Craniocerebral three-channel puncture drainage catheter
By designing a three-channel puncture drainage catheter for craniocerebral, the problem that existing devices are difficult to penetrate deep into the craniocerebral and prone to blockage is solved, achieving more efficient drainage effect and patient comfort.
Patent Information
- Application Number
- CN202421606852.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-05
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-07-05
AI Technical Summary
Existing external craniocerebral drainage devices are difficult to penetrate deep into the craniocerebral depth and are prone to blockage, affecting the drainage effect and patient comfort.
A three-channel puncture drainage catheter of the craniocerebral brain is designed, including a drainage tube and a puncture needle with a hollow rod-shaped structure. The side wall of the drainage tube is equipped with an elongated drainage groove. The puncture needle can be inserted into the drainage groove. Combined with a two-stage structure and a round head design, it enhances the puncture ability and drainage effect.
Deep-in-brain drainage is achieved, reducing the risk of blockage, and improving the smoothness of drainage and the comfort of patients.
Smart Images
Figure CN223170054U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of medical devices, and particularly to a three-channel puncture drainage catheter for the brain. Background Art
[0002] External drainage of the brain is a neurosurgical operation used to treat hydrocephalus, brain abscess, and other intracranial diseases. In traditional external drainage of the brain, doctors usually use a catheter with a circular cross-section to drain intracranial fluid. This design has some limitations in terms of drainage effect and postoperative patient comfort.
[0003] Most current drainage tubes are tubular structures with round holes on the side wall. Due to the small number of drainage round holes, and the brain tissue, fluid, blood, etc. are likely to block the tube. There is also a drainage tube with a cross-section similar to a cross, which is also in the form of a drainage groove and can only be buried outside the brain tissue for drainage, unable to penetrate deep into the brain. Therefore, there is an urgent need for a drainage device that can penetrate deep into the brain and is not easily blocked. Utility Model Content
[0004] In view of this, this application proposes a three-channel puncture drainage catheter for the brain, which can perform drainage deep in the brain.
[0005] According to one aspect of this application, there is provided a three-channel puncture drainage catheter for the brain, including: a drainage tube and a puncture needle;
[0006] The drainage tube is a hollow rod-shaped structure. One end in the length direction is the puncture end, and the other end is the drainage end. The drainage end is an open structure and is connected to the inside of the drainage tube. And the side wall of the drainage tube is provided with drainage grooves, the drainage grooves are connected to the inside of the drainage tube, and the drainage grooves are strip-shaped and arranged along the length direction of the drainage tube;
[0007] The puncture needle matches the inside of the drainage tube and the drainage grooves, and the puncture needle is inserted into the drainage end of the drainage tube to fill the drainage grooves.
[0008] In a possible implementation manner, the puncture end of the drainage end is arc-shaped.
[0009] In a possible implementation manner, the drainage tube includes: a mounting tube and a puncture tube;
[0010] The mounting tube is connected and communicated with the puncture tube. The end of the puncture tube not connected to the mounting tube is the puncture end, and the end of the mounting tube not connected to the puncture tube is the drainage end; and
[0011] The mounting tube is a tubular structure with a hollow interior and open ends at both ends;
[0012] The drainage groove formed on the side wall of the puncture tube communicates with the interior of the installation tube.
[0013] In a possible implementation manner, the cross-section of the installation groove along the length direction of the drainage tube is circular.
[0014] In a possible implementation manner, the number of the drainage grooves is more than two, and they are arranged at intervals along the circumferential direction of the drainage tube.
[0015] In a possible implementation manner, the puncture needle includes a puncture rod and an installation rod;
[0016] The number of the puncture rods matches the number of the drainage grooves;
[0017] One end of the length direction of more than two puncture rods is connected to the installation rod, and the puncture rods match the drainage grooves, and the installation rod matches the interior of the installation tube;
[0018] The puncture rod is embedded in the interior of the drainage groove and adheres to the inner side wall of the drainage groove.
[0019] In a possible implementation manner, the cross-sectional diameter of the installation tube is larger than the cross-sectional diameter of the puncture tube, and the drainage groove formed on the side wall of the puncture tube is aligned with the interior of the installation tube.
[0020] In a possible implementation manner, the ratio of the cross-sectional diameter of the drainage groove to the cross-sectional diameter of the notch of the drainage groove is 2:1.
[0021] In a possible implementation manner, more than two puncture rods are fixedly connected to the side wall of the installation rod.
[0022] In a possible implementation manner, the material hardness of the puncture needle is greater than the material hardness of the drainage tube.
