An ultrasound-guided dynamic and static venous blood vessel puncture catheter positioning support

Abstract

The utility model provides a kind of puncture catheterization positioning support applied to the field of ultrasound-guided venous vessel puncture catheterization, including fixed mechanism, fixed mechanism includes protective shell, left clamping plate and right clamping plate are connected with corresponding in protective shell two sides, left clamping plate side is fixedly connected with upper transmission rod, right clamping plate side is fixedly connected with lower transmission rod, upper transmission rod and lower transmission rod are connected by sawtooth structure and gear key, gear is connected with knob by pivot, the mode of fixing ultrasonic probe by knob control gear and thereby drive clamping plate transmission clamping, it can be according to the probe of different types Adjustment clamping diameter size, set locking device on the basis of fixed to prevent probe loosening in working process, simultaneously additional pressure sensor real-time monitoring and feedback clamping exception, design ball hinge joint and the mechanical structure of plastic metal pipe, realize the compound motion of pitching, deflecting, tilting, provide multiple degree of freedom adjustment, additional fixed seat is fixed on operating table or operating table by the mode of screw transmission clamping, free both hands, enhance the flexibility, stability of doctor operation.

Description

Technical Field

[0001] This application relates to the field of ultrasound-guided arterial and venous puncture and catheterization, and in particular to an ultrasound-guided arterial and venous puncture and catheterization positioning stent. Background Technology

[0002] Ultrasound-guided arterial and venous puncture and catheterization is a technique that involves puncturing blood vessels and placing catheters with the assistance of ultrasound imaging technology.

[0003] Current vascular puncture localization requires doctors to hold an ultrasound probe in one hand and a puncture needle in the other for the procedure. Puncture and catheter placement failures are common, and vascular complications (bleeding, hematoma, arteriovenous fistula, pseudoaneurysm, etc.) can occur, increasing patient suffering. Reasons affecting puncture success include: First, the instability of holding the ultrasound probe with one hand and the varying pressure applied to the puncture site affect the accuracy of ultrasound imaging; second, prolonged single-handed ultrasound manipulation during complex punctures can cause hand fatigue, numbness, stiffness, and discomfort; third, some ultrasound-assisted devices are only compatible with specific probe sizes, requiring readjustment of the positioning bracket's position and angle when changing probes, and even slight movements during the puncture can affect accuracy; fourth, most current puncture positioning brackets have limited adjustable angles and poor structural stability, making precise puncture control impossible. Utility Model Content

[0004] To address the aforementioned technical issues, this application provides an ultrasound-guided arterial and venous puncture and catheter placement positioning stent. This stent is compatible with ultrasound probes of different specifications and allows for flexible angle adjustment in space, improving upon the traditional needle insertion method that requires holding the ultrasound probe in one hand and the puncture needle in the other, thus freeing up both hands.

[0005] This utility model relates to an ultrasound-guided arterial and venous puncture and catheter placement positioning stent, comprising a fixing mechanism. The fixing mechanism includes a protective shell, with a left clamp and a right clamp connected to opposite sides of the inner side of the protective shell. An upper drive rod is fixedly connected to one side of the left clamp, and a lower drive rod is fixedly connected to one side of the right clamp. The upper and lower drive rods are connected via a sawtooth structure and a gear key. The gear is connected to a knob via a rotating shaft, and the knob is located on the back of the protective shell. A locking device is also provided on the back of the protective shell, comprising a slider slidably connected to the back of the protective shell, the slider extending into the protective shell. A fixed shaft is connected inside the shell, and a locking block is connected to the fixed shaft. An adjustment mechanism is rotatably connected to the bottom of the protective shell via a connecting rod. The adjustment mechanism includes a rotating component, a limiting groove on one side of the rotating component, a spherical seat slidably connected to the outer wall of the rotating component, a limiting block on one side of the spherical seat, the limiting block engaging with the limiting groove, and a limiting bolt installed on the limiting block. The side of the spherical seat away from the limiting block is threadedly connected to the top end of the plastic metal tube. The bottom of the plastic metal tube is connected to a fixed seat. An adjusting screw is threadedly connected to the bottom of the fixed seat, and a clamping block is fixedly connected to the upper end of the adjusting screw.

