Puncture equipment

Abstract

The utility model belongs to the technical field of medical instruments, and discloses puncture equipment which comprises a magnetic navigation system and a puncture needle used for puncturing a patient, and the magnetic navigation system comprises a magnetic field generator and a visual feedback module; the puncture needle comprises a main body and a first needle core, the first needle core is detachably connected to the main body, the first needle core is provided with a magnetic field sensor, and the magnetic field sensor is electrically connected with the visual feedback module; the magnetic field generator emits an electromagnetic field to a target puncture area, the magnetic field sensor feeds back a magnetic field signal, and the position and direction of the first needle core are monitored in real time through the visual feedback module. According to the utility model, a target can be accurately punctured, and the risk of accidentally injuring the surrounding structure is reduced; meanwhile, the effects of simplicity in operation and safety in use are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of medical instruments, more specifically, a puncture equipment. BACKGROUND

[0002] In the existing clinical treatment, for example, in the operation of brain nerve blockage, spinal nerve blockage, accurate positioning of the target nerve or tissue is a key factor to improve the success rate of operation and reduce the trauma of patients.

[0003] The traditional nerve blockage operation depends on the experience and anatomical knowledge of doctors, and the target nerve or tissue is punctured blindly, which is difficult to ensure accurate arrival of the target nerve or tissue every time, and at the same time, blood vessels, nerves or other important structures may be injured in the puncture operation, thereby increasing the risk of bleeding, infection and permanent functional damage of patients. In the prior art, some hospitals use CT, MRI or ultrasound or other imaging technologies for auxiliary positioning, but in the current operation process, repeated CT scanning and multiple needle insertion are still required, which will lead to long operation time and increase the discomfort of patients; secondly, the repeated use of auxiliary positioning equipment causes a large amount of radiation damage to doctors and patients, and may cause complications; the long-time use of CT or MRI equipment also increases the operation cost, which leads to the inability to be widely applied; the use of ultrasound imaging system positioning requires the use of special imaging structure needle for puncture, but the imaging quality cannot be obviously improved, so doctors with rich clinical experience and ultrasound use experience are needed to identify the ultrasound image of the needle and perform accurate positioning, which increases the difficulty of ultrasound puncture.

[0004] The above technical means has the defects of unable to guarantee the puncture accuracy and complex operation. UTILITY MODEL CONTENT

[0005] The utility model embodiment provides a puncture equipment, can accurate puncture to target, reduced the risk of injuring surrounding structure, simultaneously has the advantages that simple operation, safe use.

[0006] The utility model provides a puncture equipment adopts the following technical scheme:

[0007] A puncture equipment, comprising:

[0008] A magnetic navigation system, comprising a magnetic field generator and a visual feedback module;

[0009] A puncture needle for puncturing patients, the puncture needle comprising a main body and a first needle core, the first needle core being detachably connected to the main body, the first needle core being provided with a magnetic field sensor, the magnetic field sensor being electrically connected to the visual feedback module;

[0010] The magnetic field generator emits an electromagnetic field to a target puncture area, the magnetic field sensor captures a magnetic field signal, and the position and direction of the first needle core are monitored in real time through a visual feedback module.

[0011] Optionally, the puncture needle further comprises a second needle core and a wire, the second needle core is detachably connected to the main body, and the second needle core is electrically connected to a power source through the wire.

[0012] Optionally, the first needle core and the second needle core are both detachably connected to the main body, so that the first needle core and the second needle core are alternately used.

[0013] Optionally, the main body comprises a mounting portion, one end of the mounting portion is provided with a mounting opening, and the first needle core or the second needle core is mounted in the mounting opening and covers the mounting opening.

[0014] Optionally, the mounting portion is provided with a communication pipeline, the communication pipeline is in communication with the external environment through the mounting opening, the first needle core and the second needle core are provided with a needle core channel, and the communication pipeline is in communication with the needle core channel.

[0015] Optionally, the puncture needle further comprises a syringe connecting opening for connecting with a syringe, the syringe connecting opening is in communication with the communication pipeline, and medicine in the syringe enters the communication pipeline through the syringe connecting opening.

[0016] Optionally, the main body further comprises a rear cover, the rear cover is detachably mounted on the mounting portion, the rear cover is arranged at one end of the mounting portion and is arranged in alignment with the mounting opening, and the rear cover covers one end of the communication pipeline away from the mounting opening.

[0017] Optionally, a data transmission line is further included, the magnetic field sensor is electrically connected to the visual feedback module through the data transmission line, and the data transmission line is led out from one end of the main body and connected to the magnetic navigation system.

