Intelligent induction puncture and injection integrated device for percutaneous centrum forming

Abstract

The invention relates to the field of medical apparatus and instruments, in particular to an intelligent sensing puncture and injection integrated device for percutaneous vertebroplasty, which comprises a handle, a puncture needle and a pair of needle top seats, a needle sleeve extending leftwards is arranged in the center of the handle, a top seat groove is formed in the right end of the handle, the puncture needle is slidably mounted in the needle sleeve, and a needle tip part extends leftwards out of the needle sleeve; the pair of needle top seats is fixedly installed in the top seat groove, needle grooves are formed in the pair of needle top seats, the tail end of the puncture needle is installed in the needle grooves in a sliding mode, and a miniature pressure sensor is installed between the tail end face of the puncture needle and the bottom end face of each needle groove. The system can sense and remind doctors of risks in the current puncture process in real time, help the doctors to make adjustments in time, ensure safe operation, and improve the accuracy and success rate of the operation; the surgical operation process is simplified, and the surgical time and complexity are reduced; through control of the bone cement injection temperature, accurate control of the bone cement curing speed can be achieved, and the risk of bone cement leakage is effectively reduced.

Description

Technical Field

[0001] The present invention relates to the field of medical devices, and in particular to an intelligent induction puncture and injection integrated device for percutaneous vertebroplasty. Background Art

[0002] Percutaneous vertebroplasty (PVP) is a new interventional treatment technology that has been widely used worldwide since it was first performed by Herve Deramond of France in 1987. Under the guidance of imaging equipment, this technology uses a special puncture device to puncture the lesion vertebra through the skin, and then injects bone cement (polymethyl methacrylate) into the vertebral body to achieve multiple therapeutic purposes such as enhancing vertebral strength and stability, relieving pain, and inactivating tumors.

[0003] Currently, percutaneous vertebroplasty mostly uses a puncture device to form a channel, and then inserts a tube into the channel again before injecting bone cement. This method is not only cumbersome to operate, but also involves more surgical instruments, which increases the risk and complexity of the operation. The cumbersome operation steps and complex instrument use may not only prolong the operation time, but also affect the success rate of the operation.

[0004] Although percutaneous vertebroplasty is performed under the guidance of imaging devices (such as DSA or CT), the limitations of imaging technology make it difficult for doctors to clearly see the internal tissues of the vertebral body. This may increase the risk of damaging blood vessels or nerves during the puncture process. Especially when there are complex anatomical structures or vascular and nerve bundles around the diseased vertebral body, the difficulty and risk of puncture are further increased.

[0005] Bone cement leakage is one of the common complications of percutaneous vertebroplasty, and its incidence is relatively high. Bone cement leakage may occur around the vertebral body, near the intervertebral disc, and in the intervertebral foramen, which may not only aggravate the degeneration of the intervertebral disc, but also cause serious nerve or vascular damage. In addition, the toxic reaction and polymerization heat release of bone cement may also cause damage to surrounding tissues.

[0006] Therefore, there is an urgent need for a new type of intelligent sensing puncture and injection integrated device for percutaneous vertebroplasty to provide an effective solution to the defects of the existing technology. Summary of the invention

[0007] The purpose of the present invention is to provide an intelligent sensing puncture and injection integrated device for percutaneous vertebroplasty to solve the problems raised in the above-mentioned background technology.

[0008] To achieve the above object, the present invention provides the following technical solutions:

[0009] An intelligent sensing puncture and injection integrated device for percutaneous vertebroplasty comprises a handle, a puncture needle and a pair of needle top seats, wherein a needle sleeve extending to the left is provided at the center of the handle, a top seat groove is provided at the right end of the handle, the puncture needle is slidably installed in the needle sleeve and the needle tip part extends to the left from the needle sleeve, a pair of needle top seats are fixedly installed in the top seat groove, a pair of needle top seats are provided with needle grooves, the end of the puncture needle is slidably installed in the needle groove, a micro pressure sensor is installed between the end face of the end of the puncture needle and the bottom end face of the needle groove, the micro pressure sensor transmits a signal to a control main board, a micro vibration motor is installed on the right end face of the needle top seat, and the control main board transmits a signal to the micro vibration motor unidirectionally.

[0010] Furthermore, the left half of the puncture needle is in a hollow tubular shape, and the right end of the internal pipe of the puncture needle is connected to a push tube, and the push tube is used to connect to a bone cement pusher.