[0006] Furthermore, a cushioning element is bonded to the side of the left and right clamps that are close to each other. The cushioning element is made of medical-grade silicone and has a built-in pressure sensor.

[0007] Furthermore, an upper threaded sleeve is fixedly connected to the upper end of the plastic metal tube, and the upper threaded sleeve is threadedly connected to the ball seat by a bolt. A lower threaded sleeve is fixedly connected to the lower end of the plastic metal tube, and the lower threaded sleeve is threadedly connected to the fixed seat.

[0008] Furthermore, a washer is fitted at the connection between the bolt and the threaded sleeve on the spherical seat.

[0009] Furthermore, the fixed base and the clamping block are close to each other, and the contact surfaces with the operating table are covered with pads.

[0010] Furthermore, the protective shell of the fixation mechanism is made of polypropylene plastic, and the left and right clamps are made of carbon fiber material, both of which are lightweight medical materials.

[0011] Compared to existing technologies, the advantages of this application are:

[0012] (1) The ultrasonic probe is clamped and fixed by gear transmission, which is compatible with multiple probe types, simplifies the operation process, and improves the utilization rate of equipment;

[0013] (2) A locking device is used to prevent the ultrasonic probe from loosening, and a pressure sensor is added to monitor and provide feedback pressure in real time;

[0014] (3) The ball joint structure design enables compound movements of up and down, left and right, and tilting, making hand-held adjustment more stable and precise. A plastic metal tube is added for secondary fine adjustment, allowing for all-round spatial adjustment, thereby enhancing the doctor's operational flexibility and puncture efficiency, and improving the patient's comfort and safety.

[0015] (4) Add a base to fix the device on the operating table or operating table. By adjusting the angle and position, the traditional needle insertion method in which the operator needs to hold the puncture needle with one hand and the other hand can be improved, freeing up the hands, facilitating fine-tuning of puncture operations, shortening the operation time, and reducing the risk of accidental injury and complications.

[0016] (5) The plastic metal tube can be adjusted to remove the device from the sterile operating space, avoiding obstruction and blockage of the puncture needle, and reducing contamination during the operation.

[0017] (6) Made of lightweight materials such as carbon fiber and polypropylene, the equipment is lightweight, easy to operate and flexibly adjust, improves equipment compatibility, and is easier to use with other medical equipment.

[0018] (7) The equipment uses a movable connection method for each component, which is convenient for disassembly and installation. The components are flexible, making it easy to clean, disinfect and replace parts, and convenient for inspection and maintenance. Attached Figure Description

[0019] Figure 1 This is a bottom view of the overall structure of this application;

[0020] Figure 2 This is the overall structural elevation view of this application;

[0021] Figure 3 For this application Figure 2 An enlarged view of point A shown;

[0022] Figure 4 This is a schematic diagram of the adaptive clamping of the ultrasonic probe according to an embodiment of this application;

[0023] Figure 5 This is a schematic diagram of the ultrasonic probe locking device according to an embodiment of this application;

[0024] Figure 6 For this application Figure 5 An enlarged view of point A shown;

[0025] Figure 7 This is a schematic diagram of the adjustment mechanism structure according to an embodiment of this application;

[0026] Figure 8 This is a schematic diagram of the fixing base structure according to an embodiment of this application;

[0027] Explanation of the labels in the diagram:

