Vascular puncture ultrasound guide

Abstract

The application provides a vascular puncture ultrasonic guide device, and relates to the technical field of vascular puncture.The device comprises a probe connecting piece and a guide assembly, the probe connecting piece is used for mounting and fixing a detection end of an ultrasonic probe, an open-jawed clamping chamber is arranged in the probe connecting piece, square sleeves are arranged at the front and back ends of the probe connecting piece, the square sleeves are used for mounting the guide assembly, the guide assembly comprises a sliding guide seat, a connecting clasp, a sliding clasp and a self-locking piece, the sliding guide seat is connected with the sliding clasp through the connecting clasp, the sliding clasp is slidingly connected with the square sleeves, a clasp spring is arranged between the sliding clasp and the square sleeves, and a lock piece spring is arranged between the self-locking piece and the sliding clasp.The transparent or semi-transparent material and the designed optical lens can enhance the visualization effect in the puncture process, improve the accuracy of puncture positioning, improve the flexibility of use and the operation convenience of doctors, help to improve the success rate and reduce puncture-related complications.

Description

Technical Field

[0001] This invention relates to the field of vascular puncture technology, and in particular to an ultrasound guide for vascular puncture. Background Technology

[0002] Traditional vascular puncture is mainly performed blindly based on anatomical location. However, in clinical practice, when encountering anatomical variations or poor vascular conditions, ultrasound-guided vascular puncture has gradually shown its advantages and necessity. Using ultrasound guidance during vascular puncture can not only clearly see the vascular structure and adjacent structures such as nerves and muscles around the blood vessels, but also quickly identify blood vessels, thereby improving the success rate of puncture, shortening the puncture time, and avoiding serious complications.

[0003] Ultrasound-guided vascular puncture, based on the relationship between the puncture direction and the long axis of the probe, commonly uses two puncture methods: in-plane puncture and out-of-plane puncture. In-plane puncture: The puncture direction and the long axis of the vessel displayed by the probe are in the same plane. The advantage of in-plane puncture is that the puncture needle and the punctured vessel are displayed simultaneously, clearly showing the puncture path and the course of the vessel. Out-of-plane puncture: The puncture direction and the long axis of the vessel displayed by the probe are not in the same plane, requiring continuous adjustment of the cross-section to locate the puncture needle.

[0004] However, when performing punctures without a guide, the doctor needs to hold the probe with one hand and observe the screen while performing the puncture with the other, correcting the puncture direction and location under image guidance. This lack of puncture positioning and guidance makes it easy to make mistakes, complicating the surgical procedure. Using existing metal-fixed puncture stents (guides) presents problems with inflexibility; the angle cannot be adjusted after needle insertion, forcing the user to withdraw the needle and repeat the puncture. Furthermore, the heavy weight of the metal stent not only causes fatigue but also obstructs the view, making it difficult to observe the puncture needle path. Summary of the Invention

[0005] To address the problems of the prior art, this invention provides a vascular puncture ultrasound guide, which includes a probe connector and a guide assembly, made of polycarbonate or acrylic material. The guide assembly includes a sliding guide seat, a connecting seat, a sliding seat, and a self-locking plate, which can effectively improve the accuracy, stability, and visualization effect during the puncture process.

[0006] Therefore, the technical solution of the present invention is a vascular puncture ultrasound guide, which includes a probe connector and a guide assembly. The probe connector is used for mounting and fixing the detection end of the ultrasound probe. The probe connector has a snap-fit ​​chamber with openings at both ends inside. The front and rear ends of the probe connector are provided with square sleeves. The square sleeves are used for mounting the guide assembly. The guide assembly includes a sliding guide seat, a connecting snap seat, a sliding snap seat and a self-locking plate. The sliding guide seat is connected to the sliding snap seat through the connecting snap seat. The sliding snap seat is slidably connected to the square sleeve. A snap seat spring is provided between the sliding snap seat and the square sleeve. A locking plate spring is provided between the self-locking plate and the sliding snap seat.

[0007] Furthermore, the probe connectors and guide components are made of polycarbonate or acrylic.

[0008] Furthermore, the probe connector includes a connecting frame, with clamping plates on the left and right sides of the connecting frame, multiple clamping blocks on the lower surface of the clamping plates, a snap-fit ​​plate fixed on the upper surface of the clamping plates, and a snap-fit ​​platform on the inner side of the snap-fit ​​plate.

