract along the cavity.

[0014] As an improvement of the ultrasonic probe fixing device, the movable support assembly comprises a lifting component and a rotating component arranged at the movable end of the lifting component, a linear driving component being connected with the rotating end of the rotating component, and the mounting seat being mounted at the moving end of the linear driving component.

[0015] An application method of an ultrasonic probe fixing device based on PICC guide needle puncture, applied to the ultrasonic probe fixing device, the application method comprising the following steps: S1, moving the ultrasonic probe fixing device to a target position, starting the suction assembly, the suction assembly extending and being fixedly adsorbed to the ground, and moving the mounting seat to the PICC guide needle puncture part of the patient through the movable support assembly; S2, after the ultrasonic probe is sleeved with a sterile cover, the ultrasonic probe is placed in the mounting seat, the adjusting assembly is operated, the first clamping component, the second clamping component and the control switch are synchronously driven to operate, so as to clamp and fix the ultrasonic probe and the probe cable, and the control switch triggers the movable support assembly and the suction assembly to be in a locked state; S3, when the fixing is released, the adjusting assembly is reversely operated, the first clamping component, the second clamping component and the control switch are correspondingly operated, the clamping of the ultrasonic probe and the probe cable is released, and the angle locking state of the movable support assembly and the suction state of the suction assembly are synchronously released; S4, after the suction state of the suction assembly is released and the suction assembly is retracted and reset, the ultrasonic probe fixing device is moved away.

[0016] The beneficial effects of the present application are that the adsorption assembly is fixed to the ground through the telescopic structure, and the angle locking function of the movable support assembly can provide stable base support for the instrument, avoid the shaking of the ultrasound probe caused by the displacement of the instrument during the PICC guide needle puncture process, and ensure the stability of the ultrasound imaging; at the same time, the multi-directional height and angle adjustment function of the movable support assembly, combined with the auxiliary adjustment of the installation seat posture by the deformable hose, can flexibly adapt to the body type, puncture site and operation position of different patients, and meet the diversified PICC guide needle puncture scene requirements.

[0017] In addition, the adjusting assembly synchronously controls the locking and releasing of the first clamping part and the second clamping part, and simultaneously controls the state of the adsorption assembly and the movable support assembly through the control switch, so as to realize the integrated operation of the clamping and fixing of the ultrasound probe and the position adjustment of the instrument itself, simplify the process, and reduce the operation steps of the medical staff. Moreover, the stable fixing of the ultrasound probe is realized through the mechanical structure, replacing the traditional handheld mode, reducing the fatigue and errors caused by manual holding, and improving the accuracy and operation efficiency of the ultrasound guidance in the PICC guide needle puncture process. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the present application will be further described below in conjunction with the drawings and embodiments. The drawings in the following description are only some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creating any creative labor: Figure 1 is a perspective structural schematic view of the ultrasound probe fixing instrument provided by the present application; Figure 2 is one of the partial perspective structural schematic views of the ultrasound probe fixing instrument provided by the present application; Figure 3 is the second partial perspective structural schematic view of the ultrasound probe fixing instrument provided by the present application; Figure 4 is a sectional view of the adjusting assembly of the ultrasound probe fixing instrument provided by the present application; Figure 5 is a sectional view of the installation seat of the ultrasound probe fixing instrument provided by the present application; Figure 6 is one of the partial perspective structural schematic views of the first transmission part of the present application; Figure 7 is the second partial perspective structural schematic view of the first transmission part of the present application; Figure 8 is a structural schematic view of the movable frame and the connecting rod of the present application; Figure 9It is structural schematic view of the ultrasonic probe fixing device suction assembly provided by the application; Figure 10 It is three-dimensional structural schematic view of the lifting component and the rotating component of the application; Figure 11 It is three-dimensional structural schematic view of the rotating component and the linear driving component of the application.

[0019] In the figure: 1, moving frame; 11, cavity; 2, suction assembly; 211, suction disc body; 212, connecting rod; 22, driver; 3, movable support assembly; 31, lifting component; 311, fixed cylinder; 312, movable sleeve; 313, electric push rod; 32, rotating component; 321, bearing seat; 322, rotating shaft; 323, first motor; 33, linear driving component; 331, base; 332, second motor; 333, screw shaft; 334, nut block; 335, guide rail; 34, deformed hose; 4, mounting seat; 5, first clamping component; 51, clamping plate; 52, reset member; 6, second clamping component; 61, belt; 62, arc-shaped support block; 7, adjusting assembly; 71, rotating shaft; 72, first transmission component; 721, movable frame; 722, inclined groove; 723, convex shaft; 724, connecting rod; 73, second transmission component; 731, winding disc; 732, wire guide wheel; 8, control switch; 9, ultrasonic probe. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the embodiments of the application clearer, the following will make a clear and complete description of the technical scheme in the embodiments of the application. Obviously, the described embodiments are part of the embodiments of the application, rather than all the embodiments. Based on the embodiments of the application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the application.