[0028] 1-Fixing mechanism, 101-Protective housing, 102-Gear, 103-Upper transmission rod, 104-Lower transmission rod, 2-Knob, 3-Locking device, 301-Slider, 302-Slide groove, 303-Locking block, 304-Fixing shaft, 4-Left clamping plate, 5-Right clamping plate, 6-Buffer, 7-Connecting rod, 8-Adjusting mechanism, 801-Rotating component, 802-Limiting groove, 803-Spherical seat, 804-Limiting block, 805-Washer, 806-Bolt, 807-Limiting bolt, 9-Upper threaded sleeve, 10-Plastic metal tube, 11-Lower threaded sleeve, 12-Fixing seat, 13-Upper pad, 14-Lower pad, 15-Clamping block, 16-Adjusting screw, 17-Pressure sensor. Detailed Implementation

[0029] The embodiments will be described clearly and completely with reference to the accompanying drawings. All other embodiments obtained by those skilled in the art based on the embodiments in this application without creative effort are within the scope of protection of this application.

[0030] Example 1

[0031] This invention provides an ultrasound-guided arterial puncture and catheter placement positioning stent. (Please refer to...) Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 The fixing mechanism 1 includes a protective shell 101. A left clamping plate 4 and a right clamping plate 5 are snapped onto the inner wall of the protective shell 101. An upper transmission rod 103 is fixedly connected to the left clamping plate 4, and a lower transmission rod 104 is fixedly connected to the right clamping plate 5. The upper transmission rod 103 and the lower transmission rod 104 are partially provided with a sawtooth structure. A gear 102 is connected to the upper transmission rod 103 and the lower transmission rod 104 by a key through the sawtooth structure. The gear 102 is fixedly connected to a knob 2 on one side of the protective shell 101 by a rotating shaft. The fixing mechanism 1 includes a locking device 3. A slide groove 302 is provided on the side of the protective shell 101 near the knob 2. A slider 301 is slidably connected to the outside of the slide groove 302. The slider 301 passes through the slide groove 302 and is fixedly connected to a fixed shaft 304 inside the protective shell 101. The fixed shaft 304 is slidably connected to a locking block 303. A buffer 6 is bonded to the side of the left clamping plate 4 and the right clamping plate 5 that are close to each other. A pressure sensor 17 is built into the buffer 6.

[0032] The slider 301 located on the outer wall of the protective shell 101 can move up and down through the slide groove 302. During implementation, the slider 301 is moved downwards to the bottom, and at the same time, the locking block 303 contacts the serrated structure of the lower transmission rod 104. Rotating the knob 2 clockwise causes the upper transmission rod 103 to move to the right and the lower transmission rod 104 to move to the left through the rotation of the gear 102. This causes the left clamping plate 4 and the right clamping plate 5 to move closer together to clamp and fix the ultrasonic probe. During the leftward movement of the lower transmission rod 104, the locking block 303 remains in contact with the serrated structure of the lower transmission rod 104. Simultaneously, the locking block 303 slides around the fixed shaft 304. After the ultrasonic probe is clamped and fixed, the upper transmission rod 103 and the lower transmission rod 104 stop moving. The locking block 303 abuts against the serrated structure of the lower transmission rod 104 to prevent the lower transmission rod 104 from moving in the opposite direction, thus completing the locking process.

[0033] The gear 102 can be used to fix ultrasound probes of different specifications, and is compatible with a variety of ultrasound probe types. Meanwhile, the buffer 6 located inside the left clamp 4 and right clamp 5 is made of medical-grade silicone material, which can provide better fit and protection for clamping, and has anti-slip and shock absorption properties, reducing friction between the ultrasound probe and the clamp. The buffer 6 has a built-in pressure sensor 17, which can monitor the clamping and locking status of the ultrasound probe in real time, avoiding the risk of inaccurate positioning, puncture failure and increased complications caused by loosening. Similarly, when changing or removing the ultrasound probe, move the slider 301 upward, and the locking block 303 separates from the sawtooth structure of the lower transmission rod 104 to release the locking status. Turn the knob 2 counterclockwise, and the upper transmission rod 103 and the lower transmission rod 104 drive the left clamp 4 and right clamp 5 away from each other.

