Guiding assembly capable of improving success rate of blind placement of enteral nutrition tube at bedside and automatically confirming position of catheter

Abstract

The invention discloses a guide assembly capable of improving the success rate of blind placement of an enteral nutrition tube at a bedside and automatically confirming the position of the nutrition tube. The guide assembly comprises the nutrition tube, a clamping head and a guide assembly body. The guide assembly is detachably mounted in the nutrition tube, and the clamping head is movably mounted at the rear end of the exterior of the nutrition tube; through the arranged guide assembly, images can be displayed and transmitted in real time when the nutrient canal is placed, medical staff can be helped to judge the specific position, meanwhile, the position of a catheter can be monitored and fed back, and the pH value of the gastrointestinal part can be monitored to feed back the current situation; meanwhile, the inner side wall, corresponding to the guide assembly, of the nutrient canal is arranged to be of a wedge-shaped surface structure, so that a space can be provided for the guide assembly during movable disassembly, and the guide assembly can be conveniently and rapidly taken out.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical devices, and particularly relates to a guiding assembly for improving the success rate of blindly placing an enteral nutrition tube at the bedside and self - confirming the position of the catheter. Background Art

[0002] There are various methods for indwelling an enteral nutrition tube in patients in the ICU, mainly including: placing the enteral nutrition tube under the guidance of a gastroscope, placing the enteral nutrition tube under the guidance of X - ray in the catheter room, placing the enteral nutrition tube under the guidance of B - ultrasound, and blindly indwelling the enteral nutrition tube at the bedside according to clinical experience. Among these four placement methods, either the placement is inconvenient: it is necessary to invite a gastroenterologist for consultation and then bring gastroscope instruments to the bedside to place the enteral nutrition tube under the guidance of a gastroscope; it is necessary to transport the patient to the catheter room to place the enteral nutrition tube under the guidance of X - ray, resulting in inconvenient placement, and the vital signs of ICU patients are often unstable, making it inconvenient to transport them to the catheter room; moreover, these two methods are relatively expensive. In addition to the cost of the nutrition tube itself, consultation fees, fees for indwelling under the guidance of a gastroscope, catheter room surgery fees, etc. are also required (the first two); or the success rate is relatively low and it is necessary to take an abdominal X - ray to confirm whether the catheter position is successfully indwelled (the latter two).

[0003] Especially for confirming whether the nutrition tube has been placed in the corresponding position by taking an X - ray after placement, the clinical operation is cumbersome and it increases the opportunity of radiation exposure for medical staff, patients and their families.

[0004] Therefore, a guiding assembly for improving the success rate of blindly placing an enteral nutrition tube at the bedside and self - confirming the position of the catheter is needed to solve the above - mentioned technical problems. Summary of the Invention

[0005] In order to solve the above - mentioned technical problems, the present invention designs a guiding assembly for improving the success rate of blindly placing an enteral nutrition tube at the bedside and self - confirming the position of the catheter. The assembly is provided with a camera module, which can display the real - time image during placement, help medical staff judge the specific position, monitor the position of the catheter and give feedback at the same time, and can also monitor the pH value of the gastrointestinal tract for feedback on the current situation. The three methods are mutually verified to facilitate the timely adjustment of the position of the placed enteral nutrition tube by medical staff. In addition, after placement, the module for monitoring the position and feedback of the real - time image can be withdrawn from the body, ensuring the indwelling of the catheter while also being available for reuse after subsequent processing.