[0011] Furthermore, a heating tube is provided on the push injection tube, an electric heating plate is provided in the heating tube, and the control main board transmits control signals to the electric heating plate in a unidirectional manner.

[0012] Furthermore, the electric heating plate is a spiral sheet structure.

[0013] Furthermore, the internal pipeline of the puncture needle is provided with a tube interlayer, and a fiber grating sensor is provided in the tube interlayer. The fiber grating sensor is used to monitor the temperature of the bone cement during injection, and the fiber grating sensor is a unidirectional sensor temperature model to the control mainboard.

[0014] Furthermore, a pair of conical positioning posts are provided on the top seat groove, and threaded holes are provided at the ends of the positioning posts, which are threadedly connected to the screws. A conical positioning hole is provided on the needle top seat, and the positioning hole is plugged into the positioning post. A pair of mounting holes are provided on the bottom plate of the micro vibration motor, and the screws pass through the positioning holes and the mounting holes on the bottom plate, and the heads of the screws are pressed onto the outer surface of the bottom plate.

[0015] Furthermore, a docking groove is provided on the needle top seat on one side, and a docking block is provided on the needle top seat on the other side, and the docking block is plugged into and matched with the docking groove.

[0016] Furthermore, the needle groove is a semi-cylindrical structure on the contact surfaces of the needle top seats on both sides, and the needle grooves on both sides are combined into a cylindrical structure after the docking block is plugged into and matched with the docking groove.

[0017] Furthermore, a semicircular bearing groove is provided in the needle groove, and after the docking block is plugged into the docking groove, the bearing grooves on both sides are combined into a circular ring structure, and a micro precision bearing is installed in the bearing groove, and the inner ring of the micro precision bearing is arranged at the end of the puncture needle.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The present invention can sense and remind doctors of the risks in the current puncture process in real time through the synergistic effect of micro pressure sensors and micro vibration motors, helping doctors to make timely adjustments, ensuring the safety of the operation, and improving the accuracy and success rate of the operation. The real-time monitoring and reminder functions enable doctors to avoid damaging important tissues such as blood vessels or nerves during the puncture process, thereby reducing the risk of surgical complications. The hollow tubular design of the left half of the puncture needle allows bone cement to be directly injected through the puncture needle without the need for additional pipes or devices, simplifying the surgical operation process and reducing the operation time and complexity.

[0020] 2. The present invention realizes the stable installation and precise docking of the needle top seat and the smooth sliding of the puncture needle in the needle groove, thereby improving the overall stability and accuracy of the device.

[0021] 3. The present invention can achieve precise control of the bone cement curing speed by controlling the bone cement injection temperature, thereby effectively reducing the risk of bone cement leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of an intelligent sensing puncture and injection integrated device for percutaneous vertebroplasty;

[0023] Figure 2 It is a schematic diagram of the structure decomposition of an intelligent sensing puncture and injection integrated device for percutaneous vertebroplasty;

[0024] Figure 3 It is a schematic diagram of the structural breakdown of the puncture needle and the handle;

[0025] Figure 4 It is a schematic diagram of the structure decomposition of the handle, the needle top seat and the micro vibration motor;

[0026] Figure 5 It is a schematic diagram of the structure decomposition of the needle top seat and the end of the puncture needle;

[0027] Figure 6 It is a structural schematic diagram of the needle top seat;

[0028] Figure 7 is a cross-sectional view of the needle top seat;

[0029] Figure 8 It is a schematic diagram of the internal structure of the heating tube;

[0030] Fig. 9 This is a cross-sectional view of the puncture needle.

[0031] In the figure: 1. handle; 2. needle sleeve; 3. top seat groove; 4. puncture needle; 5. tube interlayer; 6. fiber grating sensor; 7. injection tube; 8. heating tube; 9. electric heating plate; 10. positioning column; 11. needle top seat; 12. positioning hole; 13. screw; 14. micro vibration motor; 15. bottom plate; 16. needle groove; 17. micro pressure sensor; 18. micro precision bearing; 19. bearing groove; 20. docking groove; 21. docking block. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Example 1: Please refer to Figures 1 to 7 A smart sensing puncture and injection integrated device for percutaneous vertebroplasty includes a handle 1, a puncture needle 4 and a pair of needle top seats 11. A needle sleeve 2 extending to the left is provided at the center of the handle 1, and a top seat groove 3 is provided at the right end of the handle 1. The puncture needle 4 is slidably installed in the needle sleeve 2 and the needle tip part extends to the left from the needle sleeve 2. A pair of needle top seats 11 are fixedly installed in the top seat groove 3. A pair of needle top seats 11 are provided with needle grooves 16. The end of the puncture needle 4 is slidably installed in the needle groove 16. A micro pressure sensor 17 is installed between the end face of the end of the puncture needle 4 and the bottom end face of the needle groove 16. The micro pressure sensor 17 transmits a signal to a control main board. A micro vibration motor 14 is installed on the right end face of the needle top seat 11. The control main board transmits a signal to the micro vibration motor 14 in a unidirectional manner.

