An ultrasound-guided synchronous positioning system for intraspinal anesthesia

Abstract

The present invention discloses an ultrasonic-guided synchronous positioning system for intraspinal anesthesia, which comprises the following components: an ultrasonic component, including an ultrasonic probe and an ultrasonic positioning component, where the ultrasonic probe is used to obtain ultrasonic images, and the support feet on the ultrasonic positioning component are switched from a retracted state to an extended state, so as to position the placement state of the ultrasonic probe at this time in a multi-point support manner; a puncture component, including an anesthesia needle and a puncture positioning component, and the support state of the support feet on the puncture positioning component is synchronized with that of the support feet on the ultrasonic positioning component, so that the anesthesia needle can be placed at the position where the ultrasonic probe has been placed according to the placement state of the ultrasonic probe. The operation of the present invention is simple, reduces the deviation in the operation, and is beneficial to ensuring the accuracy of puncture.

Description

Technical Field

[0001] The present invention relates to the field of medical auxiliary devices, and particularly to a synchronous positioning system for spinal anesthesia under ultrasound guidance. Background Art

[0002] Spinal anesthesia is to inject drugs through a puncture needle into the spinal canal. Spinal anesthesia is divided into epidural anesthesia and subarachnoid anesthesia. After injecting drugs into the epidural space, blockage is achieved, that is, epidural anesthesia within the spinal canal. The existing operation method of spinal anesthesia usually requires a physician to determine the puncture interval and puncture point based on ultrasound images combined with experience, and draw lines on the skin for marking (as shown in Figure 12 ), and then the anesthesiologist performs puncture according to the above-mentioned marked lines in combination with experience. Since this type of anesthesia operation method requires multiple doctors to cooperate in sequence, it is easy to have errors in the connection process of the front and back operations, and has high requirements for the operation level of doctors and the cooperation level between doctors. At the same time, when the ultrasound image is judged correctly, there may be deviations in the accuracy of the marking line and the anesthesiologist's understanding of the puncture angle of the anesthesia needle, thus affecting the accuracy of the spinal anesthesia operation under ultrasound guidance.

[0003] The invention patent with the application number 202111090546.7 discloses a positioning and scanning system for spinal anesthesia under ultrasound guidance, including an ultrasound probe, a needle guide for guiding the insertion of the anesthesia needle tube; a first laser locator fixedly installed on the ultrasound probe; a second laser locator for being installed on the needle guide; and a positioning patch for being applied on the back. This invention can achieve the positioning of angles and directions in a three-dimensional space through the projection rays of multiple rays on a plane, thus facilitating the anesthesiologist to determine the puncture direction and puncture point according to the determined coordinate system, and avoiding the problem of inaccurate puncture methods caused by misjudgment of the anesthesiologist. However, since this invention uses the method of irradiating point marking and positioning with laser rays, it has high requirements for the stability of the operator's hand-held operation during secondary alignment and positioning, and there is an unstable situation in the position state of the device after alignment, resulting in deviations in the positions of the ultrasound probe and the anesthesia needle during the two alignments before and after, and thus affecting the accuracy of spinal anesthesia to a certain extent.

[0004] The invention patent with the application number 202010739952.0 discloses an adjustable anesthesia-assisted positioning puncture device for ultrasonic anesthesia, which includes an anesthesia adjustable fixing module, a one-way limiting mechanism module, and a multi-angle assisted positioning injection module. The upper part of the adjustable anesthesia-assisted positioning puncture device is fixedly connected to the existing ultrasonic probe through the anesthesia adjustable fixing module, and the lower part is directly in contact with the skin, and positioning is carried out by using the one-way limiting mechanism module; then the puncture needle is inserted into the multi-angle assisted positioning injection module, and the puncture needle slides down along the puncture path through the multi-angle assisted positioning injection module to the skin surface, and punctures downward to complete the anesthesia technique. In the process of secondary positioning, the puncture angle of the puncture needle is limited by the multi-angle puncture frame in this invention, there are limitations in use, and the selection of the puncture angle on the multi-angle puncture frame is affected by the anesthesiologist's experience in interpreting ultrasonic images, and there are prone to deviations. Summary of the Invention

[0005] The purpose of the present invention is to provide an ultrasonic-guided intraspinal anesthesia synchronous positioning system that improves the accuracy of puncture operations.