[0006] In order to achieve the above - mentioned technical effects, the present invention discloses a guiding assembly for improving the success rate of blindly placing an enteral nutrition tube at the bedside and self - confirming the position of the catheter, including: a nutrition tube, a clamping head, and a guiding assembly; the guiding assembly is detachably installed inside the nutrition tube, and the clamping head is movably installed at the rear end of the outside of the nutrition tube; The guiding assembly includes: a camera, a PH probe, and a position sensor; the PH probe and the position sensor are respectively and fixedly installed on both sides of the camera; a plurality of searchlights are evenly and fixedly installed on both sides of the front end of the camera, and clamping blocks are symmetrically installed on the side wall of the camera, and the clamping blocks are installed in a limiting manner on the clamping grooves formed on the inner side wall of the catheter; a conversion module is fixedly installed at the rear end of the camera, a protection tube is fixedly installed on the conversion module, and a transmission line is fixedly installed on the conversion module inside the protection tube; the internal guiding situation is transmitted to external devices in real time through the transmission line; Further, the PH probe, the position sensor, and the camera are all micro-devices, and the length of the PH probe is longer than the end of the nutrient tube; Further, the protection tube is a flexible hose with plasticity; Further, a wedge surface is provided on the inner side wall of the front end of the nutrient tube, and the wedge surface is an annular wedge surface; Further, the clamping head includes: a fixed ring and clamping petals; a plurality of clamping petals are installed in a circumferential array on the end surface of the fixed ring, and there are intervals between the clamping petals; a pressure plate is fixedly installed on the outer side wall of the end of the clamping petal; the outer side wall of the pressure plate is an arc structure; On the other hand, the present invention discloses a system of a guiding assembly for improving the success rate of blindly placing an enteral nutrition tube at the bedside and self-confirming the position of the catheter; including a conversion module, a camera, a PH probe, and a position sensor; Camera: used to monitor the real-time image during the placement of the nutrient tube and give feedback; PH probe: used to monitor the pH value of the gastrointestinal tract and give feedback; Position sensor: used to monitor the current real-time position and give feedback according to the distance of the gastrointestinal tract, so as to facilitate medical staff to control the position; Conversion module: used to convert the signals monitored and fed back by the camera, PH probe, and position sensor into electrical signals and transmit them to external devices through the transmission line.

[0007] Specifically, the monitoring method of the system is: the camera monitors in real time during the whole process of placing the nutrient tube and feeds the image back to the peripheral device; After the nutrient tube enters the stomach, the PH probe monitors the PH of the current gastric contents and converts it into an electrical signal through the conversion module and feeds it back to the external device. At the same time, the position sensor feeds back the current position and monitors the distance from the inner wall of the stomach, and then feeds it back to the external device through the conversion module for medical staff to refer to.

[0008] The beneficial effects of the present invention are: The present invention designs a guiding assembly for improving the success rate of blindly placing an enteral nutrition tube beside the bed and self - confirming the catheter position, including: a nutrition tube, a clamping head, and a guiding assembly; the guiding assembly is detachably installed inside the nutrition tube, and the clamping head is movably installed at the rear end outside the nutrition tube; through the provided guiding assembly, real - time display and transmission of images can be carried out when the nutrition tube is placed, which can help medical staff judge the specific position. At the same time, the position of the catheter can be monitored and feedback can be provided, and the pH value of the gastrointestinal tract can also be monitored for feedback on the current situation; meanwhile, the inner side wall of the nutrition tube corresponding to the guiding assembly is provided with a wedge - shaped surface structure, which can give space for the guiding assembly to be removed actively, facilitating the rapid removal of the guiding assembly. In addition, the present invention is provided with a clamping head outside the nutrition tube. Through the provided clamping head, a limiting effect can be formed with the nasal cavity part of the patient. On the one hand, it is convenient to directly place the nutrition tube. On the other hand, the design of the clamping flaps of the clamping head can limit the nutrition tube when the guiding assembly is removed, facilitating the removal of the guiding assembly, and can replace the hand to hold the thin nutrition tube, which is convenient and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for describing the embodiments will be briefly introduced below.

[0010] Figure 1 It is an overall structural schematic diagram of a guiding assembly for improving the success rate of blindly placing an enteral nutrition tube beside the bed and self - confirming the catheter position; Figure 2 It is a side view of a guiding assembly for improving the success rate of blindly placing an enteral nutrition tube beside the bed and self - confirming the catheter position; Figure 3 It is an overall structural schematic diagram of the clamping head of a guiding assembly for improving the success rate of blindly placing an enteral nutrition tube beside the bed and self - confirming the catheter position; Figure 4 It is a partial cross - sectional schematic diagram of the end of a guiding assembly for improving the success rate of blindly placing an enteral nutrition tube beside the bed and self - confirming the catheter position; Figure 5 It is an enlarged schematic diagram at position A of a guiding assembly for improving the success rate of blindly placing an enteral nutrition tube beside the bed and self - confirming the catheter position; Figure 6 It is a simple schematic diagram of a use state of a guiding assembly for improving the success rate of blindly placing an enteral nutrition tube beside the bed and self - confirming the catheter position.