[0018] Optionally, the puncture needle further comprises a needle handle for convenient gripping, the needle handle is fixedly mounted on the mounting portion, and the mounting portion is held to apply a force.

[0019] Optionally, the needle handle is annularly arranged to facilitate the fingers to pass through, and the diameter direction of the needle handle is the same as the length direction of the first needle core.

[0020] From the above technical solutions, it can be seen that the embodiments of the utility model have the following advantages:

[0021] The magnetic field sensor on the first needle core will generate feedback to the electromagnetic field emitted by the magnetic field generator, the feedback module will finally convert the received feedback signal into a visual image to the visual feedback module through an algorithm, realizing real-time position and posture monitoring of the magnetic field sensor on the first needle core, and the doctor adjusts the angle and direction of the first needle core through the visual feedback module to ensure that it advances according to the preset path, to help the doctor accurately puncture the target point, ensure that each puncture can accurately reach the target nerve tissue, reduce the discomfort and potential complication risk caused to the patient due to multiple attempts, reduce the risk of injuring the surrounding structure, and improve the safety of use; meanwhile, due to the rapid and accurate positioning, the overall operation time is shortened, the patient's burden is reduced, the operation difficulty and the doctor's proficiency requirement are reduced, the operation is convenient and simple, the operation efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical scheme in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0023] Figure 1 The present application discloses a puncture device highlighting the overall structure of the puncture needle.

[0024] Figure 2 The present application discloses a puncture device highlighting the overall structure of the puncture needle.

[0025] Figure 3 For Figure 1 The structure of A in the middle is enlarged.

[0026] BRIEF DESCRIPTION OF DRAWINGS

[0027] 1, puncture needle; 11, main body; 12, first needle core; 13, magnetic field sensor; 14, mounting portion; 141, clamping groove; 15, rear cover; 151, clamping block; 17, syringe connecting port; 18, handle. DETAILED DESCRIPTION

[0028] The present application will be further described in detail in combination with the drawings.

[0029] The present application provides a puncture device which can accurately puncture the target and reduce the risk of injuring the surrounding structure. Meanwhile, the present application has the advantages of simple operation and safe use.

[0030] In order to make the person skilled in the art better understand the technical scheme of the present application, the technical scheme in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without creative labor should belong to the protection scope of the present application. In addition, the technical schemes of various embodiments can be combined with each other, but it must be based on the fact that the person skilled in the art can realize it, when the combination of technical schemes appears contradictory or unachievable, it should be considered that the combination of technical schemes does not exist, and is not within the protection scope required by the present application.

[0031] The terms "first", "second", "third", "fourth" and the like in the description, claims, and drawings of the present application are used to distinguish similar objects, and do not necessarily have to be used to describe a particular order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not have to be limited to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0032] Background art Conventional nerve block surgery relies on the experience and anatomical knowledge of doctors to blindly puncture the target nerve or tissue, which is difficult to ensure accurate arrival at the target nerve or tissue every time, and may injure blood vessels, nerves or other important structures during the puncture operation, thereby increasing the risk of bleeding, infection and permanent functional impairment of the patient. In the prior art, some hospitals use CT, MRI or ultrasound or other imaging techniques for assisted positioning, but in the current operation process, repeated CT scanning and multiple needle insertion are still required, which will result in long operation time and increase the discomfort of the patient. Secondly, the repeated use of assisted positioning equipment causes a large amount of radiation damage to the doctor and the patient, and may cause complications. Long-term use of CT or MRI equipment also increases the cost of surgery, making it difficult to be widely used. The use of an ultrasound imaging system for positioning requires the use of a special imaging structure needle for puncture, but the imaging quality cannot be significantly improved, so doctors with rich clinical experience and ultrasound use experience are required to identify the ultrasound image of the needle and perform accurate positioning, thereby increasing the difficulty of ultrasound puncture.

[0033] To solve the above technical problems, the present application provides a puncture device, please refer to Figure 1For an embodiment of the puncture device in the embodiments of the utility model, including: magnetic navigation system and puncture needle 1, puncture needle 1 is used to puncture patient, magnetic navigation system is used to accurately guide puncture needle 1 to penetrate skin and reach preset target position, such as nerve, blood vessel, tumor and other internal structures, in this embodiment, using puncture device to puncture nerve is taken as an example, and it is used in nerve block operation.

