An auxiliary positioning device for vascular intervention puncture

Abstract

The present invention relates to the technical field of auxiliary positioning devices for puncture, and specifically relates to an auxiliary positioning device for vascular interventional puncture, which includes a carrier vehicle. A movable moving platform is installed on the carrier vehicle. A multi-axis driving platform is installed on the moving platform. A positioning arm with adjustable spatial position and spatial angle is connected to the multi-axis driving platform. A first linear driving module is installed on the positioning arm. A feed table is drivingly installed on the first linear driving module. A puncture needle tube is installed on the feed table. The beneficial effects of the present invention are as follows: Through the realization of the adjustable effects of the spatial layout position and spatial layout angle of the positioning arm, multi-directional puncture operations during the vascular interventional puncture process are achieved. During the vascular interventional puncture, an ultrasonic imaging probe performs real-time ultrasonic imaging on the puncture needle tube. The data collected by the ultrasonic imaging probe is transmitted to the PC host in real time and imaged in the PC host.

Description

Technical Field

[0001] The present invention relates to the technical field of auxiliary positioning devices for puncture, and specifically to an auxiliary positioning device for vascular interventional puncture. Background Technique

[0002] Vascular puncture belongs to an invasive clinical operation technique, mainly entering the venous circulation through the peripheral or central vein, especially for monitoring the arterial and venous blood pressures of patients during the rescue of shock and cardiopulmonary resuscitation patients. If the patient's condition is relatively serious, in order to avoid repeated punctures, a vascular puncture procedure can be performed.

[0003] In the prior art, a patent document with the publication number CN118924392A discloses an auxiliary device for peripheral vascular puncture of a patient, including a fixed base, on which a base that can move horizontally relative to it is movably connected. A rotatable support is built into the base. The patient's arm is placed in the support. After binding the arm through an auxiliary binding mechanism, the base can follow three-dimensionally. After the above device fits on the arm, it can move freely synchronously with the arm, achieving real-time and accurate puncture points. However, the following technical problems exist when using the above device:

[0004] 1. It is not convenient to perform multi-directional puncture operations during vascular interventional puncture;

[0005] 2. During vascular interventional puncture, it is not convenient to perform real-time ultrasonic imaging on the puncture needle tube through an ultrasonic imaging probe;

[0006] 3. It is not convenient to improve the blood sample sampling rate during puncture through positive pressure and maintain a low bacterial level before and during the use of the puncture needle tube;

[0007] Based on this, the present invention provides an auxiliary positioning device for vascular interventional puncture to solve the problems raised in the above background technique. Summary of the Invention

[0008] In view of the technical problems existing in the prior art, the present invention provides an auxiliary positioning device for vascular interventional puncture to solve the problems that the existing device is not convenient to perform multi-directional puncture operations during vascular interventional puncture and it is not convenient to perform real-time ultrasonic imaging on the puncture needle tube through an ultrasonic imaging probe during vascular interventional puncture.

[0009] The technical solution of the present invention to solve the above technical problems is as follows: An auxiliary positioning device for vascular interventional puncture, including a carrier vehicle, on which a movable moving platform is installed, a multi-axis driving platform is installed on the moving platform, a positioning arm with adjustable spatial position and spatial angle is connected to the multi-axis driving platform, a first linear driving module is installed on the positioning arm, a feed table is drivingly installed on the first linear driving module, a puncture needle tube is installed on the feed table, a positive pressure positioning cylinder slidably connected to the feed table is sleeved outside the feed table, a corrugated tube is installed between the positive pressure positioning cylinder and the feed table, a positive pressure chamber is provided inside the corrugated tube, a spring is sleeved on the corrugated tube at the position corresponding to between the positive pressure positioning cylinder and the feed table, a sealing ring bladder is installed on the inner wall of the feed table, a sterilization air inlet mechanism is installed on the carrier vehicle, and the positive pressure chamber and the inner cavity of the sealing ring bladder are both communicated with the sterilization air inlet mechanism. A flipping arm driven by a flipping motor is rotatably installed on the positioning arm, and an ultrasonic imaging probe capable of moving in two axes is installed on the flipping arm;

[0010] A liftable pressing frame is installed on the carrier vehicle, a winding mechanism and a distance adjusting module are installed on the pressing frame, two symmetrically arranged binding straps are drivingly connected to the winding mechanism, two spacing-adjustable binding pliers are drivingly installed on the distance adjusting module, a limiting rubber wheel is rotatably installed on the inner wall of each of the binding pliers corresponding to the inner walls of the two binding straps, and a profiling pressing module cooperating with the binding straps is installed in the middle of the pressing frame.

