An ultrasound puncture guiding rail system and a puncture method

Abstract

The application discloses an ultrasonic puncture guiding track system, comprising an ultrasonic probe, a guiding sleeve, a distance sensor, a display module and a processing module. The application simulates the puncture track of the guiding sleeve and the central axis of the ultrasonic probe in the display module, so that an operator can visually observe the puncture track before puncture and then adjust the puncture track until the ideal puncture angle and puncture length are reached. The application is simple to operate and has low requirements on the puncture experience of the operator, so that the practical operation threshold of the operator is greatly reduced.

Description

Technical Field

[0001] This invention relates to the field of ultrasound diagnostic equipment technology, and in particular to an ultrasound puncture guidance track system and puncture method. Background Technology

[0002] Ultrasound-guided biopsy involves, under ultrasound guidance, avoiding vital organs and major blood vessels and nerves, accurately inserting a puncture needle into the diseased tissue for treatment or to aspirate or cut out a small number of cells or tissues for pathological examination. Ultrasound-guided biopsy is widely used in clinical diagnosis and has become a very important diagnostic technique, enabling timely and accurate diagnosis of many diseases, especially tumors.

[0003] Because puncture needles are often close to dangerous structures such as blood vessels, organs, and the spinal cord, and need to accurately reach the target point, previous improvements have involved creating reflective surfaces on the needle to enhance visualization under ultrasound, thus assisting operators in puncture. However, this approach has drawbacks, such as a large reflective surface affecting needle strength, or a small reflective surface resulting in minimal improvement in visualization, leading to unsatisfactory practical application results.

[0004] Therefore, providing a technical means to guide the puncture needle to the target location smoothly and quickly is an important research direction. Summary of the Invention

[0005] To achieve the above objectives, this invention provides an ultrasonic puncture guidance track system, i.e., a puncture method, which guides the puncture needle to the target position smoothly through a simple and rapid means.

[0006] In a first aspect, the present invention provides an ultrasonic puncture-guided track system, comprising:

[0007] An ultrasound probe for acquiring ultrasound images of a patient, the ultrasound probe having a probe portion and a fixing member provided on the side wall of the probe portion;

[0008] A guide sleeve is used to guide the puncture needle to puncture at the target puncture angle. The guide sleeve and the end of the fixing member away from the ultrasound probe can be rotatably fixed.

[0009] A puncture needle, the puncture needle having a scale, and a limiting block fixed to the outer surface of the puncture needle;

[0010] A distance sensor is used to measure the distance from a specific fixed position of the fastener to the guide sleeve directly below the specific fixed position;

[0011] A display module is used to display the ultrasound image, and on the ultrasound image, the central axis of the ultrasound probe, the auxiliary line of the puncture track, and the target length of the puncture needle;

[0012] A processing module, connected to the ultrasound probe and the distance sensor respectively, includes:

[0013] A first processing unit is used to determine the angle between the central axis of the ultrasound probe and the auxiliary line of the puncture track and the length of the puncture target based on the distance sensor measurement value;

[0014] A second processing unit, connected to the first processing unit, is used to control the display module to display the ultrasound image and to display the central axis of the ultrasound probe, the auxiliary line of the puncture track, and the target length of the puncture needle on the ultrasound image.

[0015] Preferably, the formula for calculating the angle A between the central axis of the ultrasound probe and the auxiliary line of the puncture track is:

[0016] A = arctan(a / b);

[0017] Wherein, a = the distance from a specific fixed position of the fixing member to the end of the fixing member away from the ultrasonic probe; b = the distance from a specific fixed position of the fixing member to the guide sleeve directly below the specific fixed position; the specific fixed position is the position where the distance sensor is installed.

[0018] Preferably, the formula for calculating the puncture length L is:

[0019] L = L² + L³

[0020] L2 = L1 / sin(A);

[0021] L1 is the distance from the intersection of the extension line of the end of the fixing member away from the ultrasonic probe and the central axis of the guide sleeve to the central axis of the ultrasonic probe.

[0022] L2 is the distance between the intersection of the extension line from the target puncture position to the end of the fixation member away from the ultrasound probe and the central axis of the guide sleeve;

[0023] L3 is the distance between the intersection of the extension line of the end of the fixing member away from the ultrasonic probe and the central axis of the guide sleeve and the upper end of the guide sleeve.

[0024] Preferably, the processing module further includes a third processing unit for identifying one or more blood vessels within the ultrasound image.

[0025] Preferably, the processing module further includes a fourth processing unit connected to the third processing unit, used to control the display module to mark blood vessels on the ultrasound image.

[0026] Preferably, the processing module further includes a fifth processing unit for identifying at least one of the one or more blood vessels as an artery or vein.