[0021] A PICC guide needle puncture-based ultrasonic probe fixing device, as shown in Figure 1 , Figure 2 and Figure 3 , comprises a moving frame 1; a suction assembly 2 is arranged at the bottom of the moving frame 1 and has a telescopic structure, used for suction fixing with the ground; a movable support assembly 3 is connected to the top of the moving frame 1 and is configured to be adjustable in height and angle in multiple directions; a mounting seat 4 is connected to the end of the movable support assembly 3 through a deformed hose 34, and the mounting seat 4 is connected with a first clamping component 5 for fixing an ultrasonic probe 9 and a second clamping component 6 for fixing a probe cable; an adjusting assembly 7 is arranged on the mounting seat 4 and cooperates with the first clamping component 5 and the second clamping component 6 to control clamping locking and release; a control switch 8 cooperates with the adjusting assembly 7 to adjust the suction state of the suction assembly 2 and the angle locking state of the movable support assembly 3 along with the operation of the adjusting assembly 7.

[0022] Specifically, the mobile frame 1 serves as the bearing base of the entire device, and the adsorption assembly 2 at the bottom thereof is fixed to the ground by a telescopic structure. When the device is moved to the target position, the adsorption assembly 2 is extended and adsorbed to the ground to provide a stable support base for the device and prevent displacement during use. The telescopic design of the adsorption assembly 2 allows it to be retracted in the non-use state, facilitating the movement and storage of the device. The movable support assembly 3 at the top of the mobile frame 1 has the functions of multi-directional height and angle adjustment, and the position of the mounting seat 4 connected at the end can be changed by adjusting the height and angle of the movable support assembly 3. Meanwhile, the mounting seat 4 is connected to the movable support assembly 3 through a deformable hose 34, and the deformable hose 34 can further assist in adjusting the posture of the mounting seat 4, so that the mounting seat 4 can be flexibly close to the PICC guide needle puncture site of the patient, meeting the position requirements of different puncture scenes. The first clamping component 5 on the mounting seat 4 is used to fix the ultrasonic probe 9, and the second clamping component 6 is used to fix the probe cable. The adjustment assembly 7 is arranged on the mounting seat 4 and controls the clamping locking and release of the first and second clamping components 5 and 6 by cooperating with the first and second clamping components 5 and 6. The control switch 8 cooperates with the adjustment assembly 7. When the adjustment assembly 7 is operated, such as driving the first and second clamping components 6 to clamp and fix, the control switch 8 synchronously adjusts the adsorption state of the adsorption assembly 2 and the angle locking state of the movable support assembly 3, so that the adsorption assembly 2 maintains adsorption fixation, and the movable support assembly 3 is locked to maintain the current angle, realizing the linkage operation of the clamping and fixation of the ultrasonic probe 9 and the fixation of the device base, and ensuring the operation consistency. In addition, since the ultrasonic probe 9 and its cable are both sleeved with sterile covers, the fixation of the probe cable by the second clamping component 6 can not only avoid the cable pulling leading to the deviation of the ultrasonic probe 9, but also clamp and seal the opening direction of the sterile cover.

[0023] The adsorption assembly 2 of the present application is fixed to the ground by a telescopic structure, and in combination with the angle locking function of the movable support assembly 3, can provide a stable base support for the device, avoid the shaking of the ultrasonic probe 9 caused by the displacement of the device during the PICC guide needle puncture process, and ensure the stability of ultrasonic imaging. The multi-directional height and angle adjustment function of the movable support assembly 3, in cooperation with the auxiliary adjustment of the posture of the mounting seat 4 by the deformable hose 34, can flexibly adapt to the body type, puncture site and operation position of different patients, meeting the diversified PICC guide needle puncture scene requirements. The adjustment assembly 7 synchronously controls the locking and release of the first and second clamping components 5 and 6, and simultaneously links the states of the adsorption assembly 2 and the movable support assembly 3 through the control switch 8, realizing the synchronous operation of the clamping and fixation of the ultrasonic probe 9 and the position adjustment of the device itself, simplifying the process and reducing the operation steps of medical staff. The stable fixation of the ultrasonic probe 9 is realized by the mechanical structure, replacing the traditional handheld mode, reducing the fatigue and errors caused by manual holding, and improving the accuracy and operation efficiency of ultrasonic guidance during the PICC guide needle puncture process.

