Cardiology department clinical puncture device with puncture angle convenient to adjust

Abstract

The invention provides a cardiology department clinical puncture device capable of conveniently adjusting a puncture angle, relates to the technical field of medical equipment, and solves the technical problems that in the prior art, an ultrasonic display section cannot completely display the blood vessel trend, and an optimal puncture point cannot be quickly determined when an auxiliary support is manually moved. The cardiology department clinical puncture device facilitating puncture angle adjustment comprises a fixing mechanism and an adjusting mechanism. The adjusting mechanism comprises a rotation adjusting assembly, a distance adjusting assembly, a depth adjusting assembly and a controller. The controller is electrically connected with the rotation adjusting assembly, the distance adjusting assembly and the depth adjusting assembly so as to correspondingly control the rotation adjusting assembly, the distance adjusting assembly and the depth adjusting assembly. Through ingenious cooperation of the fixing mechanism, the adjusting mechanism and the controller, the problems that in the prior art, an ultrasonic display section cannot completely display the blood vessel trend, and the optimal puncture point cannot be rapidly determined when an auxiliary support is manually moved are effectively solved.

Description

Technical Field

[0001] The invention relates to the technical field of medical equipment, and in particular to a clinical puncture device for cardiology that is convenient for adjusting the puncture angle. Background Art

[0002] Subclavian vein puncture is of great clinical significance and is applicable to a variety of situations. For example, this puncture method is used when a large amount of fluid or blood transfusion is required in a short period of time for patients with difficult peripheral vein puncture, central venous pressure measurement, temporary pacing electrode implantation, and permanent pacemaker implantation. In specific operations, 2-3 cm below the midpoint of the clavicle is usually selected as the puncture point, and the direction of the puncture needle is aimed at the suprasternal fossa. In fact, the area connecting the Adam's apple to the supraclavicular fossa can be used as the needle insertion direction. When inserting the needle, the angle between the needle body and the chest wall skin should be less than 10°. After determining the puncture point, local anesthesia is first performed, and the puncture syringe is emptied. The needle tip can first touch the lower edge of the clavicle, and then the needle tip is slightly pressed down with the thumb so that it can pass through the subclavian space. Then the needle body angle is flattened, close to the inner lower edge of the sternoclavius ​​and slowly pushed forward in the suprasternal fossa. At this time, the bevel of the needle tip should be facing the heart to avoid entering the internal jugular vein when delivering the guide wire. During the needle insertion process, gentle suction should be performed while the needle is inserted to maintain negative pressure. Once entering the blood vessel, the direction should not be adjusted in the deep tissue. Otherwise, even if the guide wire is successfully inserted, it will be difficult to insert the catheter.

[0003] However, this type of puncture has certain difficulties. Since the vein does not fluctuate, in the case of blind puncture, the position of the artery must be determined first, and then the vein is punctured 1 cm inside the artery. This method completely relies on the doctor's experience and has a high failure rate. However, ultrasound-guided puncture can guide the needle position and direction based on ultrasound images, thereby improving the success rate of puncture.

[0004] At present, the puncture holders used for assisted ultrasound-guided puncture are mainly divided into two types: in-plane and out-of-plane puncture holders. When the in-plane puncture holder guides the needle, the needle track is located in the ultrasonic plane emitted by the ultrasound probe, so the puncture needle can be fully displayed, and the needle can be stopped when the needle tip reaches the lesion. In contrast, during the puncture process, the needle track of the out-of-plane puncture holder cannot be fully displayed. Only when the puncture needle reaches the ultrasound plane, a strong point echo is displayed, and then the needle is stopped. At this time, if the needle tip is in the blood vessel, the puncture is considered successful. In-plane puncture holders are widely used in clinical practice because they can monitor the shape of the puncture needle in real time, have the characteristics of low operating threshold and high safety. Although the out-of-plane puncture holder cannot fully display the puncture needle, the safety is not as good as the in-plane puncture, and the operator requirements are also higher, which limits its scope of application, it also has significant advantages, that is, the distance of the needle insertion in the skin is shorter than the distance of the ultrasound probe. When puncturing tissues of the same depth, the distance of the needle track punctured using the out-of-plane technology is shorter, which is less harmful to patients.

[0005] In the existing in-plane puncture, if it is necessary to puncture deeper tissue, there are two solutions: the first is to move the puncture needle in a direction perpendicular to the skin, but this method will make the puncture needle nearly parallel to the direction of the ultrasonic beam, which is not conducive to the display of the puncture needle. Even if there is a puncture guide line on the image, it is difficult to overlap the puncture needle with the guide line because the puncture needle is difficult to display. This loses the advantage of in-plane puncture and increases the risk of puncture. The second method is to move the puncture needle insertion point away from the center of the probe, so that a clearer needle tract image can be obtained, but the insertion length becomes longer, which also increases the risk of puncture.

[0006] In order to control the accuracy of puncture, an auxiliary bracket is provided in the prior art. This bracket is used to stabilize the ultrasonic probe and guide the determination of the puncture site according to the imaging of the ultrasonic probe. After the puncture site is confirmed, the auxiliary bracket is stopped from moving, and then the position of the puncture needle is adjusted by moving the position of the support seat and the mounting seat, so that the needle moves to a suitable position to accurately puncture the puncture site, and finally the puncture needle is pushed to perform the puncture operation.

