Blood vessel puncture ultrasonic guiding device

Abstract

The invention provides a blood vessel puncture ultrasonic guiding device, and relates to the technical field of blood vessel puncture. The device comprises a probe connecting piece and a guide assembly, the probe connecting piece is used for installing and fixing the detection end of the ultrasonic probe, a clamping cavity with two open ends is formed in the probe connecting piece, and square sleeves are arranged at the front end and the rear end of the probe connecting piece and used for installing the guide assembly. The guiding assembly comprises a sliding guiding base, a connecting clamping base, a sliding clamping base and a self-locking piece, the sliding guiding base is connected with the sliding clamping base through the connecting clamping base, the sliding clamping base is connected with the square sleeve in a sliding mode, a clamping base spring is arranged between the sliding clamping base and the square sleeve, and a locking piece spring is arranged between the self-locking piece and the sliding clamping base. By adopting the transparent or semitransparent material and designing the optical lens, the visual effect in the puncture process is enhanced, the puncture positioning accuracy is improved, the use flexibility and the operation convenience of a doctor are improved, the success rate is favorably improved, and the puncture related complications are reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of vascular puncture, and particularly to a vascular puncture ultrasound guide. Background Art

[0002] Traditional vascular puncture is mainly performed blindly based on anatomical localization. However, in clinical practice, when encountering situations such as anatomical variations and poor vascular conditions, ultrasound-guided vascular puncture gradually reveals its advantages and necessity. When using ultrasound guidance during vascular puncture, not only can the vascular structure and adjacent structures such as nerves and muscles around the blood vessels be clearly seen, but also the blood vessels can be quickly identified, achieving the purposes of improving the puncture success rate, shortening the puncture time, and avoiding serious complications.

[0003] For ultrasound-guided vascular puncture, according to the relationship between the puncture direction and the long axis of the probe, the commonly used puncture methods include in-plane puncture and out-of-plane puncture. In-plane puncture: The puncture direction is in the same plane as the long axis of the blood vessel shown by the long axis of the probe. The advantage of in-plane puncture is that the puncture needle and the punctured blood vessel are displayed simultaneously, and the puncture path of the puncture needle and the course of the blood vessel can be clearly shown. Out-of-plane puncture: The puncture direction is not in the same plane as the long axis of the blood vessel shown by the long axis of the probe, and it is necessary to continuously adjust the section to find the puncture needle.

[0004] However, when performing puncture without a guide, the doctor needs to hold the probe with one hand and observe the screen, while performing the puncture operation with the other hand and correcting the puncture direction and position under the guidance of the image. It is impossible to perform puncture positioning and guidance, and it is easy to cause operation errors with a little carelessness, bringing difficulties to the surgical process. When using the existing metal fixed puncture stent (guide), there is a problem of inflexible operation. After inserting the needle, the angle cannot be adjusted, and the user can only withdraw the needle and re-puncture. At the same time, the metal stent is heavy, which not only easily causes fatigue during use, but also obstructs the line of sight for observation and is inconvenient for observing the puncture needle path. Summary of the Invention

[0005] The present invention aims at the above problems of the prior art and provides a vascular puncture ultrasound guide, which includes a probe connector and a guiding component, and is made of polycarbonate or acrylic material. The guiding component includes a sliding guiding seat, a connecting clamping seat, a sliding clamping seat, and a self-locking piece, which can effectively improve the accuracy, stability, and visualization effect during the puncture process.

[0006] To this end, the technical solution of the present invention is a vascular puncture ultrasonic guide, which includes a probe connecting piece and a guiding component. The probe connecting piece is used for the installation and fixation of the detection end of the ultrasonic probe. The inside of the probe connecting piece is provided with a clamping chamber with openings at both ends. Square sleeves are provided at the front and rear ends of the probe connecting piece, and the square sleeves are used for the installation of the guiding component. The guiding component includes a sliding guiding seat, a connecting clamping seat, a sliding clamping seat and a self-locking piece. The sliding guiding seat is connected to the sliding clamping seat through the connecting clamping seat. The sliding clamping seat is slidably connected to the square sleeve. A clamping seat spring is provided between the sliding clamping seat and the square sleeve. A locking piece spring is provided between the self-locking piece and the sliding clamping seat.