[0023] The beneficial effects of the three-channel cranial puncture drainage catheter in the embodiments of the present application: The cooperation of the puncture needle and the drainage tube enables the drainage tube to have the function of puncture, and can penetrate into deeper parts. Moreover, a strip-shaped drainage groove is formed in the length direction of the side wall of the drainage tube, increasing the contact area of drainage, which can avoid the blockage of the drainage groove. And the top end of the drainage tube is a round head structure, which can ensure the establishment of a proper channel during the puncture process and provide a force-bearing point for the guiding needle, ensuring that the three tips of the puncture needle will not fork. The drainage tube is a two-section structure, one section is a tubular structure with a hollow interior and both ends open, and the other section has an overflow groove on its side wall and communicates with the interior of the other section, and can lead out the tissue fluid through the drainage groove. In this way, the puncture drainage catheter of the present application can complete the drainage of different levels of parts, increase the usage environment, and avoid blockage during the drainage process.
[0024] Other features and aspects of the present application will become apparent from the following detailed description of the exemplary embodiments with reference to the accompanying drawings. Description of the Drawings
[0025] The drawings included in and constituting a part of the specification, together with the specification, illustrate exemplary embodiments, features, and aspects of the present application and are used to explain the principles of the present application.
[0026] Figure 1 Schematic diagram of the drainage tube of the three-channel cranial puncture drainage catheter according to an embodiment of the present application;
[0027] Figure 2 Schematic cross-sectional view of the drainage tube of the three-channel cranial puncture drainage catheter according to an embodiment of the present application;
[0028] Figure 3 Schematic diagram of the puncture needle of the three-channel cranial puncture drainage catheter according to an embodiment of the present application. Detailed Embodiments
[0029] Various exemplary embodiments, features, and aspects of the present application will be described in detail below with reference to the drawings. Like reference numerals in the drawings denote elements having the same or similar functions. Although various aspects of the embodiments are shown in the drawings, the drawings are not necessarily drawn to scale unless otherwise specified.
[0030] It should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention or simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention.
[0031] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality" means two or more unless otherwise specifically defined.
[0032] The term "exemplary" used herein means "serving as an example, embodiment, or illustration". Any embodiment described herein as "exemplary" is not necessarily to be construed as superior to or better than other embodiments.
[0033] In addition, for a better illustration of the present application, numerous specific details are given in the following specific implementation manners. Those skilled in the art should understand that the present application can also be implemented without certain specific details. In some instances, methods, means, elements, and circuits well-known to those skilled in the art are not described in detail to highlight the gist of the present application.
[0034] Referring to Figure 1 、 Figure 2 and Figure 3 , the three-channel cranial puncture drainage catheter according to the embodiment of the present application includes: a drainage tube 100 and a puncture needle 200. The drainage tube 100 is a hollow rod-shaped structure. One end in the length direction is a puncture end 112, and the other end is a drainage end 121. The drainage end 121 is an open structure and is communicated with the inside of the drainage tube 100. A drainage groove 111 is provided on the side wall of the drainage tube 100. The drainage groove 111 is communicated with the inside of the drainage tube 100, and the drainage groove 111 is strip-shaped and is arranged along the length direction of the drainage tube 100. The puncture needle 200 matches the inside of the drainage tube 100 and the drainage groove 111, and the puncture needle 200 is inserted into the drainage end 121 of the drainage tube 100 to fill the inside of the drainage groove 111.
[0035] In this embodiment, the cooperation between the puncture needle 200 and the drainage tube 100 enables the drainage tube 100 to have the function of puncture, and can penetrate into deeper parts. Moreover, a strip-shaped drainage groove 111 is provided on the side wall of the drainage tube 100 in the length direction, which increases the contact area of drainage, can avoid the blockage of the drainage groove 111, and the top end of the drainage tube 100 is a round head structure, which can ensure the establishment of a proper channel during puncture and provide a force-bearing point for the guiding needle, ensuring that the three heads at the tip of the puncture needle 200 will not split. The drainage tube 100 is a two-stage structure. One section is a tubular structure with a hollow inside and open ends at both ends, and the other section has an overflow groove on the side wall and is communicated with the inside of the other section, and can lead out the tissue fluid through the drainage groove 111. Thus, the puncture drainage catheter of the present application can complete the drainage of different levels of parts, increase the usage environment, and avoid blockage during the drainage process.