[0027] Preferably, identifying arteries and veins involves defining a threshold for vascular parameters in the fifth processing unit, comparing the acquired vascular data with the threshold, and identifying the vascular as an artery or vein.

[0028] Preferably, the vascular parameters include vascular diameter, vascular wall thickness, and vascular image pulsation.

[0029] Preferably, when identifying arteries and veins, at least one vascular parameter is compared.

[0030] Preferably, the fifth processing unit is connected to the fourth processing unit and controls the display module to mark arteries and veins on the ultrasound image.

[0031] Secondly, the present invention provides an ultrasonic puncture method applied to the aforementioned ultrasonic puncture guided track system, specifically comprising the following steps:

[0032] Step S1: The ultrasound puncture guidance track system acquires ultrasound images of the patient and displays them in the display module, while also displaying the central axis of the ultrasound probe in the display module;

[0033] Step S2: Determine the angle between the central axis of the ultrasound probe and the puncture track auxiliary line based on the distance sensor measurement value, and show the puncture track auxiliary line and the target length of the puncture needle on the ultrasound image;

[0034] Step S3: Move the ultrasound probe on the skin surface until the central axis of the ultrasound probe passes through the target puncture position;

[0035] Step S4: Manually adjust the angle of the guide sleeve relative to the fixing member by displaying the central axis of the ultrasound probe and the auxiliary line of the puncture track in the display module until the intersection of the central axis of the ultrasound probe and the auxiliary line of the puncture track is located at the target puncture position.

[0036] Step S5: Adjust the position of the limiting block on the puncture needle according to the target length of the puncture needle shown in the display module;

[0037] In step S6, the medical staff inserts the puncture needle along the guide sleeve to the target puncture position.

[0038] The present invention adopts the above technical solution and has the following technical effects compared with the prior art:

[0039] (1) Based on the purpose of guiding the puncture needle to puncture from the target angle, the present invention provides an ultrasonic puncture guidance track system, which can guide the puncture needle to the target position smoothly through a simple and quick means. The ultrasonic puncture guidance track system provided in the present invention simulates the puncture track of the guide sleeve and the central axis of the ultrasonic probe in the display module. The operator can intuitively observe the puncture track before puncture and then make adjustments until the ideal puncture angle and puncture length are achieved.

[0040] (2) This invention is simple to operate and requires little puncture experience from the operator, which greatly reduces the practical threshold for the operator. Attached Figure Description

[0041] Figure 1 This is a schematic diagram of the structure of an ultrasonic puncture guidance track system according to the present invention;

[0042] Figure 2 This is a schematic diagram of the puncture needle in this invention;

[0043] Figure 3 A schematic diagram of the structure for inserting a puncture needle into a guide sleeve;

[0044] The markings in the diagram indicate the following:

[0045] 1-Ultrasound probe, 11-Fixed component, 2-Guide sleeve, 3-Distance sensor, 4-Display module, 5-Processing module, 6-Ultrasound probe central axis, 7-Puncture track auxiliary line, A-Angle between ultrasound probe central axis and puncture track auxiliary line, 8-Skin, 9-Puncture needle, 91-Limiting block. Detailed Implementation

[0046] In a first aspect, the present invention provides an ultrasonic puncture guidance track system, such as... Figure 1 As shown, it includes:

[0047] An ultrasound probe 1 is used to acquire ultrasound images of a patient. The ultrasound probe 1 has a probe part and a fixing member 11 is provided on the side wall of the probe part.

[0048] A guide sleeve 2 is used to guide the puncture needle to puncture at the target puncture angle. The guide sleeve and the end of the fixing member 11 away from the ultrasonic probe 1 can be rotatably fixed.

[0049] A puncture needle 9, the puncture needle 9 having graduations, and a limiting block 91 fixed to the outer surface of the puncture needle 9, such as... Figure 2 middle;

[0050] A distance sensor 3 is used to measure the distance from a specific fixed position of the fastener 11 to the guide sleeve directly below the specific fixed position;

[0051] A display module 4 is used to display the ultrasound image, and to display the central axis of the ultrasound probe and the auxiliary lines of the puncture track on the ultrasound image;

[0052] A processing module 5, connected to the ultrasound probe and the distance sensor respectively, includes:

[0053] A first processing unit is used to determine the angle between the central axis of the ultrasound probe and the auxiliary line of the puncture track and the length of the puncture target based on the distance sensor measurement value;

[0054] A second processing unit, connected to the first processing unit, is used to control the display module to display the ultrasound image and to display the central axis of the ultrasound probe, the auxiliary line of the puncture track, and the target length of the puncture needle on the ultrasound image.

