Auxiliary positioning equipment for vascular intervention puncture

Abstract

The invention relates to the technical field of auxiliary positioning equipment for puncture, in particular to auxiliary positioning equipment for vascular intervention puncture, which comprises a carrier vehicle, a movable moving table is mounted on the carrier vehicle, a multi-axis driving platform is mounted on the moving table, and a positioning arm with adjustable spatial position and spatial angle is connected onto the multi-axis driving platform. A first linear driving module is installed on the positioning arm, a feeding table is installed on the first linear driving module in a transmission mode, and a puncture needle tube is installed on the feeding table. The device has the beneficial effects that the effect of adjusting the space arrangement position and the space arrangement angle of the positioning arm is achieved, so that multi-directional puncture operation in the blood vessel interventional puncture process is achieved, when blood vessel interventional puncture is carried out, the ultrasonic imaging probe carries out real-time ultrasonic imaging on the puncture needle tube, and the operation efficiency is improved. And data acquired by the ultrasonic imaging probe is transmitted to the PC host in real time and is imaged in the PC host.

Description

Technical Field

[0001] The present invention relates to the technical field of auxiliary positioning equipment for puncture, and in particular to an auxiliary positioning equipment for vascular interventional puncture. Background Art

[0002] Vascular puncture is an invasive clinical operation technique, which mainly enters the venous circulation through the peripheral or central vein, especially for rescuing patients in shock and cardiopulmonary resuscitation to monitor the patient's arterial and venous blood pressure. If the patient's condition is serious, vascular puncture can be performed to avoid repeated punctures.

[0003] In the prior art, the patent document with publication number CN118924392A discloses a peripheral vascular puncture auxiliary device for patients, including a fixed base, on which a base that can move relatively horizontally is movably connected, and a rotatable support is built into the base. The patient's arm is placed in the support. After the arm is bound by an auxiliary binding mechanism, the base can move three-dimensionally. After the above device is attached to the arm, it can move freely and synchronously with the arm, so as to achieve real-time and accurate puncture point placement. However, the above device has the following technical problems when used: 1. It is not convenient to realize multi-directional puncture operation during vascular interventional puncture; 2. During vascular interventional puncture, it is not convenient to use the ultrasound imaging probe to perform real-time ultrasound imaging of the puncture needle tube; 3. It is not convenient to increase the blood sampling rate during puncture by positive pressure and maintain the low bacterial count of the puncture needle before and during use; Based on this, the present invention provides an auxiliary positioning device for vascular interventional puncture to solve the problems raised in the above-mentioned background technology. Summary of the invention

[0004] The present invention aims at the technical problems existing in the prior art and provides an auxiliary positioning device for vascular interventional puncture to solve the problem that the existing equipment is not convenient for realizing multi-directional puncture operations during vascular interventional puncture, and it is not convenient to perform real-time ultrasonic imaging of the puncture needle tube through an ultrasonic imaging probe during vascular interventional puncture.

[0005] The technical solution of the present invention to solve the above technical problems is as follows: an auxiliary positioning device for vascular intervention puncture, comprising a carrier, a movable moving platform is installed on the carrier, 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 feeding platform is transmission-installed on the first linear driving module, a puncture needle tube is installed on the feeding platform, a positive pressure positioning cylinder slidably connected to the feeding platform is sleeved on the outer side of the feeding platform, a corrugated cylinder is installed between the positive pressure positioning cylinder and the feeding platform, a positive pressure cavity is arranged on the inner side of the corrugated cylinder, a spring is sleeved on the corrugated cylinder and corresponds to the position between the positive pressure positioning cylinder and the feeding platform, a sealing ring capsule is installed on the inner wall of the feeding platform, a sterilization air inlet mechanism is installed on the carrier, the inner cavities of the positive pressure cavity and the sealing ring capsule are both connected to the sterilization air inlet mechanism, a flip arm driven by a flip motor is rotatably installed on the positioning arm, and a biaxially movable ultrasound imaging probe is installed on the flip arm; The carrier is provided with a liftable pressure frame, a winding mechanism and a distance-adjusting module are provided on the pressure frame, the winding mechanism is transmission-connected with two symmetrically arranged straps, the distance-adjusting module is transmission-connected with two clamps with adjustable spacing, a limiting rubber wheel is rotatably provided on the inner wall of the clamp and on the inner wall corresponding to the two straps, and a contoured pressing and holding module cooperating with the strap is provided in the middle of the pressure frame.