[0034] The left half of the puncture needle 4 is in a hollow tubular shape, and the right end of the internal pipe of the puncture needle 4 is connected to a push tube 7, which is used to connect to a bone cement pusher.

[0035] A pair of conical positioning posts 10 are provided on the top seat groove 3, and threaded holes are provided at the ends of the positioning posts 10, which are threadedly connected to screws 13. A conical positioning hole 12 is provided on the needle top seat 11, and the positioning hole 12 is plugged into the positioning post 10. A pair of mounting holes are provided on the bottom plate 15 of the micro vibration motor 14, and the screws 13 pass through the positioning holes 12 and the mounting holes on the bottom plate 15, and the heads of the screws 13 are pressed on the outer surface of the bottom plate 15.

[0036] A docking groove 20 is provided on the needle top seat 11 on one side, and a docking block 21 is provided on the needle top seat 11 on the other side. The docking block 21 is plugged and matched with the docking groove 20 .

[0037] The needle groove 16 is in a semi-cylindrical structure on the contact surfaces of the needle top seats 11 on both sides. After the docking block 21 is plugged into the docking groove 20 , the needle grooves 16 on both sides are combined into a cylindrical structure.

[0038] A semicircular bearing groove 19 is provided in the needle groove 16. After the docking block 21 is plugged into the docking groove 20, the bearing grooves 19 on both sides are combined into a circular ring structure. A micro precision bearing 18 is installed in the bearing groove 19, and the inner ring of the micro precision bearing 18 is set at the end of the puncture needle 4.

[0039] Working principle of this embodiment:

[0040] When the present embodiment is not in use, the puncture needle 4 is slidably mounted in the needle sleeve 2, and its end is slidably mounted in the needle groove 16. The micro pressure sensor 17 is located between the end face of the puncture needle 4 and the bottom end face of the needle groove 16, and is in a standby state. Under the guidance of the imaging device, the doctor operates the puncture needle 4 through the handle 1 to percutaneously puncture the diseased vertebral body. At this time, the micro vibration motor 14 does not work, and the puncture needle 4 is steadily advanced under the control of the doctor. When the puncture needle 4 punctures from one tissue to another tissue, such as from the soft tissue to the junction of the bone tissue, due to the difference in the physical properties of the two tissues, the needle core will be subjected to a large pressure change. At this time, the micro pressure sensor 17 will detect this pressure value change and immediately transmit the signal to the control main board. The control main board determines whether the pressure value change is too large according to the preset algorithm. If it is judged to be too large, it will immediately send a command to the micro vibration motor 14 installed at the appropriate position of the handle or the handle 1. After confirming that the puncture needle 4 has reached the appropriate position, the doctor connects the bone cement injector through the injection tube 7 and starts to inject bone cement into the vertebral body. Bone cement enters the vertebral body through the hollow tube inside the puncture needle 4, achieving the purpose of enhancing the strength and stability of the vertebral body. After the bone cement push injection is completed, the doctor can gradually withdraw the puncture needle 4 and close the device.

[0041] This embodiment can sense and remind the doctor of the risks in the current puncture process in real time through the synergistic effect of the micro pressure sensor and the micro vibration motor, helping the doctor to make timely adjustments to ensure the safety of the operation and improve the accuracy and success rate of the operation. The real-time monitoring and reminder functions enable the doctor to avoid damaging important tissues such as blood vessels or nerves during the puncture process, thereby reducing the risk of surgical complications. The hollow tubular design of the left half of the puncture needle 4 allows bone cement to be directly injected through the puncture needle without the need for additional pipes or devices, simplifying the surgical operation process and reducing the operation time and complexity.