[0024] In some embodiments of the present application, as shown in Figure 4 The adjusting assembly 7 includes a rotating shaft 71 mounted on the mounting seat 4, and first and second transmission components 72 and 73 are respectively arranged between the rotating shaft 71 and the first and second clamping components 5 and 6. The rotating shaft 71 drives the first and second clamping components 5 and 6 to operate through the first and second transmission components 72 and 73. Specifically, the rotating shaft 71 realizes power transmission through the first and second transmission components 72 and 73 connected with the first and second clamping components 5 and 6, respectively. When the rotating shaft 71 moves, such as rotates, power is transmitted to the first clamping component 5 through the first transmission component 72 to drive the first clamping component 5 to operate, and at the same time, power is transmitted to the second clamping component 6 through the second transmission component 73 to drive the second clamping component 6 to operate. That is, through the movement of a single rotating shaft 71, the first and second clamping components 5 and 6 are driven synchronously to complete the corresponding clamping locking or releasing operation by means of two independent transmission components. This avoids the instability caused by the asynchronous operation of the two components, such as the probe is fixed but the cable is loose, ensures that the fixing state of the ultrasonic probe 9 and the probe cable is consistent, and improves the operation reliability. The medical staff only needs to operate the rotating shaft 71 to control the two clamping components at the same time, which reduces the steps of independent operation of the two components, reduces the operation difficulty, and improves the use efficiency of the fixing instrument in the PICC guide needle puncture process.

[0025] It should be noted that the rotating shaft 322 can be limited by its own limiting locking function after rotating to the preset angle position, and the limiting locking structure can be a positioning pin cooperating with an angle positioning hole, a cam pawl positioning mechanism, or other mechanical limiting locking structures. The crane cam pawl positioning mechanism is that a ring array of positioning holes is arranged on the end face or outer periphery of the rotating shaft 322, and each hole corresponds to a preset angle, such as 0°, 90°, and 180°. A spring positioning pin is arranged on the bearing seat 321 of the mounting seat 4 or the rotating component 32, that is, the tail end of the pin body is provided with a hemispherical protrusion, and the tail end is connected with the base 331 through a spring. When the rotating shaft 322 rotates, the hemispherical protrusion of the positioning pin slides on the surface of the rotating shaft 322, and the spring is compressed. When the rotating shaft 322 rotates to the preset angle, the positioning pin automatically pops out under the elastic force of the spring and is inserted into the corresponding positioning hole, so that mechanical limiting locking is realized. The operator can perceive that the locking is in place through the “click” sound. When the locking is released, the tail end of the positioning pin is manually pressed to make the pin body separate from the positioning hole, so that the rotating shaft 322 can be reversely rotated.

[0026] In some embodiments of the present application, as shown in Figure 5As shown, the first clamping component 5 comprises two clamping plates 51 slidingly arranged on the mounting base 4, and a reset member 52 is arranged between each clamping plate 51 and the mounting base 4. The two clamping plates 51 are driven to approach each other for clamping and to move away from each other for releasing by the adjusting assembly 7. Specifically, the reset member 52 can be a spring or an elastic sheet, and the two clamping plates 51 can relatively approach or move away along the mounting base 4. When the adjusting assembly 7 operates, such as driving the clamping plates 51 by power transmission, the two clamping plates 51 approach each other against the force of the reset member 52, thereby clamping and fixing the ultrasonic probe 9. When the adjusting assembly 7 is released, the force of the reset member 52 drives the two clamping plates 51 to move away from each other, thereby releasing the clamping of the ultrasonic probe 9 and achieving the releasing action. That is, the adjusting assembly 7 provides clamping power, and the reset member 52 provides releasing power, and the two components cooperate to control the opening and closing states of the clamping plates 51.

[0027] The clamping plates 51 are driven to approach for clamping by the adjusting assembly 7 and are driven to move away for releasing by the reset member 52, without the need for additional manual operation of the releasing action. The clamping and releasing are automatically connected, thereby improving the operation efficiency in the PICC needle puncture process.

[0028] In some embodiments of the present application, as shown in Figure 6 Figure 7 and Figure 8 , the first transmission component 72 comprises a movable frame 721 slidingly connected with the mounting base 4, and each clamping plate 51 has a protruding shaft 723. The movable frame 721 has inclined grooves 722 on both sides for inserting and cooperating with the protruding shafts 723. The rotating shaft 71 is provided with a rotating disc, and the eccentric position of the rotating disc is rotatably connected with a connecting rod 724. The end of the connecting rod 724 is rotatably connected with the movable frame 721. Specifically, when the rotating shaft 71 drives the rotating disc to rotate, the rotating motion of the rotating disc is converted into the reciprocating swing of the connecting rod 724, that is, the eccentric position makes a circular motion with the rotation of the rotating disc, thereby driving the end of the connecting rod 724 to produce reciprocating displacement in a straight line. The end of the connecting rod 724 is rotatably connected with the movable frame 721, thereby driving the movable frame 721 to slide. The inclined grooves 722 on both sides of the movable frame 721 cooperate with the protruding shafts 723 of the clamping plates 51. When the movable frame 721 slides, the inclined structure of the inclined grooves 722 generates a lateral force on the protruding shafts 723, thereby forcing the two clamping plates 51 to approach or move away along the inclined grooves 722 along with the protruding shafts 723. That is, by the sliding motion of the movable frame 721, the two clamping plates 51 approach each other for clamping or move away from each other for releasing.