[0009] Furthermore, the square sleeve has a hollow internal structure. The inner end face of the square sleeve is provided with a second retaining spring post, the outer end face of the square sleeve is provided with an opening, the upper end face of the square sleeve is provided with a retaining groove, one side of the retaining groove is provided with a scale, and the lower end face of the square sleeve is provided with a self-locking groove, which includes a locking groove and an unlocking groove.

[0010] Furthermore, the upper end of the sliding guide seat is provided with an upper plane and an upper inclined surface, the lower end of the sliding guide 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, and a lens is provided on the upper plane.

[0011] Furthermore, the closed end of the guide needle opening groove is provided with a guide needle cylindrical surface, which 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.

[0012] Furthermore, the connecting bracket is used to install the sliding guide seat. The inner side of the sliding guide seat is provided with an upper insertion strip and a lower insertion strip. One end of the connecting bracket is provided with a snap-fit ​​male head, and the other end of the connecting bracket is provided with an upper insertion slot and a lower insertion slot.

[0013] Furthermore, the sliding bracket is used to install the sliding guide seat and the connecting bracket, and is connected to the square sleeve. One end of the sliding bracket is provided with a snap-fit ​​female head, and the other end of the sliding bracket is provided with a bracket spring post. A bracket spring is installed between the bracket spring post and the second bracket spring post inside the square sleeve. The upper end face of the sliding bracket is provided with a bracket sliding post, which is installed in the bracket sliding groove on the upper end face of the square sleeve. The upper end face of the sliding bracket is provided with a locking spring hole, and the bottom of the locking spring hole is provided with a second locking spring post. A locking spring is installed on the second locking spring post.

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

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

[0016] The beneficial effects of this invention are as follows: Through precise thread adjustment and the modular design of the left and right guide seats, the opening groove of the guide needle can be precisely adjusted to accommodate puncture needles of different diameters and lengths. The locking and unlocking design of the guide assembly caters to different usage scenarios of the ultrasound guide. When the guide assembly is locked, in-plane puncture operations require moving the ultrasound guide and ultrasound probe to adjust the puncture point position. When the guide assembly is unlocked, the puncture point position can be adjusted by changing the position of the guide assembly within the square sleeve, and the puncture point position is displayed on a scale. The use of transparent or semi-transparent materials and the design of optical lenses enhance the visualization during the puncture process, ensuring that doctors can clearly observe the puncture needle path. This improves the accuracy of puncture positioning, increases the flexibility of use and the ease of operation for doctors, reduces the workload of medical staff, helps improve the success rate, and reduces puncture-related complications. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 yes Figure 1 The main view;

[0019] Figure 3 This is a cross-sectional view of the guide component;

[0020] Figure 4 This is a structural schematic diagram of the probe connector;

[0021] Figure 5 Yes, yes Figure 4 A partial structural sectional view;

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

[0023] Figure 7 This is a schematic diagram of the sliding guide seat;

[0024] Figure 8 This is a structural diagram of the connecting card slot;

[0025] Figure 9 This is a schematic diagram of the sliding card holder structure;

[0026] Figure 10 This is a schematic diagram of the self-locking plate;

[0027] Figure 11 This is a schematic diagram of the structure of a split sliding guide seat;

[0028] Figure 12 This is a schematic diagram of the left guide seat;

[0029] Figure 13 This is a schematic diagram of the right guide seat;

[0030] Figure 14 This is a schematic diagram of the adjustment knob;

[0031] Figure 15 This is a schematic diagram illustrating the principle of determining the location of the puncture point.

[0032] Explanation of symbols in the diagram:

[0033] 1. Probe connector; 11. Connector frame; 111. Snap-fit ​​chamber; 12. Clamping plate; 121. Clamping block; 13. Snap-fit ​​plate; 131. Snap-fit ​​platform; 14. Square sleeve; 141. Snap-fit ​​slot; 142. Self-locking groove; 1421. Locking groove; 1422. Unlocking groove; 1423. Guide slope; 1424. Unlocking slope; 143. Scale; 144. Second snap-fit ​​spring post; 2. Guide assembly; 21. Sliding guide seat; 2101. Upper plane; 2102. Upper slope; 2103. Lower slope; 211. Guide needle opening groove; 212. Guide needle opening; 213. Guide needle cylindrical surface; 2131. Puncture point; 214. Upper insertion strip; 215. Lower insertion strip; 216. Lens; 22. Connection 221. Snap-fit ​​male connector; 222. Upper insertion slot; 223. Lower insertion slot; 23. Sliding snap-fit ​​connector; 231. Snap-fit ​​female connector; 232. Snap-fit ​​connector spring post; 233. Locking plate spring hole; 234. Second locking plate spring post; 235. Snap-fit ​​connector sliding post; 24. Snap-fit ​​connector spring; 241. Snap-fit ​​female connector; 242. Snap-fit ​​connector spring post; 243. Locking plate spring hole; 244. Second locking plate spring post; 25. Self-locking plate; 251. Locking plate spring post; 252. Locking plate sliding post; 26. Locking plate spring; 201. Left guide seat; 2011. Snap-fit ​​connector strip; 202. Right guide seat; 2021. Snap-fit ​​connector groove; 203. Adjustment knob; 2031. Threaded shaft; 2032. Stop plate; 2033. Wrench. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Example 1