[0006] Based on the above technical solution, the present invention can also be improved as follows.

[0007] Furthermore, a PC host is installed on the surface of the carrier, the data end of the ultrasonic imaging probe is connected to the PC host, an electric control box electrically connected to the PC host is installed on the carrier, a group of casters is installed on the bottom of the carrier, and a second linear transmission module is installed on the carrier, and the second linear transmission module is connected to the moving stage.

[0008] The beneficial effect of adopting the above further scheme is that when performing vascular interventional puncture, the ultrasonic imaging probe performs real-time ultrasonic imaging of the puncture needle tube, and the data collected by the ultrasonic imaging probe is transmitted to the PC host in real time and imaged in the PC host. The real-time imaging of the ultrasonic imaging probe can accurately determine the puncture status of the puncture needle tube and the feeding position of the puncture needle tube.

[0009] Furthermore, the multi-axis drive platform includes an electric rotator installed on the moving platform, the rotating surface of the electric rotator is installed with a rotating plate, the surface of the rotating plate is hinged with a first rocker arm, the end of the first rocker arm is hinged with a second rocker arm, the second rocker arm is hinged with a positioning arm, a group 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, and the rotation axis of the electric rotator is perpendicular to the axis of the puncture needle tube.

[0010] The beneficial effect of adopting the above further scheme is that when performing vascular interventional puncture, the spatial layout position and spatial layout angle of the positioning arm can be adjusted through the arrangement of the second linear transmission module, the electric rotator, the first rocker arm, the second rocker arm, the positioning arm and multiple groups of electric push rods. By realizing the adjustable spatial layout position and spatial layout angle of the positioning arm, multi-directional puncture operations can be achieved during vascular interventional puncture.

[0011] Furthermore, the sterilization air inlet mechanism includes an alcohol storage tank installed on the moving platform, 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, the top surface of the alcohol storage tank is connected to a one-way air outlet pipe, a positive pressure pump is installed on the side 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, and the data end of the first air pressure probe is connected to the data of the PC host.

[0012] The beneficial effect of adopting the above further scheme is that 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 chamber, and the height of the alcohol in the alcohol storage chamber should be guaranteed to overflow the air outlet position of the one-way air inlet valve, and the alcohol storage arrangement in the alcohol storage chamber is used to realize alcohol disinfection during the air intake process of the one-way air inlet valve, and the gas after alcohol disinfection finally enters the action area of ​​the positive pressure pump through the one-way air outlet pipe and bulges out through the positive pressure pump; The gas blown out by the positive pressure pump eventually enters the positive pressure chamber, wherein the gas blown out by the positive pressure pump is heated by the heating sleeve when flowing through the heating sleeve, and the comfort of the human outer surface skin is improved by heating, and at the same time, through the setting of the first air pressure probe, the air pressure in the positive pressure positioning cylinder is higher than the internal pressure in the blood vessel during the vascular puncture operation, and the pressure difference is increased to effectively reduce the overflow rate of blood between the puncture needle tube and the human skin during the puncture process, thereby reducing the bleeding degree and bleeding rate during the puncture process, and at the same time, the positive pressure difference is provided to squeeze the blood vessel to a certain extent, and the squeezing is used to increase the blood sample outflow rate during blood vessel puncture sampling, thereby improving the puncture sampling efficiency, and the alcohol-inflated wrapping structure is set to effectively reduce the contamination rate of the puncture needle tube before use and during use.