[0034] Please refer to Figure 1 And Figure 3 , specifically, the magnetic navigation system includes a magnetic field generator and a visual feedback module;Puncture needle 1 includes main body 11 and first needle core 12, first needle core 12 is detachably connected to main body 11, first needle core 12 is provided with magnetic field sensor 13, and magnetic field sensor 13 is electrically connected with visual feedback module;Magnetic field generator emits electromagnetic field to target puncture area, magnetic field sensor 13 captures magnetic field signal, and the position and direction of first needle core 12 are monitored in real time through visual feedback module. In order to facilitate data transmission, the puncture device further includes a data transmission line, the magnetic field sensor 13 is electrically connected with the visual feedback module through the data transmission line, and the data transmission line is connected with the magnetic navigation system through one end of the main body 11. In this embodiment, the magnetic field sensor 13 is located at the end of the first needle core 12 that preferentially contacts the patient.

[0035] It can be understood that the magnetic field sensor 13 on the first needle core 12 will produce feedback to the electromagnetic field emitted by the magnetic field generator, and the visual feedback module will finally convert the received feedback signal into a visual image to the visual feedback module through an algorithm, so as to realize real-time position and posture monitoring of the magnetic field sensor 13 on the first needle core 12. The doctor adjusts the angle and direction of the first needle core 12 through the visual feedback module to ensure that it advances according to the preset path, helps the doctor to accurately puncture the target point, ensures that each puncture can accurately reach the target nerve tissue, reduces the discomfort and potential complication risk caused to the patient due to multiple attempts, reduces the risk of injuring the surrounding structure, and improves the safety of use;At the same time, due to the rapid and accurate positioning, it helps to shorten the overall operation time and reduce the burden on the patient. Compared with the traditional image positioning method of nerve block operation, magnetic navigation positioning avoids the radiation damage caused by CT scan, and because it provides intuitive images and real-time feedback, the use of magnetic navigation system is usually much simpler than relying on complex and time-consuming ultrasound guidance. Magnetic navigation reduces the number of times of using image equipment, causes little harm to doctors and patients, has low requirement on doctor's proficiency, reduces operation cost and operation difficulty, has the advantages of convenient operation and simple operation.

[0036] The puncture needle 1 further comprises a second needle core and a wire, the second needle core is detachably connected to the main body 11, and the second needle core is electrically connected with a power source through the wire to achieve the effect of electrically stimulating the target nerve plexus. The first needle core 12 and the second needle core are both detachably connected to the main body 11, so that the first needle core 12 and the second needle core are used alternately. The first needle core 12 is used to puncture the patient under the visual guidance of magnetic navigation, and after reaching the specified target position, the first needle core 12 is removed and replaced with the second needle core. The second needle core is powered on, and the puncture is verified by electrically stimulating the target nerve or the target nerve plexus. It can be understood that during the electrical stimulation verification process, the medical staff uses the second needle core to contact the nerve tissue, and then applies a weak current to the second needle core. The success of the puncture is verified by the specific response of nerve cells to electrical stimulation, that is, by observing the observed movement or somatosensory changes. If the current can induce the expected muscle response or feeling, such as slight tremor of the fingers, it means that the nerve plexus has been successfully contacted; if the electrical stimulation has no response or the response is unexpected, it may mean that the puncture position is not correct or has exceeded the range of the nerve plexus. This process helps to ensure the safety and accuracy of the operation and avoid unnecessary damage.

[0037] Please refer to Figure 1 and Figure 2 The main body 11 comprises a mounting portion 14 and a rear cover 15, the mounting portion 14 is used to mount the first needle core 12 or the second needle core, and the rear cover 15 is detachably mounted on the mounting portion 14. In this embodiment, the mounting portion 14 is clamped with the rear cover 15, the rear cover 15 is provided with a clamping block 151, and the mounting portion 14 is provided with a clamping groove 141. The clamping block 151 and the clamping groove 141 are clamped with each other to realize the detachable connection of the mounting portion 14 and the rear cover 15. In other embodiments, the mounting portion 14 and the rear cover 15 can be connected by buckling or threaded connection to realize the assembly and disassembly of the mounting portion 14 and the rear cover 15.

[0038] The mounting portion 14 is provided with a communication pipeline and a mounting port, the mounting port is arranged at one end of the mounting portion 14, and the communication pipeline communicates with the external environment through the mounting port; the first needle core 12 or the second needle core is mounted in the communication pipeline and penetrates the mounting port, and the rear cover 15 is arranged at the other end of the mounting portion 14 and is arranged in position with the mounting port. The central axis of the mounting port coincides with the central axis of the rear cover 15, and the rear cover 15 blocks one end of the communication pipeline away from the mounting port.

