Vascular intervention anti-deviation puncture device

Abstract

The utility model discloses a vascular intervention anti-deviation puncture device which comprises a support and a puncture mechanism. The upper end of the bracket is fixedly connected with a mounting base; the puncture mechanism comprises a linear guide rail, a first mounting plate, a rotating seat, a puncture needle, a transverse fine adjustment assembly, a needle pushing assembly and a second mounting plate, the linear guide rail is fixedly connected to the front side face of the mounting base, the first mounting plate is fixedly connected to the front side face of a sliding table of the linear guide rail, and the rotating seat is fixedly connected to the lower surface of the first mounting plate; the lower end of the rotating seat is rotationally connected with a second mounting plate, a needle pushing assembly is arranged at the lower end of the second mounting plate, a transverse fine adjustment assembly is arranged at the front end of the needle pushing assembly, and a puncture needle is arranged at the lower end of the transverse fine adjustment assembly. According to the anti-deviation puncture device for vascular intervention, the needle is pushed in a mechanical control mode, and subsequent guide wire insertion is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically a vascular interventional anti-deviation puncture device. Background Technology

[0002] Interventional therapy, guided by medical imaging equipment, involves percutaneous puncture to introduce precision instruments such as needles, specialized catheters, and guidewires into blood vessels for minimally invasive diagnosis and treatment of diseases. Vascular interventional techniques are effective in treating vascular diseases, offering advantages such as minimal trauma, low invasiveness, and rapid recovery. They also possess targeted characteristics, allowing for effective treatment of patients who cannot tolerate surgery, have lost the opportunity for surgery, or are resistant to medication. In some areas, they have already replaced surgery as the preferred treatment method.

[0003] In vascular interventional surgery, a puncture needle is first inserted into a blood vessel, followed by the insertion of a guidewire into the needle and its advancement into the vessel. The needle is then withdrawn, and a vascular sheath is inserted into the vessel guided by the guidewire. All subsequent procedures are performed by inserting various leads through the vascular sheath. When inserting the guidewire, it is necessary to stabilize the puncture needle while guiding the guidewire into the blood vessel. If the hand shakes significantly, the puncture needle may puncture the blood vessel, causing contamination. To address this, we propose a vascular interventional puncture prevention device. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide a vascular interventional anti-deviation puncture device that pushes the needle through mechanical control, which facilitates the subsequent insertion of the guidewire and can effectively solve the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a vascular interventional anti-deviation puncture device, comprising a stent and a puncture mechanism;

[0006] The bracket has a mounting base fixedly connected to its upper end;

[0007] The puncture mechanism includes a linear guide rail, a mounting plate one, a rotating seat, a puncture needle, a lateral fine-tuning component, a needle-pushing component, and a mounting plate two. The front side of the mounting base is fixedly connected to the linear guide rail, and the front side of the slide of the linear guide rail is fixedly connected to the mounting plate one. The lower surface of the mounting plate one is fixedly connected to the rotating seat, and the lower end of the rotating seat is rotatably connected to the mounting plate two. The lower end of the mounting plate two is provided with a needle-pushing component, the front end of the needle-pushing component is provided with a lateral fine-tuning component, and the lower end of the lateral fine-tuning component is provided with a puncture needle. The needle is pushed by mechanical control to facilitate the subsequent insertion of the guide wire.

[0008] Furthermore, it also includes a controller, which is located at the left end of the bracket. The input terminal of the controller is electrically connected to an external power source to control electrical appliances.

[0009] Furthermore, the puncture mechanism also includes a motor. The motor is fixedly connected to the rear side of the lower end of the rotating seat. The output shaft of the motor is fixedly connected to the upper end of the mounting plate two. The input end of the motor is electrically connected to the output end of the controller to realize the adjustment of the puncture needle angle.

