Composite double-cavity jejunum tube
By designing a composite double-cavity jejunal tube, the use of fixed blocks, limiting cavity, limiting springs, plugs and other components to prevent intestinal fluid from flowing backflow, and the pipeline is fixed using limiting rings and other components, the problems of intestinal fluid return and multiple intubation are solved, and the comfort of use and delivery effect are improved.
Patent Information
- Application Number
- CN202421131756.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-22
- Publication Date
- 2025-07-29
- Estimated Expiration
- 2034-05-22
AI Technical Summary
Existing jejunal tubes are prone to cause intestinal fluid reflux when collecting intestinal fluid samples, and two intubation is required during absorption sampling and nutritional delivery, which increases patient discomfort, and the lack of limiting measures may cause the pipeline to penetrate deep into the body and affect the delivery effect.
A composite double cavity jejunal tube is designed, including a fixed block, a limit cavity, a limit spring, a plug, a threaded ring, a threaded barrel, a filter mesh, a suction barrel and a driving rod. These components are used to prevent the return of intestinal fluid and to prevent the pipe from shifting during nutritional delivery.
It prevents intestinal fluid from flowing back during the liquid aspiration process, reduces discomfort in patients, and only needs to be intubated once during nutrition delivery, avoiding the pipe entering the body and affecting the delivery effect.
Smart Images
Figure CN223158620U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of jejunum tubes, in particular to a composite double-lumen jejunum tube. Background Technique
[0002] A jejunum tube is a medical device commonly used for treating gastrointestinal diseases such as gastroesophageal reflux disease, gastric ulcer, gastric cancer, etc. It is a catheter that can be inserted into the jejunum part of the human body for delivering drugs, nutrients or other therapeutic substances, or collecting samples such as gastric juice and intestinal fluid. The jejunum tube is usually made of medical plastic or silica gel and has good biocompatibility and corrosion resistance. In clinical applications, doctors can insert the jejunum tube into the patient's body through the nasal cavity to reach the jejunum part. Through this catheter, doctors can perform treatment operations such as drug perfusion, nutritional support, and endoscopic examination on the patient's gastrointestinal tract.
[0003] In the prior art, when collecting intestinal fluid samples, the jejunum tube has no anti-backflow measures, which may cause intestinal fluid backflow. And the jejunum tube is usually set as a single root. When sucking liquid for sampling and delivering nutrients, two insertions are required, which increases the discomfort of the patient. Also, the existing jejunum tube has no limiting measures, which may cause the jejunum tube to further penetrate into the patient's body during nutrient delivery, affecting the delivery effect. Therefore, a composite double-lumen jejunum tube is proposed to solve the above problems. Content of the Utility Model
[0004] The purpose of the utility model is to provide a composite double-lumen jejunum tube to solve the problems raised in the above background technique.
[0005] To achieve the above purpose, the utility model provides the following technical solutions:
[0006] A composite double-lumen jejunum tube includes a jejunum tube body. A vertically arranged fixed block is fixedly connected to the bottom end of the jejunum tube body. A through hole communicating with the jejunum tube body is provided at the top end of the fixed block. Below the through hole, a limiting cavity communicating with the through hole and penetrating the fixed block is provided. A vertically arranged limiting spring is fixedly connected to the inner top end of the limiting cavity. A plug is fixedly connected to the bottom end of the limiting spring. A threaded ring communicating with the fixed block is fixedly connected to the bottom end of the fixed block. A threaded cylinder is spirally connected to the outer side of the threaded ring. A filter screen is fixedly connected to the bottom end of the threaded cylinder. A liquid suction cylinder communicating with the jejunum tube body is fixedly connected to the top end of the jejunum tube body. A piston is slidably connected to the inner side of the liquid suction cylinder. A vertically arranged driving rod is fixedly connected to the top end of the piston.
[0007] Preferably, an infusion tube is provided outside the jejunum tube body. A limit ring is provided outside the infusion tube. A pressing ring is provided inside the limit ring. A rubber sheet is fixedly connected inside the pressing ring. A limit rod penetrating the limit ring is fixedly connected outside the pressing ring. A stop block is fixedly connected to one end of the limit rod away from the pressing plate. A return spring is fixedly connected to the outside of the limit rod.
[0008] Preferably, the number of the pressing ring, the rubber sheet, the limit rod, the stop block and the return spring is two. One end of the return spring is fixedly connected to one side of the stop block, and the end of the return spring away from the stop block is fixedly connected to the pressing ring.
[0009] Preferably, the fixing block is cylindrical in shape, and the plug is spherical in shape.
[0010] Preferably, the outer side of the piston is in close fit with the inner side of the liquid suction cylinder, and the threaded cylinder communicates with the threaded ring.