[0007] Further, the probe connecting piece and the guiding component are made of polycarbonate or acrylic material.

[0008] Further, the probe connecting piece includes a connecting frame. Pressing plates are provided on the left and right sides of the connecting frame. A plurality of pressing blocks are provided on the lower surface of the pressing plates. A clamping plate is fixedly provided on the upper surface of the pressing plates. A clamping table is provided inside the clamping plate.

[0009] Further, the inside of the square sleeve is a hollow structure. A second clamping seat spring column is provided on the inner end surface of the square sleeve. An opening is provided on the outer end surface of the square sleeve. A clamping seat sliding groove is provided on the upper end surface of the square sleeve. A scale is provided on one side of the clamping seat sliding groove. A self-locking groove is provided on the lower end surface of the square sleeve. The self-locking groove includes a locking groove and an unlocking groove.

[0010] Further, the upper end of the sliding guiding seat is provided with an upper plane and an upper inclined surface. The lower end of the sliding guiding seat is provided with a lower inclined surface. A needle guiding port is provided on the upper inclined surface. A needle guiding opening groove is provided between the upper inclined surface and the lower inclined surface. A lens is provided on the upper plane.

[0011] Further, a needle guiding cylindrical surface is provided at the closed end of the needle guiding opening groove. The needle guiding cylindrical surface is perpendicular to the upper inclined surface. The inclination angle of the upper inclined surface is 45 - 60 degrees. The inclination angle of the lower inclined surface is 5 - 10 degrees.

[0012] Further, the connecting clamping seat is used for installing the sliding guiding seat. Upper and lower inserting strips are provided on the inner side surface of the sliding guiding seat. A clamping male head is provided at one end of the connecting clamping seat. Upper and lower inserting grooves are provided at the other end of the connecting clamping seat.

[0013] Further, the sliding clamping seat is used for installing the sliding guiding seat and the connecting clamping seat and is connected to the square sleeve. A clamping female head is provided at one end of the sliding clamping seat. A clamping seat spring column is provided at the other end of the sliding clamping seat. A clamping seat spring is installed between the clamping seat spring column and the second clamping seat spring column inside the square sleeve. A clamping seat sliding column is provided on the upper end surface of the sliding clamping seat. The clamping seat sliding column is installed in the clamping seat sliding groove on the upper end surface of the square sleeve. A locking piece spring hole is provided on the upper end surface of the sliding clamping seat. A second locking piece spring column is provided at the bottom of the locking piece spring hole. A locking piece spring is installed on the second locking piece spring column.

[0014] Furthermore, a lock piece spring post is provided on the upper end surface of the self-locking piece, and a lock piece sliding post is provided on the lower end surface of the self-locking piece. The lock piece spring post is installed in the lock piece spring hole, and a lock piece spring is installed between the lock piece spring post and the second lock piece spring post.

[0015] Furthermore, the sliding guiding seat is a split structure. The sliding guiding seat includes a left guiding seat, a right guiding seat and an adjusting knob. The left guiding seat and the right guiding seat are respectively inserted into the connecting card seat, and the distance between the left guiding seat and the right guiding seat is adjusted by the adjusting knob.

[0016] The beneficial effects of the present invention are as follows: through precise thread adjustment and the split modular design of the left guiding seat and the right guiding seat, precise adjustment of the guide needle opening groove is achieved to adapt to puncture needles of different diameters and lengths; through the locking and unlocking design of the guiding component, different usage scenarios of the ultrasonic guiding device are satisfied. When the guiding component is in the locked state and in-plane puncture operation is performed, it is necessary to move the ultrasonic guiding device and the ultrasonic probe to adjust the position of the puncture point. When the guiding component is in the unlocked state, by adjusting the position of the guiding component in the square sleeve, the position of the puncture point can be adjusted, and the position of the puncture point is displayed through the scale table; transparent or semi-transparent materials are used and an optical lens is designed to enhance the visualization effect during the puncture process, ensuring that doctors can clearly observe the puncture needle path; thereby improving the accuracy of puncture positioning, enhancing the flexibility of use and the operation convenience of doctors, reducing the work pressure of medical staff, contributing to improving the success rate, and reducing puncture-related complications. Description of the Drawings

[0017] Figure 1 is the overall structural schematic diagram of the present invention;