[0013] Furthermore, the winding mechanism includes two first double-headed motors installed on the pressure frame, one of the first double-headed motors has a first reel fixedly installed on both output shaft ends, and the other of the first double-headed motors has a second reel fixedly installed on both output shaft ends, the strap is wound between the first reel and the second reel, and the limiting rubber wheel is in contact with the strap.

[0014] 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, and the tightness of the strap and the release length of the strap can be controlled by independently controlling the working states of the two first double-headed motors, thereby achieving the fixation operation of the human arm.

[0015] Furthermore, the pitch adjusting module includes a second double-headed motor installed on the pressure frame, and the inner wall of the pressure frame is rotatably connected to two pitch adjusting screws, and a first bevel gear is installed on each of the two pitch adjusting screws. A second bevel gear is fixedly installed on both output shaft ends of the second double-headed motor, and the two second bevel gears are respectively connected to the two first bevel gears in transmission, and the pitch adjusting screw is respectively provided with a positive thread segment and a negative thread segment, and the positive thread segment and the negative thread segment are respectively connected to the two clamps in transmission.

[0016] The beneficial effect of adopting the above further scheme is that, when in use, by setting the distance adjustment module, the two clamps can be synchronously moved closer to each other or away from each other, and by changing the distance between the two clamps, the contact length between the strap 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 clamping limit area and clamping distance adjustment functions, the device is suitable for arm fixation operations of different patients; Furthermore, by setting up the winding mechanism, the position where the strap is used can be switched, thereby enabling the strap to be replaced and reused.

[0017] Furthermore, the contouring pressing and holding module includes an air pump installed on a pressing frame, and a contouring pressure bag is installed on the inner wall of the pressing frame and at a position corresponding to the position between the two clamps. The air outlet port of the air pump is connected to the inner cavity of the two contouring pressure bags through a pump air pipe, and a second air pressure probe is installed on the pump air pipe. The data end of the second air pressure probe is connected to the data of the PC host.

[0018] The beneficial effect of adopting the above-mentioned further scheme is that after the strap has fixed the arm, the air pump fills the interior of the contoured pressure bag with sufficient pressure until the air pressure value of the second air pressure probe reaches the set value. The contoured pressure holding structure of the contoured pressure bag is set to perform contoured pressure holding and limit the patient's arm, maintain the stability of the patient's arm during the puncture operation, and help improve the positioning accuracy of the auxiliary positioning device.

[0019] Furthermore, a lifting module is installed on the carrier, and the lifting module is transmission connected to the pressure frame, an axial screw transmission module is installed inside the flip arm, the axial screw transmission module is transmission connected to the axis shifting frame, the axis shifting frame is installed with a longitudinal screw transmission module, and a longitudinal shifting seat is transmission installed on the longitudinal screw transmission module, the ultrasonic imaging probe is fixed on the longitudinal shifting seat, and the scanning direction of the ultrasonic imaging probe is perpendicular to the axis of the puncture needle tube.

[0020] The beneficial effect of adopting the above further scheme is that, by setting the axial screw transmission module and the longitudinal screw transmission module, the relative position of the ultrasound imaging probe and the puncture needle tube can be adjusted in both directions, and when the puncture needle tube is puncturing, the scanning direction of the puncture needle tube and the ultrasound imaging probe is kept vertical in real time.

[0021] Furthermore, the rotation axis of the flip arm is in the same straight line as the axis of the puncture needle tube.

[0022] Furthermore, a group of sealing rubber rings are installed at the end of the positive pressure positioning cylinder, and the sealing rubber rings and the corrugated cylinder are both made of silicone. Two T-shaped guide rods are installed on the back of the positive pressure positioning cylinder, and the two T-shaped guide rods are both slidably connected to the feed table.