[0036] In a specific embodiment, the puncture end 112 of the drainage end 121 is arc-shaped. During puncture, the puncture needle 200 is embedded in the inside of the overflow tube, which improves the strength of the drainage tube 100 and fills the drainage groove 111 provided on the side wall of the drainage tube 100. Among them, taking the drainage section of the drainage tube 100 as the top end, the top end is arc-shaped or a circular structure, which can avoid damaging the tissues inside the skull during puncture.
[0037] In a specific embodiment, the drainage tube 100 includes an installation tube 120 and a puncture tube 110. The installation tube 120 is connected to and in communication with the puncture tube 110. One end of the puncture tube 110 that is not connected to the installation tube 120 is the puncture end 112, and one end of the installation tube 120 that is not connected to the puncture tube 110 is the drainage end 121. The installation tube 120 is a tubular structure with a hollow interior and open ends at both ends. The drainage groove 111 formed on the side wall of the puncture tube 110 is in communication with the interior of the installation tube 120. Thus, the puncture needle 200 can be inserted from the drainage end 121 of the installation tube 120, pass through the installation tube 120 and enter the drainage groove 111 that is in communication with the side wall of the puncture tube 110. Since the part of the puncture needle 200 that enters the interior of the drainage groove 111 matches the drainage groove 111, the sealing performance of the position of the drainage groove 111 is ensured, and the drainage groove 111 can be filled to prevent tissue fluid from entering the interior of the drainage groove 111 when entering the cranial cavity, which affects the internal and external pressure difference of the drainage tube 100.
[0038] In a specific embodiment, the cross-section of the installation groove along the length direction of the drainage tube 100 is circular. During the drainage process, there are no dead ends in the circular cross-section drainage groove 111. Therefore, it is possible to prevent tissue from adhering to the inner wall of the drainage groove 111 and avoid blockage inside the drainage groove 111.
[0039] In a specific embodiment, the number of the drainage grooves 111 is two or more, and they are arranged at intervals along the circumferential direction of the drainage tube 100.
[0040] In a specific embodiment, the puncture needle 200 includes a puncture rod 210 and an installation rod 220. The number of the puncture rods 210 matches the number of the drainage grooves 111, and all the drainage grooves 111 formed on the side wall of the puncture tube 110 can be filled. Specifically, one end of the length direction of two or more puncture rods 210 is connected to the installation rod 220 to form a rod-shaped structure that matches the puncture groove and the interior of the installation tube 120.
[0041] Among them, the number of the puncture rods 210 and the number of the drainage grooves 111 are both three, and the puncture rods 210 and the installation rod 220 are arranged in the same direction. The side walls of the three puncture rods 210 are fixed to the side wall of the installation rod 220 to form a trident-shaped structure.
[0042] In this embodiment, when the puncture rods 210 are embedded in the interior of the drainage grooves 111, the three puncture rods 210 can be attached to the inner side walls of the three drainage grooves 111 to maintain the integrity of the side wall of the drainage tube 100 and cut off the communication between the drainage grooves 111 and the interior of the installation tube 120. When drainage is required, the puncture needle 200 is taken out again to connect the drainage grooves 111 with the interior of the installation tube 120 to complete the drainage of tissue fluid.
[0043] In a specific embodiment, the cross-sectional diameter of the mounting tube 120 is larger than the cross-sectional diameter of the puncture tube 110, and the drainage groove 111 provided on the side wall of the puncture tube 110 is aligned with the interior of the mounting tube 120. At this time, when the puncture needle 200 is inserted into the mounting tube 120 and the interior and drainage groove 111, the connection between the drainage groove 111 and the mounting tube 120 can be isolated.
[0044] Specifically, the drainage groove 111 opened on the side wall of the puncture tube 110 can be connected to the interior of the mounting tube 120 along the length direction of the drainage tube 100, so as to facilitate the puncture needle 200 to pass through the interior of the mounting tube 120 and be embedded in the drainage groove 111.
[0045] In one embodiment, the ratio of the cross-sectional diameter of the drainage groove 111 to the cross-sectional diameter of the notch of the drainage groove 111 is 2:1.
[0046] In one embodiment, the material hardness of the puncture needle 200 is greater than that of the drainage tube 100, so that the drainage tube 100 can be supported to reach a deeper position. The drainage tube 100 can be made of silicone or polyethylene.
[0047] In a specific embodiment, the drainage tube 100 has a special inner wall coating, such as a lubricant or an anti-stick coating, which can reduce the adhesion of liquid in the tube, thereby improving the drainage effect.