[0011] In the drawings, the list of components represented by each reference numeral is as follows: 1 - Nutrition tube, 11 - Clamping head, 111 - Clamping flap, 112 - Pressure plate, 113 - Fixed ring, 12 - Card slot, 13 - Wedge surface, 2 - Transmission line, 3 - Guiding assembly, 31 - Conversion module, 32 - Camera, 33 - PH probe, 37 - Position sensor, 35 - Searchlight, 36 - Block, 37 - Protection tube, 4 - Esophagus. Detailed implementation mode Embodiment 1

[0012] A guiding assembly 3 for improving the success rate of blindly placing an enteral nutrition tube 1 at the bedside and self - confirming the catheter position, comprising: a nutrition tube 1, a clamping head 11, and a guiding assembly 3; the guiding assembly 3 is detachably installed inside the nutrition tube 1, and the clamping head 11 is movably installed at the outer rear end of the nutrition tube 1; by means of the provided guiding assembly 3, the image can be displayed and transmitted in real time when placing the nutrition tube 1, which can help medical staff judge the specific position, and at the same time, the position of the catheter can be monitored and feedback can be given, and the pH value of the gastrointestinal tract can also be monitored for feedback on the current situation. Specifically, the guiding assembly 3 includes: a camera 32, a PH probe 33, and a position sensor 34; the PH probe 33 and the position sensor 34 are respectively fixedly installed on both sides of the camera 32; a plurality of searchlights 35 are evenly fixedly installed on both sides of the front end of the camera 32, and blocks 36 are symmetrically installed on the side wall of the camera 32, and the blocks 36 are installed in a limited - position manner in the card slots 12 opened on the inner side wall of the catheter; a conversion module 31 is fixedly installed at the rear end of the camera 32, a protection tube 37 is fixedly installed on the conversion module 31, and a transmission line 2 is fixedly installed on the conversion module 31 inside the protection tube 37; the internal guiding situation is transmitted to an external device in real time through the transmission line 2. At the same time, in this embodiment, since the nutrition tube 1 is inserted through the nasal cavity, the PH probe 33, the position sensor 34, and the camera 32 are all micro - devices, and the length of the PH probe 33 is longer than the end of the nutrition tube 1; this method is slightly longer than the end of the nutrition tube 1, which can ensure that the probe will not damage the internal tissues (such as the throat, esophagus, etc.) during the insertion process. Specifically, such as Figure 6As shown in the figure, when placed, as long as the length of the PH probe is not greater than its extended length (the arc of the esophagus and pharynx of the human body), the PH probe 33 will not puncture the patient's esophagus during use, ensuring the safety of use. At the same time, after reaching the stomach, it can first contact the patient's stomach for detection. At the same time, in this embodiment, in order to ensure the transmission of internal information and the subsequent removal of the guiding component 3, a protective tube 37 is provided on the conversion module 31, and the protective tube 37 is a flexible hose with plasticity (there is a gap between the protective tube 37 and the nutrition tube 1); by providing the protective tube 37, it can enter together with the nutrition tube 1 and ensure the subsequent removal of the guiding component 3; a wedge surface 13 is provided on the inner side wall of the front end of the nutrition tube 1, and the wedge surface 13 is an annular wedge surface 13; Embodiment 2

[0013] Based on the clamping head 11 described in Embodiment 1, it can form a limiting effect with the patient's nasal cavity part. On the one hand, it is convenient to directly place the nutrition tube 1. On the other hand, the design of the clamping flaps 111 of the clamping head 11 can form a limiting effect on the nutrition tube 1 when the guiding component 3 is removed, facilitating the removal of the guiding component 3; specifically, the clamping head 11 includes: a fixing ring 113 and clamping flaps 111; a number of clamping flaps 111 are circumferentially arranged on the end surface of the fixing ring 113, and there are intervals between the clamping flaps 111; a pressure plate 112 is fixedly installed on the outer side wall of the end of the clamping flap 111; the outer side wall of the pressure plate 112 is an arc structure; the arc structure of the pressure plate 112 can adapt to the structure of the fingers of medical staff, facilitating the pressing use by medical staff; the clamping flap 111 also has a certain elasticity, so that after the clamping flap 111 is pressed, it can return to its original position for the next use, and the clamping head 11 can be sleeved and installed from the end of the nutrition tube 1. Embodiment 3

