Lumbar puncture needle with monitoring function

Abstract

This utility model discloses a lumbar puncture needle with monitoring function, comprising: a needle body, with a puncture needle main body internally connected to the needle body. The puncture needle main body is used to detect puncture depth and monitor cerebrospinal fluid pressure. The puncture needle main body includes an outer needle and an inner needle, with the inner needle located inside the outer needle. A gap is reserved between the outer and inner needles. A signal receiving mechanism is provided at the top of the outer needle. Both the outer and inner needles are electrically connected to the signal receiving mechanism via a point-to-line connection. This utility model provides a lumbar puncture needle with monitoring function, consisting of a system and a puncture needle main body. It can issue an alarm when the puncture needle tip contacts the cerebrospinal fluid in the subarachnoid space of the lumbar spine, and can monitor the cerebrospinal fluid pressure in real time during cerebrospinal fluid collection. Through precise puncture depth feedback and real-time cerebrospinal fluid pressure monitoring, doctors can more accurately locate the puncture point, reduce surgical errors, and improve the success rate of surgery. Real-time monitoring of cerebrospinal fluid pressure helps to detect abnormal intracranial pressure in a timely manner, prevent serious complications such as brain herniation, and ensure patient safety.

Description

Technical Field

[0001] This utility model relates to the field of lumbar puncture needle technology, and in particular to a lumbar puncture needle with monitoring function. Background Technology

[0002] Lumbar puncture is a common medical diagnostic procedure, primarily used to obtain cerebrospinal fluid (CSF) samples for disease diagnosis, intracranial pressure assessment, and certain therapeutic procedures. Traditional lumbar puncture relies on the physician's experience and tactile sense to determine the puncture depth and the presence of CSF, which not only demands a high level of skill but also carries certain operational risks. For example, puncturing too deeply may damage surrounding tissues or organs, while puncturing too superficially may prevent successful access to the subarachnoid space to obtain CSF.

[0003] In recent years, with the continuous advancement of medical technology, people have begun to explore the introduction of sensor technology into lumbar puncture to achieve real-time monitoring and feedback during the puncture process. However, these early monitoring systems often have limited functionality, such as only monitoring puncture depth or cerebrospinal fluid pressure, and suffer from problems such as insufficient accuracy, poor stability, and complex operation, failing to effectively meet clinical needs. Therefore, this application proposes a lumbar puncture needle with monitoring function, providing a new technical solution to address the aforementioned technical problems. Utility Model Content

[0004] Therefore, it is necessary to address the aforementioned technical issues by providing a lumbar puncture needle with monitoring capabilities. This system comprises two parts: the system itself and the needle body. The system can issue an alarm when the needle tip contacts the cerebrospinal fluid in the subarachnoid space of the lumbar spine, and can monitor the cerebrospinal fluid pressure in real time during cerebrospinal fluid collection. Through precise puncture depth feedback and real-time cerebrospinal fluid pressure monitoring, doctors can more accurately locate the puncture point, reduce surgical errors, and improve the success rate of the procedure. Real-time monitoring of cerebrospinal fluid pressure helps to detect abnormal intracranial pressure in a timely manner, prevent serious complications such as brain herniation, and ensure patient safety. It also reduces surgical time and the occurrence of complications, helps alleviate patient suffering, and improves the quality of postoperative recovery.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A lumbar puncture needle with monitoring function, which is used for lumbar puncture.

[0007] The lumbar puncture needle with monitoring function specifically includes:

[0008] The needle body has a puncture needle body inserted into its interior. The puncture needle body is used to detect the puncture depth and monitor the cerebrospinal fluid pressure.

[0009] The puncture needle body includes an outer needle and an inner needle, the inner needle is located inside the outer needle, a gap is reserved between the outer needle and the inner needle, a signal receiving mechanism is provided at the top of the outer needle, and both the outer needle and the inner needle are electrically connected to the signal receiving mechanism through electrical wires;

[0010] The upper part of the outer needle is provided with a pressure monitoring mechanism on the outer side for monitoring cerebrospinal fluid pressure. The pressure monitoring mechanism includes a connecting tube, which is fixedly connected to the outer needle. The inside of the connecting tube is connected to the inside of the outer needle. A pressure sensor is fixedly connected inside the connecting tube, and the detection end of the pressure sensor extends to the junction of the outer needle and the connecting tube.

[0011] As a preferred embodiment of the lumbar puncture needle with monitoring function provided by this utility model, the inner side of the outer needle is coated with an insulating layer.

[0012] In a preferred embodiment of the lumbar puncture needle with monitoring function provided by this utility model, the end of the signal receiving mechanism is connected to an external alarm mechanism via an external wire.