[0006] The technical solution adopted by the present invention to solve the above problems is:

[0007] An ultrasonic-guided intraspinal anesthesia synchronous positioning system includes the following components:

[0008] An ultrasonic component, including an ultrasonic probe and an ultrasonic positioning component. The ultrasonic probe is used to obtain ultrasonic images. When the ultrasonic images meet the requirements of the puncture gap, puncture point, and puncture angle, the ultrasonic positioning component switches from the retracted state to the deployed state through its upper support feet, so as to position the placement state of the ultrasonic probe at this time in a multi-point support manner;

[0009] A puncture component, including an anesthesia needle and a puncture positioning component. The puncture positioning component has the same structure as the ultrasonic positioning component. The support feet on the puncture positioning component synchronize the support state of the support feet on the ultrasonic positioning component, so that the anesthesia needle can be placed at the position where the ultrasonic probe has been placed according to the placement state of the ultrasonic probe, that is, the central axis of the anesthesia needle can be on the same straight line as the central axis of the ultrasonic probe.

[0010] As a further improvement of the above technical solution, both the ultrasonic positioning component and the puncture positioning component include a driving unit. The driving unit is used to drive the corresponding support feet to be unfolded in stages from the folded state. The support feet include a first movable rod and a second movable rod. The support feet on the ultrasonic positioning component make the included angle between the overall support feet and the ultrasonic positioning component gradually increase through the driving unit until the support end of the support feet contacts the placement position, and during this process, the unfolding restriction between the first movable rod and the second movable rod is released and they are completely unfolded relative to each other.

[0011] As a further improvement of the above technical solution, the ultrasonic positioning component transmits the control signal for deploying the driving support feet thereon to the puncture positioning component in a wired or wireless manner.

[0012] As a further improvement of the above technical solution, when the ultrasonic probe is located on the ultrasonic positioning component, the central axis of the ultrasonic positioning component is in the same straight line as the central axis of the ultrasonic probe; when the anesthetic needle is located on the puncture positioning component, the central axis of the puncture positioning component is in the same straight line as the central axis of the anesthetic needle.

[0013] As a further improvement of the above technical solution, when the ultrasonic image meets the requirements of the puncture gap, puncture point and puncture angle, the central axis of the ultrasonic probe is the puncture angle, and the center point of the lower end face of the ultrasonic probe is the puncture point.

[0014] As a further improvement of the above technical solution, the deployment stroke of one or more of the support feet is different from the deployment stroke of the remaining support feet. Each support foot on the ultrasonic positioning component can rotate synchronously relative to the ultrasonic positioning component, so that the deployment length of each support foot can meet the requirement of supporting the ultrasonic positioning component, which is beneficial to reducing the placement limitation of the ultrasonic positioning component, ensuring the support of the support feet for the ultrasonic positioning component at different placement positions, and thus guaranteeing the accuracy of puncture position positioning.

[0015] As a further improvement of the above technical solution, the support feet drive the driving unit to stop driving when the support ends of the support feet contact the skin through the pressure sensors thereon, avoiding excessive depression of the contact position between the support feet on the ultrasonic positioning component and the placement position, which is beneficial to ensuring the accuracy of the subsequent placement of the puncture positioning component.

[0016] As a further improvement of the above technical solution, the puncture positioning component guides the anesthetic needle to move linearly along the axis of the puncture positioning component by installing a needle guide sleeve, which is beneficial to ensuring the stability of the movement of the anesthetic needle. The length of the needle guide sleeve exposed outside the puncture positioning component is the same as the length of the ultrasonic probe exposed outside the ultrasonic positioning component.