[0023] The beneficial effects of the present invention are: 1. In the present invention, when performing vascular interventional puncture, the second linear transmission module, the electric rotator, the first rocker arm, the second rocker arm, the positioning arm and the plurality of electric push rods are arranged so that the spatial layout position and the spatial layout angle of the positioning arm are adjustable. By realizing the adjustable effect of the spatial layout position and the spatial layout angle of the positioning arm, a multi-directional puncture operation in the process of vascular interventional puncture is realized. When the vascular interventional puncture is performed, the ultrasonic imaging probe performs real-time ultrasonic imaging of 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. The real-time imaging of the ultrasonic imaging probe can accurately determine the puncture state and the feeding position of the puncture needle tube, thereby assisting in the setting of the positioning parameters of the puncture needle tube and maintaining the positioning accuracy.

[0024] 2. During the puncture operation, when the positive pressure positioning cylinder needs to be maintained, a fixed amount of alcohol is stored in the alcohol storage chamber. The height of the alcohol in the alcohol storage chamber should be guaranteed to overflow the air outlet position of the one-way air inlet valve. The alcohol storage arrangement in the alcohol storage chamber can realize alcohol disinfection during the air intake process of the one-way air inlet valve. The gas disinfected by alcohol eventually enters the action area of ​​the positive pressure pump through the one-way air outlet pipe and bulges out through the positive pressure pump. The gas bulged out by the positive pressure pump eventually enters the positive pressure chamber. The gas bulged out by the positive pressure pump is heated by the heating sleeve when it flows through the heating sleeve. The heating is used to increase the pressure. The device improves the comfort level of the human outer surface skin. 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. The pressure difference is increased to effectively reduce the overflow rate of blood between the puncture needle 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.

[0025] 3. In the present invention, by setting the distance adjustment module, the two clamps can be synchronously moved closer to or away from each other, and the distance between the two clamps is changed to adjust the contact length between the strap and the human skin and make the distance between the two clamps adapt to the width of the human arm. By realizing the clamping limit area and the clamping distance adjustment function, the device is suitable for arm fixation operations of different patients, and by setting the winding mechanism, the position of the strap can be switched, and then the strap can be replaced. After the strap fixes the arm, the air pump charges the interior of the contoured pressure bag with sufficient pressure until the air pressure value of the second air pressure probe reaches the set value. The contoured pressure holding structure of the contoured pressure bag is set to limit the patient's arm, maintain the stability of the patient's arm during the puncture operation, and help improve the positioning accuracy of the auxiliary positioning device. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the overall structure of an auxiliary positioning device for vascular interventional puncture according to the present invention; Figure 2 It is a schematic diagram of the structure of the pressing frame and the limiting rubber wheel of the present invention; Figure 3 For the present invention Figure 2 A schematic diagram of the structure from another perspective; Figure 4 It is a schematic diagram of the structure of the alcohol storage tank and the positioning arm of the present invention; Figure 5 It is a schematic diagram of the cross-sectional structure of the one-way air outlet pipe of the present invention; Figure 6 It is a schematic diagram of the structure of the flip motor and the positioning arm of the present invention; Figure 7 It is a structural schematic diagram of the first linear drive module and the positive pressure positioning cylinder of the present invention; Figure 8 For the present invention Figure 7 A schematic diagram of the local enlarged structure at point A in the middle; Fig. 9 It is a schematic diagram of the structure of the rotary plate and electric rotation of the present invention.

[0027] In the accompanying drawings, the components represented by the reference numerals are listed as follows: 1. Carrier; 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. Flip motor; 12. Flip arm; 13. Ultrasonic imaging probe; 14. Press frame; 15. Strap; 16. Clamp; 17. Limit rubber wheel; 18. PC host; 19. Electric control box; 20. Second linear drive module; 21. Electric rotator; 22. Rotating plate; 23. First rocker arm; 24. Second rocker arm; 25 , electric push rod; 26, alcohol storage tank; 27, one-way air inlet valve; 28, one-way air 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, pitch-adjusting screw; 36, air pump; 37, contoured pressure bag; 38, second air pressure probe; 39, lifting module; 40, axial screw transmission module; 41, axial shift frame; 42, longitudinal screw transmission module; 43, second double-headed motor; 44, longitudinal shift seat; 45, T-shaped guide rod. DETAILED DESCRIPTION