[0034] Please see Figure 1 , Figure 2 and Figure 7 The fixing mechanism 1 is rotatably connected to the adjusting mechanism 8 via the connecting rod 7. The adjusting mechanism 8 includes a rotating part 801 and a spherical seat 803. A limiting groove 802 is provided on one side of the rotating part 801. A limiting block 804 is provided on the side of the spherical seat 803 near the rotating part 801. A limiting bolt 807 is installed on the limiting block 804. The inner wall of the rotating part 801 is slidably connected to the outer wall of the spherical seat 803. The limiting groove 802 is engaged with the limiting block 804. A bolt 806 is fixed on the side of the spherical seat 803 away from the limiting block 804. A washer 805 is sleeved on the bolt 806. A threaded sleeve 9 is fixedly connected to the plastic metal tube 10. The plastic metal tube 10 is threadedly connected to the spherical seat 803 via the threaded sleeve 9.

[0035] In the current operation, the fixing mechanism 1 and the connecting rod 7 are rotatably connected, and the connecting rod 7 is slidably connected to the adjusting mechanism 8. Due to the directional restriction of the limiting block 804 and the locking of the limiting bolt 807, the connecting rod 7 can complete the directional joint movement through the rotating part 801 and the ball seat 803, realizing the left-right, up-down and tilt adjustment of the ultrasound probe. Compared with hand adjustment, it has better stability and precision, thereby enhancing the flexibility of operation and puncture efficiency. At the same time, the plastic metal tube 10 is threadedly connected to the ball seat 803. The plastic metal tube 10 can supplement the adjustment of the ultrasound probe on the basis of the adjusting mechanism 8, providing multi-degree-of-freedom adjustment, improving the patient's comfort and safety. The plastic metal tube 10 allows the device body to be separated from the puncture needle insertion area, avoiding obstruction or blockage of the needle insertion and reducing surgical contamination. The gasket 805 at the threaded connection between the upper threaded sleeve 9 and the ball seat 803 can increase the stability of the connection and provide cushioning and shock absorption performance.

[0036] Please see Figure 2 , Figure 7 and Figure 8 The end of the plastic metal tube 10 furthest from the adjusting mechanism 8 is fixedly connected

[0037] A lower threaded sleeve 11 is attached, which is threadedly connected to a fixed base 12. The fixed base 12 has a threaded hole, and an adjusting screw 16 is threadedly connected to the fixed base 12 through the threaded hole. A clamping block 15 is fixed to the upper end of the adjusting screw 16, and a lower pad 14 is glued to the upper end of the clamping block 15. An upper pad 13 is glued to the end of the clamping block 15 near the fixed base 12 through threaded transmission. During the operation, the fixed base 12 needs to be fixed on the operating table or surgical table. The adjusting screw 16 is rotated counterclockwise, and the adjusting screw 16 drives the clamping block 15 to rise through threaded transmission to complete the clamping and fixing. The lower pad 14 and the upper pad 13 play a role in anti-slip and reducing friction to prevent loosening. The fixed base 12 improves the traditional needle insertion method that requires holding the ultrasound probe in one hand and the puncture needle in the other, freeing up both hands, making it easier for the operator to make fine adjustments, and reducing the risk of accidental injury and complications to the patient.

[0038] The puncture positioning stent fixing mechanism 1 and the adjustment mechanism 8 are rotatably connected by the connecting rod 7. The adjustment mechanism 8 and the fixing seat 12 are threadedly connected by the plastic metal tube 10, which facilitates disassembly and installation, increases component flexibility, and reduces maintenance and inspection costs. The equipment protective shell 101 is made of polypropylene plastic, and the left clamp 4 and right clamp 5 are made of carbon fiber material, which has the characteristics of light weight and good biocompatibility, improving the compatibility of the equipment and making the puncture positioning stent easier to use in conjunction with other medical equipment and instruments.