[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0012] 1. In the present utility model, through the setting of the fixing block, the through hole, the limit cavity, the limit spring, the plug, the threaded ring, the threaded cylinder, the filter screen, the liquid suction cylinder, the piston and the driving rod, it is possible to prevent the intestinal fluid from flowing back during the liquid suction process. First, install the filter screen at the bottom of the fixing block, align the threaded cylinder with the threaded ring and tighten it. The filter screen can filter out large particles during the liquid suction process to prevent the jejunum tube body from being blocked. Subsequently, place the jejunum tube body into the patient's body, pull the driving rod, and the piston slides inside the liquid suction cylinder. At this time, due to the low pressure inside the liquid suction cylinder, the intestinal fluid can enter the inside of the liquid suction cylinder through the filter screen, the limit cavity, the through hole and the jejunum tube body. At this time, due to the flow of the intestinal fluid, pressure is exerted on the plug, and the limit spring is compressed, so that the intestinal fluid can pass through smoothly. When the piston stops sliding, the limit spring can reset, making the plug fit tightly with the inside of the limit cavity, and the intestinal fluid cannot flow, preventing the intestinal fluid from flowing back.
[0013] 2. In the present utility model, through the setting of the infusion tube, the limit ring, the pressing ring, the rubber sheet, the limit rod, the stop block and the return spring, it is possible to prevent the pipeline from shifting during the nutrition delivery process, affecting the infusion effect, and only one intubation is required during the liquid suction sampling and nutrition delivery, reducing the discomfort of the patient. First, place the infusion tube into the patient's body, then pull the stop block, and the limit rod and the pressing ring move to compress the return spring. Then move the limit ring near the patient's nasal cavity, release the stop block, and the return spring resets to drive the limit rod and the pressing ring to move. At this time, the rubber sheet fits tightly with the infusion tube, fixing the entire limit component outside the infusion tube. Because the limit component is relatively large in volume, it prevents the infusion tube from continuing to penetrate into the patient's body. Description of the Drawings
[0014] Figure 1This is a schematic diagram of the overall structure of the utility model;
[0015] Figure 2 This is a schematic diagram of the disassembled overall structure of the utility model;
[0016] Figure 3 This is a schematic diagram of the cross-sectional structure of the fixing block of the utility model;
[0017] Figure 4 This is a schematic diagram of the disassembled structure of the limiting component of the utility model.
[0018] In the figure: 1. Jejunum tube body; 2. Fixing block; 3. Through hole; 4. Limiting cavity; 5. Limiting spring; 6. Plug; 7. Threaded ring; 8. Threaded cylinder; 9. Filter screen; 10. Liquid suction cylinder; 11. Piston; 12. Driving rod; 13. Infusion tube; 14. Limiting ring; 15. Pressing ring; 16. Rubber sheet; 17. Limiting rod; 18. Stopper; 19. Return spring. Specific embodiments
[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.
[0020] In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by orientation words such as "front, back, up, down, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the orientation or positional relationships shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description. Without contrary explanations, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, so it cannot be understood as a limitation on the protection scope of the present utility model; the orientation words "inside, outside" refer to the inside and outside relative to the contour of each component itself.
[0021] In addition, it should be noted that using words such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Without additional statements, the above words have no special meanings, so it cannot be understood as a limitation on the protection scope of the present utility model.
[0022] Please refer to Figures 1-4 , the present utility model provides a technical solution:
[0023] A composite double-lumen jejunum tube, comprising a jejunum tube body 1. A vertically arranged fixing block 2 is fixedly connected to the bottom end of the jejunum tube body 1. A through hole 3 communicating with the jejunum tube body 1 is provided at the top end of the fixing block 2. A limiting cavity 4 communicating with the through hole 3 and penetrating the fixing block 2 is provided below the through hole 3. A vertically arranged limiting spring 5 is fixedly connected to the inner top end of the limiting cavity 4. A plug 6 is fixedly connected to the bottom end of the limiting spring 5. A threaded ring 7 communicating with the fixing block 2 is fixedly connected to the bottom end of the fixing block 2. A threaded cylinder 8 is spirally connected to the outer side of the threaded ring 7. A filter screen 9 is fixedly connected to the bottom end of the threaded cylinder 8. A liquid suction cylinder 10 communicating with the jejunum tube body 1 is fixedly connected to the top end of the jejunum tube body 1. A piston 11 is slidably connected to the inner side of the liquid suction cylinder 10. A driving rod 12 arranged vertically is fixedly connected to the top end of the piston 11.
[0024] An infusion tube 13 is arranged on the outer side of the jejunum tube body 1. A limiting ring 14 is arranged on the outer side of the infusion tube 13. A pressing ring 15 is arranged inside the limiting ring 14. A rubber sheet 16 is fixedly connected to the inner side of the pressing ring 15. A limiting rod 17 penetrating the limiting ring 14 is fixedly connected to the outer side of the pressing ring 15. A blocking block 18 is fixedly connected to the end of the limiting rod 17 away from the pressing plate. A return spring 19 is fixedly connected to the outer side of the limiting rod 17. The number of the pressing ring 15, the rubber sheet 16, the limiting rod 17, the blocking block 18 and the return spring 19 is two. One end of the return spring 19 is fixedly connected to one side of the blocking block 18, and the end of the return spring 19 away from the blocking block 18 is fixedly connected to the pressing ring 15. The shape of the fixing block 2 is cylindrical, the shape of the plug 6 is spherical, the outer side of the piston 11 is in close fit with the inner side of the liquid suction cylinder 10, and the threaded cylinder 8 communicates with the threaded ring 7.