[0011] On the basis of the above technical solution, the present invention can be further improved as follows.

[0012] Further, a PC host is installed on the surface of the carrier vehicle, the data end of the ultrasonic imaging probe is data-connected to the PC host, an electric control box electrically connected to the PC host is installed on the carrier vehicle, a set of casters is installed on the bottom surface of the carrier vehicle, and a second linear transmission module is installed on the carrier vehicle and is drivingly connected to the moving platform.

[0013] The beneficial effect of adopting the above further solution is that when performing vascular interventional puncture, the ultrasonic imaging probe performs real-time ultrasonic imaging on the puncture needle tube, the data collected by the ultrasonic imaging probe is transmitted to the PC host in real time and imaged in the PC host. Through the real-time imaging of the ultrasonic imaging probe, the puncture state of the puncture needle tube and the feeding position of the puncture needle tube can be accurately judged.

[0014] Further, the multi-axis driving platform includes an electric rotator installed on the moving table. A rotating plate is installed on the rotating surface of the electric rotator. A first rocker arm is hinged to the surface of the rotating plate. The end of the first rocker arm is hinged to a second rocker arm. The second rocker arm is hinged to the positioning arm. A set of electric push rods are hinged between the rotating plate and the first rocker arm, between the second rocker arm and the first rocker arm, and between the positioning arm and the second rocker arm. The axis of rotation of the electric rotator is perpendicular to the axis of the puncture needle tube.

[0015] The beneficial effect of adopting the above further solution is that when performing vascular intervention puncture, through the settings of the second linear transmission module, electric rotator, first rocker arm, second rocker arm, positioning arm and multiple groups of electric push rods, the spatial layout position and spatial layout angle of the positioning arm can be adjusted. By realizing the adjustable effect of the spatial layout position and spatial layout angle of the positioning arm, multi-directional puncture operations during the vascular intervention puncture process can be achieved.

[0016] Further, the sterilization air inlet mechanism includes an alcohol storage tank installed on the moving table. An alcohol storage cavity is fixedly opened inside the alcohol storage tank. A one-way air inlet valve is installed on the alcohol storage tank. The air outlet port of the one-way air inlet valve is immersed in the alcohol storage cavity. A one-way air outlet pipe is connected to the top surface of the alcohol storage tank. A positive pressure pump is installed on the side surface of the alcohol storage tank. The air outlet port of the one-way air outlet pipe is connected to the air inlet port of the positive pressure pump. The air outlet port of the positive pressure pump is connected to a heating sleeve. The air outlet port of the heating sleeve is connected to a ventilation hose. The inner cavity of the sealing ring bag and the positive pressure cavity are both connected to the ventilation hose. A first air pressure probe is installed in the ventilation hose. The data end of the first air pressure probe is connected to the data of the PC host.

[0017] The beneficial effect of adopting the above further solution is that when it is necessary to perform the positive pressure maintenance operation of the positive pressure positioning cylinder, a certain amount of alcohol is stored in the alcohol storage cavity. The height of the alcohol in the alcohol storage cavity should ensure that it submerges the air outlet position of the one-way air inlet valve. Through the alcohol storage setting in the alcohol storage cavity, alcohol disinfection during the air intake process of the one-way air inlet valve is realized. The gas after alcohol disinfection finally enters the action area of the positive pressure pump through the one-way air outlet pipe and is pumped out by the positive pressure pump.

[0018] The gas pumped out by the positive pressure pump ultimately enters the positive pressure cavity. Among them, the gas pumped out by the positive pressure pump is heated by the heating sleeve when flowing through the heating sleeve. Through heating, the comfort of the skin on the outer surface of the human body is improved. At the same time, through the setting of the first air pressure probe, when the blood vessel puncture operation is carried out, the air pressure in the positive pressure positioning cylinder is higher than the internal pressure in the blood vessel. Through the increase in the pressure difference, the overflow rate of blood between the puncture needle tube and the human skin during the puncture process is effectively reduced, thereby reducing the bleeding degree and bleeding rate during the puncture process. At the same time, through the provision of a positive pressure difference, a certain degree of extrusion is applied to the blood vessel. Through extrusion, the blood sample outflow rate during blood vessel puncture sampling is increased, thereby improving the puncture sampling efficiency. And through the setting of the alcohol inflatable wrapping structure, the contamination rate of the puncture needle tube before and during use can be effectively reduced.