[0013] As a preferred embodiment of the lumbar puncture needle with monitoring function provided by this utility model, the alarm mechanism is either an audible alarm or a light alarm.

[0014] As a preferred embodiment of the lumbar puncture needle with monitoring function provided by this utility model, a pick-and-place ring is fixedly connected to the top of the outer side of the needle body, and the pick-and-place ring has anti-slip texture on the outer side.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] This invention provides a lumbar puncture needle with monitoring function, consisting of two parts: a system and a puncture needle body. It issues an alarm when the needle tip contacts the cerebrospinal fluid in the subarachnoid space of the lumbar spine, and can monitor cerebrospinal fluid pressure in real time during cerebrospinal fluid collection. Through precise puncture depth feedback and real-time cerebrospinal fluid pressure monitoring, doctors can more accurately locate the puncture point, reduce surgical errors, and improve the success rate of the surgery. Real-time monitoring of cerebrospinal fluid pressure helps to detect abnormal intracranial pressure in a timely manner, prevent serious complications such as brain herniation, and ensure patient safety. It also reduces surgical time and the occurrence of complications, helps to alleviate patient suffering, and improves the quality of postoperative recovery. Attached Figure Description

[0017] To more clearly illustrate the solutions in this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 A schematic diagram of the overall structure of the lumbar puncture needle with monitoring function provided by this utility model;

[0019] Figure 2 A schematic diagram of the main body of the lumbar puncture needle with monitoring function provided by this utility model;

[0020] Figure 3 An enlarged view of the main body of the lumbar puncture needle with monitoring function provided by this utility model.

[0021] The markings in the diagram are explained as follows:

[0022] 1. Needle body; 2. Puncture needle body; 3. Pressure monitoring mechanism; 4. Outer needle; 5. Inner needle; 6. Connecting tube; 7. Pressure sensor; 8. Signal receiving mechanism; 9. External lead wire. Detailed Implementation

[0023] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0024] As described in the background section, early monitoring systems often had limited functionality, such as only being able to monitor puncture depth or cerebrospinal fluid pressure, and suffered from problems such as insufficient accuracy, poor stability, and complex operation, thus failing to effectively meet clinical needs.

[0025] To solve this technical problem, this utility model provides a lumbar puncture needle with monitoring function, which is applied to lumbar puncture.

[0026] For details, please refer to Figures 1-3 Lumbar puncture needles with monitoring functions specifically include:

[0027] Needle body 1, with a puncture needle body 2 inserted and connected inside the needle body 1. The puncture needle body 2 is used to detect the puncture depth and monitor the cerebrospinal fluid pressure.

[0028] The puncture needle body 2 includes an outer needle 4 and an inner needle 5. The inner needle 5 is located inside the outer needle 4. A gap is reserved between the outer needle 4 and the inner needle 5. A signal receiving mechanism 8 is provided at the top of the outer needle 4. Both the outer needle 4 and the inner needle 5 are electrically connected to the signal receiving mechanism 8 through electrical wires.

[0029] The upper part of the outer needle 4 is provided with a pressure monitoring mechanism 3 on the outer side for monitoring cerebrospinal fluid pressure. The pressure monitoring mechanism 3 includes a connecting tube 6, which is fixedly connected to the outer needle 4. The inside of the connecting tube 6 is connected to the inside of the outer needle 4. A pressure sensor 7 is fixedly connected inside the connecting tube 6, and the detection end of the pressure sensor 7 extends to the junction of the outer needle 4 and the connecting tube 6.

[0030] This invention provides a lumbar puncture needle with monitoring function, consisting of two parts: a system and a puncture needle body. It issues an alarm when the needle tip contacts the cerebrospinal fluid in the subarachnoid space of the lumbar spine, and can monitor cerebrospinal fluid pressure in real time during cerebrospinal fluid collection. Through precise puncture depth feedback and real-time cerebrospinal fluid pressure monitoring, doctors can more accurately locate the puncture point, reduce surgical errors, and improve the success rate of the surgery. Real-time monitoring of cerebrospinal fluid pressure helps to detect abnormal intracranial pressure in a timely manner, prevent serious complications such as brain herniation, and ensure patient safety. It also reduces surgical time and the occurrence of complications, helps to alleviate patient suffering, and improves the quality of postoperative recovery.

[0031] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0032] Example 1:

[0033] Please refer to Figures 1-3 A lumbar puncture needle with monitoring function, comprising:

[0034] The needle body 1 has a puncture needle body 2 inserted inside it. The puncture needle body 2 is used to detect the puncture depth and monitor the cerebrospinal fluid pressure. In order to facilitate the removal and placement of the needle body 1, a removal and placement ring is fixedly connected to the top of the outer side of the needle body 1. The removal and placement ring has anti-slip texture on the outer side.