[0007] However, there are some problems with the existing technology: first, after the location of the blood vessel is displayed on the ultrasound image, the doctor needs to rely on experience to determine the puncture point and manually move the puncture needle to the insertion position, which may lead to inaccurate puncture point and thus cause puncture failure; second, due to the irregular shape of the blood vessel, the ultrasound display section cannot fully display the direction of the blood vessel, and when the auxiliary stent is manually moved, the optimal puncture point cannot be quickly determined.

[0008] In summary, there is an urgent need for a puncture device that can fully display the direction of blood vessels and reduce the difficulty of operation for doctors, so as to effectively overcome the various defects existing in the existing technology. Summary of the invention

[0009] The purpose of the present invention is to provide a clinical puncture device for cardiology that is easy to adjust the puncture angle, so as to solve the technical problem that the ultrasound display section in the prior art cannot fully display the direction of the blood vessel, and the optimal puncture point cannot be quickly determined when the auxiliary stent is manually moved. The preferred technical solution among the many technical solutions provided by the present invention can produce many technical effects as described below.

[0010] To achieve the above object, the present invention provides the following technical solutions: A clinical puncture device for cardiology that is convenient for adjusting the puncture angle, comprising: A fixing mechanism, used for placing and carrying a fixed ultrasound probe, and enabling the detection end of the ultrasound probe to contact the patient's skin; An adjusting mechanism, mounted on the fixing mechanism, for carrying the puncture needle and adjusting the angle of the puncture needle; Wherein, the adjustment mechanism includes a rotation adjustment component, a distance adjustment component, a depth adjustment component and a controller; One end of the rotation adjustment component is connected to the fixing mechanism, and swings in the angular direction with the connection point with the fixing mechanism as the center of the circle and the detection end of the ultrasound probe perpendicular to the body length direction of the patient's skin as the starting line, and the other end of the rotation adjustment component is connected to the distance adjustment component; the distance adjustment component is driven by the rotation adjustment component to rotate at the same angle according to the angle of the rotation adjustment component, and the end of the distance adjustment component away from the rotation adjustment component is connected to the depth adjustment component, so that the depth adjustment component can be driven to adjust closer to or away from the center of the rotation adjustment component; the depth adjustment component is used to carry the puncture needle, and can drive the puncture needle to adjust the depth distance along the distance adjustment extension direction perpendicular to the distance adjustment component; the controller is electrically connected to the rotation adjustment component, the distance adjustment component and the depth adjustment component respectively, so as to respectively realize the corresponding control of the rotation adjustment component, the distance adjustment component and the depth adjustment component.

[0011] Furthermore, the fixing mechanism includes a rotating sleeve, a positioning bolt and a limit block: The rotating sleeve is mounted on the probe body of the ultrasonic probe, and the rotating sleeve can rotate along the circumferential direction of the probe body to adjust the position of the regulating mechanism; A fixed sleeve is fixedly installed on the circumferential side wall of the rotating sleeve along its radial direction, the limit block is slidably arranged in the fixed sleeve, the positioning bolt passes through the fixed sleeve along the radial direction of the rotating sleeve, the positioning bolt is screwed to the fixed sleeve and its end is rotatably arranged on the limit block; The limit block is rotated and pressed against the ultrasonic probe through the positioning bolt to fix the rotating sleeve and the ultrasonic probe.

[0012] Furthermore, the fixing mechanism also includes a rubber sleeve, which is sleeved on the probe end of the ultrasonic probe and is used to increase friction so as to better fix the ultrasonic probe.

[0013] Furthermore, the rotation adjustment assembly includes a clamping plate, a fixed shaft and a supporting shaft: The clamping plate is fixedly connected to the outer circumferential side wall of the rotating sleeve; The fixed shaft is rotatably arranged on the clamping plate, and the axial extension direction of the fixed shaft is perpendicular to the length extension direction of the ultrasonic probe; One end of the support shaft is fixedly connected to the fixed shaft, the support shaft is arranged perpendicular to the axis of the fixed shaft, and the other end of the support shaft is extended along the length direction of the ultrasonic probe toward the detection end thereof; The clamping plate is fixedly connected with a stepper motor, and the output shaft of the stepper motor is fixedly connected to the fixed shaft to drive the output shaft to rotate; The stepper motor is electrically connected to a controller to control the rotation angle of the stepper motor.

[0014] Furthermore, the distance adjustment assembly includes an extension shaft, a support spring and a positioning assembly: The support shaft is provided with an inner cavity with an opening located away from one end of the fixed shaft, the extension shaft is slidably disposed in the inner cavity, the support spring is installed in the inner cavity, one end of the support spring abuts against the bottom surface of the inner cavity, the other end of the support spring abuts against one end of the extension shaft, and the other end of the extension shaft is connected to the rotation adjustment component; The positioning assembly is installed on the side wall of the supporting shaft to limit the extending length of the extension shaft.