[0010] Furthermore, the lateral fine-tuning component includes a base, a servo gripper, a mounting base, a lead screw, and a knob. The lead screw is rotatably connected between the front and rear sides of the lower end of the base. The mounting base is threadedly connected to the middle of the lead screw. The servo gripper is fixedly connected to the lower end of the mounting base. A puncture needle is engaged between the two grippers of the servo gripper. A knob is fixedly sleeved at the front end of the lead screw. The knob is located at the front end of the base. The input end of the servo gripper is electrically connected to the output end of the controller to realize the lateral fine-tuning position of the puncture needle.

[0011] Furthermore, the pusher assembly includes a sliding column seat, an electric push rod, and sliding columns. The upper right side surface of the base is fixedly connected with symmetrically distributed sliding columns. The middle part of the lower surface of the mounting plate two is fixedly connected with a sliding column seat. The sliding columns are slidably connected to the interior of adjacent through holes in the front and rear of the sliding column seat. The lower surface of the mounting plate two is fixedly connected with an electric push rod. The telescopic end of the electric push rod is fixedly connected to the middle part of the right side surface of the base. The input end of the electric push rod is electrically connected to the output end of the controller to realize automatic pusher.

[0012] Furthermore, the push needle assembly also includes a distance sensor. The distance sensor is fixedly connected to the right side of the mounting plate two. The distance sensor corresponds to the left and right positions of the base. The distance sensor is bidirectionally electrically connected to the controller to detect the puncture depth of the puncture needle.

[0013] Furthermore, a displacement sensor is fixedly connected to the upper surface of the second mounting plate. The displacement sensor is bidirectionally electrically connected to the controller to detect the angle of the puncture needle.

[0014] Furthermore, a clamping seat is fixedly connected to the left side of the front side of the mounting base, and an infrared vascular imager is snapped into the front end of the clamping seat. The input end of the infrared vascular imager is electrically connected to an external power source to display the location of blood vessels.

[0015] Furthermore, the controller has a display screen at its rear end, and the input end of the display screen is electrically connected to the output end of the controller to display the position information of the puncture needle in graphic and textual form.

[0016] Furthermore, the lower end of the bracket is fixedly connected with pulleys symmetrically distributed at the four corners to facilitate the movement of the bracket.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows: This vascular interventional anti-deviation puncture device has the following advantages:

[0018] The infrared vascular imager displays the location of blood vessels, and the linear guide rail, motor, and knob work together to adjust the position of the puncture needle. The puncture position of the puncture needle is determined by a displacement sensor and visual inspection to prevent the puncture needle from piercing the blood vessel. The telescopic end of the electric push rod pushes the base to the left to automatically push the needle. The distance sensor detects the depth of the needle push to prevent the puncture needle from piercing the blood vessel. The linear guide rail, motor, push rod, and lead screw all have self-locking properties to fix the position of the puncture needle and prevent large-scale shaking of the puncture needle when the guide wire is inserted later. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0021] Figure 3 This is a partial bottom view of the structure of this utility model.

[0022] In the diagram: 1. Bracket, 2. Mounting base, 3. Puncture mechanism, 31. Linear guide rail, 32. Mounting plate one, 33. Motor, 34. Rotary seat, 35. Puncture needle, 36. Lateral fine adjustment component, 361. Base, 362. Servo gripper, 363. Mounting base, 364. Lead screw, 365. Knob, 37. Needle pusher assembly, 371. Sliding column seat, 372. Electric push rod, 373. Sliding column, 374. Distance sensor, 38. Mounting plate two, 4. Clamping seat, 5. Infrared vascular imager, 6. Controller, 7. Pulley, 8. Displacement sensor, 9. Display screen. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-3 This embodiment provides a technical solution: a vascular interventional anti-deviation puncture device, including a stent 1 and a puncture mechanism 3;

[0025] The bracket 1 has a mounting base 2 fixedly connected to its upper end. A clamping seat 4 is fixedly connected to the left side of the front side of the mounting base 2. An infrared vascular imager 5 is snapped into the front end of the clamping seat 4. The input end of the infrared vascular imager 5 is electrically connected to an external power supply. The lower end of the bracket 1 is fixedly connected to pulleys 7 symmetrically distributed at the four corners. When the infrared vascular imager 5 is turned on, it utilizes the principle that hemoglobin in the blood absorbs near-infrared light more strongly than other tissues, so that the vascular image is displayed on the skin, which makes it easier for the puncture needle 35 to be accurately inserted into the blood vessel.