[0028] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0029] like Figure 1-9 As shown, an auxiliary positioning device for vascular interventional puncture includes a vehicle 1, and a PC host 18 is installed on the surface of the vehicle 1; An electric control box 19 electrically connected to the PC host 18 is installed on the trolley 1, and a set of casters is installed on the bottom surface of the trolley 1; A movable platform 2 is installed on the carrier 1, a multi-axis driving platform is installed on the platform 2, and a positioning arm 3 with adjustable spatial position and spatial angle is connected to the multi-axis driving platform; A second linear transmission module 20 is installed on the carrier 1, and the second linear transmission module 20 is transmission-connected with the moving platform 2; The multi-axis driving platform includes an electric rotator 21 installed on the moving platform 2, a rotating plate 22 is installed on the rotating surface of the electric rotator 21, a first rocker arm 23 is hinged on the surface of the rotating plate 22, a second rocker arm 24 is hinged on the end of the first rocker arm 23, the second rocker arm 24 is hinged to the positioning arm 3, a group of electric push rods 25 are hinged between the rotating 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.

[0030] When performing vascular interventional puncture, the second linear transmission module 20, the electric rotator 21, the first rocker arm 23, the second rocker arm 24, the positioning arm 3 and the plurality of electric push rods 25 are arranged so that the spatial layout position and the spatial layout angle of the positioning arm 3 can be adjusted. By achieving the adjustable effect of the spatial layout position and the spatial layout angle of the positioning arm 3, a multi-directional puncture operation during the vascular interventional puncture process can be achieved; A first linear drive module 4 is installed on the positioning arm 3, a feed table 5 is 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 on the outer side of the feed table 5, and a group of sealing rubber rings are installed at the end of the positive pressure positioning cylinder 7; 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; A corrugated cylinder 8 is installed between the positive pressure positioning cylinder 7 and the feed table 5, and the sealing rubber ring and the corrugated cylinder 8 are both made of silicone; A positive pressure chamber is provided inside the bellows 8, and a spring 9 is sleeved on the bellows 8 and corresponds to the position between the positive pressure positioning cylinder 7 and the feed table 5; A sealing ring capsule 10 is installed on the inner wall of the feeding table 5, and a sterilizing air inlet mechanism is installed on the carrier 1. The positive pressure chamber and the inner cavity of the sealing ring capsule 10 are both connected to the sterilizing air inlet mechanism; The sterilization air inlet mechanism includes an alcohol storage tank 26 installed on the movable platform 2, and 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, and the air outlet port of the one-way air inlet valve 27 is immersed in the alcohol storage cavity. The top surface of the alcohol storage tank 26 is connected to a one-way air outlet pipe 28, and a positive pressure pump 29 is installed on the side of the alcohol storage tank 26. The air outlet port of the one-way air outlet pipe 28 is connected to the air inlet port of the positive pressure pump 29, and the air outlet port of the positive pressure pump 29 is connected to a heating sleeve 30, and the air outlet port of the heating sleeve 30 is connected to a ventilation hose. The inner cavity of the sealing ring bag 10 and the positive pressure cavity 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 data of the PC host 18.

[0031] 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 chamber, and the height of the alcohol in the alcohol storage chamber should be guaranteed to overflow the air outlet position of the one-way air inlet valve 27. Through the alcohol storage arrangement in the alcohol storage chamber, alcohol disinfection is realized during the air intake process of the one-way air inlet valve 27. 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 bulged out through the positive pressure pump 29; 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.

[0032] 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; The data terminal of the ultrasonic imaging probe 13 is connected to the PC host 18; 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. A lifting and lowering pressing frame 14 is installed on the carrier 1; A lifting module 39 is installed on the carrier 1, and the lifting module 39 is transmission-connected to the pressing frame 14; 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.

[0033] 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.

[0034] During operation, the working states of the two first double-headed motors 32 can be independently controlled. By independently controlling the working states of the two first double-headed motors 32, the tightness of the strap 15 and the length of the strap 15 can be controlled, thereby achieving the fixation of the human arm.