[0018] Figure 2 is Figure 1 the front view of

[0019] Figure 3 is the cross-sectional view at the guiding component;

[0020] Figure 4 is the structural schematic diagram of the probe connecting piece;

[0021] Figure 5 is is Figure 4 the partial structural cross-sectional view of

[0022] Figure 6 is the exploded view of the guiding component;

[0023] Figure 7 is the structural schematic diagram of the sliding guiding seat;

[0024] Figure 8 is the structural schematic diagram of the connecting card seat;

[0025] Figure 9 It is a schematic structural diagram of a sliding card seat;

[0026] Figure 10 It is a schematic structural diagram of a self-locking piece;

[0027] Figure 11 It is a schematic structural diagram of a split-type sliding guide seat;

[0028] Figure 12 It is a schematic structural diagram of a left guide seat;

[0029] Figure 13 It is a schematic structural diagram of a right guide seat;

[0030] Figure 14 It is a schematic structural diagram of an adjustment knob;

[0031] Figure 15 It is a schematic principle diagram of determining the position of the puncture point.

[0032] Explanation of symbols in the figure:

[0033] 1. Probe connecting piece; 11. Connecting frame; 111. Clamping chamber; 12. Pressing plate; 121. Pressing block; 13. Clamping plate; 131. Clamping platform; 14. Square sleeve; 141. Card seat sliding groove; 142. Self-locking groove; 1421. Locking groove; 1422. Unlocking groove; 1423. Guiding inclined plane; 1424. Unlocking inclined plane; 143. Scale table; 144. Second card seat spring column; 2. Guiding component; 21. Sliding guide seat; 2101. Upper plane; 2102. Upper inclined plane; 2103. Lower inclined plane; 211. Needle guiding opening groove; 212. Needle guiding port; 213. Needle guiding cylindrical surface; 2131. Puncture point; 214. Upper inserting strip; 215. Lower inserting strip; 216. Lens; 22. Connecting card seat; 221. Clamping male head; 222. Upper inserting slot; 223. Lower inserting slot; 23. Sliding card seat; 231. Clamping female head; 232. Card seat spring column; 233. Locking piece spring hole; 234. Second locking piece spring column; 235. Card seat sliding column; 24. Card seat spring; 241. Clamping female seat; 242. Card seat spring column; 243. Locking piece spring hole; 244. Second locking piece spring column; 25. Self-locking piece; 251. Locking piece spring column; 252. Locking piece sliding column; 26. Locking piece spring; 201. Left guide seat; 2011. Card seat connecting strip; 202. Right guide seat; 2021. Card seat connecting groove; 203. Adjustment knob; 2031. Threaded shaft; 2032. Retaining piece; 2033. Wrench. Specific implementation manners

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0035] Embodiment 1

[0036] As Figures 1-10 shown, the present invention provides a vascular puncture ultrasound guide, which includes a probe connector 1 and a guiding assembly 2. The probe connector 1 and the guiding assembly 2 are made of transparent or translucent materials, which can enable doctors to observe the guiding path of the puncture needle during the operation. For example, transparent materials such as polycarbonate or acrylic are used to enhance the observation field of view.

[0037] The probe connector 1 is used for the installation and fixation of the detection end of the ultrasound probe. The guiding assembly 2 is used for guiding the puncture needle, including guiding methods such as the puncture point, puncture angle, and puncture path. The ultrasound probe selects a linear array, high-frequency (greater than 7 MHZ), and appropriately sized probe. The ultrasound guide of the present invention is attached to the patient's skin together with the detection end of the ultrasound probe, and the puncture needle is guided through the guiding assembly 2 into the patient's body, so as to cooperate with the vascular ultrasound probe to complete the entire puncture process, thereby improving the accuracy, stability, and visualization effect during the puncture process.

[0038] The probe connector 1 includes a connecting frame 11. The inside of the connecting frame 11 is provided with a clamping chamber 111 with openings at both ends, that is, the upper and lower ends of the clamping chamber 111 are provided with openings. The clamping chamber 111 is used for the installation of the detection end of the ultrasound probe, and the shape of the clamping chamber 111 matches the detection end of the ultrasound probe.