[0026] The puncture mechanism 3 includes a linear guide rail 31, a mounting plate 32, a rotating seat 34, a puncture needle 35, a lateral fine-tuning component 36, a needle-pushing component 37, and a mounting plate 38. The linear guide rail 31 is fixedly connected to the front side of the mounting base 2. The mounting plate 32 is fixedly connected to the front side of the slide of the linear guide rail 31. The rotating seat 34 is fixedly connected to the lower surface of the mounting plate 32. The mounting plate 38 is rotatably connected to the lower end of the rotating seat 34. The needle-pushing component 37 is located at the lower end of the mounting plate 38. The lateral fine-tuning component 36 is located at the front end of the needle-pushing component 37. The puncture needle 35 is located at the lower end of the lateral fine-tuning component 36. The puncture mechanism 3 also includes a motor 33. The motor 33 is fixedly connected to the rear side of the lower end of the rotating seat 34. The output shaft of the motor 33 is connected to the mounting plate 38. The upper end of the mounting plate 38 is fixedly connected, and the input end of the motor 33 is electrically connected to the output end of the controller 6. A displacement sensor 8 is fixedly connected to the upper surface of the mounting plate 38. The displacement sensor 8 is electrically connected to the controller 6 in both directions. The slide of the linear guide rail 31 drives the mounting plate 38 to descend. The linear guide rail 31 is a lead screw module with self-locking properties to realize the descent of the puncture needle 35. The output shaft of the motor 33 drives the mounting plate 38 to rotate. The motor 33 is a worm gear reducer motor with self-locking properties to realize the position locking of the mounting plate 38. The displacement sensor 8 is parallel to the central axis of the puncture needle 35. The displacement sensor 8 feeds back the angle change information to the controller 6. The controller 6 displays the graphic information on the display screen 9 to realize the precise angle adjustment of the puncture needle 35 when inserted into the blood vessel.

[0027] The lateral fine-tuning component 36 includes a base 361, a servo gripper 362, a mounting base 363, a lead screw 364, and a knob 365. The lead screw 364 is rotatably connected between the front and rear sides of the lower end of the base 361. The mounting base 363 is threadedly connected to the middle of the lead screw 364. The servo gripper 362 is fixedly connected to the lower end of the mounting base 363. The puncture needle 35 is engaged between the two grippers of the servo gripper 362. The knob 365 is fixedly sleeved at the front end of the lead screw 364. The knob 365 is located at the front end of the base 361. The input end of the servo gripper 362 is electrically connected to the output end of the controller 6. Rotating the knob 365 causes the lead screw 364 to rotate. The mounting base 363 slides at the lower end of the base 361, and the servo gripper 362 slides synchronously, thereby realizing the fine-tuning of the lateral position of the puncture needle 35.

[0028] The push pin assembly 37 includes a sliding column base 371, an electric push rod 372, and sliding columns 373. The upper right side surface of the base 361 is fixedly connected to symmetrically distributed sliding columns 373. The middle of the lower surface of the mounting plate 38 is fixedly connected to the sliding column base 371. The sliding columns 373 are slidably connected to the interiors of adjacent through holes in the sliding column base 371. The lower surface of the mounting plate 38 is fixedly connected to the electric push rod 372. The telescopic end of the electric push rod 372 is fixedly connected to the middle of the right side surface of the base 361. The input end of the electric push rod 372 is electrically connected to the output end of the controller 6. The push pin assembly 37 also includes a distance sensor. 374. A distance sensor 374 is fixedly connected to the right side of the mounting plate 38. The distance sensor 374 corresponds to the left and right positions of the base 361. The distance sensor 374 is bidirectionally electrically connected to the controller 6. The electric push rod 372 pushes the base 361 to move to the left. The sliding column 373 slides forward inside the through hole of the sliding column seat 371, making the movement of the base 361 more stable. The distance sensor 374 detects the change in the distance between the base 361 and the distance sensor 374. The detection data is displayed graphically on the display screen 9, which helps the doctor determine the insertion depth of the puncture needle 35 and avoid the puncture needle 35 puncturing the blood vessel.