[0055] Specifically, the formula for calculating the angle A between the central axis of the ultrasound probe and the auxiliary line of the puncture track is as follows:

[0056] A = arctan(a / b);

[0057] Wherein, a = the distance from the specific fixed position of the fixing member 11 to the end of the fixing member 11 away from the ultrasonic probe; b = the distance from the specific fixed position of the fixing member 11 to the guide sleeve directly below the specific fixed position; the specific fixed position is the position where the distance sensor is installed.

[0058] Specifically, the formula for calculating the puncture target length L is as follows:

[0059] L = L² + L³

[0060] L2 = L1 / sin(A);

[0061] L1 is the distance from the intersection of the extension line of the end of the fixing member away from the ultrasonic probe and the central axis of the guide sleeve to the central axis of the ultrasonic probe.

[0062] L2 is the distance between the intersection of the extension line from the target puncture position to the end of the fixation member away from the ultrasound probe and the central axis of the guide sleeve;

[0063] L3 is the distance between the intersection of the extension line of the end of the fixing member away from the ultrasonic probe and the central axis of the guide sleeve and the upper end of the guide sleeve.

[0064] In a preferred embodiment of the present invention, the processing module further includes a third processing unit for identifying one or more blood vessels within the ultrasound image;

[0065] The processing module further includes a fourth processing unit connected to the third processing unit, used to control the display module to mark blood vessels on the ultrasound image.

[0066] In a further preferred embodiment of the present invention, the processing module further includes a fifth processing unit connected to the third processing unit, for identifying at least one of one or more blood vessels as an artery or a vein;

[0067] The fifth processing unit is connected to the fourth processing unit and controls the display module to mark arteries and veins on the ultrasound image.

[0068] Specifically, identifying arteries and veins involves defining thresholds for vascular parameters in the fifth processing unit, comparing the acquired vascular data with the thresholds, and identifying the vascular as an artery or vein.

[0069] The vascular parameters include vessel diameter, vessel wall thickness, and vascular pulsation. Specifically, when identifying arteries and veins, the acquired vascular data for at least one vascular parameter is compared with a defined threshold.

[0070] Secondly, the present invention provides an ultrasonic puncture method applied to the aforementioned ultrasonic puncture guided track system, specifically comprising the following steps:

[0071] Step S1: The ultrasound puncture guidance track system acquires ultrasound images of the patient and displays them in the display module, while also displaying the central axis of the ultrasound probe in the display module;

[0072] Step S2: Determine the angle between the central axis of the ultrasound probe and the puncture track auxiliary line based on the distance sensor measurement value, and show the puncture track auxiliary line and the target length of the puncture needle on the ultrasound image;

[0073] Step S3: Move the ultrasound probe on the skin surface until the central axis of the ultrasound probe passes through the target puncture position;

[0074] Step S4: Manually adjust the angle of the guide sleeve relative to the fixing member 11, based on the central axis of the ultrasound probe and the auxiliary line of the puncture track shown in the display module, until the intersection of the central axis of the ultrasound probe and the auxiliary line of the puncture track is located at the target puncture position.

[0075] Step S5: According to the target length of the puncture needle shown in the display module, adjust the position of the limiting block 91 on the puncture needle 9 along the scale on the puncture needle 9 until the distance from the limiting block 91 to the needle tip is the target length of the puncture needle.

[0076] In step S6, the medical staff inserts the puncture needle along the guide sleeve to the target puncture position.

[0077] The present invention will now be described in detail and specifically through specific embodiments to enable a better understanding of the invention. However, the following embodiments do not limit the scope of the invention. Example

[0078] This embodiment provides an ultrasonic puncture guided track system, including: an ultrasonic probe 1, a guide sleeve 2, a distance sensor 3, a display module 4, a processing module 5, and a puncture needle 9. Their positional relationships are as follows: Figure 1 middle.

[0079] The ultrasonic probe 1 has a probe part and a fixing member 11 is provided on the side wall of the probe part.

[0080] Specifically, the fixing member 11 is a structure that is perpendicular to the central axis of the ultrasonic probe 1, and the outer wall of the sleeve 2 of the guide sleeve 2 is rotatably fixed to the end of the fixing member 11 away from the ultrasonic probe 1.

[0081] In a preferred embodiment, the fastener 11 is hinged to the guide sleeve 2.

[0082] Distance sensor 3 is used to measure the distance from a specific fixing position of the fixing member 11 to the guide sleeve directly below the specific fixing position. In a preferred embodiment, the specific fixing position is near the end of the fixing member 11 away from the ultrasonic probe 1.