[0025] Workflow: First, install the filter screen 9 at the bottom of the fixed block 2, align the threaded cylinder 8 with the threaded ring 7 and tighten it. The filter screen 9 can filter out large particles during the liquid suction process to prevent the jejunum tube body 1 from being blocked. Then, place the infusion tube 13 into the patient's body. Subsequently, pull the block 18, and the limit rod 17 and the pressing ring 15 move to compress the return spring 19. Then, move the limit ring 14 near the patient's nasal cavity, release the block 18, and the return spring 19 resets to drive the limit rod 17 and the pressing ring 15 to move. At this moment, the rubber sheet 16 is in close contact with the infusion tube 13, so that the entire limit assembly is fixed outside the infusion tube 13. Because the limit assembly is relatively large in volume, it prevents the infusion tube 13 from further penetrating into the patient's body. Then, insert the jejunum tube body 1 into the inner side of the infusion tube 13 and place it into the patient's body. Pull the drive rod 12, and the piston 11 slides inside the liquid suction cylinder 10. At this time, due to the low pressure inside the liquid suction cylinder 10, the intestinal fluid can enter the inner side of the liquid suction cylinder 10 through the filter screen 9, the limit cavity 4, the through hole 3, and the jejunum tube body 1. At this time, due to the flow of the intestinal fluid, pressure is applied to the plug 6, and the limit spring 5 is compressed, so that the intestinal fluid can pass through smoothly. When the piston 11 stops sliding, the limit spring 5 can reset, so that the plug 6 is in close contact with the inner side of the limit cavity 4, and the intestinal fluid cannot flow, preventing the intestinal fluid from flowing back. When the intestinal fluid sampling is completed, remove the jejunum tube body 1 from the inner side of the infusion tube 13, and then the nutritional substances can be delivered to the patient through the infusion tube 13, reducing the discomfort of the patient.
[0026] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art. The standard parts used in the present utility model can all be purchased from the market. The special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, and welding that are mature in the prior art. The machines, parts, and equipment all adopt conventional models in the prior art. In addition, the circuit connection adopts the conventional connection method in the prior art, which will not be elaborated here.
[0027] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.
Claims
1. A composite double-lumen jejunum tube, comprising a jejunum tube body (1), characterized in that: The bottom end of the jejunum tube body (1) is fixedly connected with a vertically arranged fixing block (2). The top end of the fixing block (2) is provided with a through hole (3) that communicates with the jejunum tube body (1). Below the through hole (3), there is a limiting cavity (4) that communicates with the through hole (3) and penetrates through the fixing block (2). The inner top end of the limiting cavity (4) is fixedly connected with a vertically arranged limiting spring (5). The bottom end of the limiting spring (5) is fixedly connected with a plug (6). The bottom end of the fixing block (2) is fixedly connected with a threaded ring (7) that penetrates through the fixing block (2). The outer side of the threaded ring (7) is spirally connected with a threaded cylinder (8). The bottom end of the threaded cylinder (8) is fixedly connected with a filter screen (9). The top end of the jejunum tube body (1) is fixedly connected with a liquid suction cylinder (10) that communicates with the jejunum tube body (1). A piston (11) is slidably connected inside the liquid suction cylinder (10). The top end of the piston (11) is fixedly connected with a vertically arranged driving rod (12).
2. The composite double-lumen jejunal tube according to claim 1, wherein: An infusion tube (13) is arranged outside the jejunum tube body (1). A limiting ring (14) is arranged outside the infusion tube (13). A pressing ring (15) is arranged inside the limiting ring (14). A rubber sheet (16) is fixedly connected inside the pressing ring (15). A limiting rod (17) that penetrates through the limiting ring (14) is fixedly connected to the outer side of the pressing ring (15). A blocking block (18) is fixedly connected to the end of the limiting rod (17) away from the pressing plate. A return spring (19) is fixedly connected to the outer side of the limiting rod (17).
3. The composite double-lumen jejunum tube according to claim 2, wherein: The number of the pressing ring (15), the rubber sheet (16), the limiting rod (17), the blocking block (18), and the return spring (19) is two. One end of the return spring (19) is fixedly connected to one side of the blocking block (18). The end of the return spring (19) away from the blocking block (18) is fixedly connected to the pressing ring (15).
4. The composite double-lumen jejunal tube according to claim 1, wherein: The shape of the fixing block (2) is cylindrical. The shape of the plug (6) is spherical.
5. A composite double-lumen jejunum tube according to claim 1, characterized in that: The outer side of the piston (11) is in close fit with the inner side of the liquid suction cylinder (10). The threaded cylinder (8) communicates with the threaded ring (7).