Improved lumbar puncture needle for measuring cerebrospinal fluid pressure

Abstract

This utility model discloses an improved lumbar puncture needle for measuring cerebrospinal fluid pressure, comprising a needle body, an intracranial pressure detection component, and a cerebrospinal fluid collection component. The needle body includes a needle tube, a needle hub, and a needle core. The needle hub includes a seat and a sealing tube. The seat is disposed at the end of the needle tube, and the sealing tube is disposed within the seat and coaxially arranged with the needle tube. One end of the sealing tube is connected to the needle tube, and the other end has a sealing rubber plug. The needle core passes through the sealing tube into the needle tube. The intracranial pressure detection component includes a catheter, a pressure measuring element, and a display. One end of the catheter is connected to the end of the needle tube, and the other end has a pressure measuring element. The display is connected to the pressure measuring element and is used to display the intracranial pressure value. The cerebrospinal fluid collection component includes a guide tube and a collection tube. The guide tube includes a first end and a second end. The first end is connected to the sealing tube and has a switch valve for opening or closing the first end. The second end is detachably connected to the collection tube. The improved lumbar puncture needle for measuring cerebrospinal fluid pressure provided by this utility model has a simple structure and is easy to use. It can facilitate medical staff to measure cerebrospinal fluid pressure in order to assess the patient's physical condition.

Description

Technical Field

[0001] This utility model relates to the field of medical supplies technology, and in particular to a modified lumbar puncture needle that can measure cerebrospinal fluid pressure. Background Technology

[0002] A lumbar puncture, also known as a lumbar intervertebral puncture, is a method of measuring intracranial pressure and extracting cerebrospinal fluid for examination by puncturing the intervertebral space in the lumbar region.

[0003] In existing technologies, intracranial pressure (ICP) measurement typically requires the use of a pressure measuring tube. During measurement, the needle core is removed from the puncture needle, and the measuring tube is then attached to the needle. The level of intracranial pressure is determined by observing the height of cerebrospinal fluid within the measuring tube. This method is relatively cumbersome to perform and inconvenient for reading the measurement results, thus affecting the doctor's ability to use the equipment. Utility Model Content

[0004] This invention aims to at least partially solve one of the technical problems in the related art. Therefore, the purpose of this invention is to propose an improved lumbar puncture needle for measuring cerebrospinal fluid pressure.

[0005] To achieve the above objectives, a modified lumbar puncture needle capable of measuring cerebrospinal fluid pressure according to an embodiment of the present invention includes:

[0006] The needle body includes a needle tube, a needle hub, and a needle core; the needle hub includes a seat and a sealing tube, the seat is disposed at the end of the needle tube, the sealing tube is disposed in the seat and coaxially disposed with the needle tube, one end of the sealing tube is connected to the needle tube, and the other end is provided with a sealing rubber plug; the needle core passes through the sealing tube into the needle tube.

[0007] An intracranial pressure detection assembly includes a catheter, a pressure measuring element, and a display; one end of the catheter is connected to the end of the needle tube, and the other end is provided with a pressure measuring element; the display is connected to the pressure measuring element and is used to display the intracranial pressure value.

[0008] A cerebrospinal fluid collection assembly includes a guide tube and a collection tube; the guide tube includes a first end and a second end, the first end is connected to the sealing tube, and a switch valve is provided on the first end for opening or closing the first end; the second end is detachably connected to the collection tube.

[0009] The improved lumbar puncture needle for measuring cerebrospinal fluid pressure provided by this utility model has a simple structure and is easy to use. It can facilitate medical staff to measure cerebrospinal fluid pressure in order to assess the patient's physical condition.

[0010] In addition, the improved lumbar puncture needle for measuring cerebrospinal fluid pressure according to the above embodiments of the present invention may also have the following additional technical features:

[0011] According to one embodiment of the present invention, the pressure measuring element is detachably installed inside the conduit via a mounting base.

[0012] According to one embodiment of the present invention, the mounting base is threadedly connected to the conduit.

[0013] According to one embodiment of the present invention, the liquid guide tube is a flexible tube.

[0014] According to one embodiment of the present invention, the switching valve is a flow regulating valve.

[0015] According to one embodiment of the present invention, a sealing cover is further included. The sealing cover includes an annular cover and a silicone cover. The annular cover is sleeved on the other end of the sealing tube, and the silicone cover is disposed in the annular cover and is positioned opposite to the sealing plug.

[0016] According to one embodiment of the present invention, the display component is provided with a storage groove for storing wires.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0019] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model;

[0020] Figure 2 This is a cross-sectional structural schematic diagram of an embodiment of the present utility model;

[0021] Figure 3 yes Figure 2 A magnified view of a portion of point A in the middle.