[0039] On the left and right sides of the connecting frame 11, there are pressing plates 12. The pressing plates 12 are used to attach to the patient's skin together with the detection end of the ultrasound probe. To ensure the effectiveness of the attachment and prevent left and right sliding, a plurality of pressing blocks 121 are provided on the lower surface of the pressing plate 12, and the upper surface of the pressing block 121 is square, circular, or other regular shapes.

[0040] A clamping plate 13 is fixedly provided on the upper surface of the pressing plate 12. A clamping platform 131 is provided inside the clamping plate 13. The clamping plate 13 is clamped and fixed to the ultrasound probe through the clamping platform 131. To ensure the reliability of the clamping, a reinforcing plate is provided between the clamping plate 13, the pressing plate 12, and the connecting frame 11 to improve the strength of the clamping plate 13 through the reinforcing plate.

[0041] The front and rear ends of the connecting frame 11 are provided with square sleeves 14. The square sleeves 14 are used to guide the installation of the component 2. The interior of the square sleeves 14 is a hollow structure. The inner end face of the square sleeves 14 is provided with second card seat spring posts 144. The outer end face of the square sleeves 14 is provided with an opening, and the guiding component 2 is installed through this opening.

[0042] On the upper end face of the square sleeve 14, there is a card seat chute 141. On one side of the card seat chute 141, there is a scale 143. On the lower end face of the square sleeve 14, there is a self-locking groove 142. The self-locking groove 142 includes a locking groove 1421 and an unlocking groove 1422. The locking groove 1421 and the unlocking groove 1422 are connected together. At the connection of the locking groove 1421 and the unlocking groove 1422, there is a guiding inclined surface 1423. At the end of the unlocking groove 1422, there is an unlocking inclined surface 1424.

[0043] The guiding component 2 includes a sliding guiding seat 21, a connecting card seat 22, a sliding card seat 23 and a self-locking piece 25. The sliding guiding seat 21 is connected to the sliding card seat 23 through the connecting card seat 22. The sliding card seat 23 is slidably connected to the square sleeve 14. There is a card seat spring 24 between the sliding card seat 23 and the square sleeve 14. There is a lock piece spring 26 between the self-locking piece 25 and the sliding card seat 23.

[0044] On the upper end of the sliding guiding seat 21, there are an upper plane 2101 and an upper inclined surface 2102. On the lower end of the sliding guiding seat 21, there is a lower inclined surface 2103. On the upper inclined surface 2102, there is a guide pin opening 212. Between the upper inclined surface 2102 and the lower inclined surface 2103, there is a guide pin opening groove 211. The guide pin opening groove 211 is used to place the puncture needle and guide the puncture needle. The open end of the guide pin opening groove 211 is located on the upper inclined surface 2102, the lower inclined surface 2103 and the outer side surface of the sliding guiding seat 21. The closed end of the guide pin opening groove 211 is provided with a guide pin cylindrical surface 213. The guide pin cylindrical surface 213 is perpendicular to the upper inclined surface 2102. The inclination angle of the upper inclined surface 2102 is A, that is, the included angle between the central axis of the guide pin cylindrical surface 213 and the horizontal plane is A. The inclination angle of the lower inclined surface 2103 is B. The size of the included angle A is 45 - 60 degrees, and the size of the inclination angle B is 5 - 10 degrees. As an optimal solution, the size of the included angle A is 45 degrees, and the size of the inclination angle B is 8 degrees.

[0045] The guide pin cylindrical surface 213 is used to guide the puncture needle. The intersection point of the lower end of the guide pin cylindrical surface 213 and the patient's skin is the puncture point 2131. When the puncture needle punctures along the direction of the guide pin cylindrical surface 213, the puncture angle of the puncture needle is equal to the included angle A between the central axis of the guide pin cylindrical surface 213 and the horizontal plane. If the needle insertion angle is not appropriate, rotating the puncture needle in the guide pin opening groove 211 around the puncture point 2131 towards the direction of the lower inclined surface 2103 can independently adjust the puncture angle of the puncture needle.

[0046] The inclination angle of the lower inclined surface 2103 is designed to tighten the skin at the fitting position when the sliding guide seat 21 fits the patient's skin, that is, to tighten the skin of the target puncture area, facilitating the completion of the puncture.