[0015] Furthermore, the positioning assembly includes a positioning block, a positioning sleeve and a positioning spring, the positioning sleeve being fixedly mounted on the outer wall of the support shaft, the positioning sleeve being provided with an accommodating cavity with an opening located on one side of the support shaft along the radial direction of the support shaft, the positioning sleeve being provided with a through cavity at one end away from the support shaft, the positioning block penetrating the through cavity, the accommodating cavity and the side wall of the support shaft to limit the sliding of the extension shaft, the positioning block being provided with a limiting sleeve sliding in the accommodating cavity, the positioning spring sleeve being provided on the positioning block with one end abutting against the limiting sleeve and the other end abutting against the side wall of the support shaft.

[0016] Furthermore, the rotation adjustment assembly further includes a magnet, an electromagnet and a plurality of limit teeth, wherein the plurality of limit teeth are sequentially arranged along the axial direction of the extension shaft, the positioning block is used to be clamped in the teeth, the magnet is fixedly mounted on the top of the extension shaft, the electromagnet is mounted on the bottom of the inner cavity, and the electromagnet is electrically connected to the controller; The controller controls the extension length of the extension shaft by controlling the magnetic force of the electromagnet.

[0017] Furthermore, the depth adjustment assembly includes a support base and two drive groups. The support base is penetrated by a guide cavity, and the needle of the puncture needle passes through the guide cavity. The two drive groups are symmetrically arranged on both sides and electrically connected to the controller so that their extension length can be adjusted by the controller.

[0018] Furthermore, the drive group includes a drive motor, a transmission shaft and a conveyor belt. The drive motor is fixedly mounted on a support seat, the transmission shaft is rotatably mounted on the support seat, and the conveyor belt is respectively sleeved on the output shaft and the transmission shaft of the drive motor. The conveyor belt contacts the needle of the puncture needle and utilizes static friction to drive it to extend and retract.

[0019] Furthermore, it also includes a position sensor and a distance sensor which are electrically connected to the controller respectively, the position sensor is arranged on the distance adjustment component to feedback its position, and the distance sensor is installed on the depth adjustment component to feedback its extension length.

[0020] The cardiology clinical puncture device provided by the present invention, which is convenient for adjusting the puncture angle, effectively solves the problem in the prior art that the ultrasound display section cannot fully display the direction of the blood vessels and the optimal puncture point cannot be quickly determined when the auxiliary bracket is manually moved, and significantly improves the functionality of the dining table and the stability during use on the bed. The specific technical effects achieved are as follows: Improve the accuracy of puncture point determination The ultrasonic probe is stabilized by a fixing mechanism, and the rotation adjustment component, distance adjustment component and depth adjustment component in the adjustment mechanism work together under the control of a controller. The rotation adjustment component swings with the ultrasonic probe detection end perpendicular to the body length direction of the patient's skin as the starting line, which helps to more accurately adjust the angle of the puncture needle according to the ultrasonic image, so that the puncture point can be determined more accurately, avoiding the inaccuracy that may be caused by doctors judging the puncture point based on experience in the prior art.

[0021] Complete display of blood vessel direction The multi-dimensional adjustment capability of the adjustment mechanism (including angle, distance and depth adjustment) enables the blood vessels to be observed from different angles and distances by finely adjusting the position of the puncture needle under the detection of the ultrasound probe, thereby displaying the direction of the blood vessels as completely as possible. This multi-dimensional adjustment overcomes the problem of being unable to quickly determine the optimal puncture point when the traditional manual movement of the auxiliary stent is used, and helps to better plan the puncture path.

[0022] Reduce the difficulty of doctors' operation The controller controls each adjustment component to improve the degree of automation. Doctors do not need to manually move the puncture needle to the insertion position, reducing cumbersome manual operation steps. For example, in the prior art, it is necessary to manually adjust the auxiliary bracket to find the puncture site, but now the controller can achieve precise adjustment of the puncture needle position, greatly reducing the difficulty of operation for doctors.

[0023] In addition, since the adjustment mechanism can accurately adjust the angle, distance and depth of the puncture needle, doctors do not need to use methods that increase the risk of puncture (such as moving the puncture needle angle perpendicular to the skin or inserting the needle away from the center of the probe) in order to puncture deeper tissues as in traditional in-plane puncture, which further simplifies the operation process.

[0024] Improve the success rate of puncture The combination of more accurate puncture point determination, complete display of blood vessel direction, and reduced operational difficulty significantly improves the success rate of puncture. Compared with traditional blind puncture or puncture methods that rely on doctor's experience, the device uses ultrasound guidance combined with automatic adjustment to greatly reduce the possibility of puncture failure.

[0025] Adapt to various puncture needs The device's adjustment mechanism is highly flexible. Whether it is for superficial or deep tissue puncture, the angle, distance and depth of the puncture needle can be adjusted to meet different puncture requirements. This makes the device more widely used in clinical puncture in cardiology and suitable for a variety of puncture scenarios such as subclavian vein puncture.