[0019] Further, the winding mechanism includes two first double-headed motors installed on the pressing frame. One output shaft end of each first double-headed motor is fixedly installed with a first winding wheel, and the other output shaft end of each first double-headed motor is fixedly installed with a second winding wheel. The binding band is wound between the first winding wheel and the second winding wheel, and the limiting rubber wheel is in contact with the binding band.

[0020] The beneficial effect of adopting the above further scheme is that during operation, the working states of the two first double-headed motors can be independently controlled. Through the independent control of the working states of the two first double-headed motors, the tightness of the binding band and the released length of the binding band are controlled, thereby realizing the fixation operation of the human arm.

[0021] Further, the distance adjustment module includes a second double-headed motor installed on the pressing frame. The inner wall of the pressing frame is rotatably connected with two distance adjustment lead screws. A first bevel gear is installed on each of the two distance adjustment lead screws. The two output shaft ends of the second double-headed motor are fixedly installed with a second bevel gear respectively. The two second bevel gears are respectively in transmission connection with the two first bevel gears. A positive thread section and a reverse thread section are respectively arranged on the distance adjustment lead screws. The positive thread section and the reverse thread section are respectively in transmission connection with the two binding clamps.

[0022] The beneficial effect of adopting the above further scheme is that during use, through the setting of the distance adjustment module, the two binding clamps can approach or move away from each other synchronously. By changing the distance between the two binding clamps, the contact length between the binding band and the human skin is adjusted, and the distance between the two clamps is adapted to the width of the human arm. Through the realization of the above functions of adjusting the clamping limit area and the clamping distance, the device is suitable for the arm fixation operation of different patients;

[0023] And through the setting of the winding mechanism, the switching of the position where the binding band is used can be realized, thereby realizing the replacement operation of the binding band.

[0024] Furthermore, the profiling pressing module includes an air pump installed on the pressing frame. At the positions corresponding to between the two beam clamps on the inner wall of the pressing frame, a profiling pressing bladder is installed respectively. The air outlet ports of the air pump are communicated with the inner cavities of the two profiling pressing bladders through pump air pipes. A second air pressure probe is installed on the pump air pipe, and the data end of the second air pressure probe is connected to the PC host computer for data connection.

[0025] The beneficial effect of adopting the above further solution is that after the beam band fixes the arm, the air pump pressurizes the inside of the profiling pressing bladder sufficiently until the air pressure value of the second air pressure probe reaches the set value. Through the profiling pressing structure setting of the profiling pressing bladder, the profiling pressing and limiting of the patient's arm are carried out, and the stability of the patient's arm during the puncture operation is maintained and the positioning accuracy of this auxiliary positioning device is assisted to be improved.

[0026] Furthermore, a lifting module is installed on the carrier vehicle. The lifting module is in transmission connection with the pressing frame. An axial screw rod transmission module is installed inside the flipping arm. An axial movement frame is in transmission connection on the axial screw rod transmission module. A longitudinal screw rod transmission module is installed on the axial movement frame. A longitudinal movement seat is installed in transmission on the longitudinal screw rod transmission module. The ultrasonic imaging probe is fixed on the longitudinal movement seat, and the scanning direction of the ultrasonic imaging probe is perpendicular to the axis of the puncture needle tube.

[0027] The beneficial effect of adopting the above further solution is that through the settings of the axial screw rod transmission module and the longitudinal screw rod transmission module, the relative positions of the ultrasonic imaging probe and the puncture needle tube are adjusted bidirectionally, and when the puncture operation of the puncture needle tube is carried out, the puncture needle tube and the scanning direction of the ultrasonic imaging probe are kept perpendicular in real time.

[0028] Furthermore, the rotation axis of the flipping arm is on the same straight line as the axis of the puncture needle tube.

[0029] Furthermore, a group of sealing rubber rings are installed at the end of the positive pressure positioning cylinder. Both the sealing rubber ring and the corrugated cylinder are made of silica gel. Two T-shaped guide rods are installed on the back of the positive pressure positioning cylinder, and both of the two T-shaped guide rods are slidably connected with the feeding table.

[0030] The beneficial effects of the present invention are:

[0031] 1. In the present invention, during vascular intervention puncture, through the settings of the second linear drive module, electric rotator, first rocker arm, second rocker arm, positioning arm and multiple groups of electric push rods, the spatial layout position and spatial layout angle of the positioning arm can be adjusted. By realizing the adjustable effect of the spatial layout position and spatial layout angle of the positioning arm, multi-directional puncture operations during the vascular intervention puncture process can be achieved. Moreover, during the vascular intervention puncture, the ultrasonic imaging probe performs real-time ultrasonic imaging on the puncture needle tube. The data collected by the ultrasonic imaging probe is transmitted to the PC host in real time and imaged in the PC host. Through the real-time imaging of the ultrasonic imaging probe, the puncture state of the puncture needle tube and the feeding position of the puncture needle tube can be accurately judged, and then the setting of the positioning parameters of the puncture needle tube and the maintenance of the positioning accuracy can be assisted.