[0035] The pitch adjusting module includes a second double-headed motor 43 installed on the pressure frame 14. The inner wall of the pressure frame 14 is rotatably connected to two pitch adjusting screws 35. A first bevel gear is installed on each of the two pitch adjusting screws 35. A second bevel gear is fixedly installed on each of the two output shaft ends of the second double-headed motor 43. The two second bevel gears are respectively connected to the two first bevel gears in transmission. A positive thread segment and a negative thread segment are respectively provided on the pitch adjusting screw 35. The positive thread segment and the negative thread segment are respectively connected to the two clamps 16 in transmission.

[0036] When in use, the distance adjustment module is set so that the two clamps 16 can be synchronously moved closer to each other or away from each other, and the distance between the two clamps 16 is changed to adjust the contact length between the strap 15 and the human skin and make the distance between the two clamps fit the width of the human arm. By realizing the clamping limit area and clamping distance adjustment functions, the device is suitable for arm fixation operations of different patients. Furthermore, by setting up the winding mechanism, the position where the strap 15 is used can be switched, thereby realizing the operation of changing the position of the strap 15 .

[0037] The contouring pressing and holding module includes an air pump 36 installed on the pressing frame 14. A contouring pressure bag 37 is installed on the inner wall of the pressing frame 14 and corresponds to the position between the two clamps 16. The air outlet port of the air pump 36 is connected to the inner cavity of the two contouring pressure bags 37 through a pump air pipe. A second air pressure probe 38 is installed on the pump air pipe. The data end of the second air pressure probe 38 is connected to the data of the PC host 18.

[0038] After the strap 15 has fixed the arm, the air pump 36 fills the interior of the contoured pressure bag 37 with sufficient pressure until the air pressure value of the second air pressure probe 38 reaches the set value. The contoured pressure holding structure of the contoured pressure bag 37 is set to perform contoured pressure holding and limit the patient's arm, maintain the stability of the patient's arm during the puncture operation, and help improve the positioning accuracy of the auxiliary positioning device.

[0039] An axial screw transmission module 40 is installed inside the flip arm 12, and the axial screw transmission module 40 is transmission-connected to an axial shift frame 41, and a longitudinal screw transmission module 42 is installed on the axial shift frame 41. A longitudinal shift seat 44 is transmission-installed on the longitudinal screw transmission module 42, and the ultrasonic imaging probe 13 is fixed on the longitudinal shift seat 44. The scanning direction of the ultrasonic imaging probe 13 is perpendicular to the axis of the puncture needle tube 6.

[0040] By setting the axial screw transmission module 40 and the longitudinal screw transmission module 42, the relative position of the ultrasonic imaging probe 13 and the puncture needle tube 6 can be adjusted in both directions, and when the puncture needle tube 6 is puncturing, the scanning direction of the puncture needle tube 6 and the ultrasonic imaging probe 13 is kept vertical in real time.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in 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.

2. The auxiliary positioning device for vascular interventional puncture according to claim 1, characterized in that: A spring (9) is sleeved on the bellows (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 sterilization 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 sterilization 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).

3. The auxiliary positioning device for vascular interventional puncture according to claim 2, characterized in that: 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).

4. The auxiliary positioning device for vascular interventional puncture according to claim 3, characterized in that: 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).

5. The auxiliary positioning device for vascular interventional puncture according to claim 3, characterized in that: The winding mechanism comprises two first double-headed motors (32) mounted on a pressure 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).

6. The auxiliary positioning device for vascular interventional puncture according to claim 3, characterized in that: 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.

7. The auxiliary positioning device for vascular interventional puncture according to claim 6, 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).

8. The auxiliary positioning device for vascular interventional puncture according to claim 3, 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).

9. The auxiliary positioning device for vascular interventional puncture according to claim 3, 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.

10. The auxiliary positioning device for vascular interventional puncture according to claim 3, 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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