[0026] In summary, the cardiology clinical puncture device that is easy to adjust the puncture angle effectively solves the problem in the prior art that the ultrasound display section cannot fully display the direction of the blood vessels and the optimal puncture point cannot be quickly determined when the auxiliary bracket is manually moved through the clever cooperation of the fixing mechanism, the adjustment mechanism (including the rotation adjustment component, the distance adjustment component, the depth adjustment component) and the controller. It can improve the accuracy of puncture point determination, fully display the direction of the blood vessels, reduce the difficulty of doctors' operation, thereby improving the success rate of puncture, and adapt to a variety of puncture needs, providing a better technical solution for clinical puncture in cardiology. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 It is a schematic diagram of the overall structure provided by an embodiment of the present invention; Figure 2 is a side view provided by an embodiment of the present invention; Figure 3 It is a structural schematic diagram of a rotation adjustment component and a distance adjustment component provided by an embodiment of the present invention; Figure 4 yes Figure 3 The enlarged view of point W in the figure; Figure 5 yes Figure 2 Enlarged view of Q in the figure; Figure 6 It is a schematic diagram of the structure of a depth adjustment component provided in an embodiment of the present invention.

[0029] Explanation of the accompanying drawings: 100, fixing mechanism; 110, rotating sleeve; 120, fixing sleeve; 130, positioning bolt; 140, limiting block; 150, rubber sleeve; 200, rotation adjustment assembly; 210, splint; 220, fixing shaft; 230, supporting shaft; 240, stepping motor; 300, distance adjustment assembly; 310, magnet; 320, supporting spring; 330, electromagnet; 340, extension shaft; 350, limiting block; 360, positioning sleeve; 370, positioning block; 380, positioning spring; 400, depth adjustment assembly; 410, supporting seat; 420, driving motor; 430, transmission shaft; 440, conveyor belt; 500, controller; 510, position sensor; 520, distance sensor. DETAILED DESCRIPTION

[0030] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0031] In the description of the present invention, it should be noted that, unless otherwise specified, the meaning of "multiple" is two or more; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0032] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] The following is combined with Figure 1-6 The present application is further described in detail. An embodiment of the present application discloses a clinical puncture device for cardiology that is convenient for adjusting the puncture angle.

[0034] Reference Figure 1 and Figure 2 As shown, the present invention provides a cardiology clinical puncture device that is convenient for adjusting the puncture angle, which mainly includes a fixing mechanism 100 and an adjusting mechanism.

[0035] The fixing mechanism 100 is designed to wrap around the external structure of the fixed ultrasound probe, ensuring the stability of the ultrasound probe during use and allowing the detection end of the ultrasound probe to extend so as to directly contact the patient's skin for detection. The ultrasound probe can be firmly fixed without affecting the detection function, thereby effectively avoiding the problem of inaccurate blood vessel direction display caused by the displacement of the ultrasound probe position, and improving the integrity of the blood vessel direction display.

[0036] The adjustment mechanism is installed on the fixing mechanism 100 and is used to carry and place the puncture needle. The adjustment mechanism has the function of accurately adjusting the puncture angle and extension length of the puncture needle. Through this adjustable design, the doctor can quickly and accurately determine the optimal puncture point according to the actual vascular conditions, greatly reducing the risk of not being able to quickly determine the optimal puncture point when manually moving the auxiliary stent. For example, when facing patients of different body shapes and different vascular directions, the adjustment mechanism can flexibly adjust the angle and length of the puncture needle to adapt to various complex puncture requirements, thereby improving the success rate of the puncture.

[0037] Reference Figure 1 and Figure 2 As shown, the fixing mechanism 100 includes a rotating sleeve 110 and a rubber sleeve 150 .

[0038] The rubber sleeve 150 is sleeved on the probe end of the ultrasound probe, and its surface has a certain degree of roughness, which can significantly increase the friction between the ultrasound probe and the ultrasound probe, thereby better protecting the ultrasound probe from external damage. In addition, the rubber sleeve 150 is set through the inside, and this structural design ensures that the probe end of the ultrasound probe can contact the patient's skin without obstacles, ensuring the smoothness of ultrasound transmission, so that ultrasound can accurately detect the subcutaneous blood vessels and improve the accuracy of blood vessel positioning.

[0039] The rotating sleeve 110 is sleeved on the probe body of the ultrasound probe, and the adjustment mechanism is firmly fixed on the rotating sleeve 110. This layout allows the ultrasound probe to be adjusted in position along the circumferential direction of the probe, thereby achieving flexible adjustment of the orientation of the ultrasound probe. For example, when encountering patients of different body sizes or blood vessels of different directions, the ultrasound probe can be adjusted to the optimal detection angle by rotating the sleeve 110 to clearly display the blood vessel position. At the same time, the rotating sleeve 110 can be fixed to the patient's clavicle by a connecting belt, an elastic band or a sleeve structure, accurately corresponding to the blood vessel area that needs to be punctured, avoiding the problem of blood vessel positioning deviation due to device movement.

[0040] The fixing mechanism 100 is further provided with a positioning bolt 130, a limiting block 140 and a fixing sleeve 120. The fixing sleeve 120 is fixedly connected to the circumferential side wall of the rotating sleeve 110, and the limiting block 140 is slidably arranged in the fixing sleeve 120 along the radial direction of the rotating sleeve 110. The positioning bolt 130 is threadedly connected to the fixing sleeve 120, and the length of the positioning bolt 130 is extended along the radial direction of the fixing sleeve 120, and the positioning bolt 130 is rotatably arranged on the limiting block 140, so that when the positioning bolt 130 is rotated, the limiting block 140 can slide radially in the fixing sleeve 120. During use, the rotating sleeve 110 is first rotated to drive the ultrasonic probe to adjust to the position directly above the blood vessel to be punctured. At this time, the positioning bolt 130 is rotated to drive the limit block 140 to move, so that the limit block 140 is pressed against the ultrasonic probe, thereby fixing the rotating sleeve 110 and the adjustment mechanism on the rotating sleeve 110, effectively preventing the puncture accuracy from being affected by the displacement of the ultrasonic probe during the puncture process.