[0017] As a further improvement of the above technical solution, the contact positions between the support feet of the ultrasonic positioning component and the placement position are marked separately. The separate marks can correspond to the support feet. The separate marks use numerical symbols or letter symbols, and the marks are convenient and easy to identify.

[0018] As a further improvement of the above technical solution, the information of the ultrasonic image includes one or more of the spinal canal gap contour, the position of the spinal canal gap relative to the spinal midline, and the spinal canal gap depth.

[0019] Compared with the prior art, the present invention has the following advantages and effects:

[0020] The present invention realizes the positioning of the puncture position and angle through the multi-point support of the support feet on the ultrasonic positioning component at the placement position when the ultrasonic probe is at the optimal puncture angle. By combining the synchronization of the support states between the support feet on the ultrasonic positioning component and the puncture positioning component, when the ultrasonic component and the puncture component are placed at the same position twice before and after, the central axis positions of the ultrasonic probe and the anesthetic needle are kept consistent, thereby improving the accuracy and success rate of puncture, facilitating the reduction of puncture-related complications, and enhancing the safety, comfort and satisfaction of patients.

[0021] Meanwhile, the operation steps of the present invention are simple, reducing the requirements of the device for the operation level of the user, facilitating the user to quickly achieve accurate intraspinal anesthesia operation, being conducive to popularization and avoiding the deviation existing in the operation connection between physicians, thereby ensuring the operation quality of intraspinal anesthesia. Description of the Drawings

[0022] Figure 1 is a schematic structural diagram of a synchronous positioning system for ultrasonic-guided intraspinal anesthesia in an embodiment.

[0023] Figure 2 is Figure 1 a schematic side structural diagram of the ultrasonic positioning component shown in

[0024] Figure 3 is Figure 1 a schematic internal structural sectional view of the side of the ultrasonic positioning component shown in

[0025] Figure 4 is Figure 3 a schematic bottom structural view of the fixing sleeve shown in

[0026] Figure 5 is Figure 3 a schematic structural diagram of the support foot shown in

[0027] Figure 6 is Figure 1 a schematic structural diagram of the driving module shown in

[0028] Figure 7 is Figure 1 a schematic internal structural sectional view of the side of the puncture positioning component shown in

[0029] Figure 8 is Figure 1 a schematic operation diagram when the ultrasonic component is actually used shown in

[0030] Figure 9 is Figure 1 a schematic structural diagram of the first usage state of the support foot on the positioning component shown in

[0031] Figure 10 isFigure 1 Schematic diagram of the second usage state of the support feet on the positioning component shown in

[0032] Figure 11 is Figure 1 Schematic diagram of the third usage state of the support feet on the positioning component shown in

[0033] Figure 12 Schematic diagram of the operation of traditional intraspinal anesthesia.

[0034] Among them, the ultrasonic positioning component 11, the puncture positioning component 12, the main body 2, the support sleeve 21, the fixing sleeve 22, the handle 23, the groove 24, the guiding channel 25, the convex ring 26, the ultrasonic probe 3, the convex block 31, the support feet 4, the first movable rod 41, the second movable rod 42, the ball head connecting mechanism 43, the support block 44, the mark 45, the limiting piece 46, the horizontal section 47, the vertical section 48, the driving unit 5, the second driving motor 51, the first slider 52, the first connecting rod 53, the second connecting rod 54, the second slider 55, the tension spring 56, the limiting block 57, the arc shape 58, the driving module 6, the first driving motor 61, the gear transmission mechanism 62, the gear 63, the external gear ring 64, the anesthesia needle 7, the needle guiding sleeve 8, the guiding piece 81, the needle guiding channel 82, the needle guiding seat 83. Specific embodiments

[0035] The present invention will be further described in detail below with reference to the accompanying drawings and through embodiments. The following embodiments are explanations of the present invention, and the present invention is not limited to the following embodiments.