[0022] Figure label:

[0023] 10 needles;

[0024] Syringe 11;

[0025] Needle hub 12;

[0026] base 121;

[0027] Sealing tube 122;

[0028] Sealing plug 1221;

[0029] Sealing cap 1222;

[0030] Needle core 13;

[0031] Intracranial pressure detection component 20;

[0032] Catheter 21;

[0033] Pressure sensing element 22;

[0034] Display component 23;

[0035] Mounting base 24;

[0036] Cerebrospinal fluid collection component 30;

[0037] Liquid delivery tube 31;

[0038] Collection tube 32;

[0039] Switch valve 33.

[0040] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0041] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0042] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "circumferential", "radial", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0043] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0044] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0045] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0046] The following describes in detail, with reference to the accompanying drawings, an improved lumbar puncture needle capable of measuring cerebrospinal fluid pressure according to an embodiment of the present invention.

[0047] Reference Figures 1 to 3 As shown, the improved lumbar puncture needle for measuring cerebrospinal fluid pressure provided according to the embodiment of the present invention includes a needle body 10, an intracranial pressure detection component 20, and a cerebrospinal fluid collection component 30.

[0048] The needle body 10 includes a needle tube 11, a needle seat 12, and a needle core 13; the needle seat 12 includes a seat body 121 and a sealing tube 122. The seat body 121 is disposed at the end of the needle tube 11, and the sealing tube 122 is disposed inside the seat body 121 and coaxially disposed with the needle tube 11. One end of the sealing tube 122 is connected to the needle tube 11, and the other end is provided with a sealing rubber plug 1221; the needle core 13 passes through the sealing tube 122 and is inserted into the needle tube 11.

[0049] The needle body 10 is used to puncture the subarachnoid space through the lumbar intervertebral space. It specifically includes a needle tube 11, a needle hub 12, and a needle core 13. One end of the needle tube 11 is a pointed end, which can puncture the lumbar intervertebral space. The other end is connected to the seat body 121 of the needle hub 12 and communicates with the sealing tube 122 inside the seat body 121. Thus, the needle tube 11 can be connected to the sealing tube 122 so that the needle core 13 can be inserted into the needle body 10 through the sealing tube 122. The other end of the sealing tube 122 is provided with a sealing rubber plug 1221. Therefore, this end is a sealed end. After the needle core 13 is pulled out, the sealing rubber plug 1221 can seal the sealing tube 122, so that cerebrospinal fluid will not flow out from the sealing tube 122.

[0050] The cerebrospinal fluid collection assembly 30 includes a guide tube 31 and a collection tube 32; the guide tube 31 includes a first end and a second end, the first end is connected to the sealing tube 122, and a switch valve 33 is provided on the first end, the switch valve 33 is used to open or close the first end; the second end is detachably connected to the collection tube 32.

[0051] The cerebrospinal fluid collection assembly 30 is used to collect cerebrospinal fluid. Specifically, it includes a drainage tube 31 and a collection tube 32. The drainage tube 31 is connected to the collection tube 32 and is used to guide cerebrospinal fluid into the collection tube 32. It is equipped with a switch valve 33, which can control the opening or closing of the drainage tube 31. That is, when the drainage tube 31 is open, cerebrospinal fluid can enter the collection tube 32 along the drainage tube 31. Conversely, when the drainage tube 31 is closed, cerebrospinal fluid will not flow into the collection tube 32.

[0052] The intracranial pressure detection assembly 20 includes a catheter 21, a pressure measuring element 22, and a display element 23; one end of the catheter 21 is connected to the end of the needle tube 11, and the other end is provided with a pressure measuring element 22. The display element 23 is connected to the pressure measuring element 22 and is used to display the intracranial pressure value.

[0053] The intracranial pressure detection component 20 is used to measure the pressure of cerebrospinal fluid, i.e., intracranial pressure. It specifically includes a catheter 21, a pressure measuring element 22, and a display 23. The catheter 21 is connected to the needle tube 11, allowing cerebrospinal fluid to flow from the needle tube 11 into the catheter 21. The pressure measuring element 22 is disposed within the catheter 21 and connected to the display 23. Therefore, the pressure measuring element 22 measures the force exerted by the cerebrospinal fluid on it, which is then displayed on the display 23. Medical personnel can then determine the pressure of the cerebrospinal fluid, i.e., intracranial pressure, based on the relevant values. Both the pressure measuring element 22 and the display 23 are common electronic components in the prior art, and will not be described in detail in this embodiment.