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

[0037] The probe connector 1 is used to install and fix the probe end of the ultrasound probe, and the guide component 2 is used to guide the puncture needle, including the puncture point, puncture angle and puncture path. The ultrasound probe is selected as a linear array, high frequency (greater than 7MHz) and moderately sized probe. The ultrasound guide of the present invention is attached to the patient's skin together with the probe end of the ultrasound probe. The puncture needle is guided into the patient's body through the guide component 2, thereby cooperating with the vascular ultrasound probe to complete the entire puncture process, so as to improve the accuracy, stability and visualization effect during the puncture process.

[0038] The probe connector 1 includes a connector frame 11. The connector frame 11 has a snap-fit ​​chamber 111 with openings at both ends. The snap-fit ​​chamber 111 has openings at both the top and bottom ends. The snap-fit ​​chamber 111 is used for mounting the probe end of the ultrasonic probe. The shape of the snap-fit ​​chamber 111 matches the probe end of the ultrasonic probe.

[0039] The connecting frame 11 has pressing plates 12 on both the left and right sides. The pressing plates 12 are used to fit the patient's skin together with the probe end of the ultrasound probe. In order to ensure the effectiveness of the fit and prevent left and right sliding, multiple pressing blocks 121 are provided on the lower surface of the pressing plate 12. The upper surface of the pressing block 121 is square, round or other regular shape.

[0040] A snap-fit ​​plate 13 is fixedly provided on the upper surface of the clamping plate 12. A snap-fit ​​platform 131 is provided on the inner side of the snap-fit ​​plate 13. The snap-fit ​​plate 13 is snapped and fixed to the ultrasonic probe through the snap-fit ​​platform 131. In order to ensure the reliability of the snap-fit, a reinforcing plate is provided between the snap-fit ​​plate 13, the clamping plate 12, and the connecting frame 11. The strength of the snap-fit ​​plate 13 is improved by 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 inside of the square sleeves 14 is hollow. The inner end face of the square sleeves 14 is provided with a second card spring post 144. The outer end face of the square sleeves 14 is provided with an opening through which the guide component 2 is installed.

[0042] The upper end face of the square sleeve 14 is provided with a card slot groove 141, and a scale 143 is provided on one side of the card slot groove 141. The lower end face of the square sleeve 14 is provided with a self-locking groove 142, which includes a locking groove 1421 and an unlocking groove 1422. The locking groove 1421 and the unlocking groove 1422 are connected together. A guide slope 1423 is provided at the connection between the locking groove 1421 and the unlocking groove 1422. An unlocking slope 1424 is provided at the end of the unlocking groove 1422.

[0043] The guide assembly 2 includes a sliding guide seat 21, a connecting seat 22, a sliding seat 23, and a self-locking piece 25. The sliding guide seat 21 is connected to the sliding seat 23 through the connecting seat 22. The sliding seat 23 is slidably connected to the square sleeve 14. A seat spring 24 is provided between the sliding seat 23 and the square sleeve 14. A locking piece spring 26 is provided between the self-locking piece 25 and the sliding seat 23.

[0044] The upper end of the sliding guide seat 21 is provided with an upper flat surface 2101 and an upper inclined surface 2102, and the lower end of the sliding guide seat 21 is provided with a lower inclined surface 2103. The upper inclined surface 2102 is provided with a needle guide opening 212, and a needle guide opening groove 211 is provided between the upper inclined surface 2102 and the lower inclined surface 2103. The needle guide opening groove 211 is used to place the puncture needle and guide the puncture needle. The opening end of the needle guide opening groove 211 is located between the upper inclined surface 2102, the lower inclined surface 2103, and the sliding guide seat 21. On the outer side of 1, the closed end of the guide needle opening groove 211 is provided with a guide needle cylindrical surface 213. The guide needle 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 angle between the central axis of the guide needle 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 the 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 needle cylindrical surface 213 is used to guide the puncture needle. The intersection of the lower end of the guide needle cylindrical surface 213 and the patient's skin is the puncture point 2131. When the puncture needle is inserted along the direction of the guide needle cylindrical surface 213, the puncture angle of the puncture needle is equal to the angle A between the central axis of the guide needle cylindrical surface 213 and the horizontal plane. If the insertion angle is not appropriate, the puncture needle can be rotated around the puncture point 2131 in the guide needle opening groove 211 towards the downward inclined surface 2103 to adjust the puncture angle of the puncture needle.