[0041] Reference Figure 1 and Figure 2 As shown, the adjustment mechanism includes a rotation adjustment component 200 , a distance adjustment component 300 , a depth adjustment component 400 and a controller 500 .

[0042] One end of the rotation adjustment component 200 is connected to the rotation sleeve 110. The rotation adjustment component 200 extends along the axial direction of the rotation sleeve 110 with the connection point with the rotation sleeve 110 as the center of the circle, and swings in the angular direction with the axial direction perpendicular to the rotation sleeve 110 as the rotation axis. This design can accurately adjust the puncture angle of the puncture needle during the puncture process. For example, when encountering blood vessels with different directions, the puncture needle can be adjusted to the optimal puncture angle by rotating the adjustment component 200, thereby improving the success rate of puncture and reducing damage to surrounding tissues.

[0043] The distance adjustment component 300 is connected to the end of the rotation adjustment component 200 away from the center of rotation. Because the distance adjustment component 300 rotates at the same angle as the angle of the rotation adjustment component 200 under the drive of the rotation adjustment component 200, it can be ensured that the stability of the overall structure of the puncture needle is not affected while adjusting the angle. The end of the distance adjustment component 300 away from the rotation adjustment component 200 is connected to the depth adjustment component 400, so that the distance between the puncture needle and the patient's skin can be changed. This function is particularly important for patients with different body shapes and skin thicknesses. The initial position of the puncture needle can be accurately adjusted according to the individual differences of the patient, avoiding puncture failure due to improper initial position or the pain caused by secondary puncture.

[0044] The depth adjustment component 400 is used to carry the puncture needle and can drive the puncture needle to adjust the depth distance along the distance adjustment extension direction perpendicular to the distance adjustment component 300. This function realizes the precise control of the insertion depth of the puncture needle. For example, when it is necessary to puncture a blood vessel at a specific depth, the depth adjustment component 400 can accurately deliver the puncture needle to the target depth, thereby improving the accuracy of puncture and reducing the risk of accidentally injuring other tissues.

[0045] The controller 500 is electrically connected to the rotation adjustment component 200, the distance adjustment component 300, the depth adjustment component 400 and the ultrasonic machine. The controller 500 can respectively control the rotation adjustment component 200, the distance adjustment component 300 and the depth adjustment component 400 according to the feedback information of the ultrasonic image. This closed-loop control system makes the entire puncture process more intelligent and precise. For example, when the ultrasonic image shows that the puncture needle is close to the target blood vessel but has not yet reached it, the controller 500 will fine-tune each component according to the image information so that the puncture needle can accurately reach the target blood vessel, greatly improving the success rate and safety of the puncture operation.

[0046] Reference Figure 2 and Figure 3 As shown, the rotation adjustment assembly 200 includes a clamping plate 210 , a fixing shaft 220 , a supporting shaft 230 and a stepping motor 240 .

[0047] The clamping plate 210 is fixedly connected to the outer circumferential side wall of the rotating sleeve 110 and is arranged near the top of the rotating sleeve 110. Such a layout enables the clamping plate 210 to stably provide a support point for subsequent components, while having a large rotation space, thereby ensuring the mobility of the entire device. The fixed shaft 220 is rotatably mounted on the clamping plate 210, and its axial direction is arranged along the radial direction of the rotating sleeve 110. This design ensures that the fixed shaft 220 can perform precise rotation operations within a specific direction range, laying the foundation for subsequent angle adjustment.

[0048] The support shaft 230 is fixedly connected to the fixed shaft 220, and its axial direction is perpendicular to the axial direction of the fixed shaft 220, and the support shaft 230 is extended along the axial length direction of the rotating sleeve 110. One end of the support shaft 230 away from the fixed shaft 220 is used to install the distance adjustment component 300. This structure allows the support shaft 230 to swing when the fixed shaft 220 rotates. Since the support shaft 230 is connected to the distance adjustment component 300, the rotational motion of the fixed shaft 220 is converted into the swinging motion of the support shaft 230, which is then transmitted to the distance adjustment component 300, thereby achieving accurate adjustment of the angle of the puncture needle. For example, when the direction of the blood vessel suddenly changes during the puncture process, the angle of the puncture needle can be adjusted quickly and accurately through this structure, thereby improving the success rate of the puncture and reducing damage to the surrounding tissues.

[0049] The stepper motor 240 is fixedly connected to the outer circumferential side wall of the rotating sleeve 110, and its output shaft is fixedly connected to the fixed shaft 220 coaxially, and the stepper motor 240 is electrically connected to the controller 500. Thus, the stepper motor 240 drives the fixed shaft 220 to rotate under the control of the controller 500. The stepper motor 240 has the advantages of precise positioning and stable operation. When the controller 500 receives the ultrasonic image feedback information, it can accurately calculate the angle to be adjusted and send the instruction to the stepper motor 240. The stepper motor 240 rotates the corresponding angle accurately according to the instruction, thereby driving the fixed shaft 220 to rotate. The rotating fixed shaft 220 carries the support shaft 230 to swing, and finally achieves the angle adjustment. This process has a high degree of automation, which greatly reduces the human operation error and improves the accuracy and safety of the puncture operation.