[0083] In this embodiment, a computer is included, which includes a display module 4 and a processing module 5.

[0084] The ultrasound probe 1 is moved on the skin until, in the display module 4, the central axis of the ultrasound probe passes through the target puncture position.

[0085] The guide sleeve 2 rotates relative to the fixing member 11 in the plane where the central axis of the ultrasound probe is located until, in the display module 4, the intersection of the puncture track auxiliary line and the central axis of the ultrasound probe is located at the target puncture position.

[0086] The puncture needle 9 has graduations, and a limiting block 91 is fixed to the outer surface of the puncture needle; it can slide relative to the graduations. The radial distance of the limiting block 91 is greater than the radius of the guide sleeve 2. When the puncture needle 9 is inserted into the guide sleeve 2 and reaches the target length, it cannot be inserted further due to the limiting block 91 at the upper end of the guide sleeve 2. Figure 3 middle.

[0087] The medical staff inserts the puncture needle along the guide sleeve until it reaches the target puncture site.

[0088] The specific embodiments of the present invention have been described in detail above, but they are merely examples, and the present invention is not limited to the specific embodiments described above. For those skilled in the art, any equivalent modifications and substitutions to the present invention are also within the scope of the present invention. Therefore, all equivalent transformations and modifications made without departing from the spirit and scope of the present invention should be covered within the scope of the present invention.

Claims

1. An ultrasonic puncture guidance track system, characterized in that, include: An ultrasound probe for acquiring ultrasound images of a patient, the ultrasound probe having a probe portion and a fixing member provided on the side wall of the probe portion; A guide sleeve is used to guide the puncture needle to puncture at the target puncture angle. The guide sleeve and the end of the fixing member away from the ultrasound probe can be rotatably fixed. A puncture needle, the puncture needle having a scale, and a limiting block fixed to the outer surface of the puncture needle; A distance sensor is used to measure the distance from a specific fixed position of the fastener to the guide sleeve directly below the specific fixed position; A display module is used to display the ultrasound image, and to display the central axis of the ultrasound probe and the auxiliary lines of the puncture track on the ultrasound image; A processing module, connected to the ultrasound probe and the distance sensor respectively, includes: A first processing unit is used to determine the angle between the central axis of the ultrasound probe and the auxiliary line of the puncture track and the length of the puncture target based on the distance sensor measurement value; A second processing unit, connected to the first processing unit, is used to control the display module to display the ultrasound image and to display the central axis of the ultrasound probe, the auxiliary line of the puncture track, and the target length of the puncture needle on the ultrasound image; The formula for calculating the angle A between the central axis of the ultrasonic probe and the auxiliary line of the puncture track is as follows: A = arctan(a / b); Where, a = the distance from a specific fixing position of the fixing member to the end of the fixing member away from the ultrasonic probe; b = the distance from a specific fixing position of the fixing member to the guide sleeve directly below the specific fixing position; the specific fixing position is the position where the distance sensor is installed; The formula for calculating the puncture length L is: L = L² + L³ L2 = L1 / sin(A); L1 is the distance from the intersection of the extension line of the end of the fixing member away from the ultrasonic probe and the central axis of the guide sleeve to the central axis of the ultrasonic probe. L2 is the distance between the intersection of the extension line from the target puncture position to the end of the fixation member away from the ultrasound probe and the central axis of the guide sleeve; L3 is the distance between the intersection of the extension line of the end of the fixing member away from the ultrasonic probe and the central axis of the guide sleeve and the upper end of the guide sleeve.

2. The ultrasonic puncture guidance track system according to claim 1, characterized in that, The processing module further includes a third processing unit for identifying one or more blood vessels within the ultrasound image.

3. The ultrasonic puncture guidance track system according to claim 2, characterized in that, The processing module further includes a fourth processing unit connected to the third processing unit, used to control the display module to mark blood vessels on the ultrasound image.

4. The ultrasonic puncture guidance track system according to claim 1, characterized in that, The processing module further includes a fifth processing unit for identifying at least one of the one or more blood vessels as an artery or vein.

5. The ultrasonic puncture guidance track system according to claim 4, characterized in that, Identifying arteries and veins involves defining thresholds for vascular parameters in the fifth processing unit, comparing the acquired vascular data with the thresholds, and identifying the vascular as an artery or vein.

6. The ultrasonic puncture guidance track system according to claim 5, characterized in that, Vascular parameters include vessel diameter, vessel wall thickness, and pulsation in the image.

7. The ultrasonic puncture guidance track system according to claim 5, characterized in that, The processing module further includes a fourth processing unit connected to the fifth processing unit, which controls the display module to mark arteries and veins on the ultrasound image.

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