[0046] The inclined angle design of the lower inclined surface 2103 is designed to make the skin at the contact point tight when the sliding guide seat 21 is in contact with the patient's skin, that is, the skin in the target puncture area is tight, so as to facilitate the puncture.

[0047] To make it easier to observe the puncture path, a lens 216 is provided on the upper surface 2101 of the sliding guide seat 21. The lens 216 is a magnifying glass. Through the magnification effect of the lens 216, the puncture path can be observed better, ensuring the accuracy of the puncture.

[0048] The inner side of the sliding guide seat 21 is provided with an upper insertion strip 214 and a lower insertion strip 215. The upper insertion strip 214 and the lower insertion strip 215 are used for the installation and disassembly of the sliding guide seat 21, which facilitates the installation and replacement of the sliding guide seat 21. The upper insertion strip 214 and the lower insertion strip 215 are T-shaped or triangular. The joint positioning of the upper insertion strip 214 and the lower insertion strip 215 ensures the accuracy and reliability of the installation.

[0049] The connecting bracket 22 is used to install the sliding guide seat 21. One end of the connecting bracket 22 is provided with a snap-fit ​​male connector 221, which is T-shaped. The other end of the connecting bracket 22 is provided with an upper insertion groove 222 and a lower insertion groove 223. The shapes of the upper insertion groove 222 and the lower insertion groove 223 are respectively matched with the shapes of the upper insertion strip 214 and the lower insertion strip 215. The upper insertion groove 222 and the lower insertion groove 223 are through grooves, or one end of the upper insertion groove 222 and the lower insertion groove 223 is open and the other end is closed.

[0050] The sliding bracket 23 is used to install the sliding guide bracket 21 and the connecting bracket 22, and is connected to the square sleeve 14. One end of the sliding bracket 23 is provided with a snap-fit ​​female head 231. The shape of the snap-fit ​​female head 231 matches the shape of the snap-fit ​​male head 221. During installation, the snap-fit ​​female head 231 snaps into the snap-fit ​​male head 221 of the connecting bracket 22.

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

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

[0053] The upper end face of the sliding card holder 23 is provided with a locking spring hole 233, and the bottom of the locking spring hole 233 is provided with a second locking spring post 234, on which a locking spring 26 is installed.

[0054] The upper end face of the self-locking plate 25 is provided with a locking plate spring post 251, and the lower end face of the self-locking plate 25 is provided with a locking plate sliding post 252. The locking plate spring post 251 is installed in the locking plate spring hole 233. The locking plate spring post 251 and the second locking plate spring post 234 are used to install the locking plate spring 26. The locking plate spring 26 provides downward spring pressure to the self-locking plate 25.

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

[0056] When the guide component 2 is in the unlocked state, the sliding pin 235 of the sliding pin 23 slides in the pin groove 141 of the square sleeve 14. The locking pin 252 of the self-locking plate 25 slides and connects with the lower end face of the square sleeve 14 under the pressure of the locking spring 26. By sliding and adjusting the position of the sliding pin 23 in the sliding pin 23, the horizontal distance between the guide needle opening groove 211 and the guide needle column surface 213 of the sliding guide seat 21 and the target blood vessel is adjusted, that is, the position of the puncture point 2131 is adjusted. At this time, the position of the sliding pin 235 in the pin groove 141 is indicated by the scale 143 on one side of the pin groove 141. The scale value of the scale 143 is designed as the distance between the puncture point 2131 and the center point of the probe connector 1. Then the position of the puncture point 2131 can be indicated by the scale 143.