[0029] ​The rotating motion of the rotating shaft 71 is converted into the sliding motion of the movable frame 721 through the rotating disc and the connecting rod 724, and then converted into the opening and closing motion of the clamping plate 51 through the cooperation of the chute 722 and the convex shaft 723, so that the stable transmission of different motion forms is realized, and the efficient conduction of power from the rotating shaft 71 to the clamping plate 51 is ensured. The convex shafts 723 of the two clamping plates 51 are respectively embedded in the chutes 722 on both sides of the movable frame 721. When the movable frame 721 slides, the forces of the chutes 722 on the convex shafts 723 are synchronous and symmetrical, which can ensure that the two clamping plates 51 always act synchronously, ensure that the clamping force on the ultrasonic probe 9 is uniform, and avoid the probe deviation caused by asymmetric clamping.

[0030] In some embodiments of the present application, the second clamping component 6 includes a belt 61 and an arc-shaped support block 62 through which the probe cable passes. One end of the belt 61 is connected to the arc-shaped support block 62, and the other end passes through the arc-shaped support block 62 and the mounting seat 4 and is connected to the adjusting assembly 7. Specifically, the probe cable passes through the arc-shaped support block 62, and the arc-shaped support block 62 provides a support base that fits the shape of the cable. One end of the belt 61 is connected to the arc-shaped support block 62, and the other end passes through the arc-shaped support block 62 and the mounting seat 4 and is connected to the adjusting assembly 7. When the adjusting assembly 7 operates, such as tightening the belt 61, the belt 61 shortens under the drive of the adjusting assembly 7, pressing the probe cable against the arc-shaped support block 62 to fix the cable. When the adjusting assembly 7 operates in reverse, such as loosening the belt 61, the tension of the belt 61 is released, releasing the pressure on the cable to release the cable.

[0031] The arc-shaped structure of the arc-shaped support block 62 fits the cylindrical shape of the probe cable, and cooperates with the tightening action of the belt 61 to stably wrap cables of different diameters, ensuring the fixing effect while avoiding damage to the cable due to excessive local stress. The belt 61 is directly connected to the adjusting assembly 7, and the tightening and release of the belt 61 can be realized through the unified operation of the adjusting assembly 7, which is linked with the action of the first clamping component 5, eliminating the need for separate operation of the cable fixing structure and simplifying the overall operation process.

[0032] In some embodiments of the present application, the second transmission component 73 includes a winding disc 731 connected with the belt 61, the belt 61 is tightened and released by rotating the winding disc 731; one or more guide wheels 732 are arranged on the mounting seat 4 along the moving path of the belt 61. Specifically, the winding disc 731 is connected with the belt 61, when the winding disc 731 rotates, the belt 61 is wound on the winding disc 731 to achieve tightening, or unwound from the winding disc 731 to achieve release, thereby driving the second clamping component 6 to complete the fixing or releasing of the probe cable through the belt 61. One or more guide wheels 732 are arranged on the mounting seat 4 along the moving path of the belt 61, which guides the moving direction of the belt 61, ensures the stable movement of the belt 61 along the preset path during the tightening or releasing process, and avoids the deviation or winding of the belt 61.

[0033] The winding disc 731 realizes the tightening and release of the belt 61 through the rotating action, can accurately control the length change of the belt 61, thereby accurately adjusting the clamping force of the probe cable, ensuring reliable fixing and avoiding damage to the cable caused by excessive tightening. The guide wheel 732 is arranged along the moving path of the belt 61, which can constrain the motion trajectory of the belt 61, reduce the shaking, deviation or friction with other components of the belt 61 during the movement, ensure smooth transmission of the belt 61, and prolong the service life of the belt 61.

[0034] In some embodiments of the present application, the control switch 8 includes a rotary switch and a control board, the rotary switch is connected and matched with the rotating shaft 71, and the rotary switch, the movable support assembly 3 and the adsorption assembly 2 are electrically connected with the control board. Specifically, the rotary switch is connected and matched with the rotating shaft 71, when the rotating shaft 71 rotates, the rotary switch synchronously acts and transmits the electrical signal to the control board; the control board is electrically connected with the movable support assembly 3 and the adsorption assembly 2 respectively, after receiving the electrical signal of the rotary switch, controls the angle locking state of the movable support assembly 3 and the adsorption state of the adsorption assembly 2. That is, the rotary switch is driven by the rotating shaft 71, and the state control of the movable support assembly 3 and the adsorption assembly 2 is realized through the signal processing and transmission of the control board. The rotary switch is directly connected with the rotating shaft 71, which can convert the action of the rotating shaft 71 into an electrical signal in real time, synchronously control the state of the movable support assembly 3 and the adsorption assembly 2 through the control board, realize the fixing of the ultrasonic probe 9 at the same time, automatically lock the position of the mounting seat 4, ensure the coordinated action of each component, and do not need to separately operate multiple control components.