[0047] In order to more easily observe the puncture path, a lens 216 is provided on the upper plane 2101 of the sliding guide seat 21. The lens 216 is a magnifying glass. Through the magnifying effect of the lens 216, the puncture path can be better observed to ensure the accuracy of the puncture.

[0048] Upper insertion strips 214 and lower insertion strips 215 are provided on the inner side surface of the sliding guide seat 21. The upper insertion strips 214 and the lower insertion strips 215 are used for the installation and disassembly of the sliding guide seat 21, facilitating the installation and replacement of the sliding guide seat 21. The shapes of the upper insertion strips 214 and the lower insertion strips 215 are T-shaped or triangular. Through the common positioning of the upper insertion strips 214 and the lower insertion strips 215, the installation accuracy and reliability are ensured.

[0049] The connection card seat 22 is used for installing the sliding guide seat 21. A male connection head 221 is provided at one end of the connection card seat 22. The shape of the male connection head 221 is T-shaped. Upper insertion slots 222 and lower insertion slots 223 are provided at the other end of the connection card seat 22. The shapes of the upper insertion slots 222 and the lower insertion slots 223 respectively match the shapes of the upper insertion strips 214 and the lower insertion strips 215. The upper insertion slots 222 and the lower insertion slots 223 are through slots, or one end of the upper insertion slots 222 and the lower insertion slots 223 is open and the other end is closed.

[0050] The sliding card seat 23 is used for installing the sliding guide seat 21 and the connection card seat 22 and is connected to the square sleeve 14. A female connection head 231 is provided at one end of the sliding card seat 23. The shape of the female connection head 231 matches the shape of the male connection head 221. During installation, the female connection head 231 is snapped together with the male connection head 221 of the connection card seat 22.

[0051] A card seat spring post 232 is provided at the other end of the sliding card seat 23. A card seat spring 24 is installed between the card seat spring post 232 and the second card seat spring post 144 in the square sleeve 14. The card seat spring 24 is used for the compression and reset of the sliding card seat 23.

[0052] A card seat sliding post 235 is provided on the upper end surface of the sliding card seat 23. The card seat sliding post 235 is installed in the card seat sliding groove 141 on the upper end surface of the square sleeve 14 and is slidably connected to the card seat sliding groove 141. Since a scale 143 is provided on one side of the card seat sliding groove 141, the position of the card seat sliding post 235 in the card seat sliding groove 141 can be indicated through the scale 143.

[0053] The upper end surface of the sliding card seat 23 is provided with a lock piece spring hole 233. The bottom of the lock piece spring hole 233 is provided with a second lock piece spring post 234, and a lock piece spring 26 is installed on the second lock piece spring post 234.

[0054] The upper end surface of the self-locking piece 25 is provided with a lock piece spring post 251, and the lower end surface of the self-locking piece 25 is provided with a lock piece sliding post 252. The lock piece spring post 251 is installed in the lock piece spring hole 233. The lock piece spring 26 is installed between the lock piece spring post 251 and the second lock piece spring post 234, and the lock piece spring 26 provides a downward spring pressure for the self-locking piece 25.

[0055] After the guiding assembly 2 is installed, the sliding guiding seat 21, the connecting card seat 22 and the sliding card seat 23 of the guiding assembly 2 are connected together in sequence. The self-locking piece 25 is installed in the lock piece spring hole 233 of the sliding card seat 23 through the lock piece spring post 251. The lock piece spring 26 between the lock piece spring post 251 and the second lock piece spring post 234 provides a downward elastic force for the self-locking piece 25. The connecting card seat 22 and the sliding card seat 23 are installed in the square sleeve 14 of the probe connecting piece 1. The card seat sliding post 235 of the sliding card seat 23 is installed in the card seat sliding groove 141 on the upper end surface of the square sleeve 14 and is slidably connected to the card seat sliding groove 141. The card seat spring post 232 of the sliding card seat 23 and the second card seat spring post 144 in the square sleeve 14 provide a compression and reset elastic force for the sliding card seat 23 through the card seat spring 24.