[0036] Aiming at the situation in the existing operation method of ultrasound-guided intraspinal anesthesia that only marking the puncture point by scribing on the skin according to experience is possible, but the puncture angle and puncture direction of the anesthesia needle cannot be positioned, and there may be deviations in the accuracy of scribing and the anesthesiologist's understanding of the puncture angle of the anesthesia needle even when the ultrasound image is judged correctly, thus affecting the accuracy of the ultrasound-guided intraspinal anesthesia operation, the present invention provides a synchronous positioning system for ultrasound-guided intraspinal anesthesia.

[0037] See Figure 1 , a synchronous positioning system for ultrasound-guided intraspinal anesthesia, including the following components:

[0038] The ultrasonic component includes an ultrasonic positioning component 11 and an ultrasonic probe 3. The ultrasonic probe 3 is used to obtain an ultrasonic image. When the ultrasonic image meets the requirements of the puncture gap, puncture point and puncture angle, the central axis of the ultrasonic probe 3 is the puncture angle, and the center point of the lower end face of the ultrasonic probe 3 is the puncture point.

[0039] In this embodiment, the information of the ultrasonic image includes one or more of the spinal canal gap contour, the position of the spinal canal gap relative to the spinal midline, and the depth of the spinal canal gap.

[0040] The puncture assembly includes a puncture positioning assembly 12 and an anesthesia needle 7. The puncture positioning assembly 12 and the ultrasound positioning assembly 11 have the same structure. The supporting foot 4 on the puncture positioning assembly 12 is synchronized with the supporting state of the supporting foot 4 on the ultrasound positioning assembly 11, so that the anesthesia needle 7 can be placed at the position where the ultrasound probe 3 has been placed according to the placement state of the ultrasound probe 3, that is, the central axis of the anesthesia needle 7 can be in the same straight line as the central axis of the ultrasound probe 3.

[0041] The ultrasonic positioning assembly 11 and the puncture positioning assembly 12 both include a main body 2, the main body 2 includes a support sleeve 21, a fixing sleeve 22 for fixing the ultrasonic probe 3, and a handle 23. When the ultrasonic probe 3 or the anesthesia needle 7 is located on the main body 2, the central axis of the main body 2 is on the same straight line as the central axis of any one of the two. Figure 2 , Figure 7 as shown in .

[0042] The fixing sleeve 22 is rotatably arranged in the hollow space of the supporting sleeve 21. A driving module 6 for driving the fixing sleeve 22 to rotate relative to the supporting sleeve 21 is installed on the supporting sleeve 21. The driving module 6 includes a first driving motor 61 and a gear transmission mechanism 62. The first driving motor 61 is installed on the supporting sleeve 21. The first driving motor 61 and the fixing sleeve 22 are connected to each other through the gear transmission mechanism 62. The gear transmission mechanism 62 includes a gear 63 and an outer gear ring 64. The gear 63 is fixed on the output shaft of the first driving motor 61. The outer gear ring 64 is meshed with the gear 63. The outer gear ring 64 is sleeved and fixed on the fixing sleeve 22. Figure 3 , Figure 6 The driving module drives the support sleeve to rotate relative to the fixed sleeve, so that the three support legs can rotate relative to the ultrasonic probe, so that the three support legs can be adjusted according to the tilt angle and tilt direction of the ultrasonic probe, that is, the unfolded length of the three support legs can meet the requirements of three-point support and fixation of the ultrasonic probe, as shown in FIG. Figure 8 shown.

[0043] The inner wall surface of the fixing sleeve 22 is provided with grooves 24 at two opposite positions for accommodating the two protrusions 31 on the ultrasonic probe 3 respectively. Figure 4 In this embodiment, the ultrasonic probe 3 can be fixed on the fixing sleeve 22 by using a buckle structure.

[0044] The lower end of the handle member 23 is threadedly connected to the upper end of the fixing sleeve 22. A guiding channel 25 is formed in the handle member 23 and penetrates through the handle member 23 along the axial direction of the handle member 23. The guiding channel 25 communicates with the hollow space of the fixing sleeve 22 and is used for guiding the cable of the ultrasonic probe 3 or the needle tube of the anesthetic needle 7 to pass through. The upper end of the handle member 23 is exposed outside the upper end of the support sleeve 21. For the convenience of the user's grip, a plurality of convex rings 26 arranged at equal intervals are provided on the upper end of the handle member 23, as Figure 2 , Figure 3 shown in.