[0035] Further, the rotary switch can be selected according to requirements, such as a micro-rotary switch, an encoded rotary switch or a self-resetting rotary switch. The micro-rotary switch has the characteristics of sensitive action and reliable contact. When the rotating shaft 71 rotates to drive the rotary switch to act, the micro-rotary switch can quickly change the contact state and transmit accurate electrical signals to the control board. In the ultrasonic probe 9 fixing device, when the medical staff operates the adjusting assembly 7 to rotate the rotating shaft 71, the micro-rotary switch can quickly respond to convert the rotation action into an electrical signal to the control board, timely control the state of the movable support assembly 3 and the adsorption assembly 2, ensure the timeliness and accuracy of the action of each component, and meet the rapid switching requirements of the ultrasonic probe 9 fixing and the overall locking state of the device. The encoded rotary switch can accurately measure the rotation angle and direction and output a digital encoded signal. In the device, when the medical staff operates the adjusting assembly 7 to rotate the rotating shaft 71, the encoded rotary switch can accurately detect the rotation angle and direction of the rotating shaft 71 and convert it into a digital signal to the control board. The control board accurately controls the angle locking of the movable support assembly 3 and the adsorption state of the adsorption assembly 2 according to these accurate encoded signals, so that the device can achieve accurate positioning and stable fixation in different use scenarios, and improve the accuracy of operation. In addition, the self-resetting rotary switch can automatically return to the initial position after the operating force is removed. In the use of the device, the medical staff operates the adjusting assembly 7 to rotate the rotating shaft 71 to drive the self-resetting rotary switch to act, controls the clamping of the ultrasonic probe 9 and the cable, and locks the device; after the operation is completed, the rotary switch automatically resets to avoid changing the state of the device due to misoperation. In the process of ultrasound-guided puncture, if the medical staff accidentally touches the rotating shaft 71 again, the self-resetting rotary switch has been automatically reset, which can prevent accidental triggering of the fixing or changing of the state of the device, and ensure the safety and stability of the operation.

[0036] It should be understood that the rotation sensing structure of the control switch 8 can be provided with a transmission structure to cooperate with the rotation of the rotating shaft 322 according to requirements, such as a gear transmission structure, to connect the rotation sensing structure of the control switch 8 with the rotating shaft 322. Figure 4 The control switch 8 in the above embodiment is only a schematic diagram to reflect the installation position of the control switch 8 and the connection relationship with the rotating shaft 322.

[0037] In some embodiments of the present application, as shown in Figure 9As shown, the mobile frame 1 is provided with a cavity 11 at the bottom, and the suction assembly 2 includes a suction cup arranged in the cavity 11 and a driver 22 for driving the suction cup to slide out and retract along the cavity 11. Specifically, the structure of the driver 22 includes but is not limited to an electric push rod 313 or a pneumatic cylinder, and a corresponding driving element can be selected according to requirements. When the instrument needs to be fixed, the driver 22 drives the suction cup in the cavity 11 to slide out along the cavity 11, the suction cup contacts the ground and operates to generate suction force, thereby realizing the fixation of the mobile frame 1 to the ground. When it is needed to release the fixed state or move the instrument, the suction cup is first released from the suction state to the ground, and then the driver 22 drives the suction cup to slide and retract along the cavity 11, so that the suction cup is separated from the ground and is stored back into the cavity 11. The stability of the instrument during use is ensured: through the suction of the suction cup to the ground, a stable support can be provided for the entire instrument, preventing the position stability of the ultrasonic probe 9 from being affected due to the displacement of the instrument during the PICC needle puncture, and ensuring the accuracy of ultrasonic imaging. At the same time, it is also convenient for the movement and storage of the instrument: in the non-use state, the suction cup can be retracted into the cavity 11 at the bottom of the mobile frame 1 through the driver 22, which reduces the occupied space of the instrument, avoids unnecessary contact and damage of the suction cup with other objects, and facilitates the movement and storage of the instrument. Flexible switching between fixation and movement is realized: through the control of the driver 22 on the extension and retraction of the suction cup, the instrument can be quickly switched between the fixed working state and the movable state, meeting the demand for position adjustment of the instrument during the PICC needle puncture operation.