[0032] 2. During the puncture operation of the present invention, when it is necessary to realize the positive pressure maintenance operation of the positive pressure positioning cylinder, a certain amount of alcohol is stored in the alcohol storage cavity. The height of the alcohol in the alcohol storage cavity should ensure that it covers the outlet position of the one-way intake valve. Through the alcohol storage setting in the alcohol storage cavity, alcohol disinfection during the intake process of the one-way intake valve can be realized. The gas after alcohol disinfection finally enters the action area of the positive pressure pump through the one-way outlet pipe and is pumped out by the positive pressure pump. The gas pumped out by the positive pressure pump finally enters the positive pressure cavity. Among them, when the gas pumped out by the positive pressure pump flows through the heating sleeve, it is heated by the heating sleeve. Through heating, the comfort of the human outer skin surface can be improved. At the same time, through the setting of the first air pressure probe, when the vascular puncture operation is carried out, the air pressure in the positive pressure positioning cylinder is higher than the internal pressure in the blood vessel. By increasing the pressure difference, the overflow rate of blood between the puncture needle tube and the human skin during the puncture process can be effectively reduced, and then the bleeding degree and bleeding rate during the puncture process can be reduced. At the same time, by providing the positive pressure difference, the blood vessel can be squeezed to a certain extent. Through squeezing, the blood sample outflow rate during vascular puncture sampling can be increased, and then the puncture sampling efficiency can be improved. Moreover, through the setting of the alcohol inflation wrapping structure, the contamination rate of the puncture needle tube can be effectively reduced.

[0033] 3. In the present invention, through the setting of the distance adjustment module, the two beam clamps can approach or move away from each other synchronously. By changing the distance between the two beam clamps, the contact length between the beam band and the human skin is adjusted, and the distance between the two clamps is adapted to the width of the human arm. Through the realization of the above-mentioned functions of adjusting the clamping limit area and the clamping distance, the device is applicable to the arm fixation operation of different patients. And through the setting of the winding mechanism, the switching of the position where the beam band is used can be realized, and then the replacement operation of the beam band can be realized. After the beam band fixes the arm, the air pump pressurizes the inside of the profiling pressure capsule sufficiently until the air pressure value of the second air pressure probe reaches the set value. Through the setting of the profiling pressing structure of the profiling pressure capsule, the arm of the patient is profiled and pressed for limitation, and the stability of the patient's arm during the puncture operation is maintained, and the positioning accuracy of the auxiliary positioning device is assisted to be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 is the overall structural schematic diagram of an auxiliary positioning device for vascular intervention puncture according to the present invention;

[0035] Figure 2 is the structural schematic diagram of the pressing frame and the limiting rubber wheel of the present invention;

[0036] Figure 3 is of the present invention Figure 2 structural schematic diagram from another perspective;

[0037] Figure 4 is the structural schematic diagram of the alcohol storage tank and the positioning arm of the present invention;

[0038] Figure 5 is the cross-sectional structural schematic diagram of the one-way air outlet pipe of the present invention;

[0039] Figure 6 is the structural schematic diagram of the flipping motor and the positioning arm of the present invention;

[0040] Figure 7 is the structural schematic diagram of the first linear drive module and the positive pressure positioning cylinder of the present invention;

[0041] Figure 8 is of the present invention Figure 7 partial enlarged structural schematic diagram at A;

[0042] Figure 9 is the structural schematic diagram of the rotating plate and the electric rotation of the present invention.

[0043] In the drawings, the list of components represented by each reference numeral is as follows:

[0044] 1. Carrier vehicle; 2. Moving platform; 3. Positioning arm; 4. First linear drive module; 5. Feeding platform; 6. Puncture needle tube; 7. Positive pressure positioning cylinder; 8. Corrugated cylinder; 9. Spring; 10. Sealing ring capsule; 11. Tipping motor; 12. Tipping arm; 13. Ultrasonic imaging probe; 14. Pressing frame; 15. Band; 16. Band clamp; 17. Limiting rubber wheel; 18. PC host; 19. Electric control box; 20. Second linear transmission module; 21. Electric rotary device; 22. Rotary plate; 23. First rocker arm; 24. Second rocker arm; 25. Electric push rod; 26. Alcohol storage tank; 27. One-way intake valve; 28. One-way outlet pipe; 29. Positive pressure pump; 30. Heating sleeve; 31. First air pressure probe; 32. First double-headed motor; 33. First reel; 34. Second reel; 35. Distance adjusting lead screw; 36. Air pump; 37. Profiling pressure capsule; 38. Second air pressure probe; 39. Lifting module; 40. Axial lead screw transmission module; 41. Axial movement frame; 42. Longitudinal lead screw transmission module; 43. Second double-headed motor; 44. Longitudinal movement seat; 45. T-shaped guide rod. Detailed implementation mode

[0045] The principles and features of the present invention will be described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not intended to limit the scope of the present invention.