[0045] In this embodiment, there are three support feet 4 on both the ultrasonic positioning assembly 11 and the puncture positioning assembly 12. The three support feet 4 are respectively hinged on the outer side surface of the main body member 2, as Figure 1 shown in.

[0046] The support foot 4 includes a first movable rod 41 and a second movable rod 42. The lengths of the first movable rods 41 in the three support feet 4 are the same. The lengths of two of the second movable rods 42 in the three support feet 4 are the same, and the length of the remaining second movable rod 42 is different from the lengths of the previous two second movable rods 42, as Figure 2 , Figure 3 shown in, so that during the simultaneous unfolding process of the three support feet 4, the unfolding strokes of two of the support feet 4 are the same, and the unfolding stroke of the remaining one support foot 4 is different from the unfolding strokes of the previous two support feet 4.

[0047] One end of the first movable rod 41 is hinged to the outer side surface of the main body member 2, and the other end of the first movable rod 41 is hinged to one end of the second movable rod 42. During use, in order to reduce the degree of skin depression caused when the support foot 4 abuts against the skin, the other end of the second movable rod 42 is connected with a support block 44 through a ball head connection mechanism 43, as Figure 5 shown in. A pressure sensor is installed at the central position of the bottom surface of the support block 44, so that when the support block contacts the skin, the pressure signal detected and fed back by the pressure sensor can be used to control the driving unit to stop driving the support foot, that is, when the pressure value detected by the pressure sensor exceeds the preset value, the driving unit stops operating. A mark 45 for distinguishing the three support feet 4 is provided on the outer side surface of the main body member 2. In this embodiment, the mark 45 adopts letter symbols A, B, and C, as Figure 1 shown in.

[0048] To prevent the support feet from being overly deployed or folded, a limiting piece 46 is provided along the upper edge of the first movable rod 41 at the other end of the first movable rod 41. The limiting piece 46 is integrally connected to the first movable rod 41. The limiting piece 46 is L-shaped and includes a horizontal section 47 and a vertical section 48. The horizontal section 47 is located on the stroke of the second movable rod 42 rotating outward relative to the first movable rod 41, and the vertical section 48 is located on the stroke of the second movable rod 42 rotating inward relative to the first movable rod 41, as Figure 5 shown in

[0049] See Figure 2 , and a driving unit 5 for driving the support feet 4 to retract and deploy radially along the main body member 2 is provided on the main body member 2.

[0050] The driving unit 5 includes a second driving motor 51, a first slider 52, a first connecting rod 53, a second connecting rod 54, and a second slider 55. The second driving motor 51 is installed on the outer side surface of the main body member 2. The first slider 52 is slidably arranged on the outer side surface of the main body member 2. The second driving motor 51 is used to drive the first slider 52 to move vertically in a straight line. In this embodiment, the second driving motor 51 is a screw motor, and the first slider 52 is sleeved on the output shaft of the screw motor in a threaded fit manner. The middle position of the first movable rod 41 and the first slider 52 are connected by the first connecting rod 53. The two ends of the first connecting rod 53 are respectively hinged to the first slider 52 and the first movable rod 41. The middle position of the second movable rod 42 and the second slider 55 are connected by the second connecting rod 54. The two ends of the second connecting rod 54 are respectively hinged to the second slider 55 and the second movable rod 42. The second slider 55 is slidably connected to the first movable rod 41. A tension spring 56 is provided between the other end of the first movable rod 41 and the second slider 55. The two ends of the tension spring 56 are respectively fixed to the other end of the first movable rod 41 and the second slider 55. A limiting block 57 is provided on the outer side surface of the main body member 2. One end of the limiting block 57 is integrally connected to the outer side surface of the main body member 2, and the other end of the limiting block 57 is located on the rotation stroke of the first movable rod 41. When the support feet 4 are not deployed, the other end of the limiting block 57 abuts against the second slider 55. The mutually abutting side surfaces between the limiting block 57 and the second slider 55 are both arc-shaped 58, as Figure 5 shown in

[0051] In this embodiment, the ultrasonic positioning assembly 11 transmits the control signal for driving the support feet 4 to deploy to the puncture positioning assembly 12 in a wireless manner.