[0038] Further, the suction cup includes a suction cup body 211 connected with the output end of the driver 22 through a rigid connecting rod 212, the connecting rod 212 is sleeved with a guide sleeve, and the guide sleeve is slidingly fitted with the inner wall of the cavity 11 at the bottom of the mobile frame 1, so as to ensure the stable extension and retraction of the suction cup along the cavity 11 in the axial direction. A one-way valve is arranged at the connecting position of the suction cup and the connecting rod 212, the air inlet end of the one-way valve is communicated with the inside of the suction cup, the air outlet end is communicated with the outside, and the one-way valve can prevent air backflow to maintain negative pressure. A micro exhaust hole is arranged on the side surface of the suction cup for balancing the air pressure when the suction is released. The driver 22 drives the suction cup to slide out along the cavity 11, the suction cup contacts the ground, the sealing lip closely contacts the ground, and the negative pressure is formed after the internal air is exhausted, the one-way valve is closed to maintain the negative pressure, and the suction fixation of the mobile frame 1 to the ground is realized. When it is needed to release the fixed state, the exhaust hole is opened, the air outside enters the inside of the suction cup to balance the air pressure, and the suction is released. The driver 22 drives the suction cup to slide and retract along the cavity 11 and is stored back into the cavity 11, which is convenient for the movement of the instrument.

[0039] In some embodiments of the present application, as shown in FIG. 6, Figure 10 and Figure 11As shown, the movable support assembly 3 comprises a lifting component 31 and a rotating component 32 arranged at the movable end of the lifting component 31, and a linear driving component 33 connected at the rotating end of the rotating component 32, and the mounting seat 4 is mounted at the moving end of the linear driving component 33. Specifically, the lifting component 31 can adjust the height of the movable end thereof, and in turn change the height of the rotating component 32 connected at the movable end of the lifting component 31, so as to realize the adjustment of the overall support height; the rotating component 32 can rotate around the axis thereof, and the linear driving component 33 connected at the rotating end of the rotating component 32 will change the direction with the rotation of the rotating component 32, so as to adjust the orientation of the linear driving component 33; the moving end of the linear driving component 33 can move in a linear direction, and since the mounting seat 4 is mounted on the moving end, the movement of the moving end of the linear driving component 33 will drive the mounting seat 4 to move synchronously, so as to realize the position adjustment of the mounting seat 4 in the linear direction. Through the cooperative operation of the lifting component 31, the rotating component 32 and the linear driving component 33, the movable support assembly 3 can adjust the position of the mounting seat 4 from three dimensions of height, direction and linear position, and the cooperation of the three can make the mounting seat 4 flexibly reach the target position close to the PICC needle puncture site of the patient, so as to meet the precise requirements of the position of the mounting seat 4 under different patient body types, puncture sites and operation positions.

[0040] Further, the lifting component 31 comprises a fixed cylinder 311 vertically arranged on the moving frame 1 and a movable sleeve 312 sleeved outside the fixed cylinder 311, the inside of the fixed cylinder 311 is provided with an electric push rod 313, the fixed end of the electric push rod 313 is connected with the bottom of the fixed cylinder 311, the telescopic end is connected with the movable sleeve 312, so as to drive the movable sleeve 312 to move along the axial direction of the fixed cylinder 311 to lift. After the electric push rod 313 is started, the telescopic end is elongated or shortened, driving the movable sleeve 312 to slide up and down along the fixed cylinder 311, so as to realize the height adjustment of the movable end of the lifting component 31. The rotating component 32 comprises a bearing seat 321 arranged on the top of the movable sleeve 312 and a rotating shaft 322 installed on the bearing seat 321, the lower end of the rotating shaft 322 is connected with a first motor 323, and the upper end of the rotating shaft 322 is used for being connected with the linear driving component 33. When the control switch 8 is adjusted through the linkage of the adjusting assembly 7 to trigger the control board, the control board controls the electromagnetic brake to be powered on, the electromagnetic brake is locked to the rotating shaft 322 to realize angle locking; when the adjusting assembly 7 is reversely operated, the control switch 8 links the control board, and the electromagnetic brake is powered off to be unlocked. The linear driving component 33 comprises a base 331, a second motor 332 arranged on the base 331, a screw shaft 333, a nut block 334 threadedly matched with the screw shaft 333 and a guide rail 335, the screw shaft 333 is in transmission connection with the second motor 332, the nut block 334 is in sliding fit with the guide rail 335, and the nut block 334 is connected with the mounting seat 4 through the deformable hose 34. When it is necessary to adjust the linear position of the mounting seat 4, the second motor 332 is controlled to be started, the output shaft of the second motor 332 drives the screw shaft 333 to rotate; when the screw shaft 333 rotates, the nut block 334 engaged with the screw shaft 333 moves linearly along the axial direction of the screw shaft 333; under the constraint of the guide rail, the nut block 334 moves stably along the straight line, and simultaneously drives the mounting seat 4 to move synchronously; when the mounting seat 4 is moved to the target position, the second motor 332 is stopped, and the electric push rod 313, the first motor 323 and the second motor 332 are matched with the control switch 8, so as to be triggered by the control switch 8 to enter the self-locking state, so as to lock the current position and prevent displacement deviation caused by external force.