[0046] As Figures 1-9 shown, an auxiliary positioning device for vascular intervention puncture includes a carrier vehicle 1, and a PC host 18 is installed on the surface of the carrier vehicle 1;

[0047] An electric control box 19 electrically connected to the PC host 18 is installed on the carrier vehicle 1, and a set of casters is installed on the bottom surface of the carrier vehicle 1;

[0048] A movable moving platform 2 is installed on the carrier vehicle 1, a multi-axis drive platform is installed on the moving platform 2, and a positioning arm 3 with adjustable spatial position and spatial angle is connected to the multi-axis drive platform;

[0049] A second linear transmission module 20 is installed on the carrier vehicle 1, and the second linear transmission module 20 is in transmission connection with the moving platform 2;

[0050] The multi-axis drive platform includes an electric rotary device 21 installed on the moving platform 2. A rotary plate 22 is installed on the rotation surface of the electric rotary device 21. A first rocker arm 23 is hinged on the surface of the rotary plate 22. The end of the first rocker arm 23 is hinged to a second rocker arm 24. The second rocker arm 24 is hinged to the positioning arm 3. A set of electric push rods 25 are hinged between the rotary plate 22 and the first rocker arm 23, between the second rocker arm 24 and the first rocker arm 23, and between the positioning arm 3 and the second rocker arm 24. The rotation axis of the electric rotary device 21 is perpendicular to the axis of the puncture needle tube 6.

[0051] When performing vascular intervention puncture, through the settings of the second linear drive module 20, the electric rotator 21, the first rocker arm 23, the second rocker arm 24, the positioning arm 3 and multiple groups of electric push rods 25, the spatial layout position and spatial layout angle of the positioning arm 3 can be adjusted. By realizing the adjustable effect of the spatial layout position and spatial layout angle of the positioning arm 3, multi-directional puncture operations during the vascular intervention puncture process can be achieved;

[0052] A first linear drive module 4 is installed on the positioning arm 3. A feed table 5 is drivingly installed on the first linear drive module 4. A puncture needle tube 6 is installed on the feed table 5. A positive pressure positioning cylinder 7 slidably connected to the feed table 5 is sleeved outside the feed table 5. A group of sealing rubber rings are installed at the end of the positive pressure positioning cylinder 7;

[0053] Two T-shaped guide rods 45 are installed on the back of the positive pressure positioning cylinder 7. Both of the two T-shaped guide rods 45 are slidably connected to the feed table 5;

[0054] A corrugated cylinder 8 is installed between the positive pressure positioning cylinder 7 and the feed table 5. Both the sealing rubber ring and the corrugated cylinder 8 are made of silica gel;

[0055] A positive pressure chamber is provided inside the corrugated cylinder 8. A spring 9 is sleeved on the corrugated cylinder 8 at the position corresponding to between the positive pressure positioning cylinder 7 and the feed table 5;

[0056] A sealing ring bladder 10 is installed on the inner wall of the feed table 5. A sterilization air inlet mechanism is installed on the carrier vehicle 1. The inner cavities of the positive pressure chamber and the sealing ring bladder 10 are both communicated with the sterilization air inlet mechanism;

[0057] The sterilization air inlet mechanism includes an alcohol storage tank 26 installed on the moving table 2. An alcohol storage cavity is fixedly opened inside the alcohol storage tank 26. A one-way air inlet valve 27 is installed on the alcohol storage tank 26. The outlet port of the one-way air inlet valve 27 is immersed in the alcohol storage cavity. A one-way air outlet pipe 28 is communicated with the top surface of the alcohol storage tank 26. A positive pressure pump 29 is installed on the side of the alcohol storage tank 26. The outlet port of the one-way air outlet pipe 28 is communicated with the inlet port of the positive pressure pump 29. The outlet port of the positive pressure pump 29 is communicated with a heating sleeve 30. The outlet port of the heating sleeve 30 is communicated with a ventilation hose. The inner cavities of the sealing ring bladder 10 and the positive pressure chamber are both communicated with the ventilation hose. A first air pressure probe 31 is installed in the ventilation hose. The data end of the first air pressure probe 31 is data-connected to the PC host 18.