[0057] When the guide component 2 switches from the unlocked state to the locked state, it moves the sliding bracket 23 towards the inner end face of the square sleeve 14. When the locking plate sliding post 252 of the locking plate 25 slides into the locking groove 1421, the guide component 2 completes the locking through the locking plate sliding post 252 and the locking groove 1421. When the guide component 2 switches from the locked state to the unlocked state, it continues to move the sliding bracket 23 towards the inner end face of the square sleeve 14. When the locking plate sliding post 252 contacts the guide slope 1423, under the guidance of the guide slope 1423, The locking plate sliding post 252 slides from the locking groove 1421 into the unlocking groove 1422. The sliding seat 23 moves in the opposite direction to the inner end face of the square sleeve 14, and the locking plate sliding post 252 slides out from the unlocking slope 1424 at the end of the unlocking groove 1422, thus completing the unlocking of the guide component 2. After the guide component 2 is unlocked, under the limiting action of the seat sliding post 235 and the seat sliding groove 141, the guide 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] Example 2

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

[0060] The left guide seat 201 has a card seat connecting strip 2011 on its inner side, and the guide pin column surface 213 is designed on the card seat connecting strip 2011. The right guide seat 202 has a card seat connecting groove 2021 on its inner side. The shape of the card seat connecting groove 2021 matches the card seat connecting strip 2011. When the left guide seat 201 and the right guide seat 202 are close to each other, the card seat connecting strip 2011 is inserted into the card seat connecting groove 2021.

[0061] The adjusting knob 203 includes a threaded shaft 2031, a baffle 2032, and a wrench 2033. The adjusting knob 203 is connected to the left guide seat 201 via the threaded shaft 2031 and is rotatably connected to the right guide seat 202 via the baffle 2032. When the wrench 2033 is rotated clockwise, the threaded shaft 2031 screws into the left guide seat 201, and the baffle 2032 pushes the right guide seat 202 closer to the left guide seat 201, reducing the distance between the left and right guide seats 201 and 202, which is suitable for puncture needles with small diameters. When the wrench 2033 is rotated counterclockwise, the threaded shaft 2031 unscrews out of the left guide seat 201, and the baffle 2032 pushes the right guide seat 202 in the opposite direction to the left guide seat 201, increasing the distance between the left and right guide seats 201 and 202, which is suitable for puncture needles with large diameters.

[0062] This invention discloses a vascular puncture ultrasound guide. Through precise thread adjustment and a modular design of the left guide seat 201 and right guide seat 202, it achieves precise adjustment of the guide needle opening groove 211 to accommodate puncture needles of different diameters and lengths. The locking and unlocking design of the guide component 2 caters to different usage scenarios. When the guide component 2 is locked, in-plane puncture requires moving the ultrasound guide and ultrasound probe to adjust the puncture point position. When the guide component 2 is unlocked, the puncture point position can be adjusted by changing its position within the square sleeve 14, and the position of the puncture point 2131 is displayed on a scale 143. The use of transparent or semi-transparent materials and the design of optical lenses enhance the visualization during puncture, ensuring that doctors can clearly observe the puncture needle path. This improves the accuracy of puncture positioning, increases the flexibility of use and ease of operation for doctors, reduces the workload of medical staff, helps improve the success rate, and reduces puncture-related complications.

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

[0064] 1. Perform strict aseptic disinfection and draping of the patient's puncture area, use sterile coupling agent, and avoid contamination of the sterile area due to repeated movement during the operation. Make good preoperative preparations.

[0065] 2. Connect the ultrasound guide and ultrasound probe of the present invention together and attach them to the patient's puncture area.

[0066] 3. Select in-plane puncture. The puncture direction is on the same plane as the long axis of the blood vessel displayed by the long axis of the ultrasound probe. The puncture needle and the punctured blood vessel are displayed simultaneously, which can clearly show the puncture path of the puncture needle and the shape of the blood vessel. Use the ultrasound probe to view the vascular structure and the adjacent structures around the blood vessel. Select a puncture needle with an appropriate diameter and length, adjust the distance between the left guide seat 201 and the right guide seat 202, and select the position of the puncture point and the puncture angle for puncture.

[0067] When the guiding component 2 is locked, the vascular structure is viewed through the ultrasound probe, and the position of the puncture point is adjusted by moving the ultrasound probe and the ultrasound guide. The puncture needle is guided through the guide needle opening groove 211, ensuring the stability and accuracy of the puncture. The puncture angle can be adjusted in the guide needle opening groove 211, improving the flexibility of use and the convenience of operation for doctors.

[0068] When the guide component 2 is in the unlocked state, the vascular structure can be viewed through the ultrasound probe. By adjusting the position of the guide component 2 in the square sleeve 14, the position of the puncture point can be adjusted, and the position of the puncture point 2131 can be displayed through the scale 143. The puncture needle is guided through the guide needle opening groove 211, ensuring the stability and accuracy of the puncture.