[0050] Reference Figure 2 and Figure 3 As shown, the distance adjustment assembly 300 includes an extension shaft 340, a support spring 320, a magnet 310, an electromagnet 330 and a positioning assembly.

[0051] The support shaft 230 is provided with an inner cavity with an opening located at one end away from the fixed shaft 220, and the extension shaft 340 is slidably arranged in the inner cavity, and one end extends out to be connected and installed on the degree adjustment component. This sliding arrangement provides a physical basis for the extension and retraction of the extension shaft 340, and is one of the key structures for achieving distance adjustment. The support spring 320 is installed in the inner cavity, one end of which abuts against one end of the extension shaft 340 located in the inner cavity, and the other end abuts against the bottom of the inner cavity, so that the extension shaft 340 has a thrust to push outward. This design utilizes the elastic potential energy principle of the spring. When there is no other external force, the support spring 320 can push the extension shaft 340 out to ensure that the extension shaft 340 is in an extended state in the initial state, which helps to quickly establish the initial puncture path during the puncture process.

[0052] The magnet 310 is fixedly connected to the top of the extension shaft 340 located in the inner cavity, the electromagnet 330 is fixedly connected to the bottom of the inner cavity, and the electromagnet 330 is electrically connected to the controller 500. After the controller 500 receives the ultrasonic image feedback information, it can accurately calculate the length that needs to be extended, and adjust the extension length of the extension shaft 340 by controlling the magnetic force of the electromagnet 330. For example, when encountering a sudden change in tissue density during the puncture process, the controller 500 quickly adjusts the magnetic force of the electromagnet 330 according to the ultrasonic image feedback, thereby accurately controlling the extension length of the extension shaft 340 to adapt to the new puncture depth requirements and improve puncture accuracy and safety.

[0053] When the magnetic force of the electromagnet 330 is greater than the elastic force of the support spring 320, the extension shaft 340 is retracted under the action of the magnetic force; when the magnetic force of the electromagnet 330 is less than the elastic force of the support spring 320, the extension shaft 340 is extended under the action of the spring elastic force, and in this process, the magnetic force is controlled to prevent the extension shaft 340 from being overextended. This adjustment mechanism based on the interaction between magnetic force and elastic force can achieve fine control of the position of the extension shaft 340, and effectively prevent puncture deviation caused by the extension shaft 340 moving too fast or too slow.

[0054] A position sensor 510 is fixedly mounted on the extension shaft 340, and the position sensor 510 is electrically connected to the controller 500, so as to promptly feedback the extension position of the extension shaft 340. The existence of the position sensor 510 enables the entire system to have a real-time monitoring function, and it can timely transmit the actual position information of the extension shaft 340 to the controller 500, and the controller 500 then performs further precise control based on this information, forming a closed-loop control system, which greatly improves the stability and reliability of the system.

[0055] The positioning assembly is mounted on the support shaft 230 and is used in conjunction with the electromagnet 330 to limit the extension of the extension shaft 340. When the electromagnet 330 has no magnetic force, the limiting ability of the positioning assembly is insufficient to offset the elastic force of the support spring 320. This design ensures that when the electromagnet 330 loses its function, the extension shaft 340 will not extend indefinitely due to the elastic force of the support spring 320, providing a guarantee for the safe operation of the entire system.

[0056] Reference Figure 3 and Figure 4 As shown, the positioning assembly includes a positioning block 370, a positioning sleeve 360, a positioning spring 380 and a plurality of limiting blocks 350, and the plurality of limiting blocks 350 are arranged in sequence along the axial direction of the extension shaft 340. The positioning sleeve 360 ​​is fixedly mounted on the outer wall of the support shaft 230, and the positioning sleeve 360 ​​is provided with an accommodating cavity with an opening located on one side of the support shaft 230 along the radial direction of the support shaft 230, and the end of the positioning sleeve 360 ​​away from the support shaft 230 is penetrated by a through cavity, and the support shaft 230 is provided with a through hole corresponding to the through cavity. The positioning block 370 penetrates the through cavity, the accommodating cavity and the through hole in sequence. The positioning spring 380 is sleeved on the positioning block 370, one end of which abuts on the positioning sleeve 360, and the other end abuts on the side wall of the support shaft 230, so as to push the positioning block 370 to abut against the limiting block 350 or between the limiting blocks 350. This structural design cleverly utilizes the elastic force of the spring and the position relationship of the limit block 350, and can accurately position the extension position of the extension shaft 340 in different situations. For example, after the puncture reaches the target position, the positioning component can firmly fix the position of the extension shaft 340 to prevent it from moving unnecessarily, which is crucial to ensure that the puncture needle accurately reaches the lesion site.