[0052] Among them, control modules for controlling the operation of the driving units 5 thereon are provided on both the ultrasonic positioning assembly 11 and the puncture positioning assembly 12. The control module includes a controller, a power supply, and three motor drivers. A communication module is provided in the controller. The controller and the three motor drivers are all electrically connected to the power supply. The controller is connected to each motor driver through serial communication. The communication modules on the ultrasonic positioning assembly 11 and the puncture positioning assembly 12 perform wireless communication through the Bluetooth protocol.

[0053] For convenient operation, a remote controller can be used for control operation in this embodiment. A wireless communication module is provided on the remote controller. The communication module on the ultrasonic positioning assembly 11 performs wireless Bluetooth communication with the wireless communication module, is used to receive the Bluetooth data sent by the remote controller, and after the controller analyzes and processes the Bluetooth data, it is sent to the three motor drivers thereon to drive the second driving motor 51 in the three driving units 5 to operate. At the same time, when the second driving motor 51 on the ultrasonic positioning assembly 11 stops operating, the controller on the ultrasonic positioning assembly 11 packs the operation data of the three second driving motors 51 and sends it to the puncture positioning assembly 12 through the communication module. The controller on the puncture positioning assembly 12 analyzes and processes the received data and then sends it to the three motor drivers thereon to drive the second driving motor 51 in the three driving units 5 to operate, so as to make the deployment states of the three support feet on the ultrasonic positioning assembly 11 and the puncture positioning assembly 12 consistent.

[0054] In this embodiment, in addition to the wireless method, the ultrasonic positioning assembly 11 can also transmit the control signal to the puncture positioning assembly 12 in a wired manner.

[0055] In this embodiment, the puncture positioning assembly 12 guides the anesthetic needle 7 to move linearly along the axis of the puncture positioning assembly 12 by installing a needle guide sleeve 8. The needle guide sleeve 8 can be installed on the opening at the lower end of the support sleeve 21 by an interference connection method or a threaded connection method. When the needle guide sleeve 8 is installed on the main body part 2, the central axis of the needle guide sleeve 8 is in the same straight line as the central axis of the main body part 2. The length of the needle guide sleeve 8 exposed outside the puncture positioning assembly 12 is the same as the length of the ultrasonic probe 3 exposed outside the ultrasonic positioning assembly 11, as Figure 7 shown.

[0056] The needle guide sleeve 8 is conical. A plurality of guiding pieces 81 arranged at equal angles around the central axis of the needle guide sleeve 8 are integrally connected in the hollow space of the needle guide sleeve 8. A needle guide channel 82 for the needle tube of the anesthetic needle 7 to pass through is formed between the guiding pieces 81. The anesthetic needle 7 passes through the main body part 2 through the guiding channel 25. A needle guide seat 83 is provided in the hollow space of the needle guide sleeve 8. The needle tip of the anesthetic needle 7 can be inserted into the needle guide seat 83, and the tip of the needle tip can pass through the needle guide seat 83 and be exposed outside the lower end of the needle guide sleeve 8, as Figure 7 shown.