[0041] It should be understood that the above is only one driving structure selected by the lifting component 31, the rotating component 32 and the linear driving component 33, and the structures of the three can select driving structures with higher cost performance or higher quality according to needs, such as existing mechanical arms or three-axis linkage structures. The purpose of the present application is to improve the existing ultrasonic probe 9 fixing support, specifically, the whole instrument is fixed to the ground through the setting of the adsorption assembly 2 to improve the stability, and through the cooperation of the first and second clamping components 6, the adjusting assembly 7 and the control switch 8, the ultrasonic probe 9 and the probe cable are clamped and fixed at the same time, and the active support assembly 3 and the adsorption assembly 2 are triggered to enter the self-locking state synchronously through the control switch 8, so as to fix the position of the mounting seat 4, and then the position of the ultrasonic probe 9 is finely adjusted through the deformable hose 34.

[0042] In order to further ensure the sterile environment during the PICC needle puncture process and avoid cross infection, a sterile cover can be provided on the clamping end of the first clamping component 5 and the second clamping component 6 (i.e. the clamping plate 51, the mounting seat 4, the belt 61 and the arc-shaped supporting block 62). The sterile cover can be a conventional medical sterile cover or a special sterile cover designed in combination with the fixing device. The material and structure of the sterile cover meet the medical sterile standards. In use, the sterile cover is properly provided on the clamping end of the first and second clamping components, and then the ultrasonic probe is installed and fixed. This design not only maintains the sterile state of the probe itself, but also avoids direct contact of the clamping components with the sterile area, thereby double guaranteeing the sterile requirement of the operation area and effectively reducing the risk of infection.

[0043] An application method of an ultrasonic probe 9 fixing device based on PICC needle puncture, applied to the ultrasonic probe 9 fixing device, and comprising the following steps: S1, moving the ultrasonic probe 9 fixing device to a target position, starting the adsorption assembly 2, extending the adsorption assembly 2 and adsorbing and fixing to the ground, moving the mounting seat 4 to the PICC needle puncture site of the patient through the movable supporting assembly 3, and completing the preliminary positioning of the device; S2, after the ultrasonic probe 9 is covered with a sterile cover, it is placed in the mounting seat 4, the adjusting assembly 7 is operated, the first clamping component 5, the second clamping component 6 and the control switch 8 are synchronously driven to operate, so as to clamp and fix the ultrasonic probe 9 and the probe cable, and the control switch 8 triggers the movable supporting assembly 3 and the adsorption assembly 2 to be in a locked state; S3, when the fixing is released, the adjusting assembly 7 is operated in reverse, the first clamping component 5, the second clamping component 6 and the control switch 8 are correspondingly operated, the clamping of the ultrasonic probe 9 and the probe cable is released, and the angle locking state of the movable supporting assembly 3 and the adsorption state of the adsorption assembly 2 are synchronously released; S4, after the adsorption assembly 2 is controlled to release the adsorption state and is retracted and reset, the ultrasonic probe 9 fixing device can be moved away; the whole process is completed.

[0044] Specifically, in step S2, the cooperation of the adjusting assembly 7 and the control switch 8 realizes the synchronous operation of the fixing of the ultrasonic probe 9, the cable and the movable support assembly 3, and the locking of the adsorption assembly 2, ensures that the instrument is in a stable state as a whole during the puncture process, avoids the displacement of the probe caused by the inconsistent state of the components, and improves the accuracy of ultrasonic guidance; at the same time, in step S2, the ultrasonic probe 9 is placed in the mounting seat 4 after being sleeved with a sterile sleeve, which meets the sterile requirement of medical operation, reduces the risk of patient infection, and ensures the safety of operation. In addition, in step S3, all the fixing and locking states can be released synchronously by reversing the operation of the adjusting assembly 7, without the need to operate multiple components respectively, which simplifies the process of releasing the fixing, saves the operation time, and improves the efficiency of the end of the PICC guide needle puncture. Finally, in step S4, the instrument can be easily moved away after the adsorption assembly 2 is retracted, combined with the convenient positioning in step S1, the movement of the instrument before and after use is more flexible, which adapts to the demand for adjustment of the position of the instrument in different operation scenes, and enhances the practicability of the instrument.

[0045] It should be understood that, for those skilled in the art, improvements or changes can be made according to the above description, and all these improvements and changes shall belong to the protection scope of the appended claims of the present application.