[0029] The system also includes a controller 6, which is located at the left end of the bracket 1. The input of the controller 6 is electrically connected to an external power source, and a display screen 9 is located at the rear end of the controller 6. The input of the display screen 9 is electrically connected to the output of the controller 6.

[0030] The working principle of the vascular interventional anti-deviation puncture device provided by this utility model is as follows: The support 1 is pushed to the side of the operating table via the pulley 7. The puncture needle 35 is placed between the two jaws of the servo gripper 362. Then, the controller 6 controls the servo gripper 362 to clamp the puncture needle 35. Both jaws of the servo gripper 362 are equipped with clamping molds, which can completely clamp the puncture needle 35. The infrared vascular imager 5 is turned on. The infrared vascular imager 5 utilizes the principle that hemoglobin in the blood absorbs near-infrared light more strongly than other tissues, so that the vascular image is displayed on the skin, which facilitates the accurate insertion of the puncture needle 35 into the blood vessel. The slide of the linear guide rail 31 drives the mounting plate 38 to descend. The linear guide rail 31 is a lead screw module with self-locking properties to realize the descent of the puncture needle 35. The output shaft of the motor 33 drives the mounting plate 38 to rotate. The motor 33 is a worm gear reducer motor with self-locking properties to realize the position locking of the mounting plate 38. The displacement sensor 8 is parallel to the central axis of the puncture needle 35. The displacement sensor 8 feeds back the angle change information to the controller. 6. The controller 6 displays graphics and text on the display screen 9 to achieve precise angle adjustment of the insertion of the puncture needle 35 into the blood vessel. Rotating the knob 365 drives the lead screw 364 to rotate, and the mounting base 363 slides at the lower end of the base 361. The servo gripper 362 slides synchronously to achieve fine adjustment of the lateral position of the puncture needle 35. After visually observing the position of the puncture needle 35 and confirming that the puncture needle 35 is aligned with the blood vessel, to prevent the puncture needle 35 from deviating from the blood vessel, the electric push rod 372 pushes the base 361 to the left, and the sliding column 373 is respectively located in the sliding column seat. The through hole of 371 slides forward, making the movement of the base 361 more stable. The distance sensor 374 detects the change in the distance between the base 361 and the distance sensor 374. The detection data is also displayed on the display screen 9, which makes it easier for doctors to determine the insertion depth of the puncture needle 35 and avoid the puncture needle 35 puncturing the blood vessel. After confirming that the puncture needle 35 is inserted into the blood vessel, the guide wire can be taken out and inserted into the interior of the puncture needle 35. The puncture needle 35 is fixed by the servo gripper 362, which prevents the puncture needle 35 from shaking significantly during the insertion of the guide wire.

[0031] It is worth noting that the controller 6 disclosed in the above embodiments can be an STM32F103RCT6, the linear guide rail 31 can be a KCH17 linear screw module, the motor 33 can be a GM-38L180 miniature worm gear motor, the servo gripper 362 can be an RM-GB miniature servo rotary gripper, the electric actuator 372 can be a JZN miniature electric actuator, the ranging sensor 374 can be an HBM ranging sensor, the displacement sensor 8 can be an LCT543T tilt sensor, and the infrared vascular imager 5 can be a VIVO500S infrared vascular imager. The controller 6 controls the operation of the linear guide rail 31, the motor 33, the servo gripper 362, the electric actuator 372, the ranging sensor 374, the display screen 9, and the displacement sensor 8 using methods commonly used in the prior art.