[0048] In one embodiment, a capillary tube is a thin tube or channel with a very small inner diameter. Due to the principle of capillary action, liquid rises in a small-diameter tube because surface tension pulls the liquid into the tube. This principle helps drainage systems remove fluid from the body. Drainage System Design: A drainage system typically consists of a small, delicate tube or catheter that is inserted into the patient's body and connected to an area of fluid accumulation, such as a cerebrospinal fluid cavity or hematoma. The drainage system is designed to minimize resistance, allowing fluid to flow through the drainage tubes 100 and out of the body. Gravity Assist: Drainage systems often use gravity assistance to aid in fluid drainage. This can be achieved by connecting the drainage system outlet to a low-level collector or drainage bag. Gravity assistance allows fluid to flow from the patient's body through the drainage tubes 100 and into the collector. Pressure Differential: In some cases, drainage systems can also utilize pressure differentials to aid in fluid drainage. This may involve creating negative pressure in the drainage tubes 100 or applying gentle gas pressure. Capillary drainage utilizes capillary action and drainage system design to safely and effectively drain fluid from the body, thereby helping to treat or alleviate medical conditions. This technique is used in neurosurgery and other fields to manage fluid accumulation, such as cerebrospinal fluid accumulation or hematoma drainage. Designing and selecting an appropriate drainage system is crucial to ensure the effectiveness and safety of capillary drainage.
[0049] The embodiments of the present application have been described above. The above description is exemplary and not exhaustive, and is also not limited to the disclosed embodiments. Many modifications and variations are obvious to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The choice of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to technologies in the market, or to enable other ordinary skilled persons in the art to understand the embodiments disclosed herein.
Claims
1. A three-channel puncture drainage catheter for the skull, characterized in that, Comprising: A drainage tube and a puncture needle; The drainage tube is a hollow rod-shaped structure. One end in the length direction is the puncture end, and the other end is the drainage end. The drainage end is an open structure and is in communication with the inside of the drainage tube. A drainage groove is provided on the side wall of the drainage tube. The drainage groove is in communication with the inside of the drainage tube and is strip-shaped, arranged along the length direction of the drainage tube; The puncture needle matches the inside of the drainage tube and the drainage groove, and the puncture needle is inserted into the drainage end of the drainage tube to fill the drainage groove.
2. The three-channel cranial puncture and drainage catheter according to claim 1, wherein The puncture end of the drainage end is arc-shaped.
3. The three-channel cranial puncture drainage catheter according to claim 1, wherein The drainage tube includes: a mounting tube and a puncture tube; The mounting tube is connected and in communication with the puncture tube. The end of the puncture tube not connected to the mounting tube is the puncture end, and the end of the mounting tube not connected to the puncture tube is the drainage end; and The mounting tube is a tubular structure with a hollow interior and open ends at both ends; The drainage groove provided on the side wall of the puncture tube is in communication with the inside of the mounting tube.
4. The three-channel cranial puncture and drainage catheter according to claim 3, characterized in that, The cross-section of the mounting tube along the length direction of the drainage tube is circular.
5. The three-channel cranial puncture and drainage catheter according to claim 4, characterized in that, The number of the drainage grooves is more than two, and they are arranged at intervals along the circumferential direction of the drainage tube.
6. The three-channel cranial puncture and drainage catheter according to claim 5, characterized in that The puncture needle includes: a puncture rod and a mounting rod; The number of the puncture rods matches the number of the drainage grooves; One end in the length direction of more than two puncture rods is connected to the mounting rod, and the puncture rods match the drainage grooves, and the mounting rod matches the inside of the mounting tube; The puncture rods are embedded in the inside of the drainage grooves and are attached to the inner side walls of the drainage grooves.
7. The three-channel cranial puncture and drainage catheter according to claim 6, wherein The cross-sectional diameter of the mounting tube is larger than the cross-sectional diameter of the puncture tube, and the drainage groove provided on the side wall of the puncture tube is aligned with the inside of the mounting tube.
8. The three-channel puncture and drainage catheter for the skull brain according to claim 4, wherein The ratio of the cross-sectional diameter of the drainage groove to the cross-sectional diameter of the groove opening of the drainage groove is 2:
1.
9. The three-channel puncture and drainage catheter for the skull brain according to claim 6, wherein, More than two of the puncture rods are fixedly connected to the side wall of the mounting rod.
10. The three-channel intracranial puncture drainage catheter according to claim 1, characterized in that, The material hardness of the puncture needle is greater than the material hardness of the drainage tube.