[0014] A system for a guiding component 3 that improves the success rate of blindly placing an enteral nutrition tube 1 at the bedside and self - confirms the catheter position based on Embodiment 1 and Embodiment 2; includes a conversion module 31, a camera 32, a PH probe 33, and a position sensor 34; Camera 32: Used to monitor the real - time image when placing the nutrition tube 1 and give feedback; PH probe 33: Used to monitor the pH value of the gastrointestinal part and give feedback; Position sensor 34: Used to monitor the current real - time position and give feedback according to the distance of the gastrointestinal part, facilitating medical staff to control the position; Conversion module 31: It is used to convert the signals monitored and fed back by the camera 32, PH probe 33, and position sensor 34 into electrical signals and transmit them to external devices through the transmission line 2. The external devices can be a control panel or a control box with a display function, and a single-chip microcomputer can be used to control and feedback to them. At the same time, the PH probe 33 can be used, and the camera 32 can be a capsule camera 32 or an image sensor; Specifically, the monitoring method of the system is as follows: The camera 32 monitors in real time during the entire process of placing the feeding tube 1, and feeds the images back to the peripheral device for observation and use by medical staff to ensure that the feeding tube 1 can be smoothly inserted; After the feeding tube 1 enters the stomach, the PH probe 33 monitors the PH of the current gastric contents and converts it into an electrical signal through the conversion module and feeds it back to the external device. At the same time, the position sensor 34 feeds back the current position and monitors the distance from the gastric inner wall, and then feeds it back to the external device through the conversion module 31 for reference by medical staff.

[0015] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific embodiments described.

Claims

1. A guide assembly for improving the success rate of blind bedside enteral nutrition tube placement and self-confirming the position of the catheter, characterized in that: include: Feeding tube, clamping head, guide assembly; The guide assembly is detachably mounted inside the nutrition tube, and the clamping head is movably mounted on the rear end of the nutrition tube; The guiding assembly comprises: a camera, a PH probe, and a position sensor; the PH probe and the position sensor are fixedly installed on both sides of the camera respectively; A number of searchlights are evenly fixedly installed on both sides of the front end of the camera, and card blocks are symmetrically installed on the side walls of the camera, and the card blocks are limitedly installed on the card slots opened on the inner wall of the catheter; a conversion module is fixedly installed on the rear end of the camera, and a protective tube is fixedly installed on the conversion module, and a transmission line is fixedly installed on the inside of the protective tube and the conversion module; the internal guidance situation is transmitted to the external equipment in real time through the transmission line.

2. According to claim 1, a guide assembly for improving the success rate of blind bedside enteral nutrition tube placement and self-confirming the position of the catheter, characterized in that: The PH probe, position sensor and camera are all miniature devices, and the length of the PH probe is longer than the end of the nutrition tube.

3. According to claim 1, a guide assembly for improving the success rate of blind bedside enteral nutrition tube placement and self-confirming the position of the catheter, characterized in that: The protection tube is a flexible hose with plasticity.

4. A guide assembly for improving the success rate of blind bedside enteral nutrition tube placement and self-confirming the position of the catheter according to claim 1, characterized in that: A wedge-shaped surface is arranged on the inner side wall of the front end of the nutrition tube, and the wedge-shaped surface is an annular wedge-shaped surface.

5. According to claim 1, a guide assembly for improving the success rate of blind bedside enteral nutrition tube placement and self-confirming the position of the catheter, characterized in that: The clamping head comprises: a fixing ring and clamping petals; a plurality of clamping petals are installed in a circumferential array on the end surface of the fixing ring, and the clamping petals are arranged at intervals; a pressure plate is fixedly installed on the outer side wall of the end of the clamping petal; the outer side wall of the pressure plate is an arc-shaped structure.

6. A system of guiding components for improving the success rate of blind bedside enteral nutrition tube placement and self-confirming the position of the catheter as claimed in any one of claims 1 to 5, characterized in that: Including conversion module, camera, PH probe, position sensor; Camera: used to monitor the real-time image when placing the feeding tube and provide feedback; PH probe: used to monitor the pH value of the gastrointestinal tract and provide feedback; Position sensor: used to monitor the current real-time position and provide feedback based on the distance to the gastrointestinal area, making it easier for medical staff to control the position; Conversion module: used to convert the monitoring feedback signals of the camera, PH probe, and position sensor into electrical signals and transmit them to external devices through transmission lines; Specifically, the monitoring method of the system is as follows: the camera performs real-time monitoring during the entire process of the feeding tube placement, and feeds back the image to the peripheral device; After the feeding tube enters the stomach, the pH probe monitors the current pH of the stomach contents and converts it into an electrical signal through the conversion module and feeds it back to the external device. At the same time, the position sensor feeds back the current position and monitors the distance to the inner wall of the stomach, which is then fed back to the external device through the conversion module for reference by medical staff.

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