[0039] In light of current practical needs, the above-described embodiments adopted in this application are not limited to these. Any changes made within the scope of knowledge possessed by those skilled in the art without departing from the concept of this application still fall within the protection scope of this application.

Claims

1. An ultrasound-guided arterial and venous vascular puncture catheterization positioning support frame comprising a fixing mechanism (1), characterized in that: The fixing mechanism (1) includes a protective shell (101). A left clamping plate (4) and a right clamping plate (5) are connected to the inner sides of the protective shell (101). An upper transmission rod (103) is fixedly connected to one side of the left clamping plate (4), and a lower transmission rod (104) is fixedly connected to one side of the right clamping plate (5). The upper transmission rod (103) and the lower transmission rod (104) are connected by a sawtooth structure and a gear (102) key. The gear (102) is connected to a knob (2) through a rotating shaft. The knob (2) is located on the back of the protective shell (101).

2. The ultrasound-guided arterial and venous vascular puncture catheterization positioning support according to claim 1, characterized in that: The protective shell (101) is also provided with a locking device (3) on the back side. The locking device includes a slider (301) that is slidably connected to the back side of the protective shell (101). The slider (301) extends into the protective shell (101) and is connected to a fixed shaft (304). A locking block (303) is connected to the fixed shaft (304).

3. The ultrasound-guided arterial and venous vascular puncture catheterization positioning support of claim 1, wherein: The bottom of the protective shell (101) is rotatably connected to an adjustment mechanism (8) via a connecting rod (7). The adjustment mechanism (8) includes a rotating component (801), a limiting groove (802) on one side of the rotating component (801), a spherical seat (803) slidably connected to the outer wall of the rotating component (801), a limiting block (804) on one side of the spherical seat (803), the limiting block (804) engaging with the limiting groove (802), and a limiting bolt (807) installed on the limiting block (804).

4. The ultrasound-guided arterial and venous vascular puncture catheterization positioning support of claim 3, wherein: The spherical seat (803) is threaded to the top of the plastic metal tube (10) on the side away from the limiting block (804). The bottom of the plastic metal tube (10) is connected to the fixed seat (12). An adjusting screw (16) is threaded to the bottom of the fixed seat (12). A clamping block (15) is fixedly connected to the upper end of the adjusting screw (16).

5. The ultrasound-guided arterial and venous vascular puncture catheterization positioning support of claim 1, wherein: A buffer element (6) is bonded to the side of the left clamp (4) and the right clamp (5) that are close to each other. The buffer element (6) is made of silicone rubber.

6. The ultrasound-guided arterial and venous vascular puncture catheterization positioning support of claim 5, wherein: The buffer (6) has a built-in pressure sensor (17).

7. The ultrasound-guided arterial and venous vascular puncture catheterization positioning support of claim 4, wherein, The upper end of the plastic metal tube (10) is fixedly connected to an upper threaded sleeve (9), which is threadedly connected to a bolt (806) connected to the end of the ball seat (803). The lower end of the plastic metal tube (10) is fixedly connected to a lower threaded sleeve (11), which is threadedly connected to the top of the fixed seat (12).

8. The ultrasound-guided arterial and venous vascular puncture catheterization positioning support of claim 7, wherein: A washer (805) is fitted onto the side of the bolt (806) near the ball seat (803).

9. The ultrasound-guided arterial and venous puncture and catheter placement positioning stent according to claim 4, characterized in that: An upper pad (13) is bonded to one end of the fixed base (12) and the clamping block (15) that are close to each other, and a lower pad (14) is bonded to the upper surface of the clamping block (15).

10. The ultrasound-guided arterial and venous vascular puncture catheterization positioning support of claim 1, wherein: The protective shell (101) is made of polypropylene plastic material.

11. The ultrasound-guided arterial and venous vascular puncture catheterization positioning support of claim 1, wherein: The left clamp (4) and right clamp (5) are made of carbon fiber material.

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