Claims

1. An ultrasound probe fixing apparatus based on PICC needle puncture, characterized in that, The application relates to a mobile ultrasonic probe fixing device. The mobile frame comprises: An adsorption assembly arranged at the bottom of the mobile frame and having a telescopic structure, used for adsorbing and fixing to the ground; A movable support assembly connected to the top of the mobile frame and configured to be adjustable in height and angle in multiple directions; A mounting seat connected to the end of the movable support assembly through a deformable hose, the mounting seat being connected with a first clamping component for fixing an ultrasonic probe and a second clamping component for fixing a probe cable; An adjusting assembly arranged in the mounting seat and cooperating with the first clamping component and the second clamping component to control clamping locking and releasing thereof; A control switch cooperating with the adjusting assembly to adjust the adsorption state of the adsorption assembly and the angle locking state of the movable support assembly along with the operation of the adjusting assembly.

2. The ultrasound probe fixation device based on PICC guide needle puncture according to claim 1, characterized in that, The adjusting assembly comprises a rotating shaft arranged in the mounting seat, the rotating shaft being provided with a first transmission component and a second transmission component between the first clamping component and the second clamping component respectively; the rotating shaft drives the first clamping component and the second clamping component to operate through the first transmission component and the second transmission component.

3. The ultrasound probe fixation apparatus based on PICC guide needle puncture according to claim 2, characterized in that, The first clamping component comprises two clamping plates slidingly arranged in the mounting seat, the clamping plates being provided with return members between the clamping plates and the mounting seat; the two clamping plates are driven by the adjusting assembly to approach each other for clamping and to move away from each other for releasing.

4. The ultrasound probe fixation apparatus based on PICC guide needle puncture according to claim 3, characterized in that, The first transmission component comprises a movable frame slidingly connected with the mounting seat, the clamping plates each having a convex shaft, the movable frame on both sides each having an inclined groove for inserting and cooperating with the convex shaft, the rotating shaft being provided with a rotating disc, the eccentric position of the rotating disc being rotatably connected with a connecting rod, the connecting rod being rotatably connected with the movable frame at the end of the connecting rod.

5. The ultrasound probe fixation device based on PICC guide needle puncture according to claim 2, characterized in that, The second clamping component comprises a belt and an arc-shaped supporting block through which the probe cable passes, one end of the belt being connected with the arc-shaped supporting block, the other end of the belt passing through the arc-shaped supporting block and the mounting seat and being connected with the adjusting assembly.

6. The ultrasound probe fixation device based on PICC guide needle puncture according to claim 5, characterized in that, The second transmission component comprises a winding disc connected with the belt, the belt being tightened and released by rotating the winding disc; one or more wire guide wheels are arranged on the mounting seat along the movement path of the belt.

7. The ultrasound probe fixation device based on PICC guide needle puncture according to claim 2, characterized in that, The control switch comprises a rotary switch and a control panel, the rotary switch being connected and cooperating with the rotating shaft, the rotary switch, the movable support assembly and the adsorption assembly being electrically connected with the control panel.

8. The ultrasound probe fixation apparatus based on PICC guide needle puncture according to any one of claims 1-7, characterized in that, The bottom of the mobile frame is provided with a cavity, the adsorption assembly comprising a suction disc arranged in the cavity and a driver for driving the suction disc to slide out of and retract into the cavity.

9. The ultrasound probe fixation device based on PICC guide needle puncture according to claim 8, characterized in that, The movable support assembly comprises a lifting component and a rotating component arranged at the movable end of the lifting component, the rotating end of the rotating component being connected with a linear driving component, the mounting seat being arranged at the movable end of the linear driving component.

10. An application method of an ultrasound probe fixing instrument based on PICC guide needle puncture, applied to the ultrasound probe fixing instrument according to any one of claims 1-9, characterized in that, The application method comprises the following steps: S1, moving an ultrasonic probe fixing device to a target position, starting the adsorption assembly, the adsorption assembly extending out and adsorbing and fixing to the ground, and moving the mounting seat to the PICC guide needle puncture part of a patient through the movable support assembly; S2, after the ultrasonic probe is sleeved with the sterile cover, the ultrasonic probe is placed in the mounting seat, the adjusting assembly is operated, the first clamping component, the second clamping component and the control switch are synchronously driven to operate, so that the ultrasonic probe and the probe cable are clamped and fixed, and the control switch triggers the driving of the movable support assembly and the adsorption assembly to be in the locked state; S3, when the fixing is released, the adjusting assembly is reversely operated, the first clamping component, the second clamping component and the control switch operate correspondingly, the clamping of the ultrasonic probe and the probe cable is released, and the angle locking state of the movable support assembly and the adsorption state of the adsorption assembly are synchronously released; S4, after the adsorption assembly is controlled to release the adsorption state and retract and reset, the ultrasonic probe fixing device can be removed.

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