Epidural puncture pressure indicating device
By designing the epidural puncture pressure indicator device, the pressure changes during the puncture process are quantified in real time by using columnar indicators and pressure relief components, the problem of relying on hand-judgment errors is solved, and the accurate quantification and reliability of the puncture process are achieved.
Patent Information
- Application Number
- CN202421101625.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-21
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2034-05-21
AI Technical Summary
During clinical medical and epidural puncture, when the puncture needle breaks through the ligamentum of the calcareous ligament and enters the spinal canal, it depends entirely on the operator's feel, and there is a possibility of subjective judgment errors. This purely experienced operation method is not conducive to the training of medical students and scientific research applications.
An epidural puncture pressure indicator device is designed, including an indication connector, an epidural puncture needle and a syringe. Through the cooperation of a columnar indicator and pressure relief component, the pressure changes during the puncture process are quantified in real time.
The device can accurately quantify the pressure changes during the puncture process, avoid errors in judgments based on operator experience, improve the reliability of the puncture process, and provide a good foundation for medical students' training and scientific research applications.
Smart Images
Figure CN222676391U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical instruments, in particular to an epidural puncture pressure indicating device. Background Art
[0002] In clinical medicine and epidural puncture, the puncture needle breaking through the yellow ligament and entering the spinal canal completely depends on the operator's feel, and therefore, there is a possibility of subjective misjudgment; in addition, this purely empirical operation method is not conducive to the training of medical students and rising to the level of scientific research. To this end, we designed a device that can quantify the pressure before and after the puncture needle enters the epidural space during epidural puncture. Utility Model Content
[0003] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the name of the utility model of this application to avoid blurring the purpose of this section, the abstract of the specification and the name of the utility model, and such simplifications or omissions cannot be used to limit the scope of the utility model.
[0004] Therefore, the purpose of the present invention is to provide an epidural puncture pressure indicating device to solve the problem raised in the above-mentioned background technology that in clinical medical treatment and epidural puncture, the process in which the puncture needle breaks through the yellow ligament and enters the spinal canal completely depends on the operator's feel, so there is a possibility of subjective misjudgment. At the same time, this purely empirical operation method is not conducive to the training of medical students and the problem of rising to the scientific research level.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an epidural puncture pressure indicating device, which includes an indicating connector, an epidural puncture needle and a syringe, the indicating connector including a connecting tube having one end connected to the end seat of the epidural puncture needle and the other end connected to the injection part of the syringe, a columnar indicator which is vertically connected to the middle of the connecting tube and is hollow inside, a pressure relief component is provided at the connection between the connecting tube and the columnar indicator, and the connecting tube is connected to the columnar indicator through the pressure relief component.
[0006] As a preferred solution of the epidural puncture pressure indicating device described in the utility model, scale lines are further arranged on the outside of the columnar indicator along its height direction.
[0007] As a preferred solution of the epidural puncture pressure indicating device described in the utility model, the pressure relief component is a one-way valve fixed on the connecting tube, and the output end of the one-way valve is connected to the end of the columnar indicator.
[0008] As a preferred solution of the epidural puncture pressure indicating device described in the utility model, the bottom of the columnar indicator has a threaded connection portion connected to the pressure relief component.
[0009] As a preferred solution of the epidural puncture pressure indicating device described in the utility model, one end of the connecting tube has a first connector corresponding to the epidural puncture needle end seat, and the other end of the connecting tube has a second connector corresponding to the injection part of the syringe.
[0010] Compared with the prior art, the utility model has the following beneficial effects: the epidural puncture pressure indicating device has the characteristics of simple structure and good practicality. When in use, when the operator pushes the syringe and there is liquid inside the movable syringe and the epidural puncture needle, such as before the puncture needle enters the epidural space, the pressure is extremely small or there is no pressure. At this time, the liquid in the connecting tube will not be squeezed into the columnar indicator, and the liquid level and pressure indication are zero or the index is very low. If the front end resistance increases significantly and enters the epidural space, the pressure inside the entire injection cavity also increases accordingly. At this time, the liquid is squeezed into the columnar indicator in time through the pressure relief component, thereby generating a higher scale index. In this way, the pressure change during the puncture process can be accurately quantified, avoiding relying on the operator's experience and misjudgment, and laying a good foundation for the next step of medical student training and scientific research application. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 This is a schematic diagram of the structure of the utility model after overall connection;
[0012] Figure 2 This is a schematic diagram of the external structure of the indicator connector of the utility model;
[0013] Figure 3 This is a schematic diagram of the structure of the column indicator of the utility model.
[0014] In the figure: 100, indicating connector; 110, connecting tube; 120, columnar indicator; 1201, scale line; 1202, threaded connection part; 130, pressure relief component; 140, first connector; 150, second connector; 200, epidural puncture needle; 300, syringe. DETAILED DESCRIPTION
[0015] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.
[0016] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the implementation of the present invention, for the sake of convenience, the cross-sectional diagram showing the device structure will not be partially enlarged according to the general proportion, and the schematic diagram is only an example, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.
[0017] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.