[0056] When the guiding assembly 2 is in the unlocked state, the card seat sliding post 235 of the sliding card seat 23 slides in the card seat sliding groove 141 of the square sleeve 14. The lock piece sliding post 252 of the self-locking piece 25 is slidably connected to the lower end surface of the square sleeve 14 under the pressure of the lock piece spring 26. By sliding, the position of the sliding card seat 23 in the sliding card seat 23 is adjusted, and further the horizontal distance between the guide needle opening groove 211 and the guide needle cylindrical surface 213 of the sliding guiding seat 21 relative to the target blood vessel is adjusted, that is, the position of the puncture point 2131 is adjusted. At this time, the position of the card seat sliding post 235 in the card seat sliding groove 141 is indicated by the scale 143 on one side of the card seat sliding groove 141. If the scale value of the scale 143 is designed as the distance from the puncture point 2131 to the center point of the probe connecting piece 1, then the position of the puncture point 2131 can be indicated by the scale 143.

[0057] When the guiding component 2 switches from the unlocked state to the locked state, the sliding clamping seat 23 is moved towards the inner end face of the square sleeve 14. When the locking piece sliding column 252 of the self-locking piece 25 slides into the locking groove 1421, the guiding component 2 is locked through the locking piece sliding column 252 and the locking groove 1421. When the guiding component 2 switches from the locked state to the unlocked state, the sliding clamping seat 23 is continuously moved towards the inner end face of the square sleeve 14. When the locking piece sliding column 252 contacts the guiding inclined surface 1423, under the guiding action of the guiding inclined surface 1423, the locking piece sliding column 252 slides from the locking groove 1421 into the unlocking groove 1422. By moving the sliding clamping seat 23 in the opposite direction of the inner end face of the square sleeve 14, the locking piece sliding column 252 slides out from the unlocking inclined surface 1424 at the end of the unlocking groove 1422, completing the unlocking of the guiding component 2. After the guiding component 2 is unlocked, under the limiting action of the clamping seat sliding column 235 and the clamping seat sliding groove 141, the guiding component 2 can be freely adjusted in the square sleeve 14, that is, the position of the puncture point 2131 is adjusted, and the position of the puncture point 2131 is indicated by the scale 143.

[0058] Embodiment 2

[0059] As Figures 11-14 shown, based on Embodiment 1, the sliding guiding seat 21 in this embodiment is a split structure. The sliding guiding seat 21 includes a left guiding seat 201, a right guiding seat 202, and an adjusting knob 203. The left guiding seat 201 and the right guiding seat 202 are respectively inserted into the connecting clamping seat 22, and the distance between the left guiding seat 201 and the right guiding seat 202 is adjusted through the adjusting knob 203 to adapt to puncture needles of different diameters, increasing the adaptability of the product.

[0060] A clamping seat connecting strip 2011 is provided inside the left guiding seat 201, and the needle guiding column surface 213 is designed on the clamping seat connecting strip 2011. A clamping seat connecting groove 2021 is provided inside the right guiding seat 202, and the shape of the clamping seat connecting groove 2021 matches that of the clamping seat connecting strip 2011. When the left guiding seat 201 and the right guiding seat 202 approach each other, the clamping seat connecting strip 2011 is inserted into the seat connecting groove 2021.

[0061] The adjustment knob 203 includes a threaded shaft 2031, a retaining plate 2032 and a wrench 2033. The adjustment knob 203 is connected to the left guide base 201 through the threaded shaft 2031. The adjustment knob 203 is rotatably connected to the right guide base 202 through the retaining plate 2032. When the wrench 2033 is rotated clockwise, the threaded shaft 2031 screws into the left guide base 201, and the retaining plate 2032 pushes the right guide base 202 closer to the left guide base 201, reducing the distance between the left guide base 201 and the right guide base 202 to adapt to a puncture needle with a smaller diameter. When the wrench 2033 is rotated counterclockwise, the threaded shaft 2031 screws out of the left guide base 201, and the retaining plate 2032 pushes the right guide base 202 to move in the opposite direction of the left guide base 201, increasing the distance between the left guide base 201 and the right guide base 202 to adapt to a puncture needle with a larger diameter.