[0042] A pair of conical positioning posts 10 are arranged on the top seat groove 3, and the ends of these positioning posts 10 are designed with threaded holes. A conical positioning hole 12 matching the positioning post 10 is arranged on the needle top seat 11. When the needle top seat 11 is installed on the top seat groove 3, the positioning post 10 will be inserted into the positioning hole 12 to achieve preliminary positioning and fixation. The screw 13 is connected to the threaded hole at the end of the positioning post 10 through a threaded connection. The head of the screw 13 is pressed on the bottom plate 15 of the needle top seat 11. If it refers to the outer surface of the mounting plate of the micro vibration motor, the needle top seat 11 can be further firmly fixed on the top seat groove 3 by tightening the screw 13. A docking groove 20 is arranged on the needle top seat 11 on one side, and a docking block 21 is arranged on the needle top seat 11 on the other side. When the two needle top seats 11 are installed relative to each other, the docking block 21 will be inserted into the docking groove 20 to achieve a tight connection between the needle top seats 11 on both sides.

[0043] The needle groove 16 is a semi-cylindrical structure on the contact surface of the needle top seat 11 on both sides. When the docking block 21 is plugged into the docking groove 20, the needle grooves 16 on both sides will be combined into a complete cylindrical structure, providing a stable sliding track for the end of the puncture needle 4. A semi-circular bearing groove 19 is provided in the needle groove 16. When the docking block 21 is plugged into the docking groove 20, the bearing grooves 19 on both sides will be combined into a circular ring structure. The micro-precision bearing 18 is installed in the combined circular ring bearing groove 19, and its inner ring is sleeved on the end of the puncture needle 4. The presence of the micro-precision bearing 18 makes the puncture needle 4 slide more smoothly in the needle groove 16, reduces friction and wear, and improves the durability and precision of the device. This embodiment realizes the stable installation and precise docking of the needle top seat 11, as well as the smooth sliding of the puncture needle 4 in the needle groove 16, improving the overall stability and precision of the device.

[0044] Example 2: Please refer to Figures 1 to 9 , an intelligent induction puncture and injection integrated device for percutaneous vertebroplasty, which differs from Example 1 in that a heating tube 8 is provided on the injection tube 7, an electric heating plate 9 is provided in the heating tube 8, and a control main board transmits control signals to the electric heating plate 9 in a unidirectional manner.

[0045] The electric heating plate 9 is a spiral plate structure.

[0046] The inner pipe of the puncture needle 4 is provided with a tube sandwich 5, and a fiber grating sensor 6 is arranged inside the tube sandwich 5. The fiber grating sensor 6 is used to monitor the temperature of the bone cement during injection. The fiber grating sensor 6 is a unidirectional sensor temperature model of the control mainboard.

[0047] Working principle of this embodiment: The heating tube 8 is a component arranged on the push tube 7, which is responsible for providing heating function for bone cement. The heating tube 8 is designed with a cavity or channel inside to accommodate the electric heating plate 9. The electric heating plate 9 adopts a spiral sheet structure design, which can maximize the heating area and improve the heating efficiency. The electric heating plate 9 is installed in the cavity or channel of the heating tube 8 and is connected to the control main board through wires. When the bone cement needs to be heated, the control main board will send a control signal to the electric heating plate 9. After receiving the signal, the electric heating plate 9 starts to work and generates heat. This heat is transferred to the bone cement in the push tube 7 through the heating tube 8, so that it reaches a suitable temperature, which is convenient for push injection and curing. The tube interlayer 5 is an additional layer arranged in the inner pipe of the puncture needle 4, which is located between the tube wall and the inner pipe of the puncture needle 4. The purpose of the design of the tube interlayer 5 is to accommodate the fiber grating sensor 6. The fiber grating sensor 6 uses the Bragg grating effect of the optical fiber to monitor temperature changes. The fiber grating sensor 6 is installed in the tube interlayer 5 and is connected to the control main board through an optical fiber. The fiber grating sensor 6 monitors the temperature change of the bone cement in real time. When the temperature changes, the fiber grating sensor 6 captures the change and converts it into an optical signal. These optical signals are transmitted to the control mainboard through optical fibers, and the control mainboard converts these optical signals into temperature data, thereby realizing real-time monitoring of the bone cement temperature.

[0048] Before the operation, the doctor will set the heating temperature range of the bone cement as needed. When the operation starts, the control mainboard will send a control signal to the electric heating plate 9 to start working and heat the bone cement in the injection tube 7. At the same time, the fiber grating sensor 6 will monitor the temperature of the bone cement in real time and feed back the temperature data to the control mainboard. The control mainboard will determine whether the current temperature of the bone cement is appropriate based on the preset temperature range. If the temperature is too high or too low, the control mainboard will adjust the working state of the electric heating plate 9 to keep the bone cement within a suitable temperature range. When the bone cement reaches the appropriate temperature, the doctor can start the injection operation. During the injection process, the fiber grating sensor 6 will continue to monitor the temperature to ensure that the temperature of the bone cement always remains within a suitable range.