[0018] Figure 1-Figure 3 The schematic diagram of the entire structure of the epidural puncture pressure indicator device of the utility model is shown in FIG. Figure 1-Figure 3 An epidural puncture pressure indicating device of this embodiment includes an indicating connector 100, an epidural puncture needle 200 and a syringe 300. The indicating connector 100 includes a connecting tube 110, one end of which is connected to the end seat of the epidural puncture needle 200 and the other end is connected to the injection part of the syringe 300. A columnar indicator 120 with a hollow interior is vertically connected to the middle of the connecting tube 110. A pressure relief component 130 is provided at the connection between the connecting tube 110 and the columnar indicator 120, and the connecting tube 110 is connected to the columnar indicator 120 through the pressure relief component 130.
[0019] The outside of the columnar indicator 120 is also provided with scale lines 1201 along its height direction. Here, when liquid is squeezed into the inner cavity of the columnar indicator 120, the set scale lines 1201 can accurately quantify the pressure changes on the columnar indicator 120 during the puncture process, so that the physician can understand the puncture progress more intuitively.
[0020] The pressure relief component 130 is a one-way valve fixed on the connecting tube 110, and the output end of the one-way valve is connected to the end of the columnar indicator 120. In this embodiment, in order to prevent the liquid in the connecting tube 110 from entering the columnar indicator 120 under a low-pressure state, a low-resistance one-way valve is provided on the side wall of the connecting tube 110. In this way, when the pressure in the injection cavity increases, the liquid can directly push open the one-way valve under the action of pressure, thereby allowing the liquid to enter the interior of the columnar indicator 120. The structure is simple and the design is reasonable, thereby ensuring the accuracy of the pressure indication.
[0021] Furthermore, the bottom of the columnar indicator 120 has a threaded connection portion 1202 connected to the pressure relief component 130. In order to facilitate the disassembly of the indicating connector 100, the threaded connection portion 1202 is provided to make the disassembly and assembly operations between the columnar indicator 120 and the connecting tube 110 more convenient, which is beneficial to the later cleaning, recycling, scrapping and drainage of the device, which is simple and effective.
[0022] Furthermore, one end of the connecting tube 110 has a first connector 140 corresponding to the end seat of the epidural puncture needle 200, and the other end of the connecting tube 110 has a second connector 150 corresponding to the injection part of the syringe 300. In this embodiment, the connectors at both ends of the connecting tube 110 are standard interfaces, and the first connector 140 is a Luer connector and the second connector 150 is a tapered sleeve connector. In this way, it can effectively ensure that its two ends can be fixedly connected to the epidural puncture needle 200 and the syringe 300 respectively, with a simple structure and convenient operation.
[0023] In summary, in the epidural puncture pressure indicating device of the present embodiment, when in use, the epidural puncture needle 200 and the syringe 300 are first fixedly connected to the two ends of the connecting tube 110 of the indicating connector 100 through the first connector 140 and the second connector 150. During the puncture process, when the operator pushes the syringe 300 and there is liquid inside the moving syringe 300 and the epidural puncture needle 200, such as before the puncture needle enters the epidural space, the pressure is extremely small or there is no pressure. At this time, the liquid in the connecting tube 110 will not be squeezed into the columnar indicator 120, and the liquid level and pressure indication are zero or the index is very low. If the front end resistance increases significantly and enters the epidural space, the pressure inside the entire injection cavity also increases accordingly. At this time, the liquid is squeezed into the columnar indicator 120 in time through the pressure relief component 130, thereby generating a higher scale index. In this way, the pressure change during the puncture process can be accurately quantified to avoid relying on the operator's experience and making misjudgments.
[0024] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
Claims
1. An epidural puncture pressure indicating device, characterized in that: The invention comprises an indicating connector (100), an epidural puncture needle (200) and a syringe (300), wherein the indicating connector (100) comprises a connecting tube (110) having one end connected to an end seat of the epidural puncture needle (200) and the other end connected to an injection portion of the syringe (300), a columnar indicator (120) which is hollow inside and vertically connected to the middle of the connecting tube (110), a pressure relief component (130) being provided at the connection between the connecting tube (110) and the columnar indicator (120), and the connecting tube (110) is connected to the columnar indicator (120) via the pressure relief component (130).
2. The epidural puncture pressure indicating device according to claim 1, characterized in that: The outer side of the columnar indicator (120) is also provided with scale lines (1201) along its height direction.
3. The epidural puncture pressure indicating device according to claim 1, characterized in that: The pressure relief component (130) is a one-way valve fixed on the connecting tube (110), and the output end of the one-way valve is connected to the end of the columnar indicator (120).
4. The epidural puncture pressure indicating device according to claim 1, characterized in that: The bottom of the columnar indicator (120) has a threaded connection portion (1202) connected to the pressure relief component (130).
5. The epidural puncture pressure indicating device according to claim 1, characterized in that: One end of the connecting tube (110) has a first connector (140) correspondingly connected to the end seat of the epidural puncture needle (200), and the other end of the connecting tube (110) has a second connector (150) correspondingly plugged into the injection portion of the syringe (300).