[0054] More specifically, in use, the doctor can insert the needle 11 into the subarachnoid space above the spine according to the pre-marked area on the patient's back. Then, the needle core 13 is removed. Because a sealing plug 1221 is installed inside the sealing tube 122, the sealing plug 1221 automatically closes after the needle core 13 is removed, thus keeping the sealing tube 122 sealed and preventing leakage. When intracranial pressure needs to be measured, the infusion tube 31 can be closed using the valve 33. At this time, cerebrospinal fluid cannot flow out of either the sealing tube 122 or the infusion tube 31, but can only enter the catheter 21 and exert a force on the pressure measuring element 22. The pressure measuring element 22 then displays the detected force in real time through the display 23. Furthermore, the doctor can determine the patient's intracranial pressure based on the measured value. No additional operation is required during the detection process, and the value can be read in real time, making it very convenient. After the test is completed, when it is necessary to collect cerebrospinal fluid, the fluid inlet tube 31 is opened by switching valve 33, and the cerebrospinal fluid can flow from the fluid inlet tube 31 into the collection tube for collection, so as to facilitate subsequent testing.

[0055] The improved lumbar puncture needle for measuring cerebrospinal fluid pressure provided by this utility model has a simple structure and is easy to use. It can facilitate medical staff to measure cerebrospinal fluid pressure and display the measured value in real time, so as to help doctors judge the patient's physical condition.

[0056] Advantageously, in one embodiment of the present invention, the pressure measuring element 22 is detachably mounted in the conduit 21 via a mounting base 24.

[0057] Preferably, the mounting base 24 is threadedly connected to the conduit 21.

[0058] Furthermore, the display component 23 is provided with a storage slot for storing wires.

[0059] In other words, the pressure measuring element 22 is connected to the display element 23 via a wire and is installed inside the catheter 21 via the mounting base 24. This allows the intracranial pressure detection assembly 20 to be disassembled after use, and the wires to be stored in the storage slot on the display element 23 for convenient storage. Furthermore, the mounting base 24 and the catheter 21 are threaded together, facilitating easy assembly and disassembly and operation.

[0060] Advantageously, in another embodiment of the present invention, the liquid guide tube 31 is a flexible tube.

[0061] Preferably, the switching valve 33 is a flow regulating valve.

[0062] Thus, the fluid inlet tube 31 is made of a flexible tube, and the switch valve 33 is made of a flow regulating valve. This allows for easy control of the opening and closing of the fluid inlet tube 31, so that it can be closed when detecting intracranial pressure and opened when collecting cerebrospinal fluid.

[0063] Advantageously, in some embodiments of the present invention, a sealing cover 1222 is also included, the sealing cover 1222 comprising an annular cover and a silicone cover, the annular cover being sleeved on the other end of the sealing tube 122, and the silicone cover being disposed in the annular cover and positioned opposite to the sealing plug 1221.

[0064] The sealing cap 1222 is an auxiliary cap that can be placed on the end of the sealing tube 122. The silicone cap on it can work with the sealing plug 1221 to perform a secondary seal on the sealing tube 122, preventing leakage from the sealing tube 122 after the needle core 13 is removed, which would affect the intracranial pressure detection component 20 in detecting intracranial pressure.

[0065] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0066] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. An improved lumbar puncture needle for measuring cerebrospinal fluid pressure, characterized by, include: The needle body includes a needle tube, a needle hub, and a needle core; the needle hub includes a seat and a sealing tube, the seat is disposed at the end of the needle tube, the sealing tube is disposed in the seat and coaxially disposed with the needle tube, one end of the sealing tube is connected to the needle tube, and the other end is provided with a sealing rubber plug; the needle core passes through the sealing tube into the needle tube. An intracranial pressure detection assembly includes a catheter, a pressure measuring element, and a display; one end of the catheter is connected to the end of the needle tube, and the other end is provided with a pressure measuring element; the display is connected to the pressure measuring element and is used to display the intracranial pressure value. A cerebrospinal fluid collection assembly includes a guide tube and a collection tube; the guide tube includes a first end and a second end, the first end is connected to the sealing tube, and a switch valve is provided on the first end for opening or closing the first end; the second end is detachably connected to the collection tube.

2. The modified lumbar puncture needle for measuring pressure of cerebrospinal fluid according to claim 1, wherein The pressure measuring element is detachably installed inside the conduit via a mounting base.

3. The modified lumbar puncture needle for measuring pressure of cerebrospinal fluid according to claim 2, wherein The mounting base is threadedly connected to the conduit.

4. The modified lumbar puncture needle for measuring pressure of cerebrospinal fluid according to claim 1, wherein The liquid guide tube is a flexible tube.

5. The modified lumbar puncture needle for measuring pressure of cerebrospinal fluid according to claim 4, wherein The switch valve is a flow regulating valve.

6. The modified lumbar puncture needle for measuring pressure of cerebrospinal fluid according to claim 1, wherein It also includes a sealing cap, which comprises an annular cover and a silicone cover. The annular cover is fitted onto the other end of the sealing tube, and the silicone cover is disposed within the annular cover and is positioned opposite to the sealing plug.

7. The modified lumbar puncture needle for measuring pressure of cerebrospinal fluid according to claim 1, wherein The display component has a storage slot for storing wires.

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