[0039] The puncture needle 1 further comprises a syringe connecting port 17 for interfacing with a syringe, the syringe connecting port 17 is fixedly connected to the mounting portion 14, the syringe connecting port 17 is in communication with the communication conduit, and a medicine can be injected into the communication conduit through the syringe connecting port 17. In the embodiment, the syringe connecting port 17 is a luer connector, which has a self-sealing property to maintain the sealing performance of the communication conduit. When it is necessary to inject a medicine into the target puncture point, a syringe is connected to the syringe connecting port 17, and the medicine in the syringe is injected into the communication conduit through the syringe connecting port 17, and then the medicine is injected into the target puncture point through the communication conduit.

[0040] In a nerve block procedure, a syringe injects anesthetic through the syringe connecting port 17 into a target nerve or nerve plexus to block the nerve from transmitting pain signals to the brain. The principle of action is that the anesthetic temporarily numbs the nerve fibers, preventing them from transmitting sensations from a certain area of the body to the brain, thereby reducing the pain during the procedure, significantly improving the patient's comfort, and reducing the need for general anesthesia, reducing the risk of complications. After local anesthesia with anesthetic injection, the conduction ability of the target nerve will be temporarily weakened or lost, which means that the patient will not feel pain. The success of anesthesia is detected by a second needle core electrical stimulation, i.e. medical staff will apply a mild electrical pulse at the predetermined puncture site, and if the anesthesia is effective, the patient will not respond to the stimulation or will only feel a slight sensation, such as numbness; if the patient indicates pain or can clearly perceive the current, it means that the anesthesia has not taken effect.

[0041] In order to facilitate the gripping of the puncture needle 1 for puncture operation, the puncture needle 1 further comprises a needle handle 18 for facilitating gripping, the needle handle 18 is fixedly installed on the mounting portion 14, and the mounting portion 14 is held to apply a force. In the embodiment, the needle handle 18 is integrally formed with the mounting portion 14, and the needle handle 18 is annularly arranged to facilitate the fingers to pass through, and the diameter direction of the needle handle 18 is the same as the length direction of the first needle core 12. When the puncture needle 1 is used, the index finger passes through the annular region of the needle handle 18, and the index finger and the thumb fix the needle handle 18, so as to hold the puncture needle 1.

[0042] The above-described embodiments are only used to illustrate the technical solutions of the present application, rather than limit them; although the foregoing embodiments of the present application have been described in detail, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacements for some technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A lancing device, characterized by, The application relates to a magnetic navigation system and a puncture needle. The magnetic navigation system comprises a magnetic field generator and a visual feedback module. The puncture needle is used for puncturing a patient, and comprises a main body, a first needle core, a second needle core and a lead wire. The first needle core is detachably connected to the main body, and is provided with a magnetic field sensor which is electrically connected to the visual feedback module. The magnetic field generator emits an electromagnetic field to a target puncture area, and the magnetic field sensor captures a magnetic field signal to monitor the position and direction of the first needle core in real time through the visual feedback module.

2. The lancing device of claim 1, wherein, The second needle core is detachably connected to the main body and is electrically connected to a power supply through the lead wire.

3. The lancing device of claim 2, wherein, The first needle core and the second needle core are detachably connected to the main body, so that the first needle core and the second needle core are alternately used.

4. The lancing device of claim 3, wherein, The main body comprises a mounting portion which is provided with a mounting port at one end.

5. A puncture device according to claim 3, characterized in that, The first needle core or the second needle core is mounted on the mounting port and covers the mounting port.

6. The lancing device of claim 1, wherein, The mounting portion is provided with a communication pipeline which is in communication with the outside environment through the mounting port.

7. The lancing device of claim 2, wherein, The first needle core and the second needle core are provided with a needle core channel which is in communication with the communication pipeline.

8. A puncture device according to claim 7, characterized in that, The puncture needle further comprises a syringe connecting port which is used for connecting a syringe and is in communication with the communication pipeline. The medicine in the syringe enters the communication pipeline through the syringe connecting port. The main body further comprises a rear cover which is detachably mounted on the mounting portion. The rear cover is arranged at one end of the mounting portion and is arranged in alignment with the mounting port. The rear cover covers one end of the communication pipeline which is away from the mounting port. The magnetic field sensor is electrically connected to the visual feedback module through a data transmission line which is led out from one end of the main body and connected to the magnetic navigation system. The puncture needle further comprises a needle handle which is fixedly mounted on the mounting portion and is convenient for holding the mounting portion to apply a force. The needle handle is arranged in a ring shape to facilitate the fingers to pass through. The diameter direction of the needle handle is the same as the length direction of the first needle core.

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