[0057] Reference Figure 5 and Figure 6 As shown, the depth adjustment assembly 400 includes a support seat 410 and two drive groups. The support seat 410 is fixedly connected to the bottom end of the extension shaft 340, and its main function is to carry the puncture needle. The two drive groups are symmetrically arranged on the support seat 410, and are located on both sides of the puncture needle during the use of the puncture needle. A guide cavity is opened on the support seat 410, and the two drive groups are respectively arranged in the guide cavity and arranged oppositely.

[0058] Such a structural design enables the depth adjustment assembly 400 to accurately control the moving direction and position of the puncture needle. The two symmetrically arranged drive groups and the guiding function of the guide cavity can effectively prevent the puncture needle from deviating during the depth adjustment process, thereby improving the accuracy of the puncture operation.

[0059] The driving group includes a driving motor 420, a transmission shaft 430, a conveyor belt 440 and a distance sensor 520. The driving motor 420 is fixedly mounted on the support base 410, and the transmission shaft 430 is rotatably mounted on the support base 410. The output shaft of the driving motor 420 is arranged parallel to the axis of the transmission shaft 430 and arranged along the extension direction of the puncture needle. The conveyor belt 440 is sleeved on the transmission shaft 430 and the output shaft of the driving motor 420, and the conveyor belt 440 is driven to move by the driving motor 420. This design utilizes the transmission principle. When the driving motor 420 is running, the rotation of its output shaft is transmitted to the transmission shaft 430 through the conveyor belt 440, thereby realizing the transmission of power. This transmission method is efficient and stable, which can ensure the smooth movement of the puncture needle during the depth adjustment process and reduce the vibration or jamming caused by poor power transmission.

[0060] The conveyor belt 440 is attached to the puncture needle, and the conveyor belts 440 located on both sides of the puncture needle can drive the puncture needle to move forward or backward during the conveying process of the conveyor belt 440. This driving method that directly acts on the puncture needle can more accurately control the moving distance of the puncture needle, avoids the energy loss and precision reduction problems that may occur in the traditional indirect driving method, and improves the accuracy of puncture depth adjustment.

[0061] The distance sensor 520 is fixedly mounted on the inner wall of the guide cavity of the support seat 410, and is used to monitor the travel distance of the puncture needle and feed back the information to the controller 500. The drive motor 420 and the distance sensor 520 are both electrically connected to the controller 500, and the controller 500 adjusts the puncture depth of the puncture needle by the puncture needle displacement distance fed back by the distance sensor 520. For example, during the puncture process, when the distance sensor 520 detects that the puncture needle has reached a predetermined depth, it transmits a signal to the controller 500, and the controller 500 then controls the drive motor 420 to stop working or change the direction of rotation, thereby achieving precise control of the puncture depth. This method not only improves the safety of the puncture operation, but also can adapt to different puncture requirements, such as flexible adjustment for different tissue thicknesses or lesion depths.

[0062] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A clinical puncture device for cardiology that facilitates adjustment of puncture angles, characterized in that: include: A fixing mechanism (100) is used to place and carry a fixed ultrasound probe, and to enable a detection end of the ultrasound probe to contact the patient's skin; An adjustment mechanism, mounted on the fixing mechanism (100), used to carry the puncture needle and adjust the angle of the puncture needle; Wherein, the adjustment mechanism comprises a rotation adjustment component (200), a distance adjustment component (300), a depth adjustment component (400) and a controller (500); One end of the rotation adjustment component (200) is connected to the fixing mechanism (100), and swings in an angular direction with the connection point with the fixing mechanism (100) as the center of the circle and the main body length direction of the detection end of the ultrasound probe perpendicular to the patient's skin as the starting point, and the other end of the rotation adjustment component (200) is connected to the distance adjustment component (300); driven by the rotation adjustment component (200), the distance adjustment component (300) rotates at the same angle as the angle of the rotation adjustment component (200), and the end of the distance adjustment component (300) away from the rotation adjustment component (200) is connected to the depth adjustment component (300). The depth adjustment component (400) is connected to the rotation adjustment component (200), thereby being able to drive the depth adjustment component (400) to adjust towards or away from the center of the rotation adjustment component (200); the depth adjustment component (400) is used to carry the puncture needle, and is able to drive the puncture needle to adjust the depth distance along a distance adjustment extension direction perpendicular to the distance adjustment component (300); the controller (500) is respectively electrically connected to the rotation adjustment component (200), the distance adjustment component (300) and the depth adjustment component (400), so as to respectively realize corresponding control of the rotation adjustment component (200), the distance adjustment component (300) and the depth adjustment component (400).

2. A cardiology clinical puncture device that facilitates adjustment of puncture angle according to claim 1, characterized in that: The fixing mechanism (100) comprises a rotating sleeve (110), a positioning bolt (130) and a limiting block (140): The rotating sleeve (110) is sleeved on the probe body of the ultrasonic probe, and the rotating sleeve (110) can rotate along the circumferential direction of the probe body to adjust the position of the regulating mechanism; A fixed sleeve (120) is fixedly mounted on the circumferential side wall of the rotating sleeve (110) in a radial direction thereof, the limit block (140) is slidably disposed in the fixed sleeve (120), the positioning bolt (130) penetrates the fixed sleeve (120) in a radial direction of the rotating sleeve (110), the positioning bolt (130) is screwed to the fixed sleeve (120) and an end portion thereof is rotatably disposed on the limit block (140); The limiting block (140) is rotated to press against the ultrasonic probe via the positioning bolt (130) to fix the rotating sleeve (110) and the ultrasonic probe.