[0035] Specifically, the puncture needle body 2 includes an outer needle 4 and an inner needle 5. The inner needle 5 is located inside the outer needle 4, and a gap is reserved between the outer needle 4 and the inner needle 5. A signal receiving mechanism 8 is provided at the top of the outer needle 4. The outer needle 4 and the inner needle 5 are electrically connected to the signal receiving mechanism 8 through electrical wires. The inner side of the outer needle 4 is coated with an insulating layer. The insulating coating on the outer needle 4 is used to ensure the safety of the circuit during the puncture process. The outer needle 4 has an insulating coating inside. The outer needle 4 and the inner needle 5 are connected to the signal receiving mechanism 8 through electrical wires to form a closed-loop circuit.

[0036] It is known that the principle of impedance change and fluid pressure is used to detect cerebrospinal fluid. When the puncture needle comes into contact with the cerebrospinal fluid, the difference in conductivity between the cerebrospinal fluid and the surrounding tissue will cause a change in the impedance of the circuit. When the tip of the outer needle 4 penetrates the subarachnoid space and comes into contact with the cerebrospinal fluid, the impedance change in the circuit will be captured by the measurement system, thereby triggering an alarm signal.

[0037] The upper part of the outer needle 4 is provided with a pressure monitoring mechanism 3 on the outer side for monitoring the pressure of cerebrospinal fluid. Specifically, the pressure monitoring mechanism 3 includes a connecting tube 6, which is fixedly connected to the outer needle 4. The inside of the connecting tube 6 is connected to the inside of the outer needle 4. A pressure sensor 7 is fixedly connected inside the connecting tube 6. The detection end of the pressure sensor 7 extends to the junction of the outer needle 4 and the connecting tube 6. It can be seen that after the cerebrospinal fluid enters the interior of the outer needle 4, the pressure of the cerebrospinal fluid entering the interior of the outer needle 4 is monitored by the pressure sensor 7.

[0038] It can be seen that the above structure enables this device to have the following effects:

[0039] Puncture depth feedback: By monitoring impedance changes in the circuit, the system can determine whether the puncture needle has reached the subarachnoid space and issue an alarm when it comes into contact with cerebrospinal fluid, helping doctors to accurately control the puncture depth.

[0040] Real-time cerebrospinal fluid pressure monitoring: The pressure sensor 7 monitors the cerebrospinal fluid pressure inside the outer needle 4, enabling real-time monitoring of cerebrospinal fluid pressure changes. This provides doctors with important physiological parameters, helping to assess the patient's intracranial pressure status and prevent complications.

[0041] Example 2:

[0042] The lumbar puncture needle with monitoring function provided in Example 1 has been further optimized, specifically, as follows: Figure 3 As shown, the end of the signal receiving mechanism 8 is connected to an external alarm mechanism via an external wire 9. The alarm mechanism can be either an audible alarm or a visual alarm.

Claims

1. A lumbar puncture needle with monitoring function, characterized in that, include: The needle body (1) is internally connected to a puncture needle body (2), which is used to detect the puncture depth and monitor the cerebrospinal fluid pressure. The puncture needle body (2) includes an outer needle (4) and an inner needle (5). The inner needle (5) is located inside the outer needle (4). A gap is reserved between the outer needle (4) and the inner needle (5). A signal receiving mechanism (8) is provided at the top of the outer needle (4). The outer needle (4) and the inner needle (5) are electrically connected to the signal receiving mechanism (8) through electrical wires. The upper part of the outer needle (4) is provided with a pressure monitoring mechanism (3) on the outer side for monitoring cerebrospinal fluid pressure. The pressure monitoring mechanism (3) includes a connecting tube (6), which is fixedly connected to the outer needle (4). The interior of the connecting tube (6) is connected to the interior of the outer needle (4). A pressure sensor (7) is fixedly connected inside the connecting tube (6), and the detection end of the pressure sensor (7) extends to the junction of the outer needle (4) and the connecting tube (6).

2. The lumbar puncture needle with monitoring function according to claim 1, characterized in that, The inner side of the outer needle (4) is coated with an insulating layer.

3. The lumbar puncture needle with monitoring function according to claim 1, characterized in that, The end of the signal receiving mechanism (8) is connected to an external alarm mechanism via an external wire (9).

4. The lumbar puncture needle with monitoring function according to claim 3, characterized in that, The alarm mechanism can be either an audible alarm or a visual alarm.

5. The lumbar puncture needle with monitoring function according to claim 1, characterized in that, The needle body (1) is fixedly connected to the top of the outer side with a pick-and-place ring, and the pick-and-place ring has anti-slip texture on the outer side.

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