[0062] A vascular puncture ultrasonic guide of the present invention realizes precise adjustment of the needle guiding opening groove 211 through precise thread adjustment and the split modular design of the left guide base 201 and the right guide base 202 to adapt to puncture needles with different diameters and lengths; through the locking and unlocking design of the guiding component 2 to meet different usage scenarios of the ultrasonic guide. When the guiding component 2 is in the locked state and an in-plane puncture operation is performed, it is necessary to move the ultrasonic guide and the ultrasonic probe to adjust the position of the puncture point. When the guiding component 2 is in the unlocked state, by adjusting the position of the guiding component 2 in the square sleeve 14, the position of the puncture point can be adjusted, and the position of the puncture point 2131 is displayed through the scale 143; transparent or semi-transparent materials are used and an optical lens is designed to enhance the visualization effect during the puncture process to ensure that the doctor can clearly observe the puncture needle path; thereby improving the accuracy of puncture positioning, enhancing the flexibility of use and the convenience of the doctor's operation, reducing the work pressure of medical staff, contributing to improving the success rate, and reducing puncture-related complications.

[0063] A method for using a vascular puncture ultrasonic guide specifically includes the following steps:

[0064] 1. Perform strict aseptic disinfection and draping on the patient's puncture area, use sterile coupling agent, avoid contaminating the sterile area due to repeated position movement during the operation, and complete the preoperative preparation.

[0065] 2. Snap-connect the ultrasonic guide of the present invention with the ultrasonic probe and attach it to the patient's puncture area.

[0066] 3. Puncture in the selected plane. The puncture direction is in the same plane as the long axis of the blood vessel shown by the long axis of the ultrasonic probe. The puncture needle and the punctured blood vessel are displayed simultaneously, and the puncture path of the puncture needle and the course of the blood vessel can be clearly shown. Check the blood vessel structure and the adjacent structures around the blood vessel through the ultrasonic probe, select a puncture needle with appropriate diameter and length, adjust the distance between the left guide base 201 and the right guide base 202, and select the position of the puncture point and the puncture angle for puncture.

[0067] When the guiding assembly 2 is adjusted to the locked state, check the blood vessel structure through the ultrasonic probe, and adjust the position of the puncture point by moving the positions of the ultrasonic probe and the ultrasonic guide. Guide the puncture needle through the needle guiding opening groove 211, which ensures the stability and accuracy of the puncture, and can adjust the puncture angle in the needle guiding opening groove 211, improving the flexibility of use and the convenience of the doctor's operation.

[0068] When the guiding assembly 2 is adjusted to the unlocked state, check the blood vessel structure through the ultrasonic probe. By adjusting the position of the guiding assembly 2 in the square sleeve 14, the position of the puncture point can be adjusted, and the position of the puncture point 2131 is displayed through the scale 143. Guide the puncture needle through the needle guiding opening groove 211, ensuring the stability and accuracy of the puncture.

[0069] As Figure 15 shown, when the guiding assembly 2 is adjusted to the unlocked state, the method for determining the position of the puncture point is as follows: Detect the depth d of the blood vessel through the ultrasonic probe. According to the angle A between the central axis of the needle guiding cylinder surface 213 and the horizontal plane, calculate the position of the puncture point. The distance L from the puncture point to the midpoint of the probe connecting piece 1 is L = d / tanA. When the size of the angle A is 45 degrees, L = d. According to the calculated distance L and in combination with the scale value of the scale 143 (the scale value of the scale 143 is designed as the distance from the puncture point 2131 to the center point of the probe connecting piece 1), adjust the position of the guiding assembly 2 in the square sleeve 14, that is, the position of the clamping seat sliding column 235 in the clamping seat sliding groove 141, and the position of the puncture point can be adjusted and determined. At this time, when the puncture needle enters along the needle guiding cylinder surface 213, the puncture needle just enters the target blood vessel. The ultrasonic guide of the present invention improves the convenience of the doctor's operation, enables successful puncture in one time, thereby improving the accuracy of puncture positioning, reducing the work pressure of medical staff, greatly increasing the success rate, and reducing puncture-related complications.

[0070] However, as described above, only the specific embodiments of the present invention are given, and the scope of implementation of the present invention cannot be limited thereby. Therefore, the replacement of equivalent components or the equivalent changes and modifications made according to the scope of protection of the present invention patent shall still fall within the scope covered by the claims of the present invention.