3. A cardiology clinical puncture device that facilitates adjustment of puncture angle according to claim 1 or 2, characterized in that: The fixing mechanism (100) further comprises a rubber sleeve (150), wherein the rubber sleeve (150) is sleeved on the probe end of the ultrasonic probe and is used to increase friction so as to better fix the ultrasonic probe.

4. A cardiology clinical puncture device that facilitates adjustment of puncture angle according to claim 2, characterized in that: The rotation adjustment assembly (200) comprises a clamping plate (210), a fixed shaft (220) and a support shaft (230): The clamping plate (210) is fixedly connected to the outer circumferential side wall of the rotating sleeve (110); The fixed shaft (220) is rotatably disposed on the clamping plate (210), and the axial extension direction of the fixed shaft (220) is perpendicular to the length extension direction of the ultrasonic probe; One end of the support shaft (230) is fixedly connected to the fixed shaft (220), the support shaft (230) is arranged perpendicular to the axis of the fixed shaft (220), and the other end of the support shaft (230) is extended along the length direction of the ultrasonic probe toward the detection end thereof; A stepper motor (240) is fixedly connected to the clamping plate (210), and an output shaft of the stepper motor (240) is fixedly connected to the fixed shaft (220) to drive the output shaft to rotate; The stepper motor (240) is electrically connected to a controller (500) to control the rotation angle of the stepper motor (240).

5. A cardiology clinical puncture device that facilitates adjustment of puncture angle according to claim 4, characterized in that: The distance adjustment assembly (300) comprises an extension shaft (340), a support spring (320) and a positioning assembly: The support shaft (230) is provided with an inner cavity whose opening is located at one end away from the fixed shaft (220), the extension shaft (340) is slidably disposed in the inner cavity, the support spring (320) is installed in the inner cavity, one end of the support spring (320) abuts against the bottom surface of the inner cavity, the other end of the support spring (320) abuts against one end of the extension shaft (340), and the other end of the extension shaft (340) is connected to the rotation adjustment component (200); The positioning assembly is mounted on a side wall of the support shaft (230) to limit the extension length of the extension shaft (340).

6. A cardiology clinical puncture device that facilitates adjustment of puncture angle according to claim 5, characterized in that: The positioning assembly comprises a positioning block (370), a positioning sleeve (360) and a positioning spring (380); the positioning sleeve (360) is fixedly mounted on the outer wall of the support shaft (230); the positioning sleeve (360) is provided with an accommodating cavity with an opening located on one side of the support shaft (230) along the radial direction of the support shaft (230); the positioning sleeve (360) is provided with a through cavity at one end away from the support shaft (230); the positioning block (370) penetrates the through cavity, the accommodating cavity and the side wall of the support shaft (230) to limit the sliding of the extension shaft (340); the positioning block (370) is provided with a limiting sleeve that slides in the accommodating cavity; the positioning spring (380) is sleeved on the positioning block (370), one end of which abuts against the limiting sleeve, and the other end abuts against the side wall of the support shaft (230).

7. A cardiology clinical puncture device that facilitates adjustment of puncture angle according to claim 6, characterized in that: The rotation adjustment assembly (200) further comprises a magnet (310), an electromagnet (330) and a plurality of position-limiting latch teeth, wherein the plurality of position-limiting latch teeth are arranged in sequence along the axial direction of the extension shaft (340), the positioning block (370) is used to be latched in the latch teeth, the magnet (310) is fixedly mounted on the top of the extension shaft (340), the electromagnet (330) is mounted on the bottom of the inner cavity, and the electromagnet (330) is electrically connected to the controller (500); The controller (500) controls the extension length of the extension shaft (340) by controlling the magnetic force of the electromagnet (330).

8. A cardiology clinical puncture device that facilitates adjustment of puncture angle according to claim 1, characterized in that: The depth adjustment assembly (400) comprises a support base (410) and two drive groups. The support base (410) is provided with a guide cavity through which the needle of the puncture needle passes. The two drive groups are symmetrically arranged on both sides and are electrically connected to the controller (500) so that their extension lengths can be adjusted through the controller (500).

9. A cardiology clinical puncture device that facilitates adjustment of puncture angle according to claim 8, characterized in that: The driving group comprises a driving motor (420), a transmission shaft (430) and a conveyor belt (440); the driving motor (420) is fixedly mounted on the support seat (410); the transmission shaft (430) is rotatably mounted on the support seat (410); the conveyor belt (440) is respectively sleeved on the output shaft of the driving motor (420) and the transmission shaft (430); the conveyor belt (440) contacts the needle of the puncture needle and drives the needle to extend and retract by utilizing static friction.

10. A cardiology clinical puncture device that facilitates adjustment of puncture angle according to claim 1, characterized in that: It also includes a position sensor (510) and a distance sensor (520) which are respectively electrically connected to the controller (500); the position sensor (510) is arranged on the distance adjustment component (300) to feedback its position; and the distance sensor (520) is installed on the depth adjustment component (400) to feedback its extension length.

Images