[0058] When it is necessary to realize the positive pressure maintenance operation of the positive pressure positioning cylinder 7, a certain amount of alcohol is stored in the alcohol storage cavity. The height of the alcohol in the alcohol storage cavity should ensure that it submerges the outlet position of the one-way air inlet valve 27. Through the alcohol storage setting in the alcohol storage cavity, alcohol disinfection during the air intake process of the one-way air inlet valve 27 is realized. The gas after alcohol disinfection finally enters the action area of the positive pressure pump 29 through the one-way air outlet pipe 28 and is pumped out by the positive pressure pump 29;

[0059] The gas blown out by the positive pressure pump 29 eventually enters the positive pressure chamber, wherein the gas blown out by the positive pressure pump 29 is heated by the heating sleeve 30 when flowing through the heating sleeve 30. The heating can improve the comfort of the human outer surface skin. At the same time, through the setting of the first air pressure probe 31, when the blood vessel puncture operation is in progress, the air pressure in the positive pressure positioning cylinder 7 is higher than the internal pressure in the blood vessel. The pressure difference is increased to effectively reduce the overflow rate of blood from the puncture needle tube 6 and the human skin during the puncture process, thereby reducing the bleeding degree and bleeding rate during the puncture process. At the same time, the positive pressure difference is provided to squeeze the blood vessel to a certain extent. Through squeezing, the blood sample outflow rate during blood vessel puncture sampling is increased, thereby improving the puncture sampling efficiency. In addition, the alcohol-inflated wrapping structure is set to effectively reduce the contamination rate of the puncture needle tube 6.

[0060] A flip arm 12 driven by a flip motor 11 is rotatably mounted on the positioning arm 3, the rotation axis of the flip arm 12 is in the same straight line as the axis of the puncture needle tube 6, and a biaxially movable ultrasound imaging probe 13 is mounted on the flip arm 12;

[0061] The data terminal of the ultrasonic imaging probe 13 is connected to the PC host 18;

[0062] When performing vascular interventional puncture, the ultrasonic imaging probe 13 performs real-time ultrasonic imaging of the puncture needle tube 6. The data collected by the ultrasonic imaging probe 13 is transmitted to the PC host 18 in real time and imaged in the PC host 18. The real-time imaging of the ultrasonic imaging probe 13 can accurately determine the puncture state and feeding position of the puncture needle tube 6.

[0063] A lifting and lowering pressing frame 14 is installed on the carrier 1;

[0064] A lifting module 39 is installed on the carrier 1, and the lifting module 39 is transmission-connected to the pressing frame 14;

[0065] A winding mechanism and a distance adjustment module are installed on the pressure frame 14. Two symmetrically arranged straps 15 are transmission-connected to the winding mechanism. Two adjustable-distance clamps 16 are transmission-installed on the distance adjustment module. A limiting rubber wheel 17 is rotatably installed on the inner wall of the clamp 16 and the inner wall corresponding to the two straps 15. A contoured pressing and holding module cooperating with the straps 15 is installed in the middle of the pressure frame 14.

[0066] The winding mechanism includes two first double-headed motors 32 installed on the pressure frame 14, and the two output shaft ends of one first double-headed motor 32 are fixedly installed with a first reel 33, and the two output shaft ends of the other first double-headed motor 32 are fixedly installed with a second reel 34. The strap 15 is wound between the first reel 33 and the second reel 34, and the limiting rubber wheel 17 is in contact with the strap 15.

[0067] During operation, the operating states of the two first double-headed motors 32 can be independently controlled. By independently controlling the operating states of the two first double-headed motors 32, the tension of the strap 15 and the released length of the strap 15 are controlled, thereby realizing the fixation operation on the human arm.

[0068] The distance adjustment module includes a second double-headed motor 43 installed on the pressing frame 14. Two distance adjustment lead screws 35 are rotatably connected to the inner wall of the pressing frame 14. A first bevel gear is installed on each of the two distance adjustment lead screws 35. A second bevel gear is fixedly installed at each output shaft end of the second double-headed motor 43. The two second bevel gears are respectively in transmission connection with the two first bevel gears. A positive thread section and a reverse thread section are respectively provided on the distance adjustment lead screws 35. The positive thread section and the reverse thread section are respectively in transmission connection with the two strap clamps 16.