[0069] like Figure 15 As shown, when the guide component 2 is adjusted to the unlocked state, the method for determining the puncture point is as follows: the depth d of the blood vessel is detected by the ultrasound probe, and the position of the puncture point is calculated based on the angle A between the central axis of the guide needle column 213 and the horizontal plane. The distance L from the puncture point to the midpoint of the probe connector 1 is L = d / tanA. When the angle A is 45 degrees, L = d. Based on the calculated distance L, combined with the scale value of the scale 143 (the scale value of the scale 143 is designed to be the distance from the puncture point 2131 to the probe connector), the puncture point is determined. By adjusting the position of the guide component 2 in the square sleeve 14 (i.e., the position of the sliding column 235 in the slot 141), the position of the puncture point can be adjusted and determined. At this time, the puncture needle is inserted along the guide needle column surface 213, and the puncture needle just enters the target blood vessel. The ultrasound guide device of the present invention improves the convenience of operation for doctors, and the puncture can be successful in one attempt, thereby improving the accuracy of puncture positioning, reducing the workload of medical staff, greatly improving the success rate, and reducing puncture-related complications.

[0070] However, the above description is merely a specific embodiment of the present invention and should not be construed as limiting the scope of the present invention. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of the present invention should still fall within the scope of the claims of the present invention.

Claims

1. A vascular puncture ultrasound guide, characterized in that, The device includes a probe connector and a guide assembly. The probe connector is used to install and fix the probe end of an ultrasonic probe. The probe connector has an internal snap-fit ​​chamber with openings at both ends. The front and rear ends of the probe connector have square sleeves with a hollow internal structure. The upper surface of the square sleeve has a slotted groove, and the lower surface has a self-locking groove, which includes a locking groove and an unlocking groove. The square sleeve is used to install the guide assembly, which is in either an unlocked or locked state within the square sleeve. The guide assembly includes a sliding guide seat, a connecting slot, a sliding slot, and a self-locking piece. The sliding guide seat is connected to the connecting slot... The base is connected to the sliding bracket. The upper end face of the sliding bracket is provided with a bracket sliding post. The bracket sliding post is installed in the bracket sliding groove on the upper end face of the square sleeve. The sliding bracket is slidably connected to the square sleeve through the bracket sliding post and the bracket sliding groove. A bracket spring is provided between the sliding bracket and the square sleeve. The upper end face of the self-locking piece is provided with a locking spring post. A locking spring is provided between the locking spring post of the self-locking piece and the second locking spring post of the sliding bracket. The lower end face of the self-locking piece is provided with a locking sliding post. When the locking sliding post is in the locking groove, the guide component is in the locked state. When the locking sliding post slides out of the unlocking groove, the guide component is in the unlocked state.

2. The vascular puncture ultrasound guide according to claim 1, characterized in that, The probe connector and guide assembly are made of polycarbonate or acrylic.

3. The vascular puncture ultrasound guide according to claim 1, characterized in that, The probe connector includes a connecting frame, with clamping plates on the left and right sides of the connecting frame. Multiple clamping blocks are provided on the lower surface of the clamping plates, and a snap-fit ​​plate is fixedly provided on the upper surface of the clamping plates. A snap-fit ​​platform is provided on the inner side of the snap-fit ​​plate.

4. The vascular puncture ultrasound guide according to claim 1, characterized in that, A scale is provided on one side of the card slot slide.

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

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, which 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 bracket is used to install the sliding guide seat. The inner side of the sliding guide seat is provided with an upper insertion strip and a lower insertion strip. One end of the connecting bracket is provided with a snap-fit ​​male head, and the other end of the connecting bracket is provided with an upper insertion slot and a lower insertion slot.

8. The vascular puncture ultrasound guide according to claim 7, characterized in that, One end of the sliding bracket is provided with a snap-fit ​​female head, and the other end of the sliding bracket is provided with a bracket spring post. A bracket spring is installed between the bracket spring post and the second bracket spring post inside the square sleeve. The upper end face of the sliding bracket is provided with a locking spring hole, and the bottom of the locking spring hole is provided with a second locking spring post. A locking spring is installed on the second locking spring post.

9. The vascular puncture ultrasound guide according to claim 7, characterized in that, The sliding guide seat is a split structure, which includes a left guide seat, a right guide seat and an adjustment knob. The left guide seat and the right guide seat are respectively inserted into the connecting card seat, and the distance between the left guide seat and the right guide seat is adjusted by the adjustment knob.

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