[0049] This embodiment can achieve precise control of the bone cement curing speed by controlling the bone cement injection temperature, thereby effectively reducing the risk of bone cement leakage.

Claims

1. An intelligent induction puncture and injection integrated device for percutaneous vertebroplasty, comprising a handle (1), a puncture needle (4) and a pair of needle top seats (11), characterized in that: A needle sleeve (2) extending to the left is provided at the center of the handle (1), a top seat groove (3) is provided at the right end of the handle (1), the puncture needle (4) is slidably mounted in the needle sleeve (2) and the needle tip portion extends to the left out of the needle sleeve (2), a pair of needle top seats (11) are fixedly mounted in the top seat groove (3), a pair of needle top seats (11) are provided with needle grooves (16), the end of the puncture needle (4) is slidably mounted in the needle groove (16), a micro pressure sensor (17) is installed between the end surface of the end of the puncture needle (4) and the bottom end surface of the needle groove (16), the micro pressure sensor (17) transmits a signal to a control main board, a micro vibration motor (14) is installed on the right end surface of the needle top seat (11), and the control main board transmits a signal to the micro vibration motor (14) in a unidirectional manner.

2. The intelligent induction puncture and injection integrated device for percutaneous vertebroplasty according to claim 1, characterized in that: The left half of the puncture needle (4) is in the shape of a hollow tube. The right end of the internal pipeline of the puncture needle (4) is connected to a push tube (7), and the push tube (7) is used to connect to a bone cement pusher.

3. The intelligent induction puncture and injection integrated device for percutaneous vertebroplasty according to claim 2, characterized in that: The push injection tube (7) is provided with a heating tube (8), the heating tube (8) is provided with an electric heating plate (9), and the control main board transmits control signals to the electric heating plate (9) in a unidirectional manner.

4. The intelligent induction puncture and injection integrated device for percutaneous vertebroplasty according to claim 3, characterized in that: The electric heating plate (9) is a spiral plate structure.

5. The intelligent induction puncture and injection integrated device for percutaneous vertebroplasty according to claim 3, characterized in that: The internal pipeline of the puncture needle (4) is provided with a tube sandwich (5), and a fiber optic Bragg grating sensor (6) is provided in the tube sandwich (5). The fiber optic Bragg grating sensor (6) is used to monitor the temperature of the bone cement during push injection. The fiber optic Bragg grating sensor (6) is a unidirectional sensor temperature model for the control mainboard.

6. The intelligent induction puncture and injection integrated device for percutaneous vertebroplasty according to claim 1, characterized in that: A pair of conical positioning posts (10) are provided on the top seat groove (3), and threaded holes are provided at the ends of the positioning posts (10), and the threaded holes are threadedly connected to the screws (13). A conical positioning hole (12) is provided on the needle top seat (11), and the positioning hole (12) is plugged into and matched with the positioning posts (10). A pair of mounting holes are provided on the bottom plate (15) of the micro vibration motor (14), and the screws (13) pass through the positioning holes (12) and the mounting holes on the bottom plate (15), and the heads of the screws (13) are pressed against the outer surface of the bottom plate (15).

7. The intelligent induction puncture and injection integrated device for percutaneous vertebroplasty according to claim 1, characterized in that: A docking groove (20) is provided on the needle top seat (11) on one side, and a docking block (21) is provided on the needle top seat (11) on the other side. The docking block (21) is plugged into and matched with the docking groove (20).

8. The intelligent sensing puncture and injection integrated device for percutaneous vertebroplasty according to claim 7, characterized in that: The needle groove (16) is in a semi-cylindrical structure on the contact surfaces of the needle top seats (11) on both sides, and the needle grooves (16) on both sides are combined into a cylindrical structure after the docking block (21) is plugged into and matched with the docking groove (20).

9. The intelligent induction puncture and injection integrated device for percutaneous vertebroplasty according to claim 8, characterized in that: A semicircular bearing groove (19) is provided in the needle groove (16); after the docking block (21) is plugged into the docking groove (20), the bearing grooves (19) on both sides are combined into a circular ring structure; a micro precision bearing (18) is installed in the bearing groove (19); and the inner ring of the micro precision bearing (18) is sleeved on the end of the puncture needle (4).

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