[0069] During use, through the setting of the distance adjustment module, the two strap clamps 16 can approach or move away from each other synchronously. By changing the distance between the two strap clamps 16, the contact length between the strap 15 and the human skin is adjusted, and the distance between the two clamps is adapted to the width of the human arm. By realizing the above functions of adjusting the clamping limit area and the clamping distance, the device is suitable for the arm fixation operation of different patients;

[0070] Moreover, through the setting of the winding mechanism, the switching of the position where the strap 15 is used can be realized, and then the operation of using the strap 15 at a different position can be realized.

[0071] The profiling pressing module includes an air pump 36 installed on the pressing frame 14. A profiling pressing bladder 37 is installed on the inner wall of the pressing frame 14 corresponding to the position between the two strap clamps 16. The air outlet port of the air pump 36 is respectively communicated with the inner cavities of the two profiling pressing bladders 37 through pump air pipes. A second air pressure probe 38 is installed on the pump air pipes. The data end of the second air pressure probe 38 is data-connected to the PC host 18.

[0072] After the strap 15 finishes fixing the arm, the air pump 36 fully pressurizes the inside of the profiling pressing bladder 37 until the air pressure value of the second air pressure probe 38 reaches the set value. Through the setting of the profiling pressing structure of the profiling pressing bladder 37, the profiling pressing and limiting of the patient's arm are carried out, and the stability of the patient's arm during the puncture operation is maintained and the positioning accuracy of this auxiliary positioning device is assisted to be improved.

[0073] An axial lead screw transmission module 40 is installed inside the flipping arm 12. A shaft moving frame 41 is in transmission connection with the axial lead screw transmission module 40. A longitudinal lead screw transmission module 42 is installed on the shaft moving frame 41. A longitudinal moving seat 44 is in transmission installation on the longitudinal lead screw transmission module 42. The ultrasonic imaging probe 13 is fixed on the longitudinal moving seat 44. The scanning direction of the ultrasonic imaging probe 13 is perpendicular to the axis of the puncture needle tube 6.

[0074] Through the settings of the axial lead screw drive module 40 and the longitudinal lead screw drive module 42, the relative positions of the ultrasonic imaging probe 13 and the puncture needle tube 6 are adjusted bidirectionally. Moreover, when the puncture operation of the puncture needle tube 6 is carried out, the puncture needle tube 6 and the scanning direction of the ultrasonic imaging probe 13 are kept perpendicular in real time.