Claims

1. A vascular puncture ultrasound guide, characterized in that, It includes a probe connector and a guiding assembly. The probe connector is used for the installation and fixation of the detection end of an ultrasonic probe. The inside of the probe connector is provided with a clamping chamber with openings at both ends. Square sleeves are provided at the front and rear ends of the probe connector, and the square sleeves are used for the installation of the guiding assembly. The guiding assembly includes a sliding guiding seat, a connecting clamping seat, a sliding clamping seat, and a self-locking piece. The sliding guiding seat is connected to the sliding clamping seat through the connecting clamping seat. The sliding clamping seat is slidably connected to the square sleeve. A clamping seat spring is provided between the sliding clamping seat and the square sleeve. A lock piece spring is provided between the self-locking piece and the sliding clamping seat.

2. The vascular puncture ultrasound guide according to claim 1, wherein The probe connector and the guiding assembly are made of polycarbonate or acrylic materials.

3. The vascular puncture ultrasound guide according to claim 1, wherein, The probe connector includes a connecting frame. Pressing plates are provided on the left and right sides of the connecting frame. A plurality of pressing blocks are provided on the lower surface of the pressing plate. A clamping plate is fixedly provided on the upper surface of the pressing plate, and a clamping platform is provided inside the clamping plate.

4. The vascular puncture ultrasound guide according to claim 1, characterized in that, The inside of the square sleeve is a hollow structure. A second clamping seat spring column is provided on the inner end surface of the square sleeve. An opening is provided on the outer end surface of the square sleeve. A clamping seat sliding groove is provided on the upper end surface of the square sleeve. A scale is provided on one side of the clamping seat sliding groove. A self-locking groove is provided on the lower end surface of the square sleeve. The self-locking groove includes a locking groove and an unlocking groove.

5. The vascular puncture ultrasound guide according to claim 1, characterized in that, The upper end of the sliding guiding seat is provided with an upper plane and an upper inclined surface. The lower end of the sliding guiding seat is provided with a lower inclined surface. A guide needle opening is provided on the upper inclined surface. A guide needle opening groove is provided between the upper inclined surface and the lower inclined surface. A lens is provided on the upper plane.

6. The vascular puncture ultrasound guide according to claim 5, characterized in that, The closed end of the guide needle opening groove is provided with a guide needle cylindrical surface, and the guide needle cylindrical surface is perpendicular to the upper inclined surface. The inclination angle of the upper inclined surface is 45-60 degrees, and the inclination angle of the lower inclined surface is 5-10 degrees.

7. The vascular puncture ultrasound guide according to claim 1, characterized in that, The connecting clamping seat is used for installing the sliding guiding seat. Upper and lower inserting strips are provided on the inner side surface of the sliding guiding seat. A clamping male head is provided at one end of the connecting clamping seat. Upper and lower inserting grooves are provided at the other end of the connecting clamping seat.

8. The vascular puncture ultrasound guidance device according to claim 7, characterized in that, The sliding clamping seat is used for installing the sliding guiding seat and the connecting clamping seat and is connected to the square sleeve. A clamping female head is provided at one end of the sliding clamping seat. A clamping seat spring column is provided at the other end of the sliding clamping seat. A clamping seat spring is installed between the clamping seat spring column and the second clamping seat spring column inside the square sleeve. A clamping seat sliding column is provided on the upper end surface of the sliding clamping seat, and the clamping seat sliding column is installed in the clamping seat sliding groove on the upper end surface of the square sleeve. A lock piece spring hole is provided on the upper end surface of the sliding clamping seat, and a second lock piece spring column is provided at the bottom of the lock piece spring hole. A lock piece spring is installed on the second lock piece spring column.

9. The vascular puncture ultrasound guide according to claim 8, characterized in that, A lock piece spring column is provided on the upper end surface of the self-locking piece. A lock piece sliding column is provided on the lower end surface of the self-locking piece. The lock piece spring column is installed in the lock piece spring hole, and the lock piece spring is installed between the lock piece spring column and the second lock piece spring column.

10. A vascular puncture ultrasound guide according to any one of claims 1-9, characterized in that, The sliding guiding seat is a split structure. The sliding guiding seat includes a left guiding seat, a right guiding seat, and an adjusting knob. The left guiding seat and the right guiding seat are respectively inserted into the connecting clamping seat, and the distance between the left guiding seat and the right guiding seat is adjusted through the adjusting knob.

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