[0057] In summary, the usage method of the present invention is as follows:

[0058] Step 1: Obtain an ultrasonic image through the ultrasonic probe in the ultrasonic component until the ultrasonic image meets the requirements of the puncture gap, puncture point, and puncture angle;

[0059] Step 2: Drive the support sleeve to rotate relative to the fixed sleeve through the drive module on the ultrasonic positioning component in the ultrasonic component, so as to realize the rotation of the three support feet relative to the ultrasonic probe, so that the three support feet can be adjusted according to the tilt angle and tilt direction of the ultrasonic probe, that is, the extended lengths of the three support feet can meet the requirements for three-point support and fixation of the ultrasonic probe, as Figure 8 shown;

[0060] Step 3: Drive the corresponding support foot to expand through the drive unit on the ultrasonic positioning component in the ultrasonic component, so that the angle between the whole support foot and the ultrasonic positioning component gradually expands until the expansion limit between the first movable rod and the second movable rod on the support foot is released;

[0061] As Figure 9 , Figure 10 shown, when the first slider 52 is driven by the second drive motor 51 to move vertically downward, the first slider 52 drives the other end of the first movable rod 41 to rotate around the hinge position between the first movable rod 41 and the main body 2 through the first connecting rod 53, so that the angle between the first movable rod 41 and the main body 2 gradually expands. When the angle between the first movable rod 41 and the main body 2 reaches a specific angle, the second slider 55 and the limit block 57 are disengaged, and at this time, the locked state between the first movable rod 41 and the second movable rod 42 is released.

[0062] At the same time, the first movable rod and the second movable rod on the support foot are relatively expanded under the action of the tension spring until they are fully expanded, and at this time, the tension spring is in an un-stretched state;

[0063] As Figure 10 shown, the second slider 55 moves linearly from one end of the first movable rod 41 to the other end under the action of the tension spring 56, so that the second slider 55 drives the other end of the second movable rod 42 to rotate around the hinge position between the second movable rod 42 and the first movable rod 41 through the second connecting rod 54, so that the angle between the first movable rod 41 and the second movable rod 42 gradually expands to the maximum, and at this time, the first movable rod 41 and the second movable rod 42 are fully expanded, and the tension spring 56 is in an un-stretched state.

[0064] Subsequently, the angle between the whole support foot and the ultrasonic positioning component continues to expand under the action of the drive unit until the support end of the support foot contacts the skin, and at this time, the drive unit stops driving;

[0065] As Figure 10 , Figure 11 shown, during the process that the first slider 52 continues to move vertically downward, the angle between the first movable rod 41 and the main body 2 continues to gradually increase until the bottom surface of the support block 44 is in full contact with the skin. The pressure sensor on the support foot 4 detects the contact pressure between the support block 44 and the placement position, and transmits the detected pressure signal to the controller that controls the operation of the control drive unit 5, and the controller controls the operation of the second drive motor 51.

[0066] Finally, the contact positions between each support foot and the placement position are marked with corresponding distinguishing marks corresponding to the support feet.

[0067] According to the marks of the three support feet on the main body, different symbols are marked at the positions where the three support feet on the placement position are in contact, such as numerical symbols (1, 2, 3), letter symbols (A, B, C), etc. As Figure 8 shown, due to the movement limitation of the second drive motor on the first slider and the movement limitation of the tension spring on the second slider, the support feet can remain unchanged after being unfolded. Thus, by the corresponding cooperation between the positions marked with the three symbols and the three unchanged support feet, it can be ensured that the anesthetic needle on the puncture positioning assembly can maintain the same tilt angle and tilt direction as the ultrasonic probe.

[0068] Step 4: Synchronize the support state of the support feet on the ultrasonic positioning assembly to the support feet on the puncture positioning assembly, and place the puncture positioning assembly at the position where the ultrasonic positioning assembly has been placed in the same placement state as the ultrasonic positioning assembly through the distinguishing marks. When the anesthetic needle is pushed linearly along the axis of the main body, the tip of the anesthetic needle can penetrate from the puncture point and puncture angle determined by the ultrasonic probe, thereby reducing the error between the actual operation of the anesthetic needle and the ultrasonic image judgment.

[0069] The above content described in this specification is only an example of the present invention. Those skilled in the art to which the present invention pertains can make various modifications or supplements to the described specific embodiments or use similar methods for substitution, as long as they do not deviate from the content of this specification of the present invention or exceed the scope defined by this claims, they should fall within the protection scope of the present invention.