[0075] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. An auxiliary positioning device for vascular interventional puncture, comprising a vehicle (1), characterized in that: The carrier (1) is provided with a movable platform (2), the platform (2) is provided with a multi-axis driving platform, the multi-axis driving platform is connected with a positioning arm (3) whose spatial position and spatial angle are adjustable, the positioning arm (3) is provided with a first linear driving module (4), the first linear driving module (4) is provided with a feeding platform (5) in a transmission manner, the feeding platform (5) is provided with a puncture needle tube (6), the outer side of the feeding platform (5) is provided with a positive pressure positioning cylinder (7) which is slidably connected to the feeding platform (5), a corrugated cylinder (8) is provided between the positive pressure positioning cylinder (7) and the feeding platform (5), and the inner side of the corrugated cylinder (8) is provided with a positive pressure chamber; A spring (9) is sleeved on the corrugated cylinder (8) and corresponds to the position between the positive pressure positioning cylinder (7) and the feed platform (5); a sealing ring bag (10) is installed on the inner wall of the feed platform (5); a sterilizing air inlet mechanism is installed on the carrier (1); the positive pressure chamber and the inner cavity of the sealing ring bag (10) are both connected to the sterilizing air inlet mechanism; a flip arm (12) driven by a flip motor (11) is rotatably installed on the positioning arm (3); and a biaxially movable ultrasound imaging probe (13) is installed on the flip arm (12); The carrier (1) is provided with a liftable pressing frame (14), the pressing frame (14) is provided with a winding mechanism and a distance adjustment module, the winding mechanism is connected to two symmetrically arranged straps (15) in a transmission manner, the distance adjustment module is provided with two strap clamps (16) with adjustable spacing in a transmission manner, the inner wall of the strap clamp (16) and the inner wall of the two straps (15) are both rotatably provided with a limiting rubber wheel (17), and the middle part of the pressing frame (14) is provided with a contoured pressing module cooperating with the straps (15); A PC host (18) is installed on the surface of the vehicle (1), a data terminal of the ultrasound imaging probe (13) is data-connected to the PC host (18), an electric control box (19) electrically connected to the PC host (18) is installed on the vehicle (1), a set of casters is installed on the bottom surface of the vehicle (1), a second linear transmission module (20) is installed on the vehicle (1), and the second linear transmission module (20) is transmission-connected to the moving platform (2); The multi-axis driving platform comprises an electric rotator (21) mounted on a moving platform (2), a rotating plate (22) being mounted on a rotating surface of the electric rotator (21), a first rocker arm (23) being hingedly connected to the surface of the rotary plate (22), a second rocker arm (24) being hingedly connected to the end of the first rocker arm (23), the second rocker arm (24) being hingedly connected to a positioning arm (3), a group of electric push rods (25) being hingedly connected between the rotary plate (22) and the first rocker arm (23), between the second rocker arm (24) and the first rocker arm (23), and between the positioning arm (3) and the second rocker arm (24), and the rotation axis of the electric rotator (21) is perpendicular to the axis of the puncture needle tube (6); The sterilization air inlet mechanism comprises an alcohol storage tank (26) mounted on the moving platform (2), an alcohol storage cavity is fixedly opened inside the alcohol storage tank (26), a one-way air inlet valve (27) is mounted on the alcohol storage tank (26), an air outlet port of the one-way air inlet valve (27) is immersed in the alcohol storage cavity, a one-way air outlet pipe (28) is connected to the top surface of the alcohol storage tank (26), a positive pressure pump (29) is mounted on the side of the alcohol storage tank (26), an air outlet port of the one-way air outlet pipe (28) is connected to an air inlet port of the positive pressure pump (29), and an air outlet port of the positive pressure pump (29) is connected to a heating sleeve (30); The pitch adjustment module comprises a second double-headed motor (43) mounted on a pressure frame (14); the inner wall of the pressure frame (14) is rotatably connected to two pitch adjustment screws (35); a first bevel gear is mounted on each of the two pitch adjustment screws (35); a second bevel gear is fixedly mounted on each of the two output shaft ends of the second double-headed motor (43); the two second bevel gears are respectively transmission-connected to the two first bevel gears; the pitch adjustment screw (35) is respectively provided with a positive thread segment and a negative thread segment; the positive thread segment and the negative thread segment are respectively transmission-connected to the two clamps (16); The air outlet port of the heating sleeve (30) is connected to a ventilation hose, the inner cavity and the positive pressure cavity of the sealing ring bag (10) are both connected to the ventilation hose, a first air pressure probe (31) is installed in the ventilation hose, and the data end of the first air pressure probe (31) is connected to the PC host (18); The winding mechanism comprises two first double-headed motors (32) mounted on a pressing frame (14); a first reel (33) is fixedly mounted on both output shaft ends of one of the first double-headed motors (32); a second reel (34) is fixedly mounted on both output shaft ends of the other first double-headed motor (32); the strap (15) is wound between the first reel (33) and the second reel (34); and the limiting rubber wheel (17) is in contact with the strap (15); The contoured pressing and holding module comprises an air pump (36) mounted on a pressing frame (14); a contoured pressing bag (37) is mounted on the inner wall of the pressing frame (14) and at a position corresponding to between the two clamps (16); an air outlet port of the air pump (36) is connected to the inner cavities of the two contoured pressing bags (37) via a pump air pipe.

2. The auxiliary positioning device for vascular interventional puncture according to claim 1, characterized in that: A second air pressure probe (38) is installed on the pump air pipe, and a data end of the second air pressure probe (38) is data-connected to a PC host (18).

3. The auxiliary positioning device for vascular interventional puncture according to claim 1, characterized in that: The carrier (1) is provided with a lifting module (39), the lifting module (39) being in driving connection with the pressing frame (14), the interior of the flip arm (12) being provided with an axial screw transmission module (40), the axial screw transmission module (40) being in driving connection with an axial shift frame (41), the axial shift frame (41) being provided with a longitudinal screw transmission module (42), the longitudinal screw transmission module (42) being in driving connection with a longitudinal shift seat (44), the ultrasonic imaging probe (13) being fixed on the longitudinal shift seat (44), the scanning direction of the ultrasonic imaging probe (13) being perpendicular to the axis of the puncture needle tube (6).

4. The auxiliary positioning device for vascular interventional puncture according to claim 1, characterized in that: The rotation axis of the flip arm (12) and the axis of the puncture needle tube (6) are in the same straight line.

5. The auxiliary positioning device for vascular interventional puncture according to claim 1, characterized in that: A group of sealing rubber rings are installed at the end of the positive pressure positioning cylinder (7), and the sealing rubber rings and the corrugated cylinder (8) are both made of silicone material. Two T-shaped guide rods (45) are installed on the back of the positive pressure positioning cylinder (7), and the two T-shaped guide rods (45) are both slidably connected to the feed table (5).

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