[0032] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A vascular access device for preventing deviation of a puncture, characterized by: The device comprises a support (1) and a puncture mechanism (3); The support (1) is fixedly connected with a mounting base (2) at its upper end; The puncture mechanism (3) comprises a linear guide rail (31), a mounting plate one (32), a rotating seat (34), a puncture needle (35), a horizontal fine adjustment assembly (36), a needle pushing assembly (37) and a mounting plate two (38). The front side of the mounting base (2) is fixedly connected with the linear guide rail (31). The front side of the sliding table of the linear guide rail (31) is fixedly connected with the mounting plate one (32). The lower surface of the mounting plate one (32) is fixedly connected with the rotating seat (34). The lower end of the rotating seat (34) is rotatably connected with the mounting plate two (38). The lower end of the mounting plate two (38) is provided with the needle pushing assembly (37). The front end of the needle pushing assembly (37) is provided with the horizontal fine adjustment assembly (36). The lower end of the horizontal fine adjustment assembly (36) is provided with the puncture needle (35).

2. The device of claim 1, wherein: A controller (6) is further arranged at the left end of the support (1). The input end of the controller (6) is electrically connected with an external power source.

3. The device of claim 2, wherein: The puncture mechanism (3) further comprises a motor (33). The rear side of the lower end of the rotating seat (34) is fixedly connected with the motor (33). The output shaft of the motor (33) is fixedly connected with the upper end of the mounting plate two (38). The input end of the motor (33) is electrically connected with the output end of the controller (6).

4. The device of claim 2, wherein: The horizontal fine adjustment assembly (36) comprises a base (361), a servo gripper (362), a mounting seat (363), a lead screw (364) and a knob (365). The front and rear sides of the lower end of the base (361) are rotatably connected with the lead screw (364). The middle part of the lead screw (364) is threadedly connected with the mounting seat (363). The lower end of the mounting seat (363) is fixedly connected with the servo gripper (362). The puncture needle (35) is clamped between the two grippers of the servo gripper (362). The front end of the lead screw (364) is fixedly sleeved with the knob (365). The knob (365) is located at the front end of the base (361). The input end of the servo gripper (362) is electrically connected with the output end of the controller (6).

5. The device of claim 4, wherein: The needle pushing assembly (37) comprises a slide column seat (371), an electric push rod (372) and a slide column (373). The right side upper end of the base (361) is fixedly connected with the front and rear symmetrically distributed slide columns (373). The lower surface of the mounting plate two (38) is fixedly connected with the slide column seat (371). The slide columns (373) are respectively slidably connected in the front and rear adjacent through holes of the slide column seat (371). The lower surface of the mounting plate two (38) is fixedly connected with the electric push rod (372). The middle part of the right side of the base (361) is fixedly connected with the telescopic end of the electric push rod (372). The input end of the electric push rod (372) is electrically connected with the output end of the controller (6).

6. The device of claim 5, wherein: The needle pushing assembly (37) further comprises a distance measuring sensor (374). The right side of the mounting plate two (38) is fixedly connected with the distance measuring sensor (374). The distance measuring sensor (374) corresponds to the left and right positions of the base (361). The distance measuring sensor (374) is bidirectionally electrically connected with the controller (6).

7. The anti -deviation puncture device for vascular intervention according to claim 2, characterized in that: The upper surface of the mounting plate two (38) is fixedly connected with a displacement sensor (8), and the displacement sensor (8) is bidirectionally electrically connected with the controller (6).

8. The device of claim 1, wherein: The left side of the front side of the mounting base (2) is fixedly connected with a clamping seat (4), the front end of the clamping seat (4) is clamped with an infrared blood vessel imaging instrument (5), and the input end of the infrared blood vessel imaging instrument (5) is electrically connected with an external power supply.

9. The anti -deviation puncture device for vascular intervention according to claim 2, characterized in that: The rear end of the controller (6) is provided with a display screen (9), and the input end of the display screen (9) is electrically connected with the output end of the controller (6).

10. The anti -deviation puncture device for vascular intervention according to claim 1, characterized in that: The lower end of the support (1) is fixedly connected with four symmetrical pulleys (7).

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