Claims

1. An ultrasonic-guided intraspinal anesthesia synchronous positioning system, characterized in that, It includes the following components: An ultrasound component, including an ultrasound probe and an ultrasound positioning component. The ultrasound probe is used to obtain ultrasound images. When the ultrasound image meets the requirements of the puncture gap, puncture point, and puncture angle, the ultrasound positioning component switches from the retracted state to the deployed state through its support feet thereon, so as to position the placement state of the ultrasound probe at this time in a multi-point support manner; A puncture component, including an anesthetic needle and a puncture positioning component. The puncture positioning component has the same structure as the ultrasound positioning component. The support feet on the puncture positioning component synchronize the support state of the support feet on the ultrasound positioning component, so that the anesthetic needle can be placed at the position where the ultrasound probe has been placed according to the placement state of the ultrasound probe, that is, the central axis of the anesthetic needle can be on the same straight line as the central axis of the ultrasound probe.

2. The ultrasonic-guided intraspinal anesthesia synchronous positioning system according to claim 1, characterized in that: Both the ultrasound positioning component and the puncture positioning component include a driving unit. The driving unit is used to drive the corresponding support feet to be deployed in stages. The support feet include a first movable rod and a second movable rod. The support feet on the ultrasound positioning component make the angle between the overall support feet and the ultrasound positioning component gradually increase through the driving unit until the support end of the support feet contacts the placement position. And during this process, the deployment restriction between the first movable rod and the second movable rod is released and they are completely deployed relative to each other.

3. The ultrasonic-guided intraspinal anesthesia synchronous positioning system according to claim 1, characterized in that: The ultrasound positioning component transmits the control signal for driving the support feet to deploy thereon to the puncture positioning component in a wired or wireless manner.

4. The ultrasonic-guided intraspinal anesthesia synchronous positioning system according to claim 1, characterized in that: When the ultrasound probe is located on the ultrasound positioning component, the central axis of the ultrasound positioning component is on the same straight line as the central axis of the ultrasound probe. When the anesthetic needle is located on the puncture positioning component, the central axis of the puncture positioning component is on the same straight line as the central axis of the anesthetic needle.

5. The ultrasonic-guided intraspinal anesthesia synchronous positioning system according to claim 1, characterized in that: When the ultrasound image meets the requirements of the puncture gap, puncture point, and puncture angle, the central axis of the ultrasound probe is the puncture angle, and the center point of the lower end face of the ultrasound probe is the puncture point.

6. The ultrasonic-guided intraspinal anesthesia synchronous positioning system according to claim 1, characterized in that: The deployment stroke of one or more of the support feet is different from the deployment stroke of the remaining support feet. Each support foot on the ultrasound positioning component can rotate synchronously relative to the ultrasound positioning component, so that the deployment length of each support foot can meet the requirement of supporting the ultrasound positioning component.

7. The ultrasonic-guided intraspinal anesthesia synchronous positioning system according to claim 2, characterized in that: The support feet drive the driving unit to stop driving when the support end of the support feet contacts the skin through the pressure sensors thereon.

8. The ultrasonic-guided intraspinal anesthesia synchronous positioning system according to claim 1, characterized in that: The puncture positioning component guides the anesthetic needle to move linearly along the axis of the puncture positioning component by installing a guide needle sleeve. The length of the guide needle sleeve exposed outside the puncture positioning component is the same as the length of the ultrasound probe exposed outside the ultrasound positioning component.

9. The ultrasonic-guided intraspinal anesthesia synchronous positioning system according to claim 1, characterized in that: The contact positions between the support feet of the ultrasound positioning component and the placement position are marked separately. The separate marks can correspond to the support feet, and the separate marks use numerical symbols or letter symbols.

10. The ultrasonic-guided intraspinal anesthesia synchronous positioning system according to claim 1, characterized in that: The information of the ultrasound image includes one or more of the spinal canal gap contour, the position of the spinal canal gap relative to the spinal midline, and the spinal canal gap depth.

Images